* [RFC] Remove AGP support from Radeon/Nouveau/TTM
@ 2020-05-11 17:17 ` Christian König
0 siblings, 0 replies; 81+ messages in thread
From: Christian König @ 2020-05-11 17:17 UTC (permalink / raw)
To: dri-devel-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW,
amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW,
nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW
Hi guys,
Well let's face it AGP is a total headache to maintain and dead for at least 10+ years.
We have a lot of x86 specific stuff in the architecture independent graphics memory management to get the caching right, abusing the DMA API on multiple occasions, need to distinct between AGP and driver specific page tables etc etc...
So the idea here is to just go ahead and remove the support from Radeon and Nouveau and then drop the necessary code from TTM.
For Radeon this means that we just switch over to the driver specific page tables and everything should more or less continue to work.
For Nouveau I'm not 100% sure, but from the code it of hand looks like we can do it similar to Radeon.
Please comment what you think about this.
Regards,
Christian.
^ permalink raw reply [flat|nested] 81+ messages in thread
* [RFC] Remove AGP support from Radeon/Nouveau/TTM
@ 2020-05-11 17:17 ` Christian König
0 siblings, 0 replies; 81+ messages in thread
From: Christian König @ 2020-05-11 17:17 UTC (permalink / raw)
To: dri-devel, amd-gfx, nouveau
Hi guys,
Well let's face it AGP is a total headache to maintain and dead for at least 10+ years.
We have a lot of x86 specific stuff in the architecture independent graphics memory management to get the caching right, abusing the DMA API on multiple occasions, need to distinct between AGP and driver specific page tables etc etc...
So the idea here is to just go ahead and remove the support from Radeon and Nouveau and then drop the necessary code from TTM.
For Radeon this means that we just switch over to the driver specific page tables and everything should more or less continue to work.
For Nouveau I'm not 100% sure, but from the code it of hand looks like we can do it similar to Radeon.
Please comment what you think about this.
Regards,
Christian.
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 81+ messages in thread
* [RFC] Remove AGP support from Radeon/Nouveau/TTM
@ 2020-05-11 17:17 ` Christian König
0 siblings, 0 replies; 81+ messages in thread
From: Christian König @ 2020-05-11 17:17 UTC (permalink / raw)
To: dri-devel, amd-gfx, nouveau
Hi guys,
Well let's face it AGP is a total headache to maintain and dead for at least 10+ years.
We have a lot of x86 specific stuff in the architecture independent graphics memory management to get the caching right, abusing the DMA API on multiple occasions, need to distinct between AGP and driver specific page tables etc etc...
So the idea here is to just go ahead and remove the support from Radeon and Nouveau and then drop the necessary code from TTM.
For Radeon this means that we just switch over to the driver specific page tables and everything should more or less continue to work.
For Nouveau I'm not 100% sure, but from the code it of hand looks like we can do it similar to Radeon.
Please comment what you think about this.
Regards,
Christian.
_______________________________________________
amd-gfx mailing list
amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx
^ permalink raw reply [flat|nested] 81+ messages in thread
* [PATCH 1/3] drm/radeon: remove AGP support
2020-05-11 17:17 ` Christian König
(?)
@ 2020-05-11 17:17 ` Christian König
-1 siblings, 0 replies; 81+ messages in thread
From: Christian König @ 2020-05-11 17:17 UTC (permalink / raw)
To: dri-devel-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW,
amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW,
nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW
AGP is deprecated for 10+ years now and not used any more on modern hardware.
Old hardware should continue to work in PCI mode.
Signed-off-by: Christian König <christian.koenig@amd.com>
---
drivers/gpu/drm/radeon/Makefile | 4 +-
drivers/gpu/drm/radeon/evergreen.c | 7 -
drivers/gpu/drm/radeon/r100.c | 10 +-
drivers/gpu/drm/radeon/r300.c | 9 -
drivers/gpu/drm/radeon/r420.c | 9 -
drivers/gpu/drm/radeon/r520.c | 8 -
drivers/gpu/drm/radeon/r600.c | 6 -
drivers/gpu/drm/radeon/radeon.h | 11 -
drivers/gpu/drm/radeon/radeon_agp.c | 290 -------------------------
drivers/gpu/drm/radeon/radeon_device.c | 23 +-
drivers/gpu/drm/radeon/radeon_drv.c | 9 -
drivers/gpu/drm/radeon/radeon_ttm.c | 39 ----
drivers/gpu/drm/radeon/rv515.c | 9 -
drivers/gpu/drm/radeon/rv770.c | 7 -
14 files changed, 4 insertions(+), 437 deletions(-)
delete mode 100644 drivers/gpu/drm/radeon/radeon_agp.c
diff --git a/drivers/gpu/drm/radeon/Makefile b/drivers/gpu/drm/radeon/Makefile
index c693b2ca0329..77429cfd303e 100644
--- a/drivers/gpu/drm/radeon/Makefile
+++ b/drivers/gpu/drm/radeon/Makefile
@@ -61,8 +61,8 @@ radeon-y := radeon_drv.o
# add KMS driver
radeon-y += radeon_device.o radeon_asic.o radeon_kms.o \
- radeon_atombios.o radeon_agp.o atombios_crtc.o radeon_combios.o \
- atom.o radeon_fence.o radeon_ttm.o radeon_object.o radeon_gart.o \
+ radeon_atombios.o atombios_crtc.o radeon_combios.o atom.o \
+ radeon_fence.o radeon_ttm.o radeon_object.o radeon_gart.o \
radeon_legacy_crtc.o radeon_legacy_encoders.o radeon_connectors.o \
radeon_encoders.o radeon_display.o radeon_cursor.o radeon_i2c.o \
radeon_clocks.o radeon_fb.o radeon_gem.o radeon_ring.o radeon_irq_kms.o \
diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c
index 14d90dc376e7..66b3d9a2c6dd 100644
--- a/drivers/gpu/drm/radeon/evergreen.c
+++ b/drivers/gpu/drm/radeon/evergreen.c
@@ -5216,12 +5216,6 @@ int evergreen_init(struct radeon_device *rdev)
r = radeon_fence_driver_init(rdev);
if (r)
return r;
- /* initialize AGP */
- if (rdev->flags & RADEON_IS_AGP) {
- r = radeon_agp_init(rdev);
- if (r)
- radeon_agp_disable(rdev);
- }
/* initialize memory controller */
r = evergreen_mc_init(rdev);
if (r)
@@ -5315,7 +5309,6 @@ void evergreen_fini(struct radeon_device *rdev)
r600_vram_scratch_fini(rdev);
radeon_gem_fini(rdev);
radeon_fence_driver_fini(rdev);
- radeon_agp_fini(rdev);
radeon_bo_fini(rdev);
radeon_atombios_fini(rdev);
kfree(rdev->bios);
diff --git a/drivers/gpu/drm/radeon/r100.c b/drivers/gpu/drm/radeon/r100.c
index 24c8db673931..320b1b40a30a 100644
--- a/drivers/gpu/drm/radeon/r100.c
+++ b/drivers/gpu/drm/radeon/r100.c
@@ -3382,7 +3382,7 @@ void r100_bandwidth_update(struct radeon_device *rdev)
if (rdev->flags & RADEON_IS_AGP) {
fixed20_12 agpmode_ff;
- agpmode_ff.full = dfixed_const(radeon_agpmode);
+ agpmode_ff.full = dfixed_const(0);
temp_ff.full = dfixed_const_666(16);
sclk_eff_ff.full -= dfixed_mul(agpmode_ff, temp_ff);
}
@@ -3992,7 +3992,6 @@ void r100_fini(struct radeon_device *rdev)
radeon_gem_fini(rdev);
if (rdev->flags & RADEON_IS_PCI)
r100_pci_gart_fini(rdev);
- radeon_agp_fini(rdev);
radeon_irq_kms_fini(rdev);
radeon_fence_driver_fini(rdev);
radeon_bo_fini(rdev);
@@ -4068,13 +4067,6 @@ int r100_init(struct radeon_device *rdev)
r100_errata(rdev);
/* Initialize clocks */
radeon_get_clock_info(rdev->ddev);
- /* initialize AGP */
- if (rdev->flags & RADEON_IS_AGP) {
- r = radeon_agp_init(rdev);
- if (r) {
- radeon_agp_disable(rdev);
- }
- }
/* initialize VRAM */
r100_mc_init(rdev);
/* Fence driver */
diff --git a/drivers/gpu/drm/radeon/r300.c b/drivers/gpu/drm/radeon/r300.c
index 3b7ead5be5bf..afd688629cf9 100644
--- a/drivers/gpu/drm/radeon/r300.c
+++ b/drivers/gpu/drm/radeon/r300.c
@@ -1498,7 +1498,6 @@ void r300_fini(struct radeon_device *rdev)
rv370_pcie_gart_fini(rdev);
if (rdev->flags & RADEON_IS_PCI)
r100_pci_gart_fini(rdev);
- radeon_agp_fini(rdev);
radeon_irq_kms_fini(rdev);
radeon_fence_driver_fini(rdev);
radeon_bo_fini(rdev);
@@ -1547,13 +1546,6 @@ int r300_init(struct radeon_device *rdev)
r300_errata(rdev);
/* Initialize clocks */
radeon_get_clock_info(rdev->ddev);
- /* initialize AGP */
- if (rdev->flags & RADEON_IS_AGP) {
- r = radeon_agp_init(rdev);
- if (r) {
- radeon_agp_disable(rdev);
- }
- }
/* initialize memory controller */
r300_mc_init(rdev);
/* Fence driver */
@@ -1592,7 +1584,6 @@ int r300_init(struct radeon_device *rdev)
rv370_pcie_gart_fini(rdev);
if (rdev->flags & RADEON_IS_PCI)
r100_pci_gart_fini(rdev);
- radeon_agp_fini(rdev);
rdev->accel_working = false;
}
return 0;
diff --git a/drivers/gpu/drm/radeon/r420.c b/drivers/gpu/drm/radeon/r420.c
index 1d4c04e0a449..3cb337dacd56 100644
--- a/drivers/gpu/drm/radeon/r420.c
+++ b/drivers/gpu/drm/radeon/r420.c
@@ -366,7 +366,6 @@ void r420_fini(struct radeon_device *rdev)
rv370_pcie_gart_fini(rdev);
if (rdev->flags & RADEON_IS_PCI)
r100_pci_gart_fini(rdev);
- radeon_agp_fini(rdev);
radeon_irq_kms_fini(rdev);
radeon_fence_driver_fini(rdev);
radeon_bo_fini(rdev);
@@ -419,13 +418,6 @@ int r420_init(struct radeon_device *rdev)
/* Initialize clocks */
radeon_get_clock_info(rdev->ddev);
- /* initialize AGP */
- if (rdev->flags & RADEON_IS_AGP) {
- r = radeon_agp_init(rdev);
- if (r) {
- radeon_agp_disable(rdev);
- }
- }
/* initialize memory controller */
r300_mc_init(rdev);
r420_debugfs(rdev);
@@ -470,7 +462,6 @@ int r420_init(struct radeon_device *rdev)
rv370_pcie_gart_fini(rdev);
if (rdev->flags & RADEON_IS_PCI)
r100_pci_gart_fini(rdev);
- radeon_agp_fini(rdev);
rdev->accel_working = false;
}
return 0;
diff --git a/drivers/gpu/drm/radeon/r520.c b/drivers/gpu/drm/radeon/r520.c
index fc78e64ae727..76ac87d72406 100644
--- a/drivers/gpu/drm/radeon/r520.c
+++ b/drivers/gpu/drm/radeon/r520.c
@@ -288,13 +288,6 @@ int r520_init(struct radeon_device *rdev)
}
/* Initialize clocks */
radeon_get_clock_info(rdev->ddev);
- /* initialize AGP */
- if (rdev->flags & RADEON_IS_AGP) {
- r = radeon_agp_init(rdev);
- if (r) {
- radeon_agp_disable(rdev);
- }
- }
/* initialize memory controller */
r520_mc_init(rdev);
rv515_debugfs(rdev);
@@ -324,7 +317,6 @@ int r520_init(struct radeon_device *rdev)
radeon_ib_pool_fini(rdev);
radeon_irq_kms_fini(rdev);
rv370_pcie_gart_fini(rdev);
- radeon_agp_fini(rdev);
rdev->accel_working = false;
}
return 0;
diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c
index d9a33ca768f3..4a5ac15893c2 100644
--- a/drivers/gpu/drm/radeon/r600.c
+++ b/drivers/gpu/drm/radeon/r600.c
@@ -3286,11 +3286,6 @@ int r600_init(struct radeon_device *rdev)
r = radeon_fence_driver_init(rdev);
if (r)
return r;
- if (rdev->flags & RADEON_IS_AGP) {
- r = radeon_agp_init(rdev);
- if (r)
- radeon_agp_disable(rdev);
- }
r = r600_mc_init(rdev);
if (r)
return r;
@@ -3353,7 +3348,6 @@ void r600_fini(struct radeon_device *rdev)
radeon_irq_kms_fini(rdev);
r600_pcie_gart_fini(rdev);
r600_vram_scratch_fini(rdev);
- radeon_agp_fini(rdev);
radeon_gem_fini(rdev);
radeon_fence_driver_fini(rdev);
radeon_bo_fini(rdev);
diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h
index 30e32adc1fc6..377e1403b134 100644
--- a/drivers/gpu/drm/radeon/radeon.h
+++ b/drivers/gpu/drm/radeon/radeon.h
@@ -91,7 +91,6 @@ extern int radeon_no_wb;
extern int radeon_modeset;
extern int radeon_dynclks;
extern int radeon_r4xx_atom;
-extern int radeon_agpmode;
extern int radeon_vram_limit;
extern int radeon_gart_size;
extern int radeon_benchmarking;
@@ -1116,16 +1115,6 @@ typedef int (*radeon_packet0_check_t)(struct radeon_cs_parser *p,
typedef int (*radeon_packet3_check_t)(struct radeon_cs_parser *p,
struct radeon_cs_packet *pkt);
-
-/*
- * AGP
- */
-int radeon_agp_init(struct radeon_device *rdev);
-void radeon_agp_resume(struct radeon_device *rdev);
-void radeon_agp_suspend(struct radeon_device *rdev);
-void radeon_agp_fini(struct radeon_device *rdev);
-
-
/*
* Writeback
*/
diff --git a/drivers/gpu/drm/radeon/radeon_agp.c b/drivers/gpu/drm/radeon/radeon_agp.c
deleted file mode 100644
index 0aca7bdf54c7..000000000000
--- a/drivers/gpu/drm/radeon/radeon_agp.c
+++ /dev/null
@@ -1,290 +0,0 @@
-/*
- * Copyright 2008 Red Hat Inc.
- * Copyright 2009 Jerome Glisse.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
- * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
- * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
- * OTHER DEALINGS IN THE SOFTWARE.
- *
- * Authors:
- * Dave Airlie
- * Jerome Glisse <glisse@freedesktop.org>
- */
-
-#include <linux/pci.h>
-
-#include <drm/drm_agpsupport.h>
-#include <drm/drm_device.h>
-#include <drm/radeon_drm.h>
-
-#include "radeon.h"
-
-#if IS_ENABLED(CONFIG_AGP)
-
-struct radeon_agpmode_quirk {
- u32 hostbridge_vendor;
- u32 hostbridge_device;
- u32 chip_vendor;
- u32 chip_device;
- u32 subsys_vendor;
- u32 subsys_device;
- u32 default_mode;
-};
-
-static struct radeon_agpmode_quirk radeon_agpmode_quirk_list[] = {
- /* Intel E7505 Memory Controller Hub / RV350 AR [Radeon 9600XT] Needs AGPMode 4 (deb #515326) */
- { PCI_VENDOR_ID_INTEL, 0x2550, PCI_VENDOR_ID_ATI, 0x4152, 0x1458, 0x4038, 4},
- /* Intel 82865G/PE/P DRAM Controller/Host-Hub / Mobility 9800 Needs AGPMode 4 (deb #462590) */
- { PCI_VENDOR_ID_INTEL, 0x2570, PCI_VENDOR_ID_ATI, 0x4a4e, PCI_VENDOR_ID_DELL, 0x5106, 4},
- /* Intel 82865G/PE/P DRAM Controller/Host-Hub / RV280 [Radeon 9200 SE] Needs AGPMode 4 (lp #300304) */
- { PCI_VENDOR_ID_INTEL, 0x2570, PCI_VENDOR_ID_ATI, 0x5964,
- 0x148c, 0x2073, 4},
- /* Intel 82855PM Processor to I/O Controller / Mobility M6 LY Needs AGPMode 1 (deb #467235) */
- { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4c59,
- PCI_VENDOR_ID_IBM, 0x052f, 1},
- /* Intel 82855PM host bridge / Mobility 9600 M10 RV350 Needs AGPMode 1 (lp #195051) */
- { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4e50,
- PCI_VENDOR_ID_IBM, 0x0550, 1},
- /* Intel 82855PM host bridge / RV250/M9 GL [Mobility FireGL 9000/Radeon 9000] needs AGPMode 1 (Thinkpad T40p) */
- { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4c66,
- PCI_VENDOR_ID_IBM, 0x054d, 1},
- /* Intel 82855PM host bridge / Mobility M7 needs AGPMode 1 */
- { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4c57,
- PCI_VENDOR_ID_IBM, 0x0530, 1},
- /* Intel 82855PM host bridge / FireGL Mobility T2 RV350 Needs AGPMode 2 (fdo #20647) */
- { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4e54,
- PCI_VENDOR_ID_IBM, 0x054f, 2},
- /* Intel 82855PM host bridge / Mobility M9+ / VaioPCG-V505DX Needs AGPMode 2 (fdo #17928) */
- { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x5c61,
- PCI_VENDOR_ID_SONY, 0x816b, 2},
- /* Intel 82855PM Processor to I/O Controller / Mobility M9+ Needs AGPMode 8 (phoronix forum) */
- { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x5c61,
- PCI_VENDOR_ID_SONY, 0x8195, 8},
- /* Intel 82830 830 Chipset Host Bridge / Mobility M6 LY Needs AGPMode 2 (fdo #17360)*/
- { PCI_VENDOR_ID_INTEL, 0x3575, PCI_VENDOR_ID_ATI, 0x4c59,
- PCI_VENDOR_ID_DELL, 0x00e3, 2},
- /* Intel 82852/82855 host bridge / Mobility FireGL 9000 RV250 Needs AGPMode 1 (lp #296617) */
- { PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4c66,
- PCI_VENDOR_ID_DELL, 0x0149, 1},
- /* Intel 82855PM host bridge / Mobility FireGL 9000 RV250 Needs AGPMode 1 for suspend/resume */
- { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4c66,
- PCI_VENDOR_ID_IBM, 0x0531, 1},
- /* Intel 82852/82855 host bridge / Mobility 9600 M10 RV350 Needs AGPMode 1 (deb #467460) */
- { PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4e50,
- 0x1025, 0x0061, 1},
- /* Intel 82852/82855 host bridge / Mobility 9600 M10 RV350 Needs AGPMode 1 (lp #203007) */
- { PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4e50,
- 0x1025, 0x0064, 1},
- /* Intel 82852/82855 host bridge / Mobility 9600 M10 RV350 Needs AGPMode 1 (lp #141551) */
- { PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4e50,
- PCI_VENDOR_ID_ASUSTEK, 0x1942, 1},
- /* Intel 82852/82855 host bridge / Mobility 9600/9700 Needs AGPMode 1 (deb #510208) */
- { PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4e50,
- 0x10cf, 0x127f, 1},
- /* ASRock K7VT4A+ AGP 8x / ATI Radeon 9250 AGP Needs AGPMode 4 (lp #133192) */
- { 0x1849, 0x3189, PCI_VENDOR_ID_ATI, 0x5960,
- 0x1787, 0x5960, 4},
- /* VIA K8M800 Host Bridge / RV280 [Radeon 9200 PRO] Needs AGPMode 4 (fdo #12544) */
- { PCI_VENDOR_ID_VIA, 0x0204, PCI_VENDOR_ID_ATI, 0x5960,
- 0x17af, 0x2020, 4},
- /* VIA KT880 Host Bridge / RV350 [Radeon 9550] Needs AGPMode 4 (fdo #19981) */
- { PCI_VENDOR_ID_VIA, 0x0269, PCI_VENDOR_ID_ATI, 0x4153,
- PCI_VENDOR_ID_ASUSTEK, 0x003c, 4},
- /* VIA VT8363 Host Bridge / R200 QL [Radeon 8500] Needs AGPMode 2 (lp #141551) */
- { PCI_VENDOR_ID_VIA, 0x0305, PCI_VENDOR_ID_ATI, 0x514c,
- PCI_VENDOR_ID_ATI, 0x013a, 2},
- /* VIA VT82C693A Host Bridge / RV280 [Radeon 9200 PRO] Needs AGPMode 2 (deb #515512) */
- { PCI_VENDOR_ID_VIA, 0x0691, PCI_VENDOR_ID_ATI, 0x5960,
- PCI_VENDOR_ID_ASUSTEK, 0x004c, 2},
- /* VIA VT82C693A Host Bridge / RV280 [Radeon 9200 PRO] Needs AGPMode 2 */
- { PCI_VENDOR_ID_VIA, 0x0691, PCI_VENDOR_ID_ATI, 0x5960,
- PCI_VENDOR_ID_ASUSTEK, 0x0054, 2},
- /* VIA VT8377 Host Bridge / R200 QM [Radeon 9100] Needs AGPMode 4 (deb #461144) */
- { PCI_VENDOR_ID_VIA, 0x3189, PCI_VENDOR_ID_ATI, 0x514d,
- 0x174b, 0x7149, 4},
- /* VIA VT8377 Host Bridge / RV280 [Radeon 9200 PRO] Needs AGPMode 4 (lp #312693) */
- { PCI_VENDOR_ID_VIA, 0x3189, PCI_VENDOR_ID_ATI, 0x5960,
- 0x1462, 0x0380, 4},
- /* VIA VT8377 Host Bridge / RV280 Needs AGPMode 4 (ati ML) */
- { PCI_VENDOR_ID_VIA, 0x3189, PCI_VENDOR_ID_ATI, 0x5964,
- 0x148c, 0x2073, 4},
- /* ATI Host Bridge / RV280 [M9+] Needs AGPMode 1 (phoronix forum) */
- { PCI_VENDOR_ID_ATI, 0xcbb2, PCI_VENDOR_ID_ATI, 0x5c61,
- PCI_VENDOR_ID_SONY, 0x8175, 1},
- { 0, 0, 0, 0, 0, 0, 0 },
-};
-#endif
-
-int radeon_agp_init(struct radeon_device *rdev)
-{
-#if IS_ENABLED(CONFIG_AGP)
- struct radeon_agpmode_quirk *p = radeon_agpmode_quirk_list;
- struct drm_agp_mode mode;
- struct drm_agp_info info;
- uint32_t agp_status;
- int default_mode;
- bool is_v3;
- int ret;
-
- /* Acquire AGP. */
- ret = drm_agp_acquire(rdev->ddev);
- if (ret) {
- DRM_ERROR("Unable to acquire AGP: %d\n", ret);
- return ret;
- }
-
- ret = drm_agp_info(rdev->ddev, &info);
- if (ret) {
- drm_agp_release(rdev->ddev);
- DRM_ERROR("Unable to get AGP info: %d\n", ret);
- return ret;
- }
-
- if (rdev->ddev->agp->agp_info.aper_size < 32) {
- drm_agp_release(rdev->ddev);
- dev_warn(rdev->dev, "AGP aperture too small (%zuM) "
- "need at least 32M, disabling AGP\n",
- rdev->ddev->agp->agp_info.aper_size);
- return -EINVAL;
- }
-
- mode.mode = info.mode;
- /* chips with the agp to pcie bridge don't have the AGP_STATUS register
- * Just use the whatever mode the host sets up.
- */
- if (rdev->family <= CHIP_RV350)
- agp_status = (RREG32(RADEON_AGP_STATUS) | RADEON_AGPv3_MODE) & mode.mode;
- else
- agp_status = mode.mode;
- is_v3 = !!(agp_status & RADEON_AGPv3_MODE);
-
- if (is_v3) {
- default_mode = (agp_status & RADEON_AGPv3_8X_MODE) ? 8 : 4;
- } else {
- if (agp_status & RADEON_AGP_4X_MODE) {
- default_mode = 4;
- } else if (agp_status & RADEON_AGP_2X_MODE) {
- default_mode = 2;
- } else {
- default_mode = 1;
- }
- }
-
- /* Apply AGPMode Quirks */
- while (p && p->chip_device != 0) {
- if (info.id_vendor == p->hostbridge_vendor &&
- info.id_device == p->hostbridge_device &&
- rdev->pdev->vendor == p->chip_vendor &&
- rdev->pdev->device == p->chip_device &&
- rdev->pdev->subsystem_vendor == p->subsys_vendor &&
- rdev->pdev->subsystem_device == p->subsys_device) {
- default_mode = p->default_mode;
- }
- ++p;
- }
-
- if (radeon_agpmode > 0) {
- if ((radeon_agpmode < (is_v3 ? 4 : 1)) ||
- (radeon_agpmode > (is_v3 ? 8 : 4)) ||
- (radeon_agpmode & (radeon_agpmode - 1))) {
- DRM_ERROR("Illegal AGP Mode: %d (valid %s), leaving at %d\n",
- radeon_agpmode, is_v3 ? "4, 8" : "1, 2, 4",
- default_mode);
- radeon_agpmode = default_mode;
- } else {
- DRM_INFO("AGP mode requested: %d\n", radeon_agpmode);
- }
- } else {
- radeon_agpmode = default_mode;
- }
-
- mode.mode &= ~RADEON_AGP_MODE_MASK;
- if (is_v3) {
- switch (radeon_agpmode) {
- case 8:
- mode.mode |= RADEON_AGPv3_8X_MODE;
- break;
- case 4:
- default:
- mode.mode |= RADEON_AGPv3_4X_MODE;
- break;
- }
- } else {
- switch (radeon_agpmode) {
- case 4:
- mode.mode |= RADEON_AGP_4X_MODE;
- break;
- case 2:
- mode.mode |= RADEON_AGP_2X_MODE;
- break;
- case 1:
- default:
- mode.mode |= RADEON_AGP_1X_MODE;
- break;
- }
- }
-
- mode.mode &= ~RADEON_AGP_FW_MODE; /* disable fw */
- ret = drm_agp_enable(rdev->ddev, mode);
- if (ret) {
- DRM_ERROR("Unable to enable AGP (mode = 0x%lx)\n", mode.mode);
- drm_agp_release(rdev->ddev);
- return ret;
- }
-
- rdev->mc.agp_base = rdev->ddev->agp->agp_info.aper_base;
- rdev->mc.gtt_size = rdev->ddev->agp->agp_info.aper_size << 20;
- rdev->mc.gtt_start = rdev->mc.agp_base;
- rdev->mc.gtt_end = rdev->mc.gtt_start + rdev->mc.gtt_size - 1;
- dev_info(rdev->dev, "GTT: %lluM 0x%08llX - 0x%08llX\n",
- rdev->mc.gtt_size >> 20, rdev->mc.gtt_start, rdev->mc.gtt_end);
-
- /* workaround some hw issues */
- if (rdev->family < CHIP_R200) {
- WREG32(RADEON_AGP_CNTL, RREG32(RADEON_AGP_CNTL) | 0x000e0000);
- }
- return 0;
-#else
- return 0;
-#endif
-}
-
-void radeon_agp_resume(struct radeon_device *rdev)
-{
-#if IS_ENABLED(CONFIG_AGP)
- int r;
- if (rdev->flags & RADEON_IS_AGP) {
- r = radeon_agp_init(rdev);
- if (r)
- dev_warn(rdev->dev, "radeon AGP reinit failed\n");
- }
-#endif
-}
-
-void radeon_agp_fini(struct radeon_device *rdev)
-{
-#if IS_ENABLED(CONFIG_AGP)
- if (rdev->ddev->agp && rdev->ddev->agp->acquired) {
- drm_agp_release(rdev->ddev);
- }
-#endif
-}
-
-void radeon_agp_suspend(struct radeon_device *rdev)
-{
- radeon_agp_fini(rdev);
-}
diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c
index 266e3cbbd09b..12e5c5d81c47 100644
--- a/drivers/gpu/drm/radeon/radeon_device.c
+++ b/drivers/gpu/drm/radeon/radeon_device.c
@@ -1145,22 +1145,6 @@ static void radeon_check_arguments(struct radeon_device *rdev)
}
rdev->mc.gtt_size = (uint64_t)radeon_gart_size << 20;
- /* AGP mode can only be -1, 1, 2, 4, 8 */
- switch (radeon_agpmode) {
- case -1:
- case 0:
- case 1:
- case 2:
- case 4:
- case 8:
- break;
- default:
- dev_warn(rdev->dev, "invalid AGP mode %d (valid mode: "
- "-1, 0, 1, 2, 4, 8)\n", radeon_agpmode);
- radeon_agpmode = 0;
- break;
- }
-
if (!radeon_check_pot_argument(radeon_vm_size)) {
dev_warn(rdev->dev, "VM size (%d) must be a power of 2\n",
radeon_vm_size);
@@ -1348,9 +1332,8 @@ int radeon_device_init(struct radeon_device *rdev,
rdev->flags &= ~RADEON_IS_AGP;
}
- if (rdev->flags & RADEON_IS_AGP && radeon_agpmode == -1) {
+ if (rdev->flags & RADEON_IS_AGP)
radeon_agp_disable(rdev);
- }
/* Set the internal MC address mask
* This is the max address of the GPU's
@@ -1636,8 +1619,6 @@ int radeon_suspend_kms(struct drm_device *dev, bool suspend,
*/
radeon_bo_evict_vram(rdev);
- radeon_agp_suspend(rdev);
-
pci_save_state(dev->pdev);
if (freeze && rdev->family >= CHIP_CEDAR && !(rdev->flags & RADEON_IS_IGP)) {
rdev->asic->asic_reset(rdev, true);
@@ -1687,8 +1668,6 @@ int radeon_resume_kms(struct drm_device *dev, bool resume, bool fbcon)
return -1;
}
}
- /* resume AGP if in use */
- radeon_agp_resume(rdev);
radeon_resume(rdev);
r = radeon_ib_ring_tests(rdev);
diff --git a/drivers/gpu/drm/radeon/radeon_drv.c b/drivers/gpu/drm/radeon/radeon_drv.c
index bbb0883e8ce6..62a5dfaf990b 100644
--- a/drivers/gpu/drm/radeon/radeon_drv.c
+++ b/drivers/gpu/drm/radeon/radeon_drv.c
@@ -171,12 +171,6 @@ int radeon_no_wb;
int radeon_modeset = -1;
int radeon_dynclks = -1;
int radeon_r4xx_atom = 0;
-#ifdef __powerpc__
-/* Default to PCI on PowerPC (fdo #95017) */
-int radeon_agpmode = -1;
-#else
-int radeon_agpmode = 0;
-#endif
int radeon_vram_limit = 0;
int radeon_gart_size = -1; /* auto */
int radeon_benchmarking = 0;
@@ -220,9 +214,6 @@ module_param_named(r4xx_atom, radeon_r4xx_atom, int, 0444);
MODULE_PARM_DESC(vramlimit, "Restrict VRAM for testing, in megabytes");
module_param_named(vramlimit, radeon_vram_limit, int, 0600);
-MODULE_PARM_DESC(agpmode, "AGP Mode (-1 == PCI)");
-module_param_named(agpmode, radeon_agpmode, int, 0444);
-
MODULE_PARM_DESC(gartsize, "Size of PCIE/IGP gart to setup in megabytes (32, 64, etc., -1 = auto)");
module_param_named(gartsize, radeon_gart_size, int, 0600);
diff --git a/drivers/gpu/drm/radeon/radeon_ttm.c b/drivers/gpu/drm/radeon/radeon_ttm.c
index 5d50c9edbe80..21bb3706c13c 100644
--- a/drivers/gpu/drm/radeon/radeon_ttm.c
+++ b/drivers/gpu/drm/radeon/radeon_ttm.c
@@ -86,20 +86,6 @@ static int radeon_init_mem_type(struct ttm_bo_device *bdev, uint32_t type,
man->available_caching = TTM_PL_MASK_CACHING;
man->default_caching = TTM_PL_FLAG_CACHED;
man->flags = TTM_MEMTYPE_FLAG_MAPPABLE | TTM_MEMTYPE_FLAG_CMA;
-#if IS_ENABLED(CONFIG_AGP)
- if (rdev->flags & RADEON_IS_AGP) {
- if (!rdev->ddev->agp) {
- DRM_ERROR("AGP is not enabled for memory type %u\n",
- (unsigned)type);
- return -EINVAL;
- }
- if (!rdev->ddev->agp->cant_use_aperture)
- man->flags = TTM_MEMTYPE_FLAG_MAPPABLE;
- man->available_caching = TTM_PL_FLAG_UNCACHED |
- TTM_PL_FLAG_WC;
- man->default_caching = TTM_PL_FLAG_WC;
- }
-#endif
break;
case TTM_PL_VRAM:
/* "On-card" video ram */
@@ -411,14 +397,6 @@ static int radeon_ttm_io_mem_reserve(struct ttm_bo_device *bdev, struct ttm_mem_
/* system memory */
return 0;
case TTM_PL_TT:
-#if IS_ENABLED(CONFIG_AGP)
- if (rdev->flags & RADEON_IS_AGP) {
- /* RADEON_IS_AGP is set only if AGP is active */
- mem->bus.offset = mem->start << PAGE_SHIFT;
- mem->bus.base = rdev->mc.agp_base;
- mem->bus.is_iomem = !rdev->ddev->agp->cant_use_aperture;
- }
-#endif
break;
case TTM_PL_VRAM:
mem->bus.offset = mem->start << PAGE_SHIFT;
@@ -631,12 +609,6 @@ static struct ttm_tt *radeon_ttm_tt_create(struct ttm_buffer_object *bo,
struct radeon_ttm_tt *gtt;
rdev = radeon_get_rdev(bo->bdev);
-#if IS_ENABLED(CONFIG_AGP)
- if (rdev->flags & RADEON_IS_AGP) {
- return ttm_agp_tt_create(bo, rdev->ddev->agp->bridge,
- page_flags);
- }
-#endif
gtt = kzalloc(sizeof(struct radeon_ttm_tt), GFP_KERNEL);
if (gtt == NULL) {
@@ -683,11 +655,6 @@ static int radeon_ttm_tt_populate(struct ttm_tt *ttm,
}
rdev = radeon_get_rdev(ttm->bdev);
-#if IS_ENABLED(CONFIG_AGP)
- if (rdev->flags & RADEON_IS_AGP) {
- return ttm_agp_tt_populate(ttm, ctx);
- }
-#endif
#ifdef CONFIG_SWIOTLB
if (rdev->need_swiotlb && swiotlb_nr_tbl()) {
@@ -714,12 +681,6 @@ static void radeon_ttm_tt_unpopulate(struct ttm_tt *ttm)
return;
rdev = radeon_get_rdev(ttm->bdev);
-#if IS_ENABLED(CONFIG_AGP)
- if (rdev->flags & RADEON_IS_AGP) {
- ttm_agp_tt_unpopulate(ttm);
- return;
- }
-#endif
#ifdef CONFIG_SWIOTLB
if (rdev->need_swiotlb && swiotlb_nr_tbl()) {
diff --git a/drivers/gpu/drm/radeon/rv515.c b/drivers/gpu/drm/radeon/rv515.c
index 147e5cf8348d..8a2f16320869 100644
--- a/drivers/gpu/drm/radeon/rv515.c
+++ b/drivers/gpu/drm/radeon/rv515.c
@@ -622,7 +622,6 @@ void rv515_fini(struct radeon_device *rdev)
radeon_ib_pool_fini(rdev);
radeon_gem_fini(rdev);
rv370_pcie_gart_fini(rdev);
- radeon_agp_fini(rdev);
radeon_irq_kms_fini(rdev);
radeon_fence_driver_fini(rdev);
radeon_bo_fini(rdev);
@@ -667,13 +666,6 @@ int rv515_init(struct radeon_device *rdev)
return -EINVAL;
/* Initialize clocks */
radeon_get_clock_info(rdev->ddev);
- /* initialize AGP */
- if (rdev->flags & RADEON_IS_AGP) {
- r = radeon_agp_init(rdev);
- if (r) {
- radeon_agp_disable(rdev);
- }
- }
/* initialize memory controller */
rv515_mc_init(rdev);
rv515_debugfs(rdev);
@@ -703,7 +695,6 @@ int rv515_init(struct radeon_device *rdev)
radeon_ib_pool_fini(rdev);
radeon_irq_kms_fini(rdev);
rv370_pcie_gart_fini(rdev);
- radeon_agp_fini(rdev);
rdev->accel_working = false;
}
return 0;
diff --git a/drivers/gpu/drm/radeon/rv770.c b/drivers/gpu/drm/radeon/rv770.c
index 21f653ae1e1b..20bf54266f24 100644
--- a/drivers/gpu/drm/radeon/rv770.c
+++ b/drivers/gpu/drm/radeon/rv770.c
@@ -1943,12 +1943,6 @@ int rv770_init(struct radeon_device *rdev)
r = radeon_fence_driver_init(rdev);
if (r)
return r;
- /* initialize AGP */
- if (rdev->flags & RADEON_IS_AGP) {
- r = radeon_agp_init(rdev);
- if (r)
- radeon_agp_disable(rdev);
- }
r = rv770_mc_init(rdev);
if (r)
return r;
@@ -2015,7 +2009,6 @@ void rv770_fini(struct radeon_device *rdev)
r600_vram_scratch_fini(rdev);
radeon_gem_fini(rdev);
radeon_fence_driver_fini(rdev);
- radeon_agp_fini(rdev);
radeon_bo_fini(rdev);
radeon_atombios_fini(rdev);
kfree(rdev->bios);
--
2.17.1
_______________________________________________
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^ permalink raw reply related [flat|nested] 81+ messages in thread
* [PATCH 1/3] drm/radeon: remove AGP support
@ 2020-05-11 17:17 ` Christian König
0 siblings, 0 replies; 81+ messages in thread
From: Christian König @ 2020-05-11 17:17 UTC (permalink / raw)
To: dri-devel, amd-gfx, nouveau
AGP is deprecated for 10+ years now and not used any more on modern hardware.
Old hardware should continue to work in PCI mode.
Signed-off-by: Christian König <christian.koenig@amd.com>
---
drivers/gpu/drm/radeon/Makefile | 4 +-
drivers/gpu/drm/radeon/evergreen.c | 7 -
drivers/gpu/drm/radeon/r100.c | 10 +-
drivers/gpu/drm/radeon/r300.c | 9 -
drivers/gpu/drm/radeon/r420.c | 9 -
drivers/gpu/drm/radeon/r520.c | 8 -
drivers/gpu/drm/radeon/r600.c | 6 -
drivers/gpu/drm/radeon/radeon.h | 11 -
drivers/gpu/drm/radeon/radeon_agp.c | 290 -------------------------
drivers/gpu/drm/radeon/radeon_device.c | 23 +-
drivers/gpu/drm/radeon/radeon_drv.c | 9 -
drivers/gpu/drm/radeon/radeon_ttm.c | 39 ----
drivers/gpu/drm/radeon/rv515.c | 9 -
drivers/gpu/drm/radeon/rv770.c | 7 -
14 files changed, 4 insertions(+), 437 deletions(-)
delete mode 100644 drivers/gpu/drm/radeon/radeon_agp.c
diff --git a/drivers/gpu/drm/radeon/Makefile b/drivers/gpu/drm/radeon/Makefile
index c693b2ca0329..77429cfd303e 100644
--- a/drivers/gpu/drm/radeon/Makefile
+++ b/drivers/gpu/drm/radeon/Makefile
@@ -61,8 +61,8 @@ radeon-y := radeon_drv.o
# add KMS driver
radeon-y += radeon_device.o radeon_asic.o radeon_kms.o \
- radeon_atombios.o radeon_agp.o atombios_crtc.o radeon_combios.o \
- atom.o radeon_fence.o radeon_ttm.o radeon_object.o radeon_gart.o \
+ radeon_atombios.o atombios_crtc.o radeon_combios.o atom.o \
+ radeon_fence.o radeon_ttm.o radeon_object.o radeon_gart.o \
radeon_legacy_crtc.o radeon_legacy_encoders.o radeon_connectors.o \
radeon_encoders.o radeon_display.o radeon_cursor.o radeon_i2c.o \
radeon_clocks.o radeon_fb.o radeon_gem.o radeon_ring.o radeon_irq_kms.o \
diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c
index 14d90dc376e7..66b3d9a2c6dd 100644
--- a/drivers/gpu/drm/radeon/evergreen.c
+++ b/drivers/gpu/drm/radeon/evergreen.c
@@ -5216,12 +5216,6 @@ int evergreen_init(struct radeon_device *rdev)
r = radeon_fence_driver_init(rdev);
if (r)
return r;
- /* initialize AGP */
- if (rdev->flags & RADEON_IS_AGP) {
- r = radeon_agp_init(rdev);
- if (r)
- radeon_agp_disable(rdev);
- }
/* initialize memory controller */
r = evergreen_mc_init(rdev);
if (r)
@@ -5315,7 +5309,6 @@ void evergreen_fini(struct radeon_device *rdev)
r600_vram_scratch_fini(rdev);
radeon_gem_fini(rdev);
radeon_fence_driver_fini(rdev);
- radeon_agp_fini(rdev);
radeon_bo_fini(rdev);
radeon_atombios_fini(rdev);
kfree(rdev->bios);
diff --git a/drivers/gpu/drm/radeon/r100.c b/drivers/gpu/drm/radeon/r100.c
index 24c8db673931..320b1b40a30a 100644
--- a/drivers/gpu/drm/radeon/r100.c
+++ b/drivers/gpu/drm/radeon/r100.c
@@ -3382,7 +3382,7 @@ void r100_bandwidth_update(struct radeon_device *rdev)
if (rdev->flags & RADEON_IS_AGP) {
fixed20_12 agpmode_ff;
- agpmode_ff.full = dfixed_const(radeon_agpmode);
+ agpmode_ff.full = dfixed_const(0);
temp_ff.full = dfixed_const_666(16);
sclk_eff_ff.full -= dfixed_mul(agpmode_ff, temp_ff);
}
@@ -3992,7 +3992,6 @@ void r100_fini(struct radeon_device *rdev)
radeon_gem_fini(rdev);
if (rdev->flags & RADEON_IS_PCI)
r100_pci_gart_fini(rdev);
- radeon_agp_fini(rdev);
radeon_irq_kms_fini(rdev);
radeon_fence_driver_fini(rdev);
radeon_bo_fini(rdev);
@@ -4068,13 +4067,6 @@ int r100_init(struct radeon_device *rdev)
r100_errata(rdev);
/* Initialize clocks */
radeon_get_clock_info(rdev->ddev);
- /* initialize AGP */
- if (rdev->flags & RADEON_IS_AGP) {
- r = radeon_agp_init(rdev);
- if (r) {
- radeon_agp_disable(rdev);
- }
- }
/* initialize VRAM */
r100_mc_init(rdev);
/* Fence driver */
diff --git a/drivers/gpu/drm/radeon/r300.c b/drivers/gpu/drm/radeon/r300.c
index 3b7ead5be5bf..afd688629cf9 100644
--- a/drivers/gpu/drm/radeon/r300.c
+++ b/drivers/gpu/drm/radeon/r300.c
@@ -1498,7 +1498,6 @@ void r300_fini(struct radeon_device *rdev)
rv370_pcie_gart_fini(rdev);
if (rdev->flags & RADEON_IS_PCI)
r100_pci_gart_fini(rdev);
- radeon_agp_fini(rdev);
radeon_irq_kms_fini(rdev);
radeon_fence_driver_fini(rdev);
radeon_bo_fini(rdev);
@@ -1547,13 +1546,6 @@ int r300_init(struct radeon_device *rdev)
r300_errata(rdev);
/* Initialize clocks */
radeon_get_clock_info(rdev->ddev);
- /* initialize AGP */
- if (rdev->flags & RADEON_IS_AGP) {
- r = radeon_agp_init(rdev);
- if (r) {
- radeon_agp_disable(rdev);
- }
- }
/* initialize memory controller */
r300_mc_init(rdev);
/* Fence driver */
@@ -1592,7 +1584,6 @@ int r300_init(struct radeon_device *rdev)
rv370_pcie_gart_fini(rdev);
if (rdev->flags & RADEON_IS_PCI)
r100_pci_gart_fini(rdev);
- radeon_agp_fini(rdev);
rdev->accel_working = false;
}
return 0;
diff --git a/drivers/gpu/drm/radeon/r420.c b/drivers/gpu/drm/radeon/r420.c
index 1d4c04e0a449..3cb337dacd56 100644
--- a/drivers/gpu/drm/radeon/r420.c
+++ b/drivers/gpu/drm/radeon/r420.c
@@ -366,7 +366,6 @@ void r420_fini(struct radeon_device *rdev)
rv370_pcie_gart_fini(rdev);
if (rdev->flags & RADEON_IS_PCI)
r100_pci_gart_fini(rdev);
- radeon_agp_fini(rdev);
radeon_irq_kms_fini(rdev);
radeon_fence_driver_fini(rdev);
radeon_bo_fini(rdev);
@@ -419,13 +418,6 @@ int r420_init(struct radeon_device *rdev)
/* Initialize clocks */
radeon_get_clock_info(rdev->ddev);
- /* initialize AGP */
- if (rdev->flags & RADEON_IS_AGP) {
- r = radeon_agp_init(rdev);
- if (r) {
- radeon_agp_disable(rdev);
- }
- }
/* initialize memory controller */
r300_mc_init(rdev);
r420_debugfs(rdev);
@@ -470,7 +462,6 @@ int r420_init(struct radeon_device *rdev)
rv370_pcie_gart_fini(rdev);
if (rdev->flags & RADEON_IS_PCI)
r100_pci_gart_fini(rdev);
- radeon_agp_fini(rdev);
rdev->accel_working = false;
}
return 0;
diff --git a/drivers/gpu/drm/radeon/r520.c b/drivers/gpu/drm/radeon/r520.c
index fc78e64ae727..76ac87d72406 100644
--- a/drivers/gpu/drm/radeon/r520.c
+++ b/drivers/gpu/drm/radeon/r520.c
@@ -288,13 +288,6 @@ int r520_init(struct radeon_device *rdev)
}
/* Initialize clocks */
radeon_get_clock_info(rdev->ddev);
- /* initialize AGP */
- if (rdev->flags & RADEON_IS_AGP) {
- r = radeon_agp_init(rdev);
- if (r) {
- radeon_agp_disable(rdev);
- }
- }
/* initialize memory controller */
r520_mc_init(rdev);
rv515_debugfs(rdev);
@@ -324,7 +317,6 @@ int r520_init(struct radeon_device *rdev)
radeon_ib_pool_fini(rdev);
radeon_irq_kms_fini(rdev);
rv370_pcie_gart_fini(rdev);
- radeon_agp_fini(rdev);
rdev->accel_working = false;
}
return 0;
diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c
index d9a33ca768f3..4a5ac15893c2 100644
--- a/drivers/gpu/drm/radeon/r600.c
+++ b/drivers/gpu/drm/radeon/r600.c
@@ -3286,11 +3286,6 @@ int r600_init(struct radeon_device *rdev)
r = radeon_fence_driver_init(rdev);
if (r)
return r;
- if (rdev->flags & RADEON_IS_AGP) {
- r = radeon_agp_init(rdev);
- if (r)
- radeon_agp_disable(rdev);
- }
r = r600_mc_init(rdev);
if (r)
return r;
@@ -3353,7 +3348,6 @@ void r600_fini(struct radeon_device *rdev)
radeon_irq_kms_fini(rdev);
r600_pcie_gart_fini(rdev);
r600_vram_scratch_fini(rdev);
- radeon_agp_fini(rdev);
radeon_gem_fini(rdev);
radeon_fence_driver_fini(rdev);
radeon_bo_fini(rdev);
diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h
index 30e32adc1fc6..377e1403b134 100644
--- a/drivers/gpu/drm/radeon/radeon.h
+++ b/drivers/gpu/drm/radeon/radeon.h
@@ -91,7 +91,6 @@ extern int radeon_no_wb;
extern int radeon_modeset;
extern int radeon_dynclks;
extern int radeon_r4xx_atom;
-extern int radeon_agpmode;
extern int radeon_vram_limit;
extern int radeon_gart_size;
extern int radeon_benchmarking;
@@ -1116,16 +1115,6 @@ typedef int (*radeon_packet0_check_t)(struct radeon_cs_parser *p,
typedef int (*radeon_packet3_check_t)(struct radeon_cs_parser *p,
struct radeon_cs_packet *pkt);
-
-/*
- * AGP
- */
-int radeon_agp_init(struct radeon_device *rdev);
-void radeon_agp_resume(struct radeon_device *rdev);
-void radeon_agp_suspend(struct radeon_device *rdev);
-void radeon_agp_fini(struct radeon_device *rdev);
-
-
/*
* Writeback
*/
diff --git a/drivers/gpu/drm/radeon/radeon_agp.c b/drivers/gpu/drm/radeon/radeon_agp.c
deleted file mode 100644
index 0aca7bdf54c7..000000000000
--- a/drivers/gpu/drm/radeon/radeon_agp.c
+++ /dev/null
@@ -1,290 +0,0 @@
-/*
- * Copyright 2008 Red Hat Inc.
- * Copyright 2009 Jerome Glisse.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
- * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
- * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
- * OTHER DEALINGS IN THE SOFTWARE.
- *
- * Authors:
- * Dave Airlie
- * Jerome Glisse <glisse@freedesktop.org>
- */
-
-#include <linux/pci.h>
-
-#include <drm/drm_agpsupport.h>
-#include <drm/drm_device.h>
-#include <drm/radeon_drm.h>
-
-#include "radeon.h"
-
-#if IS_ENABLED(CONFIG_AGP)
-
-struct radeon_agpmode_quirk {
- u32 hostbridge_vendor;
- u32 hostbridge_device;
- u32 chip_vendor;
- u32 chip_device;
- u32 subsys_vendor;
- u32 subsys_device;
- u32 default_mode;
-};
-
-static struct radeon_agpmode_quirk radeon_agpmode_quirk_list[] = {
- /* Intel E7505 Memory Controller Hub / RV350 AR [Radeon 9600XT] Needs AGPMode 4 (deb #515326) */
- { PCI_VENDOR_ID_INTEL, 0x2550, PCI_VENDOR_ID_ATI, 0x4152, 0x1458, 0x4038, 4},
- /* Intel 82865G/PE/P DRAM Controller/Host-Hub / Mobility 9800 Needs AGPMode 4 (deb #462590) */
- { PCI_VENDOR_ID_INTEL, 0x2570, PCI_VENDOR_ID_ATI, 0x4a4e, PCI_VENDOR_ID_DELL, 0x5106, 4},
- /* Intel 82865G/PE/P DRAM Controller/Host-Hub / RV280 [Radeon 9200 SE] Needs AGPMode 4 (lp #300304) */
- { PCI_VENDOR_ID_INTEL, 0x2570, PCI_VENDOR_ID_ATI, 0x5964,
- 0x148c, 0x2073, 4},
- /* Intel 82855PM Processor to I/O Controller / Mobility M6 LY Needs AGPMode 1 (deb #467235) */
- { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4c59,
- PCI_VENDOR_ID_IBM, 0x052f, 1},
- /* Intel 82855PM host bridge / Mobility 9600 M10 RV350 Needs AGPMode 1 (lp #195051) */
- { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4e50,
- PCI_VENDOR_ID_IBM, 0x0550, 1},
- /* Intel 82855PM host bridge / RV250/M9 GL [Mobility FireGL 9000/Radeon 9000] needs AGPMode 1 (Thinkpad T40p) */
- { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4c66,
- PCI_VENDOR_ID_IBM, 0x054d, 1},
- /* Intel 82855PM host bridge / Mobility M7 needs AGPMode 1 */
- { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4c57,
- PCI_VENDOR_ID_IBM, 0x0530, 1},
- /* Intel 82855PM host bridge / FireGL Mobility T2 RV350 Needs AGPMode 2 (fdo #20647) */
- { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4e54,
- PCI_VENDOR_ID_IBM, 0x054f, 2},
- /* Intel 82855PM host bridge / Mobility M9+ / VaioPCG-V505DX Needs AGPMode 2 (fdo #17928) */
- { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x5c61,
- PCI_VENDOR_ID_SONY, 0x816b, 2},
- /* Intel 82855PM Processor to I/O Controller / Mobility M9+ Needs AGPMode 8 (phoronix forum) */
- { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x5c61,
- PCI_VENDOR_ID_SONY, 0x8195, 8},
- /* Intel 82830 830 Chipset Host Bridge / Mobility M6 LY Needs AGPMode 2 (fdo #17360)*/
- { PCI_VENDOR_ID_INTEL, 0x3575, PCI_VENDOR_ID_ATI, 0x4c59,
- PCI_VENDOR_ID_DELL, 0x00e3, 2},
- /* Intel 82852/82855 host bridge / Mobility FireGL 9000 RV250 Needs AGPMode 1 (lp #296617) */
- { PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4c66,
- PCI_VENDOR_ID_DELL, 0x0149, 1},
- /* Intel 82855PM host bridge / Mobility FireGL 9000 RV250 Needs AGPMode 1 for suspend/resume */
- { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4c66,
- PCI_VENDOR_ID_IBM, 0x0531, 1},
- /* Intel 82852/82855 host bridge / Mobility 9600 M10 RV350 Needs AGPMode 1 (deb #467460) */
- { PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4e50,
- 0x1025, 0x0061, 1},
- /* Intel 82852/82855 host bridge / Mobility 9600 M10 RV350 Needs AGPMode 1 (lp #203007) */
- { PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4e50,
- 0x1025, 0x0064, 1},
- /* Intel 82852/82855 host bridge / Mobility 9600 M10 RV350 Needs AGPMode 1 (lp #141551) */
- { PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4e50,
- PCI_VENDOR_ID_ASUSTEK, 0x1942, 1},
- /* Intel 82852/82855 host bridge / Mobility 9600/9700 Needs AGPMode 1 (deb #510208) */
- { PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4e50,
- 0x10cf, 0x127f, 1},
- /* ASRock K7VT4A+ AGP 8x / ATI Radeon 9250 AGP Needs AGPMode 4 (lp #133192) */
- { 0x1849, 0x3189, PCI_VENDOR_ID_ATI, 0x5960,
- 0x1787, 0x5960, 4},
- /* VIA K8M800 Host Bridge / RV280 [Radeon 9200 PRO] Needs AGPMode 4 (fdo #12544) */
- { PCI_VENDOR_ID_VIA, 0x0204, PCI_VENDOR_ID_ATI, 0x5960,
- 0x17af, 0x2020, 4},
- /* VIA KT880 Host Bridge / RV350 [Radeon 9550] Needs AGPMode 4 (fdo #19981) */
- { PCI_VENDOR_ID_VIA, 0x0269, PCI_VENDOR_ID_ATI, 0x4153,
- PCI_VENDOR_ID_ASUSTEK, 0x003c, 4},
- /* VIA VT8363 Host Bridge / R200 QL [Radeon 8500] Needs AGPMode 2 (lp #141551) */
- { PCI_VENDOR_ID_VIA, 0x0305, PCI_VENDOR_ID_ATI, 0x514c,
- PCI_VENDOR_ID_ATI, 0x013a, 2},
- /* VIA VT82C693A Host Bridge / RV280 [Radeon 9200 PRO] Needs AGPMode 2 (deb #515512) */
- { PCI_VENDOR_ID_VIA, 0x0691, PCI_VENDOR_ID_ATI, 0x5960,
- PCI_VENDOR_ID_ASUSTEK, 0x004c, 2},
- /* VIA VT82C693A Host Bridge / RV280 [Radeon 9200 PRO] Needs AGPMode 2 */
- { PCI_VENDOR_ID_VIA, 0x0691, PCI_VENDOR_ID_ATI, 0x5960,
- PCI_VENDOR_ID_ASUSTEK, 0x0054, 2},
- /* VIA VT8377 Host Bridge / R200 QM [Radeon 9100] Needs AGPMode 4 (deb #461144) */
- { PCI_VENDOR_ID_VIA, 0x3189, PCI_VENDOR_ID_ATI, 0x514d,
- 0x174b, 0x7149, 4},
- /* VIA VT8377 Host Bridge / RV280 [Radeon 9200 PRO] Needs AGPMode 4 (lp #312693) */
- { PCI_VENDOR_ID_VIA, 0x3189, PCI_VENDOR_ID_ATI, 0x5960,
- 0x1462, 0x0380, 4},
- /* VIA VT8377 Host Bridge / RV280 Needs AGPMode 4 (ati ML) */
- { PCI_VENDOR_ID_VIA, 0x3189, PCI_VENDOR_ID_ATI, 0x5964,
- 0x148c, 0x2073, 4},
- /* ATI Host Bridge / RV280 [M9+] Needs AGPMode 1 (phoronix forum) */
- { PCI_VENDOR_ID_ATI, 0xcbb2, PCI_VENDOR_ID_ATI, 0x5c61,
- PCI_VENDOR_ID_SONY, 0x8175, 1},
- { 0, 0, 0, 0, 0, 0, 0 },
-};
-#endif
-
-int radeon_agp_init(struct radeon_device *rdev)
-{
-#if IS_ENABLED(CONFIG_AGP)
- struct radeon_agpmode_quirk *p = radeon_agpmode_quirk_list;
- struct drm_agp_mode mode;
- struct drm_agp_info info;
- uint32_t agp_status;
- int default_mode;
- bool is_v3;
- int ret;
-
- /* Acquire AGP. */
- ret = drm_agp_acquire(rdev->ddev);
- if (ret) {
- DRM_ERROR("Unable to acquire AGP: %d\n", ret);
- return ret;
- }
-
- ret = drm_agp_info(rdev->ddev, &info);
- if (ret) {
- drm_agp_release(rdev->ddev);
- DRM_ERROR("Unable to get AGP info: %d\n", ret);
- return ret;
- }
-
- if (rdev->ddev->agp->agp_info.aper_size < 32) {
- drm_agp_release(rdev->ddev);
- dev_warn(rdev->dev, "AGP aperture too small (%zuM) "
- "need at least 32M, disabling AGP\n",
- rdev->ddev->agp->agp_info.aper_size);
- return -EINVAL;
- }
-
- mode.mode = info.mode;
- /* chips with the agp to pcie bridge don't have the AGP_STATUS register
- * Just use the whatever mode the host sets up.
- */
- if (rdev->family <= CHIP_RV350)
- agp_status = (RREG32(RADEON_AGP_STATUS) | RADEON_AGPv3_MODE) & mode.mode;
- else
- agp_status = mode.mode;
- is_v3 = !!(agp_status & RADEON_AGPv3_MODE);
-
- if (is_v3) {
- default_mode = (agp_status & RADEON_AGPv3_8X_MODE) ? 8 : 4;
- } else {
- if (agp_status & RADEON_AGP_4X_MODE) {
- default_mode = 4;
- } else if (agp_status & RADEON_AGP_2X_MODE) {
- default_mode = 2;
- } else {
- default_mode = 1;
- }
- }
-
- /* Apply AGPMode Quirks */
- while (p && p->chip_device != 0) {
- if (info.id_vendor == p->hostbridge_vendor &&
- info.id_device == p->hostbridge_device &&
- rdev->pdev->vendor == p->chip_vendor &&
- rdev->pdev->device == p->chip_device &&
- rdev->pdev->subsystem_vendor == p->subsys_vendor &&
- rdev->pdev->subsystem_device == p->subsys_device) {
- default_mode = p->default_mode;
- }
- ++p;
- }
-
- if (radeon_agpmode > 0) {
- if ((radeon_agpmode < (is_v3 ? 4 : 1)) ||
- (radeon_agpmode > (is_v3 ? 8 : 4)) ||
- (radeon_agpmode & (radeon_agpmode - 1))) {
- DRM_ERROR("Illegal AGP Mode: %d (valid %s), leaving at %d\n",
- radeon_agpmode, is_v3 ? "4, 8" : "1, 2, 4",
- default_mode);
- radeon_agpmode = default_mode;
- } else {
- DRM_INFO("AGP mode requested: %d\n", radeon_agpmode);
- }
- } else {
- radeon_agpmode = default_mode;
- }
-
- mode.mode &= ~RADEON_AGP_MODE_MASK;
- if (is_v3) {
- switch (radeon_agpmode) {
- case 8:
- mode.mode |= RADEON_AGPv3_8X_MODE;
- break;
- case 4:
- default:
- mode.mode |= RADEON_AGPv3_4X_MODE;
- break;
- }
- } else {
- switch (radeon_agpmode) {
- case 4:
- mode.mode |= RADEON_AGP_4X_MODE;
- break;
- case 2:
- mode.mode |= RADEON_AGP_2X_MODE;
- break;
- case 1:
- default:
- mode.mode |= RADEON_AGP_1X_MODE;
- break;
- }
- }
-
- mode.mode &= ~RADEON_AGP_FW_MODE; /* disable fw */
- ret = drm_agp_enable(rdev->ddev, mode);
- if (ret) {
- DRM_ERROR("Unable to enable AGP (mode = 0x%lx)\n", mode.mode);
- drm_agp_release(rdev->ddev);
- return ret;
- }
-
- rdev->mc.agp_base = rdev->ddev->agp->agp_info.aper_base;
- rdev->mc.gtt_size = rdev->ddev->agp->agp_info.aper_size << 20;
- rdev->mc.gtt_start = rdev->mc.agp_base;
- rdev->mc.gtt_end = rdev->mc.gtt_start + rdev->mc.gtt_size - 1;
- dev_info(rdev->dev, "GTT: %lluM 0x%08llX - 0x%08llX\n",
- rdev->mc.gtt_size >> 20, rdev->mc.gtt_start, rdev->mc.gtt_end);
-
- /* workaround some hw issues */
- if (rdev->family < CHIP_R200) {
- WREG32(RADEON_AGP_CNTL, RREG32(RADEON_AGP_CNTL) | 0x000e0000);
- }
- return 0;
-#else
- return 0;
-#endif
-}
-
-void radeon_agp_resume(struct radeon_device *rdev)
-{
-#if IS_ENABLED(CONFIG_AGP)
- int r;
- if (rdev->flags & RADEON_IS_AGP) {
- r = radeon_agp_init(rdev);
- if (r)
- dev_warn(rdev->dev, "radeon AGP reinit failed\n");
- }
-#endif
-}
-
-void radeon_agp_fini(struct radeon_device *rdev)
-{
-#if IS_ENABLED(CONFIG_AGP)
- if (rdev->ddev->agp && rdev->ddev->agp->acquired) {
- drm_agp_release(rdev->ddev);
- }
-#endif
-}
-
-void radeon_agp_suspend(struct radeon_device *rdev)
-{
- radeon_agp_fini(rdev);
-}
diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c
index 266e3cbbd09b..12e5c5d81c47 100644
--- a/drivers/gpu/drm/radeon/radeon_device.c
+++ b/drivers/gpu/drm/radeon/radeon_device.c
@@ -1145,22 +1145,6 @@ static void radeon_check_arguments(struct radeon_device *rdev)
}
rdev->mc.gtt_size = (uint64_t)radeon_gart_size << 20;
- /* AGP mode can only be -1, 1, 2, 4, 8 */
- switch (radeon_agpmode) {
- case -1:
- case 0:
- case 1:
- case 2:
- case 4:
- case 8:
- break;
- default:
- dev_warn(rdev->dev, "invalid AGP mode %d (valid mode: "
- "-1, 0, 1, 2, 4, 8)\n", radeon_agpmode);
- radeon_agpmode = 0;
- break;
- }
-
if (!radeon_check_pot_argument(radeon_vm_size)) {
dev_warn(rdev->dev, "VM size (%d) must be a power of 2\n",
radeon_vm_size);
@@ -1348,9 +1332,8 @@ int radeon_device_init(struct radeon_device *rdev,
rdev->flags &= ~RADEON_IS_AGP;
}
- if (rdev->flags & RADEON_IS_AGP && radeon_agpmode == -1) {
+ if (rdev->flags & RADEON_IS_AGP)
radeon_agp_disable(rdev);
- }
/* Set the internal MC address mask
* This is the max address of the GPU's
@@ -1636,8 +1619,6 @@ int radeon_suspend_kms(struct drm_device *dev, bool suspend,
*/
radeon_bo_evict_vram(rdev);
- radeon_agp_suspend(rdev);
-
pci_save_state(dev->pdev);
if (freeze && rdev->family >= CHIP_CEDAR && !(rdev->flags & RADEON_IS_IGP)) {
rdev->asic->asic_reset(rdev, true);
@@ -1687,8 +1668,6 @@ int radeon_resume_kms(struct drm_device *dev, bool resume, bool fbcon)
return -1;
}
}
- /* resume AGP if in use */
- radeon_agp_resume(rdev);
radeon_resume(rdev);
r = radeon_ib_ring_tests(rdev);
diff --git a/drivers/gpu/drm/radeon/radeon_drv.c b/drivers/gpu/drm/radeon/radeon_drv.c
index bbb0883e8ce6..62a5dfaf990b 100644
--- a/drivers/gpu/drm/radeon/radeon_drv.c
+++ b/drivers/gpu/drm/radeon/radeon_drv.c
@@ -171,12 +171,6 @@ int radeon_no_wb;
int radeon_modeset = -1;
int radeon_dynclks = -1;
int radeon_r4xx_atom = 0;
-#ifdef __powerpc__
-/* Default to PCI on PowerPC (fdo #95017) */
-int radeon_agpmode = -1;
-#else
-int radeon_agpmode = 0;
-#endif
int radeon_vram_limit = 0;
int radeon_gart_size = -1; /* auto */
int radeon_benchmarking = 0;
@@ -220,9 +214,6 @@ module_param_named(r4xx_atom, radeon_r4xx_atom, int, 0444);
MODULE_PARM_DESC(vramlimit, "Restrict VRAM for testing, in megabytes");
module_param_named(vramlimit, radeon_vram_limit, int, 0600);
-MODULE_PARM_DESC(agpmode, "AGP Mode (-1 == PCI)");
-module_param_named(agpmode, radeon_agpmode, int, 0444);
-
MODULE_PARM_DESC(gartsize, "Size of PCIE/IGP gart to setup in megabytes (32, 64, etc., -1 = auto)");
module_param_named(gartsize, radeon_gart_size, int, 0600);
diff --git a/drivers/gpu/drm/radeon/radeon_ttm.c b/drivers/gpu/drm/radeon/radeon_ttm.c
index 5d50c9edbe80..21bb3706c13c 100644
--- a/drivers/gpu/drm/radeon/radeon_ttm.c
+++ b/drivers/gpu/drm/radeon/radeon_ttm.c
@@ -86,20 +86,6 @@ static int radeon_init_mem_type(struct ttm_bo_device *bdev, uint32_t type,
man->available_caching = TTM_PL_MASK_CACHING;
man->default_caching = TTM_PL_FLAG_CACHED;
man->flags = TTM_MEMTYPE_FLAG_MAPPABLE | TTM_MEMTYPE_FLAG_CMA;
-#if IS_ENABLED(CONFIG_AGP)
- if (rdev->flags & RADEON_IS_AGP) {
- if (!rdev->ddev->agp) {
- DRM_ERROR("AGP is not enabled for memory type %u\n",
- (unsigned)type);
- return -EINVAL;
- }
- if (!rdev->ddev->agp->cant_use_aperture)
- man->flags = TTM_MEMTYPE_FLAG_MAPPABLE;
- man->available_caching = TTM_PL_FLAG_UNCACHED |
- TTM_PL_FLAG_WC;
- man->default_caching = TTM_PL_FLAG_WC;
- }
-#endif
break;
case TTM_PL_VRAM:
/* "On-card" video ram */
@@ -411,14 +397,6 @@ static int radeon_ttm_io_mem_reserve(struct ttm_bo_device *bdev, struct ttm_mem_
/* system memory */
return 0;
case TTM_PL_TT:
-#if IS_ENABLED(CONFIG_AGP)
- if (rdev->flags & RADEON_IS_AGP) {
- /* RADEON_IS_AGP is set only if AGP is active */
- mem->bus.offset = mem->start << PAGE_SHIFT;
- mem->bus.base = rdev->mc.agp_base;
- mem->bus.is_iomem = !rdev->ddev->agp->cant_use_aperture;
- }
-#endif
break;
case TTM_PL_VRAM:
mem->bus.offset = mem->start << PAGE_SHIFT;
@@ -631,12 +609,6 @@ static struct ttm_tt *radeon_ttm_tt_create(struct ttm_buffer_object *bo,
struct radeon_ttm_tt *gtt;
rdev = radeon_get_rdev(bo->bdev);
-#if IS_ENABLED(CONFIG_AGP)
- if (rdev->flags & RADEON_IS_AGP) {
- return ttm_agp_tt_create(bo, rdev->ddev->agp->bridge,
- page_flags);
- }
-#endif
gtt = kzalloc(sizeof(struct radeon_ttm_tt), GFP_KERNEL);
if (gtt == NULL) {
@@ -683,11 +655,6 @@ static int radeon_ttm_tt_populate(struct ttm_tt *ttm,
}
rdev = radeon_get_rdev(ttm->bdev);
-#if IS_ENABLED(CONFIG_AGP)
- if (rdev->flags & RADEON_IS_AGP) {
- return ttm_agp_tt_populate(ttm, ctx);
- }
-#endif
#ifdef CONFIG_SWIOTLB
if (rdev->need_swiotlb && swiotlb_nr_tbl()) {
@@ -714,12 +681,6 @@ static void radeon_ttm_tt_unpopulate(struct ttm_tt *ttm)
return;
rdev = radeon_get_rdev(ttm->bdev);
-#if IS_ENABLED(CONFIG_AGP)
- if (rdev->flags & RADEON_IS_AGP) {
- ttm_agp_tt_unpopulate(ttm);
- return;
- }
-#endif
#ifdef CONFIG_SWIOTLB
if (rdev->need_swiotlb && swiotlb_nr_tbl()) {
diff --git a/drivers/gpu/drm/radeon/rv515.c b/drivers/gpu/drm/radeon/rv515.c
index 147e5cf8348d..8a2f16320869 100644
--- a/drivers/gpu/drm/radeon/rv515.c
+++ b/drivers/gpu/drm/radeon/rv515.c
@@ -622,7 +622,6 @@ void rv515_fini(struct radeon_device *rdev)
radeon_ib_pool_fini(rdev);
radeon_gem_fini(rdev);
rv370_pcie_gart_fini(rdev);
- radeon_agp_fini(rdev);
radeon_irq_kms_fini(rdev);
radeon_fence_driver_fini(rdev);
radeon_bo_fini(rdev);
@@ -667,13 +666,6 @@ int rv515_init(struct radeon_device *rdev)
return -EINVAL;
/* Initialize clocks */
radeon_get_clock_info(rdev->ddev);
- /* initialize AGP */
- if (rdev->flags & RADEON_IS_AGP) {
- r = radeon_agp_init(rdev);
- if (r) {
- radeon_agp_disable(rdev);
- }
- }
/* initialize memory controller */
rv515_mc_init(rdev);
rv515_debugfs(rdev);
@@ -703,7 +695,6 @@ int rv515_init(struct radeon_device *rdev)
radeon_ib_pool_fini(rdev);
radeon_irq_kms_fini(rdev);
rv370_pcie_gart_fini(rdev);
- radeon_agp_fini(rdev);
rdev->accel_working = false;
}
return 0;
diff --git a/drivers/gpu/drm/radeon/rv770.c b/drivers/gpu/drm/radeon/rv770.c
index 21f653ae1e1b..20bf54266f24 100644
--- a/drivers/gpu/drm/radeon/rv770.c
+++ b/drivers/gpu/drm/radeon/rv770.c
@@ -1943,12 +1943,6 @@ int rv770_init(struct radeon_device *rdev)
r = radeon_fence_driver_init(rdev);
if (r)
return r;
- /* initialize AGP */
- if (rdev->flags & RADEON_IS_AGP) {
- r = radeon_agp_init(rdev);
- if (r)
- radeon_agp_disable(rdev);
- }
r = rv770_mc_init(rdev);
if (r)
return r;
@@ -2015,7 +2009,6 @@ void rv770_fini(struct radeon_device *rdev)
r600_vram_scratch_fini(rdev);
radeon_gem_fini(rdev);
radeon_fence_driver_fini(rdev);
- radeon_agp_fini(rdev);
radeon_bo_fini(rdev);
radeon_atombios_fini(rdev);
kfree(rdev->bios);
--
2.17.1
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply related [flat|nested] 81+ messages in thread
* [PATCH 1/3] drm/radeon: remove AGP support
@ 2020-05-11 17:17 ` Christian König
0 siblings, 0 replies; 81+ messages in thread
From: Christian König @ 2020-05-11 17:17 UTC (permalink / raw)
To: dri-devel, amd-gfx, nouveau
AGP is deprecated for 10+ years now and not used any more on modern hardware.
Old hardware should continue to work in PCI mode.
Signed-off-by: Christian König <christian.koenig@amd.com>
---
drivers/gpu/drm/radeon/Makefile | 4 +-
drivers/gpu/drm/radeon/evergreen.c | 7 -
drivers/gpu/drm/radeon/r100.c | 10 +-
drivers/gpu/drm/radeon/r300.c | 9 -
drivers/gpu/drm/radeon/r420.c | 9 -
drivers/gpu/drm/radeon/r520.c | 8 -
drivers/gpu/drm/radeon/r600.c | 6 -
drivers/gpu/drm/radeon/radeon.h | 11 -
drivers/gpu/drm/radeon/radeon_agp.c | 290 -------------------------
drivers/gpu/drm/radeon/radeon_device.c | 23 +-
drivers/gpu/drm/radeon/radeon_drv.c | 9 -
drivers/gpu/drm/radeon/radeon_ttm.c | 39 ----
drivers/gpu/drm/radeon/rv515.c | 9 -
drivers/gpu/drm/radeon/rv770.c | 7 -
14 files changed, 4 insertions(+), 437 deletions(-)
delete mode 100644 drivers/gpu/drm/radeon/radeon_agp.c
diff --git a/drivers/gpu/drm/radeon/Makefile b/drivers/gpu/drm/radeon/Makefile
index c693b2ca0329..77429cfd303e 100644
--- a/drivers/gpu/drm/radeon/Makefile
+++ b/drivers/gpu/drm/radeon/Makefile
@@ -61,8 +61,8 @@ radeon-y := radeon_drv.o
# add KMS driver
radeon-y += radeon_device.o radeon_asic.o radeon_kms.o \
- radeon_atombios.o radeon_agp.o atombios_crtc.o radeon_combios.o \
- atom.o radeon_fence.o radeon_ttm.o radeon_object.o radeon_gart.o \
+ radeon_atombios.o atombios_crtc.o radeon_combios.o atom.o \
+ radeon_fence.o radeon_ttm.o radeon_object.o radeon_gart.o \
radeon_legacy_crtc.o radeon_legacy_encoders.o radeon_connectors.o \
radeon_encoders.o radeon_display.o radeon_cursor.o radeon_i2c.o \
radeon_clocks.o radeon_fb.o radeon_gem.o radeon_ring.o radeon_irq_kms.o \
diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c
index 14d90dc376e7..66b3d9a2c6dd 100644
--- a/drivers/gpu/drm/radeon/evergreen.c
+++ b/drivers/gpu/drm/radeon/evergreen.c
@@ -5216,12 +5216,6 @@ int evergreen_init(struct radeon_device *rdev)
r = radeon_fence_driver_init(rdev);
if (r)
return r;
- /* initialize AGP */
- if (rdev->flags & RADEON_IS_AGP) {
- r = radeon_agp_init(rdev);
- if (r)
- radeon_agp_disable(rdev);
- }
/* initialize memory controller */
r = evergreen_mc_init(rdev);
if (r)
@@ -5315,7 +5309,6 @@ void evergreen_fini(struct radeon_device *rdev)
r600_vram_scratch_fini(rdev);
radeon_gem_fini(rdev);
radeon_fence_driver_fini(rdev);
- radeon_agp_fini(rdev);
radeon_bo_fini(rdev);
radeon_atombios_fini(rdev);
kfree(rdev->bios);
diff --git a/drivers/gpu/drm/radeon/r100.c b/drivers/gpu/drm/radeon/r100.c
index 24c8db673931..320b1b40a30a 100644
--- a/drivers/gpu/drm/radeon/r100.c
+++ b/drivers/gpu/drm/radeon/r100.c
@@ -3382,7 +3382,7 @@ void r100_bandwidth_update(struct radeon_device *rdev)
if (rdev->flags & RADEON_IS_AGP) {
fixed20_12 agpmode_ff;
- agpmode_ff.full = dfixed_const(radeon_agpmode);
+ agpmode_ff.full = dfixed_const(0);
temp_ff.full = dfixed_const_666(16);
sclk_eff_ff.full -= dfixed_mul(agpmode_ff, temp_ff);
}
@@ -3992,7 +3992,6 @@ void r100_fini(struct radeon_device *rdev)
radeon_gem_fini(rdev);
if (rdev->flags & RADEON_IS_PCI)
r100_pci_gart_fini(rdev);
- radeon_agp_fini(rdev);
radeon_irq_kms_fini(rdev);
radeon_fence_driver_fini(rdev);
radeon_bo_fini(rdev);
@@ -4068,13 +4067,6 @@ int r100_init(struct radeon_device *rdev)
r100_errata(rdev);
/* Initialize clocks */
radeon_get_clock_info(rdev->ddev);
- /* initialize AGP */
- if (rdev->flags & RADEON_IS_AGP) {
- r = radeon_agp_init(rdev);
- if (r) {
- radeon_agp_disable(rdev);
- }
- }
/* initialize VRAM */
r100_mc_init(rdev);
/* Fence driver */
diff --git a/drivers/gpu/drm/radeon/r300.c b/drivers/gpu/drm/radeon/r300.c
index 3b7ead5be5bf..afd688629cf9 100644
--- a/drivers/gpu/drm/radeon/r300.c
+++ b/drivers/gpu/drm/radeon/r300.c
@@ -1498,7 +1498,6 @@ void r300_fini(struct radeon_device *rdev)
rv370_pcie_gart_fini(rdev);
if (rdev->flags & RADEON_IS_PCI)
r100_pci_gart_fini(rdev);
- radeon_agp_fini(rdev);
radeon_irq_kms_fini(rdev);
radeon_fence_driver_fini(rdev);
radeon_bo_fini(rdev);
@@ -1547,13 +1546,6 @@ int r300_init(struct radeon_device *rdev)
r300_errata(rdev);
/* Initialize clocks */
radeon_get_clock_info(rdev->ddev);
- /* initialize AGP */
- if (rdev->flags & RADEON_IS_AGP) {
- r = radeon_agp_init(rdev);
- if (r) {
- radeon_agp_disable(rdev);
- }
- }
/* initialize memory controller */
r300_mc_init(rdev);
/* Fence driver */
@@ -1592,7 +1584,6 @@ int r300_init(struct radeon_device *rdev)
rv370_pcie_gart_fini(rdev);
if (rdev->flags & RADEON_IS_PCI)
r100_pci_gart_fini(rdev);
- radeon_agp_fini(rdev);
rdev->accel_working = false;
}
return 0;
diff --git a/drivers/gpu/drm/radeon/r420.c b/drivers/gpu/drm/radeon/r420.c
index 1d4c04e0a449..3cb337dacd56 100644
--- a/drivers/gpu/drm/radeon/r420.c
+++ b/drivers/gpu/drm/radeon/r420.c
@@ -366,7 +366,6 @@ void r420_fini(struct radeon_device *rdev)
rv370_pcie_gart_fini(rdev);
if (rdev->flags & RADEON_IS_PCI)
r100_pci_gart_fini(rdev);
- radeon_agp_fini(rdev);
radeon_irq_kms_fini(rdev);
radeon_fence_driver_fini(rdev);
radeon_bo_fini(rdev);
@@ -419,13 +418,6 @@ int r420_init(struct radeon_device *rdev)
/* Initialize clocks */
radeon_get_clock_info(rdev->ddev);
- /* initialize AGP */
- if (rdev->flags & RADEON_IS_AGP) {
- r = radeon_agp_init(rdev);
- if (r) {
- radeon_agp_disable(rdev);
- }
- }
/* initialize memory controller */
r300_mc_init(rdev);
r420_debugfs(rdev);
@@ -470,7 +462,6 @@ int r420_init(struct radeon_device *rdev)
rv370_pcie_gart_fini(rdev);
if (rdev->flags & RADEON_IS_PCI)
r100_pci_gart_fini(rdev);
- radeon_agp_fini(rdev);
rdev->accel_working = false;
}
return 0;
diff --git a/drivers/gpu/drm/radeon/r520.c b/drivers/gpu/drm/radeon/r520.c
index fc78e64ae727..76ac87d72406 100644
--- a/drivers/gpu/drm/radeon/r520.c
+++ b/drivers/gpu/drm/radeon/r520.c
@@ -288,13 +288,6 @@ int r520_init(struct radeon_device *rdev)
}
/* Initialize clocks */
radeon_get_clock_info(rdev->ddev);
- /* initialize AGP */
- if (rdev->flags & RADEON_IS_AGP) {
- r = radeon_agp_init(rdev);
- if (r) {
- radeon_agp_disable(rdev);
- }
- }
/* initialize memory controller */
r520_mc_init(rdev);
rv515_debugfs(rdev);
@@ -324,7 +317,6 @@ int r520_init(struct radeon_device *rdev)
radeon_ib_pool_fini(rdev);
radeon_irq_kms_fini(rdev);
rv370_pcie_gart_fini(rdev);
- radeon_agp_fini(rdev);
rdev->accel_working = false;
}
return 0;
diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c
index d9a33ca768f3..4a5ac15893c2 100644
--- a/drivers/gpu/drm/radeon/r600.c
+++ b/drivers/gpu/drm/radeon/r600.c
@@ -3286,11 +3286,6 @@ int r600_init(struct radeon_device *rdev)
r = radeon_fence_driver_init(rdev);
if (r)
return r;
- if (rdev->flags & RADEON_IS_AGP) {
- r = radeon_agp_init(rdev);
- if (r)
- radeon_agp_disable(rdev);
- }
r = r600_mc_init(rdev);
if (r)
return r;
@@ -3353,7 +3348,6 @@ void r600_fini(struct radeon_device *rdev)
radeon_irq_kms_fini(rdev);
r600_pcie_gart_fini(rdev);
r600_vram_scratch_fini(rdev);
- radeon_agp_fini(rdev);
radeon_gem_fini(rdev);
radeon_fence_driver_fini(rdev);
radeon_bo_fini(rdev);
diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h
index 30e32adc1fc6..377e1403b134 100644
--- a/drivers/gpu/drm/radeon/radeon.h
+++ b/drivers/gpu/drm/radeon/radeon.h
@@ -91,7 +91,6 @@ extern int radeon_no_wb;
extern int radeon_modeset;
extern int radeon_dynclks;
extern int radeon_r4xx_atom;
-extern int radeon_agpmode;
extern int radeon_vram_limit;
extern int radeon_gart_size;
extern int radeon_benchmarking;
@@ -1116,16 +1115,6 @@ typedef int (*radeon_packet0_check_t)(struct radeon_cs_parser *p,
typedef int (*radeon_packet3_check_t)(struct radeon_cs_parser *p,
struct radeon_cs_packet *pkt);
-
-/*
- * AGP
- */
-int radeon_agp_init(struct radeon_device *rdev);
-void radeon_agp_resume(struct radeon_device *rdev);
-void radeon_agp_suspend(struct radeon_device *rdev);
-void radeon_agp_fini(struct radeon_device *rdev);
-
-
/*
* Writeback
*/
diff --git a/drivers/gpu/drm/radeon/radeon_agp.c b/drivers/gpu/drm/radeon/radeon_agp.c
deleted file mode 100644
index 0aca7bdf54c7..000000000000
--- a/drivers/gpu/drm/radeon/radeon_agp.c
+++ /dev/null
@@ -1,290 +0,0 @@
-/*
- * Copyright 2008 Red Hat Inc.
- * Copyright 2009 Jerome Glisse.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
- * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
- * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
- * OTHER DEALINGS IN THE SOFTWARE.
- *
- * Authors:
- * Dave Airlie
- * Jerome Glisse <glisse@freedesktop.org>
- */
-
-#include <linux/pci.h>
-
-#include <drm/drm_agpsupport.h>
-#include <drm/drm_device.h>
-#include <drm/radeon_drm.h>
-
-#include "radeon.h"
-
-#if IS_ENABLED(CONFIG_AGP)
-
-struct radeon_agpmode_quirk {
- u32 hostbridge_vendor;
- u32 hostbridge_device;
- u32 chip_vendor;
- u32 chip_device;
- u32 subsys_vendor;
- u32 subsys_device;
- u32 default_mode;
-};
-
-static struct radeon_agpmode_quirk radeon_agpmode_quirk_list[] = {
- /* Intel E7505 Memory Controller Hub / RV350 AR [Radeon 9600XT] Needs AGPMode 4 (deb #515326) */
- { PCI_VENDOR_ID_INTEL, 0x2550, PCI_VENDOR_ID_ATI, 0x4152, 0x1458, 0x4038, 4},
- /* Intel 82865G/PE/P DRAM Controller/Host-Hub / Mobility 9800 Needs AGPMode 4 (deb #462590) */
- { PCI_VENDOR_ID_INTEL, 0x2570, PCI_VENDOR_ID_ATI, 0x4a4e, PCI_VENDOR_ID_DELL, 0x5106, 4},
- /* Intel 82865G/PE/P DRAM Controller/Host-Hub / RV280 [Radeon 9200 SE] Needs AGPMode 4 (lp #300304) */
- { PCI_VENDOR_ID_INTEL, 0x2570, PCI_VENDOR_ID_ATI, 0x5964,
- 0x148c, 0x2073, 4},
- /* Intel 82855PM Processor to I/O Controller / Mobility M6 LY Needs AGPMode 1 (deb #467235) */
- { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4c59,
- PCI_VENDOR_ID_IBM, 0x052f, 1},
- /* Intel 82855PM host bridge / Mobility 9600 M10 RV350 Needs AGPMode 1 (lp #195051) */
- { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4e50,
- PCI_VENDOR_ID_IBM, 0x0550, 1},
- /* Intel 82855PM host bridge / RV250/M9 GL [Mobility FireGL 9000/Radeon 9000] needs AGPMode 1 (Thinkpad T40p) */
- { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4c66,
- PCI_VENDOR_ID_IBM, 0x054d, 1},
- /* Intel 82855PM host bridge / Mobility M7 needs AGPMode 1 */
- { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4c57,
- PCI_VENDOR_ID_IBM, 0x0530, 1},
- /* Intel 82855PM host bridge / FireGL Mobility T2 RV350 Needs AGPMode 2 (fdo #20647) */
- { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4e54,
- PCI_VENDOR_ID_IBM, 0x054f, 2},
- /* Intel 82855PM host bridge / Mobility M9+ / VaioPCG-V505DX Needs AGPMode 2 (fdo #17928) */
- { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x5c61,
- PCI_VENDOR_ID_SONY, 0x816b, 2},
- /* Intel 82855PM Processor to I/O Controller / Mobility M9+ Needs AGPMode 8 (phoronix forum) */
- { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x5c61,
- PCI_VENDOR_ID_SONY, 0x8195, 8},
- /* Intel 82830 830 Chipset Host Bridge / Mobility M6 LY Needs AGPMode 2 (fdo #17360)*/
- { PCI_VENDOR_ID_INTEL, 0x3575, PCI_VENDOR_ID_ATI, 0x4c59,
- PCI_VENDOR_ID_DELL, 0x00e3, 2},
- /* Intel 82852/82855 host bridge / Mobility FireGL 9000 RV250 Needs AGPMode 1 (lp #296617) */
- { PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4c66,
- PCI_VENDOR_ID_DELL, 0x0149, 1},
- /* Intel 82855PM host bridge / Mobility FireGL 9000 RV250 Needs AGPMode 1 for suspend/resume */
- { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4c66,
- PCI_VENDOR_ID_IBM, 0x0531, 1},
- /* Intel 82852/82855 host bridge / Mobility 9600 M10 RV350 Needs AGPMode 1 (deb #467460) */
- { PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4e50,
- 0x1025, 0x0061, 1},
- /* Intel 82852/82855 host bridge / Mobility 9600 M10 RV350 Needs AGPMode 1 (lp #203007) */
- { PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4e50,
- 0x1025, 0x0064, 1},
- /* Intel 82852/82855 host bridge / Mobility 9600 M10 RV350 Needs AGPMode 1 (lp #141551) */
- { PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4e50,
- PCI_VENDOR_ID_ASUSTEK, 0x1942, 1},
- /* Intel 82852/82855 host bridge / Mobility 9600/9700 Needs AGPMode 1 (deb #510208) */
- { PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4e50,
- 0x10cf, 0x127f, 1},
- /* ASRock K7VT4A+ AGP 8x / ATI Radeon 9250 AGP Needs AGPMode 4 (lp #133192) */
- { 0x1849, 0x3189, PCI_VENDOR_ID_ATI, 0x5960,
- 0x1787, 0x5960, 4},
- /* VIA K8M800 Host Bridge / RV280 [Radeon 9200 PRO] Needs AGPMode 4 (fdo #12544) */
- { PCI_VENDOR_ID_VIA, 0x0204, PCI_VENDOR_ID_ATI, 0x5960,
- 0x17af, 0x2020, 4},
- /* VIA KT880 Host Bridge / RV350 [Radeon 9550] Needs AGPMode 4 (fdo #19981) */
- { PCI_VENDOR_ID_VIA, 0x0269, PCI_VENDOR_ID_ATI, 0x4153,
- PCI_VENDOR_ID_ASUSTEK, 0x003c, 4},
- /* VIA VT8363 Host Bridge / R200 QL [Radeon 8500] Needs AGPMode 2 (lp #141551) */
- { PCI_VENDOR_ID_VIA, 0x0305, PCI_VENDOR_ID_ATI, 0x514c,
- PCI_VENDOR_ID_ATI, 0x013a, 2},
- /* VIA VT82C693A Host Bridge / RV280 [Radeon 9200 PRO] Needs AGPMode 2 (deb #515512) */
- { PCI_VENDOR_ID_VIA, 0x0691, PCI_VENDOR_ID_ATI, 0x5960,
- PCI_VENDOR_ID_ASUSTEK, 0x004c, 2},
- /* VIA VT82C693A Host Bridge / RV280 [Radeon 9200 PRO] Needs AGPMode 2 */
- { PCI_VENDOR_ID_VIA, 0x0691, PCI_VENDOR_ID_ATI, 0x5960,
- PCI_VENDOR_ID_ASUSTEK, 0x0054, 2},
- /* VIA VT8377 Host Bridge / R200 QM [Radeon 9100] Needs AGPMode 4 (deb #461144) */
- { PCI_VENDOR_ID_VIA, 0x3189, PCI_VENDOR_ID_ATI, 0x514d,
- 0x174b, 0x7149, 4},
- /* VIA VT8377 Host Bridge / RV280 [Radeon 9200 PRO] Needs AGPMode 4 (lp #312693) */
- { PCI_VENDOR_ID_VIA, 0x3189, PCI_VENDOR_ID_ATI, 0x5960,
- 0x1462, 0x0380, 4},
- /* VIA VT8377 Host Bridge / RV280 Needs AGPMode 4 (ati ML) */
- { PCI_VENDOR_ID_VIA, 0x3189, PCI_VENDOR_ID_ATI, 0x5964,
- 0x148c, 0x2073, 4},
- /* ATI Host Bridge / RV280 [M9+] Needs AGPMode 1 (phoronix forum) */
- { PCI_VENDOR_ID_ATI, 0xcbb2, PCI_VENDOR_ID_ATI, 0x5c61,
- PCI_VENDOR_ID_SONY, 0x8175, 1},
- { 0, 0, 0, 0, 0, 0, 0 },
-};
-#endif
-
-int radeon_agp_init(struct radeon_device *rdev)
-{
-#if IS_ENABLED(CONFIG_AGP)
- struct radeon_agpmode_quirk *p = radeon_agpmode_quirk_list;
- struct drm_agp_mode mode;
- struct drm_agp_info info;
- uint32_t agp_status;
- int default_mode;
- bool is_v3;
- int ret;
-
- /* Acquire AGP. */
- ret = drm_agp_acquire(rdev->ddev);
- if (ret) {
- DRM_ERROR("Unable to acquire AGP: %d\n", ret);
- return ret;
- }
-
- ret = drm_agp_info(rdev->ddev, &info);
- if (ret) {
- drm_agp_release(rdev->ddev);
- DRM_ERROR("Unable to get AGP info: %d\n", ret);
- return ret;
- }
-
- if (rdev->ddev->agp->agp_info.aper_size < 32) {
- drm_agp_release(rdev->ddev);
- dev_warn(rdev->dev, "AGP aperture too small (%zuM) "
- "need at least 32M, disabling AGP\n",
- rdev->ddev->agp->agp_info.aper_size);
- return -EINVAL;
- }
-
- mode.mode = info.mode;
- /* chips with the agp to pcie bridge don't have the AGP_STATUS register
- * Just use the whatever mode the host sets up.
- */
- if (rdev->family <= CHIP_RV350)
- agp_status = (RREG32(RADEON_AGP_STATUS) | RADEON_AGPv3_MODE) & mode.mode;
- else
- agp_status = mode.mode;
- is_v3 = !!(agp_status & RADEON_AGPv3_MODE);
-
- if (is_v3) {
- default_mode = (agp_status & RADEON_AGPv3_8X_MODE) ? 8 : 4;
- } else {
- if (agp_status & RADEON_AGP_4X_MODE) {
- default_mode = 4;
- } else if (agp_status & RADEON_AGP_2X_MODE) {
- default_mode = 2;
- } else {
- default_mode = 1;
- }
- }
-
- /* Apply AGPMode Quirks */
- while (p && p->chip_device != 0) {
- if (info.id_vendor == p->hostbridge_vendor &&
- info.id_device == p->hostbridge_device &&
- rdev->pdev->vendor == p->chip_vendor &&
- rdev->pdev->device == p->chip_device &&
- rdev->pdev->subsystem_vendor == p->subsys_vendor &&
- rdev->pdev->subsystem_device == p->subsys_device) {
- default_mode = p->default_mode;
- }
- ++p;
- }
-
- if (radeon_agpmode > 0) {
- if ((radeon_agpmode < (is_v3 ? 4 : 1)) ||
- (radeon_agpmode > (is_v3 ? 8 : 4)) ||
- (radeon_agpmode & (radeon_agpmode - 1))) {
- DRM_ERROR("Illegal AGP Mode: %d (valid %s), leaving at %d\n",
- radeon_agpmode, is_v3 ? "4, 8" : "1, 2, 4",
- default_mode);
- radeon_agpmode = default_mode;
- } else {
- DRM_INFO("AGP mode requested: %d\n", radeon_agpmode);
- }
- } else {
- radeon_agpmode = default_mode;
- }
-
- mode.mode &= ~RADEON_AGP_MODE_MASK;
- if (is_v3) {
- switch (radeon_agpmode) {
- case 8:
- mode.mode |= RADEON_AGPv3_8X_MODE;
- break;
- case 4:
- default:
- mode.mode |= RADEON_AGPv3_4X_MODE;
- break;
- }
- } else {
- switch (radeon_agpmode) {
- case 4:
- mode.mode |= RADEON_AGP_4X_MODE;
- break;
- case 2:
- mode.mode |= RADEON_AGP_2X_MODE;
- break;
- case 1:
- default:
- mode.mode |= RADEON_AGP_1X_MODE;
- break;
- }
- }
-
- mode.mode &= ~RADEON_AGP_FW_MODE; /* disable fw */
- ret = drm_agp_enable(rdev->ddev, mode);
- if (ret) {
- DRM_ERROR("Unable to enable AGP (mode = 0x%lx)\n", mode.mode);
- drm_agp_release(rdev->ddev);
- return ret;
- }
-
- rdev->mc.agp_base = rdev->ddev->agp->agp_info.aper_base;
- rdev->mc.gtt_size = rdev->ddev->agp->agp_info.aper_size << 20;
- rdev->mc.gtt_start = rdev->mc.agp_base;
- rdev->mc.gtt_end = rdev->mc.gtt_start + rdev->mc.gtt_size - 1;
- dev_info(rdev->dev, "GTT: %lluM 0x%08llX - 0x%08llX\n",
- rdev->mc.gtt_size >> 20, rdev->mc.gtt_start, rdev->mc.gtt_end);
-
- /* workaround some hw issues */
- if (rdev->family < CHIP_R200) {
- WREG32(RADEON_AGP_CNTL, RREG32(RADEON_AGP_CNTL) | 0x000e0000);
- }
- return 0;
-#else
- return 0;
-#endif
-}
-
-void radeon_agp_resume(struct radeon_device *rdev)
-{
-#if IS_ENABLED(CONFIG_AGP)
- int r;
- if (rdev->flags & RADEON_IS_AGP) {
- r = radeon_agp_init(rdev);
- if (r)
- dev_warn(rdev->dev, "radeon AGP reinit failed\n");
- }
-#endif
-}
-
-void radeon_agp_fini(struct radeon_device *rdev)
-{
-#if IS_ENABLED(CONFIG_AGP)
- if (rdev->ddev->agp && rdev->ddev->agp->acquired) {
- drm_agp_release(rdev->ddev);
- }
-#endif
-}
-
-void radeon_agp_suspend(struct radeon_device *rdev)
-{
- radeon_agp_fini(rdev);
-}
diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c
index 266e3cbbd09b..12e5c5d81c47 100644
--- a/drivers/gpu/drm/radeon/radeon_device.c
+++ b/drivers/gpu/drm/radeon/radeon_device.c
@@ -1145,22 +1145,6 @@ static void radeon_check_arguments(struct radeon_device *rdev)
}
rdev->mc.gtt_size = (uint64_t)radeon_gart_size << 20;
- /* AGP mode can only be -1, 1, 2, 4, 8 */
- switch (radeon_agpmode) {
- case -1:
- case 0:
- case 1:
- case 2:
- case 4:
- case 8:
- break;
- default:
- dev_warn(rdev->dev, "invalid AGP mode %d (valid mode: "
- "-1, 0, 1, 2, 4, 8)\n", radeon_agpmode);
- radeon_agpmode = 0;
- break;
- }
-
if (!radeon_check_pot_argument(radeon_vm_size)) {
dev_warn(rdev->dev, "VM size (%d) must be a power of 2\n",
radeon_vm_size);
@@ -1348,9 +1332,8 @@ int radeon_device_init(struct radeon_device *rdev,
rdev->flags &= ~RADEON_IS_AGP;
}
- if (rdev->flags & RADEON_IS_AGP && radeon_agpmode == -1) {
+ if (rdev->flags & RADEON_IS_AGP)
radeon_agp_disable(rdev);
- }
/* Set the internal MC address mask
* This is the max address of the GPU's
@@ -1636,8 +1619,6 @@ int radeon_suspend_kms(struct drm_device *dev, bool suspend,
*/
radeon_bo_evict_vram(rdev);
- radeon_agp_suspend(rdev);
-
pci_save_state(dev->pdev);
if (freeze && rdev->family >= CHIP_CEDAR && !(rdev->flags & RADEON_IS_IGP)) {
rdev->asic->asic_reset(rdev, true);
@@ -1687,8 +1668,6 @@ int radeon_resume_kms(struct drm_device *dev, bool resume, bool fbcon)
return -1;
}
}
- /* resume AGP if in use */
- radeon_agp_resume(rdev);
radeon_resume(rdev);
r = radeon_ib_ring_tests(rdev);
diff --git a/drivers/gpu/drm/radeon/radeon_drv.c b/drivers/gpu/drm/radeon/radeon_drv.c
index bbb0883e8ce6..62a5dfaf990b 100644
--- a/drivers/gpu/drm/radeon/radeon_drv.c
+++ b/drivers/gpu/drm/radeon/radeon_drv.c
@@ -171,12 +171,6 @@ int radeon_no_wb;
int radeon_modeset = -1;
int radeon_dynclks = -1;
int radeon_r4xx_atom = 0;
-#ifdef __powerpc__
-/* Default to PCI on PowerPC (fdo #95017) */
-int radeon_agpmode = -1;
-#else
-int radeon_agpmode = 0;
-#endif
int radeon_vram_limit = 0;
int radeon_gart_size = -1; /* auto */
int radeon_benchmarking = 0;
@@ -220,9 +214,6 @@ module_param_named(r4xx_atom, radeon_r4xx_atom, int, 0444);
MODULE_PARM_DESC(vramlimit, "Restrict VRAM for testing, in megabytes");
module_param_named(vramlimit, radeon_vram_limit, int, 0600);
-MODULE_PARM_DESC(agpmode, "AGP Mode (-1 == PCI)");
-module_param_named(agpmode, radeon_agpmode, int, 0444);
-
MODULE_PARM_DESC(gartsize, "Size of PCIE/IGP gart to setup in megabytes (32, 64, etc., -1 = auto)");
module_param_named(gartsize, radeon_gart_size, int, 0600);
diff --git a/drivers/gpu/drm/radeon/radeon_ttm.c b/drivers/gpu/drm/radeon/radeon_ttm.c
index 5d50c9edbe80..21bb3706c13c 100644
--- a/drivers/gpu/drm/radeon/radeon_ttm.c
+++ b/drivers/gpu/drm/radeon/radeon_ttm.c
@@ -86,20 +86,6 @@ static int radeon_init_mem_type(struct ttm_bo_device *bdev, uint32_t type,
man->available_caching = TTM_PL_MASK_CACHING;
man->default_caching = TTM_PL_FLAG_CACHED;
man->flags = TTM_MEMTYPE_FLAG_MAPPABLE | TTM_MEMTYPE_FLAG_CMA;
-#if IS_ENABLED(CONFIG_AGP)
- if (rdev->flags & RADEON_IS_AGP) {
- if (!rdev->ddev->agp) {
- DRM_ERROR("AGP is not enabled for memory type %u\n",
- (unsigned)type);
- return -EINVAL;
- }
- if (!rdev->ddev->agp->cant_use_aperture)
- man->flags = TTM_MEMTYPE_FLAG_MAPPABLE;
- man->available_caching = TTM_PL_FLAG_UNCACHED |
- TTM_PL_FLAG_WC;
- man->default_caching = TTM_PL_FLAG_WC;
- }
-#endif
break;
case TTM_PL_VRAM:
/* "On-card" video ram */
@@ -411,14 +397,6 @@ static int radeon_ttm_io_mem_reserve(struct ttm_bo_device *bdev, struct ttm_mem_
/* system memory */
return 0;
case TTM_PL_TT:
-#if IS_ENABLED(CONFIG_AGP)
- if (rdev->flags & RADEON_IS_AGP) {
- /* RADEON_IS_AGP is set only if AGP is active */
- mem->bus.offset = mem->start << PAGE_SHIFT;
- mem->bus.base = rdev->mc.agp_base;
- mem->bus.is_iomem = !rdev->ddev->agp->cant_use_aperture;
- }
-#endif
break;
case TTM_PL_VRAM:
mem->bus.offset = mem->start << PAGE_SHIFT;
@@ -631,12 +609,6 @@ static struct ttm_tt *radeon_ttm_tt_create(struct ttm_buffer_object *bo,
struct radeon_ttm_tt *gtt;
rdev = radeon_get_rdev(bo->bdev);
-#if IS_ENABLED(CONFIG_AGP)
- if (rdev->flags & RADEON_IS_AGP) {
- return ttm_agp_tt_create(bo, rdev->ddev->agp->bridge,
- page_flags);
- }
-#endif
gtt = kzalloc(sizeof(struct radeon_ttm_tt), GFP_KERNEL);
if (gtt == NULL) {
@@ -683,11 +655,6 @@ static int radeon_ttm_tt_populate(struct ttm_tt *ttm,
}
rdev = radeon_get_rdev(ttm->bdev);
-#if IS_ENABLED(CONFIG_AGP)
- if (rdev->flags & RADEON_IS_AGP) {
- return ttm_agp_tt_populate(ttm, ctx);
- }
-#endif
#ifdef CONFIG_SWIOTLB
if (rdev->need_swiotlb && swiotlb_nr_tbl()) {
@@ -714,12 +681,6 @@ static void radeon_ttm_tt_unpopulate(struct ttm_tt *ttm)
return;
rdev = radeon_get_rdev(ttm->bdev);
-#if IS_ENABLED(CONFIG_AGP)
- if (rdev->flags & RADEON_IS_AGP) {
- ttm_agp_tt_unpopulate(ttm);
- return;
- }
-#endif
#ifdef CONFIG_SWIOTLB
if (rdev->need_swiotlb && swiotlb_nr_tbl()) {
diff --git a/drivers/gpu/drm/radeon/rv515.c b/drivers/gpu/drm/radeon/rv515.c
index 147e5cf8348d..8a2f16320869 100644
--- a/drivers/gpu/drm/radeon/rv515.c
+++ b/drivers/gpu/drm/radeon/rv515.c
@@ -622,7 +622,6 @@ void rv515_fini(struct radeon_device *rdev)
radeon_ib_pool_fini(rdev);
radeon_gem_fini(rdev);
rv370_pcie_gart_fini(rdev);
- radeon_agp_fini(rdev);
radeon_irq_kms_fini(rdev);
radeon_fence_driver_fini(rdev);
radeon_bo_fini(rdev);
@@ -667,13 +666,6 @@ int rv515_init(struct radeon_device *rdev)
return -EINVAL;
/* Initialize clocks */
radeon_get_clock_info(rdev->ddev);
- /* initialize AGP */
- if (rdev->flags & RADEON_IS_AGP) {
- r = radeon_agp_init(rdev);
- if (r) {
- radeon_agp_disable(rdev);
- }
- }
/* initialize memory controller */
rv515_mc_init(rdev);
rv515_debugfs(rdev);
@@ -703,7 +695,6 @@ int rv515_init(struct radeon_device *rdev)
radeon_ib_pool_fini(rdev);
radeon_irq_kms_fini(rdev);
rv370_pcie_gart_fini(rdev);
- radeon_agp_fini(rdev);
rdev->accel_working = false;
}
return 0;
diff --git a/drivers/gpu/drm/radeon/rv770.c b/drivers/gpu/drm/radeon/rv770.c
index 21f653ae1e1b..20bf54266f24 100644
--- a/drivers/gpu/drm/radeon/rv770.c
+++ b/drivers/gpu/drm/radeon/rv770.c
@@ -1943,12 +1943,6 @@ int rv770_init(struct radeon_device *rdev)
r = radeon_fence_driver_init(rdev);
if (r)
return r;
- /* initialize AGP */
- if (rdev->flags & RADEON_IS_AGP) {
- r = radeon_agp_init(rdev);
- if (r)
- radeon_agp_disable(rdev);
- }
r = rv770_mc_init(rdev);
if (r)
return r;
@@ -2015,7 +2009,6 @@ void rv770_fini(struct radeon_device *rdev)
r600_vram_scratch_fini(rdev);
radeon_gem_fini(rdev);
radeon_fence_driver_fini(rdev);
- radeon_agp_fini(rdev);
radeon_bo_fini(rdev);
radeon_atombios_fini(rdev);
kfree(rdev->bios);
--
2.17.1
_______________________________________________
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^ permalink raw reply related [flat|nested] 81+ messages in thread
* [PATCH 2/3] drm/nouveau: remove AGP support
2020-05-11 17:17 ` Christian König
(?)
@ 2020-05-11 17:17 ` Christian König
-1 siblings, 0 replies; 81+ messages in thread
From: Christian König @ 2020-05-11 17:17 UTC (permalink / raw)
To: dri-devel-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW,
amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW,
nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW
AGP is deprecated for 10+ years now and not used any more on modern hardware.
Old hardware should continue to work in PCI mode.
Signed-off-by: Christian König <christian.koenig@amd.com>
---
drivers/gpu/drm/nouveau/nouveau_abi16.c | 16 +-
drivers/gpu/drm/nouveau/nouveau_bo.c | 46 +----
drivers/gpu/drm/nouveau/nouveau_chan.c | 32 +---
drivers/gpu/drm/nouveau/nouveau_drv.h | 7 -
drivers/gpu/drm/nouveau/nouveau_ttm.c | 14 +-
drivers/gpu/drm/nouveau/nvkm/subdev/pci/agp.c | 175 ------------------
drivers/gpu/drm/nouveau/nvkm/subdev/pci/agp.h | 19 --
.../gpu/drm/nouveau/nvkm/subdev/pci/base.c | 22 +--
8 files changed, 17 insertions(+), 314 deletions(-)
delete mode 100644 drivers/gpu/drm/nouveau/nvkm/subdev/pci/agp.c
delete mode 100644 drivers/gpu/drm/nouveau/nvkm/subdev/pci/agp.h
diff --git a/drivers/gpu/drm/nouveau/nouveau_abi16.c b/drivers/gpu/drm/nouveau/nouveau_abi16.c
index e2bae1424502..b6754bfb2f48 100644
--- a/drivers/gpu/drm/nouveau/nouveau_abi16.c
+++ b/drivers/gpu/drm/nouveau/nouveau_abi16.c
@@ -515,7 +515,6 @@ int
nouveau_abi16_ioctl_notifierobj_alloc(ABI16_IOCTL_ARGS)
{
struct drm_nouveau_notifierobj_alloc *info = data;
- struct nouveau_drm *drm = nouveau_drm(dev);
struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv);
struct nouveau_abi16_chan *chan;
struct nouveau_abi16_ntfy *ntfy;
@@ -555,17 +554,10 @@ nouveau_abi16_ioctl_notifierobj_alloc(ABI16_IOCTL_ARGS)
args.start += chan->ntfy_vma->addr;
args.limit += chan->ntfy_vma->addr;
} else
- if (drm->agp.bridge) {
- args.target = NV_DMA_V0_TARGET_AGP;
- args.access = NV_DMA_V0_ACCESS_RDWR;
- args.start += drm->agp.base + chan->ntfy->bo.offset;
- args.limit += drm->agp.base + chan->ntfy->bo.offset;
- } else {
- args.target = NV_DMA_V0_TARGET_VM;
- args.access = NV_DMA_V0_ACCESS_RDWR;
- args.start += chan->ntfy->bo.offset;
- args.limit += chan->ntfy->bo.offset;
- }
+ args.target = NV_DMA_V0_TARGET_VM;
+ args.access = NV_DMA_V0_ACCESS_RDWR;
+ args.start += chan->ntfy->bo.offset;
+ args.limit += chan->ntfy->bo.offset;
client->route = NVDRM_OBJECT_ABI16;
client->super = true;
diff --git a/drivers/gpu/drm/nouveau/nouveau_bo.c b/drivers/gpu/drm/nouveau/nouveau_bo.c
index c40f127de3d0..4e12bcd6e629 100644
--- a/drivers/gpu/drm/nouveau/nouveau_bo.c
+++ b/drivers/gpu/drm/nouveau/nouveau_bo.c
@@ -635,14 +635,6 @@ nouveau_bo_wr32(struct nouveau_bo *nvbo, unsigned index, u32 val)
static struct ttm_tt *
nouveau_ttm_tt_create(struct ttm_buffer_object *bo, uint32_t page_flags)
{
-#if IS_ENABLED(CONFIG_AGP)
- struct nouveau_drm *drm = nouveau_bdev(bo->bdev);
-
- if (drm->agp.bridge) {
- return ttm_agp_tt_create(bo, drm->agp.bridge, page_flags);
- }
-#endif
-
return nouveau_sgdma_create_ttm(bo, page_flags);
}
@@ -685,23 +677,11 @@ nouveau_bo_init_mem_type(struct ttm_bo_device *bdev, uint32_t type,
if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_TESLA)
man->func = &nouveau_gart_manager;
else
- if (!drm->agp.bridge)
man->func = &nv04_gart_manager;
- else
- man->func = &ttm_bo_manager_func;
-
- if (drm->agp.bridge) {
- man->flags = TTM_MEMTYPE_FLAG_MAPPABLE;
- man->available_caching = TTM_PL_FLAG_UNCACHED |
- TTM_PL_FLAG_WC;
- man->default_caching = TTM_PL_FLAG_WC;
- } else {
- man->flags = TTM_MEMTYPE_FLAG_MAPPABLE |
- TTM_MEMTYPE_FLAG_CMA;
- man->available_caching = TTM_PL_MASK_CACHING;
- man->default_caching = TTM_PL_FLAG_CACHED;
- }
+ man->flags = TTM_MEMTYPE_FLAG_MAPPABLE | TTM_MEMTYPE_FLAG_CMA;
+ man->available_caching = TTM_PL_MASK_CACHING;
+ man->default_caching = TTM_PL_FLAG_CACHED;
break;
default:
return -EINVAL;
@@ -1448,13 +1428,6 @@ nouveau_ttm_io_mem_reserve(struct ttm_bo_device *bdev, struct ttm_mem_reg *reg)
/* System memory */
return 0;
case TTM_PL_TT:
-#if IS_ENABLED(CONFIG_AGP)
- if (drm->agp.bridge) {
- reg->bus.offset = reg->start << PAGE_SHIFT;
- reg->bus.base = drm->agp.base;
- reg->bus.is_iomem = !drm->agp.cma;
- }
-#endif
if (drm->client.mem->oclass < NVIF_CLASS_MEM_NV50 || !mem->kind)
/* untiled */
break;
@@ -1603,12 +1576,6 @@ nouveau_ttm_tt_populate(struct ttm_tt *ttm, struct ttm_operation_ctx *ctx)
drm = nouveau_bdev(ttm->bdev);
dev = drm->dev->dev;
-#if IS_ENABLED(CONFIG_AGP)
- if (drm->agp.bridge) {
- return ttm_agp_tt_populate(ttm, ctx);
- }
-#endif
-
#if IS_ENABLED(CONFIG_SWIOTLB) && IS_ENABLED(CONFIG_X86)
if (swiotlb_nr_tbl()) {
return ttm_dma_populate((void *)ttm, dev, ctx);
@@ -1656,13 +1623,6 @@ nouveau_ttm_tt_unpopulate(struct ttm_tt *ttm)
drm = nouveau_bdev(ttm->bdev);
dev = drm->dev->dev;
-#if IS_ENABLED(CONFIG_AGP)
- if (drm->agp.bridge) {
- ttm_agp_tt_unpopulate(ttm);
- return;
- }
-#endif
-
#if IS_ENABLED(CONFIG_SWIOTLB) && IS_ENABLED(CONFIG_X86)
if (swiotlb_nr_tbl()) {
ttm_dma_unpopulate((void *)ttm, dev);
diff --git a/drivers/gpu/drm/nouveau/nouveau_chan.c b/drivers/gpu/drm/nouveau/nouveau_chan.c
index d9381a053169..521c495a301a 100644
--- a/drivers/gpu/drm/nouveau/nouveau_chan.c
+++ b/drivers/gpu/drm/nouveau/nouveau_chan.c
@@ -200,18 +200,10 @@ nouveau_channel_prep(struct nouveau_drm *drm, struct nvif_device *device,
args.limit = device->info.ram_user - 1;
}
} else {
- if (chan->drm->agp.bridge) {
- args.target = NV_DMA_V0_TARGET_AGP;
- args.access = NV_DMA_V0_ACCESS_RDWR;
- args.start = chan->drm->agp.base;
- args.limit = chan->drm->agp.base +
- chan->drm->agp.size - 1;
- } else {
- args.target = NV_DMA_V0_TARGET_VM;
- args.access = NV_DMA_V0_ACCESS_RDWR;
- args.start = 0;
- args.limit = chan->vmm->vmm.limit - 1;
- }
+ args.target = NV_DMA_V0_TARGET_VM;
+ args.access = NV_DMA_V0_ACCESS_RDWR;
+ args.start = 0;
+ args.limit = chan->vmm->vmm.limit - 1;
}
ret = nvif_object_init(&device->object, 0, NV_DMA_FROM_MEMORY,
@@ -401,18 +393,10 @@ nouveau_channel_init(struct nouveau_channel *chan, u32 vram, u32 gart)
args.start = 0;
args.limit = chan->vmm->vmm.limit - 1;
} else
- if (chan->drm->agp.bridge) {
- args.target = NV_DMA_V0_TARGET_AGP;
- args.access = NV_DMA_V0_ACCESS_RDWR;
- args.start = chan->drm->agp.base;
- args.limit = chan->drm->agp.base +
- chan->drm->agp.size - 1;
- } else {
- args.target = NV_DMA_V0_TARGET_VM;
- args.access = NV_DMA_V0_ACCESS_RDWR;
- args.start = 0;
- args.limit = chan->vmm->vmm.limit - 1;
- }
+ args.target = NV_DMA_V0_TARGET_VM;
+ args.access = NV_DMA_V0_ACCESS_RDWR;
+ args.start = 0;
+ args.limit = chan->vmm->vmm.limit - 1;
ret = nvif_object_init(&chan->user, gart, NV_DMA_IN_MEMORY,
&args, sizeof(args), &chan->gart);
diff --git a/drivers/gpu/drm/nouveau/nouveau_drv.h b/drivers/gpu/drm/nouveau/nouveau_drv.h
index 2a6519737800..508b94a86ae4 100644
--- a/drivers/gpu/drm/nouveau/nouveau_drv.h
+++ b/drivers/gpu/drm/nouveau/nouveau_drv.h
@@ -142,13 +142,6 @@ struct nouveau_drm {
u8 old_pm_cap;
- struct {
- struct agp_bridge_data *bridge;
- u32 base;
- u32 size;
- bool cma;
- } agp;
-
/* TTM interface support */
struct {
struct ttm_bo_device bdev;
diff --git a/drivers/gpu/drm/nouveau/nouveau_ttm.c b/drivers/gpu/drm/nouveau/nouveau_ttm.c
index 7ca0a2498532..061510070350 100644
--- a/drivers/gpu/drm/nouveau/nouveau_ttm.c
+++ b/drivers/gpu/drm/nouveau/nouveau_ttm.c
@@ -192,7 +192,6 @@ int
nouveau_ttm_init(struct nouveau_drm *drm)
{
struct nvkm_device *device = nvxx_device(&drm->client.device);
- struct nvkm_pci *pci = device->pci;
struct nvif_mmu *mmu = &drm->client.mmu;
struct drm_device *dev = drm->dev;
int typei, ret;
@@ -222,13 +221,6 @@ nouveau_ttm_init(struct nouveau_drm *drm)
drm->ttm.type_vram = -1;
}
- if (pci && pci->agp.bridge) {
- drm->agp.bridge = pci->agp.bridge;
- drm->agp.base = pci->agp.base;
- drm->agp.size = pci->agp.size;
- drm->agp.cma = pci->agp.cma;
- }
-
ret = ttm_bo_device_init(&drm->ttm.bdev,
&nouveau_bo_driver,
dev->anon_inode->i_mapping,
@@ -256,11 +248,7 @@ nouveau_ttm_init(struct nouveau_drm *drm)
device->func->resource_size(device, 1));
/* GART init */
- if (!drm->agp.bridge) {
- drm->gem.gart_available = drm->client.vmm.vmm.limit;
- } else {
- drm->gem.gart_available = drm->agp.size;
- }
+ drm->gem.gart_available = drm->client.vmm.vmm.limit;
ret = ttm_bo_init_mm(&drm->ttm.bdev, TTM_PL_TT,
drm->gem.gart_available >> PAGE_SHIFT);
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/pci/agp.c b/drivers/gpu/drm/nouveau/nvkm/subdev/pci/agp.c
deleted file mode 100644
index 385a90f91ed6..000000000000
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/pci/agp.c
+++ /dev/null
@@ -1,175 +0,0 @@
-/*
- * Copyright 2015 Nouveau Project
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
- * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
- * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
- * OTHER DEALINGS IN THE SOFTWARE.
- */
-#include "agp.h"
-#ifdef __NVKM_PCI_AGP_H__
-#include <core/option.h>
-
-struct nvkm_device_agp_quirk {
- u16 hostbridge_vendor;
- u16 hostbridge_device;
- u16 chip_vendor;
- u16 chip_device;
- int mode;
-};
-
-static const struct nvkm_device_agp_quirk
-nvkm_device_agp_quirks[] = {
- /* VIA Apollo PRO133x / GeForce FX 5600 Ultra - fdo#20341 */
- { PCI_VENDOR_ID_VIA, 0x0691, PCI_VENDOR_ID_NVIDIA, 0x0311, 2 },
- /* SiS 761 does not support AGP cards, use PCI mode */
- { PCI_VENDOR_ID_SI, 0x0761, PCI_ANY_ID, PCI_ANY_ID, 0 },
- {},
-};
-
-void
-nvkm_agp_fini(struct nvkm_pci *pci)
-{
- if (pci->agp.acquired) {
- agp_backend_release(pci->agp.bridge);
- pci->agp.acquired = false;
- }
-}
-
-/* Ensure AGP controller is in a consistent state in case we need to
- * execute the VBIOS DEVINIT scripts.
- */
-void
-nvkm_agp_preinit(struct nvkm_pci *pci)
-{
- struct nvkm_device *device = pci->subdev.device;
- u32 mode = nvkm_pci_rd32(pci, 0x004c);
- u32 save[2];
-
- /* First of all, disable fast writes, otherwise if it's already
- * enabled in the AGP bridge and we disable the card's AGP
- * controller we might be locking ourselves out of it.
- */
- if ((mode | pci->agp.mode) & PCI_AGP_COMMAND_FW) {
- mode = pci->agp.mode & ~PCI_AGP_COMMAND_FW;
- agp_enable(pci->agp.bridge, mode);
- }
-
- /* clear busmaster bit, and disable AGP */
- save[0] = nvkm_pci_rd32(pci, 0x0004);
- nvkm_pci_wr32(pci, 0x0004, save[0] & ~0x00000004);
- nvkm_pci_wr32(pci, 0x004c, 0x00000000);
-
- /* reset PGRAPH, PFIFO and PTIMER */
- save[1] = nvkm_mask(device, 0x000200, 0x00011100, 0x00000000);
- nvkm_mask(device, 0x000200, 0x00011100, save[1]);
-
- /* and restore busmaster bit (gives effect of resetting AGP) */
- nvkm_pci_wr32(pci, 0x0004, save[0]);
-}
-
-int
-nvkm_agp_init(struct nvkm_pci *pci)
-{
- if (!agp_backend_acquire(pci->pdev)) {
- nvkm_error(&pci->subdev, "failed to acquire agp\n");
- return -ENODEV;
- }
-
- agp_enable(pci->agp.bridge, pci->agp.mode);
- pci->agp.acquired = true;
- return 0;
-}
-
-void
-nvkm_agp_dtor(struct nvkm_pci *pci)
-{
- arch_phys_wc_del(pci->agp.mtrr);
-}
-
-void
-nvkm_agp_ctor(struct nvkm_pci *pci)
-{
- const struct nvkm_device_agp_quirk *quirk = nvkm_device_agp_quirks;
- struct nvkm_subdev *subdev = &pci->subdev;
- struct nvkm_device *device = subdev->device;
- struct agp_kern_info info;
- int mode = -1;
-
-#ifdef __powerpc__
- /* Disable AGP by default on all PowerPC machines for now -- At
- * least some UniNorth-2 AGP bridges are known to be broken:
- * DMA from the host to the card works just fine, but writeback
- * from the card to the host goes straight to memory
- * untranslated bypassing that GATT somehow, making them quite
- * painful to deal with...
- */
- mode = 0;
-#endif
- mode = nvkm_longopt(device->cfgopt, "NvAGP", mode);
-
- /* acquire bridge temporarily, so that we can copy its info */
- if (!(pci->agp.bridge = agp_backend_acquire(pci->pdev))) {
- nvkm_warn(subdev, "failed to acquire agp\n");
- return;
- }
- agp_copy_info(pci->agp.bridge, &info);
- agp_backend_release(pci->agp.bridge);
-
- pci->agp.mode = info.mode;
- pci->agp.base = info.aper_base;
- pci->agp.size = info.aper_size * 1024 * 1024;
- pci->agp.cma = info.cant_use_aperture;
- pci->agp.mtrr = -1;
-
- /* determine if bridge + chipset combination needs a workaround */
- while (quirk->hostbridge_vendor) {
- if (info.device->vendor == quirk->hostbridge_vendor &&
- info.device->device == quirk->hostbridge_device &&
- (quirk->chip_vendor == (u16)PCI_ANY_ID ||
- pci->pdev->vendor == quirk->chip_vendor) &&
- (quirk->chip_device == (u16)PCI_ANY_ID ||
- pci->pdev->device == quirk->chip_device)) {
- nvkm_info(subdev, "forcing default agp mode to %dX, "
- "use NvAGP=<mode> to override\n",
- quirk->mode);
- mode = quirk->mode;
- break;
- }
- quirk++;
- }
-
- /* apply quirk / user-specified mode */
- if (mode >= 1) {
- if (pci->agp.mode & 0x00000008)
- mode /= 4; /* AGPv3 */
- pci->agp.mode &= ~0x00000007;
- pci->agp.mode |= (mode & 0x7);
- } else
- if (mode == 0) {
- pci->agp.bridge = NULL;
- return;
- }
-
- /* fast writes appear to be broken on nv18, they make the card
- * lock up randomly.
- */
- if (device->chipset == 0x18)
- pci->agp.mode &= ~PCI_AGP_COMMAND_FW;
-
- pci->agp.mtrr = arch_phys_wc_add(pci->agp.base, pci->agp.size);
-}
-#endif
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/pci/agp.h b/drivers/gpu/drm/nouveau/nvkm/subdev/pci/agp.h
deleted file mode 100644
index ad4d3621d02b..000000000000
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/pci/agp.h
+++ /dev/null
@@ -1,19 +0,0 @@
-/* SPDX-License-Identifier: MIT */
-#include "priv.h"
-#if defined(CONFIG_AGP) || (defined(CONFIG_AGP_MODULE) && defined(MODULE))
-#ifndef __NVKM_PCI_AGP_H__
-#define __NVKM_PCI_AGP_H__
-
-void nvkm_agp_ctor(struct nvkm_pci *);
-void nvkm_agp_dtor(struct nvkm_pci *);
-void nvkm_agp_preinit(struct nvkm_pci *);
-int nvkm_agp_init(struct nvkm_pci *);
-void nvkm_agp_fini(struct nvkm_pci *);
-#endif
-#else
-static inline void nvkm_agp_ctor(struct nvkm_pci *pci) {}
-static inline void nvkm_agp_dtor(struct nvkm_pci *pci) {}
-static inline void nvkm_agp_preinit(struct nvkm_pci *pci) {}
-static inline int nvkm_agp_init(struct nvkm_pci *pci) { return -ENOSYS; }
-static inline void nvkm_agp_fini(struct nvkm_pci *pci) {}
-#endif
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/pci/base.c b/drivers/gpu/drm/nouveau/nvkm/subdev/pci/base.c
index ee2431a7804e..4f84fc1f2499 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/pci/base.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/pci/base.c
@@ -22,7 +22,6 @@
* Authors: Ben Skeggs <bskeggs@redhat.com>
*/
#include "priv.h"
-#include "agp.h"
#include <core/option.h>
#include <core/pci.h>
@@ -86,20 +85,12 @@ nvkm_pci_intr(int irq, void *arg)
static int
nvkm_pci_fini(struct nvkm_subdev *subdev, bool suspend)
{
- struct nvkm_pci *pci = nvkm_pci(subdev);
-
- if (pci->agp.bridge)
- nvkm_agp_fini(pci);
-
return 0;
}
static int
nvkm_pci_preinit(struct nvkm_subdev *subdev)
{
- struct nvkm_pci *pci = nvkm_pci(subdev);
- if (pci->agp.bridge)
- nvkm_agp_preinit(pci);
return 0;
}
@@ -128,15 +119,9 @@ static int
nvkm_pci_init(struct nvkm_subdev *subdev)
{
struct nvkm_pci *pci = nvkm_pci(subdev);
- int ret;
- if (pci->agp.bridge) {
- ret = nvkm_agp_init(pci);
- if (ret)
- return ret;
- } else if (pci_is_pcie(pci->pdev)) {
+ if (pci_is_pcie(pci->pdev))
nvkm_pcie_init(pci);
- }
if (pci->func->init)
pci->func->init(pci);
@@ -155,8 +140,6 @@ nvkm_pci_dtor(struct nvkm_subdev *subdev)
{
struct nvkm_pci *pci = nvkm_pci(subdev);
- nvkm_agp_dtor(pci);
-
if (pci->irq >= 0) {
/* freq_irq() will call the handler, we use pci->irq == -1
* to signal that it's been torn down and should be a noop.
@@ -196,9 +179,6 @@ nvkm_pci_new_(const struct nvkm_pci_func *func, struct nvkm_device *device,
pci->pcie.speed = -1;
pci->pcie.width = -1;
- if (device->type == NVKM_DEVICE_AGP)
- nvkm_agp_ctor(pci);
-
switch (pci->pdev->device & 0x0ff0) {
case 0x00f0:
case 0x02e0:
--
2.17.1
_______________________________________________
Nouveau mailing list
Nouveau@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/nouveau
^ permalink raw reply related [flat|nested] 81+ messages in thread
* [PATCH 2/3] drm/nouveau: remove AGP support
@ 2020-05-11 17:17 ` Christian König
0 siblings, 0 replies; 81+ messages in thread
From: Christian König @ 2020-05-11 17:17 UTC (permalink / raw)
To: dri-devel, amd-gfx, nouveau
AGP is deprecated for 10+ years now and not used any more on modern hardware.
Old hardware should continue to work in PCI mode.
Signed-off-by: Christian König <christian.koenig@amd.com>
---
drivers/gpu/drm/nouveau/nouveau_abi16.c | 16 +-
drivers/gpu/drm/nouveau/nouveau_bo.c | 46 +----
drivers/gpu/drm/nouveau/nouveau_chan.c | 32 +---
drivers/gpu/drm/nouveau/nouveau_drv.h | 7 -
drivers/gpu/drm/nouveau/nouveau_ttm.c | 14 +-
drivers/gpu/drm/nouveau/nvkm/subdev/pci/agp.c | 175 ------------------
drivers/gpu/drm/nouveau/nvkm/subdev/pci/agp.h | 19 --
.../gpu/drm/nouveau/nvkm/subdev/pci/base.c | 22 +--
8 files changed, 17 insertions(+), 314 deletions(-)
delete mode 100644 drivers/gpu/drm/nouveau/nvkm/subdev/pci/agp.c
delete mode 100644 drivers/gpu/drm/nouveau/nvkm/subdev/pci/agp.h
diff --git a/drivers/gpu/drm/nouveau/nouveau_abi16.c b/drivers/gpu/drm/nouveau/nouveau_abi16.c
index e2bae1424502..b6754bfb2f48 100644
--- a/drivers/gpu/drm/nouveau/nouveau_abi16.c
+++ b/drivers/gpu/drm/nouveau/nouveau_abi16.c
@@ -515,7 +515,6 @@ int
nouveau_abi16_ioctl_notifierobj_alloc(ABI16_IOCTL_ARGS)
{
struct drm_nouveau_notifierobj_alloc *info = data;
- struct nouveau_drm *drm = nouveau_drm(dev);
struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv);
struct nouveau_abi16_chan *chan;
struct nouveau_abi16_ntfy *ntfy;
@@ -555,17 +554,10 @@ nouveau_abi16_ioctl_notifierobj_alloc(ABI16_IOCTL_ARGS)
args.start += chan->ntfy_vma->addr;
args.limit += chan->ntfy_vma->addr;
} else
- if (drm->agp.bridge) {
- args.target = NV_DMA_V0_TARGET_AGP;
- args.access = NV_DMA_V0_ACCESS_RDWR;
- args.start += drm->agp.base + chan->ntfy->bo.offset;
- args.limit += drm->agp.base + chan->ntfy->bo.offset;
- } else {
- args.target = NV_DMA_V0_TARGET_VM;
- args.access = NV_DMA_V0_ACCESS_RDWR;
- args.start += chan->ntfy->bo.offset;
- args.limit += chan->ntfy->bo.offset;
- }
+ args.target = NV_DMA_V0_TARGET_VM;
+ args.access = NV_DMA_V0_ACCESS_RDWR;
+ args.start += chan->ntfy->bo.offset;
+ args.limit += chan->ntfy->bo.offset;
client->route = NVDRM_OBJECT_ABI16;
client->super = true;
diff --git a/drivers/gpu/drm/nouveau/nouveau_bo.c b/drivers/gpu/drm/nouveau/nouveau_bo.c
index c40f127de3d0..4e12bcd6e629 100644
--- a/drivers/gpu/drm/nouveau/nouveau_bo.c
+++ b/drivers/gpu/drm/nouveau/nouveau_bo.c
@@ -635,14 +635,6 @@ nouveau_bo_wr32(struct nouveau_bo *nvbo, unsigned index, u32 val)
static struct ttm_tt *
nouveau_ttm_tt_create(struct ttm_buffer_object *bo, uint32_t page_flags)
{
-#if IS_ENABLED(CONFIG_AGP)
- struct nouveau_drm *drm = nouveau_bdev(bo->bdev);
-
- if (drm->agp.bridge) {
- return ttm_agp_tt_create(bo, drm->agp.bridge, page_flags);
- }
-#endif
-
return nouveau_sgdma_create_ttm(bo, page_flags);
}
@@ -685,23 +677,11 @@ nouveau_bo_init_mem_type(struct ttm_bo_device *bdev, uint32_t type,
if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_TESLA)
man->func = &nouveau_gart_manager;
else
- if (!drm->agp.bridge)
man->func = &nv04_gart_manager;
- else
- man->func = &ttm_bo_manager_func;
-
- if (drm->agp.bridge) {
- man->flags = TTM_MEMTYPE_FLAG_MAPPABLE;
- man->available_caching = TTM_PL_FLAG_UNCACHED |
- TTM_PL_FLAG_WC;
- man->default_caching = TTM_PL_FLAG_WC;
- } else {
- man->flags = TTM_MEMTYPE_FLAG_MAPPABLE |
- TTM_MEMTYPE_FLAG_CMA;
- man->available_caching = TTM_PL_MASK_CACHING;
- man->default_caching = TTM_PL_FLAG_CACHED;
- }
+ man->flags = TTM_MEMTYPE_FLAG_MAPPABLE | TTM_MEMTYPE_FLAG_CMA;
+ man->available_caching = TTM_PL_MASK_CACHING;
+ man->default_caching = TTM_PL_FLAG_CACHED;
break;
default:
return -EINVAL;
@@ -1448,13 +1428,6 @@ nouveau_ttm_io_mem_reserve(struct ttm_bo_device *bdev, struct ttm_mem_reg *reg)
/* System memory */
return 0;
case TTM_PL_TT:
-#if IS_ENABLED(CONFIG_AGP)
- if (drm->agp.bridge) {
- reg->bus.offset = reg->start << PAGE_SHIFT;
- reg->bus.base = drm->agp.base;
- reg->bus.is_iomem = !drm->agp.cma;
- }
-#endif
if (drm->client.mem->oclass < NVIF_CLASS_MEM_NV50 || !mem->kind)
/* untiled */
break;
@@ -1603,12 +1576,6 @@ nouveau_ttm_tt_populate(struct ttm_tt *ttm, struct ttm_operation_ctx *ctx)
drm = nouveau_bdev(ttm->bdev);
dev = drm->dev->dev;
-#if IS_ENABLED(CONFIG_AGP)
- if (drm->agp.bridge) {
- return ttm_agp_tt_populate(ttm, ctx);
- }
-#endif
-
#if IS_ENABLED(CONFIG_SWIOTLB) && IS_ENABLED(CONFIG_X86)
if (swiotlb_nr_tbl()) {
return ttm_dma_populate((void *)ttm, dev, ctx);
@@ -1656,13 +1623,6 @@ nouveau_ttm_tt_unpopulate(struct ttm_tt *ttm)
drm = nouveau_bdev(ttm->bdev);
dev = drm->dev->dev;
-#if IS_ENABLED(CONFIG_AGP)
- if (drm->agp.bridge) {
- ttm_agp_tt_unpopulate(ttm);
- return;
- }
-#endif
-
#if IS_ENABLED(CONFIG_SWIOTLB) && IS_ENABLED(CONFIG_X86)
if (swiotlb_nr_tbl()) {
ttm_dma_unpopulate((void *)ttm, dev);
diff --git a/drivers/gpu/drm/nouveau/nouveau_chan.c b/drivers/gpu/drm/nouveau/nouveau_chan.c
index d9381a053169..521c495a301a 100644
--- a/drivers/gpu/drm/nouveau/nouveau_chan.c
+++ b/drivers/gpu/drm/nouveau/nouveau_chan.c
@@ -200,18 +200,10 @@ nouveau_channel_prep(struct nouveau_drm *drm, struct nvif_device *device,
args.limit = device->info.ram_user - 1;
}
} else {
- if (chan->drm->agp.bridge) {
- args.target = NV_DMA_V0_TARGET_AGP;
- args.access = NV_DMA_V0_ACCESS_RDWR;
- args.start = chan->drm->agp.base;
- args.limit = chan->drm->agp.base +
- chan->drm->agp.size - 1;
- } else {
- args.target = NV_DMA_V0_TARGET_VM;
- args.access = NV_DMA_V0_ACCESS_RDWR;
- args.start = 0;
- args.limit = chan->vmm->vmm.limit - 1;
- }
+ args.target = NV_DMA_V0_TARGET_VM;
+ args.access = NV_DMA_V0_ACCESS_RDWR;
+ args.start = 0;
+ args.limit = chan->vmm->vmm.limit - 1;
}
ret = nvif_object_init(&device->object, 0, NV_DMA_FROM_MEMORY,
@@ -401,18 +393,10 @@ nouveau_channel_init(struct nouveau_channel *chan, u32 vram, u32 gart)
args.start = 0;
args.limit = chan->vmm->vmm.limit - 1;
} else
- if (chan->drm->agp.bridge) {
- args.target = NV_DMA_V0_TARGET_AGP;
- args.access = NV_DMA_V0_ACCESS_RDWR;
- args.start = chan->drm->agp.base;
- args.limit = chan->drm->agp.base +
- chan->drm->agp.size - 1;
- } else {
- args.target = NV_DMA_V0_TARGET_VM;
- args.access = NV_DMA_V0_ACCESS_RDWR;
- args.start = 0;
- args.limit = chan->vmm->vmm.limit - 1;
- }
+ args.target = NV_DMA_V0_TARGET_VM;
+ args.access = NV_DMA_V0_ACCESS_RDWR;
+ args.start = 0;
+ args.limit = chan->vmm->vmm.limit - 1;
ret = nvif_object_init(&chan->user, gart, NV_DMA_IN_MEMORY,
&args, sizeof(args), &chan->gart);
diff --git a/drivers/gpu/drm/nouveau/nouveau_drv.h b/drivers/gpu/drm/nouveau/nouveau_drv.h
index 2a6519737800..508b94a86ae4 100644
--- a/drivers/gpu/drm/nouveau/nouveau_drv.h
+++ b/drivers/gpu/drm/nouveau/nouveau_drv.h
@@ -142,13 +142,6 @@ struct nouveau_drm {
u8 old_pm_cap;
- struct {
- struct agp_bridge_data *bridge;
- u32 base;
- u32 size;
- bool cma;
- } agp;
-
/* TTM interface support */
struct {
struct ttm_bo_device bdev;
diff --git a/drivers/gpu/drm/nouveau/nouveau_ttm.c b/drivers/gpu/drm/nouveau/nouveau_ttm.c
index 7ca0a2498532..061510070350 100644
--- a/drivers/gpu/drm/nouveau/nouveau_ttm.c
+++ b/drivers/gpu/drm/nouveau/nouveau_ttm.c
@@ -192,7 +192,6 @@ int
nouveau_ttm_init(struct nouveau_drm *drm)
{
struct nvkm_device *device = nvxx_device(&drm->client.device);
- struct nvkm_pci *pci = device->pci;
struct nvif_mmu *mmu = &drm->client.mmu;
struct drm_device *dev = drm->dev;
int typei, ret;
@@ -222,13 +221,6 @@ nouveau_ttm_init(struct nouveau_drm *drm)
drm->ttm.type_vram = -1;
}
- if (pci && pci->agp.bridge) {
- drm->agp.bridge = pci->agp.bridge;
- drm->agp.base = pci->agp.base;
- drm->agp.size = pci->agp.size;
- drm->agp.cma = pci->agp.cma;
- }
-
ret = ttm_bo_device_init(&drm->ttm.bdev,
&nouveau_bo_driver,
dev->anon_inode->i_mapping,
@@ -256,11 +248,7 @@ nouveau_ttm_init(struct nouveau_drm *drm)
device->func->resource_size(device, 1));
/* GART init */
- if (!drm->agp.bridge) {
- drm->gem.gart_available = drm->client.vmm.vmm.limit;
- } else {
- drm->gem.gart_available = drm->agp.size;
- }
+ drm->gem.gart_available = drm->client.vmm.vmm.limit;
ret = ttm_bo_init_mm(&drm->ttm.bdev, TTM_PL_TT,
drm->gem.gart_available >> PAGE_SHIFT);
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/pci/agp.c b/drivers/gpu/drm/nouveau/nvkm/subdev/pci/agp.c
deleted file mode 100644
index 385a90f91ed6..000000000000
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/pci/agp.c
+++ /dev/null
@@ -1,175 +0,0 @@
-/*
- * Copyright 2015 Nouveau Project
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
- * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
- * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
- * OTHER DEALINGS IN THE SOFTWARE.
- */
-#include "agp.h"
-#ifdef __NVKM_PCI_AGP_H__
-#include <core/option.h>
-
-struct nvkm_device_agp_quirk {
- u16 hostbridge_vendor;
- u16 hostbridge_device;
- u16 chip_vendor;
- u16 chip_device;
- int mode;
-};
-
-static const struct nvkm_device_agp_quirk
-nvkm_device_agp_quirks[] = {
- /* VIA Apollo PRO133x / GeForce FX 5600 Ultra - fdo#20341 */
- { PCI_VENDOR_ID_VIA, 0x0691, PCI_VENDOR_ID_NVIDIA, 0x0311, 2 },
- /* SiS 761 does not support AGP cards, use PCI mode */
- { PCI_VENDOR_ID_SI, 0x0761, PCI_ANY_ID, PCI_ANY_ID, 0 },
- {},
-};
-
-void
-nvkm_agp_fini(struct nvkm_pci *pci)
-{
- if (pci->agp.acquired) {
- agp_backend_release(pci->agp.bridge);
- pci->agp.acquired = false;
- }
-}
-
-/* Ensure AGP controller is in a consistent state in case we need to
- * execute the VBIOS DEVINIT scripts.
- */
-void
-nvkm_agp_preinit(struct nvkm_pci *pci)
-{
- struct nvkm_device *device = pci->subdev.device;
- u32 mode = nvkm_pci_rd32(pci, 0x004c);
- u32 save[2];
-
- /* First of all, disable fast writes, otherwise if it's already
- * enabled in the AGP bridge and we disable the card's AGP
- * controller we might be locking ourselves out of it.
- */
- if ((mode | pci->agp.mode) & PCI_AGP_COMMAND_FW) {
- mode = pci->agp.mode & ~PCI_AGP_COMMAND_FW;
- agp_enable(pci->agp.bridge, mode);
- }
-
- /* clear busmaster bit, and disable AGP */
- save[0] = nvkm_pci_rd32(pci, 0x0004);
- nvkm_pci_wr32(pci, 0x0004, save[0] & ~0x00000004);
- nvkm_pci_wr32(pci, 0x004c, 0x00000000);
-
- /* reset PGRAPH, PFIFO and PTIMER */
- save[1] = nvkm_mask(device, 0x000200, 0x00011100, 0x00000000);
- nvkm_mask(device, 0x000200, 0x00011100, save[1]);
-
- /* and restore busmaster bit (gives effect of resetting AGP) */
- nvkm_pci_wr32(pci, 0x0004, save[0]);
-}
-
-int
-nvkm_agp_init(struct nvkm_pci *pci)
-{
- if (!agp_backend_acquire(pci->pdev)) {
- nvkm_error(&pci->subdev, "failed to acquire agp\n");
- return -ENODEV;
- }
-
- agp_enable(pci->agp.bridge, pci->agp.mode);
- pci->agp.acquired = true;
- return 0;
-}
-
-void
-nvkm_agp_dtor(struct nvkm_pci *pci)
-{
- arch_phys_wc_del(pci->agp.mtrr);
-}
-
-void
-nvkm_agp_ctor(struct nvkm_pci *pci)
-{
- const struct nvkm_device_agp_quirk *quirk = nvkm_device_agp_quirks;
- struct nvkm_subdev *subdev = &pci->subdev;
- struct nvkm_device *device = subdev->device;
- struct agp_kern_info info;
- int mode = -1;
-
-#ifdef __powerpc__
- /* Disable AGP by default on all PowerPC machines for now -- At
- * least some UniNorth-2 AGP bridges are known to be broken:
- * DMA from the host to the card works just fine, but writeback
- * from the card to the host goes straight to memory
- * untranslated bypassing that GATT somehow, making them quite
- * painful to deal with...
- */
- mode = 0;
-#endif
- mode = nvkm_longopt(device->cfgopt, "NvAGP", mode);
-
- /* acquire bridge temporarily, so that we can copy its info */
- if (!(pci->agp.bridge = agp_backend_acquire(pci->pdev))) {
- nvkm_warn(subdev, "failed to acquire agp\n");
- return;
- }
- agp_copy_info(pci->agp.bridge, &info);
- agp_backend_release(pci->agp.bridge);
-
- pci->agp.mode = info.mode;
- pci->agp.base = info.aper_base;
- pci->agp.size = info.aper_size * 1024 * 1024;
- pci->agp.cma = info.cant_use_aperture;
- pci->agp.mtrr = -1;
-
- /* determine if bridge + chipset combination needs a workaround */
- while (quirk->hostbridge_vendor) {
- if (info.device->vendor == quirk->hostbridge_vendor &&
- info.device->device == quirk->hostbridge_device &&
- (quirk->chip_vendor == (u16)PCI_ANY_ID ||
- pci->pdev->vendor == quirk->chip_vendor) &&
- (quirk->chip_device == (u16)PCI_ANY_ID ||
- pci->pdev->device == quirk->chip_device)) {
- nvkm_info(subdev, "forcing default agp mode to %dX, "
- "use NvAGP=<mode> to override\n",
- quirk->mode);
- mode = quirk->mode;
- break;
- }
- quirk++;
- }
-
- /* apply quirk / user-specified mode */
- if (mode >= 1) {
- if (pci->agp.mode & 0x00000008)
- mode /= 4; /* AGPv3 */
- pci->agp.mode &= ~0x00000007;
- pci->agp.mode |= (mode & 0x7);
- } else
- if (mode == 0) {
- pci->agp.bridge = NULL;
- return;
- }
-
- /* fast writes appear to be broken on nv18, they make the card
- * lock up randomly.
- */
- if (device->chipset == 0x18)
- pci->agp.mode &= ~PCI_AGP_COMMAND_FW;
-
- pci->agp.mtrr = arch_phys_wc_add(pci->agp.base, pci->agp.size);
-}
-#endif
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/pci/agp.h b/drivers/gpu/drm/nouveau/nvkm/subdev/pci/agp.h
deleted file mode 100644
index ad4d3621d02b..000000000000
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/pci/agp.h
+++ /dev/null
@@ -1,19 +0,0 @@
-/* SPDX-License-Identifier: MIT */
-#include "priv.h"
-#if defined(CONFIG_AGP) || (defined(CONFIG_AGP_MODULE) && defined(MODULE))
-#ifndef __NVKM_PCI_AGP_H__
-#define __NVKM_PCI_AGP_H__
-
-void nvkm_agp_ctor(struct nvkm_pci *);
-void nvkm_agp_dtor(struct nvkm_pci *);
-void nvkm_agp_preinit(struct nvkm_pci *);
-int nvkm_agp_init(struct nvkm_pci *);
-void nvkm_agp_fini(struct nvkm_pci *);
-#endif
-#else
-static inline void nvkm_agp_ctor(struct nvkm_pci *pci) {}
-static inline void nvkm_agp_dtor(struct nvkm_pci *pci) {}
-static inline void nvkm_agp_preinit(struct nvkm_pci *pci) {}
-static inline int nvkm_agp_init(struct nvkm_pci *pci) { return -ENOSYS; }
-static inline void nvkm_agp_fini(struct nvkm_pci *pci) {}
-#endif
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/pci/base.c b/drivers/gpu/drm/nouveau/nvkm/subdev/pci/base.c
index ee2431a7804e..4f84fc1f2499 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/pci/base.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/pci/base.c
@@ -22,7 +22,6 @@
* Authors: Ben Skeggs <bskeggs@redhat.com>
*/
#include "priv.h"
-#include "agp.h"
#include <core/option.h>
#include <core/pci.h>
@@ -86,20 +85,12 @@ nvkm_pci_intr(int irq, void *arg)
static int
nvkm_pci_fini(struct nvkm_subdev *subdev, bool suspend)
{
- struct nvkm_pci *pci = nvkm_pci(subdev);
-
- if (pci->agp.bridge)
- nvkm_agp_fini(pci);
-
return 0;
}
static int
nvkm_pci_preinit(struct nvkm_subdev *subdev)
{
- struct nvkm_pci *pci = nvkm_pci(subdev);
- if (pci->agp.bridge)
- nvkm_agp_preinit(pci);
return 0;
}
@@ -128,15 +119,9 @@ static int
nvkm_pci_init(struct nvkm_subdev *subdev)
{
struct nvkm_pci *pci = nvkm_pci(subdev);
- int ret;
- if (pci->agp.bridge) {
- ret = nvkm_agp_init(pci);
- if (ret)
- return ret;
- } else if (pci_is_pcie(pci->pdev)) {
+ if (pci_is_pcie(pci->pdev))
nvkm_pcie_init(pci);
- }
if (pci->func->init)
pci->func->init(pci);
@@ -155,8 +140,6 @@ nvkm_pci_dtor(struct nvkm_subdev *subdev)
{
struct nvkm_pci *pci = nvkm_pci(subdev);
- nvkm_agp_dtor(pci);
-
if (pci->irq >= 0) {
/* freq_irq() will call the handler, we use pci->irq == -1
* to signal that it's been torn down and should be a noop.
@@ -196,9 +179,6 @@ nvkm_pci_new_(const struct nvkm_pci_func *func, struct nvkm_device *device,
pci->pcie.speed = -1;
pci->pcie.width = -1;
- if (device->type == NVKM_DEVICE_AGP)
- nvkm_agp_ctor(pci);
-
switch (pci->pdev->device & 0x0ff0) {
case 0x00f0:
case 0x02e0:
--
2.17.1
_______________________________________________
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dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply related [flat|nested] 81+ messages in thread
* [PATCH 2/3] drm/nouveau: remove AGP support
@ 2020-05-11 17:17 ` Christian König
0 siblings, 0 replies; 81+ messages in thread
From: Christian König @ 2020-05-11 17:17 UTC (permalink / raw)
To: dri-devel, amd-gfx, nouveau
AGP is deprecated for 10+ years now and not used any more on modern hardware.
Old hardware should continue to work in PCI mode.
Signed-off-by: Christian König <christian.koenig@amd.com>
---
drivers/gpu/drm/nouveau/nouveau_abi16.c | 16 +-
drivers/gpu/drm/nouveau/nouveau_bo.c | 46 +----
drivers/gpu/drm/nouveau/nouveau_chan.c | 32 +---
drivers/gpu/drm/nouveau/nouveau_drv.h | 7 -
drivers/gpu/drm/nouveau/nouveau_ttm.c | 14 +-
drivers/gpu/drm/nouveau/nvkm/subdev/pci/agp.c | 175 ------------------
drivers/gpu/drm/nouveau/nvkm/subdev/pci/agp.h | 19 --
.../gpu/drm/nouveau/nvkm/subdev/pci/base.c | 22 +--
8 files changed, 17 insertions(+), 314 deletions(-)
delete mode 100644 drivers/gpu/drm/nouveau/nvkm/subdev/pci/agp.c
delete mode 100644 drivers/gpu/drm/nouveau/nvkm/subdev/pci/agp.h
diff --git a/drivers/gpu/drm/nouveau/nouveau_abi16.c b/drivers/gpu/drm/nouveau/nouveau_abi16.c
index e2bae1424502..b6754bfb2f48 100644
--- a/drivers/gpu/drm/nouveau/nouveau_abi16.c
+++ b/drivers/gpu/drm/nouveau/nouveau_abi16.c
@@ -515,7 +515,6 @@ int
nouveau_abi16_ioctl_notifierobj_alloc(ABI16_IOCTL_ARGS)
{
struct drm_nouveau_notifierobj_alloc *info = data;
- struct nouveau_drm *drm = nouveau_drm(dev);
struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv);
struct nouveau_abi16_chan *chan;
struct nouveau_abi16_ntfy *ntfy;
@@ -555,17 +554,10 @@ nouveau_abi16_ioctl_notifierobj_alloc(ABI16_IOCTL_ARGS)
args.start += chan->ntfy_vma->addr;
args.limit += chan->ntfy_vma->addr;
} else
- if (drm->agp.bridge) {
- args.target = NV_DMA_V0_TARGET_AGP;
- args.access = NV_DMA_V0_ACCESS_RDWR;
- args.start += drm->agp.base + chan->ntfy->bo.offset;
- args.limit += drm->agp.base + chan->ntfy->bo.offset;
- } else {
- args.target = NV_DMA_V0_TARGET_VM;
- args.access = NV_DMA_V0_ACCESS_RDWR;
- args.start += chan->ntfy->bo.offset;
- args.limit += chan->ntfy->bo.offset;
- }
+ args.target = NV_DMA_V0_TARGET_VM;
+ args.access = NV_DMA_V0_ACCESS_RDWR;
+ args.start += chan->ntfy->bo.offset;
+ args.limit += chan->ntfy->bo.offset;
client->route = NVDRM_OBJECT_ABI16;
client->super = true;
diff --git a/drivers/gpu/drm/nouveau/nouveau_bo.c b/drivers/gpu/drm/nouveau/nouveau_bo.c
index c40f127de3d0..4e12bcd6e629 100644
--- a/drivers/gpu/drm/nouveau/nouveau_bo.c
+++ b/drivers/gpu/drm/nouveau/nouveau_bo.c
@@ -635,14 +635,6 @@ nouveau_bo_wr32(struct nouveau_bo *nvbo, unsigned index, u32 val)
static struct ttm_tt *
nouveau_ttm_tt_create(struct ttm_buffer_object *bo, uint32_t page_flags)
{
-#if IS_ENABLED(CONFIG_AGP)
- struct nouveau_drm *drm = nouveau_bdev(bo->bdev);
-
- if (drm->agp.bridge) {
- return ttm_agp_tt_create(bo, drm->agp.bridge, page_flags);
- }
-#endif
-
return nouveau_sgdma_create_ttm(bo, page_flags);
}
@@ -685,23 +677,11 @@ nouveau_bo_init_mem_type(struct ttm_bo_device *bdev, uint32_t type,
if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_TESLA)
man->func = &nouveau_gart_manager;
else
- if (!drm->agp.bridge)
man->func = &nv04_gart_manager;
- else
- man->func = &ttm_bo_manager_func;
-
- if (drm->agp.bridge) {
- man->flags = TTM_MEMTYPE_FLAG_MAPPABLE;
- man->available_caching = TTM_PL_FLAG_UNCACHED |
- TTM_PL_FLAG_WC;
- man->default_caching = TTM_PL_FLAG_WC;
- } else {
- man->flags = TTM_MEMTYPE_FLAG_MAPPABLE |
- TTM_MEMTYPE_FLAG_CMA;
- man->available_caching = TTM_PL_MASK_CACHING;
- man->default_caching = TTM_PL_FLAG_CACHED;
- }
+ man->flags = TTM_MEMTYPE_FLAG_MAPPABLE | TTM_MEMTYPE_FLAG_CMA;
+ man->available_caching = TTM_PL_MASK_CACHING;
+ man->default_caching = TTM_PL_FLAG_CACHED;
break;
default:
return -EINVAL;
@@ -1448,13 +1428,6 @@ nouveau_ttm_io_mem_reserve(struct ttm_bo_device *bdev, struct ttm_mem_reg *reg)
/* System memory */
return 0;
case TTM_PL_TT:
-#if IS_ENABLED(CONFIG_AGP)
- if (drm->agp.bridge) {
- reg->bus.offset = reg->start << PAGE_SHIFT;
- reg->bus.base = drm->agp.base;
- reg->bus.is_iomem = !drm->agp.cma;
- }
-#endif
if (drm->client.mem->oclass < NVIF_CLASS_MEM_NV50 || !mem->kind)
/* untiled */
break;
@@ -1603,12 +1576,6 @@ nouveau_ttm_tt_populate(struct ttm_tt *ttm, struct ttm_operation_ctx *ctx)
drm = nouveau_bdev(ttm->bdev);
dev = drm->dev->dev;
-#if IS_ENABLED(CONFIG_AGP)
- if (drm->agp.bridge) {
- return ttm_agp_tt_populate(ttm, ctx);
- }
-#endif
-
#if IS_ENABLED(CONFIG_SWIOTLB) && IS_ENABLED(CONFIG_X86)
if (swiotlb_nr_tbl()) {
return ttm_dma_populate((void *)ttm, dev, ctx);
@@ -1656,13 +1623,6 @@ nouveau_ttm_tt_unpopulate(struct ttm_tt *ttm)
drm = nouveau_bdev(ttm->bdev);
dev = drm->dev->dev;
-#if IS_ENABLED(CONFIG_AGP)
- if (drm->agp.bridge) {
- ttm_agp_tt_unpopulate(ttm);
- return;
- }
-#endif
-
#if IS_ENABLED(CONFIG_SWIOTLB) && IS_ENABLED(CONFIG_X86)
if (swiotlb_nr_tbl()) {
ttm_dma_unpopulate((void *)ttm, dev);
diff --git a/drivers/gpu/drm/nouveau/nouveau_chan.c b/drivers/gpu/drm/nouveau/nouveau_chan.c
index d9381a053169..521c495a301a 100644
--- a/drivers/gpu/drm/nouveau/nouveau_chan.c
+++ b/drivers/gpu/drm/nouveau/nouveau_chan.c
@@ -200,18 +200,10 @@ nouveau_channel_prep(struct nouveau_drm *drm, struct nvif_device *device,
args.limit = device->info.ram_user - 1;
}
} else {
- if (chan->drm->agp.bridge) {
- args.target = NV_DMA_V0_TARGET_AGP;
- args.access = NV_DMA_V0_ACCESS_RDWR;
- args.start = chan->drm->agp.base;
- args.limit = chan->drm->agp.base +
- chan->drm->agp.size - 1;
- } else {
- args.target = NV_DMA_V0_TARGET_VM;
- args.access = NV_DMA_V0_ACCESS_RDWR;
- args.start = 0;
- args.limit = chan->vmm->vmm.limit - 1;
- }
+ args.target = NV_DMA_V0_TARGET_VM;
+ args.access = NV_DMA_V0_ACCESS_RDWR;
+ args.start = 0;
+ args.limit = chan->vmm->vmm.limit - 1;
}
ret = nvif_object_init(&device->object, 0, NV_DMA_FROM_MEMORY,
@@ -401,18 +393,10 @@ nouveau_channel_init(struct nouveau_channel *chan, u32 vram, u32 gart)
args.start = 0;
args.limit = chan->vmm->vmm.limit - 1;
} else
- if (chan->drm->agp.bridge) {
- args.target = NV_DMA_V0_TARGET_AGP;
- args.access = NV_DMA_V0_ACCESS_RDWR;
- args.start = chan->drm->agp.base;
- args.limit = chan->drm->agp.base +
- chan->drm->agp.size - 1;
- } else {
- args.target = NV_DMA_V0_TARGET_VM;
- args.access = NV_DMA_V0_ACCESS_RDWR;
- args.start = 0;
- args.limit = chan->vmm->vmm.limit - 1;
- }
+ args.target = NV_DMA_V0_TARGET_VM;
+ args.access = NV_DMA_V0_ACCESS_RDWR;
+ args.start = 0;
+ args.limit = chan->vmm->vmm.limit - 1;
ret = nvif_object_init(&chan->user, gart, NV_DMA_IN_MEMORY,
&args, sizeof(args), &chan->gart);
diff --git a/drivers/gpu/drm/nouveau/nouveau_drv.h b/drivers/gpu/drm/nouveau/nouveau_drv.h
index 2a6519737800..508b94a86ae4 100644
--- a/drivers/gpu/drm/nouveau/nouveau_drv.h
+++ b/drivers/gpu/drm/nouveau/nouveau_drv.h
@@ -142,13 +142,6 @@ struct nouveau_drm {
u8 old_pm_cap;
- struct {
- struct agp_bridge_data *bridge;
- u32 base;
- u32 size;
- bool cma;
- } agp;
-
/* TTM interface support */
struct {
struct ttm_bo_device bdev;
diff --git a/drivers/gpu/drm/nouveau/nouveau_ttm.c b/drivers/gpu/drm/nouveau/nouveau_ttm.c
index 7ca0a2498532..061510070350 100644
--- a/drivers/gpu/drm/nouveau/nouveau_ttm.c
+++ b/drivers/gpu/drm/nouveau/nouveau_ttm.c
@@ -192,7 +192,6 @@ int
nouveau_ttm_init(struct nouveau_drm *drm)
{
struct nvkm_device *device = nvxx_device(&drm->client.device);
- struct nvkm_pci *pci = device->pci;
struct nvif_mmu *mmu = &drm->client.mmu;
struct drm_device *dev = drm->dev;
int typei, ret;
@@ -222,13 +221,6 @@ nouveau_ttm_init(struct nouveau_drm *drm)
drm->ttm.type_vram = -1;
}
- if (pci && pci->agp.bridge) {
- drm->agp.bridge = pci->agp.bridge;
- drm->agp.base = pci->agp.base;
- drm->agp.size = pci->agp.size;
- drm->agp.cma = pci->agp.cma;
- }
-
ret = ttm_bo_device_init(&drm->ttm.bdev,
&nouveau_bo_driver,
dev->anon_inode->i_mapping,
@@ -256,11 +248,7 @@ nouveau_ttm_init(struct nouveau_drm *drm)
device->func->resource_size(device, 1));
/* GART init */
- if (!drm->agp.bridge) {
- drm->gem.gart_available = drm->client.vmm.vmm.limit;
- } else {
- drm->gem.gart_available = drm->agp.size;
- }
+ drm->gem.gart_available = drm->client.vmm.vmm.limit;
ret = ttm_bo_init_mm(&drm->ttm.bdev, TTM_PL_TT,
drm->gem.gart_available >> PAGE_SHIFT);
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/pci/agp.c b/drivers/gpu/drm/nouveau/nvkm/subdev/pci/agp.c
deleted file mode 100644
index 385a90f91ed6..000000000000
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/pci/agp.c
+++ /dev/null
@@ -1,175 +0,0 @@
-/*
- * Copyright 2015 Nouveau Project
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
- * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
- * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
- * OTHER DEALINGS IN THE SOFTWARE.
- */
-#include "agp.h"
-#ifdef __NVKM_PCI_AGP_H__
-#include <core/option.h>
-
-struct nvkm_device_agp_quirk {
- u16 hostbridge_vendor;
- u16 hostbridge_device;
- u16 chip_vendor;
- u16 chip_device;
- int mode;
-};
-
-static const struct nvkm_device_agp_quirk
-nvkm_device_agp_quirks[] = {
- /* VIA Apollo PRO133x / GeForce FX 5600 Ultra - fdo#20341 */
- { PCI_VENDOR_ID_VIA, 0x0691, PCI_VENDOR_ID_NVIDIA, 0x0311, 2 },
- /* SiS 761 does not support AGP cards, use PCI mode */
- { PCI_VENDOR_ID_SI, 0x0761, PCI_ANY_ID, PCI_ANY_ID, 0 },
- {},
-};
-
-void
-nvkm_agp_fini(struct nvkm_pci *pci)
-{
- if (pci->agp.acquired) {
- agp_backend_release(pci->agp.bridge);
- pci->agp.acquired = false;
- }
-}
-
-/* Ensure AGP controller is in a consistent state in case we need to
- * execute the VBIOS DEVINIT scripts.
- */
-void
-nvkm_agp_preinit(struct nvkm_pci *pci)
-{
- struct nvkm_device *device = pci->subdev.device;
- u32 mode = nvkm_pci_rd32(pci, 0x004c);
- u32 save[2];
-
- /* First of all, disable fast writes, otherwise if it's already
- * enabled in the AGP bridge and we disable the card's AGP
- * controller we might be locking ourselves out of it.
- */
- if ((mode | pci->agp.mode) & PCI_AGP_COMMAND_FW) {
- mode = pci->agp.mode & ~PCI_AGP_COMMAND_FW;
- agp_enable(pci->agp.bridge, mode);
- }
-
- /* clear busmaster bit, and disable AGP */
- save[0] = nvkm_pci_rd32(pci, 0x0004);
- nvkm_pci_wr32(pci, 0x0004, save[0] & ~0x00000004);
- nvkm_pci_wr32(pci, 0x004c, 0x00000000);
-
- /* reset PGRAPH, PFIFO and PTIMER */
- save[1] = nvkm_mask(device, 0x000200, 0x00011100, 0x00000000);
- nvkm_mask(device, 0x000200, 0x00011100, save[1]);
-
- /* and restore busmaster bit (gives effect of resetting AGP) */
- nvkm_pci_wr32(pci, 0x0004, save[0]);
-}
-
-int
-nvkm_agp_init(struct nvkm_pci *pci)
-{
- if (!agp_backend_acquire(pci->pdev)) {
- nvkm_error(&pci->subdev, "failed to acquire agp\n");
- return -ENODEV;
- }
-
- agp_enable(pci->agp.bridge, pci->agp.mode);
- pci->agp.acquired = true;
- return 0;
-}
-
-void
-nvkm_agp_dtor(struct nvkm_pci *pci)
-{
- arch_phys_wc_del(pci->agp.mtrr);
-}
-
-void
-nvkm_agp_ctor(struct nvkm_pci *pci)
-{
- const struct nvkm_device_agp_quirk *quirk = nvkm_device_agp_quirks;
- struct nvkm_subdev *subdev = &pci->subdev;
- struct nvkm_device *device = subdev->device;
- struct agp_kern_info info;
- int mode = -1;
-
-#ifdef __powerpc__
- /* Disable AGP by default on all PowerPC machines for now -- At
- * least some UniNorth-2 AGP bridges are known to be broken:
- * DMA from the host to the card works just fine, but writeback
- * from the card to the host goes straight to memory
- * untranslated bypassing that GATT somehow, making them quite
- * painful to deal with...
- */
- mode = 0;
-#endif
- mode = nvkm_longopt(device->cfgopt, "NvAGP", mode);
-
- /* acquire bridge temporarily, so that we can copy its info */
- if (!(pci->agp.bridge = agp_backend_acquire(pci->pdev))) {
- nvkm_warn(subdev, "failed to acquire agp\n");
- return;
- }
- agp_copy_info(pci->agp.bridge, &info);
- agp_backend_release(pci->agp.bridge);
-
- pci->agp.mode = info.mode;
- pci->agp.base = info.aper_base;
- pci->agp.size = info.aper_size * 1024 * 1024;
- pci->agp.cma = info.cant_use_aperture;
- pci->agp.mtrr = -1;
-
- /* determine if bridge + chipset combination needs a workaround */
- while (quirk->hostbridge_vendor) {
- if (info.device->vendor == quirk->hostbridge_vendor &&
- info.device->device == quirk->hostbridge_device &&
- (quirk->chip_vendor == (u16)PCI_ANY_ID ||
- pci->pdev->vendor == quirk->chip_vendor) &&
- (quirk->chip_device == (u16)PCI_ANY_ID ||
- pci->pdev->device == quirk->chip_device)) {
- nvkm_info(subdev, "forcing default agp mode to %dX, "
- "use NvAGP=<mode> to override\n",
- quirk->mode);
- mode = quirk->mode;
- break;
- }
- quirk++;
- }
-
- /* apply quirk / user-specified mode */
- if (mode >= 1) {
- if (pci->agp.mode & 0x00000008)
- mode /= 4; /* AGPv3 */
- pci->agp.mode &= ~0x00000007;
- pci->agp.mode |= (mode & 0x7);
- } else
- if (mode == 0) {
- pci->agp.bridge = NULL;
- return;
- }
-
- /* fast writes appear to be broken on nv18, they make the card
- * lock up randomly.
- */
- if (device->chipset == 0x18)
- pci->agp.mode &= ~PCI_AGP_COMMAND_FW;
-
- pci->agp.mtrr = arch_phys_wc_add(pci->agp.base, pci->agp.size);
-}
-#endif
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/pci/agp.h b/drivers/gpu/drm/nouveau/nvkm/subdev/pci/agp.h
deleted file mode 100644
index ad4d3621d02b..000000000000
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/pci/agp.h
+++ /dev/null
@@ -1,19 +0,0 @@
-/* SPDX-License-Identifier: MIT */
-#include "priv.h"
-#if defined(CONFIG_AGP) || (defined(CONFIG_AGP_MODULE) && defined(MODULE))
-#ifndef __NVKM_PCI_AGP_H__
-#define __NVKM_PCI_AGP_H__
-
-void nvkm_agp_ctor(struct nvkm_pci *);
-void nvkm_agp_dtor(struct nvkm_pci *);
-void nvkm_agp_preinit(struct nvkm_pci *);
-int nvkm_agp_init(struct nvkm_pci *);
-void nvkm_agp_fini(struct nvkm_pci *);
-#endif
-#else
-static inline void nvkm_agp_ctor(struct nvkm_pci *pci) {}
-static inline void nvkm_agp_dtor(struct nvkm_pci *pci) {}
-static inline void nvkm_agp_preinit(struct nvkm_pci *pci) {}
-static inline int nvkm_agp_init(struct nvkm_pci *pci) { return -ENOSYS; }
-static inline void nvkm_agp_fini(struct nvkm_pci *pci) {}
-#endif
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/pci/base.c b/drivers/gpu/drm/nouveau/nvkm/subdev/pci/base.c
index ee2431a7804e..4f84fc1f2499 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/pci/base.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/pci/base.c
@@ -22,7 +22,6 @@
* Authors: Ben Skeggs <bskeggs@redhat.com>
*/
#include "priv.h"
-#include "agp.h"
#include <core/option.h>
#include <core/pci.h>
@@ -86,20 +85,12 @@ nvkm_pci_intr(int irq, void *arg)
static int
nvkm_pci_fini(struct nvkm_subdev *subdev, bool suspend)
{
- struct nvkm_pci *pci = nvkm_pci(subdev);
-
- if (pci->agp.bridge)
- nvkm_agp_fini(pci);
-
return 0;
}
static int
nvkm_pci_preinit(struct nvkm_subdev *subdev)
{
- struct nvkm_pci *pci = nvkm_pci(subdev);
- if (pci->agp.bridge)
- nvkm_agp_preinit(pci);
return 0;
}
@@ -128,15 +119,9 @@ static int
nvkm_pci_init(struct nvkm_subdev *subdev)
{
struct nvkm_pci *pci = nvkm_pci(subdev);
- int ret;
- if (pci->agp.bridge) {
- ret = nvkm_agp_init(pci);
- if (ret)
- return ret;
- } else if (pci_is_pcie(pci->pdev)) {
+ if (pci_is_pcie(pci->pdev))
nvkm_pcie_init(pci);
- }
if (pci->func->init)
pci->func->init(pci);
@@ -155,8 +140,6 @@ nvkm_pci_dtor(struct nvkm_subdev *subdev)
{
struct nvkm_pci *pci = nvkm_pci(subdev);
- nvkm_agp_dtor(pci);
-
if (pci->irq >= 0) {
/* freq_irq() will call the handler, we use pci->irq == -1
* to signal that it's been torn down and should be a noop.
@@ -196,9 +179,6 @@ nvkm_pci_new_(const struct nvkm_pci_func *func, struct nvkm_device *device,
pci->pcie.speed = -1;
pci->pcie.width = -1;
- if (device->type == NVKM_DEVICE_AGP)
- nvkm_agp_ctor(pci);
-
switch (pci->pdev->device & 0x0ff0) {
case 0x00f0:
case 0x02e0:
--
2.17.1
_______________________________________________
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amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx
^ permalink raw reply related [flat|nested] 81+ messages in thread
* [PATCH 3/3] drm/ttm: remove AGP support
2020-05-11 17:17 ` Christian König
(?)
@ 2020-05-11 17:17 ` Christian König
-1 siblings, 0 replies; 81+ messages in thread
From: Christian König @ 2020-05-11 17:17 UTC (permalink / raw)
To: dri-devel-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW,
amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW,
nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW
Not used any more.
Signed-off-by: Christian König <christian.koenig@amd.com>
---
drivers/gpu/drm/ttm/Makefile | 1 -
drivers/gpu/drm/ttm/ttm_agp_backend.c | 150 --------------------------
include/drm/ttm/ttm_set_memory.h | 44 --------
include/drm/ttm/ttm_tt.h | 22 ----
4 files changed, 217 deletions(-)
delete mode 100644 drivers/gpu/drm/ttm/ttm_agp_backend.c
diff --git a/drivers/gpu/drm/ttm/Makefile b/drivers/gpu/drm/ttm/Makefile
index caea2a099496..8a172122df1c 100644
--- a/drivers/gpu/drm/ttm/Makefile
+++ b/drivers/gpu/drm/ttm/Makefile
@@ -5,7 +5,6 @@
ttm-y := ttm_memory.o ttm_tt.o ttm_bo.o \
ttm_bo_util.o ttm_bo_vm.o ttm_module.o \
ttm_execbuf_util.o ttm_page_alloc.o ttm_bo_manager.o
-ttm-$(CONFIG_AGP) += ttm_agp_backend.o
ttm-$(CONFIG_DRM_TTM_DMA_PAGE_POOL) += ttm_page_alloc_dma.o
obj-$(CONFIG_DRM_TTM) += ttm.o
diff --git a/drivers/gpu/drm/ttm/ttm_agp_backend.c b/drivers/gpu/drm/ttm/ttm_agp_backend.c
deleted file mode 100644
index 6050dc846894..000000000000
--- a/drivers/gpu/drm/ttm/ttm_agp_backend.c
+++ /dev/null
@@ -1,150 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 OR MIT */
-/**************************************************************************
- *
- * Copyright (c) 2006-2009 VMware, Inc., Palo Alto, CA., USA
- * All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sub license, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- *
- * The above copyright notice and this permission notice (including the
- * next paragraph) shall be included in all copies or substantial portions
- * of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
- * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
- * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
- * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
- * USE OR OTHER DEALINGS IN THE SOFTWARE.
- *
- **************************************************************************/
-/*
- * Authors: Thomas Hellstrom <thellstrom-at-vmware-dot-com>
- * Keith Packard.
- */
-
-#define pr_fmt(fmt) "[TTM] " fmt
-
-#include <drm/ttm/ttm_module.h>
-#include <drm/ttm/ttm_bo_driver.h>
-#include <drm/ttm/ttm_page_alloc.h>
-#include <drm/ttm/ttm_placement.h>
-#include <linux/agp_backend.h>
-#include <linux/module.h>
-#include <linux/slab.h>
-#include <linux/io.h>
-#include <asm/agp.h>
-
-struct ttm_agp_backend {
- struct ttm_tt ttm;
- struct agp_memory *mem;
- struct agp_bridge_data *bridge;
-};
-
-static int ttm_agp_bind(struct ttm_tt *ttm, struct ttm_mem_reg *bo_mem)
-{
- struct ttm_agp_backend *agp_be = container_of(ttm, struct ttm_agp_backend, ttm);
- struct page *dummy_read_page = ttm_bo_glob.dummy_read_page;
- struct drm_mm_node *node = bo_mem->mm_node;
- struct agp_memory *mem;
- int ret, cached = (bo_mem->placement & TTM_PL_FLAG_CACHED);
- unsigned i;
-
- mem = agp_allocate_memory(agp_be->bridge, ttm->num_pages, AGP_USER_MEMORY);
- if (unlikely(mem == NULL))
- return -ENOMEM;
-
- mem->page_count = 0;
- for (i = 0; i < ttm->num_pages; i++) {
- struct page *page = ttm->pages[i];
-
- if (!page)
- page = dummy_read_page;
-
- mem->pages[mem->page_count++] = page;
- }
- agp_be->mem = mem;
-
- mem->is_flushed = 1;
- mem->type = (cached) ? AGP_USER_CACHED_MEMORY : AGP_USER_MEMORY;
-
- ret = agp_bind_memory(mem, node->start);
- if (ret)
- pr_err("AGP Bind memory failed\n");
-
- return ret;
-}
-
-static int ttm_agp_unbind(struct ttm_tt *ttm)
-{
- struct ttm_agp_backend *agp_be = container_of(ttm, struct ttm_agp_backend, ttm);
-
- if (agp_be->mem) {
- if (agp_be->mem->is_bound)
- return agp_unbind_memory(agp_be->mem);
- agp_free_memory(agp_be->mem);
- agp_be->mem = NULL;
- }
- return 0;
-}
-
-static void ttm_agp_destroy(struct ttm_tt *ttm)
-{
- struct ttm_agp_backend *agp_be = container_of(ttm, struct ttm_agp_backend, ttm);
-
- if (agp_be->mem)
- ttm_agp_unbind(ttm);
- ttm_tt_fini(ttm);
- kfree(agp_be);
-}
-
-static struct ttm_backend_func ttm_agp_func = {
- .bind = ttm_agp_bind,
- .unbind = ttm_agp_unbind,
- .destroy = ttm_agp_destroy,
-};
-
-struct ttm_tt *ttm_agp_tt_create(struct ttm_buffer_object *bo,
- struct agp_bridge_data *bridge,
- uint32_t page_flags)
-{
- struct ttm_agp_backend *agp_be;
-
- agp_be = kmalloc(sizeof(*agp_be), GFP_KERNEL);
- if (!agp_be)
- return NULL;
-
- agp_be->mem = NULL;
- agp_be->bridge = bridge;
- agp_be->ttm.func = &ttm_agp_func;
-
- if (ttm_tt_init(&agp_be->ttm, bo, page_flags)) {
- kfree(agp_be);
- return NULL;
- }
-
- return &agp_be->ttm;
-}
-EXPORT_SYMBOL(ttm_agp_tt_create);
-
-int ttm_agp_tt_populate(struct ttm_tt *ttm, struct ttm_operation_ctx *ctx)
-{
- if (ttm->state != tt_unpopulated)
- return 0;
-
- return ttm_pool_populate(ttm, ctx);
-}
-EXPORT_SYMBOL(ttm_agp_tt_populate);
-
-void ttm_agp_tt_unpopulate(struct ttm_tt *ttm)
-{
- ttm_pool_unpopulate(ttm);
-}
-EXPORT_SYMBOL(ttm_agp_tt_unpopulate);
diff --git a/include/drm/ttm/ttm_set_memory.h b/include/drm/ttm/ttm_set_memory.h
index 7c492b49e38c..3966655b72f1 100644
--- a/include/drm/ttm/ttm_set_memory.h
+++ b/include/drm/ttm/ttm_set_memory.h
@@ -71,48 +71,6 @@ static inline int ttm_set_pages_uc(struct page *page, int numpages)
#else /* for CONFIG_X86 */
-#if IS_ENABLED(CONFIG_AGP)
-
-#include <asm/agp.h>
-
-static inline int ttm_set_pages_array_wb(struct page **pages, int addrinarray)
-{
- int i;
-
- for (i = 0; i < addrinarray; i++)
- unmap_page_from_agp(pages[i]);
- return 0;
-}
-
-static inline int ttm_set_pages_array_wc(struct page **pages, int addrinarray)
-{
- int i;
-
- for (i = 0; i < addrinarray; i++)
- map_page_into_agp(pages[i]);
- return 0;
-}
-
-static inline int ttm_set_pages_array_uc(struct page **pages, int addrinarray)
-{
- int i;
-
- for (i = 0; i < addrinarray; i++)
- map_page_into_agp(pages[i]);
- return 0;
-}
-
-static inline int ttm_set_pages_wb(struct page *page, int numpages)
-{
- int i;
-
- for (i = 0; i < numpages; i++)
- unmap_page_from_agp(page++);
- return 0;
-}
-
-#else /* for CONFIG_AGP */
-
static inline int ttm_set_pages_array_wb(struct page **pages, int addrinarray)
{
return 0;
@@ -133,8 +91,6 @@ static inline int ttm_set_pages_wb(struct page *page, int numpages)
return 0;
}
-#endif /* for CONFIG_AGP */
-
static inline int ttm_set_pages_wc(struct page *page, int numpages)
{
return 0;
diff --git a/include/drm/ttm/ttm_tt.h b/include/drm/ttm/ttm_tt.h
index c0e928abf592..a57ede2e15ac 100644
--- a/include/drm/ttm/ttm_tt.h
+++ b/include/drm/ttm/ttm_tt.h
@@ -247,26 +247,4 @@ int ttm_tt_populate(struct ttm_tt *ttm, struct ttm_operation_ctx *ctx);
*/
void ttm_tt_unpopulate(struct ttm_tt *ttm);
-#if IS_ENABLED(CONFIG_AGP)
-#include <linux/agp_backend.h>
-
-/**
- * ttm_agp_tt_create
- *
- * @bo: Buffer object we allocate the ttm for.
- * @bridge: The agp bridge this device is sitting on.
- * @page_flags: Page flags as identified by TTM_PAGE_FLAG_XX flags.
- *
- *
- * Create a TTM backend that uses the indicated AGP bridge as an aperture
- * for TT memory. This function uses the linux agpgart interface to
- * bind and unbind memory backing a ttm_tt.
- */
-struct ttm_tt *ttm_agp_tt_create(struct ttm_buffer_object *bo,
- struct agp_bridge_data *bridge,
- uint32_t page_flags);
-int ttm_agp_tt_populate(struct ttm_tt *ttm, struct ttm_operation_ctx *ctx);
-void ttm_agp_tt_unpopulate(struct ttm_tt *ttm);
-#endif
-
#endif
--
2.17.1
_______________________________________________
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amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx
^ permalink raw reply related [flat|nested] 81+ messages in thread
* [PATCH 3/3] drm/ttm: remove AGP support
@ 2020-05-11 17:17 ` Christian König
0 siblings, 0 replies; 81+ messages in thread
From: Christian König @ 2020-05-11 17:17 UTC (permalink / raw)
To: dri-devel, amd-gfx, nouveau
Not used any more.
Signed-off-by: Christian König <christian.koenig@amd.com>
---
drivers/gpu/drm/ttm/Makefile | 1 -
drivers/gpu/drm/ttm/ttm_agp_backend.c | 150 --------------------------
include/drm/ttm/ttm_set_memory.h | 44 --------
include/drm/ttm/ttm_tt.h | 22 ----
4 files changed, 217 deletions(-)
delete mode 100644 drivers/gpu/drm/ttm/ttm_agp_backend.c
diff --git a/drivers/gpu/drm/ttm/Makefile b/drivers/gpu/drm/ttm/Makefile
index caea2a099496..8a172122df1c 100644
--- a/drivers/gpu/drm/ttm/Makefile
+++ b/drivers/gpu/drm/ttm/Makefile
@@ -5,7 +5,6 @@
ttm-y := ttm_memory.o ttm_tt.o ttm_bo.o \
ttm_bo_util.o ttm_bo_vm.o ttm_module.o \
ttm_execbuf_util.o ttm_page_alloc.o ttm_bo_manager.o
-ttm-$(CONFIG_AGP) += ttm_agp_backend.o
ttm-$(CONFIG_DRM_TTM_DMA_PAGE_POOL) += ttm_page_alloc_dma.o
obj-$(CONFIG_DRM_TTM) += ttm.o
diff --git a/drivers/gpu/drm/ttm/ttm_agp_backend.c b/drivers/gpu/drm/ttm/ttm_agp_backend.c
deleted file mode 100644
index 6050dc846894..000000000000
--- a/drivers/gpu/drm/ttm/ttm_agp_backend.c
+++ /dev/null
@@ -1,150 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 OR MIT */
-/**************************************************************************
- *
- * Copyright (c) 2006-2009 VMware, Inc., Palo Alto, CA., USA
- * All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sub license, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- *
- * The above copyright notice and this permission notice (including the
- * next paragraph) shall be included in all copies or substantial portions
- * of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
- * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
- * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
- * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
- * USE OR OTHER DEALINGS IN THE SOFTWARE.
- *
- **************************************************************************/
-/*
- * Authors: Thomas Hellstrom <thellstrom-at-vmware-dot-com>
- * Keith Packard.
- */
-
-#define pr_fmt(fmt) "[TTM] " fmt
-
-#include <drm/ttm/ttm_module.h>
-#include <drm/ttm/ttm_bo_driver.h>
-#include <drm/ttm/ttm_page_alloc.h>
-#include <drm/ttm/ttm_placement.h>
-#include <linux/agp_backend.h>
-#include <linux/module.h>
-#include <linux/slab.h>
-#include <linux/io.h>
-#include <asm/agp.h>
-
-struct ttm_agp_backend {
- struct ttm_tt ttm;
- struct agp_memory *mem;
- struct agp_bridge_data *bridge;
-};
-
-static int ttm_agp_bind(struct ttm_tt *ttm, struct ttm_mem_reg *bo_mem)
-{
- struct ttm_agp_backend *agp_be = container_of(ttm, struct ttm_agp_backend, ttm);
- struct page *dummy_read_page = ttm_bo_glob.dummy_read_page;
- struct drm_mm_node *node = bo_mem->mm_node;
- struct agp_memory *mem;
- int ret, cached = (bo_mem->placement & TTM_PL_FLAG_CACHED);
- unsigned i;
-
- mem = agp_allocate_memory(agp_be->bridge, ttm->num_pages, AGP_USER_MEMORY);
- if (unlikely(mem == NULL))
- return -ENOMEM;
-
- mem->page_count = 0;
- for (i = 0; i < ttm->num_pages; i++) {
- struct page *page = ttm->pages[i];
-
- if (!page)
- page = dummy_read_page;
-
- mem->pages[mem->page_count++] = page;
- }
- agp_be->mem = mem;
-
- mem->is_flushed = 1;
- mem->type = (cached) ? AGP_USER_CACHED_MEMORY : AGP_USER_MEMORY;
-
- ret = agp_bind_memory(mem, node->start);
- if (ret)
- pr_err("AGP Bind memory failed\n");
-
- return ret;
-}
-
-static int ttm_agp_unbind(struct ttm_tt *ttm)
-{
- struct ttm_agp_backend *agp_be = container_of(ttm, struct ttm_agp_backend, ttm);
-
- if (agp_be->mem) {
- if (agp_be->mem->is_bound)
- return agp_unbind_memory(agp_be->mem);
- agp_free_memory(agp_be->mem);
- agp_be->mem = NULL;
- }
- return 0;
-}
-
-static void ttm_agp_destroy(struct ttm_tt *ttm)
-{
- struct ttm_agp_backend *agp_be = container_of(ttm, struct ttm_agp_backend, ttm);
-
- if (agp_be->mem)
- ttm_agp_unbind(ttm);
- ttm_tt_fini(ttm);
- kfree(agp_be);
-}
-
-static struct ttm_backend_func ttm_agp_func = {
- .bind = ttm_agp_bind,
- .unbind = ttm_agp_unbind,
- .destroy = ttm_agp_destroy,
-};
-
-struct ttm_tt *ttm_agp_tt_create(struct ttm_buffer_object *bo,
- struct agp_bridge_data *bridge,
- uint32_t page_flags)
-{
- struct ttm_agp_backend *agp_be;
-
- agp_be = kmalloc(sizeof(*agp_be), GFP_KERNEL);
- if (!agp_be)
- return NULL;
-
- agp_be->mem = NULL;
- agp_be->bridge = bridge;
- agp_be->ttm.func = &ttm_agp_func;
-
- if (ttm_tt_init(&agp_be->ttm, bo, page_flags)) {
- kfree(agp_be);
- return NULL;
- }
-
- return &agp_be->ttm;
-}
-EXPORT_SYMBOL(ttm_agp_tt_create);
-
-int ttm_agp_tt_populate(struct ttm_tt *ttm, struct ttm_operation_ctx *ctx)
-{
- if (ttm->state != tt_unpopulated)
- return 0;
-
- return ttm_pool_populate(ttm, ctx);
-}
-EXPORT_SYMBOL(ttm_agp_tt_populate);
-
-void ttm_agp_tt_unpopulate(struct ttm_tt *ttm)
-{
- ttm_pool_unpopulate(ttm);
-}
-EXPORT_SYMBOL(ttm_agp_tt_unpopulate);
diff --git a/include/drm/ttm/ttm_set_memory.h b/include/drm/ttm/ttm_set_memory.h
index 7c492b49e38c..3966655b72f1 100644
--- a/include/drm/ttm/ttm_set_memory.h
+++ b/include/drm/ttm/ttm_set_memory.h
@@ -71,48 +71,6 @@ static inline int ttm_set_pages_uc(struct page *page, int numpages)
#else /* for CONFIG_X86 */
-#if IS_ENABLED(CONFIG_AGP)
-
-#include <asm/agp.h>
-
-static inline int ttm_set_pages_array_wb(struct page **pages, int addrinarray)
-{
- int i;
-
- for (i = 0; i < addrinarray; i++)
- unmap_page_from_agp(pages[i]);
- return 0;
-}
-
-static inline int ttm_set_pages_array_wc(struct page **pages, int addrinarray)
-{
- int i;
-
- for (i = 0; i < addrinarray; i++)
- map_page_into_agp(pages[i]);
- return 0;
-}
-
-static inline int ttm_set_pages_array_uc(struct page **pages, int addrinarray)
-{
- int i;
-
- for (i = 0; i < addrinarray; i++)
- map_page_into_agp(pages[i]);
- return 0;
-}
-
-static inline int ttm_set_pages_wb(struct page *page, int numpages)
-{
- int i;
-
- for (i = 0; i < numpages; i++)
- unmap_page_from_agp(page++);
- return 0;
-}
-
-#else /* for CONFIG_AGP */
-
static inline int ttm_set_pages_array_wb(struct page **pages, int addrinarray)
{
return 0;
@@ -133,8 +91,6 @@ static inline int ttm_set_pages_wb(struct page *page, int numpages)
return 0;
}
-#endif /* for CONFIG_AGP */
-
static inline int ttm_set_pages_wc(struct page *page, int numpages)
{
return 0;
diff --git a/include/drm/ttm/ttm_tt.h b/include/drm/ttm/ttm_tt.h
index c0e928abf592..a57ede2e15ac 100644
--- a/include/drm/ttm/ttm_tt.h
+++ b/include/drm/ttm/ttm_tt.h
@@ -247,26 +247,4 @@ int ttm_tt_populate(struct ttm_tt *ttm, struct ttm_operation_ctx *ctx);
*/
void ttm_tt_unpopulate(struct ttm_tt *ttm);
-#if IS_ENABLED(CONFIG_AGP)
-#include <linux/agp_backend.h>
-
-/**
- * ttm_agp_tt_create
- *
- * @bo: Buffer object we allocate the ttm for.
- * @bridge: The agp bridge this device is sitting on.
- * @page_flags: Page flags as identified by TTM_PAGE_FLAG_XX flags.
- *
- *
- * Create a TTM backend that uses the indicated AGP bridge as an aperture
- * for TT memory. This function uses the linux agpgart interface to
- * bind and unbind memory backing a ttm_tt.
- */
-struct ttm_tt *ttm_agp_tt_create(struct ttm_buffer_object *bo,
- struct agp_bridge_data *bridge,
- uint32_t page_flags);
-int ttm_agp_tt_populate(struct ttm_tt *ttm, struct ttm_operation_ctx *ctx);
-void ttm_agp_tt_unpopulate(struct ttm_tt *ttm);
-#endif
-
#endif
--
2.17.1
_______________________________________________
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dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply related [flat|nested] 81+ messages in thread
* [PATCH 3/3] drm/ttm: remove AGP support
@ 2020-05-11 17:17 ` Christian König
0 siblings, 0 replies; 81+ messages in thread
From: Christian König @ 2020-05-11 17:17 UTC (permalink / raw)
To: dri-devel, amd-gfx, nouveau
Not used any more.
Signed-off-by: Christian König <christian.koenig@amd.com>
---
drivers/gpu/drm/ttm/Makefile | 1 -
drivers/gpu/drm/ttm/ttm_agp_backend.c | 150 --------------------------
include/drm/ttm/ttm_set_memory.h | 44 --------
include/drm/ttm/ttm_tt.h | 22 ----
4 files changed, 217 deletions(-)
delete mode 100644 drivers/gpu/drm/ttm/ttm_agp_backend.c
diff --git a/drivers/gpu/drm/ttm/Makefile b/drivers/gpu/drm/ttm/Makefile
index caea2a099496..8a172122df1c 100644
--- a/drivers/gpu/drm/ttm/Makefile
+++ b/drivers/gpu/drm/ttm/Makefile
@@ -5,7 +5,6 @@
ttm-y := ttm_memory.o ttm_tt.o ttm_bo.o \
ttm_bo_util.o ttm_bo_vm.o ttm_module.o \
ttm_execbuf_util.o ttm_page_alloc.o ttm_bo_manager.o
-ttm-$(CONFIG_AGP) += ttm_agp_backend.o
ttm-$(CONFIG_DRM_TTM_DMA_PAGE_POOL) += ttm_page_alloc_dma.o
obj-$(CONFIG_DRM_TTM) += ttm.o
diff --git a/drivers/gpu/drm/ttm/ttm_agp_backend.c b/drivers/gpu/drm/ttm/ttm_agp_backend.c
deleted file mode 100644
index 6050dc846894..000000000000
--- a/drivers/gpu/drm/ttm/ttm_agp_backend.c
+++ /dev/null
@@ -1,150 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 OR MIT */
-/**************************************************************************
- *
- * Copyright (c) 2006-2009 VMware, Inc., Palo Alto, CA., USA
- * All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sub license, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- *
- * The above copyright notice and this permission notice (including the
- * next paragraph) shall be included in all copies or substantial portions
- * of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
- * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
- * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
- * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
- * USE OR OTHER DEALINGS IN THE SOFTWARE.
- *
- **************************************************************************/
-/*
- * Authors: Thomas Hellstrom <thellstrom-at-vmware-dot-com>
- * Keith Packard.
- */
-
-#define pr_fmt(fmt) "[TTM] " fmt
-
-#include <drm/ttm/ttm_module.h>
-#include <drm/ttm/ttm_bo_driver.h>
-#include <drm/ttm/ttm_page_alloc.h>
-#include <drm/ttm/ttm_placement.h>
-#include <linux/agp_backend.h>
-#include <linux/module.h>
-#include <linux/slab.h>
-#include <linux/io.h>
-#include <asm/agp.h>
-
-struct ttm_agp_backend {
- struct ttm_tt ttm;
- struct agp_memory *mem;
- struct agp_bridge_data *bridge;
-};
-
-static int ttm_agp_bind(struct ttm_tt *ttm, struct ttm_mem_reg *bo_mem)
-{
- struct ttm_agp_backend *agp_be = container_of(ttm, struct ttm_agp_backend, ttm);
- struct page *dummy_read_page = ttm_bo_glob.dummy_read_page;
- struct drm_mm_node *node = bo_mem->mm_node;
- struct agp_memory *mem;
- int ret, cached = (bo_mem->placement & TTM_PL_FLAG_CACHED);
- unsigned i;
-
- mem = agp_allocate_memory(agp_be->bridge, ttm->num_pages, AGP_USER_MEMORY);
- if (unlikely(mem == NULL))
- return -ENOMEM;
-
- mem->page_count = 0;
- for (i = 0; i < ttm->num_pages; i++) {
- struct page *page = ttm->pages[i];
-
- if (!page)
- page = dummy_read_page;
-
- mem->pages[mem->page_count++] = page;
- }
- agp_be->mem = mem;
-
- mem->is_flushed = 1;
- mem->type = (cached) ? AGP_USER_CACHED_MEMORY : AGP_USER_MEMORY;
-
- ret = agp_bind_memory(mem, node->start);
- if (ret)
- pr_err("AGP Bind memory failed\n");
-
- return ret;
-}
-
-static int ttm_agp_unbind(struct ttm_tt *ttm)
-{
- struct ttm_agp_backend *agp_be = container_of(ttm, struct ttm_agp_backend, ttm);
-
- if (agp_be->mem) {
- if (agp_be->mem->is_bound)
- return agp_unbind_memory(agp_be->mem);
- agp_free_memory(agp_be->mem);
- agp_be->mem = NULL;
- }
- return 0;
-}
-
-static void ttm_agp_destroy(struct ttm_tt *ttm)
-{
- struct ttm_agp_backend *agp_be = container_of(ttm, struct ttm_agp_backend, ttm);
-
- if (agp_be->mem)
- ttm_agp_unbind(ttm);
- ttm_tt_fini(ttm);
- kfree(agp_be);
-}
-
-static struct ttm_backend_func ttm_agp_func = {
- .bind = ttm_agp_bind,
- .unbind = ttm_agp_unbind,
- .destroy = ttm_agp_destroy,
-};
-
-struct ttm_tt *ttm_agp_tt_create(struct ttm_buffer_object *bo,
- struct agp_bridge_data *bridge,
- uint32_t page_flags)
-{
- struct ttm_agp_backend *agp_be;
-
- agp_be = kmalloc(sizeof(*agp_be), GFP_KERNEL);
- if (!agp_be)
- return NULL;
-
- agp_be->mem = NULL;
- agp_be->bridge = bridge;
- agp_be->ttm.func = &ttm_agp_func;
-
- if (ttm_tt_init(&agp_be->ttm, bo, page_flags)) {
- kfree(agp_be);
- return NULL;
- }
-
- return &agp_be->ttm;
-}
-EXPORT_SYMBOL(ttm_agp_tt_create);
-
-int ttm_agp_tt_populate(struct ttm_tt *ttm, struct ttm_operation_ctx *ctx)
-{
- if (ttm->state != tt_unpopulated)
- return 0;
-
- return ttm_pool_populate(ttm, ctx);
-}
-EXPORT_SYMBOL(ttm_agp_tt_populate);
-
-void ttm_agp_tt_unpopulate(struct ttm_tt *ttm)
-{
- ttm_pool_unpopulate(ttm);
-}
-EXPORT_SYMBOL(ttm_agp_tt_unpopulate);
diff --git a/include/drm/ttm/ttm_set_memory.h b/include/drm/ttm/ttm_set_memory.h
index 7c492b49e38c..3966655b72f1 100644
--- a/include/drm/ttm/ttm_set_memory.h
+++ b/include/drm/ttm/ttm_set_memory.h
@@ -71,48 +71,6 @@ static inline int ttm_set_pages_uc(struct page *page, int numpages)
#else /* for CONFIG_X86 */
-#if IS_ENABLED(CONFIG_AGP)
-
-#include <asm/agp.h>
-
-static inline int ttm_set_pages_array_wb(struct page **pages, int addrinarray)
-{
- int i;
-
- for (i = 0; i < addrinarray; i++)
- unmap_page_from_agp(pages[i]);
- return 0;
-}
-
-static inline int ttm_set_pages_array_wc(struct page **pages, int addrinarray)
-{
- int i;
-
- for (i = 0; i < addrinarray; i++)
- map_page_into_agp(pages[i]);
- return 0;
-}
-
-static inline int ttm_set_pages_array_uc(struct page **pages, int addrinarray)
-{
- int i;
-
- for (i = 0; i < addrinarray; i++)
- map_page_into_agp(pages[i]);
- return 0;
-}
-
-static inline int ttm_set_pages_wb(struct page *page, int numpages)
-{
- int i;
-
- for (i = 0; i < numpages; i++)
- unmap_page_from_agp(page++);
- return 0;
-}
-
-#else /* for CONFIG_AGP */
-
static inline int ttm_set_pages_array_wb(struct page **pages, int addrinarray)
{
return 0;
@@ -133,8 +91,6 @@ static inline int ttm_set_pages_wb(struct page *page, int numpages)
return 0;
}
-#endif /* for CONFIG_AGP */
-
static inline int ttm_set_pages_wc(struct page *page, int numpages)
{
return 0;
diff --git a/include/drm/ttm/ttm_tt.h b/include/drm/ttm/ttm_tt.h
index c0e928abf592..a57ede2e15ac 100644
--- a/include/drm/ttm/ttm_tt.h
+++ b/include/drm/ttm/ttm_tt.h
@@ -247,26 +247,4 @@ int ttm_tt_populate(struct ttm_tt *ttm, struct ttm_operation_ctx *ctx);
*/
void ttm_tt_unpopulate(struct ttm_tt *ttm);
-#if IS_ENABLED(CONFIG_AGP)
-#include <linux/agp_backend.h>
-
-/**
- * ttm_agp_tt_create
- *
- * @bo: Buffer object we allocate the ttm for.
- * @bridge: The agp bridge this device is sitting on.
- * @page_flags: Page flags as identified by TTM_PAGE_FLAG_XX flags.
- *
- *
- * Create a TTM backend that uses the indicated AGP bridge as an aperture
- * for TT memory. This function uses the linux agpgart interface to
- * bind and unbind memory backing a ttm_tt.
- */
-struct ttm_tt *ttm_agp_tt_create(struct ttm_buffer_object *bo,
- struct agp_bridge_data *bridge,
- uint32_t page_flags);
-int ttm_agp_tt_populate(struct ttm_tt *ttm, struct ttm_operation_ctx *ctx);
-void ttm_agp_tt_unpopulate(struct ttm_tt *ttm);
-#endif
-
#endif
--
2.17.1
_______________________________________________
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amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx
^ permalink raw reply related [flat|nested] 81+ messages in thread
* Re: [PATCH 1/3] drm/radeon: remove AGP support
2020-05-11 17:17 ` Christian König
(?)
@ 2020-05-11 20:12 ` Alex Deucher
-1 siblings, 0 replies; 81+ messages in thread
From: Alex Deucher @ 2020-05-11 20:12 UTC (permalink / raw)
To: Christian König; +Cc: nouveau, amd-gfx list, Maling list - DRI developers
On Mon, May 11, 2020 at 1:17 PM Christian König
<ckoenig.leichtzumerken@gmail.com> wrote:
>
> AGP is deprecated for 10+ years now and not used any more on modern hardware.
>
> Old hardware should continue to work in PCI mode.
Might want to clarify that there is no loss of functionality here.
Something like:
"There is no loss of functionality here. GPUs will continue to
function. This just drops the use of the AGP MMU in the chipset in
favor of the MMU on the device which has proven to be much more
reliable. Due to its unreliability, AGP support has been disabled on
PowerPC for years already so there is no change on PowerPC."
With that updated, patches 1, 3:
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
patch 2:
Acked-by: Alex Deucher <alexander.deucher@amd.com>
>
> Signed-off-by: Christian König <christian.koenig@amd.com>
> ---
> drivers/gpu/drm/radeon/Makefile | 4 +-
> drivers/gpu/drm/radeon/evergreen.c | 7 -
> drivers/gpu/drm/radeon/r100.c | 10 +-
> drivers/gpu/drm/radeon/r300.c | 9 -
> drivers/gpu/drm/radeon/r420.c | 9 -
> drivers/gpu/drm/radeon/r520.c | 8 -
> drivers/gpu/drm/radeon/r600.c | 6 -
> drivers/gpu/drm/radeon/radeon.h | 11 -
> drivers/gpu/drm/radeon/radeon_agp.c | 290 -------------------------
> drivers/gpu/drm/radeon/radeon_device.c | 23 +-
> drivers/gpu/drm/radeon/radeon_drv.c | 9 -
> drivers/gpu/drm/radeon/radeon_ttm.c | 39 ----
> drivers/gpu/drm/radeon/rv515.c | 9 -
> drivers/gpu/drm/radeon/rv770.c | 7 -
> 14 files changed, 4 insertions(+), 437 deletions(-)
> delete mode 100644 drivers/gpu/drm/radeon/radeon_agp.c
>
> diff --git a/drivers/gpu/drm/radeon/Makefile b/drivers/gpu/drm/radeon/Makefile
> index c693b2ca0329..77429cfd303e 100644
> --- a/drivers/gpu/drm/radeon/Makefile
> +++ b/drivers/gpu/drm/radeon/Makefile
> @@ -61,8 +61,8 @@ radeon-y := radeon_drv.o
>
> # add KMS driver
> radeon-y += radeon_device.o radeon_asic.o radeon_kms.o \
> - radeon_atombios.o radeon_agp.o atombios_crtc.o radeon_combios.o \
> - atom.o radeon_fence.o radeon_ttm.o radeon_object.o radeon_gart.o \
> + radeon_atombios.o atombios_crtc.o radeon_combios.o atom.o \
> + radeon_fence.o radeon_ttm.o radeon_object.o radeon_gart.o \
> radeon_legacy_crtc.o radeon_legacy_encoders.o radeon_connectors.o \
> radeon_encoders.o radeon_display.o radeon_cursor.o radeon_i2c.o \
> radeon_clocks.o radeon_fb.o radeon_gem.o radeon_ring.o radeon_irq_kms.o \
> diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c
> index 14d90dc376e7..66b3d9a2c6dd 100644
> --- a/drivers/gpu/drm/radeon/evergreen.c
> +++ b/drivers/gpu/drm/radeon/evergreen.c
> @@ -5216,12 +5216,6 @@ int evergreen_init(struct radeon_device *rdev)
> r = radeon_fence_driver_init(rdev);
> if (r)
> return r;
> - /* initialize AGP */
> - if (rdev->flags & RADEON_IS_AGP) {
> - r = radeon_agp_init(rdev);
> - if (r)
> - radeon_agp_disable(rdev);
> - }
> /* initialize memory controller */
> r = evergreen_mc_init(rdev);
> if (r)
> @@ -5315,7 +5309,6 @@ void evergreen_fini(struct radeon_device *rdev)
> r600_vram_scratch_fini(rdev);
> radeon_gem_fini(rdev);
> radeon_fence_driver_fini(rdev);
> - radeon_agp_fini(rdev);
> radeon_bo_fini(rdev);
> radeon_atombios_fini(rdev);
> kfree(rdev->bios);
> diff --git a/drivers/gpu/drm/radeon/r100.c b/drivers/gpu/drm/radeon/r100.c
> index 24c8db673931..320b1b40a30a 100644
> --- a/drivers/gpu/drm/radeon/r100.c
> +++ b/drivers/gpu/drm/radeon/r100.c
> @@ -3382,7 +3382,7 @@ void r100_bandwidth_update(struct radeon_device *rdev)
>
> if (rdev->flags & RADEON_IS_AGP) {
> fixed20_12 agpmode_ff;
> - agpmode_ff.full = dfixed_const(radeon_agpmode);
> + agpmode_ff.full = dfixed_const(0);
> temp_ff.full = dfixed_const_666(16);
> sclk_eff_ff.full -= dfixed_mul(agpmode_ff, temp_ff);
> }
> @@ -3992,7 +3992,6 @@ void r100_fini(struct radeon_device *rdev)
> radeon_gem_fini(rdev);
> if (rdev->flags & RADEON_IS_PCI)
> r100_pci_gart_fini(rdev);
> - radeon_agp_fini(rdev);
> radeon_irq_kms_fini(rdev);
> radeon_fence_driver_fini(rdev);
> radeon_bo_fini(rdev);
> @@ -4068,13 +4067,6 @@ int r100_init(struct radeon_device *rdev)
> r100_errata(rdev);
> /* Initialize clocks */
> radeon_get_clock_info(rdev->ddev);
> - /* initialize AGP */
> - if (rdev->flags & RADEON_IS_AGP) {
> - r = radeon_agp_init(rdev);
> - if (r) {
> - radeon_agp_disable(rdev);
> - }
> - }
> /* initialize VRAM */
> r100_mc_init(rdev);
> /* Fence driver */
> diff --git a/drivers/gpu/drm/radeon/r300.c b/drivers/gpu/drm/radeon/r300.c
> index 3b7ead5be5bf..afd688629cf9 100644
> --- a/drivers/gpu/drm/radeon/r300.c
> +++ b/drivers/gpu/drm/radeon/r300.c
> @@ -1498,7 +1498,6 @@ void r300_fini(struct radeon_device *rdev)
> rv370_pcie_gart_fini(rdev);
> if (rdev->flags & RADEON_IS_PCI)
> r100_pci_gart_fini(rdev);
> - radeon_agp_fini(rdev);
> radeon_irq_kms_fini(rdev);
> radeon_fence_driver_fini(rdev);
> radeon_bo_fini(rdev);
> @@ -1547,13 +1546,6 @@ int r300_init(struct radeon_device *rdev)
> r300_errata(rdev);
> /* Initialize clocks */
> radeon_get_clock_info(rdev->ddev);
> - /* initialize AGP */
> - if (rdev->flags & RADEON_IS_AGP) {
> - r = radeon_agp_init(rdev);
> - if (r) {
> - radeon_agp_disable(rdev);
> - }
> - }
> /* initialize memory controller */
> r300_mc_init(rdev);
> /* Fence driver */
> @@ -1592,7 +1584,6 @@ int r300_init(struct radeon_device *rdev)
> rv370_pcie_gart_fini(rdev);
> if (rdev->flags & RADEON_IS_PCI)
> r100_pci_gart_fini(rdev);
> - radeon_agp_fini(rdev);
> rdev->accel_working = false;
> }
> return 0;
> diff --git a/drivers/gpu/drm/radeon/r420.c b/drivers/gpu/drm/radeon/r420.c
> index 1d4c04e0a449..3cb337dacd56 100644
> --- a/drivers/gpu/drm/radeon/r420.c
> +++ b/drivers/gpu/drm/radeon/r420.c
> @@ -366,7 +366,6 @@ void r420_fini(struct radeon_device *rdev)
> rv370_pcie_gart_fini(rdev);
> if (rdev->flags & RADEON_IS_PCI)
> r100_pci_gart_fini(rdev);
> - radeon_agp_fini(rdev);
> radeon_irq_kms_fini(rdev);
> radeon_fence_driver_fini(rdev);
> radeon_bo_fini(rdev);
> @@ -419,13 +418,6 @@ int r420_init(struct radeon_device *rdev)
>
> /* Initialize clocks */
> radeon_get_clock_info(rdev->ddev);
> - /* initialize AGP */
> - if (rdev->flags & RADEON_IS_AGP) {
> - r = radeon_agp_init(rdev);
> - if (r) {
> - radeon_agp_disable(rdev);
> - }
> - }
> /* initialize memory controller */
> r300_mc_init(rdev);
> r420_debugfs(rdev);
> @@ -470,7 +462,6 @@ int r420_init(struct radeon_device *rdev)
> rv370_pcie_gart_fini(rdev);
> if (rdev->flags & RADEON_IS_PCI)
> r100_pci_gart_fini(rdev);
> - radeon_agp_fini(rdev);
> rdev->accel_working = false;
> }
> return 0;
> diff --git a/drivers/gpu/drm/radeon/r520.c b/drivers/gpu/drm/radeon/r520.c
> index fc78e64ae727..76ac87d72406 100644
> --- a/drivers/gpu/drm/radeon/r520.c
> +++ b/drivers/gpu/drm/radeon/r520.c
> @@ -288,13 +288,6 @@ int r520_init(struct radeon_device *rdev)
> }
> /* Initialize clocks */
> radeon_get_clock_info(rdev->ddev);
> - /* initialize AGP */
> - if (rdev->flags & RADEON_IS_AGP) {
> - r = radeon_agp_init(rdev);
> - if (r) {
> - radeon_agp_disable(rdev);
> - }
> - }
> /* initialize memory controller */
> r520_mc_init(rdev);
> rv515_debugfs(rdev);
> @@ -324,7 +317,6 @@ int r520_init(struct radeon_device *rdev)
> radeon_ib_pool_fini(rdev);
> radeon_irq_kms_fini(rdev);
> rv370_pcie_gart_fini(rdev);
> - radeon_agp_fini(rdev);
> rdev->accel_working = false;
> }
> return 0;
> diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c
> index d9a33ca768f3..4a5ac15893c2 100644
> --- a/drivers/gpu/drm/radeon/r600.c
> +++ b/drivers/gpu/drm/radeon/r600.c
> @@ -3286,11 +3286,6 @@ int r600_init(struct radeon_device *rdev)
> r = radeon_fence_driver_init(rdev);
> if (r)
> return r;
> - if (rdev->flags & RADEON_IS_AGP) {
> - r = radeon_agp_init(rdev);
> - if (r)
> - radeon_agp_disable(rdev);
> - }
> r = r600_mc_init(rdev);
> if (r)
> return r;
> @@ -3353,7 +3348,6 @@ void r600_fini(struct radeon_device *rdev)
> radeon_irq_kms_fini(rdev);
> r600_pcie_gart_fini(rdev);
> r600_vram_scratch_fini(rdev);
> - radeon_agp_fini(rdev);
> radeon_gem_fini(rdev);
> radeon_fence_driver_fini(rdev);
> radeon_bo_fini(rdev);
> diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h
> index 30e32adc1fc6..377e1403b134 100644
> --- a/drivers/gpu/drm/radeon/radeon.h
> +++ b/drivers/gpu/drm/radeon/radeon.h
> @@ -91,7 +91,6 @@ extern int radeon_no_wb;
> extern int radeon_modeset;
> extern int radeon_dynclks;
> extern int radeon_r4xx_atom;
> -extern int radeon_agpmode;
> extern int radeon_vram_limit;
> extern int radeon_gart_size;
> extern int radeon_benchmarking;
> @@ -1116,16 +1115,6 @@ typedef int (*radeon_packet0_check_t)(struct radeon_cs_parser *p,
> typedef int (*radeon_packet3_check_t)(struct radeon_cs_parser *p,
> struct radeon_cs_packet *pkt);
>
> -
> -/*
> - * AGP
> - */
> -int radeon_agp_init(struct radeon_device *rdev);
> -void radeon_agp_resume(struct radeon_device *rdev);
> -void radeon_agp_suspend(struct radeon_device *rdev);
> -void radeon_agp_fini(struct radeon_device *rdev);
> -
> -
> /*
> * Writeback
> */
> diff --git a/drivers/gpu/drm/radeon/radeon_agp.c b/drivers/gpu/drm/radeon/radeon_agp.c
> deleted file mode 100644
> index 0aca7bdf54c7..000000000000
> --- a/drivers/gpu/drm/radeon/radeon_agp.c
> +++ /dev/null
> @@ -1,290 +0,0 @@
> -/*
> - * Copyright 2008 Red Hat Inc.
> - * Copyright 2009 Jerome Glisse.
> - *
> - * Permission is hereby granted, free of charge, to any person obtaining a
> - * copy of this software and associated documentation files (the "Software"),
> - * to deal in the Software without restriction, including without limitation
> - * the rights to use, copy, modify, merge, publish, distribute, sublicense,
> - * and/or sell copies of the Software, and to permit persons to whom the
> - * Software is furnished to do so, subject to the following conditions:
> - *
> - * The above copyright notice and this permission notice shall be included in
> - * all copies or substantial portions of the Software.
> - *
> - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
> - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
> - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
> - * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
> - * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
> - * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
> - * OTHER DEALINGS IN THE SOFTWARE.
> - *
> - * Authors:
> - * Dave Airlie
> - * Jerome Glisse <glisse@freedesktop.org>
> - */
> -
> -#include <linux/pci.h>
> -
> -#include <drm/drm_agpsupport.h>
> -#include <drm/drm_device.h>
> -#include <drm/radeon_drm.h>
> -
> -#include "radeon.h"
> -
> -#if IS_ENABLED(CONFIG_AGP)
> -
> -struct radeon_agpmode_quirk {
> - u32 hostbridge_vendor;
> - u32 hostbridge_device;
> - u32 chip_vendor;
> - u32 chip_device;
> - u32 subsys_vendor;
> - u32 subsys_device;
> - u32 default_mode;
> -};
> -
> -static struct radeon_agpmode_quirk radeon_agpmode_quirk_list[] = {
> - /* Intel E7505 Memory Controller Hub / RV350 AR [Radeon 9600XT] Needs AGPMode 4 (deb #515326) */
> - { PCI_VENDOR_ID_INTEL, 0x2550, PCI_VENDOR_ID_ATI, 0x4152, 0x1458, 0x4038, 4},
> - /* Intel 82865G/PE/P DRAM Controller/Host-Hub / Mobility 9800 Needs AGPMode 4 (deb #462590) */
> - { PCI_VENDOR_ID_INTEL, 0x2570, PCI_VENDOR_ID_ATI, 0x4a4e, PCI_VENDOR_ID_DELL, 0x5106, 4},
> - /* Intel 82865G/PE/P DRAM Controller/Host-Hub / RV280 [Radeon 9200 SE] Needs AGPMode 4 (lp #300304) */
> - { PCI_VENDOR_ID_INTEL, 0x2570, PCI_VENDOR_ID_ATI, 0x5964,
> - 0x148c, 0x2073, 4},
> - /* Intel 82855PM Processor to I/O Controller / Mobility M6 LY Needs AGPMode 1 (deb #467235) */
> - { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4c59,
> - PCI_VENDOR_ID_IBM, 0x052f, 1},
> - /* Intel 82855PM host bridge / Mobility 9600 M10 RV350 Needs AGPMode 1 (lp #195051) */
> - { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4e50,
> - PCI_VENDOR_ID_IBM, 0x0550, 1},
> - /* Intel 82855PM host bridge / RV250/M9 GL [Mobility FireGL 9000/Radeon 9000] needs AGPMode 1 (Thinkpad T40p) */
> - { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4c66,
> - PCI_VENDOR_ID_IBM, 0x054d, 1},
> - /* Intel 82855PM host bridge / Mobility M7 needs AGPMode 1 */
> - { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4c57,
> - PCI_VENDOR_ID_IBM, 0x0530, 1},
> - /* Intel 82855PM host bridge / FireGL Mobility T2 RV350 Needs AGPMode 2 (fdo #20647) */
> - { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4e54,
> - PCI_VENDOR_ID_IBM, 0x054f, 2},
> - /* Intel 82855PM host bridge / Mobility M9+ / VaioPCG-V505DX Needs AGPMode 2 (fdo #17928) */
> - { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x5c61,
> - PCI_VENDOR_ID_SONY, 0x816b, 2},
> - /* Intel 82855PM Processor to I/O Controller / Mobility M9+ Needs AGPMode 8 (phoronix forum) */
> - { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x5c61,
> - PCI_VENDOR_ID_SONY, 0x8195, 8},
> - /* Intel 82830 830 Chipset Host Bridge / Mobility M6 LY Needs AGPMode 2 (fdo #17360)*/
> - { PCI_VENDOR_ID_INTEL, 0x3575, PCI_VENDOR_ID_ATI, 0x4c59,
> - PCI_VENDOR_ID_DELL, 0x00e3, 2},
> - /* Intel 82852/82855 host bridge / Mobility FireGL 9000 RV250 Needs AGPMode 1 (lp #296617) */
> - { PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4c66,
> - PCI_VENDOR_ID_DELL, 0x0149, 1},
> - /* Intel 82855PM host bridge / Mobility FireGL 9000 RV250 Needs AGPMode 1 for suspend/resume */
> - { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4c66,
> - PCI_VENDOR_ID_IBM, 0x0531, 1},
> - /* Intel 82852/82855 host bridge / Mobility 9600 M10 RV350 Needs AGPMode 1 (deb #467460) */
> - { PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4e50,
> - 0x1025, 0x0061, 1},
> - /* Intel 82852/82855 host bridge / Mobility 9600 M10 RV350 Needs AGPMode 1 (lp #203007) */
> - { PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4e50,
> - 0x1025, 0x0064, 1},
> - /* Intel 82852/82855 host bridge / Mobility 9600 M10 RV350 Needs AGPMode 1 (lp #141551) */
> - { PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4e50,
> - PCI_VENDOR_ID_ASUSTEK, 0x1942, 1},
> - /* Intel 82852/82855 host bridge / Mobility 9600/9700 Needs AGPMode 1 (deb #510208) */
> - { PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4e50,
> - 0x10cf, 0x127f, 1},
> - /* ASRock K7VT4A+ AGP 8x / ATI Radeon 9250 AGP Needs AGPMode 4 (lp #133192) */
> - { 0x1849, 0x3189, PCI_VENDOR_ID_ATI, 0x5960,
> - 0x1787, 0x5960, 4},
> - /* VIA K8M800 Host Bridge / RV280 [Radeon 9200 PRO] Needs AGPMode 4 (fdo #12544) */
> - { PCI_VENDOR_ID_VIA, 0x0204, PCI_VENDOR_ID_ATI, 0x5960,
> - 0x17af, 0x2020, 4},
> - /* VIA KT880 Host Bridge / RV350 [Radeon 9550] Needs AGPMode 4 (fdo #19981) */
> - { PCI_VENDOR_ID_VIA, 0x0269, PCI_VENDOR_ID_ATI, 0x4153,
> - PCI_VENDOR_ID_ASUSTEK, 0x003c, 4},
> - /* VIA VT8363 Host Bridge / R200 QL [Radeon 8500] Needs AGPMode 2 (lp #141551) */
> - { PCI_VENDOR_ID_VIA, 0x0305, PCI_VENDOR_ID_ATI, 0x514c,
> - PCI_VENDOR_ID_ATI, 0x013a, 2},
> - /* VIA VT82C693A Host Bridge / RV280 [Radeon 9200 PRO] Needs AGPMode 2 (deb #515512) */
> - { PCI_VENDOR_ID_VIA, 0x0691, PCI_VENDOR_ID_ATI, 0x5960,
> - PCI_VENDOR_ID_ASUSTEK, 0x004c, 2},
> - /* VIA VT82C693A Host Bridge / RV280 [Radeon 9200 PRO] Needs AGPMode 2 */
> - { PCI_VENDOR_ID_VIA, 0x0691, PCI_VENDOR_ID_ATI, 0x5960,
> - PCI_VENDOR_ID_ASUSTEK, 0x0054, 2},
> - /* VIA VT8377 Host Bridge / R200 QM [Radeon 9100] Needs AGPMode 4 (deb #461144) */
> - { PCI_VENDOR_ID_VIA, 0x3189, PCI_VENDOR_ID_ATI, 0x514d,
> - 0x174b, 0x7149, 4},
> - /* VIA VT8377 Host Bridge / RV280 [Radeon 9200 PRO] Needs AGPMode 4 (lp #312693) */
> - { PCI_VENDOR_ID_VIA, 0x3189, PCI_VENDOR_ID_ATI, 0x5960,
> - 0x1462, 0x0380, 4},
> - /* VIA VT8377 Host Bridge / RV280 Needs AGPMode 4 (ati ML) */
> - { PCI_VENDOR_ID_VIA, 0x3189, PCI_VENDOR_ID_ATI, 0x5964,
> - 0x148c, 0x2073, 4},
> - /* ATI Host Bridge / RV280 [M9+] Needs AGPMode 1 (phoronix forum) */
> - { PCI_VENDOR_ID_ATI, 0xcbb2, PCI_VENDOR_ID_ATI, 0x5c61,
> - PCI_VENDOR_ID_SONY, 0x8175, 1},
> - { 0, 0, 0, 0, 0, 0, 0 },
> -};
> -#endif
> -
> -int radeon_agp_init(struct radeon_device *rdev)
> -{
> -#if IS_ENABLED(CONFIG_AGP)
> - struct radeon_agpmode_quirk *p = radeon_agpmode_quirk_list;
> - struct drm_agp_mode mode;
> - struct drm_agp_info info;
> - uint32_t agp_status;
> - int default_mode;
> - bool is_v3;
> - int ret;
> -
> - /* Acquire AGP. */
> - ret = drm_agp_acquire(rdev->ddev);
> - if (ret) {
> - DRM_ERROR("Unable to acquire AGP: %d\n", ret);
> - return ret;
> - }
> -
> - ret = drm_agp_info(rdev->ddev, &info);
> - if (ret) {
> - drm_agp_release(rdev->ddev);
> - DRM_ERROR("Unable to get AGP info: %d\n", ret);
> - return ret;
> - }
> -
> - if (rdev->ddev->agp->agp_info.aper_size < 32) {
> - drm_agp_release(rdev->ddev);
> - dev_warn(rdev->dev, "AGP aperture too small (%zuM) "
> - "need at least 32M, disabling AGP\n",
> - rdev->ddev->agp->agp_info.aper_size);
> - return -EINVAL;
> - }
> -
> - mode.mode = info.mode;
> - /* chips with the agp to pcie bridge don't have the AGP_STATUS register
> - * Just use the whatever mode the host sets up.
> - */
> - if (rdev->family <= CHIP_RV350)
> - agp_status = (RREG32(RADEON_AGP_STATUS) | RADEON_AGPv3_MODE) & mode.mode;
> - else
> - agp_status = mode.mode;
> - is_v3 = !!(agp_status & RADEON_AGPv3_MODE);
> -
> - if (is_v3) {
> - default_mode = (agp_status & RADEON_AGPv3_8X_MODE) ? 8 : 4;
> - } else {
> - if (agp_status & RADEON_AGP_4X_MODE) {
> - default_mode = 4;
> - } else if (agp_status & RADEON_AGP_2X_MODE) {
> - default_mode = 2;
> - } else {
> - default_mode = 1;
> - }
> - }
> -
> - /* Apply AGPMode Quirks */
> - while (p && p->chip_device != 0) {
> - if (info.id_vendor == p->hostbridge_vendor &&
> - info.id_device == p->hostbridge_device &&
> - rdev->pdev->vendor == p->chip_vendor &&
> - rdev->pdev->device == p->chip_device &&
> - rdev->pdev->subsystem_vendor == p->subsys_vendor &&
> - rdev->pdev->subsystem_device == p->subsys_device) {
> - default_mode = p->default_mode;
> - }
> - ++p;
> - }
> -
> - if (radeon_agpmode > 0) {
> - if ((radeon_agpmode < (is_v3 ? 4 : 1)) ||
> - (radeon_agpmode > (is_v3 ? 8 : 4)) ||
> - (radeon_agpmode & (radeon_agpmode - 1))) {
> - DRM_ERROR("Illegal AGP Mode: %d (valid %s), leaving at %d\n",
> - radeon_agpmode, is_v3 ? "4, 8" : "1, 2, 4",
> - default_mode);
> - radeon_agpmode = default_mode;
> - } else {
> - DRM_INFO("AGP mode requested: %d\n", radeon_agpmode);
> - }
> - } else {
> - radeon_agpmode = default_mode;
> - }
> -
> - mode.mode &= ~RADEON_AGP_MODE_MASK;
> - if (is_v3) {
> - switch (radeon_agpmode) {
> - case 8:
> - mode.mode |= RADEON_AGPv3_8X_MODE;
> - break;
> - case 4:
> - default:
> - mode.mode |= RADEON_AGPv3_4X_MODE;
> - break;
> - }
> - } else {
> - switch (radeon_agpmode) {
> - case 4:
> - mode.mode |= RADEON_AGP_4X_MODE;
> - break;
> - case 2:
> - mode.mode |= RADEON_AGP_2X_MODE;
> - break;
> - case 1:
> - default:
> - mode.mode |= RADEON_AGP_1X_MODE;
> - break;
> - }
> - }
> -
> - mode.mode &= ~RADEON_AGP_FW_MODE; /* disable fw */
> - ret = drm_agp_enable(rdev->ddev, mode);
> - if (ret) {
> - DRM_ERROR("Unable to enable AGP (mode = 0x%lx)\n", mode.mode);
> - drm_agp_release(rdev->ddev);
> - return ret;
> - }
> -
> - rdev->mc.agp_base = rdev->ddev->agp->agp_info.aper_base;
> - rdev->mc.gtt_size = rdev->ddev->agp->agp_info.aper_size << 20;
> - rdev->mc.gtt_start = rdev->mc.agp_base;
> - rdev->mc.gtt_end = rdev->mc.gtt_start + rdev->mc.gtt_size - 1;
> - dev_info(rdev->dev, "GTT: %lluM 0x%08llX - 0x%08llX\n",
> - rdev->mc.gtt_size >> 20, rdev->mc.gtt_start, rdev->mc.gtt_end);
> -
> - /* workaround some hw issues */
> - if (rdev->family < CHIP_R200) {
> - WREG32(RADEON_AGP_CNTL, RREG32(RADEON_AGP_CNTL) | 0x000e0000);
> - }
> - return 0;
> -#else
> - return 0;
> -#endif
> -}
> -
> -void radeon_agp_resume(struct radeon_device *rdev)
> -{
> -#if IS_ENABLED(CONFIG_AGP)
> - int r;
> - if (rdev->flags & RADEON_IS_AGP) {
> - r = radeon_agp_init(rdev);
> - if (r)
> - dev_warn(rdev->dev, "radeon AGP reinit failed\n");
> - }
> -#endif
> -}
> -
> -void radeon_agp_fini(struct radeon_device *rdev)
> -{
> -#if IS_ENABLED(CONFIG_AGP)
> - if (rdev->ddev->agp && rdev->ddev->agp->acquired) {
> - drm_agp_release(rdev->ddev);
> - }
> -#endif
> -}
> -
> -void radeon_agp_suspend(struct radeon_device *rdev)
> -{
> - radeon_agp_fini(rdev);
> -}
> diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c
> index 266e3cbbd09b..12e5c5d81c47 100644
> --- a/drivers/gpu/drm/radeon/radeon_device.c
> +++ b/drivers/gpu/drm/radeon/radeon_device.c
> @@ -1145,22 +1145,6 @@ static void radeon_check_arguments(struct radeon_device *rdev)
> }
> rdev->mc.gtt_size = (uint64_t)radeon_gart_size << 20;
>
> - /* AGP mode can only be -1, 1, 2, 4, 8 */
> - switch (radeon_agpmode) {
> - case -1:
> - case 0:
> - case 1:
> - case 2:
> - case 4:
> - case 8:
> - break;
> - default:
> - dev_warn(rdev->dev, "invalid AGP mode %d (valid mode: "
> - "-1, 0, 1, 2, 4, 8)\n", radeon_agpmode);
> - radeon_agpmode = 0;
> - break;
> - }
> -
> if (!radeon_check_pot_argument(radeon_vm_size)) {
> dev_warn(rdev->dev, "VM size (%d) must be a power of 2\n",
> radeon_vm_size);
> @@ -1348,9 +1332,8 @@ int radeon_device_init(struct radeon_device *rdev,
> rdev->flags &= ~RADEON_IS_AGP;
> }
>
> - if (rdev->flags & RADEON_IS_AGP && radeon_agpmode == -1) {
> + if (rdev->flags & RADEON_IS_AGP)
> radeon_agp_disable(rdev);
> - }
>
> /* Set the internal MC address mask
> * This is the max address of the GPU's
> @@ -1636,8 +1619,6 @@ int radeon_suspend_kms(struct drm_device *dev, bool suspend,
> */
> radeon_bo_evict_vram(rdev);
>
> - radeon_agp_suspend(rdev);
> -
> pci_save_state(dev->pdev);
> if (freeze && rdev->family >= CHIP_CEDAR && !(rdev->flags & RADEON_IS_IGP)) {
> rdev->asic->asic_reset(rdev, true);
> @@ -1687,8 +1668,6 @@ int radeon_resume_kms(struct drm_device *dev, bool resume, bool fbcon)
> return -1;
> }
> }
> - /* resume AGP if in use */
> - radeon_agp_resume(rdev);
> radeon_resume(rdev);
>
> r = radeon_ib_ring_tests(rdev);
> diff --git a/drivers/gpu/drm/radeon/radeon_drv.c b/drivers/gpu/drm/radeon/radeon_drv.c
> index bbb0883e8ce6..62a5dfaf990b 100644
> --- a/drivers/gpu/drm/radeon/radeon_drv.c
> +++ b/drivers/gpu/drm/radeon/radeon_drv.c
> @@ -171,12 +171,6 @@ int radeon_no_wb;
> int radeon_modeset = -1;
> int radeon_dynclks = -1;
> int radeon_r4xx_atom = 0;
> -#ifdef __powerpc__
> -/* Default to PCI on PowerPC (fdo #95017) */
> -int radeon_agpmode = -1;
> -#else
> -int radeon_agpmode = 0;
> -#endif
> int radeon_vram_limit = 0;
> int radeon_gart_size = -1; /* auto */
> int radeon_benchmarking = 0;
> @@ -220,9 +214,6 @@ module_param_named(r4xx_atom, radeon_r4xx_atom, int, 0444);
> MODULE_PARM_DESC(vramlimit, "Restrict VRAM for testing, in megabytes");
> module_param_named(vramlimit, radeon_vram_limit, int, 0600);
>
> -MODULE_PARM_DESC(agpmode, "AGP Mode (-1 == PCI)");
> -module_param_named(agpmode, radeon_agpmode, int, 0444);
> -
> MODULE_PARM_DESC(gartsize, "Size of PCIE/IGP gart to setup in megabytes (32, 64, etc., -1 = auto)");
> module_param_named(gartsize, radeon_gart_size, int, 0600);
>
> diff --git a/drivers/gpu/drm/radeon/radeon_ttm.c b/drivers/gpu/drm/radeon/radeon_ttm.c
> index 5d50c9edbe80..21bb3706c13c 100644
> --- a/drivers/gpu/drm/radeon/radeon_ttm.c
> +++ b/drivers/gpu/drm/radeon/radeon_ttm.c
> @@ -86,20 +86,6 @@ static int radeon_init_mem_type(struct ttm_bo_device *bdev, uint32_t type,
> man->available_caching = TTM_PL_MASK_CACHING;
> man->default_caching = TTM_PL_FLAG_CACHED;
> man->flags = TTM_MEMTYPE_FLAG_MAPPABLE | TTM_MEMTYPE_FLAG_CMA;
> -#if IS_ENABLED(CONFIG_AGP)
> - if (rdev->flags & RADEON_IS_AGP) {
> - if (!rdev->ddev->agp) {
> - DRM_ERROR("AGP is not enabled for memory type %u\n",
> - (unsigned)type);
> - return -EINVAL;
> - }
> - if (!rdev->ddev->agp->cant_use_aperture)
> - man->flags = TTM_MEMTYPE_FLAG_MAPPABLE;
> - man->available_caching = TTM_PL_FLAG_UNCACHED |
> - TTM_PL_FLAG_WC;
> - man->default_caching = TTM_PL_FLAG_WC;
> - }
> -#endif
> break;
> case TTM_PL_VRAM:
> /* "On-card" video ram */
> @@ -411,14 +397,6 @@ static int radeon_ttm_io_mem_reserve(struct ttm_bo_device *bdev, struct ttm_mem_
> /* system memory */
> return 0;
> case TTM_PL_TT:
> -#if IS_ENABLED(CONFIG_AGP)
> - if (rdev->flags & RADEON_IS_AGP) {
> - /* RADEON_IS_AGP is set only if AGP is active */
> - mem->bus.offset = mem->start << PAGE_SHIFT;
> - mem->bus.base = rdev->mc.agp_base;
> - mem->bus.is_iomem = !rdev->ddev->agp->cant_use_aperture;
> - }
> -#endif
> break;
> case TTM_PL_VRAM:
> mem->bus.offset = mem->start << PAGE_SHIFT;
> @@ -631,12 +609,6 @@ static struct ttm_tt *radeon_ttm_tt_create(struct ttm_buffer_object *bo,
> struct radeon_ttm_tt *gtt;
>
> rdev = radeon_get_rdev(bo->bdev);
> -#if IS_ENABLED(CONFIG_AGP)
> - if (rdev->flags & RADEON_IS_AGP) {
> - return ttm_agp_tt_create(bo, rdev->ddev->agp->bridge,
> - page_flags);
> - }
> -#endif
>
> gtt = kzalloc(sizeof(struct radeon_ttm_tt), GFP_KERNEL);
> if (gtt == NULL) {
> @@ -683,11 +655,6 @@ static int radeon_ttm_tt_populate(struct ttm_tt *ttm,
> }
>
> rdev = radeon_get_rdev(ttm->bdev);
> -#if IS_ENABLED(CONFIG_AGP)
> - if (rdev->flags & RADEON_IS_AGP) {
> - return ttm_agp_tt_populate(ttm, ctx);
> - }
> -#endif
>
> #ifdef CONFIG_SWIOTLB
> if (rdev->need_swiotlb && swiotlb_nr_tbl()) {
> @@ -714,12 +681,6 @@ static void radeon_ttm_tt_unpopulate(struct ttm_tt *ttm)
> return;
>
> rdev = radeon_get_rdev(ttm->bdev);
> -#if IS_ENABLED(CONFIG_AGP)
> - if (rdev->flags & RADEON_IS_AGP) {
> - ttm_agp_tt_unpopulate(ttm);
> - return;
> - }
> -#endif
>
> #ifdef CONFIG_SWIOTLB
> if (rdev->need_swiotlb && swiotlb_nr_tbl()) {
> diff --git a/drivers/gpu/drm/radeon/rv515.c b/drivers/gpu/drm/radeon/rv515.c
> index 147e5cf8348d..8a2f16320869 100644
> --- a/drivers/gpu/drm/radeon/rv515.c
> +++ b/drivers/gpu/drm/radeon/rv515.c
> @@ -622,7 +622,6 @@ void rv515_fini(struct radeon_device *rdev)
> radeon_ib_pool_fini(rdev);
> radeon_gem_fini(rdev);
> rv370_pcie_gart_fini(rdev);
> - radeon_agp_fini(rdev);
> radeon_irq_kms_fini(rdev);
> radeon_fence_driver_fini(rdev);
> radeon_bo_fini(rdev);
> @@ -667,13 +666,6 @@ int rv515_init(struct radeon_device *rdev)
> return -EINVAL;
> /* Initialize clocks */
> radeon_get_clock_info(rdev->ddev);
> - /* initialize AGP */
> - if (rdev->flags & RADEON_IS_AGP) {
> - r = radeon_agp_init(rdev);
> - if (r) {
> - radeon_agp_disable(rdev);
> - }
> - }
> /* initialize memory controller */
> rv515_mc_init(rdev);
> rv515_debugfs(rdev);
> @@ -703,7 +695,6 @@ int rv515_init(struct radeon_device *rdev)
> radeon_ib_pool_fini(rdev);
> radeon_irq_kms_fini(rdev);
> rv370_pcie_gart_fini(rdev);
> - radeon_agp_fini(rdev);
> rdev->accel_working = false;
> }
> return 0;
> diff --git a/drivers/gpu/drm/radeon/rv770.c b/drivers/gpu/drm/radeon/rv770.c
> index 21f653ae1e1b..20bf54266f24 100644
> --- a/drivers/gpu/drm/radeon/rv770.c
> +++ b/drivers/gpu/drm/radeon/rv770.c
> @@ -1943,12 +1943,6 @@ int rv770_init(struct radeon_device *rdev)
> r = radeon_fence_driver_init(rdev);
> if (r)
> return r;
> - /* initialize AGP */
> - if (rdev->flags & RADEON_IS_AGP) {
> - r = radeon_agp_init(rdev);
> - if (r)
> - radeon_agp_disable(rdev);
> - }
> r = rv770_mc_init(rdev);
> if (r)
> return r;
> @@ -2015,7 +2009,6 @@ void rv770_fini(struct radeon_device *rdev)
> r600_vram_scratch_fini(rdev);
> radeon_gem_fini(rdev);
> radeon_fence_driver_fini(rdev);
> - radeon_agp_fini(rdev);
> radeon_bo_fini(rdev);
> radeon_atombios_fini(rdev);
> kfree(rdev->bios);
> --
> 2.17.1
>
> _______________________________________________
> amd-gfx mailing list
> amd-gfx@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/amd-gfx
_______________________________________________
Nouveau mailing list
Nouveau@lists.freedesktop.org
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^ permalink raw reply [flat|nested] 81+ messages in thread
* Re: [PATCH 1/3] drm/radeon: remove AGP support
@ 2020-05-11 20:12 ` Alex Deucher
0 siblings, 0 replies; 81+ messages in thread
From: Alex Deucher @ 2020-05-11 20:12 UTC (permalink / raw)
To: Christian König; +Cc: nouveau, amd-gfx list, Maling list - DRI developers
On Mon, May 11, 2020 at 1:17 PM Christian König
<ckoenig.leichtzumerken@gmail.com> wrote:
>
> AGP is deprecated for 10+ years now and not used any more on modern hardware.
>
> Old hardware should continue to work in PCI mode.
Might want to clarify that there is no loss of functionality here.
Something like:
"There is no loss of functionality here. GPUs will continue to
function. This just drops the use of the AGP MMU in the chipset in
favor of the MMU on the device which has proven to be much more
reliable. Due to its unreliability, AGP support has been disabled on
PowerPC for years already so there is no change on PowerPC."
With that updated, patches 1, 3:
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
patch 2:
Acked-by: Alex Deucher <alexander.deucher@amd.com>
>
> Signed-off-by: Christian König <christian.koenig@amd.com>
> ---
> drivers/gpu/drm/radeon/Makefile | 4 +-
> drivers/gpu/drm/radeon/evergreen.c | 7 -
> drivers/gpu/drm/radeon/r100.c | 10 +-
> drivers/gpu/drm/radeon/r300.c | 9 -
> drivers/gpu/drm/radeon/r420.c | 9 -
> drivers/gpu/drm/radeon/r520.c | 8 -
> drivers/gpu/drm/radeon/r600.c | 6 -
> drivers/gpu/drm/radeon/radeon.h | 11 -
> drivers/gpu/drm/radeon/radeon_agp.c | 290 -------------------------
> drivers/gpu/drm/radeon/radeon_device.c | 23 +-
> drivers/gpu/drm/radeon/radeon_drv.c | 9 -
> drivers/gpu/drm/radeon/radeon_ttm.c | 39 ----
> drivers/gpu/drm/radeon/rv515.c | 9 -
> drivers/gpu/drm/radeon/rv770.c | 7 -
> 14 files changed, 4 insertions(+), 437 deletions(-)
> delete mode 100644 drivers/gpu/drm/radeon/radeon_agp.c
>
> diff --git a/drivers/gpu/drm/radeon/Makefile b/drivers/gpu/drm/radeon/Makefile
> index c693b2ca0329..77429cfd303e 100644
> --- a/drivers/gpu/drm/radeon/Makefile
> +++ b/drivers/gpu/drm/radeon/Makefile
> @@ -61,8 +61,8 @@ radeon-y := radeon_drv.o
>
> # add KMS driver
> radeon-y += radeon_device.o radeon_asic.o radeon_kms.o \
> - radeon_atombios.o radeon_agp.o atombios_crtc.o radeon_combios.o \
> - atom.o radeon_fence.o radeon_ttm.o radeon_object.o radeon_gart.o \
> + radeon_atombios.o atombios_crtc.o radeon_combios.o atom.o \
> + radeon_fence.o radeon_ttm.o radeon_object.o radeon_gart.o \
> radeon_legacy_crtc.o radeon_legacy_encoders.o radeon_connectors.o \
> radeon_encoders.o radeon_display.o radeon_cursor.o radeon_i2c.o \
> radeon_clocks.o radeon_fb.o radeon_gem.o radeon_ring.o radeon_irq_kms.o \
> diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c
> index 14d90dc376e7..66b3d9a2c6dd 100644
> --- a/drivers/gpu/drm/radeon/evergreen.c
> +++ b/drivers/gpu/drm/radeon/evergreen.c
> @@ -5216,12 +5216,6 @@ int evergreen_init(struct radeon_device *rdev)
> r = radeon_fence_driver_init(rdev);
> if (r)
> return r;
> - /* initialize AGP */
> - if (rdev->flags & RADEON_IS_AGP) {
> - r = radeon_agp_init(rdev);
> - if (r)
> - radeon_agp_disable(rdev);
> - }
> /* initialize memory controller */
> r = evergreen_mc_init(rdev);
> if (r)
> @@ -5315,7 +5309,6 @@ void evergreen_fini(struct radeon_device *rdev)
> r600_vram_scratch_fini(rdev);
> radeon_gem_fini(rdev);
> radeon_fence_driver_fini(rdev);
> - radeon_agp_fini(rdev);
> radeon_bo_fini(rdev);
> radeon_atombios_fini(rdev);
> kfree(rdev->bios);
> diff --git a/drivers/gpu/drm/radeon/r100.c b/drivers/gpu/drm/radeon/r100.c
> index 24c8db673931..320b1b40a30a 100644
> --- a/drivers/gpu/drm/radeon/r100.c
> +++ b/drivers/gpu/drm/radeon/r100.c
> @@ -3382,7 +3382,7 @@ void r100_bandwidth_update(struct radeon_device *rdev)
>
> if (rdev->flags & RADEON_IS_AGP) {
> fixed20_12 agpmode_ff;
> - agpmode_ff.full = dfixed_const(radeon_agpmode);
> + agpmode_ff.full = dfixed_const(0);
> temp_ff.full = dfixed_const_666(16);
> sclk_eff_ff.full -= dfixed_mul(agpmode_ff, temp_ff);
> }
> @@ -3992,7 +3992,6 @@ void r100_fini(struct radeon_device *rdev)
> radeon_gem_fini(rdev);
> if (rdev->flags & RADEON_IS_PCI)
> r100_pci_gart_fini(rdev);
> - radeon_agp_fini(rdev);
> radeon_irq_kms_fini(rdev);
> radeon_fence_driver_fini(rdev);
> radeon_bo_fini(rdev);
> @@ -4068,13 +4067,6 @@ int r100_init(struct radeon_device *rdev)
> r100_errata(rdev);
> /* Initialize clocks */
> radeon_get_clock_info(rdev->ddev);
> - /* initialize AGP */
> - if (rdev->flags & RADEON_IS_AGP) {
> - r = radeon_agp_init(rdev);
> - if (r) {
> - radeon_agp_disable(rdev);
> - }
> - }
> /* initialize VRAM */
> r100_mc_init(rdev);
> /* Fence driver */
> diff --git a/drivers/gpu/drm/radeon/r300.c b/drivers/gpu/drm/radeon/r300.c
> index 3b7ead5be5bf..afd688629cf9 100644
> --- a/drivers/gpu/drm/radeon/r300.c
> +++ b/drivers/gpu/drm/radeon/r300.c
> @@ -1498,7 +1498,6 @@ void r300_fini(struct radeon_device *rdev)
> rv370_pcie_gart_fini(rdev);
> if (rdev->flags & RADEON_IS_PCI)
> r100_pci_gart_fini(rdev);
> - radeon_agp_fini(rdev);
> radeon_irq_kms_fini(rdev);
> radeon_fence_driver_fini(rdev);
> radeon_bo_fini(rdev);
> @@ -1547,13 +1546,6 @@ int r300_init(struct radeon_device *rdev)
> r300_errata(rdev);
> /* Initialize clocks */
> radeon_get_clock_info(rdev->ddev);
> - /* initialize AGP */
> - if (rdev->flags & RADEON_IS_AGP) {
> - r = radeon_agp_init(rdev);
> - if (r) {
> - radeon_agp_disable(rdev);
> - }
> - }
> /* initialize memory controller */
> r300_mc_init(rdev);
> /* Fence driver */
> @@ -1592,7 +1584,6 @@ int r300_init(struct radeon_device *rdev)
> rv370_pcie_gart_fini(rdev);
> if (rdev->flags & RADEON_IS_PCI)
> r100_pci_gart_fini(rdev);
> - radeon_agp_fini(rdev);
> rdev->accel_working = false;
> }
> return 0;
> diff --git a/drivers/gpu/drm/radeon/r420.c b/drivers/gpu/drm/radeon/r420.c
> index 1d4c04e0a449..3cb337dacd56 100644
> --- a/drivers/gpu/drm/radeon/r420.c
> +++ b/drivers/gpu/drm/radeon/r420.c
> @@ -366,7 +366,6 @@ void r420_fini(struct radeon_device *rdev)
> rv370_pcie_gart_fini(rdev);
> if (rdev->flags & RADEON_IS_PCI)
> r100_pci_gart_fini(rdev);
> - radeon_agp_fini(rdev);
> radeon_irq_kms_fini(rdev);
> radeon_fence_driver_fini(rdev);
> radeon_bo_fini(rdev);
> @@ -419,13 +418,6 @@ int r420_init(struct radeon_device *rdev)
>
> /* Initialize clocks */
> radeon_get_clock_info(rdev->ddev);
> - /* initialize AGP */
> - if (rdev->flags & RADEON_IS_AGP) {
> - r = radeon_agp_init(rdev);
> - if (r) {
> - radeon_agp_disable(rdev);
> - }
> - }
> /* initialize memory controller */
> r300_mc_init(rdev);
> r420_debugfs(rdev);
> @@ -470,7 +462,6 @@ int r420_init(struct radeon_device *rdev)
> rv370_pcie_gart_fini(rdev);
> if (rdev->flags & RADEON_IS_PCI)
> r100_pci_gart_fini(rdev);
> - radeon_agp_fini(rdev);
> rdev->accel_working = false;
> }
> return 0;
> diff --git a/drivers/gpu/drm/radeon/r520.c b/drivers/gpu/drm/radeon/r520.c
> index fc78e64ae727..76ac87d72406 100644
> --- a/drivers/gpu/drm/radeon/r520.c
> +++ b/drivers/gpu/drm/radeon/r520.c
> @@ -288,13 +288,6 @@ int r520_init(struct radeon_device *rdev)
> }
> /* Initialize clocks */
> radeon_get_clock_info(rdev->ddev);
> - /* initialize AGP */
> - if (rdev->flags & RADEON_IS_AGP) {
> - r = radeon_agp_init(rdev);
> - if (r) {
> - radeon_agp_disable(rdev);
> - }
> - }
> /* initialize memory controller */
> r520_mc_init(rdev);
> rv515_debugfs(rdev);
> @@ -324,7 +317,6 @@ int r520_init(struct radeon_device *rdev)
> radeon_ib_pool_fini(rdev);
> radeon_irq_kms_fini(rdev);
> rv370_pcie_gart_fini(rdev);
> - radeon_agp_fini(rdev);
> rdev->accel_working = false;
> }
> return 0;
> diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c
> index d9a33ca768f3..4a5ac15893c2 100644
> --- a/drivers/gpu/drm/radeon/r600.c
> +++ b/drivers/gpu/drm/radeon/r600.c
> @@ -3286,11 +3286,6 @@ int r600_init(struct radeon_device *rdev)
> r = radeon_fence_driver_init(rdev);
> if (r)
> return r;
> - if (rdev->flags & RADEON_IS_AGP) {
> - r = radeon_agp_init(rdev);
> - if (r)
> - radeon_agp_disable(rdev);
> - }
> r = r600_mc_init(rdev);
> if (r)
> return r;
> @@ -3353,7 +3348,6 @@ void r600_fini(struct radeon_device *rdev)
> radeon_irq_kms_fini(rdev);
> r600_pcie_gart_fini(rdev);
> r600_vram_scratch_fini(rdev);
> - radeon_agp_fini(rdev);
> radeon_gem_fini(rdev);
> radeon_fence_driver_fini(rdev);
> radeon_bo_fini(rdev);
> diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h
> index 30e32adc1fc6..377e1403b134 100644
> --- a/drivers/gpu/drm/radeon/radeon.h
> +++ b/drivers/gpu/drm/radeon/radeon.h
> @@ -91,7 +91,6 @@ extern int radeon_no_wb;
> extern int radeon_modeset;
> extern int radeon_dynclks;
> extern int radeon_r4xx_atom;
> -extern int radeon_agpmode;
> extern int radeon_vram_limit;
> extern int radeon_gart_size;
> extern int radeon_benchmarking;
> @@ -1116,16 +1115,6 @@ typedef int (*radeon_packet0_check_t)(struct radeon_cs_parser *p,
> typedef int (*radeon_packet3_check_t)(struct radeon_cs_parser *p,
> struct radeon_cs_packet *pkt);
>
> -
> -/*
> - * AGP
> - */
> -int radeon_agp_init(struct radeon_device *rdev);
> -void radeon_agp_resume(struct radeon_device *rdev);
> -void radeon_agp_suspend(struct radeon_device *rdev);
> -void radeon_agp_fini(struct radeon_device *rdev);
> -
> -
> /*
> * Writeback
> */
> diff --git a/drivers/gpu/drm/radeon/radeon_agp.c b/drivers/gpu/drm/radeon/radeon_agp.c
> deleted file mode 100644
> index 0aca7bdf54c7..000000000000
> --- a/drivers/gpu/drm/radeon/radeon_agp.c
> +++ /dev/null
> @@ -1,290 +0,0 @@
> -/*
> - * Copyright 2008 Red Hat Inc.
> - * Copyright 2009 Jerome Glisse.
> - *
> - * Permission is hereby granted, free of charge, to any person obtaining a
> - * copy of this software and associated documentation files (the "Software"),
> - * to deal in the Software without restriction, including without limitation
> - * the rights to use, copy, modify, merge, publish, distribute, sublicense,
> - * and/or sell copies of the Software, and to permit persons to whom the
> - * Software is furnished to do so, subject to the following conditions:
> - *
> - * The above copyright notice and this permission notice shall be included in
> - * all copies or substantial portions of the Software.
> - *
> - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
> - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
> - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
> - * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
> - * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
> - * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
> - * OTHER DEALINGS IN THE SOFTWARE.
> - *
> - * Authors:
> - * Dave Airlie
> - * Jerome Glisse <glisse@freedesktop.org>
> - */
> -
> -#include <linux/pci.h>
> -
> -#include <drm/drm_agpsupport.h>
> -#include <drm/drm_device.h>
> -#include <drm/radeon_drm.h>
> -
> -#include "radeon.h"
> -
> -#if IS_ENABLED(CONFIG_AGP)
> -
> -struct radeon_agpmode_quirk {
> - u32 hostbridge_vendor;
> - u32 hostbridge_device;
> - u32 chip_vendor;
> - u32 chip_device;
> - u32 subsys_vendor;
> - u32 subsys_device;
> - u32 default_mode;
> -};
> -
> -static struct radeon_agpmode_quirk radeon_agpmode_quirk_list[] = {
> - /* Intel E7505 Memory Controller Hub / RV350 AR [Radeon 9600XT] Needs AGPMode 4 (deb #515326) */
> - { PCI_VENDOR_ID_INTEL, 0x2550, PCI_VENDOR_ID_ATI, 0x4152, 0x1458, 0x4038, 4},
> - /* Intel 82865G/PE/P DRAM Controller/Host-Hub / Mobility 9800 Needs AGPMode 4 (deb #462590) */
> - { PCI_VENDOR_ID_INTEL, 0x2570, PCI_VENDOR_ID_ATI, 0x4a4e, PCI_VENDOR_ID_DELL, 0x5106, 4},
> - /* Intel 82865G/PE/P DRAM Controller/Host-Hub / RV280 [Radeon 9200 SE] Needs AGPMode 4 (lp #300304) */
> - { PCI_VENDOR_ID_INTEL, 0x2570, PCI_VENDOR_ID_ATI, 0x5964,
> - 0x148c, 0x2073, 4},
> - /* Intel 82855PM Processor to I/O Controller / Mobility M6 LY Needs AGPMode 1 (deb #467235) */
> - { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4c59,
> - PCI_VENDOR_ID_IBM, 0x052f, 1},
> - /* Intel 82855PM host bridge / Mobility 9600 M10 RV350 Needs AGPMode 1 (lp #195051) */
> - { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4e50,
> - PCI_VENDOR_ID_IBM, 0x0550, 1},
> - /* Intel 82855PM host bridge / RV250/M9 GL [Mobility FireGL 9000/Radeon 9000] needs AGPMode 1 (Thinkpad T40p) */
> - { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4c66,
> - PCI_VENDOR_ID_IBM, 0x054d, 1},
> - /* Intel 82855PM host bridge / Mobility M7 needs AGPMode 1 */
> - { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4c57,
> - PCI_VENDOR_ID_IBM, 0x0530, 1},
> - /* Intel 82855PM host bridge / FireGL Mobility T2 RV350 Needs AGPMode 2 (fdo #20647) */
> - { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4e54,
> - PCI_VENDOR_ID_IBM, 0x054f, 2},
> - /* Intel 82855PM host bridge / Mobility M9+ / VaioPCG-V505DX Needs AGPMode 2 (fdo #17928) */
> - { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x5c61,
> - PCI_VENDOR_ID_SONY, 0x816b, 2},
> - /* Intel 82855PM Processor to I/O Controller / Mobility M9+ Needs AGPMode 8 (phoronix forum) */
> - { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x5c61,
> - PCI_VENDOR_ID_SONY, 0x8195, 8},
> - /* Intel 82830 830 Chipset Host Bridge / Mobility M6 LY Needs AGPMode 2 (fdo #17360)*/
> - { PCI_VENDOR_ID_INTEL, 0x3575, PCI_VENDOR_ID_ATI, 0x4c59,
> - PCI_VENDOR_ID_DELL, 0x00e3, 2},
> - /* Intel 82852/82855 host bridge / Mobility FireGL 9000 RV250 Needs AGPMode 1 (lp #296617) */
> - { PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4c66,
> - PCI_VENDOR_ID_DELL, 0x0149, 1},
> - /* Intel 82855PM host bridge / Mobility FireGL 9000 RV250 Needs AGPMode 1 for suspend/resume */
> - { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4c66,
> - PCI_VENDOR_ID_IBM, 0x0531, 1},
> - /* Intel 82852/82855 host bridge / Mobility 9600 M10 RV350 Needs AGPMode 1 (deb #467460) */
> - { PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4e50,
> - 0x1025, 0x0061, 1},
> - /* Intel 82852/82855 host bridge / Mobility 9600 M10 RV350 Needs AGPMode 1 (lp #203007) */
> - { PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4e50,
> - 0x1025, 0x0064, 1},
> - /* Intel 82852/82855 host bridge / Mobility 9600 M10 RV350 Needs AGPMode 1 (lp #141551) */
> - { PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4e50,
> - PCI_VENDOR_ID_ASUSTEK, 0x1942, 1},
> - /* Intel 82852/82855 host bridge / Mobility 9600/9700 Needs AGPMode 1 (deb #510208) */
> - { PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4e50,
> - 0x10cf, 0x127f, 1},
> - /* ASRock K7VT4A+ AGP 8x / ATI Radeon 9250 AGP Needs AGPMode 4 (lp #133192) */
> - { 0x1849, 0x3189, PCI_VENDOR_ID_ATI, 0x5960,
> - 0x1787, 0x5960, 4},
> - /* VIA K8M800 Host Bridge / RV280 [Radeon 9200 PRO] Needs AGPMode 4 (fdo #12544) */
> - { PCI_VENDOR_ID_VIA, 0x0204, PCI_VENDOR_ID_ATI, 0x5960,
> - 0x17af, 0x2020, 4},
> - /* VIA KT880 Host Bridge / RV350 [Radeon 9550] Needs AGPMode 4 (fdo #19981) */
> - { PCI_VENDOR_ID_VIA, 0x0269, PCI_VENDOR_ID_ATI, 0x4153,
> - PCI_VENDOR_ID_ASUSTEK, 0x003c, 4},
> - /* VIA VT8363 Host Bridge / R200 QL [Radeon 8500] Needs AGPMode 2 (lp #141551) */
> - { PCI_VENDOR_ID_VIA, 0x0305, PCI_VENDOR_ID_ATI, 0x514c,
> - PCI_VENDOR_ID_ATI, 0x013a, 2},
> - /* VIA VT82C693A Host Bridge / RV280 [Radeon 9200 PRO] Needs AGPMode 2 (deb #515512) */
> - { PCI_VENDOR_ID_VIA, 0x0691, PCI_VENDOR_ID_ATI, 0x5960,
> - PCI_VENDOR_ID_ASUSTEK, 0x004c, 2},
> - /* VIA VT82C693A Host Bridge / RV280 [Radeon 9200 PRO] Needs AGPMode 2 */
> - { PCI_VENDOR_ID_VIA, 0x0691, PCI_VENDOR_ID_ATI, 0x5960,
> - PCI_VENDOR_ID_ASUSTEK, 0x0054, 2},
> - /* VIA VT8377 Host Bridge / R200 QM [Radeon 9100] Needs AGPMode 4 (deb #461144) */
> - { PCI_VENDOR_ID_VIA, 0x3189, PCI_VENDOR_ID_ATI, 0x514d,
> - 0x174b, 0x7149, 4},
> - /* VIA VT8377 Host Bridge / RV280 [Radeon 9200 PRO] Needs AGPMode 4 (lp #312693) */
> - { PCI_VENDOR_ID_VIA, 0x3189, PCI_VENDOR_ID_ATI, 0x5960,
> - 0x1462, 0x0380, 4},
> - /* VIA VT8377 Host Bridge / RV280 Needs AGPMode 4 (ati ML) */
> - { PCI_VENDOR_ID_VIA, 0x3189, PCI_VENDOR_ID_ATI, 0x5964,
> - 0x148c, 0x2073, 4},
> - /* ATI Host Bridge / RV280 [M9+] Needs AGPMode 1 (phoronix forum) */
> - { PCI_VENDOR_ID_ATI, 0xcbb2, PCI_VENDOR_ID_ATI, 0x5c61,
> - PCI_VENDOR_ID_SONY, 0x8175, 1},
> - { 0, 0, 0, 0, 0, 0, 0 },
> -};
> -#endif
> -
> -int radeon_agp_init(struct radeon_device *rdev)
> -{
> -#if IS_ENABLED(CONFIG_AGP)
> - struct radeon_agpmode_quirk *p = radeon_agpmode_quirk_list;
> - struct drm_agp_mode mode;
> - struct drm_agp_info info;
> - uint32_t agp_status;
> - int default_mode;
> - bool is_v3;
> - int ret;
> -
> - /* Acquire AGP. */
> - ret = drm_agp_acquire(rdev->ddev);
> - if (ret) {
> - DRM_ERROR("Unable to acquire AGP: %d\n", ret);
> - return ret;
> - }
> -
> - ret = drm_agp_info(rdev->ddev, &info);
> - if (ret) {
> - drm_agp_release(rdev->ddev);
> - DRM_ERROR("Unable to get AGP info: %d\n", ret);
> - return ret;
> - }
> -
> - if (rdev->ddev->agp->agp_info.aper_size < 32) {
> - drm_agp_release(rdev->ddev);
> - dev_warn(rdev->dev, "AGP aperture too small (%zuM) "
> - "need at least 32M, disabling AGP\n",
> - rdev->ddev->agp->agp_info.aper_size);
> - return -EINVAL;
> - }
> -
> - mode.mode = info.mode;
> - /* chips with the agp to pcie bridge don't have the AGP_STATUS register
> - * Just use the whatever mode the host sets up.
> - */
> - if (rdev->family <= CHIP_RV350)
> - agp_status = (RREG32(RADEON_AGP_STATUS) | RADEON_AGPv3_MODE) & mode.mode;
> - else
> - agp_status = mode.mode;
> - is_v3 = !!(agp_status & RADEON_AGPv3_MODE);
> -
> - if (is_v3) {
> - default_mode = (agp_status & RADEON_AGPv3_8X_MODE) ? 8 : 4;
> - } else {
> - if (agp_status & RADEON_AGP_4X_MODE) {
> - default_mode = 4;
> - } else if (agp_status & RADEON_AGP_2X_MODE) {
> - default_mode = 2;
> - } else {
> - default_mode = 1;
> - }
> - }
> -
> - /* Apply AGPMode Quirks */
> - while (p && p->chip_device != 0) {
> - if (info.id_vendor == p->hostbridge_vendor &&
> - info.id_device == p->hostbridge_device &&
> - rdev->pdev->vendor == p->chip_vendor &&
> - rdev->pdev->device == p->chip_device &&
> - rdev->pdev->subsystem_vendor == p->subsys_vendor &&
> - rdev->pdev->subsystem_device == p->subsys_device) {
> - default_mode = p->default_mode;
> - }
> - ++p;
> - }
> -
> - if (radeon_agpmode > 0) {
> - if ((radeon_agpmode < (is_v3 ? 4 : 1)) ||
> - (radeon_agpmode > (is_v3 ? 8 : 4)) ||
> - (radeon_agpmode & (radeon_agpmode - 1))) {
> - DRM_ERROR("Illegal AGP Mode: %d (valid %s), leaving at %d\n",
> - radeon_agpmode, is_v3 ? "4, 8" : "1, 2, 4",
> - default_mode);
> - radeon_agpmode = default_mode;
> - } else {
> - DRM_INFO("AGP mode requested: %d\n", radeon_agpmode);
> - }
> - } else {
> - radeon_agpmode = default_mode;
> - }
> -
> - mode.mode &= ~RADEON_AGP_MODE_MASK;
> - if (is_v3) {
> - switch (radeon_agpmode) {
> - case 8:
> - mode.mode |= RADEON_AGPv3_8X_MODE;
> - break;
> - case 4:
> - default:
> - mode.mode |= RADEON_AGPv3_4X_MODE;
> - break;
> - }
> - } else {
> - switch (radeon_agpmode) {
> - case 4:
> - mode.mode |= RADEON_AGP_4X_MODE;
> - break;
> - case 2:
> - mode.mode |= RADEON_AGP_2X_MODE;
> - break;
> - case 1:
> - default:
> - mode.mode |= RADEON_AGP_1X_MODE;
> - break;
> - }
> - }
> -
> - mode.mode &= ~RADEON_AGP_FW_MODE; /* disable fw */
> - ret = drm_agp_enable(rdev->ddev, mode);
> - if (ret) {
> - DRM_ERROR("Unable to enable AGP (mode = 0x%lx)\n", mode.mode);
> - drm_agp_release(rdev->ddev);
> - return ret;
> - }
> -
> - rdev->mc.agp_base = rdev->ddev->agp->agp_info.aper_base;
> - rdev->mc.gtt_size = rdev->ddev->agp->agp_info.aper_size << 20;
> - rdev->mc.gtt_start = rdev->mc.agp_base;
> - rdev->mc.gtt_end = rdev->mc.gtt_start + rdev->mc.gtt_size - 1;
> - dev_info(rdev->dev, "GTT: %lluM 0x%08llX - 0x%08llX\n",
> - rdev->mc.gtt_size >> 20, rdev->mc.gtt_start, rdev->mc.gtt_end);
> -
> - /* workaround some hw issues */
> - if (rdev->family < CHIP_R200) {
> - WREG32(RADEON_AGP_CNTL, RREG32(RADEON_AGP_CNTL) | 0x000e0000);
> - }
> - return 0;
> -#else
> - return 0;
> -#endif
> -}
> -
> -void radeon_agp_resume(struct radeon_device *rdev)
> -{
> -#if IS_ENABLED(CONFIG_AGP)
> - int r;
> - if (rdev->flags & RADEON_IS_AGP) {
> - r = radeon_agp_init(rdev);
> - if (r)
> - dev_warn(rdev->dev, "radeon AGP reinit failed\n");
> - }
> -#endif
> -}
> -
> -void radeon_agp_fini(struct radeon_device *rdev)
> -{
> -#if IS_ENABLED(CONFIG_AGP)
> - if (rdev->ddev->agp && rdev->ddev->agp->acquired) {
> - drm_agp_release(rdev->ddev);
> - }
> -#endif
> -}
> -
> -void radeon_agp_suspend(struct radeon_device *rdev)
> -{
> - radeon_agp_fini(rdev);
> -}
> diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c
> index 266e3cbbd09b..12e5c5d81c47 100644
> --- a/drivers/gpu/drm/radeon/radeon_device.c
> +++ b/drivers/gpu/drm/radeon/radeon_device.c
> @@ -1145,22 +1145,6 @@ static void radeon_check_arguments(struct radeon_device *rdev)
> }
> rdev->mc.gtt_size = (uint64_t)radeon_gart_size << 20;
>
> - /* AGP mode can only be -1, 1, 2, 4, 8 */
> - switch (radeon_agpmode) {
> - case -1:
> - case 0:
> - case 1:
> - case 2:
> - case 4:
> - case 8:
> - break;
> - default:
> - dev_warn(rdev->dev, "invalid AGP mode %d (valid mode: "
> - "-1, 0, 1, 2, 4, 8)\n", radeon_agpmode);
> - radeon_agpmode = 0;
> - break;
> - }
> -
> if (!radeon_check_pot_argument(radeon_vm_size)) {
> dev_warn(rdev->dev, "VM size (%d) must be a power of 2\n",
> radeon_vm_size);
> @@ -1348,9 +1332,8 @@ int radeon_device_init(struct radeon_device *rdev,
> rdev->flags &= ~RADEON_IS_AGP;
> }
>
> - if (rdev->flags & RADEON_IS_AGP && radeon_agpmode == -1) {
> + if (rdev->flags & RADEON_IS_AGP)
> radeon_agp_disable(rdev);
> - }
>
> /* Set the internal MC address mask
> * This is the max address of the GPU's
> @@ -1636,8 +1619,6 @@ int radeon_suspend_kms(struct drm_device *dev, bool suspend,
> */
> radeon_bo_evict_vram(rdev);
>
> - radeon_agp_suspend(rdev);
> -
> pci_save_state(dev->pdev);
> if (freeze && rdev->family >= CHIP_CEDAR && !(rdev->flags & RADEON_IS_IGP)) {
> rdev->asic->asic_reset(rdev, true);
> @@ -1687,8 +1668,6 @@ int radeon_resume_kms(struct drm_device *dev, bool resume, bool fbcon)
> return -1;
> }
> }
> - /* resume AGP if in use */
> - radeon_agp_resume(rdev);
> radeon_resume(rdev);
>
> r = radeon_ib_ring_tests(rdev);
> diff --git a/drivers/gpu/drm/radeon/radeon_drv.c b/drivers/gpu/drm/radeon/radeon_drv.c
> index bbb0883e8ce6..62a5dfaf990b 100644
> --- a/drivers/gpu/drm/radeon/radeon_drv.c
> +++ b/drivers/gpu/drm/radeon/radeon_drv.c
> @@ -171,12 +171,6 @@ int radeon_no_wb;
> int radeon_modeset = -1;
> int radeon_dynclks = -1;
> int radeon_r4xx_atom = 0;
> -#ifdef __powerpc__
> -/* Default to PCI on PowerPC (fdo #95017) */
> -int radeon_agpmode = -1;
> -#else
> -int radeon_agpmode = 0;
> -#endif
> int radeon_vram_limit = 0;
> int radeon_gart_size = -1; /* auto */
> int radeon_benchmarking = 0;
> @@ -220,9 +214,6 @@ module_param_named(r4xx_atom, radeon_r4xx_atom, int, 0444);
> MODULE_PARM_DESC(vramlimit, "Restrict VRAM for testing, in megabytes");
> module_param_named(vramlimit, radeon_vram_limit, int, 0600);
>
> -MODULE_PARM_DESC(agpmode, "AGP Mode (-1 == PCI)");
> -module_param_named(agpmode, radeon_agpmode, int, 0444);
> -
> MODULE_PARM_DESC(gartsize, "Size of PCIE/IGP gart to setup in megabytes (32, 64, etc., -1 = auto)");
> module_param_named(gartsize, radeon_gart_size, int, 0600);
>
> diff --git a/drivers/gpu/drm/radeon/radeon_ttm.c b/drivers/gpu/drm/radeon/radeon_ttm.c
> index 5d50c9edbe80..21bb3706c13c 100644
> --- a/drivers/gpu/drm/radeon/radeon_ttm.c
> +++ b/drivers/gpu/drm/radeon/radeon_ttm.c
> @@ -86,20 +86,6 @@ static int radeon_init_mem_type(struct ttm_bo_device *bdev, uint32_t type,
> man->available_caching = TTM_PL_MASK_CACHING;
> man->default_caching = TTM_PL_FLAG_CACHED;
> man->flags = TTM_MEMTYPE_FLAG_MAPPABLE | TTM_MEMTYPE_FLAG_CMA;
> -#if IS_ENABLED(CONFIG_AGP)
> - if (rdev->flags & RADEON_IS_AGP) {
> - if (!rdev->ddev->agp) {
> - DRM_ERROR("AGP is not enabled for memory type %u\n",
> - (unsigned)type);
> - return -EINVAL;
> - }
> - if (!rdev->ddev->agp->cant_use_aperture)
> - man->flags = TTM_MEMTYPE_FLAG_MAPPABLE;
> - man->available_caching = TTM_PL_FLAG_UNCACHED |
> - TTM_PL_FLAG_WC;
> - man->default_caching = TTM_PL_FLAG_WC;
> - }
> -#endif
> break;
> case TTM_PL_VRAM:
> /* "On-card" video ram */
> @@ -411,14 +397,6 @@ static int radeon_ttm_io_mem_reserve(struct ttm_bo_device *bdev, struct ttm_mem_
> /* system memory */
> return 0;
> case TTM_PL_TT:
> -#if IS_ENABLED(CONFIG_AGP)
> - if (rdev->flags & RADEON_IS_AGP) {
> - /* RADEON_IS_AGP is set only if AGP is active */
> - mem->bus.offset = mem->start << PAGE_SHIFT;
> - mem->bus.base = rdev->mc.agp_base;
> - mem->bus.is_iomem = !rdev->ddev->agp->cant_use_aperture;
> - }
> -#endif
> break;
> case TTM_PL_VRAM:
> mem->bus.offset = mem->start << PAGE_SHIFT;
> @@ -631,12 +609,6 @@ static struct ttm_tt *radeon_ttm_tt_create(struct ttm_buffer_object *bo,
> struct radeon_ttm_tt *gtt;
>
> rdev = radeon_get_rdev(bo->bdev);
> -#if IS_ENABLED(CONFIG_AGP)
> - if (rdev->flags & RADEON_IS_AGP) {
> - return ttm_agp_tt_create(bo, rdev->ddev->agp->bridge,
> - page_flags);
> - }
> -#endif
>
> gtt = kzalloc(sizeof(struct radeon_ttm_tt), GFP_KERNEL);
> if (gtt == NULL) {
> @@ -683,11 +655,6 @@ static int radeon_ttm_tt_populate(struct ttm_tt *ttm,
> }
>
> rdev = radeon_get_rdev(ttm->bdev);
> -#if IS_ENABLED(CONFIG_AGP)
> - if (rdev->flags & RADEON_IS_AGP) {
> - return ttm_agp_tt_populate(ttm, ctx);
> - }
> -#endif
>
> #ifdef CONFIG_SWIOTLB
> if (rdev->need_swiotlb && swiotlb_nr_tbl()) {
> @@ -714,12 +681,6 @@ static void radeon_ttm_tt_unpopulate(struct ttm_tt *ttm)
> return;
>
> rdev = radeon_get_rdev(ttm->bdev);
> -#if IS_ENABLED(CONFIG_AGP)
> - if (rdev->flags & RADEON_IS_AGP) {
> - ttm_agp_tt_unpopulate(ttm);
> - return;
> - }
> -#endif
>
> #ifdef CONFIG_SWIOTLB
> if (rdev->need_swiotlb && swiotlb_nr_tbl()) {
> diff --git a/drivers/gpu/drm/radeon/rv515.c b/drivers/gpu/drm/radeon/rv515.c
> index 147e5cf8348d..8a2f16320869 100644
> --- a/drivers/gpu/drm/radeon/rv515.c
> +++ b/drivers/gpu/drm/radeon/rv515.c
> @@ -622,7 +622,6 @@ void rv515_fini(struct radeon_device *rdev)
> radeon_ib_pool_fini(rdev);
> radeon_gem_fini(rdev);
> rv370_pcie_gart_fini(rdev);
> - radeon_agp_fini(rdev);
> radeon_irq_kms_fini(rdev);
> radeon_fence_driver_fini(rdev);
> radeon_bo_fini(rdev);
> @@ -667,13 +666,6 @@ int rv515_init(struct radeon_device *rdev)
> return -EINVAL;
> /* Initialize clocks */
> radeon_get_clock_info(rdev->ddev);
> - /* initialize AGP */
> - if (rdev->flags & RADEON_IS_AGP) {
> - r = radeon_agp_init(rdev);
> - if (r) {
> - radeon_agp_disable(rdev);
> - }
> - }
> /* initialize memory controller */
> rv515_mc_init(rdev);
> rv515_debugfs(rdev);
> @@ -703,7 +695,6 @@ int rv515_init(struct radeon_device *rdev)
> radeon_ib_pool_fini(rdev);
> radeon_irq_kms_fini(rdev);
> rv370_pcie_gart_fini(rdev);
> - radeon_agp_fini(rdev);
> rdev->accel_working = false;
> }
> return 0;
> diff --git a/drivers/gpu/drm/radeon/rv770.c b/drivers/gpu/drm/radeon/rv770.c
> index 21f653ae1e1b..20bf54266f24 100644
> --- a/drivers/gpu/drm/radeon/rv770.c
> +++ b/drivers/gpu/drm/radeon/rv770.c
> @@ -1943,12 +1943,6 @@ int rv770_init(struct radeon_device *rdev)
> r = radeon_fence_driver_init(rdev);
> if (r)
> return r;
> - /* initialize AGP */
> - if (rdev->flags & RADEON_IS_AGP) {
> - r = radeon_agp_init(rdev);
> - if (r)
> - radeon_agp_disable(rdev);
> - }
> r = rv770_mc_init(rdev);
> if (r)
> return r;
> @@ -2015,7 +2009,6 @@ void rv770_fini(struct radeon_device *rdev)
> r600_vram_scratch_fini(rdev);
> radeon_gem_fini(rdev);
> radeon_fence_driver_fini(rdev);
> - radeon_agp_fini(rdev);
> radeon_bo_fini(rdev);
> radeon_atombios_fini(rdev);
> kfree(rdev->bios);
> --
> 2.17.1
>
> _______________________________________________
> amd-gfx mailing list
> amd-gfx@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/amd-gfx
_______________________________________________
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dri-devel@lists.freedesktop.org
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^ permalink raw reply [flat|nested] 81+ messages in thread
* Re: [PATCH 1/3] drm/radeon: remove AGP support
@ 2020-05-11 20:12 ` Alex Deucher
0 siblings, 0 replies; 81+ messages in thread
From: Alex Deucher @ 2020-05-11 20:12 UTC (permalink / raw)
To: Christian König; +Cc: nouveau, amd-gfx list, Maling list - DRI developers
On Mon, May 11, 2020 at 1:17 PM Christian König
<ckoenig.leichtzumerken@gmail.com> wrote:
>
> AGP is deprecated for 10+ years now and not used any more on modern hardware.
>
> Old hardware should continue to work in PCI mode.
Might want to clarify that there is no loss of functionality here.
Something like:
"There is no loss of functionality here. GPUs will continue to
function. This just drops the use of the AGP MMU in the chipset in
favor of the MMU on the device which has proven to be much more
reliable. Due to its unreliability, AGP support has been disabled on
PowerPC for years already so there is no change on PowerPC."
With that updated, patches 1, 3:
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
patch 2:
Acked-by: Alex Deucher <alexander.deucher@amd.com>
>
> Signed-off-by: Christian König <christian.koenig@amd.com>
> ---
> drivers/gpu/drm/radeon/Makefile | 4 +-
> drivers/gpu/drm/radeon/evergreen.c | 7 -
> drivers/gpu/drm/radeon/r100.c | 10 +-
> drivers/gpu/drm/radeon/r300.c | 9 -
> drivers/gpu/drm/radeon/r420.c | 9 -
> drivers/gpu/drm/radeon/r520.c | 8 -
> drivers/gpu/drm/radeon/r600.c | 6 -
> drivers/gpu/drm/radeon/radeon.h | 11 -
> drivers/gpu/drm/radeon/radeon_agp.c | 290 -------------------------
> drivers/gpu/drm/radeon/radeon_device.c | 23 +-
> drivers/gpu/drm/radeon/radeon_drv.c | 9 -
> drivers/gpu/drm/radeon/radeon_ttm.c | 39 ----
> drivers/gpu/drm/radeon/rv515.c | 9 -
> drivers/gpu/drm/radeon/rv770.c | 7 -
> 14 files changed, 4 insertions(+), 437 deletions(-)
> delete mode 100644 drivers/gpu/drm/radeon/radeon_agp.c
>
> diff --git a/drivers/gpu/drm/radeon/Makefile b/drivers/gpu/drm/radeon/Makefile
> index c693b2ca0329..77429cfd303e 100644
> --- a/drivers/gpu/drm/radeon/Makefile
> +++ b/drivers/gpu/drm/radeon/Makefile
> @@ -61,8 +61,8 @@ radeon-y := radeon_drv.o
>
> # add KMS driver
> radeon-y += radeon_device.o radeon_asic.o radeon_kms.o \
> - radeon_atombios.o radeon_agp.o atombios_crtc.o radeon_combios.o \
> - atom.o radeon_fence.o radeon_ttm.o radeon_object.o radeon_gart.o \
> + radeon_atombios.o atombios_crtc.o radeon_combios.o atom.o \
> + radeon_fence.o radeon_ttm.o radeon_object.o radeon_gart.o \
> radeon_legacy_crtc.o radeon_legacy_encoders.o radeon_connectors.o \
> radeon_encoders.o radeon_display.o radeon_cursor.o radeon_i2c.o \
> radeon_clocks.o radeon_fb.o radeon_gem.o radeon_ring.o radeon_irq_kms.o \
> diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c
> index 14d90dc376e7..66b3d9a2c6dd 100644
> --- a/drivers/gpu/drm/radeon/evergreen.c
> +++ b/drivers/gpu/drm/radeon/evergreen.c
> @@ -5216,12 +5216,6 @@ int evergreen_init(struct radeon_device *rdev)
> r = radeon_fence_driver_init(rdev);
> if (r)
> return r;
> - /* initialize AGP */
> - if (rdev->flags & RADEON_IS_AGP) {
> - r = radeon_agp_init(rdev);
> - if (r)
> - radeon_agp_disable(rdev);
> - }
> /* initialize memory controller */
> r = evergreen_mc_init(rdev);
> if (r)
> @@ -5315,7 +5309,6 @@ void evergreen_fini(struct radeon_device *rdev)
> r600_vram_scratch_fini(rdev);
> radeon_gem_fini(rdev);
> radeon_fence_driver_fini(rdev);
> - radeon_agp_fini(rdev);
> radeon_bo_fini(rdev);
> radeon_atombios_fini(rdev);
> kfree(rdev->bios);
> diff --git a/drivers/gpu/drm/radeon/r100.c b/drivers/gpu/drm/radeon/r100.c
> index 24c8db673931..320b1b40a30a 100644
> --- a/drivers/gpu/drm/radeon/r100.c
> +++ b/drivers/gpu/drm/radeon/r100.c
> @@ -3382,7 +3382,7 @@ void r100_bandwidth_update(struct radeon_device *rdev)
>
> if (rdev->flags & RADEON_IS_AGP) {
> fixed20_12 agpmode_ff;
> - agpmode_ff.full = dfixed_const(radeon_agpmode);
> + agpmode_ff.full = dfixed_const(0);
> temp_ff.full = dfixed_const_666(16);
> sclk_eff_ff.full -= dfixed_mul(agpmode_ff, temp_ff);
> }
> @@ -3992,7 +3992,6 @@ void r100_fini(struct radeon_device *rdev)
> radeon_gem_fini(rdev);
> if (rdev->flags & RADEON_IS_PCI)
> r100_pci_gart_fini(rdev);
> - radeon_agp_fini(rdev);
> radeon_irq_kms_fini(rdev);
> radeon_fence_driver_fini(rdev);
> radeon_bo_fini(rdev);
> @@ -4068,13 +4067,6 @@ int r100_init(struct radeon_device *rdev)
> r100_errata(rdev);
> /* Initialize clocks */
> radeon_get_clock_info(rdev->ddev);
> - /* initialize AGP */
> - if (rdev->flags & RADEON_IS_AGP) {
> - r = radeon_agp_init(rdev);
> - if (r) {
> - radeon_agp_disable(rdev);
> - }
> - }
> /* initialize VRAM */
> r100_mc_init(rdev);
> /* Fence driver */
> diff --git a/drivers/gpu/drm/radeon/r300.c b/drivers/gpu/drm/radeon/r300.c
> index 3b7ead5be5bf..afd688629cf9 100644
> --- a/drivers/gpu/drm/radeon/r300.c
> +++ b/drivers/gpu/drm/radeon/r300.c
> @@ -1498,7 +1498,6 @@ void r300_fini(struct radeon_device *rdev)
> rv370_pcie_gart_fini(rdev);
> if (rdev->flags & RADEON_IS_PCI)
> r100_pci_gart_fini(rdev);
> - radeon_agp_fini(rdev);
> radeon_irq_kms_fini(rdev);
> radeon_fence_driver_fini(rdev);
> radeon_bo_fini(rdev);
> @@ -1547,13 +1546,6 @@ int r300_init(struct radeon_device *rdev)
> r300_errata(rdev);
> /* Initialize clocks */
> radeon_get_clock_info(rdev->ddev);
> - /* initialize AGP */
> - if (rdev->flags & RADEON_IS_AGP) {
> - r = radeon_agp_init(rdev);
> - if (r) {
> - radeon_agp_disable(rdev);
> - }
> - }
> /* initialize memory controller */
> r300_mc_init(rdev);
> /* Fence driver */
> @@ -1592,7 +1584,6 @@ int r300_init(struct radeon_device *rdev)
> rv370_pcie_gart_fini(rdev);
> if (rdev->flags & RADEON_IS_PCI)
> r100_pci_gart_fini(rdev);
> - radeon_agp_fini(rdev);
> rdev->accel_working = false;
> }
> return 0;
> diff --git a/drivers/gpu/drm/radeon/r420.c b/drivers/gpu/drm/radeon/r420.c
> index 1d4c04e0a449..3cb337dacd56 100644
> --- a/drivers/gpu/drm/radeon/r420.c
> +++ b/drivers/gpu/drm/radeon/r420.c
> @@ -366,7 +366,6 @@ void r420_fini(struct radeon_device *rdev)
> rv370_pcie_gart_fini(rdev);
> if (rdev->flags & RADEON_IS_PCI)
> r100_pci_gart_fini(rdev);
> - radeon_agp_fini(rdev);
> radeon_irq_kms_fini(rdev);
> radeon_fence_driver_fini(rdev);
> radeon_bo_fini(rdev);
> @@ -419,13 +418,6 @@ int r420_init(struct radeon_device *rdev)
>
> /* Initialize clocks */
> radeon_get_clock_info(rdev->ddev);
> - /* initialize AGP */
> - if (rdev->flags & RADEON_IS_AGP) {
> - r = radeon_agp_init(rdev);
> - if (r) {
> - radeon_agp_disable(rdev);
> - }
> - }
> /* initialize memory controller */
> r300_mc_init(rdev);
> r420_debugfs(rdev);
> @@ -470,7 +462,6 @@ int r420_init(struct radeon_device *rdev)
> rv370_pcie_gart_fini(rdev);
> if (rdev->flags & RADEON_IS_PCI)
> r100_pci_gart_fini(rdev);
> - radeon_agp_fini(rdev);
> rdev->accel_working = false;
> }
> return 0;
> diff --git a/drivers/gpu/drm/radeon/r520.c b/drivers/gpu/drm/radeon/r520.c
> index fc78e64ae727..76ac87d72406 100644
> --- a/drivers/gpu/drm/radeon/r520.c
> +++ b/drivers/gpu/drm/radeon/r520.c
> @@ -288,13 +288,6 @@ int r520_init(struct radeon_device *rdev)
> }
> /* Initialize clocks */
> radeon_get_clock_info(rdev->ddev);
> - /* initialize AGP */
> - if (rdev->flags & RADEON_IS_AGP) {
> - r = radeon_agp_init(rdev);
> - if (r) {
> - radeon_agp_disable(rdev);
> - }
> - }
> /* initialize memory controller */
> r520_mc_init(rdev);
> rv515_debugfs(rdev);
> @@ -324,7 +317,6 @@ int r520_init(struct radeon_device *rdev)
> radeon_ib_pool_fini(rdev);
> radeon_irq_kms_fini(rdev);
> rv370_pcie_gart_fini(rdev);
> - radeon_agp_fini(rdev);
> rdev->accel_working = false;
> }
> return 0;
> diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c
> index d9a33ca768f3..4a5ac15893c2 100644
> --- a/drivers/gpu/drm/radeon/r600.c
> +++ b/drivers/gpu/drm/radeon/r600.c
> @@ -3286,11 +3286,6 @@ int r600_init(struct radeon_device *rdev)
> r = radeon_fence_driver_init(rdev);
> if (r)
> return r;
> - if (rdev->flags & RADEON_IS_AGP) {
> - r = radeon_agp_init(rdev);
> - if (r)
> - radeon_agp_disable(rdev);
> - }
> r = r600_mc_init(rdev);
> if (r)
> return r;
> @@ -3353,7 +3348,6 @@ void r600_fini(struct radeon_device *rdev)
> radeon_irq_kms_fini(rdev);
> r600_pcie_gart_fini(rdev);
> r600_vram_scratch_fini(rdev);
> - radeon_agp_fini(rdev);
> radeon_gem_fini(rdev);
> radeon_fence_driver_fini(rdev);
> radeon_bo_fini(rdev);
> diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h
> index 30e32adc1fc6..377e1403b134 100644
> --- a/drivers/gpu/drm/radeon/radeon.h
> +++ b/drivers/gpu/drm/radeon/radeon.h
> @@ -91,7 +91,6 @@ extern int radeon_no_wb;
> extern int radeon_modeset;
> extern int radeon_dynclks;
> extern int radeon_r4xx_atom;
> -extern int radeon_agpmode;
> extern int radeon_vram_limit;
> extern int radeon_gart_size;
> extern int radeon_benchmarking;
> @@ -1116,16 +1115,6 @@ typedef int (*radeon_packet0_check_t)(struct radeon_cs_parser *p,
> typedef int (*radeon_packet3_check_t)(struct radeon_cs_parser *p,
> struct radeon_cs_packet *pkt);
>
> -
> -/*
> - * AGP
> - */
> -int radeon_agp_init(struct radeon_device *rdev);
> -void radeon_agp_resume(struct radeon_device *rdev);
> -void radeon_agp_suspend(struct radeon_device *rdev);
> -void radeon_agp_fini(struct radeon_device *rdev);
> -
> -
> /*
> * Writeback
> */
> diff --git a/drivers/gpu/drm/radeon/radeon_agp.c b/drivers/gpu/drm/radeon/radeon_agp.c
> deleted file mode 100644
> index 0aca7bdf54c7..000000000000
> --- a/drivers/gpu/drm/radeon/radeon_agp.c
> +++ /dev/null
> @@ -1,290 +0,0 @@
> -/*
> - * Copyright 2008 Red Hat Inc.
> - * Copyright 2009 Jerome Glisse.
> - *
> - * Permission is hereby granted, free of charge, to any person obtaining a
> - * copy of this software and associated documentation files (the "Software"),
> - * to deal in the Software without restriction, including without limitation
> - * the rights to use, copy, modify, merge, publish, distribute, sublicense,
> - * and/or sell copies of the Software, and to permit persons to whom the
> - * Software is furnished to do so, subject to the following conditions:
> - *
> - * The above copyright notice and this permission notice shall be included in
> - * all copies or substantial portions of the Software.
> - *
> - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
> - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
> - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
> - * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
> - * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
> - * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
> - * OTHER DEALINGS IN THE SOFTWARE.
> - *
> - * Authors:
> - * Dave Airlie
> - * Jerome Glisse <glisse@freedesktop.org>
> - */
> -
> -#include <linux/pci.h>
> -
> -#include <drm/drm_agpsupport.h>
> -#include <drm/drm_device.h>
> -#include <drm/radeon_drm.h>
> -
> -#include "radeon.h"
> -
> -#if IS_ENABLED(CONFIG_AGP)
> -
> -struct radeon_agpmode_quirk {
> - u32 hostbridge_vendor;
> - u32 hostbridge_device;
> - u32 chip_vendor;
> - u32 chip_device;
> - u32 subsys_vendor;
> - u32 subsys_device;
> - u32 default_mode;
> -};
> -
> -static struct radeon_agpmode_quirk radeon_agpmode_quirk_list[] = {
> - /* Intel E7505 Memory Controller Hub / RV350 AR [Radeon 9600XT] Needs AGPMode 4 (deb #515326) */
> - { PCI_VENDOR_ID_INTEL, 0x2550, PCI_VENDOR_ID_ATI, 0x4152, 0x1458, 0x4038, 4},
> - /* Intel 82865G/PE/P DRAM Controller/Host-Hub / Mobility 9800 Needs AGPMode 4 (deb #462590) */
> - { PCI_VENDOR_ID_INTEL, 0x2570, PCI_VENDOR_ID_ATI, 0x4a4e, PCI_VENDOR_ID_DELL, 0x5106, 4},
> - /* Intel 82865G/PE/P DRAM Controller/Host-Hub / RV280 [Radeon 9200 SE] Needs AGPMode 4 (lp #300304) */
> - { PCI_VENDOR_ID_INTEL, 0x2570, PCI_VENDOR_ID_ATI, 0x5964,
> - 0x148c, 0x2073, 4},
> - /* Intel 82855PM Processor to I/O Controller / Mobility M6 LY Needs AGPMode 1 (deb #467235) */
> - { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4c59,
> - PCI_VENDOR_ID_IBM, 0x052f, 1},
> - /* Intel 82855PM host bridge / Mobility 9600 M10 RV350 Needs AGPMode 1 (lp #195051) */
> - { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4e50,
> - PCI_VENDOR_ID_IBM, 0x0550, 1},
> - /* Intel 82855PM host bridge / RV250/M9 GL [Mobility FireGL 9000/Radeon 9000] needs AGPMode 1 (Thinkpad T40p) */
> - { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4c66,
> - PCI_VENDOR_ID_IBM, 0x054d, 1},
> - /* Intel 82855PM host bridge / Mobility M7 needs AGPMode 1 */
> - { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4c57,
> - PCI_VENDOR_ID_IBM, 0x0530, 1},
> - /* Intel 82855PM host bridge / FireGL Mobility T2 RV350 Needs AGPMode 2 (fdo #20647) */
> - { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4e54,
> - PCI_VENDOR_ID_IBM, 0x054f, 2},
> - /* Intel 82855PM host bridge / Mobility M9+ / VaioPCG-V505DX Needs AGPMode 2 (fdo #17928) */
> - { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x5c61,
> - PCI_VENDOR_ID_SONY, 0x816b, 2},
> - /* Intel 82855PM Processor to I/O Controller / Mobility M9+ Needs AGPMode 8 (phoronix forum) */
> - { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x5c61,
> - PCI_VENDOR_ID_SONY, 0x8195, 8},
> - /* Intel 82830 830 Chipset Host Bridge / Mobility M6 LY Needs AGPMode 2 (fdo #17360)*/
> - { PCI_VENDOR_ID_INTEL, 0x3575, PCI_VENDOR_ID_ATI, 0x4c59,
> - PCI_VENDOR_ID_DELL, 0x00e3, 2},
> - /* Intel 82852/82855 host bridge / Mobility FireGL 9000 RV250 Needs AGPMode 1 (lp #296617) */
> - { PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4c66,
> - PCI_VENDOR_ID_DELL, 0x0149, 1},
> - /* Intel 82855PM host bridge / Mobility FireGL 9000 RV250 Needs AGPMode 1 for suspend/resume */
> - { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4c66,
> - PCI_VENDOR_ID_IBM, 0x0531, 1},
> - /* Intel 82852/82855 host bridge / Mobility 9600 M10 RV350 Needs AGPMode 1 (deb #467460) */
> - { PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4e50,
> - 0x1025, 0x0061, 1},
> - /* Intel 82852/82855 host bridge / Mobility 9600 M10 RV350 Needs AGPMode 1 (lp #203007) */
> - { PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4e50,
> - 0x1025, 0x0064, 1},
> - /* Intel 82852/82855 host bridge / Mobility 9600 M10 RV350 Needs AGPMode 1 (lp #141551) */
> - { PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4e50,
> - PCI_VENDOR_ID_ASUSTEK, 0x1942, 1},
> - /* Intel 82852/82855 host bridge / Mobility 9600/9700 Needs AGPMode 1 (deb #510208) */
> - { PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4e50,
> - 0x10cf, 0x127f, 1},
> - /* ASRock K7VT4A+ AGP 8x / ATI Radeon 9250 AGP Needs AGPMode 4 (lp #133192) */
> - { 0x1849, 0x3189, PCI_VENDOR_ID_ATI, 0x5960,
> - 0x1787, 0x5960, 4},
> - /* VIA K8M800 Host Bridge / RV280 [Radeon 9200 PRO] Needs AGPMode 4 (fdo #12544) */
> - { PCI_VENDOR_ID_VIA, 0x0204, PCI_VENDOR_ID_ATI, 0x5960,
> - 0x17af, 0x2020, 4},
> - /* VIA KT880 Host Bridge / RV350 [Radeon 9550] Needs AGPMode 4 (fdo #19981) */
> - { PCI_VENDOR_ID_VIA, 0x0269, PCI_VENDOR_ID_ATI, 0x4153,
> - PCI_VENDOR_ID_ASUSTEK, 0x003c, 4},
> - /* VIA VT8363 Host Bridge / R200 QL [Radeon 8500] Needs AGPMode 2 (lp #141551) */
> - { PCI_VENDOR_ID_VIA, 0x0305, PCI_VENDOR_ID_ATI, 0x514c,
> - PCI_VENDOR_ID_ATI, 0x013a, 2},
> - /* VIA VT82C693A Host Bridge / RV280 [Radeon 9200 PRO] Needs AGPMode 2 (deb #515512) */
> - { PCI_VENDOR_ID_VIA, 0x0691, PCI_VENDOR_ID_ATI, 0x5960,
> - PCI_VENDOR_ID_ASUSTEK, 0x004c, 2},
> - /* VIA VT82C693A Host Bridge / RV280 [Radeon 9200 PRO] Needs AGPMode 2 */
> - { PCI_VENDOR_ID_VIA, 0x0691, PCI_VENDOR_ID_ATI, 0x5960,
> - PCI_VENDOR_ID_ASUSTEK, 0x0054, 2},
> - /* VIA VT8377 Host Bridge / R200 QM [Radeon 9100] Needs AGPMode 4 (deb #461144) */
> - { PCI_VENDOR_ID_VIA, 0x3189, PCI_VENDOR_ID_ATI, 0x514d,
> - 0x174b, 0x7149, 4},
> - /* VIA VT8377 Host Bridge / RV280 [Radeon 9200 PRO] Needs AGPMode 4 (lp #312693) */
> - { PCI_VENDOR_ID_VIA, 0x3189, PCI_VENDOR_ID_ATI, 0x5960,
> - 0x1462, 0x0380, 4},
> - /* VIA VT8377 Host Bridge / RV280 Needs AGPMode 4 (ati ML) */
> - { PCI_VENDOR_ID_VIA, 0x3189, PCI_VENDOR_ID_ATI, 0x5964,
> - 0x148c, 0x2073, 4},
> - /* ATI Host Bridge / RV280 [M9+] Needs AGPMode 1 (phoronix forum) */
> - { PCI_VENDOR_ID_ATI, 0xcbb2, PCI_VENDOR_ID_ATI, 0x5c61,
> - PCI_VENDOR_ID_SONY, 0x8175, 1},
> - { 0, 0, 0, 0, 0, 0, 0 },
> -};
> -#endif
> -
> -int radeon_agp_init(struct radeon_device *rdev)
> -{
> -#if IS_ENABLED(CONFIG_AGP)
> - struct radeon_agpmode_quirk *p = radeon_agpmode_quirk_list;
> - struct drm_agp_mode mode;
> - struct drm_agp_info info;
> - uint32_t agp_status;
> - int default_mode;
> - bool is_v3;
> - int ret;
> -
> - /* Acquire AGP. */
> - ret = drm_agp_acquire(rdev->ddev);
> - if (ret) {
> - DRM_ERROR("Unable to acquire AGP: %d\n", ret);
> - return ret;
> - }
> -
> - ret = drm_agp_info(rdev->ddev, &info);
> - if (ret) {
> - drm_agp_release(rdev->ddev);
> - DRM_ERROR("Unable to get AGP info: %d\n", ret);
> - return ret;
> - }
> -
> - if (rdev->ddev->agp->agp_info.aper_size < 32) {
> - drm_agp_release(rdev->ddev);
> - dev_warn(rdev->dev, "AGP aperture too small (%zuM) "
> - "need at least 32M, disabling AGP\n",
> - rdev->ddev->agp->agp_info.aper_size);
> - return -EINVAL;
> - }
> -
> - mode.mode = info.mode;
> - /* chips with the agp to pcie bridge don't have the AGP_STATUS register
> - * Just use the whatever mode the host sets up.
> - */
> - if (rdev->family <= CHIP_RV350)
> - agp_status = (RREG32(RADEON_AGP_STATUS) | RADEON_AGPv3_MODE) & mode.mode;
> - else
> - agp_status = mode.mode;
> - is_v3 = !!(agp_status & RADEON_AGPv3_MODE);
> -
> - if (is_v3) {
> - default_mode = (agp_status & RADEON_AGPv3_8X_MODE) ? 8 : 4;
> - } else {
> - if (agp_status & RADEON_AGP_4X_MODE) {
> - default_mode = 4;
> - } else if (agp_status & RADEON_AGP_2X_MODE) {
> - default_mode = 2;
> - } else {
> - default_mode = 1;
> - }
> - }
> -
> - /* Apply AGPMode Quirks */
> - while (p && p->chip_device != 0) {
> - if (info.id_vendor == p->hostbridge_vendor &&
> - info.id_device == p->hostbridge_device &&
> - rdev->pdev->vendor == p->chip_vendor &&
> - rdev->pdev->device == p->chip_device &&
> - rdev->pdev->subsystem_vendor == p->subsys_vendor &&
> - rdev->pdev->subsystem_device == p->subsys_device) {
> - default_mode = p->default_mode;
> - }
> - ++p;
> - }
> -
> - if (radeon_agpmode > 0) {
> - if ((radeon_agpmode < (is_v3 ? 4 : 1)) ||
> - (radeon_agpmode > (is_v3 ? 8 : 4)) ||
> - (radeon_agpmode & (radeon_agpmode - 1))) {
> - DRM_ERROR("Illegal AGP Mode: %d (valid %s), leaving at %d\n",
> - radeon_agpmode, is_v3 ? "4, 8" : "1, 2, 4",
> - default_mode);
> - radeon_agpmode = default_mode;
> - } else {
> - DRM_INFO("AGP mode requested: %d\n", radeon_agpmode);
> - }
> - } else {
> - radeon_agpmode = default_mode;
> - }
> -
> - mode.mode &= ~RADEON_AGP_MODE_MASK;
> - if (is_v3) {
> - switch (radeon_agpmode) {
> - case 8:
> - mode.mode |= RADEON_AGPv3_8X_MODE;
> - break;
> - case 4:
> - default:
> - mode.mode |= RADEON_AGPv3_4X_MODE;
> - break;
> - }
> - } else {
> - switch (radeon_agpmode) {
> - case 4:
> - mode.mode |= RADEON_AGP_4X_MODE;
> - break;
> - case 2:
> - mode.mode |= RADEON_AGP_2X_MODE;
> - break;
> - case 1:
> - default:
> - mode.mode |= RADEON_AGP_1X_MODE;
> - break;
> - }
> - }
> -
> - mode.mode &= ~RADEON_AGP_FW_MODE; /* disable fw */
> - ret = drm_agp_enable(rdev->ddev, mode);
> - if (ret) {
> - DRM_ERROR("Unable to enable AGP (mode = 0x%lx)\n", mode.mode);
> - drm_agp_release(rdev->ddev);
> - return ret;
> - }
> -
> - rdev->mc.agp_base = rdev->ddev->agp->agp_info.aper_base;
> - rdev->mc.gtt_size = rdev->ddev->agp->agp_info.aper_size << 20;
> - rdev->mc.gtt_start = rdev->mc.agp_base;
> - rdev->mc.gtt_end = rdev->mc.gtt_start + rdev->mc.gtt_size - 1;
> - dev_info(rdev->dev, "GTT: %lluM 0x%08llX - 0x%08llX\n",
> - rdev->mc.gtt_size >> 20, rdev->mc.gtt_start, rdev->mc.gtt_end);
> -
> - /* workaround some hw issues */
> - if (rdev->family < CHIP_R200) {
> - WREG32(RADEON_AGP_CNTL, RREG32(RADEON_AGP_CNTL) | 0x000e0000);
> - }
> - return 0;
> -#else
> - return 0;
> -#endif
> -}
> -
> -void radeon_agp_resume(struct radeon_device *rdev)
> -{
> -#if IS_ENABLED(CONFIG_AGP)
> - int r;
> - if (rdev->flags & RADEON_IS_AGP) {
> - r = radeon_agp_init(rdev);
> - if (r)
> - dev_warn(rdev->dev, "radeon AGP reinit failed\n");
> - }
> -#endif
> -}
> -
> -void radeon_agp_fini(struct radeon_device *rdev)
> -{
> -#if IS_ENABLED(CONFIG_AGP)
> - if (rdev->ddev->agp && rdev->ddev->agp->acquired) {
> - drm_agp_release(rdev->ddev);
> - }
> -#endif
> -}
> -
> -void radeon_agp_suspend(struct radeon_device *rdev)
> -{
> - radeon_agp_fini(rdev);
> -}
> diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c
> index 266e3cbbd09b..12e5c5d81c47 100644
> --- a/drivers/gpu/drm/radeon/radeon_device.c
> +++ b/drivers/gpu/drm/radeon/radeon_device.c
> @@ -1145,22 +1145,6 @@ static void radeon_check_arguments(struct radeon_device *rdev)
> }
> rdev->mc.gtt_size = (uint64_t)radeon_gart_size << 20;
>
> - /* AGP mode can only be -1, 1, 2, 4, 8 */
> - switch (radeon_agpmode) {
> - case -1:
> - case 0:
> - case 1:
> - case 2:
> - case 4:
> - case 8:
> - break;
> - default:
> - dev_warn(rdev->dev, "invalid AGP mode %d (valid mode: "
> - "-1, 0, 1, 2, 4, 8)\n", radeon_agpmode);
> - radeon_agpmode = 0;
> - break;
> - }
> -
> if (!radeon_check_pot_argument(radeon_vm_size)) {
> dev_warn(rdev->dev, "VM size (%d) must be a power of 2\n",
> radeon_vm_size);
> @@ -1348,9 +1332,8 @@ int radeon_device_init(struct radeon_device *rdev,
> rdev->flags &= ~RADEON_IS_AGP;
> }
>
> - if (rdev->flags & RADEON_IS_AGP && radeon_agpmode == -1) {
> + if (rdev->flags & RADEON_IS_AGP)
> radeon_agp_disable(rdev);
> - }
>
> /* Set the internal MC address mask
> * This is the max address of the GPU's
> @@ -1636,8 +1619,6 @@ int radeon_suspend_kms(struct drm_device *dev, bool suspend,
> */
> radeon_bo_evict_vram(rdev);
>
> - radeon_agp_suspend(rdev);
> -
> pci_save_state(dev->pdev);
> if (freeze && rdev->family >= CHIP_CEDAR && !(rdev->flags & RADEON_IS_IGP)) {
> rdev->asic->asic_reset(rdev, true);
> @@ -1687,8 +1668,6 @@ int radeon_resume_kms(struct drm_device *dev, bool resume, bool fbcon)
> return -1;
> }
> }
> - /* resume AGP if in use */
> - radeon_agp_resume(rdev);
> radeon_resume(rdev);
>
> r = radeon_ib_ring_tests(rdev);
> diff --git a/drivers/gpu/drm/radeon/radeon_drv.c b/drivers/gpu/drm/radeon/radeon_drv.c
> index bbb0883e8ce6..62a5dfaf990b 100644
> --- a/drivers/gpu/drm/radeon/radeon_drv.c
> +++ b/drivers/gpu/drm/radeon/radeon_drv.c
> @@ -171,12 +171,6 @@ int radeon_no_wb;
> int radeon_modeset = -1;
> int radeon_dynclks = -1;
> int radeon_r4xx_atom = 0;
> -#ifdef __powerpc__
> -/* Default to PCI on PowerPC (fdo #95017) */
> -int radeon_agpmode = -1;
> -#else
> -int radeon_agpmode = 0;
> -#endif
> int radeon_vram_limit = 0;
> int radeon_gart_size = -1; /* auto */
> int radeon_benchmarking = 0;
> @@ -220,9 +214,6 @@ module_param_named(r4xx_atom, radeon_r4xx_atom, int, 0444);
> MODULE_PARM_DESC(vramlimit, "Restrict VRAM for testing, in megabytes");
> module_param_named(vramlimit, radeon_vram_limit, int, 0600);
>
> -MODULE_PARM_DESC(agpmode, "AGP Mode (-1 == PCI)");
> -module_param_named(agpmode, radeon_agpmode, int, 0444);
> -
> MODULE_PARM_DESC(gartsize, "Size of PCIE/IGP gart to setup in megabytes (32, 64, etc., -1 = auto)");
> module_param_named(gartsize, radeon_gart_size, int, 0600);
>
> diff --git a/drivers/gpu/drm/radeon/radeon_ttm.c b/drivers/gpu/drm/radeon/radeon_ttm.c
> index 5d50c9edbe80..21bb3706c13c 100644
> --- a/drivers/gpu/drm/radeon/radeon_ttm.c
> +++ b/drivers/gpu/drm/radeon/radeon_ttm.c
> @@ -86,20 +86,6 @@ static int radeon_init_mem_type(struct ttm_bo_device *bdev, uint32_t type,
> man->available_caching = TTM_PL_MASK_CACHING;
> man->default_caching = TTM_PL_FLAG_CACHED;
> man->flags = TTM_MEMTYPE_FLAG_MAPPABLE | TTM_MEMTYPE_FLAG_CMA;
> -#if IS_ENABLED(CONFIG_AGP)
> - if (rdev->flags & RADEON_IS_AGP) {
> - if (!rdev->ddev->agp) {
> - DRM_ERROR("AGP is not enabled for memory type %u\n",
> - (unsigned)type);
> - return -EINVAL;
> - }
> - if (!rdev->ddev->agp->cant_use_aperture)
> - man->flags = TTM_MEMTYPE_FLAG_MAPPABLE;
> - man->available_caching = TTM_PL_FLAG_UNCACHED |
> - TTM_PL_FLAG_WC;
> - man->default_caching = TTM_PL_FLAG_WC;
> - }
> -#endif
> break;
> case TTM_PL_VRAM:
> /* "On-card" video ram */
> @@ -411,14 +397,6 @@ static int radeon_ttm_io_mem_reserve(struct ttm_bo_device *bdev, struct ttm_mem_
> /* system memory */
> return 0;
> case TTM_PL_TT:
> -#if IS_ENABLED(CONFIG_AGP)
> - if (rdev->flags & RADEON_IS_AGP) {
> - /* RADEON_IS_AGP is set only if AGP is active */
> - mem->bus.offset = mem->start << PAGE_SHIFT;
> - mem->bus.base = rdev->mc.agp_base;
> - mem->bus.is_iomem = !rdev->ddev->agp->cant_use_aperture;
> - }
> -#endif
> break;
> case TTM_PL_VRAM:
> mem->bus.offset = mem->start << PAGE_SHIFT;
> @@ -631,12 +609,6 @@ static struct ttm_tt *radeon_ttm_tt_create(struct ttm_buffer_object *bo,
> struct radeon_ttm_tt *gtt;
>
> rdev = radeon_get_rdev(bo->bdev);
> -#if IS_ENABLED(CONFIG_AGP)
> - if (rdev->flags & RADEON_IS_AGP) {
> - return ttm_agp_tt_create(bo, rdev->ddev->agp->bridge,
> - page_flags);
> - }
> -#endif
>
> gtt = kzalloc(sizeof(struct radeon_ttm_tt), GFP_KERNEL);
> if (gtt == NULL) {
> @@ -683,11 +655,6 @@ static int radeon_ttm_tt_populate(struct ttm_tt *ttm,
> }
>
> rdev = radeon_get_rdev(ttm->bdev);
> -#if IS_ENABLED(CONFIG_AGP)
> - if (rdev->flags & RADEON_IS_AGP) {
> - return ttm_agp_tt_populate(ttm, ctx);
> - }
> -#endif
>
> #ifdef CONFIG_SWIOTLB
> if (rdev->need_swiotlb && swiotlb_nr_tbl()) {
> @@ -714,12 +681,6 @@ static void radeon_ttm_tt_unpopulate(struct ttm_tt *ttm)
> return;
>
> rdev = radeon_get_rdev(ttm->bdev);
> -#if IS_ENABLED(CONFIG_AGP)
> - if (rdev->flags & RADEON_IS_AGP) {
> - ttm_agp_tt_unpopulate(ttm);
> - return;
> - }
> -#endif
>
> #ifdef CONFIG_SWIOTLB
> if (rdev->need_swiotlb && swiotlb_nr_tbl()) {
> diff --git a/drivers/gpu/drm/radeon/rv515.c b/drivers/gpu/drm/radeon/rv515.c
> index 147e5cf8348d..8a2f16320869 100644
> --- a/drivers/gpu/drm/radeon/rv515.c
> +++ b/drivers/gpu/drm/radeon/rv515.c
> @@ -622,7 +622,6 @@ void rv515_fini(struct radeon_device *rdev)
> radeon_ib_pool_fini(rdev);
> radeon_gem_fini(rdev);
> rv370_pcie_gart_fini(rdev);
> - radeon_agp_fini(rdev);
> radeon_irq_kms_fini(rdev);
> radeon_fence_driver_fini(rdev);
> radeon_bo_fini(rdev);
> @@ -667,13 +666,6 @@ int rv515_init(struct radeon_device *rdev)
> return -EINVAL;
> /* Initialize clocks */
> radeon_get_clock_info(rdev->ddev);
> - /* initialize AGP */
> - if (rdev->flags & RADEON_IS_AGP) {
> - r = radeon_agp_init(rdev);
> - if (r) {
> - radeon_agp_disable(rdev);
> - }
> - }
> /* initialize memory controller */
> rv515_mc_init(rdev);
> rv515_debugfs(rdev);
> @@ -703,7 +695,6 @@ int rv515_init(struct radeon_device *rdev)
> radeon_ib_pool_fini(rdev);
> radeon_irq_kms_fini(rdev);
> rv370_pcie_gart_fini(rdev);
> - radeon_agp_fini(rdev);
> rdev->accel_working = false;
> }
> return 0;
> diff --git a/drivers/gpu/drm/radeon/rv770.c b/drivers/gpu/drm/radeon/rv770.c
> index 21f653ae1e1b..20bf54266f24 100644
> --- a/drivers/gpu/drm/radeon/rv770.c
> +++ b/drivers/gpu/drm/radeon/rv770.c
> @@ -1943,12 +1943,6 @@ int rv770_init(struct radeon_device *rdev)
> r = radeon_fence_driver_init(rdev);
> if (r)
> return r;
> - /* initialize AGP */
> - if (rdev->flags & RADEON_IS_AGP) {
> - r = radeon_agp_init(rdev);
> - if (r)
> - radeon_agp_disable(rdev);
> - }
> r = rv770_mc_init(rdev);
> if (r)
> return r;
> @@ -2015,7 +2009,6 @@ void rv770_fini(struct radeon_device *rdev)
> r600_vram_scratch_fini(rdev);
> radeon_gem_fini(rdev);
> radeon_fence_driver_fini(rdev);
> - radeon_agp_fini(rdev);
> radeon_bo_fini(rdev);
> radeon_atombios_fini(rdev);
> kfree(rdev->bios);
> --
> 2.17.1
>
> _______________________________________________
> amd-gfx mailing list
> amd-gfx@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/amd-gfx
_______________________________________________
amd-gfx mailing list
amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx
^ permalink raw reply [flat|nested] 81+ messages in thread
* Re: [RFC] Remove AGP support from Radeon/Nouveau/TTM
2020-05-11 17:17 ` Christian König
(?)
@ 2020-05-11 20:14 ` Al Dunsmuir
-1 siblings, 0 replies; 81+ messages in thread
From: Al Dunsmuir @ 2020-05-11 20:14 UTC (permalink / raw)
To: Christian König, dri-devel-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW,
amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW,
nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW
On Monday, May 11, 2020, 1:17:19 PM, "Christian König" wrote:
> Hi guys,
> Well let's face it AGP is a total headache to maintain and dead for at least 10+ years.
> We have a lot of x86 specific stuff in the architecture independent
> graphics memory management to get the caching right, abusing the DMA
> API on multiple occasions, need to distinct between AGP and driver specific page tables etc etc...
> So the idea here is to just go ahead and remove the support from
> Radeon and Nouveau and then drop the necessary code from TTM.
> For Radeon this means that we just switch over to the driver
> specific page tables and everything should more or less continue to work.
> For Nouveau I'm not 100% sure, but from the code it of hand looks
> like we can do it similar to Radeon.
> Please comment what you think about this.
> Regards,
> Christian.
Christian,
I would respectfully ask that this change be rejected.
I'm currently an end user on both Intel (32-bit and 64-bit) and PPC
(Macs, IBM Power - BE and LE).
Linux is not just used for modern hardware. There is also a subset of
the user base that uses it for what is often termed retro-computing.
No it's not commercial usage, but no one can seriously claim that that
Linux is for business only.
Often the old hardware is built far batter than the modern junk, and
will continue to run for years to come. This group of folks either has
existing hardware they wish to continue to use, or are acquiring the
same because they are tired of generic locked-down hardware.
A significant percentage of the video hardware that falls in the retro
category uses the AGP video bus. Removing that support for those cases
where it works would severely limit performance and in some cases
functionality. This can mean the difference between being able to run
an application, or having it fail.
There are multiple active Linux distributions for PPC Macs. Many folks
are moving from running an original Mac OS X because of the recent
migration of most Web services to new encryption protocols (TLS 1.2,
SSL, etc.) which can not be practically supported by browsers on that
OS - even the open source ones. Linux on that same hardware provides
the opportunity to work online with current protocols and ensure that
they are reasonably secure.
Another group that fits in the retro category is those folks with
older PC hardware who are not migrating to the latest Microsoft OS,
but instead want to move to Linux.
Some folks suggest the retro folks use an older unmaintained Linux
version. That's just not appropriate nor reasonable, again from either
a security and protocol point of view.
Myself? I'm a full-time C programmer and Electrical Engineer. My
current work project is about 400KLOC. I've done some work on PC and
embedded video hardware and software in the past.
My aim is to start out by helping to test the video drivers (on both
PC and MAC hardware), and as I gain more knowledge become part of the
effort to bring the drivers to the older hardware into a better form
(in kernel drivers VS user-space).
Over the last few years I have been collecting a significant (~40)
number of video cards of various flavors. Some PCI, but the majority
evenly divided between AGP and PCI-X. Most are ATI/Radeon (Mach64+
through R7) with some Nvidia, Matrox and a few others (Chrome and even
a Number Nine). I try to have both PC and Mac variants of the same
card where-ever possible to make comparisons across architectures
easier. This year I have acquired some of the last Sapphire Radeon AGP
cards (HD3xxx, HD4xxx). I'm a frequent flyer on eBay and Kijiji.
I've got lots of Macs (PCI, AGP and PCI-X) and a number of full PC
systems. I'm setting up a number of dedicated test bench rigs (and
full systems) specifically for the video testing. Most are AMD 64-bit
capable, but also Intel. Finally, there are a few embedded systems
(AMD and a C3).
From the programming side, Amazon has been a good source on older
editions of computer graphics books, which should provide background
knowledge to help me in my journey.
One glitch is that I'm partway through eye surgery (cornea + cataracts),
and my final operation is held up due to COVID-19. After things get
back to more of a normal state and that can be completed, my progress
should be a lot smoother.
I hope this puts another prospective on your suggested change, from a
Linux enthusiast and programmer whose usage set is far different from
your own. For that group of Linux users, I ask that you NOT go ahead
with this change as it would be far more impactful to that groups than
you might think.
Respectfully,
Al Dunsmuir
Al
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amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx
^ permalink raw reply [flat|nested] 81+ messages in thread
* Re: [RFC] Remove AGP support from Radeon/Nouveau/TTM
@ 2020-05-11 20:14 ` Al Dunsmuir
0 siblings, 0 replies; 81+ messages in thread
From: Al Dunsmuir @ 2020-05-11 20:14 UTC (permalink / raw)
To: Christian König, dri-devel, amd-gfx, nouveau
On Monday, May 11, 2020, 1:17:19 PM, "Christian König" wrote:
> Hi guys,
> Well let's face it AGP is a total headache to maintain and dead for at least 10+ years.
> We have a lot of x86 specific stuff in the architecture independent
> graphics memory management to get the caching right, abusing the DMA
> API on multiple occasions, need to distinct between AGP and driver specific page tables etc etc...
> So the idea here is to just go ahead and remove the support from
> Radeon and Nouveau and then drop the necessary code from TTM.
> For Radeon this means that we just switch over to the driver
> specific page tables and everything should more or less continue to work.
> For Nouveau I'm not 100% sure, but from the code it of hand looks
> like we can do it similar to Radeon.
> Please comment what you think about this.
> Regards,
> Christian.
Christian,
I would respectfully ask that this change be rejected.
I'm currently an end user on both Intel (32-bit and 64-bit) and PPC
(Macs, IBM Power - BE and LE).
Linux is not just used for modern hardware. There is also a subset of
the user base that uses it for what is often termed retro-computing.
No it's not commercial usage, but no one can seriously claim that that
Linux is for business only.
Often the old hardware is built far batter than the modern junk, and
will continue to run for years to come. This group of folks either has
existing hardware they wish to continue to use, or are acquiring the
same because they are tired of generic locked-down hardware.
A significant percentage of the video hardware that falls in the retro
category uses the AGP video bus. Removing that support for those cases
where it works would severely limit performance and in some cases
functionality. This can mean the difference between being able to run
an application, or having it fail.
There are multiple active Linux distributions for PPC Macs. Many folks
are moving from running an original Mac OS X because of the recent
migration of most Web services to new encryption protocols (TLS 1.2,
SSL, etc.) which can not be practically supported by browsers on that
OS - even the open source ones. Linux on that same hardware provides
the opportunity to work online with current protocols and ensure that
they are reasonably secure.
Another group that fits in the retro category is those folks with
older PC hardware who are not migrating to the latest Microsoft OS,
but instead want to move to Linux.
Some folks suggest the retro folks use an older unmaintained Linux
version. That's just not appropriate nor reasonable, again from either
a security and protocol point of view.
Myself? I'm a full-time C programmer and Electrical Engineer. My
current work project is about 400KLOC. I've done some work on PC and
embedded video hardware and software in the past.
My aim is to start out by helping to test the video drivers (on both
PC and MAC hardware), and as I gain more knowledge become part of the
effort to bring the drivers to the older hardware into a better form
(in kernel drivers VS user-space).
Over the last few years I have been collecting a significant (~40)
number of video cards of various flavors. Some PCI, but the majority
evenly divided between AGP and PCI-X. Most are ATI/Radeon (Mach64+
through R7) with some Nvidia, Matrox and a few others (Chrome and even
a Number Nine). I try to have both PC and Mac variants of the same
card where-ever possible to make comparisons across architectures
easier. This year I have acquired some of the last Sapphire Radeon AGP
cards (HD3xxx, HD4xxx). I'm a frequent flyer on eBay and Kijiji.
I've got lots of Macs (PCI, AGP and PCI-X) and a number of full PC
systems. I'm setting up a number of dedicated test bench rigs (and
full systems) specifically for the video testing. Most are AMD 64-bit
capable, but also Intel. Finally, there are a few embedded systems
(AMD and a C3).
From the programming side, Amazon has been a good source on older
editions of computer graphics books, which should provide background
knowledge to help me in my journey.
One glitch is that I'm partway through eye surgery (cornea + cataracts),
and my final operation is held up due to COVID-19. After things get
back to more of a normal state and that can be completed, my progress
should be a lot smoother.
I hope this puts another prospective on your suggested change, from a
Linux enthusiast and programmer whose usage set is far different from
your own. For that group of Linux users, I ask that you NOT go ahead
with this change as it would be far more impactful to that groups than
you might think.
Respectfully,
Al Dunsmuir
Al
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 81+ messages in thread
* Re: [RFC] Remove AGP support from Radeon/Nouveau/TTM
@ 2020-05-11 20:14 ` Al Dunsmuir
0 siblings, 0 replies; 81+ messages in thread
From: Al Dunsmuir @ 2020-05-11 20:14 UTC (permalink / raw)
To: Christian König, dri-devel, amd-gfx, nouveau
On Monday, May 11, 2020, 1:17:19 PM, "Christian König" wrote:
> Hi guys,
> Well let's face it AGP is a total headache to maintain and dead for at least 10+ years.
> We have a lot of x86 specific stuff in the architecture independent
> graphics memory management to get the caching right, abusing the DMA
> API on multiple occasions, need to distinct between AGP and driver specific page tables etc etc...
> So the idea here is to just go ahead and remove the support from
> Radeon and Nouveau and then drop the necessary code from TTM.
> For Radeon this means that we just switch over to the driver
> specific page tables and everything should more or less continue to work.
> For Nouveau I'm not 100% sure, but from the code it of hand looks
> like we can do it similar to Radeon.
> Please comment what you think about this.
> Regards,
> Christian.
Christian,
I would respectfully ask that this change be rejected.
I'm currently an end user on both Intel (32-bit and 64-bit) and PPC
(Macs, IBM Power - BE and LE).
Linux is not just used for modern hardware. There is also a subset of
the user base that uses it for what is often termed retro-computing.
No it's not commercial usage, but no one can seriously claim that that
Linux is for business only.
Often the old hardware is built far batter than the modern junk, and
will continue to run for years to come. This group of folks either has
existing hardware they wish to continue to use, or are acquiring the
same because they are tired of generic locked-down hardware.
A significant percentage of the video hardware that falls in the retro
category uses the AGP video bus. Removing that support for those cases
where it works would severely limit performance and in some cases
functionality. This can mean the difference between being able to run
an application, or having it fail.
There are multiple active Linux distributions for PPC Macs. Many folks
are moving from running an original Mac OS X because of the recent
migration of most Web services to new encryption protocols (TLS 1.2,
SSL, etc.) which can not be practically supported by browsers on that
OS - even the open source ones. Linux on that same hardware provides
the opportunity to work online with current protocols and ensure that
they are reasonably secure.
Another group that fits in the retro category is those folks with
older PC hardware who are not migrating to the latest Microsoft OS,
but instead want to move to Linux.
Some folks suggest the retro folks use an older unmaintained Linux
version. That's just not appropriate nor reasonable, again from either
a security and protocol point of view.
Myself? I'm a full-time C programmer and Electrical Engineer. My
current work project is about 400KLOC. I've done some work on PC and
embedded video hardware and software in the past.
My aim is to start out by helping to test the video drivers (on both
PC and MAC hardware), and as I gain more knowledge become part of the
effort to bring the drivers to the older hardware into a better form
(in kernel drivers VS user-space).
Over the last few years I have been collecting a significant (~40)
number of video cards of various flavors. Some PCI, but the majority
evenly divided between AGP and PCI-X. Most are ATI/Radeon (Mach64+
through R7) with some Nvidia, Matrox and a few others (Chrome and even
a Number Nine). I try to have both PC and Mac variants of the same
card where-ever possible to make comparisons across architectures
easier. This year I have acquired some of the last Sapphire Radeon AGP
cards (HD3xxx, HD4xxx). I'm a frequent flyer on eBay and Kijiji.
I've got lots of Macs (PCI, AGP and PCI-X) and a number of full PC
systems. I'm setting up a number of dedicated test bench rigs (and
full systems) specifically for the video testing. Most are AMD 64-bit
capable, but also Intel. Finally, there are a few embedded systems
(AMD and a C3).
From the programming side, Amazon has been a good source on older
editions of computer graphics books, which should provide background
knowledge to help me in my journey.
One glitch is that I'm partway through eye surgery (cornea + cataracts),
and my final operation is held up due to COVID-19. After things get
back to more of a normal state and that can be completed, my progress
should be a lot smoother.
I hope this puts another prospective on your suggested change, from a
Linux enthusiast and programmer whose usage set is far different from
your own. For that group of Linux users, I ask that you NOT go ahead
with this change as it would be far more impactful to that groups than
you might think.
Respectfully,
Al Dunsmuir
Al
_______________________________________________
amd-gfx mailing list
amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx
^ permalink raw reply [flat|nested] 81+ messages in thread
* Re: [RFC] Remove AGP support from Radeon/Nouveau/TTM
2020-05-11 20:14 ` Al Dunsmuir
(?)
@ 2020-05-11 20:27 ` Alex Deucher
-1 siblings, 0 replies; 81+ messages in thread
From: Alex Deucher @ 2020-05-11 20:27 UTC (permalink / raw)
To: Al Dunsmuir
Cc: Christian König, amd-gfx list, Maling list - DRI developers,
nouveau
On Mon, May 11, 2020 at 4:22 PM Al Dunsmuir <al.dunsmuir@sympatico.ca> wrote:
>
> On Monday, May 11, 2020, 1:17:19 PM, "Christian König" wrote:
> > Hi guys,
>
> > Well let's face it AGP is a total headache to maintain and dead for at least 10+ years.
>
> > We have a lot of x86 specific stuff in the architecture independent
> > graphics memory management to get the caching right, abusing the DMA
> > API on multiple occasions, need to distinct between AGP and driver specific page tables etc etc...
>
> > So the idea here is to just go ahead and remove the support from
> > Radeon and Nouveau and then drop the necessary code from TTM.
>
> > For Radeon this means that we just switch over to the driver
> > specific page tables and everything should more or less continue to work.
>
> > For Nouveau I'm not 100% sure, but from the code it of hand looks
> > like we can do it similar to Radeon.
>
> > Please comment what you think about this.
>
> > Regards,
> > Christian.
>
> Christian,
>
> I would respectfully ask that this change be rejected.
>
> I'm currently an end user on both Intel (32-bit and 64-bit) and PPC
> (Macs, IBM Power - BE and LE).
>
> Linux is not just used for modern hardware. There is also a subset of
> the user base that uses it for what is often termed retro-computing.
> No it's not commercial usage, but no one can seriously claim that that
> Linux is for business only.
>
> Often the old hardware is built far batter than the modern junk, and
> will continue to run for years to come. This group of folks either has
> existing hardware they wish to continue to use, or are acquiring the
> same because they are tired of generic locked-down hardware.
>
> A significant percentage of the video hardware that falls in the retro
> category uses the AGP video bus. Removing that support for those cases
> where it works would severely limit performance and in some cases
> functionality. This can mean the difference between being able to run
> an application, or having it fail.
>
Note there is no loss of functionality here, at least on radeon
hardware. It just comes down to which MMU gets used for access to
system memory, the AGP MMU on the chipset or the MMU built into the
GPU. On powerpc hardware, AGP has been particularly unstable, and AGP
has been disabled by default on radeon on powerpc for years now. In
fact, this will probably make older hardware more reliable as it takes
AGP out of the equation.
Alex
> There are multiple active Linux distributions for PPC Macs. Many folks
> are moving from running an original Mac OS X because of the recent
> migration of most Web services to new encryption protocols (TLS 1.2,
> SSL, etc.) which can not be practically supported by browsers on that
> OS - even the open source ones. Linux on that same hardware provides
> the opportunity to work online with current protocols and ensure that
> they are reasonably secure.
>
> Another group that fits in the retro category is those folks with
> older PC hardware who are not migrating to the latest Microsoft OS,
> but instead want to move to Linux.
>
> Some folks suggest the retro folks use an older unmaintained Linux
> version. That's just not appropriate nor reasonable, again from either
> a security and protocol point of view.
>
> Myself? I'm a full-time C programmer and Electrical Engineer. My
> current work project is about 400KLOC. I've done some work on PC and
> embedded video hardware and software in the past.
>
> My aim is to start out by helping to test the video drivers (on both
> PC and MAC hardware), and as I gain more knowledge become part of the
> effort to bring the drivers to the older hardware into a better form
> (in kernel drivers VS user-space).
>
> Over the last few years I have been collecting a significant (~40)
> number of video cards of various flavors. Some PCI, but the majority
> evenly divided between AGP and PCI-X. Most are ATI/Radeon (Mach64+
> through R7) with some Nvidia, Matrox and a few others (Chrome and even
> a Number Nine). I try to have both PC and Mac variants of the same
> card where-ever possible to make comparisons across architectures
> easier. This year I have acquired some of the last Sapphire Radeon AGP
> cards (HD3xxx, HD4xxx). I'm a frequent flyer on eBay and Kijiji.
>
> I've got lots of Macs (PCI, AGP and PCI-X) and a number of full PC
> systems. I'm setting up a number of dedicated test bench rigs (and
> full systems) specifically for the video testing. Most are AMD 64-bit
> capable, but also Intel. Finally, there are a few embedded systems
> (AMD and a C3).
>
> From the programming side, Amazon has been a good source on older
> editions of computer graphics books, which should provide background
> knowledge to help me in my journey.
>
> One glitch is that I'm partway through eye surgery (cornea + cataracts),
> and my final operation is held up due to COVID-19. After things get
> back to more of a normal state and that can be completed, my progress
> should be a lot smoother.
>
> I hope this puts another prospective on your suggested change, from a
> Linux enthusiast and programmer whose usage set is far different from
> your own. For that group of Linux users, I ask that you NOT go ahead
> with this change as it would be far more impactful to that groups than
> you might think.
>
> Respectfully,
> Al Dunsmuir
>
> Al
>
> _______________________________________________
> amd-gfx mailing list
> amd-gfx@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/amd-gfx
_______________________________________________
amd-gfx mailing list
amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx
^ permalink raw reply [flat|nested] 81+ messages in thread
* Re: [RFC] Remove AGP support from Radeon/Nouveau/TTM
@ 2020-05-11 20:27 ` Alex Deucher
0 siblings, 0 replies; 81+ messages in thread
From: Alex Deucher @ 2020-05-11 20:27 UTC (permalink / raw)
To: Al Dunsmuir
Cc: Christian König, amd-gfx list, Maling list - DRI developers,
nouveau
On Mon, May 11, 2020 at 4:22 PM Al Dunsmuir <al.dunsmuir@sympatico.ca> wrote:
>
> On Monday, May 11, 2020, 1:17:19 PM, "Christian König" wrote:
> > Hi guys,
>
> > Well let's face it AGP is a total headache to maintain and dead for at least 10+ years.
>
> > We have a lot of x86 specific stuff in the architecture independent
> > graphics memory management to get the caching right, abusing the DMA
> > API on multiple occasions, need to distinct between AGP and driver specific page tables etc etc...
>
> > So the idea here is to just go ahead and remove the support from
> > Radeon and Nouveau and then drop the necessary code from TTM.
>
> > For Radeon this means that we just switch over to the driver
> > specific page tables and everything should more or less continue to work.
>
> > For Nouveau I'm not 100% sure, but from the code it of hand looks
> > like we can do it similar to Radeon.
>
> > Please comment what you think about this.
>
> > Regards,
> > Christian.
>
> Christian,
>
> I would respectfully ask that this change be rejected.
>
> I'm currently an end user on both Intel (32-bit and 64-bit) and PPC
> (Macs, IBM Power - BE and LE).
>
> Linux is not just used for modern hardware. There is also a subset of
> the user base that uses it for what is often termed retro-computing.
> No it's not commercial usage, but no one can seriously claim that that
> Linux is for business only.
>
> Often the old hardware is built far batter than the modern junk, and
> will continue to run for years to come. This group of folks either has
> existing hardware they wish to continue to use, or are acquiring the
> same because they are tired of generic locked-down hardware.
>
> A significant percentage of the video hardware that falls in the retro
> category uses the AGP video bus. Removing that support for those cases
> where it works would severely limit performance and in some cases
> functionality. This can mean the difference between being able to run
> an application, or having it fail.
>
Note there is no loss of functionality here, at least on radeon
hardware. It just comes down to which MMU gets used for access to
system memory, the AGP MMU on the chipset or the MMU built into the
GPU. On powerpc hardware, AGP has been particularly unstable, and AGP
has been disabled by default on radeon on powerpc for years now. In
fact, this will probably make older hardware more reliable as it takes
AGP out of the equation.
Alex
> There are multiple active Linux distributions for PPC Macs. Many folks
> are moving from running an original Mac OS X because of the recent
> migration of most Web services to new encryption protocols (TLS 1.2,
> SSL, etc.) which can not be practically supported by browsers on that
> OS - even the open source ones. Linux on that same hardware provides
> the opportunity to work online with current protocols and ensure that
> they are reasonably secure.
>
> Another group that fits in the retro category is those folks with
> older PC hardware who are not migrating to the latest Microsoft OS,
> but instead want to move to Linux.
>
> Some folks suggest the retro folks use an older unmaintained Linux
> version. That's just not appropriate nor reasonable, again from either
> a security and protocol point of view.
>
> Myself? I'm a full-time C programmer and Electrical Engineer. My
> current work project is about 400KLOC. I've done some work on PC and
> embedded video hardware and software in the past.
>
> My aim is to start out by helping to test the video drivers (on both
> PC and MAC hardware), and as I gain more knowledge become part of the
> effort to bring the drivers to the older hardware into a better form
> (in kernel drivers VS user-space).
>
> Over the last few years I have been collecting a significant (~40)
> number of video cards of various flavors. Some PCI, but the majority
> evenly divided between AGP and PCI-X. Most are ATI/Radeon (Mach64+
> through R7) with some Nvidia, Matrox and a few others (Chrome and even
> a Number Nine). I try to have both PC and Mac variants of the same
> card where-ever possible to make comparisons across architectures
> easier. This year I have acquired some of the last Sapphire Radeon AGP
> cards (HD3xxx, HD4xxx). I'm a frequent flyer on eBay and Kijiji.
>
> I've got lots of Macs (PCI, AGP and PCI-X) and a number of full PC
> systems. I'm setting up a number of dedicated test bench rigs (and
> full systems) specifically for the video testing. Most are AMD 64-bit
> capable, but also Intel. Finally, there are a few embedded systems
> (AMD and a C3).
>
> From the programming side, Amazon has been a good source on older
> editions of computer graphics books, which should provide background
> knowledge to help me in my journey.
>
> One glitch is that I'm partway through eye surgery (cornea + cataracts),
> and my final operation is held up due to COVID-19. After things get
> back to more of a normal state and that can be completed, my progress
> should be a lot smoother.
>
> I hope this puts another prospective on your suggested change, from a
> Linux enthusiast and programmer whose usage set is far different from
> your own. For that group of Linux users, I ask that you NOT go ahead
> with this change as it would be far more impactful to that groups than
> you might think.
>
> Respectfully,
> Al Dunsmuir
>
> Al
>
> _______________________________________________
> amd-gfx mailing list
> amd-gfx@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/amd-gfx
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 81+ messages in thread
* Re: [RFC] Remove AGP support from Radeon/Nouveau/TTM
@ 2020-05-11 20:27 ` Alex Deucher
0 siblings, 0 replies; 81+ messages in thread
From: Alex Deucher @ 2020-05-11 20:27 UTC (permalink / raw)
To: Al Dunsmuir
Cc: Christian König, amd-gfx list, Maling list - DRI developers,
nouveau
On Mon, May 11, 2020 at 4:22 PM Al Dunsmuir <al.dunsmuir@sympatico.ca> wrote:
>
> On Monday, May 11, 2020, 1:17:19 PM, "Christian König" wrote:
> > Hi guys,
>
> > Well let's face it AGP is a total headache to maintain and dead for at least 10+ years.
>
> > We have a lot of x86 specific stuff in the architecture independent
> > graphics memory management to get the caching right, abusing the DMA
> > API on multiple occasions, need to distinct between AGP and driver specific page tables etc etc...
>
> > So the idea here is to just go ahead and remove the support from
> > Radeon and Nouveau and then drop the necessary code from TTM.
>
> > For Radeon this means that we just switch over to the driver
> > specific page tables and everything should more or less continue to work.
>
> > For Nouveau I'm not 100% sure, but from the code it of hand looks
> > like we can do it similar to Radeon.
>
> > Please comment what you think about this.
>
> > Regards,
> > Christian.
>
> Christian,
>
> I would respectfully ask that this change be rejected.
>
> I'm currently an end user on both Intel (32-bit and 64-bit) and PPC
> (Macs, IBM Power - BE and LE).
>
> Linux is not just used for modern hardware. There is also a subset of
> the user base that uses it for what is often termed retro-computing.
> No it's not commercial usage, but no one can seriously claim that that
> Linux is for business only.
>
> Often the old hardware is built far batter than the modern junk, and
> will continue to run for years to come. This group of folks either has
> existing hardware they wish to continue to use, or are acquiring the
> same because they are tired of generic locked-down hardware.
>
> A significant percentage of the video hardware that falls in the retro
> category uses the AGP video bus. Removing that support for those cases
> where it works would severely limit performance and in some cases
> functionality. This can mean the difference between being able to run
> an application, or having it fail.
>
Note there is no loss of functionality here, at least on radeon
hardware. It just comes down to which MMU gets used for access to
system memory, the AGP MMU on the chipset or the MMU built into the
GPU. On powerpc hardware, AGP has been particularly unstable, and AGP
has been disabled by default on radeon on powerpc for years now. In
fact, this will probably make older hardware more reliable as it takes
AGP out of the equation.
Alex
> There are multiple active Linux distributions for PPC Macs. Many folks
> are moving from running an original Mac OS X because of the recent
> migration of most Web services to new encryption protocols (TLS 1.2,
> SSL, etc.) which can not be practically supported by browsers on that
> OS - even the open source ones. Linux on that same hardware provides
> the opportunity to work online with current protocols and ensure that
> they are reasonably secure.
>
> Another group that fits in the retro category is those folks with
> older PC hardware who are not migrating to the latest Microsoft OS,
> but instead want to move to Linux.
>
> Some folks suggest the retro folks use an older unmaintained Linux
> version. That's just not appropriate nor reasonable, again from either
> a security and protocol point of view.
>
> Myself? I'm a full-time C programmer and Electrical Engineer. My
> current work project is about 400KLOC. I've done some work on PC and
> embedded video hardware and software in the past.
>
> My aim is to start out by helping to test the video drivers (on both
> PC and MAC hardware), and as I gain more knowledge become part of the
> effort to bring the drivers to the older hardware into a better form
> (in kernel drivers VS user-space).
>
> Over the last few years I have been collecting a significant (~40)
> number of video cards of various flavors. Some PCI, but the majority
> evenly divided between AGP and PCI-X. Most are ATI/Radeon (Mach64+
> through R7) with some Nvidia, Matrox and a few others (Chrome and even
> a Number Nine). I try to have both PC and Mac variants of the same
> card where-ever possible to make comparisons across architectures
> easier. This year I have acquired some of the last Sapphire Radeon AGP
> cards (HD3xxx, HD4xxx). I'm a frequent flyer on eBay and Kijiji.
>
> I've got lots of Macs (PCI, AGP and PCI-X) and a number of full PC
> systems. I'm setting up a number of dedicated test bench rigs (and
> full systems) specifically for the video testing. Most are AMD 64-bit
> capable, but also Intel. Finally, there are a few embedded systems
> (AMD and a C3).
>
> From the programming side, Amazon has been a good source on older
> editions of computer graphics books, which should provide background
> knowledge to help me in my journey.
>
> One glitch is that I'm partway through eye surgery (cornea + cataracts),
> and my final operation is held up due to COVID-19. After things get
> back to more of a normal state and that can be completed, my progress
> should be a lot smoother.
>
> I hope this puts another prospective on your suggested change, from a
> Linux enthusiast and programmer whose usage set is far different from
> your own. For that group of Linux users, I ask that you NOT go ahead
> with this change as it would be far more impactful to that groups than
> you might think.
>
> Respectfully,
> Al Dunsmuir
>
> Al
>
> _______________________________________________
> amd-gfx mailing list
> amd-gfx@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/amd-gfx
_______________________________________________
amd-gfx mailing list
amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx
^ permalink raw reply [flat|nested] 81+ messages in thread
* Re: [RFC] Remove AGP support from Radeon/Nouveau/TTM
2020-05-11 20:27 ` Alex Deucher
(?)
@ 2020-05-11 20:43 ` Dave Airlie
-1 siblings, 0 replies; 81+ messages in thread
From: Dave Airlie @ 2020-05-11 20:43 UTC (permalink / raw)
To: Alex Deucher
Cc: Christian König, Al Dunsmuir, Maling list - DRI developers,
amd-gfx list, nouveau
On Tue, 12 May 2020 at 06:28, Alex Deucher <alexdeucher@gmail.com> wrote:
>
> On Mon, May 11, 2020 at 4:22 PM Al Dunsmuir <al.dunsmuir@sympatico.ca> wrote:
> >
> > On Monday, May 11, 2020, 1:17:19 PM, "Christian König" wrote:
> > > Hi guys,
> >
> > > Well let's face it AGP is a total headache to maintain and dead for at least 10+ years.
> >
> > > We have a lot of x86 specific stuff in the architecture independent
> > > graphics memory management to get the caching right, abusing the DMA
> > > API on multiple occasions, need to distinct between AGP and driver specific page tables etc etc...
> >
> > > So the idea here is to just go ahead and remove the support from
> > > Radeon and Nouveau and then drop the necessary code from TTM.
> >
> > > For Radeon this means that we just switch over to the driver
> > > specific page tables and everything should more or less continue to work.
> >
> > > For Nouveau I'm not 100% sure, but from the code it of hand looks
> > > like we can do it similar to Radeon.
> >
> > > Please comment what you think about this.
> >
> > > Regards,
> > > Christian.
> >
> > Christian,
> >
> > I would respectfully ask that this change be rejected.
> >
> > I'm currently an end user on both Intel (32-bit and 64-bit) and PPC
> > (Macs, IBM Power - BE and LE).
> >
> > Linux is not just used for modern hardware. There is also a subset of
> > the user base that uses it for what is often termed retro-computing.
> > No it's not commercial usage, but no one can seriously claim that that
> > Linux is for business only.
> >
> > Often the old hardware is built far batter than the modern junk, and
> > will continue to run for years to come. This group of folks either has
> > existing hardware they wish to continue to use, or are acquiring the
> > same because they are tired of generic locked-down hardware.
> >
> > A significant percentage of the video hardware that falls in the retro
> > category uses the AGP video bus. Removing that support for those cases
> > where it works would severely limit performance and in some cases
> > functionality. This can mean the difference between being able to run
> > an application, or having it fail.
> >
>
> Note there is no loss of functionality here, at least on radeon
> hardware. It just comes down to which MMU gets used for access to
> system memory, the AGP MMU on the chipset or the MMU built into the
> GPU. On powerpc hardware, AGP has been particularly unstable, and AGP
> has been disabled by default on radeon on powerpc for years now. In
> fact, this will probably make older hardware more reliable as it takes
> AGP out of the equation.
>
From memory there is quite a loss in speed though, like pretty severe.
The radeon PCI GART has a single slot TLB, if memory serves.
I think this is going to be a hard sell at this stage, I'm guessing
users will crawl out of the woodwork, I'm sure with 2 hours after I'm
able to access the office, I can boot the 865 AGP box with an rv350 in
it on a modern distro.
Maybe we can find some way to compartmentalise AGP further?
Dave.
_______________________________________________
amd-gfx mailing list
amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx
^ permalink raw reply [flat|nested] 81+ messages in thread
* Re: [RFC] Remove AGP support from Radeon/Nouveau/TTM
@ 2020-05-11 20:43 ` Dave Airlie
0 siblings, 0 replies; 81+ messages in thread
From: Dave Airlie @ 2020-05-11 20:43 UTC (permalink / raw)
To: Alex Deucher
Cc: Christian König, Maling list - DRI developers, amd-gfx list,
nouveau
On Tue, 12 May 2020 at 06:28, Alex Deucher <alexdeucher@gmail.com> wrote:
>
> On Mon, May 11, 2020 at 4:22 PM Al Dunsmuir <al.dunsmuir@sympatico.ca> wrote:
> >
> > On Monday, May 11, 2020, 1:17:19 PM, "Christian König" wrote:
> > > Hi guys,
> >
> > > Well let's face it AGP is a total headache to maintain and dead for at least 10+ years.
> >
> > > We have a lot of x86 specific stuff in the architecture independent
> > > graphics memory management to get the caching right, abusing the DMA
> > > API on multiple occasions, need to distinct between AGP and driver specific page tables etc etc...
> >
> > > So the idea here is to just go ahead and remove the support from
> > > Radeon and Nouveau and then drop the necessary code from TTM.
> >
> > > For Radeon this means that we just switch over to the driver
> > > specific page tables and everything should more or less continue to work.
> >
> > > For Nouveau I'm not 100% sure, but from the code it of hand looks
> > > like we can do it similar to Radeon.
> >
> > > Please comment what you think about this.
> >
> > > Regards,
> > > Christian.
> >
> > Christian,
> >
> > I would respectfully ask that this change be rejected.
> >
> > I'm currently an end user on both Intel (32-bit and 64-bit) and PPC
> > (Macs, IBM Power - BE and LE).
> >
> > Linux is not just used for modern hardware. There is also a subset of
> > the user base that uses it for what is often termed retro-computing.
> > No it's not commercial usage, but no one can seriously claim that that
> > Linux is for business only.
> >
> > Often the old hardware is built far batter than the modern junk, and
> > will continue to run for years to come. This group of folks either has
> > existing hardware they wish to continue to use, or are acquiring the
> > same because they are tired of generic locked-down hardware.
> >
> > A significant percentage of the video hardware that falls in the retro
> > category uses the AGP video bus. Removing that support for those cases
> > where it works would severely limit performance and in some cases
> > functionality. This can mean the difference between being able to run
> > an application, or having it fail.
> >
>
> Note there is no loss of functionality here, at least on radeon
> hardware. It just comes down to which MMU gets used for access to
> system memory, the AGP MMU on the chipset or the MMU built into the
> GPU. On powerpc hardware, AGP has been particularly unstable, and AGP
> has been disabled by default on radeon on powerpc for years now. In
> fact, this will probably make older hardware more reliable as it takes
> AGP out of the equation.
>
From memory there is quite a loss in speed though, like pretty severe.
The radeon PCI GART has a single slot TLB, if memory serves.
I think this is going to be a hard sell at this stage, I'm guessing
users will crawl out of the woodwork, I'm sure with 2 hours after I'm
able to access the office, I can boot the 865 AGP box with an rv350 in
it on a modern distro.
Maybe we can find some way to compartmentalise AGP further?
Dave.
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 81+ messages in thread
* Re: [RFC] Remove AGP support from Radeon/Nouveau/TTM
@ 2020-05-11 20:43 ` Dave Airlie
0 siblings, 0 replies; 81+ messages in thread
From: Dave Airlie @ 2020-05-11 20:43 UTC (permalink / raw)
To: Alex Deucher
Cc: Christian König, Al Dunsmuir, Maling list - DRI developers,
amd-gfx list, nouveau
On Tue, 12 May 2020 at 06:28, Alex Deucher <alexdeucher@gmail.com> wrote:
>
> On Mon, May 11, 2020 at 4:22 PM Al Dunsmuir <al.dunsmuir@sympatico.ca> wrote:
> >
> > On Monday, May 11, 2020, 1:17:19 PM, "Christian König" wrote:
> > > Hi guys,
> >
> > > Well let's face it AGP is a total headache to maintain and dead for at least 10+ years.
> >
> > > We have a lot of x86 specific stuff in the architecture independent
> > > graphics memory management to get the caching right, abusing the DMA
> > > API on multiple occasions, need to distinct between AGP and driver specific page tables etc etc...
> >
> > > So the idea here is to just go ahead and remove the support from
> > > Radeon and Nouveau and then drop the necessary code from TTM.
> >
> > > For Radeon this means that we just switch over to the driver
> > > specific page tables and everything should more or less continue to work.
> >
> > > For Nouveau I'm not 100% sure, but from the code it of hand looks
> > > like we can do it similar to Radeon.
> >
> > > Please comment what you think about this.
> >
> > > Regards,
> > > Christian.
> >
> > Christian,
> >
> > I would respectfully ask that this change be rejected.
> >
> > I'm currently an end user on both Intel (32-bit and 64-bit) and PPC
> > (Macs, IBM Power - BE and LE).
> >
> > Linux is not just used for modern hardware. There is also a subset of
> > the user base that uses it for what is often termed retro-computing.
> > No it's not commercial usage, but no one can seriously claim that that
> > Linux is for business only.
> >
> > Often the old hardware is built far batter than the modern junk, and
> > will continue to run for years to come. This group of folks either has
> > existing hardware they wish to continue to use, or are acquiring the
> > same because they are tired of generic locked-down hardware.
> >
> > A significant percentage of the video hardware that falls in the retro
> > category uses the AGP video bus. Removing that support for those cases
> > where it works would severely limit performance and in some cases
> > functionality. This can mean the difference between being able to run
> > an application, or having it fail.
> >
>
> Note there is no loss of functionality here, at least on radeon
> hardware. It just comes down to which MMU gets used for access to
> system memory, the AGP MMU on the chipset or the MMU built into the
> GPU. On powerpc hardware, AGP has been particularly unstable, and AGP
> has been disabled by default on radeon on powerpc for years now. In
> fact, this will probably make older hardware more reliable as it takes
> AGP out of the equation.
>
From memory there is quite a loss in speed though, like pretty severe.
The radeon PCI GART has a single slot TLB, if memory serves.
I think this is going to be a hard sell at this stage, I'm guessing
users will crawl out of the woodwork, I'm sure with 2 hours after I'm
able to access the office, I can boot the 865 AGP box with an rv350 in
it on a modern distro.
Maybe we can find some way to compartmentalise AGP further?
Dave.
_______________________________________________
amd-gfx mailing list
amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx
^ permalink raw reply [flat|nested] 81+ messages in thread
* Re: [RFC] Remove AGP support from Radeon/Nouveau/TTM
2020-05-11 20:27 ` Alex Deucher
(?)
@ 2020-05-11 20:46 ` Al Dunsmuir
-1 siblings, 0 replies; 81+ messages in thread
From: Al Dunsmuir @ 2020-05-11 20:46 UTC (permalink / raw)
To: Alex Deucher
Cc: Christian König, Maling list - DRI developers, amd-gfx list,
nouveau
On Monday, May 11, 2020, 4:27:55 PM, Alex Deucher wrote:
> On Mon, May 11, 2020 at 4:22 PM Al Dunsmuir <al.dunsmuir@sympatico.ca> wrote:
>>
>> On Monday, May 11, 2020, 1:17:19 PM, "Christian König" wrote:
>> > Hi guys,
>>
>> > Well let's face it AGP is a total headache to maintain and dead for at least 10+ years.
>>
>> > We have a lot of x86 specific stuff in the architecture independent
>> > graphics memory management to get the caching right, abusing the DMA
>> > API on multiple occasions, need to distinct between AGP and driver specific page tables etc etc...
>>
>> > So the idea here is to just go ahead and remove the support from
>> > Radeon and Nouveau and then drop the necessary code from TTM.
>>
>> > For Radeon this means that we just switch over to the driver
>> > specific page tables and everything should more or less continue to work.
>>
>> > For Nouveau I'm not 100% sure, but from the code it of hand looks
>> > like we can do it similar to Radeon.
> Note there is no loss of functionality here, at least on radeon
> hardware. It just comes down to which MMU gets used for access to
> system memory, the AGP MMU on the chipset or the MMU built into the
> GPU. On powerpc hardware, AGP has been particularly unstable, and AGP
> has been disabled by default on radeon on powerpc for years now. In
> fact, this will probably make older hardware more reliable as it takes
> AGP out of the equation.
Alex,
Thanks for the clarification.
If the actual performance impact is little to none, and we end up with
more reliable operation that is certainly beneficial then the change
is indeed for the good.
The Phoronix title screaming "AGP Graphics Card Support Proposed For
Removal From Linux Radeon/NVIDIA Drivers" was neither accurate, nor
helpful.
Al
_______________________________________________
amd-gfx mailing list
amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx
^ permalink raw reply [flat|nested] 81+ messages in thread
* Re: [RFC] Remove AGP support from Radeon/Nouveau/TTM
@ 2020-05-11 20:46 ` Al Dunsmuir
0 siblings, 0 replies; 81+ messages in thread
From: Al Dunsmuir @ 2020-05-11 20:46 UTC (permalink / raw)
To: Alex Deucher
Cc: Christian König, Maling list - DRI developers, amd-gfx list,
nouveau
On Monday, May 11, 2020, 4:27:55 PM, Alex Deucher wrote:
> On Mon, May 11, 2020 at 4:22 PM Al Dunsmuir <al.dunsmuir@sympatico.ca> wrote:
>>
>> On Monday, May 11, 2020, 1:17:19 PM, "Christian König" wrote:
>> > Hi guys,
>>
>> > Well let's face it AGP is a total headache to maintain and dead for at least 10+ years.
>>
>> > We have a lot of x86 specific stuff in the architecture independent
>> > graphics memory management to get the caching right, abusing the DMA
>> > API on multiple occasions, need to distinct between AGP and driver specific page tables etc etc...
>>
>> > So the idea here is to just go ahead and remove the support from
>> > Radeon and Nouveau and then drop the necessary code from TTM.
>>
>> > For Radeon this means that we just switch over to the driver
>> > specific page tables and everything should more or less continue to work.
>>
>> > For Nouveau I'm not 100% sure, but from the code it of hand looks
>> > like we can do it similar to Radeon.
> Note there is no loss of functionality here, at least on radeon
> hardware. It just comes down to which MMU gets used for access to
> system memory, the AGP MMU on the chipset or the MMU built into the
> GPU. On powerpc hardware, AGP has been particularly unstable, and AGP
> has been disabled by default on radeon on powerpc for years now. In
> fact, this will probably make older hardware more reliable as it takes
> AGP out of the equation.
Alex,
Thanks for the clarification.
If the actual performance impact is little to none, and we end up with
more reliable operation that is certainly beneficial then the change
is indeed for the good.
The Phoronix title screaming "AGP Graphics Card Support Proposed For
Removal From Linux Radeon/NVIDIA Drivers" was neither accurate, nor
helpful.
Al
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 81+ messages in thread
* Re: [RFC] Remove AGP support from Radeon/Nouveau/TTM
@ 2020-05-11 20:46 ` Al Dunsmuir
0 siblings, 0 replies; 81+ messages in thread
From: Al Dunsmuir @ 2020-05-11 20:46 UTC (permalink / raw)
To: Alex Deucher
Cc: Christian König, Maling list - DRI developers, amd-gfx list,
nouveau
On Monday, May 11, 2020, 4:27:55 PM, Alex Deucher wrote:
> On Mon, May 11, 2020 at 4:22 PM Al Dunsmuir <al.dunsmuir@sympatico.ca> wrote:
>>
>> On Monday, May 11, 2020, 1:17:19 PM, "Christian König" wrote:
>> > Hi guys,
>>
>> > Well let's face it AGP is a total headache to maintain and dead for at least 10+ years.
>>
>> > We have a lot of x86 specific stuff in the architecture independent
>> > graphics memory management to get the caching right, abusing the DMA
>> > API on multiple occasions, need to distinct between AGP and driver specific page tables etc etc...
>>
>> > So the idea here is to just go ahead and remove the support from
>> > Radeon and Nouveau and then drop the necessary code from TTM.
>>
>> > For Radeon this means that we just switch over to the driver
>> > specific page tables and everything should more or less continue to work.
>>
>> > For Nouveau I'm not 100% sure, but from the code it of hand looks
>> > like we can do it similar to Radeon.
> Note there is no loss of functionality here, at least on radeon
> hardware. It just comes down to which MMU gets used for access to
> system memory, the AGP MMU on the chipset or the MMU built into the
> GPU. On powerpc hardware, AGP has been particularly unstable, and AGP
> has been disabled by default on radeon on powerpc for years now. In
> fact, this will probably make older hardware more reliable as it takes
> AGP out of the equation.
Alex,
Thanks for the clarification.
If the actual performance impact is little to none, and we end up with
more reliable operation that is certainly beneficial then the change
is indeed for the good.
The Phoronix title screaming "AGP Graphics Card Support Proposed For
Removal From Linux Radeon/NVIDIA Drivers" was neither accurate, nor
helpful.
Al
_______________________________________________
amd-gfx mailing list
amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx
^ permalink raw reply [flat|nested] 81+ messages in thread
* Re: [RFC] Remove AGP support from Radeon/Nouveau/TTM
2020-05-11 20:43 ` Dave Airlie
(?)
@ 2020-05-11 20:56 ` Al Dunsmuir
-1 siblings, 0 replies; 81+ messages in thread
From: Al Dunsmuir @ 2020-05-11 20:56 UTC (permalink / raw)
To: Dave Airlie, Alex Deucher
Cc: Christian König, Maling list - DRI developers, amd-gfx list,
nouveau
Hello Dave,
On Monday, May 11, 2020, 4:43:01 PM, Dave Airlie wrote:
> On Tue, 12 May 2020 at 06:28, Alex Deucher <alexdeucher-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>>
>> On Mon, May 11, 2020 at 4:22 PM Al Dunsmuir <al.dunsmuir-rieW9WUcm8FFJ04o6PK0Fg@public.gmane.org> wrote:
>> Note there is no loss of functionality here, at least on radeon
>> hardware. It just comes down to which MMU gets used for access to
>> system memory, the AGP MMU on the chipset or the MMU built into the
>> GPU. On powerpc hardware, AGP has been particularly unstable, and AGP
>> has been disabled by default on radeon on powerpc for years now. In
>> fact, this will probably make older hardware more reliable as it takes
>> AGP out of the equation.
>>
> From memory there is quite a loss in speed though, like pretty severe.
> The radeon PCI GART has a single slot TLB, if memory serves.
> I think this is going to be a hard sell at this stage, I'm guessing
> users will crawl out of the woodwork, I'm sure with 2 hours after I'm
> able to access the office, I can boot the 865 AGP box with an rv350 in
> it on a modern distro.
> Maybe we can find some way to compartmentalise AGP further?
> Dave.
Significantly reduced caching on memory accesses definitely sounds
like something that would be noticeable and objectionable.
I would speculate that this would also vary a lot across chipsets,
depending on the capabilities of the PCI MMU vs the AGP MMU.
In the end, it may be best to leave things as is, or as Dave suggested
try to keep AGP in the picture.
Nothing is ever simple, is it?
Al
^ permalink raw reply [flat|nested] 81+ messages in thread
* Re: [RFC] Remove AGP support from Radeon/Nouveau/TTM
@ 2020-05-11 20:56 ` Al Dunsmuir
0 siblings, 0 replies; 81+ messages in thread
From: Al Dunsmuir @ 2020-05-11 20:56 UTC (permalink / raw)
To: Dave Airlie, Alex Deucher
Cc: Christian König, Maling list - DRI developers, amd-gfx list,
nouveau
Hello Dave,
On Monday, May 11, 2020, 4:43:01 PM, Dave Airlie wrote:
> On Tue, 12 May 2020 at 06:28, Alex Deucher <alexdeucher@gmail.com> wrote:
>>
>> On Mon, May 11, 2020 at 4:22 PM Al Dunsmuir <al.dunsmuir@sympatico.ca> wrote:
>> Note there is no loss of functionality here, at least on radeon
>> hardware. It just comes down to which MMU gets used for access to
>> system memory, the AGP MMU on the chipset or the MMU built into the
>> GPU. On powerpc hardware, AGP has been particularly unstable, and AGP
>> has been disabled by default on radeon on powerpc for years now. In
>> fact, this will probably make older hardware more reliable as it takes
>> AGP out of the equation.
>>
> From memory there is quite a loss in speed though, like pretty severe.
> The radeon PCI GART has a single slot TLB, if memory serves.
> I think this is going to be a hard sell at this stage, I'm guessing
> users will crawl out of the woodwork, I'm sure with 2 hours after I'm
> able to access the office, I can boot the 865 AGP box with an rv350 in
> it on a modern distro.
> Maybe we can find some way to compartmentalise AGP further?
> Dave.
Significantly reduced caching on memory accesses definitely sounds
like something that would be noticeable and objectionable.
I would speculate that this would also vary a lot across chipsets,
depending on the capabilities of the PCI MMU vs the AGP MMU.
In the end, it may be best to leave things as is, or as Dave suggested
try to keep AGP in the picture.
Nothing is ever simple, is it?
Al
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 81+ messages in thread
* Re: [RFC] Remove AGP support from Radeon/Nouveau/TTM
@ 2020-05-11 20:56 ` Al Dunsmuir
0 siblings, 0 replies; 81+ messages in thread
From: Al Dunsmuir @ 2020-05-11 20:56 UTC (permalink / raw)
To: Dave Airlie, Alex Deucher
Cc: Christian König, Maling list - DRI developers, amd-gfx list,
nouveau
Hello Dave,
On Monday, May 11, 2020, 4:43:01 PM, Dave Airlie wrote:
> On Tue, 12 May 2020 at 06:28, Alex Deucher <alexdeucher@gmail.com> wrote:
>>
>> On Mon, May 11, 2020 at 4:22 PM Al Dunsmuir <al.dunsmuir@sympatico.ca> wrote:
>> Note there is no loss of functionality here, at least on radeon
>> hardware. It just comes down to which MMU gets used for access to
>> system memory, the AGP MMU on the chipset or the MMU built into the
>> GPU. On powerpc hardware, AGP has been particularly unstable, and AGP
>> has been disabled by default on radeon on powerpc for years now. In
>> fact, this will probably make older hardware more reliable as it takes
>> AGP out of the equation.
>>
> From memory there is quite a loss in speed though, like pretty severe.
> The radeon PCI GART has a single slot TLB, if memory serves.
> I think this is going to be a hard sell at this stage, I'm guessing
> users will crawl out of the woodwork, I'm sure with 2 hours after I'm
> able to access the office, I can boot the 865 AGP box with an rv350 in
> it on a modern distro.
> Maybe we can find some way to compartmentalise AGP further?
> Dave.
Significantly reduced caching on memory accesses definitely sounds
like something that would be noticeable and objectionable.
I would speculate that this would also vary a lot across chipsets,
depending on the capabilities of the PCI MMU vs the AGP MMU.
In the end, it may be best to leave things as is, or as Dave suggested
try to keep AGP in the picture.
Nothing is ever simple, is it?
Al
_______________________________________________
amd-gfx mailing list
amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx
^ permalink raw reply [flat|nested] 81+ messages in thread
* Re: [RFC] Remove AGP support from Radeon/Nouveau/TTM
2020-05-11 20:43 ` Dave Airlie
(?)
@ 2020-05-11 20:59 ` Emil Velikov
-1 siblings, 0 replies; 81+ messages in thread
From: Emil Velikov @ 2020-05-11 20:59 UTC (permalink / raw)
To: Dave Airlie
Cc: Alex Deucher, Christian König, amd-gfx list,
Maling list - DRI developers, nouveau
On Mon, 11 May 2020 at 21:43, Dave Airlie <airlied@gmail.com> wrote:
>
> On Tue, 12 May 2020 at 06:28, Alex Deucher <alexdeucher@gmail.com> wrote:
> >
> > On Mon, May 11, 2020 at 4:22 PM Al Dunsmuir <al.dunsmuir@sympatico.ca> wrote:
> > >
> > > On Monday, May 11, 2020, 1:17:19 PM, "Christian König" wrote:
> > > > Hi guys,
> > >
> > > > Well let's face it AGP is a total headache to maintain and dead for at least 10+ years.
> > >
> > > > We have a lot of x86 specific stuff in the architecture independent
> > > > graphics memory management to get the caching right, abusing the DMA
> > > > API on multiple occasions, need to distinct between AGP and driver specific page tables etc etc...
> > >
> > > > So the idea here is to just go ahead and remove the support from
> > > > Radeon and Nouveau and then drop the necessary code from TTM.
> > >
> > > > For Radeon this means that we just switch over to the driver
> > > > specific page tables and everything should more or less continue to work.
> > >
> > > > For Nouveau I'm not 100% sure, but from the code it of hand looks
> > > > like we can do it similar to Radeon.
> > >
> > > > Please comment what you think about this.
> > >
> > > > Regards,
> > > > Christian.
> > >
> > > Christian,
> > >
> > > I would respectfully ask that this change be rejected.
> > >
> > > I'm currently an end user on both Intel (32-bit and 64-bit) and PPC
> > > (Macs, IBM Power - BE and LE).
> > >
> > > Linux is not just used for modern hardware. There is also a subset of
> > > the user base that uses it for what is often termed retro-computing.
> > > No it's not commercial usage, but no one can seriously claim that that
> > > Linux is for business only.
> > >
> > > Often the old hardware is built far batter than the modern junk, and
> > > will continue to run for years to come. This group of folks either has
> > > existing hardware they wish to continue to use, or are acquiring the
> > > same because they are tired of generic locked-down hardware.
> > >
> > > A significant percentage of the video hardware that falls in the retro
> > > category uses the AGP video bus. Removing that support for those cases
> > > where it works would severely limit performance and in some cases
> > > functionality. This can mean the difference between being able to run
> > > an application, or having it fail.
> > >
> >
> > Note there is no loss of functionality here, at least on radeon
> > hardware. It just comes down to which MMU gets used for access to
> > system memory, the AGP MMU on the chipset or the MMU built into the
> > GPU. On powerpc hardware, AGP has been particularly unstable, and AGP
> > has been disabled by default on radeon on powerpc for years now. In
> > fact, this will probably make older hardware more reliable as it takes
> > AGP out of the equation.
> >
>
> From memory there is quite a loss in speed though, like pretty severe.
>
> The radeon PCI GART has a single slot TLB, if memory serves.
>
> I think this is going to be a hard sell at this stage, I'm guessing
> users will crawl out of the woodwork, I'm sure with 2 hours after I'm
> able to access the office, I can boot the 865 AGP box with an rv350 in
> it on a modern distro.
>
I have a system with nforce2 motherboard and Nvidia fx5500 GPU. I
could dust it off and some quick performance tests over the weekend.
Unless someone beats me to it, of course :-)
-Emil
_______________________________________________
amd-gfx mailing list
amd-gfx@lists.freedesktop.org
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^ permalink raw reply [flat|nested] 81+ messages in thread
* Re: [RFC] Remove AGP support from Radeon/Nouveau/TTM
@ 2020-05-11 20:59 ` Emil Velikov
0 siblings, 0 replies; 81+ messages in thread
From: Emil Velikov @ 2020-05-11 20:59 UTC (permalink / raw)
To: Dave Airlie
Cc: Christian König, amd-gfx list, Maling list - DRI developers,
nouveau
On Mon, 11 May 2020 at 21:43, Dave Airlie <airlied@gmail.com> wrote:
>
> On Tue, 12 May 2020 at 06:28, Alex Deucher <alexdeucher@gmail.com> wrote:
> >
> > On Mon, May 11, 2020 at 4:22 PM Al Dunsmuir <al.dunsmuir@sympatico.ca> wrote:
> > >
> > > On Monday, May 11, 2020, 1:17:19 PM, "Christian König" wrote:
> > > > Hi guys,
> > >
> > > > Well let's face it AGP is a total headache to maintain and dead for at least 10+ years.
> > >
> > > > We have a lot of x86 specific stuff in the architecture independent
> > > > graphics memory management to get the caching right, abusing the DMA
> > > > API on multiple occasions, need to distinct between AGP and driver specific page tables etc etc...
> > >
> > > > So the idea here is to just go ahead and remove the support from
> > > > Radeon and Nouveau and then drop the necessary code from TTM.
> > >
> > > > For Radeon this means that we just switch over to the driver
> > > > specific page tables and everything should more or less continue to work.
> > >
> > > > For Nouveau I'm not 100% sure, but from the code it of hand looks
> > > > like we can do it similar to Radeon.
> > >
> > > > Please comment what you think about this.
> > >
> > > > Regards,
> > > > Christian.
> > >
> > > Christian,
> > >
> > > I would respectfully ask that this change be rejected.
> > >
> > > I'm currently an end user on both Intel (32-bit and 64-bit) and PPC
> > > (Macs, IBM Power - BE and LE).
> > >
> > > Linux is not just used for modern hardware. There is also a subset of
> > > the user base that uses it for what is often termed retro-computing.
> > > No it's not commercial usage, but no one can seriously claim that that
> > > Linux is for business only.
> > >
> > > Often the old hardware is built far batter than the modern junk, and
> > > will continue to run for years to come. This group of folks either has
> > > existing hardware they wish to continue to use, or are acquiring the
> > > same because they are tired of generic locked-down hardware.
> > >
> > > A significant percentage of the video hardware that falls in the retro
> > > category uses the AGP video bus. Removing that support for those cases
> > > where it works would severely limit performance and in some cases
> > > functionality. This can mean the difference between being able to run
> > > an application, or having it fail.
> > >
> >
> > Note there is no loss of functionality here, at least on radeon
> > hardware. It just comes down to which MMU gets used for access to
> > system memory, the AGP MMU on the chipset or the MMU built into the
> > GPU. On powerpc hardware, AGP has been particularly unstable, and AGP
> > has been disabled by default on radeon on powerpc for years now. In
> > fact, this will probably make older hardware more reliable as it takes
> > AGP out of the equation.
> >
>
> From memory there is quite a loss in speed though, like pretty severe.
>
> The radeon PCI GART has a single slot TLB, if memory serves.
>
> I think this is going to be a hard sell at this stage, I'm guessing
> users will crawl out of the woodwork, I'm sure with 2 hours after I'm
> able to access the office, I can boot the 865 AGP box with an rv350 in
> it on a modern distro.
>
I have a system with nforce2 motherboard and Nvidia fx5500 GPU. I
could dust it off and some quick performance tests over the weekend.
Unless someone beats me to it, of course :-)
-Emil
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 81+ messages in thread
* Re: [RFC] Remove AGP support from Radeon/Nouveau/TTM
@ 2020-05-11 20:59 ` Emil Velikov
0 siblings, 0 replies; 81+ messages in thread
From: Emil Velikov @ 2020-05-11 20:59 UTC (permalink / raw)
To: Dave Airlie
Cc: Alex Deucher, Christian König, amd-gfx list,
Maling list - DRI developers, nouveau
On Mon, 11 May 2020 at 21:43, Dave Airlie <airlied@gmail.com> wrote:
>
> On Tue, 12 May 2020 at 06:28, Alex Deucher <alexdeucher@gmail.com> wrote:
> >
> > On Mon, May 11, 2020 at 4:22 PM Al Dunsmuir <al.dunsmuir@sympatico.ca> wrote:
> > >
> > > On Monday, May 11, 2020, 1:17:19 PM, "Christian König" wrote:
> > > > Hi guys,
> > >
> > > > Well let's face it AGP is a total headache to maintain and dead for at least 10+ years.
> > >
> > > > We have a lot of x86 specific stuff in the architecture independent
> > > > graphics memory management to get the caching right, abusing the DMA
> > > > API on multiple occasions, need to distinct between AGP and driver specific page tables etc etc...
> > >
> > > > So the idea here is to just go ahead and remove the support from
> > > > Radeon and Nouveau and then drop the necessary code from TTM.
> > >
> > > > For Radeon this means that we just switch over to the driver
> > > > specific page tables and everything should more or less continue to work.
> > >
> > > > For Nouveau I'm not 100% sure, but from the code it of hand looks
> > > > like we can do it similar to Radeon.
> > >
> > > > Please comment what you think about this.
> > >
> > > > Regards,
> > > > Christian.
> > >
> > > Christian,
> > >
> > > I would respectfully ask that this change be rejected.
> > >
> > > I'm currently an end user on both Intel (32-bit and 64-bit) and PPC
> > > (Macs, IBM Power - BE and LE).
> > >
> > > Linux is not just used for modern hardware. There is also a subset of
> > > the user base that uses it for what is often termed retro-computing.
> > > No it's not commercial usage, but no one can seriously claim that that
> > > Linux is for business only.
> > >
> > > Often the old hardware is built far batter than the modern junk, and
> > > will continue to run for years to come. This group of folks either has
> > > existing hardware they wish to continue to use, or are acquiring the
> > > same because they are tired of generic locked-down hardware.
> > >
> > > A significant percentage of the video hardware that falls in the retro
> > > category uses the AGP video bus. Removing that support for those cases
> > > where it works would severely limit performance and in some cases
> > > functionality. This can mean the difference between being able to run
> > > an application, or having it fail.
> > >
> >
> > Note there is no loss of functionality here, at least on radeon
> > hardware. It just comes down to which MMU gets used for access to
> > system memory, the AGP MMU on the chipset or the MMU built into the
> > GPU. On powerpc hardware, AGP has been particularly unstable, and AGP
> > has been disabled by default on radeon on powerpc for years now. In
> > fact, this will probably make older hardware more reliable as it takes
> > AGP out of the equation.
> >
>
> From memory there is quite a loss in speed though, like pretty severe.
>
> The radeon PCI GART has a single slot TLB, if memory serves.
>
> I think this is going to be a hard sell at this stage, I'm guessing
> users will crawl out of the woodwork, I'm sure with 2 hours after I'm
> able to access the office, I can boot the 865 AGP box with an rv350 in
> it on a modern distro.
>
I have a system with nforce2 motherboard and Nvidia fx5500 GPU. I
could dust it off and some quick performance tests over the weekend.
Unless someone beats me to it, of course :-)
-Emil
_______________________________________________
amd-gfx mailing list
amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx
^ permalink raw reply [flat|nested] 81+ messages in thread
* Re: [RFC] Remove AGP support from Radeon/Nouveau/TTM
2020-05-11 20:56 ` Al Dunsmuir
(?)
@ 2020-05-12 8:11 ` Christian König
-1 siblings, 0 replies; 81+ messages in thread
From: Christian König @ 2020-05-12 8:11 UTC (permalink / raw)
To: Al Dunsmuir, Dave Airlie, Alex Deucher
Cc: nouveau, Maling list - DRI developers, amd-gfx list
Am 11.05.20 um 22:56 schrieb Al Dunsmuir:
> Hello Dave,
>
> On Monday, May 11, 2020, 4:43:01 PM, Dave Airlie wrote:
>> On Tue, 12 May 2020 at 06:28, Alex Deucher <alexdeucher-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>>> [SNIP]
>> Maybe we can find some way to compartmentalise AGP further?
>> Dave.
> Significantly reduced caching on memory accesses definitely sounds
> like something that would be noticeable and objectionable.
>
> I would speculate that this would also vary a lot across chipsets,
> depending on the capabilities of the PCI MMU vs the AGP MMU.
>
> In the end, it may be best to leave things as is, or as Dave suggested
> try to keep AGP in the picture.
The problem is that AGP was never really supported/implemented that well
in the first place.
The fact that the core linux kernel and the DMA API doesn't support
uncached memory and we had to change the caching attributes of pages
under the hood has resulted in a huge number of problems over the years.
Keeping it as it is is also not a really doable option because TTM
already has major problems keeping up with the requirements for modern
hardware, see my presentation here as well:
https://fosdem.org/2020/schedule/event/ttm/
Redesigning the old AGP support into something which isn't so ugly and
doesn't blocks the new requirements has the huge risk of breaking things
even harder, e.g. black screen instead of just reduced performance.
So removing/disabling AGP by default still sounds like the best option
to me for end users.
> Nothing is ever simple, is it?
At least not with AGP, no :) It has been a total beast to support and
keep working.
Do I get this right that I can ping you to test things?
Thanks for the feedback,
Christian.
> Al
>
>
^ permalink raw reply [flat|nested] 81+ messages in thread
* Re: [RFC] Remove AGP support from Radeon/Nouveau/TTM
@ 2020-05-12 8:11 ` Christian König
0 siblings, 0 replies; 81+ messages in thread
From: Christian König @ 2020-05-12 8:11 UTC (permalink / raw)
To: Al Dunsmuir, Dave Airlie, Alex Deucher
Cc: nouveau, Maling list - DRI developers, amd-gfx list
Am 11.05.20 um 22:56 schrieb Al Dunsmuir:
> Hello Dave,
>
> On Monday, May 11, 2020, 4:43:01 PM, Dave Airlie wrote:
>> On Tue, 12 May 2020 at 06:28, Alex Deucher <alexdeucher@gmail.com> wrote:
>>> [SNIP]
>> Maybe we can find some way to compartmentalise AGP further?
>> Dave.
> Significantly reduced caching on memory accesses definitely sounds
> like something that would be noticeable and objectionable.
>
> I would speculate that this would also vary a lot across chipsets,
> depending on the capabilities of the PCI MMU vs the AGP MMU.
>
> In the end, it may be best to leave things as is, or as Dave suggested
> try to keep AGP in the picture.
The problem is that AGP was never really supported/implemented that well
in the first place.
The fact that the core linux kernel and the DMA API doesn't support
uncached memory and we had to change the caching attributes of pages
under the hood has resulted in a huge number of problems over the years.
Keeping it as it is is also not a really doable option because TTM
already has major problems keeping up with the requirements for modern
hardware, see my presentation here as well:
https://fosdem.org/2020/schedule/event/ttm/
Redesigning the old AGP support into something which isn't so ugly and
doesn't blocks the new requirements has the huge risk of breaking things
even harder, e.g. black screen instead of just reduced performance.
So removing/disabling AGP by default still sounds like the best option
to me for end users.
> Nothing is ever simple, is it?
At least not with AGP, no :) It has been a total beast to support and
keep working.
Do I get this right that I can ping you to test things?
Thanks for the feedback,
Christian.
> Al
>
>
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 81+ messages in thread
* Re: [RFC] Remove AGP support from Radeon/Nouveau/TTM
@ 2020-05-12 8:11 ` Christian König
0 siblings, 0 replies; 81+ messages in thread
From: Christian König @ 2020-05-12 8:11 UTC (permalink / raw)
To: Al Dunsmuir, Dave Airlie, Alex Deucher
Cc: nouveau, Maling list - DRI developers, amd-gfx list
Am 11.05.20 um 22:56 schrieb Al Dunsmuir:
> Hello Dave,
>
> On Monday, May 11, 2020, 4:43:01 PM, Dave Airlie wrote:
>> On Tue, 12 May 2020 at 06:28, Alex Deucher <alexdeucher@gmail.com> wrote:
>>> [SNIP]
>> Maybe we can find some way to compartmentalise AGP further?
>> Dave.
> Significantly reduced caching on memory accesses definitely sounds
> like something that would be noticeable and objectionable.
>
> I would speculate that this would also vary a lot across chipsets,
> depending on the capabilities of the PCI MMU vs the AGP MMU.
>
> In the end, it may be best to leave things as is, or as Dave suggested
> try to keep AGP in the picture.
The problem is that AGP was never really supported/implemented that well
in the first place.
The fact that the core linux kernel and the DMA API doesn't support
uncached memory and we had to change the caching attributes of pages
under the hood has resulted in a huge number of problems over the years.
Keeping it as it is is also not a really doable option because TTM
already has major problems keeping up with the requirements for modern
hardware, see my presentation here as well:
https://fosdem.org/2020/schedule/event/ttm/
Redesigning the old AGP support into something which isn't so ugly and
doesn't blocks the new requirements has the huge risk of breaking things
even harder, e.g. black screen instead of just reduced performance.
So removing/disabling AGP by default still sounds like the best option
to me for end users.
> Nothing is ever simple, is it?
At least not with AGP, no :) It has been a total beast to support and
keep working.
Do I get this right that I can ping you to test things?
Thanks for the feedback,
Christian.
> Al
>
>
_______________________________________________
amd-gfx mailing list
amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx
^ permalink raw reply [flat|nested] 81+ messages in thread
* Re: [PATCH 1/3] drm/radeon: remove AGP support
2020-05-11 20:12 ` Alex Deucher
(?)
@ 2020-05-12 8:16 ` Michel Dänzer
-1 siblings, 0 replies; 81+ messages in thread
From: Michel Dänzer @ 2020-05-12 8:16 UTC (permalink / raw)
To: Alex Deucher, Christian König
Cc: nouveau, Maling list - DRI developers, amd-gfx list
On 2020-05-11 10:12 p.m., Alex Deucher wrote:
> On Mon, May 11, 2020 at 1:17 PM Christian König
> <ckoenig.leichtzumerken@gmail.com> wrote:
>>
>> AGP is deprecated for 10+ years now and not used any more on modern hardware.
>>
>> Old hardware should continue to work in PCI mode.
>
> Might want to clarify that there is no loss of functionality here.
> Something like:
>
> "There is no loss of functionality here. GPUs will continue to
> function. This just drops the use of the AGP MMU in the chipset in
> favor of the MMU on the device which has proven to be much more
> reliable. Due to its unreliability, AGP support has been disabled on
> PowerPC for years already so there is no change on PowerPC."
There's a difference between something being disabled by default or not
being available at all. We may decide it's worth it anyway, but let's do
it based on facts.
--
Earthling Michel Dänzer | https://redhat.com
Libre software enthusiast | Mesa and X developer
_______________________________________________
Nouveau mailing list
Nouveau@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/nouveau
^ permalink raw reply [flat|nested] 81+ messages in thread
* Re: [PATCH 1/3] drm/radeon: remove AGP support
@ 2020-05-12 8:16 ` Michel Dänzer
0 siblings, 0 replies; 81+ messages in thread
From: Michel Dänzer @ 2020-05-12 8:16 UTC (permalink / raw)
To: Alex Deucher, Christian König
Cc: nouveau, Maling list - DRI developers, amd-gfx list
On 2020-05-11 10:12 p.m., Alex Deucher wrote:
> On Mon, May 11, 2020 at 1:17 PM Christian König
> <ckoenig.leichtzumerken@gmail.com> wrote:
>>
>> AGP is deprecated for 10+ years now and not used any more on modern hardware.
>>
>> Old hardware should continue to work in PCI mode.
>
> Might want to clarify that there is no loss of functionality here.
> Something like:
>
> "There is no loss of functionality here. GPUs will continue to
> function. This just drops the use of the AGP MMU in the chipset in
> favor of the MMU on the device which has proven to be much more
> reliable. Due to its unreliability, AGP support has been disabled on
> PowerPC for years already so there is no change on PowerPC."
There's a difference between something being disabled by default or not
being available at all. We may decide it's worth it anyway, but let's do
it based on facts.
--
Earthling Michel Dänzer | https://redhat.com
Libre software enthusiast | Mesa and X developer
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 81+ messages in thread
* Re: [PATCH 1/3] drm/radeon: remove AGP support
@ 2020-05-12 8:16 ` Michel Dänzer
0 siblings, 0 replies; 81+ messages in thread
From: Michel Dänzer @ 2020-05-12 8:16 UTC (permalink / raw)
To: Alex Deucher, Christian König
Cc: nouveau, Maling list - DRI developers, amd-gfx list
On 2020-05-11 10:12 p.m., Alex Deucher wrote:
> On Mon, May 11, 2020 at 1:17 PM Christian König
> <ckoenig.leichtzumerken@gmail.com> wrote:
>>
>> AGP is deprecated for 10+ years now and not used any more on modern hardware.
>>
>> Old hardware should continue to work in PCI mode.
>
> Might want to clarify that there is no loss of functionality here.
> Something like:
>
> "There is no loss of functionality here. GPUs will continue to
> function. This just drops the use of the AGP MMU in the chipset in
> favor of the MMU on the device which has proven to be much more
> reliable. Due to its unreliability, AGP support has been disabled on
> PowerPC for years already so there is no change on PowerPC."
There's a difference between something being disabled by default or not
being available at all. We may decide it's worth it anyway, but let's do
it based on facts.
--
Earthling Michel Dänzer | https://redhat.com
Libre software enthusiast | Mesa and X developer
_______________________________________________
amd-gfx mailing list
amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx
^ permalink raw reply [flat|nested] 81+ messages in thread
* Re: [PATCH 1/3] drm/radeon: remove AGP support
2020-05-12 8:16 ` Michel Dänzer
(?)
@ 2020-05-12 13:36 ` Alex Deucher
-1 siblings, 0 replies; 81+ messages in thread
From: Alex Deucher @ 2020-05-12 13:36 UTC (permalink / raw)
To: Michel Dänzer
Cc: Christian König, Maling list - DRI developers, amd-gfx list,
nouveau
On Tue, May 12, 2020 at 4:16 AM Michel Dänzer <michel@daenzer.net> wrote:
>
> On 2020-05-11 10:12 p.m., Alex Deucher wrote:
> > On Mon, May 11, 2020 at 1:17 PM Christian König
> > <ckoenig.leichtzumerken@gmail.com> wrote:
> >>
> >> AGP is deprecated for 10+ years now and not used any more on modern hardware.
> >>
> >> Old hardware should continue to work in PCI mode.
> >
> > Might want to clarify that there is no loss of functionality here.
> > Something like:
> >
> > "There is no loss of functionality here. GPUs will continue to
> > function. This just drops the use of the AGP MMU in the chipset in
> > favor of the MMU on the device which has proven to be much more
> > reliable. Due to its unreliability, AGP support has been disabled on
> > PowerPC for years already so there is no change on PowerPC."
>
> There's a difference between something being disabled by default or not
> being available at all. We may decide it's worth it anyway, but let's do
> it based on facts.
>
I didn't mean to imply that AGP GART support was already removed. But
for the vast majority of users the end result is the same. If you
knew enough re-enable AGP GART, you probably wouldn't have been as
confused about what this patch set does either. To reiterate, this
patch set does not remove support for AGP cards, it only removes the
support for AGP GART. The cards will still be functional using the
device GART. There may be performance tradeoffs there in some cases.
Alex
_______________________________________________
amd-gfx mailing list
amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx
^ permalink raw reply [flat|nested] 81+ messages in thread
* Re: [PATCH 1/3] drm/radeon: remove AGP support
@ 2020-05-12 13:36 ` Alex Deucher
0 siblings, 0 replies; 81+ messages in thread
From: Alex Deucher @ 2020-05-12 13:36 UTC (permalink / raw)
To: Michel Dänzer
Cc: Christian König, Maling list - DRI developers, amd-gfx list,
nouveau
On Tue, May 12, 2020 at 4:16 AM Michel Dänzer <michel@daenzer.net> wrote:
>
> On 2020-05-11 10:12 p.m., Alex Deucher wrote:
> > On Mon, May 11, 2020 at 1:17 PM Christian König
> > <ckoenig.leichtzumerken@gmail.com> wrote:
> >>
> >> AGP is deprecated for 10+ years now and not used any more on modern hardware.
> >>
> >> Old hardware should continue to work in PCI mode.
> >
> > Might want to clarify that there is no loss of functionality here.
> > Something like:
> >
> > "There is no loss of functionality here. GPUs will continue to
> > function. This just drops the use of the AGP MMU in the chipset in
> > favor of the MMU on the device which has proven to be much more
> > reliable. Due to its unreliability, AGP support has been disabled on
> > PowerPC for years already so there is no change on PowerPC."
>
> There's a difference between something being disabled by default or not
> being available at all. We may decide it's worth it anyway, but let's do
> it based on facts.
>
I didn't mean to imply that AGP GART support was already removed. But
for the vast majority of users the end result is the same. If you
knew enough re-enable AGP GART, you probably wouldn't have been as
confused about what this patch set does either. To reiterate, this
patch set does not remove support for AGP cards, it only removes the
support for AGP GART. The cards will still be functional using the
device GART. There may be performance tradeoffs there in some cases.
Alex
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 81+ messages in thread
* Re: [PATCH 1/3] drm/radeon: remove AGP support
@ 2020-05-12 13:36 ` Alex Deucher
0 siblings, 0 replies; 81+ messages in thread
From: Alex Deucher @ 2020-05-12 13:36 UTC (permalink / raw)
To: Michel Dänzer
Cc: Christian König, Maling list - DRI developers, amd-gfx list,
nouveau
On Tue, May 12, 2020 at 4:16 AM Michel Dänzer <michel@daenzer.net> wrote:
>
> On 2020-05-11 10:12 p.m., Alex Deucher wrote:
> > On Mon, May 11, 2020 at 1:17 PM Christian König
> > <ckoenig.leichtzumerken@gmail.com> wrote:
> >>
> >> AGP is deprecated for 10+ years now and not used any more on modern hardware.
> >>
> >> Old hardware should continue to work in PCI mode.
> >
> > Might want to clarify that there is no loss of functionality here.
> > Something like:
> >
> > "There is no loss of functionality here. GPUs will continue to
> > function. This just drops the use of the AGP MMU in the chipset in
> > favor of the MMU on the device which has proven to be much more
> > reliable. Due to its unreliability, AGP support has been disabled on
> > PowerPC for years already so there is no change on PowerPC."
>
> There's a difference between something being disabled by default or not
> being available at all. We may decide it's worth it anyway, but let's do
> it based on facts.
>
I didn't mean to imply that AGP GART support was already removed. But
for the vast majority of users the end result is the same. If you
knew enough re-enable AGP GART, you probably wouldn't have been as
confused about what this patch set does either. To reiterate, this
patch set does not remove support for AGP cards, it only removes the
support for AGP GART. The cards will still be functional using the
device GART. There may be performance tradeoffs there in some cases.
Alex
_______________________________________________
amd-gfx mailing list
amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx
^ permalink raw reply [flat|nested] 81+ messages in thread
* Re: [PATCH 1/3] drm/radeon: remove AGP support
2020-05-11 17:17 ` Christian König
(?)
@ 2020-05-12 18:20 ` Thomas Zimmermann
-1 siblings, 0 replies; 81+ messages in thread
From: Thomas Zimmermann @ 2020-05-12 18:20 UTC (permalink / raw)
To: Christian König, dri-devel-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW,
amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW,
nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW
[-- Attachment #1.1.1: Type: text/plain, Size: 29105 bytes --]
Hi Christian
Am 11.05.20 um 19:17 schrieb Christian König:
> AGP is deprecated for 10+ years now and not used any more on modern hardware.
>
> Old hardware should continue to work in PCI mode.
>
> Signed-off-by: Christian König <christian.koenig-5C7GfCeVMHo@public.gmane.org>
> ---
> drivers/gpu/drm/radeon/Makefile | 4 +-
> drivers/gpu/drm/radeon/evergreen.c | 7 -
> drivers/gpu/drm/radeon/r100.c | 10 +-
> drivers/gpu/drm/radeon/r300.c | 9 -
> drivers/gpu/drm/radeon/r420.c | 9 -
> drivers/gpu/drm/radeon/r520.c | 8 -
> drivers/gpu/drm/radeon/r600.c | 6 -
> drivers/gpu/drm/radeon/radeon.h | 11 -
> drivers/gpu/drm/radeon/radeon_agp.c | 290 -------------------------
> drivers/gpu/drm/radeon/radeon_device.c | 23 +-
> drivers/gpu/drm/radeon/radeon_drv.c | 9 -
In radeon_drv.c, the field drm_device.agp is still being initialized in
radeon_pci_probe() and cleaned up in radeon_driver_unload_kms(). Is this
intentional?
Best regards
Thomas
> drivers/gpu/drm/radeon/radeon_ttm.c | 39 ----
> drivers/gpu/drm/radeon/rv515.c | 9 -
> drivers/gpu/drm/radeon/rv770.c | 7 -
> 14 files changed, 4 insertions(+), 437 deletions(-)
> delete mode 100644 drivers/gpu/drm/radeon/radeon_agp.c
>
> diff --git a/drivers/gpu/drm/radeon/Makefile b/drivers/gpu/drm/radeon/Makefile
> index c693b2ca0329..77429cfd303e 100644
> --- a/drivers/gpu/drm/radeon/Makefile
> +++ b/drivers/gpu/drm/radeon/Makefile
> @@ -61,8 +61,8 @@ radeon-y := radeon_drv.o
>
> # add KMS driver
> radeon-y += radeon_device.o radeon_asic.o radeon_kms.o \
> - radeon_atombios.o radeon_agp.o atombios_crtc.o radeon_combios.o \
> - atom.o radeon_fence.o radeon_ttm.o radeon_object.o radeon_gart.o \
> + radeon_atombios.o atombios_crtc.o radeon_combios.o atom.o \
> + radeon_fence.o radeon_ttm.o radeon_object.o radeon_gart.o \
> radeon_legacy_crtc.o radeon_legacy_encoders.o radeon_connectors.o \
> radeon_encoders.o radeon_display.o radeon_cursor.o radeon_i2c.o \
> radeon_clocks.o radeon_fb.o radeon_gem.o radeon_ring.o radeon_irq_kms.o \
> diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c
> index 14d90dc376e7..66b3d9a2c6dd 100644
> --- a/drivers/gpu/drm/radeon/evergreen.c
> +++ b/drivers/gpu/drm/radeon/evergreen.c
> @@ -5216,12 +5216,6 @@ int evergreen_init(struct radeon_device *rdev)
> r = radeon_fence_driver_init(rdev);
> if (r)
> return r;
> - /* initialize AGP */
> - if (rdev->flags & RADEON_IS_AGP) {
> - r = radeon_agp_init(rdev);
> - if (r)
> - radeon_agp_disable(rdev);
> - }
> /* initialize memory controller */
> r = evergreen_mc_init(rdev);
> if (r)
> @@ -5315,7 +5309,6 @@ void evergreen_fini(struct radeon_device *rdev)
> r600_vram_scratch_fini(rdev);
> radeon_gem_fini(rdev);
> radeon_fence_driver_fini(rdev);
> - radeon_agp_fini(rdev);
> radeon_bo_fini(rdev);
> radeon_atombios_fini(rdev);
> kfree(rdev->bios);
> diff --git a/drivers/gpu/drm/radeon/r100.c b/drivers/gpu/drm/radeon/r100.c
> index 24c8db673931..320b1b40a30a 100644
> --- a/drivers/gpu/drm/radeon/r100.c
> +++ b/drivers/gpu/drm/radeon/r100.c
> @@ -3382,7 +3382,7 @@ void r100_bandwidth_update(struct radeon_device *rdev)
>
> if (rdev->flags & RADEON_IS_AGP) {
> fixed20_12 agpmode_ff;
> - agpmode_ff.full = dfixed_const(radeon_agpmode);
> + agpmode_ff.full = dfixed_const(0);
> temp_ff.full = dfixed_const_666(16);
> sclk_eff_ff.full -= dfixed_mul(agpmode_ff, temp_ff);
> }
> @@ -3992,7 +3992,6 @@ void r100_fini(struct radeon_device *rdev)
> radeon_gem_fini(rdev);
> if (rdev->flags & RADEON_IS_PCI)
> r100_pci_gart_fini(rdev);
> - radeon_agp_fini(rdev);
> radeon_irq_kms_fini(rdev);
> radeon_fence_driver_fini(rdev);
> radeon_bo_fini(rdev);
> @@ -4068,13 +4067,6 @@ int r100_init(struct radeon_device *rdev)
> r100_errata(rdev);
> /* Initialize clocks */
> radeon_get_clock_info(rdev->ddev);
> - /* initialize AGP */
> - if (rdev->flags & RADEON_IS_AGP) {
> - r = radeon_agp_init(rdev);
> - if (r) {
> - radeon_agp_disable(rdev);
> - }
> - }
> /* initialize VRAM */
> r100_mc_init(rdev);
> /* Fence driver */
> diff --git a/drivers/gpu/drm/radeon/r300.c b/drivers/gpu/drm/radeon/r300.c
> index 3b7ead5be5bf..afd688629cf9 100644
> --- a/drivers/gpu/drm/radeon/r300.c
> +++ b/drivers/gpu/drm/radeon/r300.c
> @@ -1498,7 +1498,6 @@ void r300_fini(struct radeon_device *rdev)
> rv370_pcie_gart_fini(rdev);
> if (rdev->flags & RADEON_IS_PCI)
> r100_pci_gart_fini(rdev);
> - radeon_agp_fini(rdev);
> radeon_irq_kms_fini(rdev);
> radeon_fence_driver_fini(rdev);
> radeon_bo_fini(rdev);
> @@ -1547,13 +1546,6 @@ int r300_init(struct radeon_device *rdev)
> r300_errata(rdev);
> /* Initialize clocks */
> radeon_get_clock_info(rdev->ddev);
> - /* initialize AGP */
> - if (rdev->flags & RADEON_IS_AGP) {
> - r = radeon_agp_init(rdev);
> - if (r) {
> - radeon_agp_disable(rdev);
> - }
> - }
> /* initialize memory controller */
> r300_mc_init(rdev);
> /* Fence driver */
> @@ -1592,7 +1584,6 @@ int r300_init(struct radeon_device *rdev)
> rv370_pcie_gart_fini(rdev);
> if (rdev->flags & RADEON_IS_PCI)
> r100_pci_gart_fini(rdev);
> - radeon_agp_fini(rdev);
> rdev->accel_working = false;
> }
> return 0;
> diff --git a/drivers/gpu/drm/radeon/r420.c b/drivers/gpu/drm/radeon/r420.c
> index 1d4c04e0a449..3cb337dacd56 100644
> --- a/drivers/gpu/drm/radeon/r420.c
> +++ b/drivers/gpu/drm/radeon/r420.c
> @@ -366,7 +366,6 @@ void r420_fini(struct radeon_device *rdev)
> rv370_pcie_gart_fini(rdev);
> if (rdev->flags & RADEON_IS_PCI)
> r100_pci_gart_fini(rdev);
> - radeon_agp_fini(rdev);
> radeon_irq_kms_fini(rdev);
> radeon_fence_driver_fini(rdev);
> radeon_bo_fini(rdev);
> @@ -419,13 +418,6 @@ int r420_init(struct radeon_device *rdev)
>
> /* Initialize clocks */
> radeon_get_clock_info(rdev->ddev);
> - /* initialize AGP */
> - if (rdev->flags & RADEON_IS_AGP) {
> - r = radeon_agp_init(rdev);
> - if (r) {
> - radeon_agp_disable(rdev);
> - }
> - }
> /* initialize memory controller */
> r300_mc_init(rdev);
> r420_debugfs(rdev);
> @@ -470,7 +462,6 @@ int r420_init(struct radeon_device *rdev)
> rv370_pcie_gart_fini(rdev);
> if (rdev->flags & RADEON_IS_PCI)
> r100_pci_gart_fini(rdev);
> - radeon_agp_fini(rdev);
> rdev->accel_working = false;
> }
> return 0;
> diff --git a/drivers/gpu/drm/radeon/r520.c b/drivers/gpu/drm/radeon/r520.c
> index fc78e64ae727..76ac87d72406 100644
> --- a/drivers/gpu/drm/radeon/r520.c
> +++ b/drivers/gpu/drm/radeon/r520.c
> @@ -288,13 +288,6 @@ int r520_init(struct radeon_device *rdev)
> }
> /* Initialize clocks */
> radeon_get_clock_info(rdev->ddev);
> - /* initialize AGP */
> - if (rdev->flags & RADEON_IS_AGP) {
> - r = radeon_agp_init(rdev);
> - if (r) {
> - radeon_agp_disable(rdev);
> - }
> - }
> /* initialize memory controller */
> r520_mc_init(rdev);
> rv515_debugfs(rdev);
> @@ -324,7 +317,6 @@ int r520_init(struct radeon_device *rdev)
> radeon_ib_pool_fini(rdev);
> radeon_irq_kms_fini(rdev);
> rv370_pcie_gart_fini(rdev);
> - radeon_agp_fini(rdev);
> rdev->accel_working = false;
> }
> return 0;
> diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c
> index d9a33ca768f3..4a5ac15893c2 100644
> --- a/drivers/gpu/drm/radeon/r600.c
> +++ b/drivers/gpu/drm/radeon/r600.c
> @@ -3286,11 +3286,6 @@ int r600_init(struct radeon_device *rdev)
> r = radeon_fence_driver_init(rdev);
> if (r)
> return r;
> - if (rdev->flags & RADEON_IS_AGP) {
> - r = radeon_agp_init(rdev);
> - if (r)
> - radeon_agp_disable(rdev);
> - }
> r = r600_mc_init(rdev);
> if (r)
> return r;
> @@ -3353,7 +3348,6 @@ void r600_fini(struct radeon_device *rdev)
> radeon_irq_kms_fini(rdev);
> r600_pcie_gart_fini(rdev);
> r600_vram_scratch_fini(rdev);
> - radeon_agp_fini(rdev);
> radeon_gem_fini(rdev);
> radeon_fence_driver_fini(rdev);
> radeon_bo_fini(rdev);
> diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h
> index 30e32adc1fc6..377e1403b134 100644
> --- a/drivers/gpu/drm/radeon/radeon.h
> +++ b/drivers/gpu/drm/radeon/radeon.h
> @@ -91,7 +91,6 @@ extern int radeon_no_wb;
> extern int radeon_modeset;
> extern int radeon_dynclks;
> extern int radeon_r4xx_atom;
> -extern int radeon_agpmode;
> extern int radeon_vram_limit;
> extern int radeon_gart_size;
> extern int radeon_benchmarking;
> @@ -1116,16 +1115,6 @@ typedef int (*radeon_packet0_check_t)(struct radeon_cs_parser *p,
> typedef int (*radeon_packet3_check_t)(struct radeon_cs_parser *p,
> struct radeon_cs_packet *pkt);
>
> -
> -/*
> - * AGP
> - */
> -int radeon_agp_init(struct radeon_device *rdev);
> -void radeon_agp_resume(struct radeon_device *rdev);
> -void radeon_agp_suspend(struct radeon_device *rdev);
> -void radeon_agp_fini(struct radeon_device *rdev);
> -
> -
> /*
> * Writeback
> */
> diff --git a/drivers/gpu/drm/radeon/radeon_agp.c b/drivers/gpu/drm/radeon/radeon_agp.c
> deleted file mode 100644
> index 0aca7bdf54c7..000000000000
> --- a/drivers/gpu/drm/radeon/radeon_agp.c
> +++ /dev/null
> @@ -1,290 +0,0 @@
> -/*
> - * Copyright 2008 Red Hat Inc.
> - * Copyright 2009 Jerome Glisse.
> - *
> - * Permission is hereby granted, free of charge, to any person obtaining a
> - * copy of this software and associated documentation files (the "Software"),
> - * to deal in the Software without restriction, including without limitation
> - * the rights to use, copy, modify, merge, publish, distribute, sublicense,
> - * and/or sell copies of the Software, and to permit persons to whom the
> - * Software is furnished to do so, subject to the following conditions:
> - *
> - * The above copyright notice and this permission notice shall be included in
> - * all copies or substantial portions of the Software.
> - *
> - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
> - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
> - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
> - * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
> - * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
> - * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
> - * OTHER DEALINGS IN THE SOFTWARE.
> - *
> - * Authors:
> - * Dave Airlie
> - * Jerome Glisse <glisse-CC+yJ3UmIYqDUpFQwHEjaQ@public.gmane.org>
> - */
> -
> -#include <linux/pci.h>
> -
> -#include <drm/drm_agpsupport.h>
> -#include <drm/drm_device.h>
> -#include <drm/radeon_drm.h>
> -
> -#include "radeon.h"
> -
> -#if IS_ENABLED(CONFIG_AGP)
> -
> -struct radeon_agpmode_quirk {
> - u32 hostbridge_vendor;
> - u32 hostbridge_device;
> - u32 chip_vendor;
> - u32 chip_device;
> - u32 subsys_vendor;
> - u32 subsys_device;
> - u32 default_mode;
> -};
> -
> -static struct radeon_agpmode_quirk radeon_agpmode_quirk_list[] = {
> - /* Intel E7505 Memory Controller Hub / RV350 AR [Radeon 9600XT] Needs AGPMode 4 (deb #515326) */
> - { PCI_VENDOR_ID_INTEL, 0x2550, PCI_VENDOR_ID_ATI, 0x4152, 0x1458, 0x4038, 4},
> - /* Intel 82865G/PE/P DRAM Controller/Host-Hub / Mobility 9800 Needs AGPMode 4 (deb #462590) */
> - { PCI_VENDOR_ID_INTEL, 0x2570, PCI_VENDOR_ID_ATI, 0x4a4e, PCI_VENDOR_ID_DELL, 0x5106, 4},
> - /* Intel 82865G/PE/P DRAM Controller/Host-Hub / RV280 [Radeon 9200 SE] Needs AGPMode 4 (lp #300304) */
> - { PCI_VENDOR_ID_INTEL, 0x2570, PCI_VENDOR_ID_ATI, 0x5964,
> - 0x148c, 0x2073, 4},
> - /* Intel 82855PM Processor to I/O Controller / Mobility M6 LY Needs AGPMode 1 (deb #467235) */
> - { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4c59,
> - PCI_VENDOR_ID_IBM, 0x052f, 1},
> - /* Intel 82855PM host bridge / Mobility 9600 M10 RV350 Needs AGPMode 1 (lp #195051) */
> - { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4e50,
> - PCI_VENDOR_ID_IBM, 0x0550, 1},
> - /* Intel 82855PM host bridge / RV250/M9 GL [Mobility FireGL 9000/Radeon 9000] needs AGPMode 1 (Thinkpad T40p) */
> - { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4c66,
> - PCI_VENDOR_ID_IBM, 0x054d, 1},
> - /* Intel 82855PM host bridge / Mobility M7 needs AGPMode 1 */
> - { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4c57,
> - PCI_VENDOR_ID_IBM, 0x0530, 1},
> - /* Intel 82855PM host bridge / FireGL Mobility T2 RV350 Needs AGPMode 2 (fdo #20647) */
> - { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4e54,
> - PCI_VENDOR_ID_IBM, 0x054f, 2},
> - /* Intel 82855PM host bridge / Mobility M9+ / VaioPCG-V505DX Needs AGPMode 2 (fdo #17928) */
> - { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x5c61,
> - PCI_VENDOR_ID_SONY, 0x816b, 2},
> - /* Intel 82855PM Processor to I/O Controller / Mobility M9+ Needs AGPMode 8 (phoronix forum) */
> - { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x5c61,
> - PCI_VENDOR_ID_SONY, 0x8195, 8},
> - /* Intel 82830 830 Chipset Host Bridge / Mobility M6 LY Needs AGPMode 2 (fdo #17360)*/
> - { PCI_VENDOR_ID_INTEL, 0x3575, PCI_VENDOR_ID_ATI, 0x4c59,
> - PCI_VENDOR_ID_DELL, 0x00e3, 2},
> - /* Intel 82852/82855 host bridge / Mobility FireGL 9000 RV250 Needs AGPMode 1 (lp #296617) */
> - { PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4c66,
> - PCI_VENDOR_ID_DELL, 0x0149, 1},
> - /* Intel 82855PM host bridge / Mobility FireGL 9000 RV250 Needs AGPMode 1 for suspend/resume */
> - { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4c66,
> - PCI_VENDOR_ID_IBM, 0x0531, 1},
> - /* Intel 82852/82855 host bridge / Mobility 9600 M10 RV350 Needs AGPMode 1 (deb #467460) */
> - { PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4e50,
> - 0x1025, 0x0061, 1},
> - /* Intel 82852/82855 host bridge / Mobility 9600 M10 RV350 Needs AGPMode 1 (lp #203007) */
> - { PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4e50,
> - 0x1025, 0x0064, 1},
> - /* Intel 82852/82855 host bridge / Mobility 9600 M10 RV350 Needs AGPMode 1 (lp #141551) */
> - { PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4e50,
> - PCI_VENDOR_ID_ASUSTEK, 0x1942, 1},
> - /* Intel 82852/82855 host bridge / Mobility 9600/9700 Needs AGPMode 1 (deb #510208) */
> - { PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4e50,
> - 0x10cf, 0x127f, 1},
> - /* ASRock K7VT4A+ AGP 8x / ATI Radeon 9250 AGP Needs AGPMode 4 (lp #133192) */
> - { 0x1849, 0x3189, PCI_VENDOR_ID_ATI, 0x5960,
> - 0x1787, 0x5960, 4},
> - /* VIA K8M800 Host Bridge / RV280 [Radeon 9200 PRO] Needs AGPMode 4 (fdo #12544) */
> - { PCI_VENDOR_ID_VIA, 0x0204, PCI_VENDOR_ID_ATI, 0x5960,
> - 0x17af, 0x2020, 4},
> - /* VIA KT880 Host Bridge / RV350 [Radeon 9550] Needs AGPMode 4 (fdo #19981) */
> - { PCI_VENDOR_ID_VIA, 0x0269, PCI_VENDOR_ID_ATI, 0x4153,
> - PCI_VENDOR_ID_ASUSTEK, 0x003c, 4},
> - /* VIA VT8363 Host Bridge / R200 QL [Radeon 8500] Needs AGPMode 2 (lp #141551) */
> - { PCI_VENDOR_ID_VIA, 0x0305, PCI_VENDOR_ID_ATI, 0x514c,
> - PCI_VENDOR_ID_ATI, 0x013a, 2},
> - /* VIA VT82C693A Host Bridge / RV280 [Radeon 9200 PRO] Needs AGPMode 2 (deb #515512) */
> - { PCI_VENDOR_ID_VIA, 0x0691, PCI_VENDOR_ID_ATI, 0x5960,
> - PCI_VENDOR_ID_ASUSTEK, 0x004c, 2},
> - /* VIA VT82C693A Host Bridge / RV280 [Radeon 9200 PRO] Needs AGPMode 2 */
> - { PCI_VENDOR_ID_VIA, 0x0691, PCI_VENDOR_ID_ATI, 0x5960,
> - PCI_VENDOR_ID_ASUSTEK, 0x0054, 2},
> - /* VIA VT8377 Host Bridge / R200 QM [Radeon 9100] Needs AGPMode 4 (deb #461144) */
> - { PCI_VENDOR_ID_VIA, 0x3189, PCI_VENDOR_ID_ATI, 0x514d,
> - 0x174b, 0x7149, 4},
> - /* VIA VT8377 Host Bridge / RV280 [Radeon 9200 PRO] Needs AGPMode 4 (lp #312693) */
> - { PCI_VENDOR_ID_VIA, 0x3189, PCI_VENDOR_ID_ATI, 0x5960,
> - 0x1462, 0x0380, 4},
> - /* VIA VT8377 Host Bridge / RV280 Needs AGPMode 4 (ati ML) */
> - { PCI_VENDOR_ID_VIA, 0x3189, PCI_VENDOR_ID_ATI, 0x5964,
> - 0x148c, 0x2073, 4},
> - /* ATI Host Bridge / RV280 [M9+] Needs AGPMode 1 (phoronix forum) */
> - { PCI_VENDOR_ID_ATI, 0xcbb2, PCI_VENDOR_ID_ATI, 0x5c61,
> - PCI_VENDOR_ID_SONY, 0x8175, 1},
> - { 0, 0, 0, 0, 0, 0, 0 },
> -};
> -#endif
> -
> -int radeon_agp_init(struct radeon_device *rdev)
> -{
> -#if IS_ENABLED(CONFIG_AGP)
> - struct radeon_agpmode_quirk *p = radeon_agpmode_quirk_list;
> - struct drm_agp_mode mode;
> - struct drm_agp_info info;
> - uint32_t agp_status;
> - int default_mode;
> - bool is_v3;
> - int ret;
> -
> - /* Acquire AGP. */
> - ret = drm_agp_acquire(rdev->ddev);
> - if (ret) {
> - DRM_ERROR("Unable to acquire AGP: %d\n", ret);
> - return ret;
> - }
> -
> - ret = drm_agp_info(rdev->ddev, &info);
> - if (ret) {
> - drm_agp_release(rdev->ddev);
> - DRM_ERROR("Unable to get AGP info: %d\n", ret);
> - return ret;
> - }
> -
> - if (rdev->ddev->agp->agp_info.aper_size < 32) {
> - drm_agp_release(rdev->ddev);
> - dev_warn(rdev->dev, "AGP aperture too small (%zuM) "
> - "need at least 32M, disabling AGP\n",
> - rdev->ddev->agp->agp_info.aper_size);
> - return -EINVAL;
> - }
> -
> - mode.mode = info.mode;
> - /* chips with the agp to pcie bridge don't have the AGP_STATUS register
> - * Just use the whatever mode the host sets up.
> - */
> - if (rdev->family <= CHIP_RV350)
> - agp_status = (RREG32(RADEON_AGP_STATUS) | RADEON_AGPv3_MODE) & mode.mode;
> - else
> - agp_status = mode.mode;
> - is_v3 = !!(agp_status & RADEON_AGPv3_MODE);
> -
> - if (is_v3) {
> - default_mode = (agp_status & RADEON_AGPv3_8X_MODE) ? 8 : 4;
> - } else {
> - if (agp_status & RADEON_AGP_4X_MODE) {
> - default_mode = 4;
> - } else if (agp_status & RADEON_AGP_2X_MODE) {
> - default_mode = 2;
> - } else {
> - default_mode = 1;
> - }
> - }
> -
> - /* Apply AGPMode Quirks */
> - while (p && p->chip_device != 0) {
> - if (info.id_vendor == p->hostbridge_vendor &&
> - info.id_device == p->hostbridge_device &&
> - rdev->pdev->vendor == p->chip_vendor &&
> - rdev->pdev->device == p->chip_device &&
> - rdev->pdev->subsystem_vendor == p->subsys_vendor &&
> - rdev->pdev->subsystem_device == p->subsys_device) {
> - default_mode = p->default_mode;
> - }
> - ++p;
> - }
> -
> - if (radeon_agpmode > 0) {
> - if ((radeon_agpmode < (is_v3 ? 4 : 1)) ||
> - (radeon_agpmode > (is_v3 ? 8 : 4)) ||
> - (radeon_agpmode & (radeon_agpmode - 1))) {
> - DRM_ERROR("Illegal AGP Mode: %d (valid %s), leaving at %d\n",
> - radeon_agpmode, is_v3 ? "4, 8" : "1, 2, 4",
> - default_mode);
> - radeon_agpmode = default_mode;
> - } else {
> - DRM_INFO("AGP mode requested: %d\n", radeon_agpmode);
> - }
> - } else {
> - radeon_agpmode = default_mode;
> - }
> -
> - mode.mode &= ~RADEON_AGP_MODE_MASK;
> - if (is_v3) {
> - switch (radeon_agpmode) {
> - case 8:
> - mode.mode |= RADEON_AGPv3_8X_MODE;
> - break;
> - case 4:
> - default:
> - mode.mode |= RADEON_AGPv3_4X_MODE;
> - break;
> - }
> - } else {
> - switch (radeon_agpmode) {
> - case 4:
> - mode.mode |= RADEON_AGP_4X_MODE;
> - break;
> - case 2:
> - mode.mode |= RADEON_AGP_2X_MODE;
> - break;
> - case 1:
> - default:
> - mode.mode |= RADEON_AGP_1X_MODE;
> - break;
> - }
> - }
> -
> - mode.mode &= ~RADEON_AGP_FW_MODE; /* disable fw */
> - ret = drm_agp_enable(rdev->ddev, mode);
> - if (ret) {
> - DRM_ERROR("Unable to enable AGP (mode = 0x%lx)\n", mode.mode);
> - drm_agp_release(rdev->ddev);
> - return ret;
> - }
> -
> - rdev->mc.agp_base = rdev->ddev->agp->agp_info.aper_base;
The field agp_base seems to be used to program HW registers. Yet I
cannot find its initialization after applying the patchset. Does some of
this removed setup code need to be moved elsewhere instead?
Best regards
Thomas
> - rdev->mc.gtt_size = rdev->ddev->agp->agp_info.aper_size << 20;
> - rdev->mc.gtt_start = rdev->mc.agp_base;
> - rdev->mc.gtt_end = rdev->mc.gtt_start + rdev->mc.gtt_size - 1;
> - dev_info(rdev->dev, "GTT: %lluM 0x%08llX - 0x%08llX\n",
> - rdev->mc.gtt_size >> 20, rdev->mc.gtt_start, rdev->mc.gtt_end);
> -
> - /* workaround some hw issues */
> - if (rdev->family < CHIP_R200) {
> - WREG32(RADEON_AGP_CNTL, RREG32(RADEON_AGP_CNTL) | 0x000e0000);
> - }
> - return 0;
> -#else
> - return 0;
> -#endif
> -}
> -
> -void radeon_agp_resume(struct radeon_device *rdev)
> -{
> -#if IS_ENABLED(CONFIG_AGP)
> - int r;
> - if (rdev->flags & RADEON_IS_AGP) {
> - r = radeon_agp_init(rdev);
> - if (r)
> - dev_warn(rdev->dev, "radeon AGP reinit failed\n");
> - }
> -#endif
> -}
> -
> -void radeon_agp_fini(struct radeon_device *rdev)
> -{
> -#if IS_ENABLED(CONFIG_AGP)
> - if (rdev->ddev->agp && rdev->ddev->agp->acquired) {
> - drm_agp_release(rdev->ddev);
> - }
> -#endif
> -}
> -
> -void radeon_agp_suspend(struct radeon_device *rdev)
> -{
> - radeon_agp_fini(rdev);
> -}
> diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c
> index 266e3cbbd09b..12e5c5d81c47 100644
> --- a/drivers/gpu/drm/radeon/radeon_device.c
> +++ b/drivers/gpu/drm/radeon/radeon_device.c
> @@ -1145,22 +1145,6 @@ static void radeon_check_arguments(struct radeon_device *rdev)
> }
> rdev->mc.gtt_size = (uint64_t)radeon_gart_size << 20;
>
> - /* AGP mode can only be -1, 1, 2, 4, 8 */
> - switch (radeon_agpmode) {
> - case -1:
> - case 0:
> - case 1:
> - case 2:
> - case 4:
> - case 8:
> - break;
> - default:
> - dev_warn(rdev->dev, "invalid AGP mode %d (valid mode: "
> - "-1, 0, 1, 2, 4, 8)\n", radeon_agpmode);
> - radeon_agpmode = 0;
> - break;
> - }
> -
> if (!radeon_check_pot_argument(radeon_vm_size)) {
> dev_warn(rdev->dev, "VM size (%d) must be a power of 2\n",
> radeon_vm_size);
> @@ -1348,9 +1332,8 @@ int radeon_device_init(struct radeon_device *rdev,
> rdev->flags &= ~RADEON_IS_AGP;
> }
>
> - if (rdev->flags & RADEON_IS_AGP && radeon_agpmode == -1) {
> + if (rdev->flags & RADEON_IS_AGP)
> radeon_agp_disable(rdev);
> - }
>
> /* Set the internal MC address mask
> * This is the max address of the GPU's
> @@ -1636,8 +1619,6 @@ int radeon_suspend_kms(struct drm_device *dev, bool suspend,
> */
> radeon_bo_evict_vram(rdev);
>
> - radeon_agp_suspend(rdev);
> -
> pci_save_state(dev->pdev);
> if (freeze && rdev->family >= CHIP_CEDAR && !(rdev->flags & RADEON_IS_IGP)) {
> rdev->asic->asic_reset(rdev, true);
> @@ -1687,8 +1668,6 @@ int radeon_resume_kms(struct drm_device *dev, bool resume, bool fbcon)
> return -1;
> }
> }
> - /* resume AGP if in use */
> - radeon_agp_resume(rdev);
> radeon_resume(rdev);
>
> r = radeon_ib_ring_tests(rdev);
> diff --git a/drivers/gpu/drm/radeon/radeon_drv.c b/drivers/gpu/drm/radeon/radeon_drv.c
> index bbb0883e8ce6..62a5dfaf990b 100644
> --- a/drivers/gpu/drm/radeon/radeon_drv.c
> +++ b/drivers/gpu/drm/radeon/radeon_drv.c
> @@ -171,12 +171,6 @@ int radeon_no_wb;
> int radeon_modeset = -1;
> int radeon_dynclks = -1;
> int radeon_r4xx_atom = 0;
> -#ifdef __powerpc__
> -/* Default to PCI on PowerPC (fdo #95017) */
> -int radeon_agpmode = -1;
> -#else
> -int radeon_agpmode = 0;
> -#endif
> int radeon_vram_limit = 0;
> int radeon_gart_size = -1; /* auto */
> int radeon_benchmarking = 0;
> @@ -220,9 +214,6 @@ module_param_named(r4xx_atom, radeon_r4xx_atom, int, 0444);
> MODULE_PARM_DESC(vramlimit, "Restrict VRAM for testing, in megabytes");
> module_param_named(vramlimit, radeon_vram_limit, int, 0600);
>
> -MODULE_PARM_DESC(agpmode, "AGP Mode (-1 == PCI)");
> -module_param_named(agpmode, radeon_agpmode, int, 0444);
> -
> MODULE_PARM_DESC(gartsize, "Size of PCIE/IGP gart to setup in megabytes (32, 64, etc., -1 = auto)");
> module_param_named(gartsize, radeon_gart_size, int, 0600);
>
> diff --git a/drivers/gpu/drm/radeon/radeon_ttm.c b/drivers/gpu/drm/radeon/radeon_ttm.c
> index 5d50c9edbe80..21bb3706c13c 100644
> --- a/drivers/gpu/drm/radeon/radeon_ttm.c
> +++ b/drivers/gpu/drm/radeon/radeon_ttm.c
> @@ -86,20 +86,6 @@ static int radeon_init_mem_type(struct ttm_bo_device *bdev, uint32_t type,
> man->available_caching = TTM_PL_MASK_CACHING;
> man->default_caching = TTM_PL_FLAG_CACHED;
> man->flags = TTM_MEMTYPE_FLAG_MAPPABLE | TTM_MEMTYPE_FLAG_CMA;
> -#if IS_ENABLED(CONFIG_AGP)
> - if (rdev->flags & RADEON_IS_AGP) {
> - if (!rdev->ddev->agp) {
> - DRM_ERROR("AGP is not enabled for memory type %u\n",
> - (unsigned)type);
> - return -EINVAL;
> - }
> - if (!rdev->ddev->agp->cant_use_aperture)
> - man->flags = TTM_MEMTYPE_FLAG_MAPPABLE;
> - man->available_caching = TTM_PL_FLAG_UNCACHED |
> - TTM_PL_FLAG_WC;
> - man->default_caching = TTM_PL_FLAG_WC;
> - }
> -#endif
> break;
> case TTM_PL_VRAM:
> /* "On-card" video ram */
> @@ -411,14 +397,6 @@ static int radeon_ttm_io_mem_reserve(struct ttm_bo_device *bdev, struct ttm_mem_
> /* system memory */
> return 0;
> case TTM_PL_TT:
> -#if IS_ENABLED(CONFIG_AGP)
> - if (rdev->flags & RADEON_IS_AGP) {
> - /* RADEON_IS_AGP is set only if AGP is active */
> - mem->bus.offset = mem->start << PAGE_SHIFT;
> - mem->bus.base = rdev->mc.agp_base;
> - mem->bus.is_iomem = !rdev->ddev->agp->cant_use_aperture;
> - }
> -#endif
> break;
> case TTM_PL_VRAM:
> mem->bus.offset = mem->start << PAGE_SHIFT;
> @@ -631,12 +609,6 @@ static struct ttm_tt *radeon_ttm_tt_create(struct ttm_buffer_object *bo,
> struct radeon_ttm_tt *gtt;
>
> rdev = radeon_get_rdev(bo->bdev);
> -#if IS_ENABLED(CONFIG_AGP)
> - if (rdev->flags & RADEON_IS_AGP) {
> - return ttm_agp_tt_create(bo, rdev->ddev->agp->bridge,
> - page_flags);
> - }
> -#endif
>
> gtt = kzalloc(sizeof(struct radeon_ttm_tt), GFP_KERNEL);
> if (gtt == NULL) {
> @@ -683,11 +655,6 @@ static int radeon_ttm_tt_populate(struct ttm_tt *ttm,
> }
>
> rdev = radeon_get_rdev(ttm->bdev);
> -#if IS_ENABLED(CONFIG_AGP)
> - if (rdev->flags & RADEON_IS_AGP) {
> - return ttm_agp_tt_populate(ttm, ctx);
> - }
> -#endif
>
> #ifdef CONFIG_SWIOTLB
> if (rdev->need_swiotlb && swiotlb_nr_tbl()) {
> @@ -714,12 +681,6 @@ static void radeon_ttm_tt_unpopulate(struct ttm_tt *ttm)
> return;
>
> rdev = radeon_get_rdev(ttm->bdev);
> -#if IS_ENABLED(CONFIG_AGP)
> - if (rdev->flags & RADEON_IS_AGP) {
> - ttm_agp_tt_unpopulate(ttm);
> - return;
> - }
> -#endif
>
> #ifdef CONFIG_SWIOTLB
> if (rdev->need_swiotlb && swiotlb_nr_tbl()) {
> diff --git a/drivers/gpu/drm/radeon/rv515.c b/drivers/gpu/drm/radeon/rv515.c
> index 147e5cf8348d..8a2f16320869 100644
> --- a/drivers/gpu/drm/radeon/rv515.c
> +++ b/drivers/gpu/drm/radeon/rv515.c
> @@ -622,7 +622,6 @@ void rv515_fini(struct radeon_device *rdev)
> radeon_ib_pool_fini(rdev);
> radeon_gem_fini(rdev);
> rv370_pcie_gart_fini(rdev);
> - radeon_agp_fini(rdev);
> radeon_irq_kms_fini(rdev);
> radeon_fence_driver_fini(rdev);
> radeon_bo_fini(rdev);
> @@ -667,13 +666,6 @@ int rv515_init(struct radeon_device *rdev)
> return -EINVAL;
> /* Initialize clocks */
> radeon_get_clock_info(rdev->ddev);
> - /* initialize AGP */
> - if (rdev->flags & RADEON_IS_AGP) {
> - r = radeon_agp_init(rdev);
> - if (r) {
> - radeon_agp_disable(rdev);
> - }
> - }
> /* initialize memory controller */
> rv515_mc_init(rdev);
> rv515_debugfs(rdev);
> @@ -703,7 +695,6 @@ int rv515_init(struct radeon_device *rdev)
> radeon_ib_pool_fini(rdev);
> radeon_irq_kms_fini(rdev);
> rv370_pcie_gart_fini(rdev);
> - radeon_agp_fini(rdev);
> rdev->accel_working = false;
> }
> return 0;
> diff --git a/drivers/gpu/drm/radeon/rv770.c b/drivers/gpu/drm/radeon/rv770.c
> index 21f653ae1e1b..20bf54266f24 100644
> --- a/drivers/gpu/drm/radeon/rv770.c
> +++ b/drivers/gpu/drm/radeon/rv770.c
> @@ -1943,12 +1943,6 @@ int rv770_init(struct radeon_device *rdev)
> r = radeon_fence_driver_init(rdev);
> if (r)
> return r;
> - /* initialize AGP */
> - if (rdev->flags & RADEON_IS_AGP) {
> - r = radeon_agp_init(rdev);
> - if (r)
> - radeon_agp_disable(rdev);
> - }
> r = rv770_mc_init(rdev);
> if (r)
> return r;
> @@ -2015,7 +2009,6 @@ void rv770_fini(struct radeon_device *rdev)
> r600_vram_scratch_fini(rdev);
> radeon_gem_fini(rdev);
> radeon_fence_driver_fini(rdev);
> - radeon_agp_fini(rdev);
> radeon_bo_fini(rdev);
> radeon_atombios_fini(rdev);
> kfree(rdev->bios);
>
--
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Maxfeldstr. 5, 90409 Nürnberg, Germany
(HRB 36809, AG Nürnberg)
Geschäftsführer: Felix Imendörffer
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^ permalink raw reply [flat|nested] 81+ messages in thread
* Re: [PATCH 1/3] drm/radeon: remove AGP support
@ 2020-05-12 18:20 ` Thomas Zimmermann
0 siblings, 0 replies; 81+ messages in thread
From: Thomas Zimmermann @ 2020-05-12 18:20 UTC (permalink / raw)
To: Christian König, dri-devel, amd-gfx, nouveau
[-- Attachment #1.1.1: Type: text/plain, Size: 29060 bytes --]
Hi Christian
Am 11.05.20 um 19:17 schrieb Christian König:
> AGP is deprecated for 10+ years now and not used any more on modern hardware.
>
> Old hardware should continue to work in PCI mode.
>
> Signed-off-by: Christian König <christian.koenig@amd.com>
> ---
> drivers/gpu/drm/radeon/Makefile | 4 +-
> drivers/gpu/drm/radeon/evergreen.c | 7 -
> drivers/gpu/drm/radeon/r100.c | 10 +-
> drivers/gpu/drm/radeon/r300.c | 9 -
> drivers/gpu/drm/radeon/r420.c | 9 -
> drivers/gpu/drm/radeon/r520.c | 8 -
> drivers/gpu/drm/radeon/r600.c | 6 -
> drivers/gpu/drm/radeon/radeon.h | 11 -
> drivers/gpu/drm/radeon/radeon_agp.c | 290 -------------------------
> drivers/gpu/drm/radeon/radeon_device.c | 23 +-
> drivers/gpu/drm/radeon/radeon_drv.c | 9 -
In radeon_drv.c, the field drm_device.agp is still being initialized in
radeon_pci_probe() and cleaned up in radeon_driver_unload_kms(). Is this
intentional?
Best regards
Thomas
> drivers/gpu/drm/radeon/radeon_ttm.c | 39 ----
> drivers/gpu/drm/radeon/rv515.c | 9 -
> drivers/gpu/drm/radeon/rv770.c | 7 -
> 14 files changed, 4 insertions(+), 437 deletions(-)
> delete mode 100644 drivers/gpu/drm/radeon/radeon_agp.c
>
> diff --git a/drivers/gpu/drm/radeon/Makefile b/drivers/gpu/drm/radeon/Makefile
> index c693b2ca0329..77429cfd303e 100644
> --- a/drivers/gpu/drm/radeon/Makefile
> +++ b/drivers/gpu/drm/radeon/Makefile
> @@ -61,8 +61,8 @@ radeon-y := radeon_drv.o
>
> # add KMS driver
> radeon-y += radeon_device.o radeon_asic.o radeon_kms.o \
> - radeon_atombios.o radeon_agp.o atombios_crtc.o radeon_combios.o \
> - atom.o radeon_fence.o radeon_ttm.o radeon_object.o radeon_gart.o \
> + radeon_atombios.o atombios_crtc.o radeon_combios.o atom.o \
> + radeon_fence.o radeon_ttm.o radeon_object.o radeon_gart.o \
> radeon_legacy_crtc.o radeon_legacy_encoders.o radeon_connectors.o \
> radeon_encoders.o radeon_display.o radeon_cursor.o radeon_i2c.o \
> radeon_clocks.o radeon_fb.o radeon_gem.o radeon_ring.o radeon_irq_kms.o \
> diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c
> index 14d90dc376e7..66b3d9a2c6dd 100644
> --- a/drivers/gpu/drm/radeon/evergreen.c
> +++ b/drivers/gpu/drm/radeon/evergreen.c
> @@ -5216,12 +5216,6 @@ int evergreen_init(struct radeon_device *rdev)
> r = radeon_fence_driver_init(rdev);
> if (r)
> return r;
> - /* initialize AGP */
> - if (rdev->flags & RADEON_IS_AGP) {
> - r = radeon_agp_init(rdev);
> - if (r)
> - radeon_agp_disable(rdev);
> - }
> /* initialize memory controller */
> r = evergreen_mc_init(rdev);
> if (r)
> @@ -5315,7 +5309,6 @@ void evergreen_fini(struct radeon_device *rdev)
> r600_vram_scratch_fini(rdev);
> radeon_gem_fini(rdev);
> radeon_fence_driver_fini(rdev);
> - radeon_agp_fini(rdev);
> radeon_bo_fini(rdev);
> radeon_atombios_fini(rdev);
> kfree(rdev->bios);
> diff --git a/drivers/gpu/drm/radeon/r100.c b/drivers/gpu/drm/radeon/r100.c
> index 24c8db673931..320b1b40a30a 100644
> --- a/drivers/gpu/drm/radeon/r100.c
> +++ b/drivers/gpu/drm/radeon/r100.c
> @@ -3382,7 +3382,7 @@ void r100_bandwidth_update(struct radeon_device *rdev)
>
> if (rdev->flags & RADEON_IS_AGP) {
> fixed20_12 agpmode_ff;
> - agpmode_ff.full = dfixed_const(radeon_agpmode);
> + agpmode_ff.full = dfixed_const(0);
> temp_ff.full = dfixed_const_666(16);
> sclk_eff_ff.full -= dfixed_mul(agpmode_ff, temp_ff);
> }
> @@ -3992,7 +3992,6 @@ void r100_fini(struct radeon_device *rdev)
> radeon_gem_fini(rdev);
> if (rdev->flags & RADEON_IS_PCI)
> r100_pci_gart_fini(rdev);
> - radeon_agp_fini(rdev);
> radeon_irq_kms_fini(rdev);
> radeon_fence_driver_fini(rdev);
> radeon_bo_fini(rdev);
> @@ -4068,13 +4067,6 @@ int r100_init(struct radeon_device *rdev)
> r100_errata(rdev);
> /* Initialize clocks */
> radeon_get_clock_info(rdev->ddev);
> - /* initialize AGP */
> - if (rdev->flags & RADEON_IS_AGP) {
> - r = radeon_agp_init(rdev);
> - if (r) {
> - radeon_agp_disable(rdev);
> - }
> - }
> /* initialize VRAM */
> r100_mc_init(rdev);
> /* Fence driver */
> diff --git a/drivers/gpu/drm/radeon/r300.c b/drivers/gpu/drm/radeon/r300.c
> index 3b7ead5be5bf..afd688629cf9 100644
> --- a/drivers/gpu/drm/radeon/r300.c
> +++ b/drivers/gpu/drm/radeon/r300.c
> @@ -1498,7 +1498,6 @@ void r300_fini(struct radeon_device *rdev)
> rv370_pcie_gart_fini(rdev);
> if (rdev->flags & RADEON_IS_PCI)
> r100_pci_gart_fini(rdev);
> - radeon_agp_fini(rdev);
> radeon_irq_kms_fini(rdev);
> radeon_fence_driver_fini(rdev);
> radeon_bo_fini(rdev);
> @@ -1547,13 +1546,6 @@ int r300_init(struct radeon_device *rdev)
> r300_errata(rdev);
> /* Initialize clocks */
> radeon_get_clock_info(rdev->ddev);
> - /* initialize AGP */
> - if (rdev->flags & RADEON_IS_AGP) {
> - r = radeon_agp_init(rdev);
> - if (r) {
> - radeon_agp_disable(rdev);
> - }
> - }
> /* initialize memory controller */
> r300_mc_init(rdev);
> /* Fence driver */
> @@ -1592,7 +1584,6 @@ int r300_init(struct radeon_device *rdev)
> rv370_pcie_gart_fini(rdev);
> if (rdev->flags & RADEON_IS_PCI)
> r100_pci_gart_fini(rdev);
> - radeon_agp_fini(rdev);
> rdev->accel_working = false;
> }
> return 0;
> diff --git a/drivers/gpu/drm/radeon/r420.c b/drivers/gpu/drm/radeon/r420.c
> index 1d4c04e0a449..3cb337dacd56 100644
> --- a/drivers/gpu/drm/radeon/r420.c
> +++ b/drivers/gpu/drm/radeon/r420.c
> @@ -366,7 +366,6 @@ void r420_fini(struct radeon_device *rdev)
> rv370_pcie_gart_fini(rdev);
> if (rdev->flags & RADEON_IS_PCI)
> r100_pci_gart_fini(rdev);
> - radeon_agp_fini(rdev);
> radeon_irq_kms_fini(rdev);
> radeon_fence_driver_fini(rdev);
> radeon_bo_fini(rdev);
> @@ -419,13 +418,6 @@ int r420_init(struct radeon_device *rdev)
>
> /* Initialize clocks */
> radeon_get_clock_info(rdev->ddev);
> - /* initialize AGP */
> - if (rdev->flags & RADEON_IS_AGP) {
> - r = radeon_agp_init(rdev);
> - if (r) {
> - radeon_agp_disable(rdev);
> - }
> - }
> /* initialize memory controller */
> r300_mc_init(rdev);
> r420_debugfs(rdev);
> @@ -470,7 +462,6 @@ int r420_init(struct radeon_device *rdev)
> rv370_pcie_gart_fini(rdev);
> if (rdev->flags & RADEON_IS_PCI)
> r100_pci_gart_fini(rdev);
> - radeon_agp_fini(rdev);
> rdev->accel_working = false;
> }
> return 0;
> diff --git a/drivers/gpu/drm/radeon/r520.c b/drivers/gpu/drm/radeon/r520.c
> index fc78e64ae727..76ac87d72406 100644
> --- a/drivers/gpu/drm/radeon/r520.c
> +++ b/drivers/gpu/drm/radeon/r520.c
> @@ -288,13 +288,6 @@ int r520_init(struct radeon_device *rdev)
> }
> /* Initialize clocks */
> radeon_get_clock_info(rdev->ddev);
> - /* initialize AGP */
> - if (rdev->flags & RADEON_IS_AGP) {
> - r = radeon_agp_init(rdev);
> - if (r) {
> - radeon_agp_disable(rdev);
> - }
> - }
> /* initialize memory controller */
> r520_mc_init(rdev);
> rv515_debugfs(rdev);
> @@ -324,7 +317,6 @@ int r520_init(struct radeon_device *rdev)
> radeon_ib_pool_fini(rdev);
> radeon_irq_kms_fini(rdev);
> rv370_pcie_gart_fini(rdev);
> - radeon_agp_fini(rdev);
> rdev->accel_working = false;
> }
> return 0;
> diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c
> index d9a33ca768f3..4a5ac15893c2 100644
> --- a/drivers/gpu/drm/radeon/r600.c
> +++ b/drivers/gpu/drm/radeon/r600.c
> @@ -3286,11 +3286,6 @@ int r600_init(struct radeon_device *rdev)
> r = radeon_fence_driver_init(rdev);
> if (r)
> return r;
> - if (rdev->flags & RADEON_IS_AGP) {
> - r = radeon_agp_init(rdev);
> - if (r)
> - radeon_agp_disable(rdev);
> - }
> r = r600_mc_init(rdev);
> if (r)
> return r;
> @@ -3353,7 +3348,6 @@ void r600_fini(struct radeon_device *rdev)
> radeon_irq_kms_fini(rdev);
> r600_pcie_gart_fini(rdev);
> r600_vram_scratch_fini(rdev);
> - radeon_agp_fini(rdev);
> radeon_gem_fini(rdev);
> radeon_fence_driver_fini(rdev);
> radeon_bo_fini(rdev);
> diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h
> index 30e32adc1fc6..377e1403b134 100644
> --- a/drivers/gpu/drm/radeon/radeon.h
> +++ b/drivers/gpu/drm/radeon/radeon.h
> @@ -91,7 +91,6 @@ extern int radeon_no_wb;
> extern int radeon_modeset;
> extern int radeon_dynclks;
> extern int radeon_r4xx_atom;
> -extern int radeon_agpmode;
> extern int radeon_vram_limit;
> extern int radeon_gart_size;
> extern int radeon_benchmarking;
> @@ -1116,16 +1115,6 @@ typedef int (*radeon_packet0_check_t)(struct radeon_cs_parser *p,
> typedef int (*radeon_packet3_check_t)(struct radeon_cs_parser *p,
> struct radeon_cs_packet *pkt);
>
> -
> -/*
> - * AGP
> - */
> -int radeon_agp_init(struct radeon_device *rdev);
> -void radeon_agp_resume(struct radeon_device *rdev);
> -void radeon_agp_suspend(struct radeon_device *rdev);
> -void radeon_agp_fini(struct radeon_device *rdev);
> -
> -
> /*
> * Writeback
> */
> diff --git a/drivers/gpu/drm/radeon/radeon_agp.c b/drivers/gpu/drm/radeon/radeon_agp.c
> deleted file mode 100644
> index 0aca7bdf54c7..000000000000
> --- a/drivers/gpu/drm/radeon/radeon_agp.c
> +++ /dev/null
> @@ -1,290 +0,0 @@
> -/*
> - * Copyright 2008 Red Hat Inc.
> - * Copyright 2009 Jerome Glisse.
> - *
> - * Permission is hereby granted, free of charge, to any person obtaining a
> - * copy of this software and associated documentation files (the "Software"),
> - * to deal in the Software without restriction, including without limitation
> - * the rights to use, copy, modify, merge, publish, distribute, sublicense,
> - * and/or sell copies of the Software, and to permit persons to whom the
> - * Software is furnished to do so, subject to the following conditions:
> - *
> - * The above copyright notice and this permission notice shall be included in
> - * all copies or substantial portions of the Software.
> - *
> - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
> - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
> - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
> - * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
> - * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
> - * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
> - * OTHER DEALINGS IN THE SOFTWARE.
> - *
> - * Authors:
> - * Dave Airlie
> - * Jerome Glisse <glisse@freedesktop.org>
> - */
> -
> -#include <linux/pci.h>
> -
> -#include <drm/drm_agpsupport.h>
> -#include <drm/drm_device.h>
> -#include <drm/radeon_drm.h>
> -
> -#include "radeon.h"
> -
> -#if IS_ENABLED(CONFIG_AGP)
> -
> -struct radeon_agpmode_quirk {
> - u32 hostbridge_vendor;
> - u32 hostbridge_device;
> - u32 chip_vendor;
> - u32 chip_device;
> - u32 subsys_vendor;
> - u32 subsys_device;
> - u32 default_mode;
> -};
> -
> -static struct radeon_agpmode_quirk radeon_agpmode_quirk_list[] = {
> - /* Intel E7505 Memory Controller Hub / RV350 AR [Radeon 9600XT] Needs AGPMode 4 (deb #515326) */
> - { PCI_VENDOR_ID_INTEL, 0x2550, PCI_VENDOR_ID_ATI, 0x4152, 0x1458, 0x4038, 4},
> - /* Intel 82865G/PE/P DRAM Controller/Host-Hub / Mobility 9800 Needs AGPMode 4 (deb #462590) */
> - { PCI_VENDOR_ID_INTEL, 0x2570, PCI_VENDOR_ID_ATI, 0x4a4e, PCI_VENDOR_ID_DELL, 0x5106, 4},
> - /* Intel 82865G/PE/P DRAM Controller/Host-Hub / RV280 [Radeon 9200 SE] Needs AGPMode 4 (lp #300304) */
> - { PCI_VENDOR_ID_INTEL, 0x2570, PCI_VENDOR_ID_ATI, 0x5964,
> - 0x148c, 0x2073, 4},
> - /* Intel 82855PM Processor to I/O Controller / Mobility M6 LY Needs AGPMode 1 (deb #467235) */
> - { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4c59,
> - PCI_VENDOR_ID_IBM, 0x052f, 1},
> - /* Intel 82855PM host bridge / Mobility 9600 M10 RV350 Needs AGPMode 1 (lp #195051) */
> - { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4e50,
> - PCI_VENDOR_ID_IBM, 0x0550, 1},
> - /* Intel 82855PM host bridge / RV250/M9 GL [Mobility FireGL 9000/Radeon 9000] needs AGPMode 1 (Thinkpad T40p) */
> - { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4c66,
> - PCI_VENDOR_ID_IBM, 0x054d, 1},
> - /* Intel 82855PM host bridge / Mobility M7 needs AGPMode 1 */
> - { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4c57,
> - PCI_VENDOR_ID_IBM, 0x0530, 1},
> - /* Intel 82855PM host bridge / FireGL Mobility T2 RV350 Needs AGPMode 2 (fdo #20647) */
> - { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4e54,
> - PCI_VENDOR_ID_IBM, 0x054f, 2},
> - /* Intel 82855PM host bridge / Mobility M9+ / VaioPCG-V505DX Needs AGPMode 2 (fdo #17928) */
> - { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x5c61,
> - PCI_VENDOR_ID_SONY, 0x816b, 2},
> - /* Intel 82855PM Processor to I/O Controller / Mobility M9+ Needs AGPMode 8 (phoronix forum) */
> - { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x5c61,
> - PCI_VENDOR_ID_SONY, 0x8195, 8},
> - /* Intel 82830 830 Chipset Host Bridge / Mobility M6 LY Needs AGPMode 2 (fdo #17360)*/
> - { PCI_VENDOR_ID_INTEL, 0x3575, PCI_VENDOR_ID_ATI, 0x4c59,
> - PCI_VENDOR_ID_DELL, 0x00e3, 2},
> - /* Intel 82852/82855 host bridge / Mobility FireGL 9000 RV250 Needs AGPMode 1 (lp #296617) */
> - { PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4c66,
> - PCI_VENDOR_ID_DELL, 0x0149, 1},
> - /* Intel 82855PM host bridge / Mobility FireGL 9000 RV250 Needs AGPMode 1 for suspend/resume */
> - { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4c66,
> - PCI_VENDOR_ID_IBM, 0x0531, 1},
> - /* Intel 82852/82855 host bridge / Mobility 9600 M10 RV350 Needs AGPMode 1 (deb #467460) */
> - { PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4e50,
> - 0x1025, 0x0061, 1},
> - /* Intel 82852/82855 host bridge / Mobility 9600 M10 RV350 Needs AGPMode 1 (lp #203007) */
> - { PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4e50,
> - 0x1025, 0x0064, 1},
> - /* Intel 82852/82855 host bridge / Mobility 9600 M10 RV350 Needs AGPMode 1 (lp #141551) */
> - { PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4e50,
> - PCI_VENDOR_ID_ASUSTEK, 0x1942, 1},
> - /* Intel 82852/82855 host bridge / Mobility 9600/9700 Needs AGPMode 1 (deb #510208) */
> - { PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4e50,
> - 0x10cf, 0x127f, 1},
> - /* ASRock K7VT4A+ AGP 8x / ATI Radeon 9250 AGP Needs AGPMode 4 (lp #133192) */
> - { 0x1849, 0x3189, PCI_VENDOR_ID_ATI, 0x5960,
> - 0x1787, 0x5960, 4},
> - /* VIA K8M800 Host Bridge / RV280 [Radeon 9200 PRO] Needs AGPMode 4 (fdo #12544) */
> - { PCI_VENDOR_ID_VIA, 0x0204, PCI_VENDOR_ID_ATI, 0x5960,
> - 0x17af, 0x2020, 4},
> - /* VIA KT880 Host Bridge / RV350 [Radeon 9550] Needs AGPMode 4 (fdo #19981) */
> - { PCI_VENDOR_ID_VIA, 0x0269, PCI_VENDOR_ID_ATI, 0x4153,
> - PCI_VENDOR_ID_ASUSTEK, 0x003c, 4},
> - /* VIA VT8363 Host Bridge / R200 QL [Radeon 8500] Needs AGPMode 2 (lp #141551) */
> - { PCI_VENDOR_ID_VIA, 0x0305, PCI_VENDOR_ID_ATI, 0x514c,
> - PCI_VENDOR_ID_ATI, 0x013a, 2},
> - /* VIA VT82C693A Host Bridge / RV280 [Radeon 9200 PRO] Needs AGPMode 2 (deb #515512) */
> - { PCI_VENDOR_ID_VIA, 0x0691, PCI_VENDOR_ID_ATI, 0x5960,
> - PCI_VENDOR_ID_ASUSTEK, 0x004c, 2},
> - /* VIA VT82C693A Host Bridge / RV280 [Radeon 9200 PRO] Needs AGPMode 2 */
> - { PCI_VENDOR_ID_VIA, 0x0691, PCI_VENDOR_ID_ATI, 0x5960,
> - PCI_VENDOR_ID_ASUSTEK, 0x0054, 2},
> - /* VIA VT8377 Host Bridge / R200 QM [Radeon 9100] Needs AGPMode 4 (deb #461144) */
> - { PCI_VENDOR_ID_VIA, 0x3189, PCI_VENDOR_ID_ATI, 0x514d,
> - 0x174b, 0x7149, 4},
> - /* VIA VT8377 Host Bridge / RV280 [Radeon 9200 PRO] Needs AGPMode 4 (lp #312693) */
> - { PCI_VENDOR_ID_VIA, 0x3189, PCI_VENDOR_ID_ATI, 0x5960,
> - 0x1462, 0x0380, 4},
> - /* VIA VT8377 Host Bridge / RV280 Needs AGPMode 4 (ati ML) */
> - { PCI_VENDOR_ID_VIA, 0x3189, PCI_VENDOR_ID_ATI, 0x5964,
> - 0x148c, 0x2073, 4},
> - /* ATI Host Bridge / RV280 [M9+] Needs AGPMode 1 (phoronix forum) */
> - { PCI_VENDOR_ID_ATI, 0xcbb2, PCI_VENDOR_ID_ATI, 0x5c61,
> - PCI_VENDOR_ID_SONY, 0x8175, 1},
> - { 0, 0, 0, 0, 0, 0, 0 },
> -};
> -#endif
> -
> -int radeon_agp_init(struct radeon_device *rdev)
> -{
> -#if IS_ENABLED(CONFIG_AGP)
> - struct radeon_agpmode_quirk *p = radeon_agpmode_quirk_list;
> - struct drm_agp_mode mode;
> - struct drm_agp_info info;
> - uint32_t agp_status;
> - int default_mode;
> - bool is_v3;
> - int ret;
> -
> - /* Acquire AGP. */
> - ret = drm_agp_acquire(rdev->ddev);
> - if (ret) {
> - DRM_ERROR("Unable to acquire AGP: %d\n", ret);
> - return ret;
> - }
> -
> - ret = drm_agp_info(rdev->ddev, &info);
> - if (ret) {
> - drm_agp_release(rdev->ddev);
> - DRM_ERROR("Unable to get AGP info: %d\n", ret);
> - return ret;
> - }
> -
> - if (rdev->ddev->agp->agp_info.aper_size < 32) {
> - drm_agp_release(rdev->ddev);
> - dev_warn(rdev->dev, "AGP aperture too small (%zuM) "
> - "need at least 32M, disabling AGP\n",
> - rdev->ddev->agp->agp_info.aper_size);
> - return -EINVAL;
> - }
> -
> - mode.mode = info.mode;
> - /* chips with the agp to pcie bridge don't have the AGP_STATUS register
> - * Just use the whatever mode the host sets up.
> - */
> - if (rdev->family <= CHIP_RV350)
> - agp_status = (RREG32(RADEON_AGP_STATUS) | RADEON_AGPv3_MODE) & mode.mode;
> - else
> - agp_status = mode.mode;
> - is_v3 = !!(agp_status & RADEON_AGPv3_MODE);
> -
> - if (is_v3) {
> - default_mode = (agp_status & RADEON_AGPv3_8X_MODE) ? 8 : 4;
> - } else {
> - if (agp_status & RADEON_AGP_4X_MODE) {
> - default_mode = 4;
> - } else if (agp_status & RADEON_AGP_2X_MODE) {
> - default_mode = 2;
> - } else {
> - default_mode = 1;
> - }
> - }
> -
> - /* Apply AGPMode Quirks */
> - while (p && p->chip_device != 0) {
> - if (info.id_vendor == p->hostbridge_vendor &&
> - info.id_device == p->hostbridge_device &&
> - rdev->pdev->vendor == p->chip_vendor &&
> - rdev->pdev->device == p->chip_device &&
> - rdev->pdev->subsystem_vendor == p->subsys_vendor &&
> - rdev->pdev->subsystem_device == p->subsys_device) {
> - default_mode = p->default_mode;
> - }
> - ++p;
> - }
> -
> - if (radeon_agpmode > 0) {
> - if ((radeon_agpmode < (is_v3 ? 4 : 1)) ||
> - (radeon_agpmode > (is_v3 ? 8 : 4)) ||
> - (radeon_agpmode & (radeon_agpmode - 1))) {
> - DRM_ERROR("Illegal AGP Mode: %d (valid %s), leaving at %d\n",
> - radeon_agpmode, is_v3 ? "4, 8" : "1, 2, 4",
> - default_mode);
> - radeon_agpmode = default_mode;
> - } else {
> - DRM_INFO("AGP mode requested: %d\n", radeon_agpmode);
> - }
> - } else {
> - radeon_agpmode = default_mode;
> - }
> -
> - mode.mode &= ~RADEON_AGP_MODE_MASK;
> - if (is_v3) {
> - switch (radeon_agpmode) {
> - case 8:
> - mode.mode |= RADEON_AGPv3_8X_MODE;
> - break;
> - case 4:
> - default:
> - mode.mode |= RADEON_AGPv3_4X_MODE;
> - break;
> - }
> - } else {
> - switch (radeon_agpmode) {
> - case 4:
> - mode.mode |= RADEON_AGP_4X_MODE;
> - break;
> - case 2:
> - mode.mode |= RADEON_AGP_2X_MODE;
> - break;
> - case 1:
> - default:
> - mode.mode |= RADEON_AGP_1X_MODE;
> - break;
> - }
> - }
> -
> - mode.mode &= ~RADEON_AGP_FW_MODE; /* disable fw */
> - ret = drm_agp_enable(rdev->ddev, mode);
> - if (ret) {
> - DRM_ERROR("Unable to enable AGP (mode = 0x%lx)\n", mode.mode);
> - drm_agp_release(rdev->ddev);
> - return ret;
> - }
> -
> - rdev->mc.agp_base = rdev->ddev->agp->agp_info.aper_base;
The field agp_base seems to be used to program HW registers. Yet I
cannot find its initialization after applying the patchset. Does some of
this removed setup code need to be moved elsewhere instead?
Best regards
Thomas
> - rdev->mc.gtt_size = rdev->ddev->agp->agp_info.aper_size << 20;
> - rdev->mc.gtt_start = rdev->mc.agp_base;
> - rdev->mc.gtt_end = rdev->mc.gtt_start + rdev->mc.gtt_size - 1;
> - dev_info(rdev->dev, "GTT: %lluM 0x%08llX - 0x%08llX\n",
> - rdev->mc.gtt_size >> 20, rdev->mc.gtt_start, rdev->mc.gtt_end);
> -
> - /* workaround some hw issues */
> - if (rdev->family < CHIP_R200) {
> - WREG32(RADEON_AGP_CNTL, RREG32(RADEON_AGP_CNTL) | 0x000e0000);
> - }
> - return 0;
> -#else
> - return 0;
> -#endif
> -}
> -
> -void radeon_agp_resume(struct radeon_device *rdev)
> -{
> -#if IS_ENABLED(CONFIG_AGP)
> - int r;
> - if (rdev->flags & RADEON_IS_AGP) {
> - r = radeon_agp_init(rdev);
> - if (r)
> - dev_warn(rdev->dev, "radeon AGP reinit failed\n");
> - }
> -#endif
> -}
> -
> -void radeon_agp_fini(struct radeon_device *rdev)
> -{
> -#if IS_ENABLED(CONFIG_AGP)
> - if (rdev->ddev->agp && rdev->ddev->agp->acquired) {
> - drm_agp_release(rdev->ddev);
> - }
> -#endif
> -}
> -
> -void radeon_agp_suspend(struct radeon_device *rdev)
> -{
> - radeon_agp_fini(rdev);
> -}
> diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c
> index 266e3cbbd09b..12e5c5d81c47 100644
> --- a/drivers/gpu/drm/radeon/radeon_device.c
> +++ b/drivers/gpu/drm/radeon/radeon_device.c
> @@ -1145,22 +1145,6 @@ static void radeon_check_arguments(struct radeon_device *rdev)
> }
> rdev->mc.gtt_size = (uint64_t)radeon_gart_size << 20;
>
> - /* AGP mode can only be -1, 1, 2, 4, 8 */
> - switch (radeon_agpmode) {
> - case -1:
> - case 0:
> - case 1:
> - case 2:
> - case 4:
> - case 8:
> - break;
> - default:
> - dev_warn(rdev->dev, "invalid AGP mode %d (valid mode: "
> - "-1, 0, 1, 2, 4, 8)\n", radeon_agpmode);
> - radeon_agpmode = 0;
> - break;
> - }
> -
> if (!radeon_check_pot_argument(radeon_vm_size)) {
> dev_warn(rdev->dev, "VM size (%d) must be a power of 2\n",
> radeon_vm_size);
> @@ -1348,9 +1332,8 @@ int radeon_device_init(struct radeon_device *rdev,
> rdev->flags &= ~RADEON_IS_AGP;
> }
>
> - if (rdev->flags & RADEON_IS_AGP && radeon_agpmode == -1) {
> + if (rdev->flags & RADEON_IS_AGP)
> radeon_agp_disable(rdev);
> - }
>
> /* Set the internal MC address mask
> * This is the max address of the GPU's
> @@ -1636,8 +1619,6 @@ int radeon_suspend_kms(struct drm_device *dev, bool suspend,
> */
> radeon_bo_evict_vram(rdev);
>
> - radeon_agp_suspend(rdev);
> -
> pci_save_state(dev->pdev);
> if (freeze && rdev->family >= CHIP_CEDAR && !(rdev->flags & RADEON_IS_IGP)) {
> rdev->asic->asic_reset(rdev, true);
> @@ -1687,8 +1668,6 @@ int radeon_resume_kms(struct drm_device *dev, bool resume, bool fbcon)
> return -1;
> }
> }
> - /* resume AGP if in use */
> - radeon_agp_resume(rdev);
> radeon_resume(rdev);
>
> r = radeon_ib_ring_tests(rdev);
> diff --git a/drivers/gpu/drm/radeon/radeon_drv.c b/drivers/gpu/drm/radeon/radeon_drv.c
> index bbb0883e8ce6..62a5dfaf990b 100644
> --- a/drivers/gpu/drm/radeon/radeon_drv.c
> +++ b/drivers/gpu/drm/radeon/radeon_drv.c
> @@ -171,12 +171,6 @@ int radeon_no_wb;
> int radeon_modeset = -1;
> int radeon_dynclks = -1;
> int radeon_r4xx_atom = 0;
> -#ifdef __powerpc__
> -/* Default to PCI on PowerPC (fdo #95017) */
> -int radeon_agpmode = -1;
> -#else
> -int radeon_agpmode = 0;
> -#endif
> int radeon_vram_limit = 0;
> int radeon_gart_size = -1; /* auto */
> int radeon_benchmarking = 0;
> @@ -220,9 +214,6 @@ module_param_named(r4xx_atom, radeon_r4xx_atom, int, 0444);
> MODULE_PARM_DESC(vramlimit, "Restrict VRAM for testing, in megabytes");
> module_param_named(vramlimit, radeon_vram_limit, int, 0600);
>
> -MODULE_PARM_DESC(agpmode, "AGP Mode (-1 == PCI)");
> -module_param_named(agpmode, radeon_agpmode, int, 0444);
> -
> MODULE_PARM_DESC(gartsize, "Size of PCIE/IGP gart to setup in megabytes (32, 64, etc., -1 = auto)");
> module_param_named(gartsize, radeon_gart_size, int, 0600);
>
> diff --git a/drivers/gpu/drm/radeon/radeon_ttm.c b/drivers/gpu/drm/radeon/radeon_ttm.c
> index 5d50c9edbe80..21bb3706c13c 100644
> --- a/drivers/gpu/drm/radeon/radeon_ttm.c
> +++ b/drivers/gpu/drm/radeon/radeon_ttm.c
> @@ -86,20 +86,6 @@ static int radeon_init_mem_type(struct ttm_bo_device *bdev, uint32_t type,
> man->available_caching = TTM_PL_MASK_CACHING;
> man->default_caching = TTM_PL_FLAG_CACHED;
> man->flags = TTM_MEMTYPE_FLAG_MAPPABLE | TTM_MEMTYPE_FLAG_CMA;
> -#if IS_ENABLED(CONFIG_AGP)
> - if (rdev->flags & RADEON_IS_AGP) {
> - if (!rdev->ddev->agp) {
> - DRM_ERROR("AGP is not enabled for memory type %u\n",
> - (unsigned)type);
> - return -EINVAL;
> - }
> - if (!rdev->ddev->agp->cant_use_aperture)
> - man->flags = TTM_MEMTYPE_FLAG_MAPPABLE;
> - man->available_caching = TTM_PL_FLAG_UNCACHED |
> - TTM_PL_FLAG_WC;
> - man->default_caching = TTM_PL_FLAG_WC;
> - }
> -#endif
> break;
> case TTM_PL_VRAM:
> /* "On-card" video ram */
> @@ -411,14 +397,6 @@ static int radeon_ttm_io_mem_reserve(struct ttm_bo_device *bdev, struct ttm_mem_
> /* system memory */
> return 0;
> case TTM_PL_TT:
> -#if IS_ENABLED(CONFIG_AGP)
> - if (rdev->flags & RADEON_IS_AGP) {
> - /* RADEON_IS_AGP is set only if AGP is active */
> - mem->bus.offset = mem->start << PAGE_SHIFT;
> - mem->bus.base = rdev->mc.agp_base;
> - mem->bus.is_iomem = !rdev->ddev->agp->cant_use_aperture;
> - }
> -#endif
> break;
> case TTM_PL_VRAM:
> mem->bus.offset = mem->start << PAGE_SHIFT;
> @@ -631,12 +609,6 @@ static struct ttm_tt *radeon_ttm_tt_create(struct ttm_buffer_object *bo,
> struct radeon_ttm_tt *gtt;
>
> rdev = radeon_get_rdev(bo->bdev);
> -#if IS_ENABLED(CONFIG_AGP)
> - if (rdev->flags & RADEON_IS_AGP) {
> - return ttm_agp_tt_create(bo, rdev->ddev->agp->bridge,
> - page_flags);
> - }
> -#endif
>
> gtt = kzalloc(sizeof(struct radeon_ttm_tt), GFP_KERNEL);
> if (gtt == NULL) {
> @@ -683,11 +655,6 @@ static int radeon_ttm_tt_populate(struct ttm_tt *ttm,
> }
>
> rdev = radeon_get_rdev(ttm->bdev);
> -#if IS_ENABLED(CONFIG_AGP)
> - if (rdev->flags & RADEON_IS_AGP) {
> - return ttm_agp_tt_populate(ttm, ctx);
> - }
> -#endif
>
> #ifdef CONFIG_SWIOTLB
> if (rdev->need_swiotlb && swiotlb_nr_tbl()) {
> @@ -714,12 +681,6 @@ static void radeon_ttm_tt_unpopulate(struct ttm_tt *ttm)
> return;
>
> rdev = radeon_get_rdev(ttm->bdev);
> -#if IS_ENABLED(CONFIG_AGP)
> - if (rdev->flags & RADEON_IS_AGP) {
> - ttm_agp_tt_unpopulate(ttm);
> - return;
> - }
> -#endif
>
> #ifdef CONFIG_SWIOTLB
> if (rdev->need_swiotlb && swiotlb_nr_tbl()) {
> diff --git a/drivers/gpu/drm/radeon/rv515.c b/drivers/gpu/drm/radeon/rv515.c
> index 147e5cf8348d..8a2f16320869 100644
> --- a/drivers/gpu/drm/radeon/rv515.c
> +++ b/drivers/gpu/drm/radeon/rv515.c
> @@ -622,7 +622,6 @@ void rv515_fini(struct radeon_device *rdev)
> radeon_ib_pool_fini(rdev);
> radeon_gem_fini(rdev);
> rv370_pcie_gart_fini(rdev);
> - radeon_agp_fini(rdev);
> radeon_irq_kms_fini(rdev);
> radeon_fence_driver_fini(rdev);
> radeon_bo_fini(rdev);
> @@ -667,13 +666,6 @@ int rv515_init(struct radeon_device *rdev)
> return -EINVAL;
> /* Initialize clocks */
> radeon_get_clock_info(rdev->ddev);
> - /* initialize AGP */
> - if (rdev->flags & RADEON_IS_AGP) {
> - r = radeon_agp_init(rdev);
> - if (r) {
> - radeon_agp_disable(rdev);
> - }
> - }
> /* initialize memory controller */
> rv515_mc_init(rdev);
> rv515_debugfs(rdev);
> @@ -703,7 +695,6 @@ int rv515_init(struct radeon_device *rdev)
> radeon_ib_pool_fini(rdev);
> radeon_irq_kms_fini(rdev);
> rv370_pcie_gart_fini(rdev);
> - radeon_agp_fini(rdev);
> rdev->accel_working = false;
> }
> return 0;
> diff --git a/drivers/gpu/drm/radeon/rv770.c b/drivers/gpu/drm/radeon/rv770.c
> index 21f653ae1e1b..20bf54266f24 100644
> --- a/drivers/gpu/drm/radeon/rv770.c
> +++ b/drivers/gpu/drm/radeon/rv770.c
> @@ -1943,12 +1943,6 @@ int rv770_init(struct radeon_device *rdev)
> r = radeon_fence_driver_init(rdev);
> if (r)
> return r;
> - /* initialize AGP */
> - if (rdev->flags & RADEON_IS_AGP) {
> - r = radeon_agp_init(rdev);
> - if (r)
> - radeon_agp_disable(rdev);
> - }
> r = rv770_mc_init(rdev);
> if (r)
> return r;
> @@ -2015,7 +2009,6 @@ void rv770_fini(struct radeon_device *rdev)
> r600_vram_scratch_fini(rdev);
> radeon_gem_fini(rdev);
> radeon_fence_driver_fini(rdev);
> - radeon_agp_fini(rdev);
> radeon_bo_fini(rdev);
> radeon_atombios_fini(rdev);
> kfree(rdev->bios);
>
--
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Maxfeldstr. 5, 90409 Nürnberg, Germany
(HRB 36809, AG Nürnberg)
Geschäftsführer: Felix Imendörffer
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_______________________________________________
dri-devel mailing list
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^ permalink raw reply [flat|nested] 81+ messages in thread
* Re: [PATCH 1/3] drm/radeon: remove AGP support
@ 2020-05-12 18:20 ` Thomas Zimmermann
0 siblings, 0 replies; 81+ messages in thread
From: Thomas Zimmermann @ 2020-05-12 18:20 UTC (permalink / raw)
To: Christian König, dri-devel, amd-gfx, nouveau
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Hi Christian
Am 11.05.20 um 19:17 schrieb Christian König:
> AGP is deprecated for 10+ years now and not used any more on modern hardware.
>
> Old hardware should continue to work in PCI mode.
>
> Signed-off-by: Christian König <christian.koenig@amd.com>
> ---
> drivers/gpu/drm/radeon/Makefile | 4 +-
> drivers/gpu/drm/radeon/evergreen.c | 7 -
> drivers/gpu/drm/radeon/r100.c | 10 +-
> drivers/gpu/drm/radeon/r300.c | 9 -
> drivers/gpu/drm/radeon/r420.c | 9 -
> drivers/gpu/drm/radeon/r520.c | 8 -
> drivers/gpu/drm/radeon/r600.c | 6 -
> drivers/gpu/drm/radeon/radeon.h | 11 -
> drivers/gpu/drm/radeon/radeon_agp.c | 290 -------------------------
> drivers/gpu/drm/radeon/radeon_device.c | 23 +-
> drivers/gpu/drm/radeon/radeon_drv.c | 9 -
In radeon_drv.c, the field drm_device.agp is still being initialized in
radeon_pci_probe() and cleaned up in radeon_driver_unload_kms(). Is this
intentional?
Best regards
Thomas
> drivers/gpu/drm/radeon/radeon_ttm.c | 39 ----
> drivers/gpu/drm/radeon/rv515.c | 9 -
> drivers/gpu/drm/radeon/rv770.c | 7 -
> 14 files changed, 4 insertions(+), 437 deletions(-)
> delete mode 100644 drivers/gpu/drm/radeon/radeon_agp.c
>
> diff --git a/drivers/gpu/drm/radeon/Makefile b/drivers/gpu/drm/radeon/Makefile
> index c693b2ca0329..77429cfd303e 100644
> --- a/drivers/gpu/drm/radeon/Makefile
> +++ b/drivers/gpu/drm/radeon/Makefile
> @@ -61,8 +61,8 @@ radeon-y := radeon_drv.o
>
> # add KMS driver
> radeon-y += radeon_device.o radeon_asic.o radeon_kms.o \
> - radeon_atombios.o radeon_agp.o atombios_crtc.o radeon_combios.o \
> - atom.o radeon_fence.o radeon_ttm.o radeon_object.o radeon_gart.o \
> + radeon_atombios.o atombios_crtc.o radeon_combios.o atom.o \
> + radeon_fence.o radeon_ttm.o radeon_object.o radeon_gart.o \
> radeon_legacy_crtc.o radeon_legacy_encoders.o radeon_connectors.o \
> radeon_encoders.o radeon_display.o radeon_cursor.o radeon_i2c.o \
> radeon_clocks.o radeon_fb.o radeon_gem.o radeon_ring.o radeon_irq_kms.o \
> diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c
> index 14d90dc376e7..66b3d9a2c6dd 100644
> --- a/drivers/gpu/drm/radeon/evergreen.c
> +++ b/drivers/gpu/drm/radeon/evergreen.c
> @@ -5216,12 +5216,6 @@ int evergreen_init(struct radeon_device *rdev)
> r = radeon_fence_driver_init(rdev);
> if (r)
> return r;
> - /* initialize AGP */
> - if (rdev->flags & RADEON_IS_AGP) {
> - r = radeon_agp_init(rdev);
> - if (r)
> - radeon_agp_disable(rdev);
> - }
> /* initialize memory controller */
> r = evergreen_mc_init(rdev);
> if (r)
> @@ -5315,7 +5309,6 @@ void evergreen_fini(struct radeon_device *rdev)
> r600_vram_scratch_fini(rdev);
> radeon_gem_fini(rdev);
> radeon_fence_driver_fini(rdev);
> - radeon_agp_fini(rdev);
> radeon_bo_fini(rdev);
> radeon_atombios_fini(rdev);
> kfree(rdev->bios);
> diff --git a/drivers/gpu/drm/radeon/r100.c b/drivers/gpu/drm/radeon/r100.c
> index 24c8db673931..320b1b40a30a 100644
> --- a/drivers/gpu/drm/radeon/r100.c
> +++ b/drivers/gpu/drm/radeon/r100.c
> @@ -3382,7 +3382,7 @@ void r100_bandwidth_update(struct radeon_device *rdev)
>
> if (rdev->flags & RADEON_IS_AGP) {
> fixed20_12 agpmode_ff;
> - agpmode_ff.full = dfixed_const(radeon_agpmode);
> + agpmode_ff.full = dfixed_const(0);
> temp_ff.full = dfixed_const_666(16);
> sclk_eff_ff.full -= dfixed_mul(agpmode_ff, temp_ff);
> }
> @@ -3992,7 +3992,6 @@ void r100_fini(struct radeon_device *rdev)
> radeon_gem_fini(rdev);
> if (rdev->flags & RADEON_IS_PCI)
> r100_pci_gart_fini(rdev);
> - radeon_agp_fini(rdev);
> radeon_irq_kms_fini(rdev);
> radeon_fence_driver_fini(rdev);
> radeon_bo_fini(rdev);
> @@ -4068,13 +4067,6 @@ int r100_init(struct radeon_device *rdev)
> r100_errata(rdev);
> /* Initialize clocks */
> radeon_get_clock_info(rdev->ddev);
> - /* initialize AGP */
> - if (rdev->flags & RADEON_IS_AGP) {
> - r = radeon_agp_init(rdev);
> - if (r) {
> - radeon_agp_disable(rdev);
> - }
> - }
> /* initialize VRAM */
> r100_mc_init(rdev);
> /* Fence driver */
> diff --git a/drivers/gpu/drm/radeon/r300.c b/drivers/gpu/drm/radeon/r300.c
> index 3b7ead5be5bf..afd688629cf9 100644
> --- a/drivers/gpu/drm/radeon/r300.c
> +++ b/drivers/gpu/drm/radeon/r300.c
> @@ -1498,7 +1498,6 @@ void r300_fini(struct radeon_device *rdev)
> rv370_pcie_gart_fini(rdev);
> if (rdev->flags & RADEON_IS_PCI)
> r100_pci_gart_fini(rdev);
> - radeon_agp_fini(rdev);
> radeon_irq_kms_fini(rdev);
> radeon_fence_driver_fini(rdev);
> radeon_bo_fini(rdev);
> @@ -1547,13 +1546,6 @@ int r300_init(struct radeon_device *rdev)
> r300_errata(rdev);
> /* Initialize clocks */
> radeon_get_clock_info(rdev->ddev);
> - /* initialize AGP */
> - if (rdev->flags & RADEON_IS_AGP) {
> - r = radeon_agp_init(rdev);
> - if (r) {
> - radeon_agp_disable(rdev);
> - }
> - }
> /* initialize memory controller */
> r300_mc_init(rdev);
> /* Fence driver */
> @@ -1592,7 +1584,6 @@ int r300_init(struct radeon_device *rdev)
> rv370_pcie_gart_fini(rdev);
> if (rdev->flags & RADEON_IS_PCI)
> r100_pci_gart_fini(rdev);
> - radeon_agp_fini(rdev);
> rdev->accel_working = false;
> }
> return 0;
> diff --git a/drivers/gpu/drm/radeon/r420.c b/drivers/gpu/drm/radeon/r420.c
> index 1d4c04e0a449..3cb337dacd56 100644
> --- a/drivers/gpu/drm/radeon/r420.c
> +++ b/drivers/gpu/drm/radeon/r420.c
> @@ -366,7 +366,6 @@ void r420_fini(struct radeon_device *rdev)
> rv370_pcie_gart_fini(rdev);
> if (rdev->flags & RADEON_IS_PCI)
> r100_pci_gart_fini(rdev);
> - radeon_agp_fini(rdev);
> radeon_irq_kms_fini(rdev);
> radeon_fence_driver_fini(rdev);
> radeon_bo_fini(rdev);
> @@ -419,13 +418,6 @@ int r420_init(struct radeon_device *rdev)
>
> /* Initialize clocks */
> radeon_get_clock_info(rdev->ddev);
> - /* initialize AGP */
> - if (rdev->flags & RADEON_IS_AGP) {
> - r = radeon_agp_init(rdev);
> - if (r) {
> - radeon_agp_disable(rdev);
> - }
> - }
> /* initialize memory controller */
> r300_mc_init(rdev);
> r420_debugfs(rdev);
> @@ -470,7 +462,6 @@ int r420_init(struct radeon_device *rdev)
> rv370_pcie_gart_fini(rdev);
> if (rdev->flags & RADEON_IS_PCI)
> r100_pci_gart_fini(rdev);
> - radeon_agp_fini(rdev);
> rdev->accel_working = false;
> }
> return 0;
> diff --git a/drivers/gpu/drm/radeon/r520.c b/drivers/gpu/drm/radeon/r520.c
> index fc78e64ae727..76ac87d72406 100644
> --- a/drivers/gpu/drm/radeon/r520.c
> +++ b/drivers/gpu/drm/radeon/r520.c
> @@ -288,13 +288,6 @@ int r520_init(struct radeon_device *rdev)
> }
> /* Initialize clocks */
> radeon_get_clock_info(rdev->ddev);
> - /* initialize AGP */
> - if (rdev->flags & RADEON_IS_AGP) {
> - r = radeon_agp_init(rdev);
> - if (r) {
> - radeon_agp_disable(rdev);
> - }
> - }
> /* initialize memory controller */
> r520_mc_init(rdev);
> rv515_debugfs(rdev);
> @@ -324,7 +317,6 @@ int r520_init(struct radeon_device *rdev)
> radeon_ib_pool_fini(rdev);
> radeon_irq_kms_fini(rdev);
> rv370_pcie_gart_fini(rdev);
> - radeon_agp_fini(rdev);
> rdev->accel_working = false;
> }
> return 0;
> diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c
> index d9a33ca768f3..4a5ac15893c2 100644
> --- a/drivers/gpu/drm/radeon/r600.c
> +++ b/drivers/gpu/drm/radeon/r600.c
> @@ -3286,11 +3286,6 @@ int r600_init(struct radeon_device *rdev)
> r = radeon_fence_driver_init(rdev);
> if (r)
> return r;
> - if (rdev->flags & RADEON_IS_AGP) {
> - r = radeon_agp_init(rdev);
> - if (r)
> - radeon_agp_disable(rdev);
> - }
> r = r600_mc_init(rdev);
> if (r)
> return r;
> @@ -3353,7 +3348,6 @@ void r600_fini(struct radeon_device *rdev)
> radeon_irq_kms_fini(rdev);
> r600_pcie_gart_fini(rdev);
> r600_vram_scratch_fini(rdev);
> - radeon_agp_fini(rdev);
> radeon_gem_fini(rdev);
> radeon_fence_driver_fini(rdev);
> radeon_bo_fini(rdev);
> diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h
> index 30e32adc1fc6..377e1403b134 100644
> --- a/drivers/gpu/drm/radeon/radeon.h
> +++ b/drivers/gpu/drm/radeon/radeon.h
> @@ -91,7 +91,6 @@ extern int radeon_no_wb;
> extern int radeon_modeset;
> extern int radeon_dynclks;
> extern int radeon_r4xx_atom;
> -extern int radeon_agpmode;
> extern int radeon_vram_limit;
> extern int radeon_gart_size;
> extern int radeon_benchmarking;
> @@ -1116,16 +1115,6 @@ typedef int (*radeon_packet0_check_t)(struct radeon_cs_parser *p,
> typedef int (*radeon_packet3_check_t)(struct radeon_cs_parser *p,
> struct radeon_cs_packet *pkt);
>
> -
> -/*
> - * AGP
> - */
> -int radeon_agp_init(struct radeon_device *rdev);
> -void radeon_agp_resume(struct radeon_device *rdev);
> -void radeon_agp_suspend(struct radeon_device *rdev);
> -void radeon_agp_fini(struct radeon_device *rdev);
> -
> -
> /*
> * Writeback
> */
> diff --git a/drivers/gpu/drm/radeon/radeon_agp.c b/drivers/gpu/drm/radeon/radeon_agp.c
> deleted file mode 100644
> index 0aca7bdf54c7..000000000000
> --- a/drivers/gpu/drm/radeon/radeon_agp.c
> +++ /dev/null
> @@ -1,290 +0,0 @@
> -/*
> - * Copyright 2008 Red Hat Inc.
> - * Copyright 2009 Jerome Glisse.
> - *
> - * Permission is hereby granted, free of charge, to any person obtaining a
> - * copy of this software and associated documentation files (the "Software"),
> - * to deal in the Software without restriction, including without limitation
> - * the rights to use, copy, modify, merge, publish, distribute, sublicense,
> - * and/or sell copies of the Software, and to permit persons to whom the
> - * Software is furnished to do so, subject to the following conditions:
> - *
> - * The above copyright notice and this permission notice shall be included in
> - * all copies or substantial portions of the Software.
> - *
> - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
> - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
> - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
> - * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
> - * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
> - * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
> - * OTHER DEALINGS IN THE SOFTWARE.
> - *
> - * Authors:
> - * Dave Airlie
> - * Jerome Glisse <glisse@freedesktop.org>
> - */
> -
> -#include <linux/pci.h>
> -
> -#include <drm/drm_agpsupport.h>
> -#include <drm/drm_device.h>
> -#include <drm/radeon_drm.h>
> -
> -#include "radeon.h"
> -
> -#if IS_ENABLED(CONFIG_AGP)
> -
> -struct radeon_agpmode_quirk {
> - u32 hostbridge_vendor;
> - u32 hostbridge_device;
> - u32 chip_vendor;
> - u32 chip_device;
> - u32 subsys_vendor;
> - u32 subsys_device;
> - u32 default_mode;
> -};
> -
> -static struct radeon_agpmode_quirk radeon_agpmode_quirk_list[] = {
> - /* Intel E7505 Memory Controller Hub / RV350 AR [Radeon 9600XT] Needs AGPMode 4 (deb #515326) */
> - { PCI_VENDOR_ID_INTEL, 0x2550, PCI_VENDOR_ID_ATI, 0x4152, 0x1458, 0x4038, 4},
> - /* Intel 82865G/PE/P DRAM Controller/Host-Hub / Mobility 9800 Needs AGPMode 4 (deb #462590) */
> - { PCI_VENDOR_ID_INTEL, 0x2570, PCI_VENDOR_ID_ATI, 0x4a4e, PCI_VENDOR_ID_DELL, 0x5106, 4},
> - /* Intel 82865G/PE/P DRAM Controller/Host-Hub / RV280 [Radeon 9200 SE] Needs AGPMode 4 (lp #300304) */
> - { PCI_VENDOR_ID_INTEL, 0x2570, PCI_VENDOR_ID_ATI, 0x5964,
> - 0x148c, 0x2073, 4},
> - /* Intel 82855PM Processor to I/O Controller / Mobility M6 LY Needs AGPMode 1 (deb #467235) */
> - { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4c59,
> - PCI_VENDOR_ID_IBM, 0x052f, 1},
> - /* Intel 82855PM host bridge / Mobility 9600 M10 RV350 Needs AGPMode 1 (lp #195051) */
> - { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4e50,
> - PCI_VENDOR_ID_IBM, 0x0550, 1},
> - /* Intel 82855PM host bridge / RV250/M9 GL [Mobility FireGL 9000/Radeon 9000] needs AGPMode 1 (Thinkpad T40p) */
> - { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4c66,
> - PCI_VENDOR_ID_IBM, 0x054d, 1},
> - /* Intel 82855PM host bridge / Mobility M7 needs AGPMode 1 */
> - { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4c57,
> - PCI_VENDOR_ID_IBM, 0x0530, 1},
> - /* Intel 82855PM host bridge / FireGL Mobility T2 RV350 Needs AGPMode 2 (fdo #20647) */
> - { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4e54,
> - PCI_VENDOR_ID_IBM, 0x054f, 2},
> - /* Intel 82855PM host bridge / Mobility M9+ / VaioPCG-V505DX Needs AGPMode 2 (fdo #17928) */
> - { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x5c61,
> - PCI_VENDOR_ID_SONY, 0x816b, 2},
> - /* Intel 82855PM Processor to I/O Controller / Mobility M9+ Needs AGPMode 8 (phoronix forum) */
> - { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x5c61,
> - PCI_VENDOR_ID_SONY, 0x8195, 8},
> - /* Intel 82830 830 Chipset Host Bridge / Mobility M6 LY Needs AGPMode 2 (fdo #17360)*/
> - { PCI_VENDOR_ID_INTEL, 0x3575, PCI_VENDOR_ID_ATI, 0x4c59,
> - PCI_VENDOR_ID_DELL, 0x00e3, 2},
> - /* Intel 82852/82855 host bridge / Mobility FireGL 9000 RV250 Needs AGPMode 1 (lp #296617) */
> - { PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4c66,
> - PCI_VENDOR_ID_DELL, 0x0149, 1},
> - /* Intel 82855PM host bridge / Mobility FireGL 9000 RV250 Needs AGPMode 1 for suspend/resume */
> - { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4c66,
> - PCI_VENDOR_ID_IBM, 0x0531, 1},
> - /* Intel 82852/82855 host bridge / Mobility 9600 M10 RV350 Needs AGPMode 1 (deb #467460) */
> - { PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4e50,
> - 0x1025, 0x0061, 1},
> - /* Intel 82852/82855 host bridge / Mobility 9600 M10 RV350 Needs AGPMode 1 (lp #203007) */
> - { PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4e50,
> - 0x1025, 0x0064, 1},
> - /* Intel 82852/82855 host bridge / Mobility 9600 M10 RV350 Needs AGPMode 1 (lp #141551) */
> - { PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4e50,
> - PCI_VENDOR_ID_ASUSTEK, 0x1942, 1},
> - /* Intel 82852/82855 host bridge / Mobility 9600/9700 Needs AGPMode 1 (deb #510208) */
> - { PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4e50,
> - 0x10cf, 0x127f, 1},
> - /* ASRock K7VT4A+ AGP 8x / ATI Radeon 9250 AGP Needs AGPMode 4 (lp #133192) */
> - { 0x1849, 0x3189, PCI_VENDOR_ID_ATI, 0x5960,
> - 0x1787, 0x5960, 4},
> - /* VIA K8M800 Host Bridge / RV280 [Radeon 9200 PRO] Needs AGPMode 4 (fdo #12544) */
> - { PCI_VENDOR_ID_VIA, 0x0204, PCI_VENDOR_ID_ATI, 0x5960,
> - 0x17af, 0x2020, 4},
> - /* VIA KT880 Host Bridge / RV350 [Radeon 9550] Needs AGPMode 4 (fdo #19981) */
> - { PCI_VENDOR_ID_VIA, 0x0269, PCI_VENDOR_ID_ATI, 0x4153,
> - PCI_VENDOR_ID_ASUSTEK, 0x003c, 4},
> - /* VIA VT8363 Host Bridge / R200 QL [Radeon 8500] Needs AGPMode 2 (lp #141551) */
> - { PCI_VENDOR_ID_VIA, 0x0305, PCI_VENDOR_ID_ATI, 0x514c,
> - PCI_VENDOR_ID_ATI, 0x013a, 2},
> - /* VIA VT82C693A Host Bridge / RV280 [Radeon 9200 PRO] Needs AGPMode 2 (deb #515512) */
> - { PCI_VENDOR_ID_VIA, 0x0691, PCI_VENDOR_ID_ATI, 0x5960,
> - PCI_VENDOR_ID_ASUSTEK, 0x004c, 2},
> - /* VIA VT82C693A Host Bridge / RV280 [Radeon 9200 PRO] Needs AGPMode 2 */
> - { PCI_VENDOR_ID_VIA, 0x0691, PCI_VENDOR_ID_ATI, 0x5960,
> - PCI_VENDOR_ID_ASUSTEK, 0x0054, 2},
> - /* VIA VT8377 Host Bridge / R200 QM [Radeon 9100] Needs AGPMode 4 (deb #461144) */
> - { PCI_VENDOR_ID_VIA, 0x3189, PCI_VENDOR_ID_ATI, 0x514d,
> - 0x174b, 0x7149, 4},
> - /* VIA VT8377 Host Bridge / RV280 [Radeon 9200 PRO] Needs AGPMode 4 (lp #312693) */
> - { PCI_VENDOR_ID_VIA, 0x3189, PCI_VENDOR_ID_ATI, 0x5960,
> - 0x1462, 0x0380, 4},
> - /* VIA VT8377 Host Bridge / RV280 Needs AGPMode 4 (ati ML) */
> - { PCI_VENDOR_ID_VIA, 0x3189, PCI_VENDOR_ID_ATI, 0x5964,
> - 0x148c, 0x2073, 4},
> - /* ATI Host Bridge / RV280 [M9+] Needs AGPMode 1 (phoronix forum) */
> - { PCI_VENDOR_ID_ATI, 0xcbb2, PCI_VENDOR_ID_ATI, 0x5c61,
> - PCI_VENDOR_ID_SONY, 0x8175, 1},
> - { 0, 0, 0, 0, 0, 0, 0 },
> -};
> -#endif
> -
> -int radeon_agp_init(struct radeon_device *rdev)
> -{
> -#if IS_ENABLED(CONFIG_AGP)
> - struct radeon_agpmode_quirk *p = radeon_agpmode_quirk_list;
> - struct drm_agp_mode mode;
> - struct drm_agp_info info;
> - uint32_t agp_status;
> - int default_mode;
> - bool is_v3;
> - int ret;
> -
> - /* Acquire AGP. */
> - ret = drm_agp_acquire(rdev->ddev);
> - if (ret) {
> - DRM_ERROR("Unable to acquire AGP: %d\n", ret);
> - return ret;
> - }
> -
> - ret = drm_agp_info(rdev->ddev, &info);
> - if (ret) {
> - drm_agp_release(rdev->ddev);
> - DRM_ERROR("Unable to get AGP info: %d\n", ret);
> - return ret;
> - }
> -
> - if (rdev->ddev->agp->agp_info.aper_size < 32) {
> - drm_agp_release(rdev->ddev);
> - dev_warn(rdev->dev, "AGP aperture too small (%zuM) "
> - "need at least 32M, disabling AGP\n",
> - rdev->ddev->agp->agp_info.aper_size);
> - return -EINVAL;
> - }
> -
> - mode.mode = info.mode;
> - /* chips with the agp to pcie bridge don't have the AGP_STATUS register
> - * Just use the whatever mode the host sets up.
> - */
> - if (rdev->family <= CHIP_RV350)
> - agp_status = (RREG32(RADEON_AGP_STATUS) | RADEON_AGPv3_MODE) & mode.mode;
> - else
> - agp_status = mode.mode;
> - is_v3 = !!(agp_status & RADEON_AGPv3_MODE);
> -
> - if (is_v3) {
> - default_mode = (agp_status & RADEON_AGPv3_8X_MODE) ? 8 : 4;
> - } else {
> - if (agp_status & RADEON_AGP_4X_MODE) {
> - default_mode = 4;
> - } else if (agp_status & RADEON_AGP_2X_MODE) {
> - default_mode = 2;
> - } else {
> - default_mode = 1;
> - }
> - }
> -
> - /* Apply AGPMode Quirks */
> - while (p && p->chip_device != 0) {
> - if (info.id_vendor == p->hostbridge_vendor &&
> - info.id_device == p->hostbridge_device &&
> - rdev->pdev->vendor == p->chip_vendor &&
> - rdev->pdev->device == p->chip_device &&
> - rdev->pdev->subsystem_vendor == p->subsys_vendor &&
> - rdev->pdev->subsystem_device == p->subsys_device) {
> - default_mode = p->default_mode;
> - }
> - ++p;
> - }
> -
> - if (radeon_agpmode > 0) {
> - if ((radeon_agpmode < (is_v3 ? 4 : 1)) ||
> - (radeon_agpmode > (is_v3 ? 8 : 4)) ||
> - (radeon_agpmode & (radeon_agpmode - 1))) {
> - DRM_ERROR("Illegal AGP Mode: %d (valid %s), leaving at %d\n",
> - radeon_agpmode, is_v3 ? "4, 8" : "1, 2, 4",
> - default_mode);
> - radeon_agpmode = default_mode;
> - } else {
> - DRM_INFO("AGP mode requested: %d\n", radeon_agpmode);
> - }
> - } else {
> - radeon_agpmode = default_mode;
> - }
> -
> - mode.mode &= ~RADEON_AGP_MODE_MASK;
> - if (is_v3) {
> - switch (radeon_agpmode) {
> - case 8:
> - mode.mode |= RADEON_AGPv3_8X_MODE;
> - break;
> - case 4:
> - default:
> - mode.mode |= RADEON_AGPv3_4X_MODE;
> - break;
> - }
> - } else {
> - switch (radeon_agpmode) {
> - case 4:
> - mode.mode |= RADEON_AGP_4X_MODE;
> - break;
> - case 2:
> - mode.mode |= RADEON_AGP_2X_MODE;
> - break;
> - case 1:
> - default:
> - mode.mode |= RADEON_AGP_1X_MODE;
> - break;
> - }
> - }
> -
> - mode.mode &= ~RADEON_AGP_FW_MODE; /* disable fw */
> - ret = drm_agp_enable(rdev->ddev, mode);
> - if (ret) {
> - DRM_ERROR("Unable to enable AGP (mode = 0x%lx)\n", mode.mode);
> - drm_agp_release(rdev->ddev);
> - return ret;
> - }
> -
> - rdev->mc.agp_base = rdev->ddev->agp->agp_info.aper_base;
The field agp_base seems to be used to program HW registers. Yet I
cannot find its initialization after applying the patchset. Does some of
this removed setup code need to be moved elsewhere instead?
Best regards
Thomas
> - rdev->mc.gtt_size = rdev->ddev->agp->agp_info.aper_size << 20;
> - rdev->mc.gtt_start = rdev->mc.agp_base;
> - rdev->mc.gtt_end = rdev->mc.gtt_start + rdev->mc.gtt_size - 1;
> - dev_info(rdev->dev, "GTT: %lluM 0x%08llX - 0x%08llX\n",
> - rdev->mc.gtt_size >> 20, rdev->mc.gtt_start, rdev->mc.gtt_end);
> -
> - /* workaround some hw issues */
> - if (rdev->family < CHIP_R200) {
> - WREG32(RADEON_AGP_CNTL, RREG32(RADEON_AGP_CNTL) | 0x000e0000);
> - }
> - return 0;
> -#else
> - return 0;
> -#endif
> -}
> -
> -void radeon_agp_resume(struct radeon_device *rdev)
> -{
> -#if IS_ENABLED(CONFIG_AGP)
> - int r;
> - if (rdev->flags & RADEON_IS_AGP) {
> - r = radeon_agp_init(rdev);
> - if (r)
> - dev_warn(rdev->dev, "radeon AGP reinit failed\n");
> - }
> -#endif
> -}
> -
> -void radeon_agp_fini(struct radeon_device *rdev)
> -{
> -#if IS_ENABLED(CONFIG_AGP)
> - if (rdev->ddev->agp && rdev->ddev->agp->acquired) {
> - drm_agp_release(rdev->ddev);
> - }
> -#endif
> -}
> -
> -void radeon_agp_suspend(struct radeon_device *rdev)
> -{
> - radeon_agp_fini(rdev);
> -}
> diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c
> index 266e3cbbd09b..12e5c5d81c47 100644
> --- a/drivers/gpu/drm/radeon/radeon_device.c
> +++ b/drivers/gpu/drm/radeon/radeon_device.c
> @@ -1145,22 +1145,6 @@ static void radeon_check_arguments(struct radeon_device *rdev)
> }
> rdev->mc.gtt_size = (uint64_t)radeon_gart_size << 20;
>
> - /* AGP mode can only be -1, 1, 2, 4, 8 */
> - switch (radeon_agpmode) {
> - case -1:
> - case 0:
> - case 1:
> - case 2:
> - case 4:
> - case 8:
> - break;
> - default:
> - dev_warn(rdev->dev, "invalid AGP mode %d (valid mode: "
> - "-1, 0, 1, 2, 4, 8)\n", radeon_agpmode);
> - radeon_agpmode = 0;
> - break;
> - }
> -
> if (!radeon_check_pot_argument(radeon_vm_size)) {
> dev_warn(rdev->dev, "VM size (%d) must be a power of 2\n",
> radeon_vm_size);
> @@ -1348,9 +1332,8 @@ int radeon_device_init(struct radeon_device *rdev,
> rdev->flags &= ~RADEON_IS_AGP;
> }
>
> - if (rdev->flags & RADEON_IS_AGP && radeon_agpmode == -1) {
> + if (rdev->flags & RADEON_IS_AGP)
> radeon_agp_disable(rdev);
> - }
>
> /* Set the internal MC address mask
> * This is the max address of the GPU's
> @@ -1636,8 +1619,6 @@ int radeon_suspend_kms(struct drm_device *dev, bool suspend,
> */
> radeon_bo_evict_vram(rdev);
>
> - radeon_agp_suspend(rdev);
> -
> pci_save_state(dev->pdev);
> if (freeze && rdev->family >= CHIP_CEDAR && !(rdev->flags & RADEON_IS_IGP)) {
> rdev->asic->asic_reset(rdev, true);
> @@ -1687,8 +1668,6 @@ int radeon_resume_kms(struct drm_device *dev, bool resume, bool fbcon)
> return -1;
> }
> }
> - /* resume AGP if in use */
> - radeon_agp_resume(rdev);
> radeon_resume(rdev);
>
> r = radeon_ib_ring_tests(rdev);
> diff --git a/drivers/gpu/drm/radeon/radeon_drv.c b/drivers/gpu/drm/radeon/radeon_drv.c
> index bbb0883e8ce6..62a5dfaf990b 100644
> --- a/drivers/gpu/drm/radeon/radeon_drv.c
> +++ b/drivers/gpu/drm/radeon/radeon_drv.c
> @@ -171,12 +171,6 @@ int radeon_no_wb;
> int radeon_modeset = -1;
> int radeon_dynclks = -1;
> int radeon_r4xx_atom = 0;
> -#ifdef __powerpc__
> -/* Default to PCI on PowerPC (fdo #95017) */
> -int radeon_agpmode = -1;
> -#else
> -int radeon_agpmode = 0;
> -#endif
> int radeon_vram_limit = 0;
> int radeon_gart_size = -1; /* auto */
> int radeon_benchmarking = 0;
> @@ -220,9 +214,6 @@ module_param_named(r4xx_atom, radeon_r4xx_atom, int, 0444);
> MODULE_PARM_DESC(vramlimit, "Restrict VRAM for testing, in megabytes");
> module_param_named(vramlimit, radeon_vram_limit, int, 0600);
>
> -MODULE_PARM_DESC(agpmode, "AGP Mode (-1 == PCI)");
> -module_param_named(agpmode, radeon_agpmode, int, 0444);
> -
> MODULE_PARM_DESC(gartsize, "Size of PCIE/IGP gart to setup in megabytes (32, 64, etc., -1 = auto)");
> module_param_named(gartsize, radeon_gart_size, int, 0600);
>
> diff --git a/drivers/gpu/drm/radeon/radeon_ttm.c b/drivers/gpu/drm/radeon/radeon_ttm.c
> index 5d50c9edbe80..21bb3706c13c 100644
> --- a/drivers/gpu/drm/radeon/radeon_ttm.c
> +++ b/drivers/gpu/drm/radeon/radeon_ttm.c
> @@ -86,20 +86,6 @@ static int radeon_init_mem_type(struct ttm_bo_device *bdev, uint32_t type,
> man->available_caching = TTM_PL_MASK_CACHING;
> man->default_caching = TTM_PL_FLAG_CACHED;
> man->flags = TTM_MEMTYPE_FLAG_MAPPABLE | TTM_MEMTYPE_FLAG_CMA;
> -#if IS_ENABLED(CONFIG_AGP)
> - if (rdev->flags & RADEON_IS_AGP) {
> - if (!rdev->ddev->agp) {
> - DRM_ERROR("AGP is not enabled for memory type %u\n",
> - (unsigned)type);
> - return -EINVAL;
> - }
> - if (!rdev->ddev->agp->cant_use_aperture)
> - man->flags = TTM_MEMTYPE_FLAG_MAPPABLE;
> - man->available_caching = TTM_PL_FLAG_UNCACHED |
> - TTM_PL_FLAG_WC;
> - man->default_caching = TTM_PL_FLAG_WC;
> - }
> -#endif
> break;
> case TTM_PL_VRAM:
> /* "On-card" video ram */
> @@ -411,14 +397,6 @@ static int radeon_ttm_io_mem_reserve(struct ttm_bo_device *bdev, struct ttm_mem_
> /* system memory */
> return 0;
> case TTM_PL_TT:
> -#if IS_ENABLED(CONFIG_AGP)
> - if (rdev->flags & RADEON_IS_AGP) {
> - /* RADEON_IS_AGP is set only if AGP is active */
> - mem->bus.offset = mem->start << PAGE_SHIFT;
> - mem->bus.base = rdev->mc.agp_base;
> - mem->bus.is_iomem = !rdev->ddev->agp->cant_use_aperture;
> - }
> -#endif
> break;
> case TTM_PL_VRAM:
> mem->bus.offset = mem->start << PAGE_SHIFT;
> @@ -631,12 +609,6 @@ static struct ttm_tt *radeon_ttm_tt_create(struct ttm_buffer_object *bo,
> struct radeon_ttm_tt *gtt;
>
> rdev = radeon_get_rdev(bo->bdev);
> -#if IS_ENABLED(CONFIG_AGP)
> - if (rdev->flags & RADEON_IS_AGP) {
> - return ttm_agp_tt_create(bo, rdev->ddev->agp->bridge,
> - page_flags);
> - }
> -#endif
>
> gtt = kzalloc(sizeof(struct radeon_ttm_tt), GFP_KERNEL);
> if (gtt == NULL) {
> @@ -683,11 +655,6 @@ static int radeon_ttm_tt_populate(struct ttm_tt *ttm,
> }
>
> rdev = radeon_get_rdev(ttm->bdev);
> -#if IS_ENABLED(CONFIG_AGP)
> - if (rdev->flags & RADEON_IS_AGP) {
> - return ttm_agp_tt_populate(ttm, ctx);
> - }
> -#endif
>
> #ifdef CONFIG_SWIOTLB
> if (rdev->need_swiotlb && swiotlb_nr_tbl()) {
> @@ -714,12 +681,6 @@ static void radeon_ttm_tt_unpopulate(struct ttm_tt *ttm)
> return;
>
> rdev = radeon_get_rdev(ttm->bdev);
> -#if IS_ENABLED(CONFIG_AGP)
> - if (rdev->flags & RADEON_IS_AGP) {
> - ttm_agp_tt_unpopulate(ttm);
> - return;
> - }
> -#endif
>
> #ifdef CONFIG_SWIOTLB
> if (rdev->need_swiotlb && swiotlb_nr_tbl()) {
> diff --git a/drivers/gpu/drm/radeon/rv515.c b/drivers/gpu/drm/radeon/rv515.c
> index 147e5cf8348d..8a2f16320869 100644
> --- a/drivers/gpu/drm/radeon/rv515.c
> +++ b/drivers/gpu/drm/radeon/rv515.c
> @@ -622,7 +622,6 @@ void rv515_fini(struct radeon_device *rdev)
> radeon_ib_pool_fini(rdev);
> radeon_gem_fini(rdev);
> rv370_pcie_gart_fini(rdev);
> - radeon_agp_fini(rdev);
> radeon_irq_kms_fini(rdev);
> radeon_fence_driver_fini(rdev);
> radeon_bo_fini(rdev);
> @@ -667,13 +666,6 @@ int rv515_init(struct radeon_device *rdev)
> return -EINVAL;
> /* Initialize clocks */
> radeon_get_clock_info(rdev->ddev);
> - /* initialize AGP */
> - if (rdev->flags & RADEON_IS_AGP) {
> - r = radeon_agp_init(rdev);
> - if (r) {
> - radeon_agp_disable(rdev);
> - }
> - }
> /* initialize memory controller */
> rv515_mc_init(rdev);
> rv515_debugfs(rdev);
> @@ -703,7 +695,6 @@ int rv515_init(struct radeon_device *rdev)
> radeon_ib_pool_fini(rdev);
> radeon_irq_kms_fini(rdev);
> rv370_pcie_gart_fini(rdev);
> - radeon_agp_fini(rdev);
> rdev->accel_working = false;
> }
> return 0;
> diff --git a/drivers/gpu/drm/radeon/rv770.c b/drivers/gpu/drm/radeon/rv770.c
> index 21f653ae1e1b..20bf54266f24 100644
> --- a/drivers/gpu/drm/radeon/rv770.c
> +++ b/drivers/gpu/drm/radeon/rv770.c
> @@ -1943,12 +1943,6 @@ int rv770_init(struct radeon_device *rdev)
> r = radeon_fence_driver_init(rdev);
> if (r)
> return r;
> - /* initialize AGP */
> - if (rdev->flags & RADEON_IS_AGP) {
> - r = radeon_agp_init(rdev);
> - if (r)
> - radeon_agp_disable(rdev);
> - }
> r = rv770_mc_init(rdev);
> if (r)
> return r;
> @@ -2015,7 +2009,6 @@ void rv770_fini(struct radeon_device *rdev)
> r600_vram_scratch_fini(rdev);
> radeon_gem_fini(rdev);
> radeon_fence_driver_fini(rdev);
> - radeon_agp_fini(rdev);
> radeon_bo_fini(rdev);
> radeon_atombios_fini(rdev);
> kfree(rdev->bios);
>
--
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Maxfeldstr. 5, 90409 Nürnberg, Germany
(HRB 36809, AG Nürnberg)
Geschäftsführer: Felix Imendörffer
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^ permalink raw reply [flat|nested] 81+ messages in thread
* Re: [PATCH 1/3] drm/radeon: remove AGP support
2020-05-12 18:20 ` Thomas Zimmermann
(?)
@ 2020-05-12 18:29 ` Alex Deucher
-1 siblings, 0 replies; 81+ messages in thread
From: Alex Deucher @ 2020-05-12 18:29 UTC (permalink / raw)
To: Thomas Zimmermann
Cc: Christian König, amd-gfx list, Maling list - DRI developers,
nouveau
On Tue, May 12, 2020 at 2:20 PM Thomas Zimmermann <tzimmermann@suse.de> wrote:
>
> Hi Christian
>
> Am 11.05.20 um 19:17 schrieb Christian König:
> > AGP is deprecated for 10+ years now and not used any more on modern hardware.
> >
> > Old hardware should continue to work in PCI mode.
> >
> > Signed-off-by: Christian König <christian.koenig@amd.com>
> > ---
> > drivers/gpu/drm/radeon/Makefile | 4 +-
> > drivers/gpu/drm/radeon/evergreen.c | 7 -
> > drivers/gpu/drm/radeon/r100.c | 10 +-
> > drivers/gpu/drm/radeon/r300.c | 9 -
> > drivers/gpu/drm/radeon/r420.c | 9 -
> > drivers/gpu/drm/radeon/r520.c | 8 -
> > drivers/gpu/drm/radeon/r600.c | 6 -
> > drivers/gpu/drm/radeon/radeon.h | 11 -
> > drivers/gpu/drm/radeon/radeon_agp.c | 290 -------------------------
> > drivers/gpu/drm/radeon/radeon_device.c | 23 +-
> > drivers/gpu/drm/radeon/radeon_drv.c | 9 -
>
> In radeon_drv.c, the field drm_device.agp is still being initialized in
> radeon_pci_probe() and cleaned up in radeon_driver_unload_kms(). Is this
> intentional?
>
> Best regards
> Thomas
>
> > drivers/gpu/drm/radeon/radeon_ttm.c | 39 ----
> > drivers/gpu/drm/radeon/rv515.c | 9 -
> > drivers/gpu/drm/radeon/rv770.c | 7 -
> > 14 files changed, 4 insertions(+), 437 deletions(-)
> > delete mode 100644 drivers/gpu/drm/radeon/radeon_agp.c
> >
> > diff --git a/drivers/gpu/drm/radeon/Makefile b/drivers/gpu/drm/radeon/Makefile
> > index c693b2ca0329..77429cfd303e 100644
> > --- a/drivers/gpu/drm/radeon/Makefile
> > +++ b/drivers/gpu/drm/radeon/Makefile
> > @@ -61,8 +61,8 @@ radeon-y := radeon_drv.o
> >
> > # add KMS driver
> > radeon-y += radeon_device.o radeon_asic.o radeon_kms.o \
> > - radeon_atombios.o radeon_agp.o atombios_crtc.o radeon_combios.o \
> > - atom.o radeon_fence.o radeon_ttm.o radeon_object.o radeon_gart.o \
> > + radeon_atombios.o atombios_crtc.o radeon_combios.o atom.o \
> > + radeon_fence.o radeon_ttm.o radeon_object.o radeon_gart.o \
> > radeon_legacy_crtc.o radeon_legacy_encoders.o radeon_connectors.o \
> > radeon_encoders.o radeon_display.o radeon_cursor.o radeon_i2c.o \
> > radeon_clocks.o radeon_fb.o radeon_gem.o radeon_ring.o radeon_irq_kms.o \
> > diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c
> > index 14d90dc376e7..66b3d9a2c6dd 100644
> > --- a/drivers/gpu/drm/radeon/evergreen.c
> > +++ b/drivers/gpu/drm/radeon/evergreen.c
> > @@ -5216,12 +5216,6 @@ int evergreen_init(struct radeon_device *rdev)
> > r = radeon_fence_driver_init(rdev);
> > if (r)
> > return r;
> > - /* initialize AGP */
> > - if (rdev->flags & RADEON_IS_AGP) {
> > - r = radeon_agp_init(rdev);
> > - if (r)
> > - radeon_agp_disable(rdev);
> > - }
> > /* initialize memory controller */
> > r = evergreen_mc_init(rdev);
> > if (r)
> > @@ -5315,7 +5309,6 @@ void evergreen_fini(struct radeon_device *rdev)
> > r600_vram_scratch_fini(rdev);
> > radeon_gem_fini(rdev);
> > radeon_fence_driver_fini(rdev);
> > - radeon_agp_fini(rdev);
> > radeon_bo_fini(rdev);
> > radeon_atombios_fini(rdev);
> > kfree(rdev->bios);
> > diff --git a/drivers/gpu/drm/radeon/r100.c b/drivers/gpu/drm/radeon/r100.c
> > index 24c8db673931..320b1b40a30a 100644
> > --- a/drivers/gpu/drm/radeon/r100.c
> > +++ b/drivers/gpu/drm/radeon/r100.c
> > @@ -3382,7 +3382,7 @@ void r100_bandwidth_update(struct radeon_device *rdev)
> >
> > if (rdev->flags & RADEON_IS_AGP) {
> > fixed20_12 agpmode_ff;
> > - agpmode_ff.full = dfixed_const(radeon_agpmode);
> > + agpmode_ff.full = dfixed_const(0);
> > temp_ff.full = dfixed_const_666(16);
> > sclk_eff_ff.full -= dfixed_mul(agpmode_ff, temp_ff);
> > }
> > @@ -3992,7 +3992,6 @@ void r100_fini(struct radeon_device *rdev)
> > radeon_gem_fini(rdev);
> > if (rdev->flags & RADEON_IS_PCI)
> > r100_pci_gart_fini(rdev);
> > - radeon_agp_fini(rdev);
> > radeon_irq_kms_fini(rdev);
> > radeon_fence_driver_fini(rdev);
> > radeon_bo_fini(rdev);
> > @@ -4068,13 +4067,6 @@ int r100_init(struct radeon_device *rdev)
> > r100_errata(rdev);
> > /* Initialize clocks */
> > radeon_get_clock_info(rdev->ddev);
> > - /* initialize AGP */
> > - if (rdev->flags & RADEON_IS_AGP) {
> > - r = radeon_agp_init(rdev);
> > - if (r) {
> > - radeon_agp_disable(rdev);
> > - }
> > - }
> > /* initialize VRAM */
> > r100_mc_init(rdev);
> > /* Fence driver */
> > diff --git a/drivers/gpu/drm/radeon/r300.c b/drivers/gpu/drm/radeon/r300.c
> > index 3b7ead5be5bf..afd688629cf9 100644
> > --- a/drivers/gpu/drm/radeon/r300.c
> > +++ b/drivers/gpu/drm/radeon/r300.c
> > @@ -1498,7 +1498,6 @@ void r300_fini(struct radeon_device *rdev)
> > rv370_pcie_gart_fini(rdev);
> > if (rdev->flags & RADEON_IS_PCI)
> > r100_pci_gart_fini(rdev);
> > - radeon_agp_fini(rdev);
> > radeon_irq_kms_fini(rdev);
> > radeon_fence_driver_fini(rdev);
> > radeon_bo_fini(rdev);
> > @@ -1547,13 +1546,6 @@ int r300_init(struct radeon_device *rdev)
> > r300_errata(rdev);
> > /* Initialize clocks */
> > radeon_get_clock_info(rdev->ddev);
> > - /* initialize AGP */
> > - if (rdev->flags & RADEON_IS_AGP) {
> > - r = radeon_agp_init(rdev);
> > - if (r) {
> > - radeon_agp_disable(rdev);
> > - }
> > - }
> > /* initialize memory controller */
> > r300_mc_init(rdev);
> > /* Fence driver */
> > @@ -1592,7 +1584,6 @@ int r300_init(struct radeon_device *rdev)
> > rv370_pcie_gart_fini(rdev);
> > if (rdev->flags & RADEON_IS_PCI)
> > r100_pci_gart_fini(rdev);
> > - radeon_agp_fini(rdev);
> > rdev->accel_working = false;
> > }
> > return 0;
> > diff --git a/drivers/gpu/drm/radeon/r420.c b/drivers/gpu/drm/radeon/r420.c
> > index 1d4c04e0a449..3cb337dacd56 100644
> > --- a/drivers/gpu/drm/radeon/r420.c
> > +++ b/drivers/gpu/drm/radeon/r420.c
> > @@ -366,7 +366,6 @@ void r420_fini(struct radeon_device *rdev)
> > rv370_pcie_gart_fini(rdev);
> > if (rdev->flags & RADEON_IS_PCI)
> > r100_pci_gart_fini(rdev);
> > - radeon_agp_fini(rdev);
> > radeon_irq_kms_fini(rdev);
> > radeon_fence_driver_fini(rdev);
> > radeon_bo_fini(rdev);
> > @@ -419,13 +418,6 @@ int r420_init(struct radeon_device *rdev)
> >
> > /* Initialize clocks */
> > radeon_get_clock_info(rdev->ddev);
> > - /* initialize AGP */
> > - if (rdev->flags & RADEON_IS_AGP) {
> > - r = radeon_agp_init(rdev);
> > - if (r) {
> > - radeon_agp_disable(rdev);
> > - }
> > - }
> > /* initialize memory controller */
> > r300_mc_init(rdev);
> > r420_debugfs(rdev);
> > @@ -470,7 +462,6 @@ int r420_init(struct radeon_device *rdev)
> > rv370_pcie_gart_fini(rdev);
> > if (rdev->flags & RADEON_IS_PCI)
> > r100_pci_gart_fini(rdev);
> > - radeon_agp_fini(rdev);
> > rdev->accel_working = false;
> > }
> > return 0;
> > diff --git a/drivers/gpu/drm/radeon/r520.c b/drivers/gpu/drm/radeon/r520.c
> > index fc78e64ae727..76ac87d72406 100644
> > --- a/drivers/gpu/drm/radeon/r520.c
> > +++ b/drivers/gpu/drm/radeon/r520.c
> > @@ -288,13 +288,6 @@ int r520_init(struct radeon_device *rdev)
> > }
> > /* Initialize clocks */
> > radeon_get_clock_info(rdev->ddev);
> > - /* initialize AGP */
> > - if (rdev->flags & RADEON_IS_AGP) {
> > - r = radeon_agp_init(rdev);
> > - if (r) {
> > - radeon_agp_disable(rdev);
> > - }
> > - }
> > /* initialize memory controller */
> > r520_mc_init(rdev);
> > rv515_debugfs(rdev);
> > @@ -324,7 +317,6 @@ int r520_init(struct radeon_device *rdev)
> > radeon_ib_pool_fini(rdev);
> > radeon_irq_kms_fini(rdev);
> > rv370_pcie_gart_fini(rdev);
> > - radeon_agp_fini(rdev);
> > rdev->accel_working = false;
> > }
> > return 0;
> > diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c
> > index d9a33ca768f3..4a5ac15893c2 100644
> > --- a/drivers/gpu/drm/radeon/r600.c
> > +++ b/drivers/gpu/drm/radeon/r600.c
> > @@ -3286,11 +3286,6 @@ int r600_init(struct radeon_device *rdev)
> > r = radeon_fence_driver_init(rdev);
> > if (r)
> > return r;
> > - if (rdev->flags & RADEON_IS_AGP) {
> > - r = radeon_agp_init(rdev);
> > - if (r)
> > - radeon_agp_disable(rdev);
> > - }
> > r = r600_mc_init(rdev);
> > if (r)
> > return r;
> > @@ -3353,7 +3348,6 @@ void r600_fini(struct radeon_device *rdev)
> > radeon_irq_kms_fini(rdev);
> > r600_pcie_gart_fini(rdev);
> > r600_vram_scratch_fini(rdev);
> > - radeon_agp_fini(rdev);
> > radeon_gem_fini(rdev);
> > radeon_fence_driver_fini(rdev);
> > radeon_bo_fini(rdev);
> > diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h
> > index 30e32adc1fc6..377e1403b134 100644
> > --- a/drivers/gpu/drm/radeon/radeon.h
> > +++ b/drivers/gpu/drm/radeon/radeon.h
> > @@ -91,7 +91,6 @@ extern int radeon_no_wb;
> > extern int radeon_modeset;
> > extern int radeon_dynclks;
> > extern int radeon_r4xx_atom;
> > -extern int radeon_agpmode;
> > extern int radeon_vram_limit;
> > extern int radeon_gart_size;
> > extern int radeon_benchmarking;
> > @@ -1116,16 +1115,6 @@ typedef int (*radeon_packet0_check_t)(struct radeon_cs_parser *p,
> > typedef int (*radeon_packet3_check_t)(struct radeon_cs_parser *p,
> > struct radeon_cs_packet *pkt);
> >
> > -
> > -/*
> > - * AGP
> > - */
> > -int radeon_agp_init(struct radeon_device *rdev);
> > -void radeon_agp_resume(struct radeon_device *rdev);
> > -void radeon_agp_suspend(struct radeon_device *rdev);
> > -void radeon_agp_fini(struct radeon_device *rdev);
> > -
> > -
> > /*
> > * Writeback
> > */
> > diff --git a/drivers/gpu/drm/radeon/radeon_agp.c b/drivers/gpu/drm/radeon/radeon_agp.c
> > deleted file mode 100644
> > index 0aca7bdf54c7..000000000000
> > --- a/drivers/gpu/drm/radeon/radeon_agp.c
> > +++ /dev/null
> > @@ -1,290 +0,0 @@
> > -/*
> > - * Copyright 2008 Red Hat Inc.
> > - * Copyright 2009 Jerome Glisse.
> > - *
> > - * Permission is hereby granted, free of charge, to any person obtaining a
> > - * copy of this software and associated documentation files (the "Software"),
> > - * to deal in the Software without restriction, including without limitation
> > - * the rights to use, copy, modify, merge, publish, distribute, sublicense,
> > - * and/or sell copies of the Software, and to permit persons to whom the
> > - * Software is furnished to do so, subject to the following conditions:
> > - *
> > - * The above copyright notice and this permission notice shall be included in
> > - * all copies or substantial portions of the Software.
> > - *
> > - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
> > - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
> > - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
> > - * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
> > - * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
> > - * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
> > - * OTHER DEALINGS IN THE SOFTWARE.
> > - *
> > - * Authors:
> > - * Dave Airlie
> > - * Jerome Glisse <glisse@freedesktop.org>
> > - */
> > -
> > -#include <linux/pci.h>
> > -
> > -#include <drm/drm_agpsupport.h>
> > -#include <drm/drm_device.h>
> > -#include <drm/radeon_drm.h>
> > -
> > -#include "radeon.h"
> > -
> > -#if IS_ENABLED(CONFIG_AGP)
> > -
> > -struct radeon_agpmode_quirk {
> > - u32 hostbridge_vendor;
> > - u32 hostbridge_device;
> > - u32 chip_vendor;
> > - u32 chip_device;
> > - u32 subsys_vendor;
> > - u32 subsys_device;
> > - u32 default_mode;
> > -};
> > -
> > -static struct radeon_agpmode_quirk radeon_agpmode_quirk_list[] = {
> > - /* Intel E7505 Memory Controller Hub / RV350 AR [Radeon 9600XT] Needs AGPMode 4 (deb #515326) */
> > - { PCI_VENDOR_ID_INTEL, 0x2550, PCI_VENDOR_ID_ATI, 0x4152, 0x1458, 0x4038, 4},
> > - /* Intel 82865G/PE/P DRAM Controller/Host-Hub / Mobility 9800 Needs AGPMode 4 (deb #462590) */
> > - { PCI_VENDOR_ID_INTEL, 0x2570, PCI_VENDOR_ID_ATI, 0x4a4e, PCI_VENDOR_ID_DELL, 0x5106, 4},
> > - /* Intel 82865G/PE/P DRAM Controller/Host-Hub / RV280 [Radeon 9200 SE] Needs AGPMode 4 (lp #300304) */
> > - { PCI_VENDOR_ID_INTEL, 0x2570, PCI_VENDOR_ID_ATI, 0x5964,
> > - 0x148c, 0x2073, 4},
> > - /* Intel 82855PM Processor to I/O Controller / Mobility M6 LY Needs AGPMode 1 (deb #467235) */
> > - { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4c59,
> > - PCI_VENDOR_ID_IBM, 0x052f, 1},
> > - /* Intel 82855PM host bridge / Mobility 9600 M10 RV350 Needs AGPMode 1 (lp #195051) */
> > - { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4e50,
> > - PCI_VENDOR_ID_IBM, 0x0550, 1},
> > - /* Intel 82855PM host bridge / RV250/M9 GL [Mobility FireGL 9000/Radeon 9000] needs AGPMode 1 (Thinkpad T40p) */
> > - { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4c66,
> > - PCI_VENDOR_ID_IBM, 0x054d, 1},
> > - /* Intel 82855PM host bridge / Mobility M7 needs AGPMode 1 */
> > - { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4c57,
> > - PCI_VENDOR_ID_IBM, 0x0530, 1},
> > - /* Intel 82855PM host bridge / FireGL Mobility T2 RV350 Needs AGPMode 2 (fdo #20647) */
> > - { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4e54,
> > - PCI_VENDOR_ID_IBM, 0x054f, 2},
> > - /* Intel 82855PM host bridge / Mobility M9+ / VaioPCG-V505DX Needs AGPMode 2 (fdo #17928) */
> > - { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x5c61,
> > - PCI_VENDOR_ID_SONY, 0x816b, 2},
> > - /* Intel 82855PM Processor to I/O Controller / Mobility M9+ Needs AGPMode 8 (phoronix forum) */
> > - { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x5c61,
> > - PCI_VENDOR_ID_SONY, 0x8195, 8},
> > - /* Intel 82830 830 Chipset Host Bridge / Mobility M6 LY Needs AGPMode 2 (fdo #17360)*/
> > - { PCI_VENDOR_ID_INTEL, 0x3575, PCI_VENDOR_ID_ATI, 0x4c59,
> > - PCI_VENDOR_ID_DELL, 0x00e3, 2},
> > - /* Intel 82852/82855 host bridge / Mobility FireGL 9000 RV250 Needs AGPMode 1 (lp #296617) */
> > - { PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4c66,
> > - PCI_VENDOR_ID_DELL, 0x0149, 1},
> > - /* Intel 82855PM host bridge / Mobility FireGL 9000 RV250 Needs AGPMode 1 for suspend/resume */
> > - { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4c66,
> > - PCI_VENDOR_ID_IBM, 0x0531, 1},
> > - /* Intel 82852/82855 host bridge / Mobility 9600 M10 RV350 Needs AGPMode 1 (deb #467460) */
> > - { PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4e50,
> > - 0x1025, 0x0061, 1},
> > - /* Intel 82852/82855 host bridge / Mobility 9600 M10 RV350 Needs AGPMode 1 (lp #203007) */
> > - { PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4e50,
> > - 0x1025, 0x0064, 1},
> > - /* Intel 82852/82855 host bridge / Mobility 9600 M10 RV350 Needs AGPMode 1 (lp #141551) */
> > - { PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4e50,
> > - PCI_VENDOR_ID_ASUSTEK, 0x1942, 1},
> > - /* Intel 82852/82855 host bridge / Mobility 9600/9700 Needs AGPMode 1 (deb #510208) */
> > - { PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4e50,
> > - 0x10cf, 0x127f, 1},
> > - /* ASRock K7VT4A+ AGP 8x / ATI Radeon 9250 AGP Needs AGPMode 4 (lp #133192) */
> > - { 0x1849, 0x3189, PCI_VENDOR_ID_ATI, 0x5960,
> > - 0x1787, 0x5960, 4},
> > - /* VIA K8M800 Host Bridge / RV280 [Radeon 9200 PRO] Needs AGPMode 4 (fdo #12544) */
> > - { PCI_VENDOR_ID_VIA, 0x0204, PCI_VENDOR_ID_ATI, 0x5960,
> > - 0x17af, 0x2020, 4},
> > - /* VIA KT880 Host Bridge / RV350 [Radeon 9550] Needs AGPMode 4 (fdo #19981) */
> > - { PCI_VENDOR_ID_VIA, 0x0269, PCI_VENDOR_ID_ATI, 0x4153,
> > - PCI_VENDOR_ID_ASUSTEK, 0x003c, 4},
> > - /* VIA VT8363 Host Bridge / R200 QL [Radeon 8500] Needs AGPMode 2 (lp #141551) */
> > - { PCI_VENDOR_ID_VIA, 0x0305, PCI_VENDOR_ID_ATI, 0x514c,
> > - PCI_VENDOR_ID_ATI, 0x013a, 2},
> > - /* VIA VT82C693A Host Bridge / RV280 [Radeon 9200 PRO] Needs AGPMode 2 (deb #515512) */
> > - { PCI_VENDOR_ID_VIA, 0x0691, PCI_VENDOR_ID_ATI, 0x5960,
> > - PCI_VENDOR_ID_ASUSTEK, 0x004c, 2},
> > - /* VIA VT82C693A Host Bridge / RV280 [Radeon 9200 PRO] Needs AGPMode 2 */
> > - { PCI_VENDOR_ID_VIA, 0x0691, PCI_VENDOR_ID_ATI, 0x5960,
> > - PCI_VENDOR_ID_ASUSTEK, 0x0054, 2},
> > - /* VIA VT8377 Host Bridge / R200 QM [Radeon 9100] Needs AGPMode 4 (deb #461144) */
> > - { PCI_VENDOR_ID_VIA, 0x3189, PCI_VENDOR_ID_ATI, 0x514d,
> > - 0x174b, 0x7149, 4},
> > - /* VIA VT8377 Host Bridge / RV280 [Radeon 9200 PRO] Needs AGPMode 4 (lp #312693) */
> > - { PCI_VENDOR_ID_VIA, 0x3189, PCI_VENDOR_ID_ATI, 0x5960,
> > - 0x1462, 0x0380, 4},
> > - /* VIA VT8377 Host Bridge / RV280 Needs AGPMode 4 (ati ML) */
> > - { PCI_VENDOR_ID_VIA, 0x3189, PCI_VENDOR_ID_ATI, 0x5964,
> > - 0x148c, 0x2073, 4},
> > - /* ATI Host Bridge / RV280 [M9+] Needs AGPMode 1 (phoronix forum) */
> > - { PCI_VENDOR_ID_ATI, 0xcbb2, PCI_VENDOR_ID_ATI, 0x5c61,
> > - PCI_VENDOR_ID_SONY, 0x8175, 1},
> > - { 0, 0, 0, 0, 0, 0, 0 },
> > -};
> > -#endif
> > -
> > -int radeon_agp_init(struct radeon_device *rdev)
> > -{
> > -#if IS_ENABLED(CONFIG_AGP)
> > - struct radeon_agpmode_quirk *p = radeon_agpmode_quirk_list;
> > - struct drm_agp_mode mode;
> > - struct drm_agp_info info;
> > - uint32_t agp_status;
> > - int default_mode;
> > - bool is_v3;
> > - int ret;
> > -
> > - /* Acquire AGP. */
> > - ret = drm_agp_acquire(rdev->ddev);
> > - if (ret) {
> > - DRM_ERROR("Unable to acquire AGP: %d\n", ret);
> > - return ret;
> > - }
> > -
> > - ret = drm_agp_info(rdev->ddev, &info);
> > - if (ret) {
> > - drm_agp_release(rdev->ddev);
> > - DRM_ERROR("Unable to get AGP info: %d\n", ret);
> > - return ret;
> > - }
> > -
> > - if (rdev->ddev->agp->agp_info.aper_size < 32) {
> > - drm_agp_release(rdev->ddev);
> > - dev_warn(rdev->dev, "AGP aperture too small (%zuM) "
> > - "need at least 32M, disabling AGP\n",
> > - rdev->ddev->agp->agp_info.aper_size);
> > - return -EINVAL;
> > - }
> > -
> > - mode.mode = info.mode;
> > - /* chips with the agp to pcie bridge don't have the AGP_STATUS register
> > - * Just use the whatever mode the host sets up.
> > - */
> > - if (rdev->family <= CHIP_RV350)
> > - agp_status = (RREG32(RADEON_AGP_STATUS) | RADEON_AGPv3_MODE) & mode.mode;
> > - else
> > - agp_status = mode.mode;
> > - is_v3 = !!(agp_status & RADEON_AGPv3_MODE);
> > -
> > - if (is_v3) {
> > - default_mode = (agp_status & RADEON_AGPv3_8X_MODE) ? 8 : 4;
> > - } else {
> > - if (agp_status & RADEON_AGP_4X_MODE) {
> > - default_mode = 4;
> > - } else if (agp_status & RADEON_AGP_2X_MODE) {
> > - default_mode = 2;
> > - } else {
> > - default_mode = 1;
> > - }
> > - }
> > -
> > - /* Apply AGPMode Quirks */
> > - while (p && p->chip_device != 0) {
> > - if (info.id_vendor == p->hostbridge_vendor &&
> > - info.id_device == p->hostbridge_device &&
> > - rdev->pdev->vendor == p->chip_vendor &&
> > - rdev->pdev->device == p->chip_device &&
> > - rdev->pdev->subsystem_vendor == p->subsys_vendor &&
> > - rdev->pdev->subsystem_device == p->subsys_device) {
> > - default_mode = p->default_mode;
> > - }
> > - ++p;
> > - }
> > -
> > - if (radeon_agpmode > 0) {
> > - if ((radeon_agpmode < (is_v3 ? 4 : 1)) ||
> > - (radeon_agpmode > (is_v3 ? 8 : 4)) ||
> > - (radeon_agpmode & (radeon_agpmode - 1))) {
> > - DRM_ERROR("Illegal AGP Mode: %d (valid %s), leaving at %d\n",
> > - radeon_agpmode, is_v3 ? "4, 8" : "1, 2, 4",
> > - default_mode);
> > - radeon_agpmode = default_mode;
> > - } else {
> > - DRM_INFO("AGP mode requested: %d\n", radeon_agpmode);
> > - }
> > - } else {
> > - radeon_agpmode = default_mode;
> > - }
> > -
> > - mode.mode &= ~RADEON_AGP_MODE_MASK;
> > - if (is_v3) {
> > - switch (radeon_agpmode) {
> > - case 8:
> > - mode.mode |= RADEON_AGPv3_8X_MODE;
> > - break;
> > - case 4:
> > - default:
> > - mode.mode |= RADEON_AGPv3_4X_MODE;
> > - break;
> > - }
> > - } else {
> > - switch (radeon_agpmode) {
> > - case 4:
> > - mode.mode |= RADEON_AGP_4X_MODE;
> > - break;
> > - case 2:
> > - mode.mode |= RADEON_AGP_2X_MODE;
> > - break;
> > - case 1:
> > - default:
> > - mode.mode |= RADEON_AGP_1X_MODE;
> > - break;
> > - }
> > - }
> > -
> > - mode.mode &= ~RADEON_AGP_FW_MODE; /* disable fw */
> > - ret = drm_agp_enable(rdev->ddev, mode);
> > - if (ret) {
> > - DRM_ERROR("Unable to enable AGP (mode = 0x%lx)\n", mode.mode);
> > - drm_agp_release(rdev->ddev);
> > - return ret;
> > - }
> > -
> > - rdev->mc.agp_base = rdev->ddev->agp->agp_info.aper_base;
>
> The field agp_base seems to be used to program HW registers. Yet I
> cannot find its initialization after applying the patchset. Does some of
> this removed setup code need to be moved elsewhere instead?
I think we should be ok as long as the RADEON_IS_AGP flag is removed
which gets done in radeon_agp_disable.
Alex
>
> Best regards
> Thomas
>
> > - rdev->mc.gtt_size = rdev->ddev->agp->agp_info.aper_size << 20;
> > - rdev->mc.gtt_start = rdev->mc.agp_base;
> > - rdev->mc.gtt_end = rdev->mc.gtt_start + rdev->mc.gtt_size - 1;
> > - dev_info(rdev->dev, "GTT: %lluM 0x%08llX - 0x%08llX\n",
> > - rdev->mc.gtt_size >> 20, rdev->mc.gtt_start, rdev->mc.gtt_end);
> > -
> > - /* workaround some hw issues */
> > - if (rdev->family < CHIP_R200) {
> > - WREG32(RADEON_AGP_CNTL, RREG32(RADEON_AGP_CNTL) | 0x000e0000);
> > - }
> > - return 0;
> > -#else
> > - return 0;
> > -#endif
> > -}
> > -
> > -void radeon_agp_resume(struct radeon_device *rdev)
> > -{
> > -#if IS_ENABLED(CONFIG_AGP)
> > - int r;
> > - if (rdev->flags & RADEON_IS_AGP) {
> > - r = radeon_agp_init(rdev);
> > - if (r)
> > - dev_warn(rdev->dev, "radeon AGP reinit failed\n");
> > - }
> > -#endif
> > -}
> > -
> > -void radeon_agp_fini(struct radeon_device *rdev)
> > -{
> > -#if IS_ENABLED(CONFIG_AGP)
> > - if (rdev->ddev->agp && rdev->ddev->agp->acquired) {
> > - drm_agp_release(rdev->ddev);
> > - }
> > -#endif
> > -}
> > -
> > -void radeon_agp_suspend(struct radeon_device *rdev)
> > -{
> > - radeon_agp_fini(rdev);
> > -}
> > diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c
> > index 266e3cbbd09b..12e5c5d81c47 100644
> > --- a/drivers/gpu/drm/radeon/radeon_device.c
> > +++ b/drivers/gpu/drm/radeon/radeon_device.c
> > @@ -1145,22 +1145,6 @@ static void radeon_check_arguments(struct radeon_device *rdev)
> > }
> > rdev->mc.gtt_size = (uint64_t)radeon_gart_size << 20;
> >
> > - /* AGP mode can only be -1, 1, 2, 4, 8 */
> > - switch (radeon_agpmode) {
> > - case -1:
> > - case 0:
> > - case 1:
> > - case 2:
> > - case 4:
> > - case 8:
> > - break;
> > - default:
> > - dev_warn(rdev->dev, "invalid AGP mode %d (valid mode: "
> > - "-1, 0, 1, 2, 4, 8)\n", radeon_agpmode);
> > - radeon_agpmode = 0;
> > - break;
> > - }
> > -
> > if (!radeon_check_pot_argument(radeon_vm_size)) {
> > dev_warn(rdev->dev, "VM size (%d) must be a power of 2\n",
> > radeon_vm_size);
> > @@ -1348,9 +1332,8 @@ int radeon_device_init(struct radeon_device *rdev,
> > rdev->flags &= ~RADEON_IS_AGP;
> > }
> >
> > - if (rdev->flags & RADEON_IS_AGP && radeon_agpmode == -1) {
> > + if (rdev->flags & RADEON_IS_AGP)
> > radeon_agp_disable(rdev);
> > - }
> >
> > /* Set the internal MC address mask
> > * This is the max address of the GPU's
> > @@ -1636,8 +1619,6 @@ int radeon_suspend_kms(struct drm_device *dev, bool suspend,
> > */
> > radeon_bo_evict_vram(rdev);
> >
> > - radeon_agp_suspend(rdev);
> > -
> > pci_save_state(dev->pdev);
> > if (freeze && rdev->family >= CHIP_CEDAR && !(rdev->flags & RADEON_IS_IGP)) {
> > rdev->asic->asic_reset(rdev, true);
> > @@ -1687,8 +1668,6 @@ int radeon_resume_kms(struct drm_device *dev, bool resume, bool fbcon)
> > return -1;
> > }
> > }
> > - /* resume AGP if in use */
> > - radeon_agp_resume(rdev);
> > radeon_resume(rdev);
> >
> > r = radeon_ib_ring_tests(rdev);
> > diff --git a/drivers/gpu/drm/radeon/radeon_drv.c b/drivers/gpu/drm/radeon/radeon_drv.c
> > index bbb0883e8ce6..62a5dfaf990b 100644
> > --- a/drivers/gpu/drm/radeon/radeon_drv.c
> > +++ b/drivers/gpu/drm/radeon/radeon_drv.c
> > @@ -171,12 +171,6 @@ int radeon_no_wb;
> > int radeon_modeset = -1;
> > int radeon_dynclks = -1;
> > int radeon_r4xx_atom = 0;
> > -#ifdef __powerpc__
> > -/* Default to PCI on PowerPC (fdo #95017) */
> > -int radeon_agpmode = -1;
> > -#else
> > -int radeon_agpmode = 0;
> > -#endif
> > int radeon_vram_limit = 0;
> > int radeon_gart_size = -1; /* auto */
> > int radeon_benchmarking = 0;
> > @@ -220,9 +214,6 @@ module_param_named(r4xx_atom, radeon_r4xx_atom, int, 0444);
> > MODULE_PARM_DESC(vramlimit, "Restrict VRAM for testing, in megabytes");
> > module_param_named(vramlimit, radeon_vram_limit, int, 0600);
> >
> > -MODULE_PARM_DESC(agpmode, "AGP Mode (-1 == PCI)");
> > -module_param_named(agpmode, radeon_agpmode, int, 0444);
> > -
> > MODULE_PARM_DESC(gartsize, "Size of PCIE/IGP gart to setup in megabytes (32, 64, etc., -1 = auto)");
> > module_param_named(gartsize, radeon_gart_size, int, 0600);
> >
> > diff --git a/drivers/gpu/drm/radeon/radeon_ttm.c b/drivers/gpu/drm/radeon/radeon_ttm.c
> > index 5d50c9edbe80..21bb3706c13c 100644
> > --- a/drivers/gpu/drm/radeon/radeon_ttm.c
> > +++ b/drivers/gpu/drm/radeon/radeon_ttm.c
> > @@ -86,20 +86,6 @@ static int radeon_init_mem_type(struct ttm_bo_device *bdev, uint32_t type,
> > man->available_caching = TTM_PL_MASK_CACHING;
> > man->default_caching = TTM_PL_FLAG_CACHED;
> > man->flags = TTM_MEMTYPE_FLAG_MAPPABLE | TTM_MEMTYPE_FLAG_CMA;
> > -#if IS_ENABLED(CONFIG_AGP)
> > - if (rdev->flags & RADEON_IS_AGP) {
> > - if (!rdev->ddev->agp) {
> > - DRM_ERROR("AGP is not enabled for memory type %u\n",
> > - (unsigned)type);
> > - return -EINVAL;
> > - }
> > - if (!rdev->ddev->agp->cant_use_aperture)
> > - man->flags = TTM_MEMTYPE_FLAG_MAPPABLE;
> > - man->available_caching = TTM_PL_FLAG_UNCACHED |
> > - TTM_PL_FLAG_WC;
> > - man->default_caching = TTM_PL_FLAG_WC;
> > - }
> > -#endif
> > break;
> > case TTM_PL_VRAM:
> > /* "On-card" video ram */
> > @@ -411,14 +397,6 @@ static int radeon_ttm_io_mem_reserve(struct ttm_bo_device *bdev, struct ttm_mem_
> > /* system memory */
> > return 0;
> > case TTM_PL_TT:
> > -#if IS_ENABLED(CONFIG_AGP)
> > - if (rdev->flags & RADEON_IS_AGP) {
> > - /* RADEON_IS_AGP is set only if AGP is active */
> > - mem->bus.offset = mem->start << PAGE_SHIFT;
> > - mem->bus.base = rdev->mc.agp_base;
> > - mem->bus.is_iomem = !rdev->ddev->agp->cant_use_aperture;
> > - }
> > -#endif
> > break;
> > case TTM_PL_VRAM:
> > mem->bus.offset = mem->start << PAGE_SHIFT;
> > @@ -631,12 +609,6 @@ static struct ttm_tt *radeon_ttm_tt_create(struct ttm_buffer_object *bo,
> > struct radeon_ttm_tt *gtt;
> >
> > rdev = radeon_get_rdev(bo->bdev);
> > -#if IS_ENABLED(CONFIG_AGP)
> > - if (rdev->flags & RADEON_IS_AGP) {
> > - return ttm_agp_tt_create(bo, rdev->ddev->agp->bridge,
> > - page_flags);
> > - }
> > -#endif
> >
> > gtt = kzalloc(sizeof(struct radeon_ttm_tt), GFP_KERNEL);
> > if (gtt == NULL) {
> > @@ -683,11 +655,6 @@ static int radeon_ttm_tt_populate(struct ttm_tt *ttm,
> > }
> >
> > rdev = radeon_get_rdev(ttm->bdev);
> > -#if IS_ENABLED(CONFIG_AGP)
> > - if (rdev->flags & RADEON_IS_AGP) {
> > - return ttm_agp_tt_populate(ttm, ctx);
> > - }
> > -#endif
> >
> > #ifdef CONFIG_SWIOTLB
> > if (rdev->need_swiotlb && swiotlb_nr_tbl()) {
> > @@ -714,12 +681,6 @@ static void radeon_ttm_tt_unpopulate(struct ttm_tt *ttm)
> > return;
> >
> > rdev = radeon_get_rdev(ttm->bdev);
> > -#if IS_ENABLED(CONFIG_AGP)
> > - if (rdev->flags & RADEON_IS_AGP) {
> > - ttm_agp_tt_unpopulate(ttm);
> > - return;
> > - }
> > -#endif
> >
> > #ifdef CONFIG_SWIOTLB
> > if (rdev->need_swiotlb && swiotlb_nr_tbl()) {
> > diff --git a/drivers/gpu/drm/radeon/rv515.c b/drivers/gpu/drm/radeon/rv515.c
> > index 147e5cf8348d..8a2f16320869 100644
> > --- a/drivers/gpu/drm/radeon/rv515.c
> > +++ b/drivers/gpu/drm/radeon/rv515.c
> > @@ -622,7 +622,6 @@ void rv515_fini(struct radeon_device *rdev)
> > radeon_ib_pool_fini(rdev);
> > radeon_gem_fini(rdev);
> > rv370_pcie_gart_fini(rdev);
> > - radeon_agp_fini(rdev);
> > radeon_irq_kms_fini(rdev);
> > radeon_fence_driver_fini(rdev);
> > radeon_bo_fini(rdev);
> > @@ -667,13 +666,6 @@ int rv515_init(struct radeon_device *rdev)
> > return -EINVAL;
> > /* Initialize clocks */
> > radeon_get_clock_info(rdev->ddev);
> > - /* initialize AGP */
> > - if (rdev->flags & RADEON_IS_AGP) {
> > - r = radeon_agp_init(rdev);
> > - if (r) {
> > - radeon_agp_disable(rdev);
> > - }
> > - }
> > /* initialize memory controller */
> > rv515_mc_init(rdev);
> > rv515_debugfs(rdev);
> > @@ -703,7 +695,6 @@ int rv515_init(struct radeon_device *rdev)
> > radeon_ib_pool_fini(rdev);
> > radeon_irq_kms_fini(rdev);
> > rv370_pcie_gart_fini(rdev);
> > - radeon_agp_fini(rdev);
> > rdev->accel_working = false;
> > }
> > return 0;
> > diff --git a/drivers/gpu/drm/radeon/rv770.c b/drivers/gpu/drm/radeon/rv770.c
> > index 21f653ae1e1b..20bf54266f24 100644
> > --- a/drivers/gpu/drm/radeon/rv770.c
> > +++ b/drivers/gpu/drm/radeon/rv770.c
> > @@ -1943,12 +1943,6 @@ int rv770_init(struct radeon_device *rdev)
> > r = radeon_fence_driver_init(rdev);
> > if (r)
> > return r;
> > - /* initialize AGP */
> > - if (rdev->flags & RADEON_IS_AGP) {
> > - r = radeon_agp_init(rdev);
> > - if (r)
> > - radeon_agp_disable(rdev);
> > - }
> > r = rv770_mc_init(rdev);
> > if (r)
> > return r;
> > @@ -2015,7 +2009,6 @@ void rv770_fini(struct radeon_device *rdev)
> > r600_vram_scratch_fini(rdev);
> > radeon_gem_fini(rdev);
> > radeon_fence_driver_fini(rdev);
> > - radeon_agp_fini(rdev);
> > radeon_bo_fini(rdev);
> > radeon_atombios_fini(rdev);
> > kfree(rdev->bios);
> >
>
> --
> Thomas Zimmermann
> Graphics Driver Developer
> SUSE Software Solutions Germany GmbH
> Maxfeldstr. 5, 90409 Nürnberg, Germany
> (HRB 36809, AG Nürnberg)
> Geschäftsführer: Felix Imendörffer
>
> _______________________________________________
> amd-gfx mailing list
> amd-gfx@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/amd-gfx
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^ permalink raw reply [flat|nested] 81+ messages in thread
* Re: [PATCH 1/3] drm/radeon: remove AGP support
@ 2020-05-12 18:29 ` Alex Deucher
0 siblings, 0 replies; 81+ messages in thread
From: Alex Deucher @ 2020-05-12 18:29 UTC (permalink / raw)
To: Thomas Zimmermann
Cc: Christian König, amd-gfx list, Maling list - DRI developers,
nouveau
On Tue, May 12, 2020 at 2:20 PM Thomas Zimmermann <tzimmermann@suse.de> wrote:
>
> Hi Christian
>
> Am 11.05.20 um 19:17 schrieb Christian König:
> > AGP is deprecated for 10+ years now and not used any more on modern hardware.
> >
> > Old hardware should continue to work in PCI mode.
> >
> > Signed-off-by: Christian König <christian.koenig@amd.com>
> > ---
> > drivers/gpu/drm/radeon/Makefile | 4 +-
> > drivers/gpu/drm/radeon/evergreen.c | 7 -
> > drivers/gpu/drm/radeon/r100.c | 10 +-
> > drivers/gpu/drm/radeon/r300.c | 9 -
> > drivers/gpu/drm/radeon/r420.c | 9 -
> > drivers/gpu/drm/radeon/r520.c | 8 -
> > drivers/gpu/drm/radeon/r600.c | 6 -
> > drivers/gpu/drm/radeon/radeon.h | 11 -
> > drivers/gpu/drm/radeon/radeon_agp.c | 290 -------------------------
> > drivers/gpu/drm/radeon/radeon_device.c | 23 +-
> > drivers/gpu/drm/radeon/radeon_drv.c | 9 -
>
> In radeon_drv.c, the field drm_device.agp is still being initialized in
> radeon_pci_probe() and cleaned up in radeon_driver_unload_kms(). Is this
> intentional?
>
> Best regards
> Thomas
>
> > drivers/gpu/drm/radeon/radeon_ttm.c | 39 ----
> > drivers/gpu/drm/radeon/rv515.c | 9 -
> > drivers/gpu/drm/radeon/rv770.c | 7 -
> > 14 files changed, 4 insertions(+), 437 deletions(-)
> > delete mode 100644 drivers/gpu/drm/radeon/radeon_agp.c
> >
> > diff --git a/drivers/gpu/drm/radeon/Makefile b/drivers/gpu/drm/radeon/Makefile
> > index c693b2ca0329..77429cfd303e 100644
> > --- a/drivers/gpu/drm/radeon/Makefile
> > +++ b/drivers/gpu/drm/radeon/Makefile
> > @@ -61,8 +61,8 @@ radeon-y := radeon_drv.o
> >
> > # add KMS driver
> > radeon-y += radeon_device.o radeon_asic.o radeon_kms.o \
> > - radeon_atombios.o radeon_agp.o atombios_crtc.o radeon_combios.o \
> > - atom.o radeon_fence.o radeon_ttm.o radeon_object.o radeon_gart.o \
> > + radeon_atombios.o atombios_crtc.o radeon_combios.o atom.o \
> > + radeon_fence.o radeon_ttm.o radeon_object.o radeon_gart.o \
> > radeon_legacy_crtc.o radeon_legacy_encoders.o radeon_connectors.o \
> > radeon_encoders.o radeon_display.o radeon_cursor.o radeon_i2c.o \
> > radeon_clocks.o radeon_fb.o radeon_gem.o radeon_ring.o radeon_irq_kms.o \
> > diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c
> > index 14d90dc376e7..66b3d9a2c6dd 100644
> > --- a/drivers/gpu/drm/radeon/evergreen.c
> > +++ b/drivers/gpu/drm/radeon/evergreen.c
> > @@ -5216,12 +5216,6 @@ int evergreen_init(struct radeon_device *rdev)
> > r = radeon_fence_driver_init(rdev);
> > if (r)
> > return r;
> > - /* initialize AGP */
> > - if (rdev->flags & RADEON_IS_AGP) {
> > - r = radeon_agp_init(rdev);
> > - if (r)
> > - radeon_agp_disable(rdev);
> > - }
> > /* initialize memory controller */
> > r = evergreen_mc_init(rdev);
> > if (r)
> > @@ -5315,7 +5309,6 @@ void evergreen_fini(struct radeon_device *rdev)
> > r600_vram_scratch_fini(rdev);
> > radeon_gem_fini(rdev);
> > radeon_fence_driver_fini(rdev);
> > - radeon_agp_fini(rdev);
> > radeon_bo_fini(rdev);
> > radeon_atombios_fini(rdev);
> > kfree(rdev->bios);
> > diff --git a/drivers/gpu/drm/radeon/r100.c b/drivers/gpu/drm/radeon/r100.c
> > index 24c8db673931..320b1b40a30a 100644
> > --- a/drivers/gpu/drm/radeon/r100.c
> > +++ b/drivers/gpu/drm/radeon/r100.c
> > @@ -3382,7 +3382,7 @@ void r100_bandwidth_update(struct radeon_device *rdev)
> >
> > if (rdev->flags & RADEON_IS_AGP) {
> > fixed20_12 agpmode_ff;
> > - agpmode_ff.full = dfixed_const(radeon_agpmode);
> > + agpmode_ff.full = dfixed_const(0);
> > temp_ff.full = dfixed_const_666(16);
> > sclk_eff_ff.full -= dfixed_mul(agpmode_ff, temp_ff);
> > }
> > @@ -3992,7 +3992,6 @@ void r100_fini(struct radeon_device *rdev)
> > radeon_gem_fini(rdev);
> > if (rdev->flags & RADEON_IS_PCI)
> > r100_pci_gart_fini(rdev);
> > - radeon_agp_fini(rdev);
> > radeon_irq_kms_fini(rdev);
> > radeon_fence_driver_fini(rdev);
> > radeon_bo_fini(rdev);
> > @@ -4068,13 +4067,6 @@ int r100_init(struct radeon_device *rdev)
> > r100_errata(rdev);
> > /* Initialize clocks */
> > radeon_get_clock_info(rdev->ddev);
> > - /* initialize AGP */
> > - if (rdev->flags & RADEON_IS_AGP) {
> > - r = radeon_agp_init(rdev);
> > - if (r) {
> > - radeon_agp_disable(rdev);
> > - }
> > - }
> > /* initialize VRAM */
> > r100_mc_init(rdev);
> > /* Fence driver */
> > diff --git a/drivers/gpu/drm/radeon/r300.c b/drivers/gpu/drm/radeon/r300.c
> > index 3b7ead5be5bf..afd688629cf9 100644
> > --- a/drivers/gpu/drm/radeon/r300.c
> > +++ b/drivers/gpu/drm/radeon/r300.c
> > @@ -1498,7 +1498,6 @@ void r300_fini(struct radeon_device *rdev)
> > rv370_pcie_gart_fini(rdev);
> > if (rdev->flags & RADEON_IS_PCI)
> > r100_pci_gart_fini(rdev);
> > - radeon_agp_fini(rdev);
> > radeon_irq_kms_fini(rdev);
> > radeon_fence_driver_fini(rdev);
> > radeon_bo_fini(rdev);
> > @@ -1547,13 +1546,6 @@ int r300_init(struct radeon_device *rdev)
> > r300_errata(rdev);
> > /* Initialize clocks */
> > radeon_get_clock_info(rdev->ddev);
> > - /* initialize AGP */
> > - if (rdev->flags & RADEON_IS_AGP) {
> > - r = radeon_agp_init(rdev);
> > - if (r) {
> > - radeon_agp_disable(rdev);
> > - }
> > - }
> > /* initialize memory controller */
> > r300_mc_init(rdev);
> > /* Fence driver */
> > @@ -1592,7 +1584,6 @@ int r300_init(struct radeon_device *rdev)
> > rv370_pcie_gart_fini(rdev);
> > if (rdev->flags & RADEON_IS_PCI)
> > r100_pci_gart_fini(rdev);
> > - radeon_agp_fini(rdev);
> > rdev->accel_working = false;
> > }
> > return 0;
> > diff --git a/drivers/gpu/drm/radeon/r420.c b/drivers/gpu/drm/radeon/r420.c
> > index 1d4c04e0a449..3cb337dacd56 100644
> > --- a/drivers/gpu/drm/radeon/r420.c
> > +++ b/drivers/gpu/drm/radeon/r420.c
> > @@ -366,7 +366,6 @@ void r420_fini(struct radeon_device *rdev)
> > rv370_pcie_gart_fini(rdev);
> > if (rdev->flags & RADEON_IS_PCI)
> > r100_pci_gart_fini(rdev);
> > - radeon_agp_fini(rdev);
> > radeon_irq_kms_fini(rdev);
> > radeon_fence_driver_fini(rdev);
> > radeon_bo_fini(rdev);
> > @@ -419,13 +418,6 @@ int r420_init(struct radeon_device *rdev)
> >
> > /* Initialize clocks */
> > radeon_get_clock_info(rdev->ddev);
> > - /* initialize AGP */
> > - if (rdev->flags & RADEON_IS_AGP) {
> > - r = radeon_agp_init(rdev);
> > - if (r) {
> > - radeon_agp_disable(rdev);
> > - }
> > - }
> > /* initialize memory controller */
> > r300_mc_init(rdev);
> > r420_debugfs(rdev);
> > @@ -470,7 +462,6 @@ int r420_init(struct radeon_device *rdev)
> > rv370_pcie_gart_fini(rdev);
> > if (rdev->flags & RADEON_IS_PCI)
> > r100_pci_gart_fini(rdev);
> > - radeon_agp_fini(rdev);
> > rdev->accel_working = false;
> > }
> > return 0;
> > diff --git a/drivers/gpu/drm/radeon/r520.c b/drivers/gpu/drm/radeon/r520.c
> > index fc78e64ae727..76ac87d72406 100644
> > --- a/drivers/gpu/drm/radeon/r520.c
> > +++ b/drivers/gpu/drm/radeon/r520.c
> > @@ -288,13 +288,6 @@ int r520_init(struct radeon_device *rdev)
> > }
> > /* Initialize clocks */
> > radeon_get_clock_info(rdev->ddev);
> > - /* initialize AGP */
> > - if (rdev->flags & RADEON_IS_AGP) {
> > - r = radeon_agp_init(rdev);
> > - if (r) {
> > - radeon_agp_disable(rdev);
> > - }
> > - }
> > /* initialize memory controller */
> > r520_mc_init(rdev);
> > rv515_debugfs(rdev);
> > @@ -324,7 +317,6 @@ int r520_init(struct radeon_device *rdev)
> > radeon_ib_pool_fini(rdev);
> > radeon_irq_kms_fini(rdev);
> > rv370_pcie_gart_fini(rdev);
> > - radeon_agp_fini(rdev);
> > rdev->accel_working = false;
> > }
> > return 0;
> > diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c
> > index d9a33ca768f3..4a5ac15893c2 100644
> > --- a/drivers/gpu/drm/radeon/r600.c
> > +++ b/drivers/gpu/drm/radeon/r600.c
> > @@ -3286,11 +3286,6 @@ int r600_init(struct radeon_device *rdev)
> > r = radeon_fence_driver_init(rdev);
> > if (r)
> > return r;
> > - if (rdev->flags & RADEON_IS_AGP) {
> > - r = radeon_agp_init(rdev);
> > - if (r)
> > - radeon_agp_disable(rdev);
> > - }
> > r = r600_mc_init(rdev);
> > if (r)
> > return r;
> > @@ -3353,7 +3348,6 @@ void r600_fini(struct radeon_device *rdev)
> > radeon_irq_kms_fini(rdev);
> > r600_pcie_gart_fini(rdev);
> > r600_vram_scratch_fini(rdev);
> > - radeon_agp_fini(rdev);
> > radeon_gem_fini(rdev);
> > radeon_fence_driver_fini(rdev);
> > radeon_bo_fini(rdev);
> > diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h
> > index 30e32adc1fc6..377e1403b134 100644
> > --- a/drivers/gpu/drm/radeon/radeon.h
> > +++ b/drivers/gpu/drm/radeon/radeon.h
> > @@ -91,7 +91,6 @@ extern int radeon_no_wb;
> > extern int radeon_modeset;
> > extern int radeon_dynclks;
> > extern int radeon_r4xx_atom;
> > -extern int radeon_agpmode;
> > extern int radeon_vram_limit;
> > extern int radeon_gart_size;
> > extern int radeon_benchmarking;
> > @@ -1116,16 +1115,6 @@ typedef int (*radeon_packet0_check_t)(struct radeon_cs_parser *p,
> > typedef int (*radeon_packet3_check_t)(struct radeon_cs_parser *p,
> > struct radeon_cs_packet *pkt);
> >
> > -
> > -/*
> > - * AGP
> > - */
> > -int radeon_agp_init(struct radeon_device *rdev);
> > -void radeon_agp_resume(struct radeon_device *rdev);
> > -void radeon_agp_suspend(struct radeon_device *rdev);
> > -void radeon_agp_fini(struct radeon_device *rdev);
> > -
> > -
> > /*
> > * Writeback
> > */
> > diff --git a/drivers/gpu/drm/radeon/radeon_agp.c b/drivers/gpu/drm/radeon/radeon_agp.c
> > deleted file mode 100644
> > index 0aca7bdf54c7..000000000000
> > --- a/drivers/gpu/drm/radeon/radeon_agp.c
> > +++ /dev/null
> > @@ -1,290 +0,0 @@
> > -/*
> > - * Copyright 2008 Red Hat Inc.
> > - * Copyright 2009 Jerome Glisse.
> > - *
> > - * Permission is hereby granted, free of charge, to any person obtaining a
> > - * copy of this software and associated documentation files (the "Software"),
> > - * to deal in the Software without restriction, including without limitation
> > - * the rights to use, copy, modify, merge, publish, distribute, sublicense,
> > - * and/or sell copies of the Software, and to permit persons to whom the
> > - * Software is furnished to do so, subject to the following conditions:
> > - *
> > - * The above copyright notice and this permission notice shall be included in
> > - * all copies or substantial portions of the Software.
> > - *
> > - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
> > - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
> > - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
> > - * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
> > - * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
> > - * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
> > - * OTHER DEALINGS IN THE SOFTWARE.
> > - *
> > - * Authors:
> > - * Dave Airlie
> > - * Jerome Glisse <glisse@freedesktop.org>
> > - */
> > -
> > -#include <linux/pci.h>
> > -
> > -#include <drm/drm_agpsupport.h>
> > -#include <drm/drm_device.h>
> > -#include <drm/radeon_drm.h>
> > -
> > -#include "radeon.h"
> > -
> > -#if IS_ENABLED(CONFIG_AGP)
> > -
> > -struct radeon_agpmode_quirk {
> > - u32 hostbridge_vendor;
> > - u32 hostbridge_device;
> > - u32 chip_vendor;
> > - u32 chip_device;
> > - u32 subsys_vendor;
> > - u32 subsys_device;
> > - u32 default_mode;
> > -};
> > -
> > -static struct radeon_agpmode_quirk radeon_agpmode_quirk_list[] = {
> > - /* Intel E7505 Memory Controller Hub / RV350 AR [Radeon 9600XT] Needs AGPMode 4 (deb #515326) */
> > - { PCI_VENDOR_ID_INTEL, 0x2550, PCI_VENDOR_ID_ATI, 0x4152, 0x1458, 0x4038, 4},
> > - /* Intel 82865G/PE/P DRAM Controller/Host-Hub / Mobility 9800 Needs AGPMode 4 (deb #462590) */
> > - { PCI_VENDOR_ID_INTEL, 0x2570, PCI_VENDOR_ID_ATI, 0x4a4e, PCI_VENDOR_ID_DELL, 0x5106, 4},
> > - /* Intel 82865G/PE/P DRAM Controller/Host-Hub / RV280 [Radeon 9200 SE] Needs AGPMode 4 (lp #300304) */
> > - { PCI_VENDOR_ID_INTEL, 0x2570, PCI_VENDOR_ID_ATI, 0x5964,
> > - 0x148c, 0x2073, 4},
> > - /* Intel 82855PM Processor to I/O Controller / Mobility M6 LY Needs AGPMode 1 (deb #467235) */
> > - { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4c59,
> > - PCI_VENDOR_ID_IBM, 0x052f, 1},
> > - /* Intel 82855PM host bridge / Mobility 9600 M10 RV350 Needs AGPMode 1 (lp #195051) */
> > - { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4e50,
> > - PCI_VENDOR_ID_IBM, 0x0550, 1},
> > - /* Intel 82855PM host bridge / RV250/M9 GL [Mobility FireGL 9000/Radeon 9000] needs AGPMode 1 (Thinkpad T40p) */
> > - { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4c66,
> > - PCI_VENDOR_ID_IBM, 0x054d, 1},
> > - /* Intel 82855PM host bridge / Mobility M7 needs AGPMode 1 */
> > - { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4c57,
> > - PCI_VENDOR_ID_IBM, 0x0530, 1},
> > - /* Intel 82855PM host bridge / FireGL Mobility T2 RV350 Needs AGPMode 2 (fdo #20647) */
> > - { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4e54,
> > - PCI_VENDOR_ID_IBM, 0x054f, 2},
> > - /* Intel 82855PM host bridge / Mobility M9+ / VaioPCG-V505DX Needs AGPMode 2 (fdo #17928) */
> > - { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x5c61,
> > - PCI_VENDOR_ID_SONY, 0x816b, 2},
> > - /* Intel 82855PM Processor to I/O Controller / Mobility M9+ Needs AGPMode 8 (phoronix forum) */
> > - { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x5c61,
> > - PCI_VENDOR_ID_SONY, 0x8195, 8},
> > - /* Intel 82830 830 Chipset Host Bridge / Mobility M6 LY Needs AGPMode 2 (fdo #17360)*/
> > - { PCI_VENDOR_ID_INTEL, 0x3575, PCI_VENDOR_ID_ATI, 0x4c59,
> > - PCI_VENDOR_ID_DELL, 0x00e3, 2},
> > - /* Intel 82852/82855 host bridge / Mobility FireGL 9000 RV250 Needs AGPMode 1 (lp #296617) */
> > - { PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4c66,
> > - PCI_VENDOR_ID_DELL, 0x0149, 1},
> > - /* Intel 82855PM host bridge / Mobility FireGL 9000 RV250 Needs AGPMode 1 for suspend/resume */
> > - { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4c66,
> > - PCI_VENDOR_ID_IBM, 0x0531, 1},
> > - /* Intel 82852/82855 host bridge / Mobility 9600 M10 RV350 Needs AGPMode 1 (deb #467460) */
> > - { PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4e50,
> > - 0x1025, 0x0061, 1},
> > - /* Intel 82852/82855 host bridge / Mobility 9600 M10 RV350 Needs AGPMode 1 (lp #203007) */
> > - { PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4e50,
> > - 0x1025, 0x0064, 1},
> > - /* Intel 82852/82855 host bridge / Mobility 9600 M10 RV350 Needs AGPMode 1 (lp #141551) */
> > - { PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4e50,
> > - PCI_VENDOR_ID_ASUSTEK, 0x1942, 1},
> > - /* Intel 82852/82855 host bridge / Mobility 9600/9700 Needs AGPMode 1 (deb #510208) */
> > - { PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4e50,
> > - 0x10cf, 0x127f, 1},
> > - /* ASRock K7VT4A+ AGP 8x / ATI Radeon 9250 AGP Needs AGPMode 4 (lp #133192) */
> > - { 0x1849, 0x3189, PCI_VENDOR_ID_ATI, 0x5960,
> > - 0x1787, 0x5960, 4},
> > - /* VIA K8M800 Host Bridge / RV280 [Radeon 9200 PRO] Needs AGPMode 4 (fdo #12544) */
> > - { PCI_VENDOR_ID_VIA, 0x0204, PCI_VENDOR_ID_ATI, 0x5960,
> > - 0x17af, 0x2020, 4},
> > - /* VIA KT880 Host Bridge / RV350 [Radeon 9550] Needs AGPMode 4 (fdo #19981) */
> > - { PCI_VENDOR_ID_VIA, 0x0269, PCI_VENDOR_ID_ATI, 0x4153,
> > - PCI_VENDOR_ID_ASUSTEK, 0x003c, 4},
> > - /* VIA VT8363 Host Bridge / R200 QL [Radeon 8500] Needs AGPMode 2 (lp #141551) */
> > - { PCI_VENDOR_ID_VIA, 0x0305, PCI_VENDOR_ID_ATI, 0x514c,
> > - PCI_VENDOR_ID_ATI, 0x013a, 2},
> > - /* VIA VT82C693A Host Bridge / RV280 [Radeon 9200 PRO] Needs AGPMode 2 (deb #515512) */
> > - { PCI_VENDOR_ID_VIA, 0x0691, PCI_VENDOR_ID_ATI, 0x5960,
> > - PCI_VENDOR_ID_ASUSTEK, 0x004c, 2},
> > - /* VIA VT82C693A Host Bridge / RV280 [Radeon 9200 PRO] Needs AGPMode 2 */
> > - { PCI_VENDOR_ID_VIA, 0x0691, PCI_VENDOR_ID_ATI, 0x5960,
> > - PCI_VENDOR_ID_ASUSTEK, 0x0054, 2},
> > - /* VIA VT8377 Host Bridge / R200 QM [Radeon 9100] Needs AGPMode 4 (deb #461144) */
> > - { PCI_VENDOR_ID_VIA, 0x3189, PCI_VENDOR_ID_ATI, 0x514d,
> > - 0x174b, 0x7149, 4},
> > - /* VIA VT8377 Host Bridge / RV280 [Radeon 9200 PRO] Needs AGPMode 4 (lp #312693) */
> > - { PCI_VENDOR_ID_VIA, 0x3189, PCI_VENDOR_ID_ATI, 0x5960,
> > - 0x1462, 0x0380, 4},
> > - /* VIA VT8377 Host Bridge / RV280 Needs AGPMode 4 (ati ML) */
> > - { PCI_VENDOR_ID_VIA, 0x3189, PCI_VENDOR_ID_ATI, 0x5964,
> > - 0x148c, 0x2073, 4},
> > - /* ATI Host Bridge / RV280 [M9+] Needs AGPMode 1 (phoronix forum) */
> > - { PCI_VENDOR_ID_ATI, 0xcbb2, PCI_VENDOR_ID_ATI, 0x5c61,
> > - PCI_VENDOR_ID_SONY, 0x8175, 1},
> > - { 0, 0, 0, 0, 0, 0, 0 },
> > -};
> > -#endif
> > -
> > -int radeon_agp_init(struct radeon_device *rdev)
> > -{
> > -#if IS_ENABLED(CONFIG_AGP)
> > - struct radeon_agpmode_quirk *p = radeon_agpmode_quirk_list;
> > - struct drm_agp_mode mode;
> > - struct drm_agp_info info;
> > - uint32_t agp_status;
> > - int default_mode;
> > - bool is_v3;
> > - int ret;
> > -
> > - /* Acquire AGP. */
> > - ret = drm_agp_acquire(rdev->ddev);
> > - if (ret) {
> > - DRM_ERROR("Unable to acquire AGP: %d\n", ret);
> > - return ret;
> > - }
> > -
> > - ret = drm_agp_info(rdev->ddev, &info);
> > - if (ret) {
> > - drm_agp_release(rdev->ddev);
> > - DRM_ERROR("Unable to get AGP info: %d\n", ret);
> > - return ret;
> > - }
> > -
> > - if (rdev->ddev->agp->agp_info.aper_size < 32) {
> > - drm_agp_release(rdev->ddev);
> > - dev_warn(rdev->dev, "AGP aperture too small (%zuM) "
> > - "need at least 32M, disabling AGP\n",
> > - rdev->ddev->agp->agp_info.aper_size);
> > - return -EINVAL;
> > - }
> > -
> > - mode.mode = info.mode;
> > - /* chips with the agp to pcie bridge don't have the AGP_STATUS register
> > - * Just use the whatever mode the host sets up.
> > - */
> > - if (rdev->family <= CHIP_RV350)
> > - agp_status = (RREG32(RADEON_AGP_STATUS) | RADEON_AGPv3_MODE) & mode.mode;
> > - else
> > - agp_status = mode.mode;
> > - is_v3 = !!(agp_status & RADEON_AGPv3_MODE);
> > -
> > - if (is_v3) {
> > - default_mode = (agp_status & RADEON_AGPv3_8X_MODE) ? 8 : 4;
> > - } else {
> > - if (agp_status & RADEON_AGP_4X_MODE) {
> > - default_mode = 4;
> > - } else if (agp_status & RADEON_AGP_2X_MODE) {
> > - default_mode = 2;
> > - } else {
> > - default_mode = 1;
> > - }
> > - }
> > -
> > - /* Apply AGPMode Quirks */
> > - while (p && p->chip_device != 0) {
> > - if (info.id_vendor == p->hostbridge_vendor &&
> > - info.id_device == p->hostbridge_device &&
> > - rdev->pdev->vendor == p->chip_vendor &&
> > - rdev->pdev->device == p->chip_device &&
> > - rdev->pdev->subsystem_vendor == p->subsys_vendor &&
> > - rdev->pdev->subsystem_device == p->subsys_device) {
> > - default_mode = p->default_mode;
> > - }
> > - ++p;
> > - }
> > -
> > - if (radeon_agpmode > 0) {
> > - if ((radeon_agpmode < (is_v3 ? 4 : 1)) ||
> > - (radeon_agpmode > (is_v3 ? 8 : 4)) ||
> > - (radeon_agpmode & (radeon_agpmode - 1))) {
> > - DRM_ERROR("Illegal AGP Mode: %d (valid %s), leaving at %d\n",
> > - radeon_agpmode, is_v3 ? "4, 8" : "1, 2, 4",
> > - default_mode);
> > - radeon_agpmode = default_mode;
> > - } else {
> > - DRM_INFO("AGP mode requested: %d\n", radeon_agpmode);
> > - }
> > - } else {
> > - radeon_agpmode = default_mode;
> > - }
> > -
> > - mode.mode &= ~RADEON_AGP_MODE_MASK;
> > - if (is_v3) {
> > - switch (radeon_agpmode) {
> > - case 8:
> > - mode.mode |= RADEON_AGPv3_8X_MODE;
> > - break;
> > - case 4:
> > - default:
> > - mode.mode |= RADEON_AGPv3_4X_MODE;
> > - break;
> > - }
> > - } else {
> > - switch (radeon_agpmode) {
> > - case 4:
> > - mode.mode |= RADEON_AGP_4X_MODE;
> > - break;
> > - case 2:
> > - mode.mode |= RADEON_AGP_2X_MODE;
> > - break;
> > - case 1:
> > - default:
> > - mode.mode |= RADEON_AGP_1X_MODE;
> > - break;
> > - }
> > - }
> > -
> > - mode.mode &= ~RADEON_AGP_FW_MODE; /* disable fw */
> > - ret = drm_agp_enable(rdev->ddev, mode);
> > - if (ret) {
> > - DRM_ERROR("Unable to enable AGP (mode = 0x%lx)\n", mode.mode);
> > - drm_agp_release(rdev->ddev);
> > - return ret;
> > - }
> > -
> > - rdev->mc.agp_base = rdev->ddev->agp->agp_info.aper_base;
>
> The field agp_base seems to be used to program HW registers. Yet I
> cannot find its initialization after applying the patchset. Does some of
> this removed setup code need to be moved elsewhere instead?
I think we should be ok as long as the RADEON_IS_AGP flag is removed
which gets done in radeon_agp_disable.
Alex
>
> Best regards
> Thomas
>
> > - rdev->mc.gtt_size = rdev->ddev->agp->agp_info.aper_size << 20;
> > - rdev->mc.gtt_start = rdev->mc.agp_base;
> > - rdev->mc.gtt_end = rdev->mc.gtt_start + rdev->mc.gtt_size - 1;
> > - dev_info(rdev->dev, "GTT: %lluM 0x%08llX - 0x%08llX\n",
> > - rdev->mc.gtt_size >> 20, rdev->mc.gtt_start, rdev->mc.gtt_end);
> > -
> > - /* workaround some hw issues */
> > - if (rdev->family < CHIP_R200) {
> > - WREG32(RADEON_AGP_CNTL, RREG32(RADEON_AGP_CNTL) | 0x000e0000);
> > - }
> > - return 0;
> > -#else
> > - return 0;
> > -#endif
> > -}
> > -
> > -void radeon_agp_resume(struct radeon_device *rdev)
> > -{
> > -#if IS_ENABLED(CONFIG_AGP)
> > - int r;
> > - if (rdev->flags & RADEON_IS_AGP) {
> > - r = radeon_agp_init(rdev);
> > - if (r)
> > - dev_warn(rdev->dev, "radeon AGP reinit failed\n");
> > - }
> > -#endif
> > -}
> > -
> > -void radeon_agp_fini(struct radeon_device *rdev)
> > -{
> > -#if IS_ENABLED(CONFIG_AGP)
> > - if (rdev->ddev->agp && rdev->ddev->agp->acquired) {
> > - drm_agp_release(rdev->ddev);
> > - }
> > -#endif
> > -}
> > -
> > -void radeon_agp_suspend(struct radeon_device *rdev)
> > -{
> > - radeon_agp_fini(rdev);
> > -}
> > diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c
> > index 266e3cbbd09b..12e5c5d81c47 100644
> > --- a/drivers/gpu/drm/radeon/radeon_device.c
> > +++ b/drivers/gpu/drm/radeon/radeon_device.c
> > @@ -1145,22 +1145,6 @@ static void radeon_check_arguments(struct radeon_device *rdev)
> > }
> > rdev->mc.gtt_size = (uint64_t)radeon_gart_size << 20;
> >
> > - /* AGP mode can only be -1, 1, 2, 4, 8 */
> > - switch (radeon_agpmode) {
> > - case -1:
> > - case 0:
> > - case 1:
> > - case 2:
> > - case 4:
> > - case 8:
> > - break;
> > - default:
> > - dev_warn(rdev->dev, "invalid AGP mode %d (valid mode: "
> > - "-1, 0, 1, 2, 4, 8)\n", radeon_agpmode);
> > - radeon_agpmode = 0;
> > - break;
> > - }
> > -
> > if (!radeon_check_pot_argument(radeon_vm_size)) {
> > dev_warn(rdev->dev, "VM size (%d) must be a power of 2\n",
> > radeon_vm_size);
> > @@ -1348,9 +1332,8 @@ int radeon_device_init(struct radeon_device *rdev,
> > rdev->flags &= ~RADEON_IS_AGP;
> > }
> >
> > - if (rdev->flags & RADEON_IS_AGP && radeon_agpmode == -1) {
> > + if (rdev->flags & RADEON_IS_AGP)
> > radeon_agp_disable(rdev);
> > - }
> >
> > /* Set the internal MC address mask
> > * This is the max address of the GPU's
> > @@ -1636,8 +1619,6 @@ int radeon_suspend_kms(struct drm_device *dev, bool suspend,
> > */
> > radeon_bo_evict_vram(rdev);
> >
> > - radeon_agp_suspend(rdev);
> > -
> > pci_save_state(dev->pdev);
> > if (freeze && rdev->family >= CHIP_CEDAR && !(rdev->flags & RADEON_IS_IGP)) {
> > rdev->asic->asic_reset(rdev, true);
> > @@ -1687,8 +1668,6 @@ int radeon_resume_kms(struct drm_device *dev, bool resume, bool fbcon)
> > return -1;
> > }
> > }
> > - /* resume AGP if in use */
> > - radeon_agp_resume(rdev);
> > radeon_resume(rdev);
> >
> > r = radeon_ib_ring_tests(rdev);
> > diff --git a/drivers/gpu/drm/radeon/radeon_drv.c b/drivers/gpu/drm/radeon/radeon_drv.c
> > index bbb0883e8ce6..62a5dfaf990b 100644
> > --- a/drivers/gpu/drm/radeon/radeon_drv.c
> > +++ b/drivers/gpu/drm/radeon/radeon_drv.c
> > @@ -171,12 +171,6 @@ int radeon_no_wb;
> > int radeon_modeset = -1;
> > int radeon_dynclks = -1;
> > int radeon_r4xx_atom = 0;
> > -#ifdef __powerpc__
> > -/* Default to PCI on PowerPC (fdo #95017) */
> > -int radeon_agpmode = -1;
> > -#else
> > -int radeon_agpmode = 0;
> > -#endif
> > int radeon_vram_limit = 0;
> > int radeon_gart_size = -1; /* auto */
> > int radeon_benchmarking = 0;
> > @@ -220,9 +214,6 @@ module_param_named(r4xx_atom, radeon_r4xx_atom, int, 0444);
> > MODULE_PARM_DESC(vramlimit, "Restrict VRAM for testing, in megabytes");
> > module_param_named(vramlimit, radeon_vram_limit, int, 0600);
> >
> > -MODULE_PARM_DESC(agpmode, "AGP Mode (-1 == PCI)");
> > -module_param_named(agpmode, radeon_agpmode, int, 0444);
> > -
> > MODULE_PARM_DESC(gartsize, "Size of PCIE/IGP gart to setup in megabytes (32, 64, etc., -1 = auto)");
> > module_param_named(gartsize, radeon_gart_size, int, 0600);
> >
> > diff --git a/drivers/gpu/drm/radeon/radeon_ttm.c b/drivers/gpu/drm/radeon/radeon_ttm.c
> > index 5d50c9edbe80..21bb3706c13c 100644
> > --- a/drivers/gpu/drm/radeon/radeon_ttm.c
> > +++ b/drivers/gpu/drm/radeon/radeon_ttm.c
> > @@ -86,20 +86,6 @@ static int radeon_init_mem_type(struct ttm_bo_device *bdev, uint32_t type,
> > man->available_caching = TTM_PL_MASK_CACHING;
> > man->default_caching = TTM_PL_FLAG_CACHED;
> > man->flags = TTM_MEMTYPE_FLAG_MAPPABLE | TTM_MEMTYPE_FLAG_CMA;
> > -#if IS_ENABLED(CONFIG_AGP)
> > - if (rdev->flags & RADEON_IS_AGP) {
> > - if (!rdev->ddev->agp) {
> > - DRM_ERROR("AGP is not enabled for memory type %u\n",
> > - (unsigned)type);
> > - return -EINVAL;
> > - }
> > - if (!rdev->ddev->agp->cant_use_aperture)
> > - man->flags = TTM_MEMTYPE_FLAG_MAPPABLE;
> > - man->available_caching = TTM_PL_FLAG_UNCACHED |
> > - TTM_PL_FLAG_WC;
> > - man->default_caching = TTM_PL_FLAG_WC;
> > - }
> > -#endif
> > break;
> > case TTM_PL_VRAM:
> > /* "On-card" video ram */
> > @@ -411,14 +397,6 @@ static int radeon_ttm_io_mem_reserve(struct ttm_bo_device *bdev, struct ttm_mem_
> > /* system memory */
> > return 0;
> > case TTM_PL_TT:
> > -#if IS_ENABLED(CONFIG_AGP)
> > - if (rdev->flags & RADEON_IS_AGP) {
> > - /* RADEON_IS_AGP is set only if AGP is active */
> > - mem->bus.offset = mem->start << PAGE_SHIFT;
> > - mem->bus.base = rdev->mc.agp_base;
> > - mem->bus.is_iomem = !rdev->ddev->agp->cant_use_aperture;
> > - }
> > -#endif
> > break;
> > case TTM_PL_VRAM:
> > mem->bus.offset = mem->start << PAGE_SHIFT;
> > @@ -631,12 +609,6 @@ static struct ttm_tt *radeon_ttm_tt_create(struct ttm_buffer_object *bo,
> > struct radeon_ttm_tt *gtt;
> >
> > rdev = radeon_get_rdev(bo->bdev);
> > -#if IS_ENABLED(CONFIG_AGP)
> > - if (rdev->flags & RADEON_IS_AGP) {
> > - return ttm_agp_tt_create(bo, rdev->ddev->agp->bridge,
> > - page_flags);
> > - }
> > -#endif
> >
> > gtt = kzalloc(sizeof(struct radeon_ttm_tt), GFP_KERNEL);
> > if (gtt == NULL) {
> > @@ -683,11 +655,6 @@ static int radeon_ttm_tt_populate(struct ttm_tt *ttm,
> > }
> >
> > rdev = radeon_get_rdev(ttm->bdev);
> > -#if IS_ENABLED(CONFIG_AGP)
> > - if (rdev->flags & RADEON_IS_AGP) {
> > - return ttm_agp_tt_populate(ttm, ctx);
> > - }
> > -#endif
> >
> > #ifdef CONFIG_SWIOTLB
> > if (rdev->need_swiotlb && swiotlb_nr_tbl()) {
> > @@ -714,12 +681,6 @@ static void radeon_ttm_tt_unpopulate(struct ttm_tt *ttm)
> > return;
> >
> > rdev = radeon_get_rdev(ttm->bdev);
> > -#if IS_ENABLED(CONFIG_AGP)
> > - if (rdev->flags & RADEON_IS_AGP) {
> > - ttm_agp_tt_unpopulate(ttm);
> > - return;
> > - }
> > -#endif
> >
> > #ifdef CONFIG_SWIOTLB
> > if (rdev->need_swiotlb && swiotlb_nr_tbl()) {
> > diff --git a/drivers/gpu/drm/radeon/rv515.c b/drivers/gpu/drm/radeon/rv515.c
> > index 147e5cf8348d..8a2f16320869 100644
> > --- a/drivers/gpu/drm/radeon/rv515.c
> > +++ b/drivers/gpu/drm/radeon/rv515.c
> > @@ -622,7 +622,6 @@ void rv515_fini(struct radeon_device *rdev)
> > radeon_ib_pool_fini(rdev);
> > radeon_gem_fini(rdev);
> > rv370_pcie_gart_fini(rdev);
> > - radeon_agp_fini(rdev);
> > radeon_irq_kms_fini(rdev);
> > radeon_fence_driver_fini(rdev);
> > radeon_bo_fini(rdev);
> > @@ -667,13 +666,6 @@ int rv515_init(struct radeon_device *rdev)
> > return -EINVAL;
> > /* Initialize clocks */
> > radeon_get_clock_info(rdev->ddev);
> > - /* initialize AGP */
> > - if (rdev->flags & RADEON_IS_AGP) {
> > - r = radeon_agp_init(rdev);
> > - if (r) {
> > - radeon_agp_disable(rdev);
> > - }
> > - }
> > /* initialize memory controller */
> > rv515_mc_init(rdev);
> > rv515_debugfs(rdev);
> > @@ -703,7 +695,6 @@ int rv515_init(struct radeon_device *rdev)
> > radeon_ib_pool_fini(rdev);
> > radeon_irq_kms_fini(rdev);
> > rv370_pcie_gart_fini(rdev);
> > - radeon_agp_fini(rdev);
> > rdev->accel_working = false;
> > }
> > return 0;
> > diff --git a/drivers/gpu/drm/radeon/rv770.c b/drivers/gpu/drm/radeon/rv770.c
> > index 21f653ae1e1b..20bf54266f24 100644
> > --- a/drivers/gpu/drm/radeon/rv770.c
> > +++ b/drivers/gpu/drm/radeon/rv770.c
> > @@ -1943,12 +1943,6 @@ int rv770_init(struct radeon_device *rdev)
> > r = radeon_fence_driver_init(rdev);
> > if (r)
> > return r;
> > - /* initialize AGP */
> > - if (rdev->flags & RADEON_IS_AGP) {
> > - r = radeon_agp_init(rdev);
> > - if (r)
> > - radeon_agp_disable(rdev);
> > - }
> > r = rv770_mc_init(rdev);
> > if (r)
> > return r;
> > @@ -2015,7 +2009,6 @@ void rv770_fini(struct radeon_device *rdev)
> > r600_vram_scratch_fini(rdev);
> > radeon_gem_fini(rdev);
> > radeon_fence_driver_fini(rdev);
> > - radeon_agp_fini(rdev);
> > radeon_bo_fini(rdev);
> > radeon_atombios_fini(rdev);
> > kfree(rdev->bios);
> >
>
> --
> Thomas Zimmermann
> Graphics Driver Developer
> SUSE Software Solutions Germany GmbH
> Maxfeldstr. 5, 90409 Nürnberg, Germany
> (HRB 36809, AG Nürnberg)
> Geschäftsführer: Felix Imendörffer
>
> _______________________________________________
> amd-gfx mailing list
> amd-gfx@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/amd-gfx
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
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^ permalink raw reply [flat|nested] 81+ messages in thread
* Re: [PATCH 1/3] drm/radeon: remove AGP support
@ 2020-05-12 18:29 ` Alex Deucher
0 siblings, 0 replies; 81+ messages in thread
From: Alex Deucher @ 2020-05-12 18:29 UTC (permalink / raw)
To: Thomas Zimmermann
Cc: Christian König, amd-gfx list, Maling list - DRI developers,
nouveau
On Tue, May 12, 2020 at 2:20 PM Thomas Zimmermann <tzimmermann@suse.de> wrote:
>
> Hi Christian
>
> Am 11.05.20 um 19:17 schrieb Christian König:
> > AGP is deprecated for 10+ years now and not used any more on modern hardware.
> >
> > Old hardware should continue to work in PCI mode.
> >
> > Signed-off-by: Christian König <christian.koenig@amd.com>
> > ---
> > drivers/gpu/drm/radeon/Makefile | 4 +-
> > drivers/gpu/drm/radeon/evergreen.c | 7 -
> > drivers/gpu/drm/radeon/r100.c | 10 +-
> > drivers/gpu/drm/radeon/r300.c | 9 -
> > drivers/gpu/drm/radeon/r420.c | 9 -
> > drivers/gpu/drm/radeon/r520.c | 8 -
> > drivers/gpu/drm/radeon/r600.c | 6 -
> > drivers/gpu/drm/radeon/radeon.h | 11 -
> > drivers/gpu/drm/radeon/radeon_agp.c | 290 -------------------------
> > drivers/gpu/drm/radeon/radeon_device.c | 23 +-
> > drivers/gpu/drm/radeon/radeon_drv.c | 9 -
>
> In radeon_drv.c, the field drm_device.agp is still being initialized in
> radeon_pci_probe() and cleaned up in radeon_driver_unload_kms(). Is this
> intentional?
>
> Best regards
> Thomas
>
> > drivers/gpu/drm/radeon/radeon_ttm.c | 39 ----
> > drivers/gpu/drm/radeon/rv515.c | 9 -
> > drivers/gpu/drm/radeon/rv770.c | 7 -
> > 14 files changed, 4 insertions(+), 437 deletions(-)
> > delete mode 100644 drivers/gpu/drm/radeon/radeon_agp.c
> >
> > diff --git a/drivers/gpu/drm/radeon/Makefile b/drivers/gpu/drm/radeon/Makefile
> > index c693b2ca0329..77429cfd303e 100644
> > --- a/drivers/gpu/drm/radeon/Makefile
> > +++ b/drivers/gpu/drm/radeon/Makefile
> > @@ -61,8 +61,8 @@ radeon-y := radeon_drv.o
> >
> > # add KMS driver
> > radeon-y += radeon_device.o radeon_asic.o radeon_kms.o \
> > - radeon_atombios.o radeon_agp.o atombios_crtc.o radeon_combios.o \
> > - atom.o radeon_fence.o radeon_ttm.o radeon_object.o radeon_gart.o \
> > + radeon_atombios.o atombios_crtc.o radeon_combios.o atom.o \
> > + radeon_fence.o radeon_ttm.o radeon_object.o radeon_gart.o \
> > radeon_legacy_crtc.o radeon_legacy_encoders.o radeon_connectors.o \
> > radeon_encoders.o radeon_display.o radeon_cursor.o radeon_i2c.o \
> > radeon_clocks.o radeon_fb.o radeon_gem.o radeon_ring.o radeon_irq_kms.o \
> > diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c
> > index 14d90dc376e7..66b3d9a2c6dd 100644
> > --- a/drivers/gpu/drm/radeon/evergreen.c
> > +++ b/drivers/gpu/drm/radeon/evergreen.c
> > @@ -5216,12 +5216,6 @@ int evergreen_init(struct radeon_device *rdev)
> > r = radeon_fence_driver_init(rdev);
> > if (r)
> > return r;
> > - /* initialize AGP */
> > - if (rdev->flags & RADEON_IS_AGP) {
> > - r = radeon_agp_init(rdev);
> > - if (r)
> > - radeon_agp_disable(rdev);
> > - }
> > /* initialize memory controller */
> > r = evergreen_mc_init(rdev);
> > if (r)
> > @@ -5315,7 +5309,6 @@ void evergreen_fini(struct radeon_device *rdev)
> > r600_vram_scratch_fini(rdev);
> > radeon_gem_fini(rdev);
> > radeon_fence_driver_fini(rdev);
> > - radeon_agp_fini(rdev);
> > radeon_bo_fini(rdev);
> > radeon_atombios_fini(rdev);
> > kfree(rdev->bios);
> > diff --git a/drivers/gpu/drm/radeon/r100.c b/drivers/gpu/drm/radeon/r100.c
> > index 24c8db673931..320b1b40a30a 100644
> > --- a/drivers/gpu/drm/radeon/r100.c
> > +++ b/drivers/gpu/drm/radeon/r100.c
> > @@ -3382,7 +3382,7 @@ void r100_bandwidth_update(struct radeon_device *rdev)
> >
> > if (rdev->flags & RADEON_IS_AGP) {
> > fixed20_12 agpmode_ff;
> > - agpmode_ff.full = dfixed_const(radeon_agpmode);
> > + agpmode_ff.full = dfixed_const(0);
> > temp_ff.full = dfixed_const_666(16);
> > sclk_eff_ff.full -= dfixed_mul(agpmode_ff, temp_ff);
> > }
> > @@ -3992,7 +3992,6 @@ void r100_fini(struct radeon_device *rdev)
> > radeon_gem_fini(rdev);
> > if (rdev->flags & RADEON_IS_PCI)
> > r100_pci_gart_fini(rdev);
> > - radeon_agp_fini(rdev);
> > radeon_irq_kms_fini(rdev);
> > radeon_fence_driver_fini(rdev);
> > radeon_bo_fini(rdev);
> > @@ -4068,13 +4067,6 @@ int r100_init(struct radeon_device *rdev)
> > r100_errata(rdev);
> > /* Initialize clocks */
> > radeon_get_clock_info(rdev->ddev);
> > - /* initialize AGP */
> > - if (rdev->flags & RADEON_IS_AGP) {
> > - r = radeon_agp_init(rdev);
> > - if (r) {
> > - radeon_agp_disable(rdev);
> > - }
> > - }
> > /* initialize VRAM */
> > r100_mc_init(rdev);
> > /* Fence driver */
> > diff --git a/drivers/gpu/drm/radeon/r300.c b/drivers/gpu/drm/radeon/r300.c
> > index 3b7ead5be5bf..afd688629cf9 100644
> > --- a/drivers/gpu/drm/radeon/r300.c
> > +++ b/drivers/gpu/drm/radeon/r300.c
> > @@ -1498,7 +1498,6 @@ void r300_fini(struct radeon_device *rdev)
> > rv370_pcie_gart_fini(rdev);
> > if (rdev->flags & RADEON_IS_PCI)
> > r100_pci_gart_fini(rdev);
> > - radeon_agp_fini(rdev);
> > radeon_irq_kms_fini(rdev);
> > radeon_fence_driver_fini(rdev);
> > radeon_bo_fini(rdev);
> > @@ -1547,13 +1546,6 @@ int r300_init(struct radeon_device *rdev)
> > r300_errata(rdev);
> > /* Initialize clocks */
> > radeon_get_clock_info(rdev->ddev);
> > - /* initialize AGP */
> > - if (rdev->flags & RADEON_IS_AGP) {
> > - r = radeon_agp_init(rdev);
> > - if (r) {
> > - radeon_agp_disable(rdev);
> > - }
> > - }
> > /* initialize memory controller */
> > r300_mc_init(rdev);
> > /* Fence driver */
> > @@ -1592,7 +1584,6 @@ int r300_init(struct radeon_device *rdev)
> > rv370_pcie_gart_fini(rdev);
> > if (rdev->flags & RADEON_IS_PCI)
> > r100_pci_gart_fini(rdev);
> > - radeon_agp_fini(rdev);
> > rdev->accel_working = false;
> > }
> > return 0;
> > diff --git a/drivers/gpu/drm/radeon/r420.c b/drivers/gpu/drm/radeon/r420.c
> > index 1d4c04e0a449..3cb337dacd56 100644
> > --- a/drivers/gpu/drm/radeon/r420.c
> > +++ b/drivers/gpu/drm/radeon/r420.c
> > @@ -366,7 +366,6 @@ void r420_fini(struct radeon_device *rdev)
> > rv370_pcie_gart_fini(rdev);
> > if (rdev->flags & RADEON_IS_PCI)
> > r100_pci_gart_fini(rdev);
> > - radeon_agp_fini(rdev);
> > radeon_irq_kms_fini(rdev);
> > radeon_fence_driver_fini(rdev);
> > radeon_bo_fini(rdev);
> > @@ -419,13 +418,6 @@ int r420_init(struct radeon_device *rdev)
> >
> > /* Initialize clocks */
> > radeon_get_clock_info(rdev->ddev);
> > - /* initialize AGP */
> > - if (rdev->flags & RADEON_IS_AGP) {
> > - r = radeon_agp_init(rdev);
> > - if (r) {
> > - radeon_agp_disable(rdev);
> > - }
> > - }
> > /* initialize memory controller */
> > r300_mc_init(rdev);
> > r420_debugfs(rdev);
> > @@ -470,7 +462,6 @@ int r420_init(struct radeon_device *rdev)
> > rv370_pcie_gart_fini(rdev);
> > if (rdev->flags & RADEON_IS_PCI)
> > r100_pci_gart_fini(rdev);
> > - radeon_agp_fini(rdev);
> > rdev->accel_working = false;
> > }
> > return 0;
> > diff --git a/drivers/gpu/drm/radeon/r520.c b/drivers/gpu/drm/radeon/r520.c
> > index fc78e64ae727..76ac87d72406 100644
> > --- a/drivers/gpu/drm/radeon/r520.c
> > +++ b/drivers/gpu/drm/radeon/r520.c
> > @@ -288,13 +288,6 @@ int r520_init(struct radeon_device *rdev)
> > }
> > /* Initialize clocks */
> > radeon_get_clock_info(rdev->ddev);
> > - /* initialize AGP */
> > - if (rdev->flags & RADEON_IS_AGP) {
> > - r = radeon_agp_init(rdev);
> > - if (r) {
> > - radeon_agp_disable(rdev);
> > - }
> > - }
> > /* initialize memory controller */
> > r520_mc_init(rdev);
> > rv515_debugfs(rdev);
> > @@ -324,7 +317,6 @@ int r520_init(struct radeon_device *rdev)
> > radeon_ib_pool_fini(rdev);
> > radeon_irq_kms_fini(rdev);
> > rv370_pcie_gart_fini(rdev);
> > - radeon_agp_fini(rdev);
> > rdev->accel_working = false;
> > }
> > return 0;
> > diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c
> > index d9a33ca768f3..4a5ac15893c2 100644
> > --- a/drivers/gpu/drm/radeon/r600.c
> > +++ b/drivers/gpu/drm/radeon/r600.c
> > @@ -3286,11 +3286,6 @@ int r600_init(struct radeon_device *rdev)
> > r = radeon_fence_driver_init(rdev);
> > if (r)
> > return r;
> > - if (rdev->flags & RADEON_IS_AGP) {
> > - r = radeon_agp_init(rdev);
> > - if (r)
> > - radeon_agp_disable(rdev);
> > - }
> > r = r600_mc_init(rdev);
> > if (r)
> > return r;
> > @@ -3353,7 +3348,6 @@ void r600_fini(struct radeon_device *rdev)
> > radeon_irq_kms_fini(rdev);
> > r600_pcie_gart_fini(rdev);
> > r600_vram_scratch_fini(rdev);
> > - radeon_agp_fini(rdev);
> > radeon_gem_fini(rdev);
> > radeon_fence_driver_fini(rdev);
> > radeon_bo_fini(rdev);
> > diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h
> > index 30e32adc1fc6..377e1403b134 100644
> > --- a/drivers/gpu/drm/radeon/radeon.h
> > +++ b/drivers/gpu/drm/radeon/radeon.h
> > @@ -91,7 +91,6 @@ extern int radeon_no_wb;
> > extern int radeon_modeset;
> > extern int radeon_dynclks;
> > extern int radeon_r4xx_atom;
> > -extern int radeon_agpmode;
> > extern int radeon_vram_limit;
> > extern int radeon_gart_size;
> > extern int radeon_benchmarking;
> > @@ -1116,16 +1115,6 @@ typedef int (*radeon_packet0_check_t)(struct radeon_cs_parser *p,
> > typedef int (*radeon_packet3_check_t)(struct radeon_cs_parser *p,
> > struct radeon_cs_packet *pkt);
> >
> > -
> > -/*
> > - * AGP
> > - */
> > -int radeon_agp_init(struct radeon_device *rdev);
> > -void radeon_agp_resume(struct radeon_device *rdev);
> > -void radeon_agp_suspend(struct radeon_device *rdev);
> > -void radeon_agp_fini(struct radeon_device *rdev);
> > -
> > -
> > /*
> > * Writeback
> > */
> > diff --git a/drivers/gpu/drm/radeon/radeon_agp.c b/drivers/gpu/drm/radeon/radeon_agp.c
> > deleted file mode 100644
> > index 0aca7bdf54c7..000000000000
> > --- a/drivers/gpu/drm/radeon/radeon_agp.c
> > +++ /dev/null
> > @@ -1,290 +0,0 @@
> > -/*
> > - * Copyright 2008 Red Hat Inc.
> > - * Copyright 2009 Jerome Glisse.
> > - *
> > - * Permission is hereby granted, free of charge, to any person obtaining a
> > - * copy of this software and associated documentation files (the "Software"),
> > - * to deal in the Software without restriction, including without limitation
> > - * the rights to use, copy, modify, merge, publish, distribute, sublicense,
> > - * and/or sell copies of the Software, and to permit persons to whom the
> > - * Software is furnished to do so, subject to the following conditions:
> > - *
> > - * The above copyright notice and this permission notice shall be included in
> > - * all copies or substantial portions of the Software.
> > - *
> > - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
> > - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
> > - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
> > - * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
> > - * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
> > - * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
> > - * OTHER DEALINGS IN THE SOFTWARE.
> > - *
> > - * Authors:
> > - * Dave Airlie
> > - * Jerome Glisse <glisse@freedesktop.org>
> > - */
> > -
> > -#include <linux/pci.h>
> > -
> > -#include <drm/drm_agpsupport.h>
> > -#include <drm/drm_device.h>
> > -#include <drm/radeon_drm.h>
> > -
> > -#include "radeon.h"
> > -
> > -#if IS_ENABLED(CONFIG_AGP)
> > -
> > -struct radeon_agpmode_quirk {
> > - u32 hostbridge_vendor;
> > - u32 hostbridge_device;
> > - u32 chip_vendor;
> > - u32 chip_device;
> > - u32 subsys_vendor;
> > - u32 subsys_device;
> > - u32 default_mode;
> > -};
> > -
> > -static struct radeon_agpmode_quirk radeon_agpmode_quirk_list[] = {
> > - /* Intel E7505 Memory Controller Hub / RV350 AR [Radeon 9600XT] Needs AGPMode 4 (deb #515326) */
> > - { PCI_VENDOR_ID_INTEL, 0x2550, PCI_VENDOR_ID_ATI, 0x4152, 0x1458, 0x4038, 4},
> > - /* Intel 82865G/PE/P DRAM Controller/Host-Hub / Mobility 9800 Needs AGPMode 4 (deb #462590) */
> > - { PCI_VENDOR_ID_INTEL, 0x2570, PCI_VENDOR_ID_ATI, 0x4a4e, PCI_VENDOR_ID_DELL, 0x5106, 4},
> > - /* Intel 82865G/PE/P DRAM Controller/Host-Hub / RV280 [Radeon 9200 SE] Needs AGPMode 4 (lp #300304) */
> > - { PCI_VENDOR_ID_INTEL, 0x2570, PCI_VENDOR_ID_ATI, 0x5964,
> > - 0x148c, 0x2073, 4},
> > - /* Intel 82855PM Processor to I/O Controller / Mobility M6 LY Needs AGPMode 1 (deb #467235) */
> > - { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4c59,
> > - PCI_VENDOR_ID_IBM, 0x052f, 1},
> > - /* Intel 82855PM host bridge / Mobility 9600 M10 RV350 Needs AGPMode 1 (lp #195051) */
> > - { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4e50,
> > - PCI_VENDOR_ID_IBM, 0x0550, 1},
> > - /* Intel 82855PM host bridge / RV250/M9 GL [Mobility FireGL 9000/Radeon 9000] needs AGPMode 1 (Thinkpad T40p) */
> > - { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4c66,
> > - PCI_VENDOR_ID_IBM, 0x054d, 1},
> > - /* Intel 82855PM host bridge / Mobility M7 needs AGPMode 1 */
> > - { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4c57,
> > - PCI_VENDOR_ID_IBM, 0x0530, 1},
> > - /* Intel 82855PM host bridge / FireGL Mobility T2 RV350 Needs AGPMode 2 (fdo #20647) */
> > - { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4e54,
> > - PCI_VENDOR_ID_IBM, 0x054f, 2},
> > - /* Intel 82855PM host bridge / Mobility M9+ / VaioPCG-V505DX Needs AGPMode 2 (fdo #17928) */
> > - { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x5c61,
> > - PCI_VENDOR_ID_SONY, 0x816b, 2},
> > - /* Intel 82855PM Processor to I/O Controller / Mobility M9+ Needs AGPMode 8 (phoronix forum) */
> > - { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x5c61,
> > - PCI_VENDOR_ID_SONY, 0x8195, 8},
> > - /* Intel 82830 830 Chipset Host Bridge / Mobility M6 LY Needs AGPMode 2 (fdo #17360)*/
> > - { PCI_VENDOR_ID_INTEL, 0x3575, PCI_VENDOR_ID_ATI, 0x4c59,
> > - PCI_VENDOR_ID_DELL, 0x00e3, 2},
> > - /* Intel 82852/82855 host bridge / Mobility FireGL 9000 RV250 Needs AGPMode 1 (lp #296617) */
> > - { PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4c66,
> > - PCI_VENDOR_ID_DELL, 0x0149, 1},
> > - /* Intel 82855PM host bridge / Mobility FireGL 9000 RV250 Needs AGPMode 1 for suspend/resume */
> > - { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4c66,
> > - PCI_VENDOR_ID_IBM, 0x0531, 1},
> > - /* Intel 82852/82855 host bridge / Mobility 9600 M10 RV350 Needs AGPMode 1 (deb #467460) */
> > - { PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4e50,
> > - 0x1025, 0x0061, 1},
> > - /* Intel 82852/82855 host bridge / Mobility 9600 M10 RV350 Needs AGPMode 1 (lp #203007) */
> > - { PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4e50,
> > - 0x1025, 0x0064, 1},
> > - /* Intel 82852/82855 host bridge / Mobility 9600 M10 RV350 Needs AGPMode 1 (lp #141551) */
> > - { PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4e50,
> > - PCI_VENDOR_ID_ASUSTEK, 0x1942, 1},
> > - /* Intel 82852/82855 host bridge / Mobility 9600/9700 Needs AGPMode 1 (deb #510208) */
> > - { PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4e50,
> > - 0x10cf, 0x127f, 1},
> > - /* ASRock K7VT4A+ AGP 8x / ATI Radeon 9250 AGP Needs AGPMode 4 (lp #133192) */
> > - { 0x1849, 0x3189, PCI_VENDOR_ID_ATI, 0x5960,
> > - 0x1787, 0x5960, 4},
> > - /* VIA K8M800 Host Bridge / RV280 [Radeon 9200 PRO] Needs AGPMode 4 (fdo #12544) */
> > - { PCI_VENDOR_ID_VIA, 0x0204, PCI_VENDOR_ID_ATI, 0x5960,
> > - 0x17af, 0x2020, 4},
> > - /* VIA KT880 Host Bridge / RV350 [Radeon 9550] Needs AGPMode 4 (fdo #19981) */
> > - { PCI_VENDOR_ID_VIA, 0x0269, PCI_VENDOR_ID_ATI, 0x4153,
> > - PCI_VENDOR_ID_ASUSTEK, 0x003c, 4},
> > - /* VIA VT8363 Host Bridge / R200 QL [Radeon 8500] Needs AGPMode 2 (lp #141551) */
> > - { PCI_VENDOR_ID_VIA, 0x0305, PCI_VENDOR_ID_ATI, 0x514c,
> > - PCI_VENDOR_ID_ATI, 0x013a, 2},
> > - /* VIA VT82C693A Host Bridge / RV280 [Radeon 9200 PRO] Needs AGPMode 2 (deb #515512) */
> > - { PCI_VENDOR_ID_VIA, 0x0691, PCI_VENDOR_ID_ATI, 0x5960,
> > - PCI_VENDOR_ID_ASUSTEK, 0x004c, 2},
> > - /* VIA VT82C693A Host Bridge / RV280 [Radeon 9200 PRO] Needs AGPMode 2 */
> > - { PCI_VENDOR_ID_VIA, 0x0691, PCI_VENDOR_ID_ATI, 0x5960,
> > - PCI_VENDOR_ID_ASUSTEK, 0x0054, 2},
> > - /* VIA VT8377 Host Bridge / R200 QM [Radeon 9100] Needs AGPMode 4 (deb #461144) */
> > - { PCI_VENDOR_ID_VIA, 0x3189, PCI_VENDOR_ID_ATI, 0x514d,
> > - 0x174b, 0x7149, 4},
> > - /* VIA VT8377 Host Bridge / RV280 [Radeon 9200 PRO] Needs AGPMode 4 (lp #312693) */
> > - { PCI_VENDOR_ID_VIA, 0x3189, PCI_VENDOR_ID_ATI, 0x5960,
> > - 0x1462, 0x0380, 4},
> > - /* VIA VT8377 Host Bridge / RV280 Needs AGPMode 4 (ati ML) */
> > - { PCI_VENDOR_ID_VIA, 0x3189, PCI_VENDOR_ID_ATI, 0x5964,
> > - 0x148c, 0x2073, 4},
> > - /* ATI Host Bridge / RV280 [M9+] Needs AGPMode 1 (phoronix forum) */
> > - { PCI_VENDOR_ID_ATI, 0xcbb2, PCI_VENDOR_ID_ATI, 0x5c61,
> > - PCI_VENDOR_ID_SONY, 0x8175, 1},
> > - { 0, 0, 0, 0, 0, 0, 0 },
> > -};
> > -#endif
> > -
> > -int radeon_agp_init(struct radeon_device *rdev)
> > -{
> > -#if IS_ENABLED(CONFIG_AGP)
> > - struct radeon_agpmode_quirk *p = radeon_agpmode_quirk_list;
> > - struct drm_agp_mode mode;
> > - struct drm_agp_info info;
> > - uint32_t agp_status;
> > - int default_mode;
> > - bool is_v3;
> > - int ret;
> > -
> > - /* Acquire AGP. */
> > - ret = drm_agp_acquire(rdev->ddev);
> > - if (ret) {
> > - DRM_ERROR("Unable to acquire AGP: %d\n", ret);
> > - return ret;
> > - }
> > -
> > - ret = drm_agp_info(rdev->ddev, &info);
> > - if (ret) {
> > - drm_agp_release(rdev->ddev);
> > - DRM_ERROR("Unable to get AGP info: %d\n", ret);
> > - return ret;
> > - }
> > -
> > - if (rdev->ddev->agp->agp_info.aper_size < 32) {
> > - drm_agp_release(rdev->ddev);
> > - dev_warn(rdev->dev, "AGP aperture too small (%zuM) "
> > - "need at least 32M, disabling AGP\n",
> > - rdev->ddev->agp->agp_info.aper_size);
> > - return -EINVAL;
> > - }
> > -
> > - mode.mode = info.mode;
> > - /* chips with the agp to pcie bridge don't have the AGP_STATUS register
> > - * Just use the whatever mode the host sets up.
> > - */
> > - if (rdev->family <= CHIP_RV350)
> > - agp_status = (RREG32(RADEON_AGP_STATUS) | RADEON_AGPv3_MODE) & mode.mode;
> > - else
> > - agp_status = mode.mode;
> > - is_v3 = !!(agp_status & RADEON_AGPv3_MODE);
> > -
> > - if (is_v3) {
> > - default_mode = (agp_status & RADEON_AGPv3_8X_MODE) ? 8 : 4;
> > - } else {
> > - if (agp_status & RADEON_AGP_4X_MODE) {
> > - default_mode = 4;
> > - } else if (agp_status & RADEON_AGP_2X_MODE) {
> > - default_mode = 2;
> > - } else {
> > - default_mode = 1;
> > - }
> > - }
> > -
> > - /* Apply AGPMode Quirks */
> > - while (p && p->chip_device != 0) {
> > - if (info.id_vendor == p->hostbridge_vendor &&
> > - info.id_device == p->hostbridge_device &&
> > - rdev->pdev->vendor == p->chip_vendor &&
> > - rdev->pdev->device == p->chip_device &&
> > - rdev->pdev->subsystem_vendor == p->subsys_vendor &&
> > - rdev->pdev->subsystem_device == p->subsys_device) {
> > - default_mode = p->default_mode;
> > - }
> > - ++p;
> > - }
> > -
> > - if (radeon_agpmode > 0) {
> > - if ((radeon_agpmode < (is_v3 ? 4 : 1)) ||
> > - (radeon_agpmode > (is_v3 ? 8 : 4)) ||
> > - (radeon_agpmode & (radeon_agpmode - 1))) {
> > - DRM_ERROR("Illegal AGP Mode: %d (valid %s), leaving at %d\n",
> > - radeon_agpmode, is_v3 ? "4, 8" : "1, 2, 4",
> > - default_mode);
> > - radeon_agpmode = default_mode;
> > - } else {
> > - DRM_INFO("AGP mode requested: %d\n", radeon_agpmode);
> > - }
> > - } else {
> > - radeon_agpmode = default_mode;
> > - }
> > -
> > - mode.mode &= ~RADEON_AGP_MODE_MASK;
> > - if (is_v3) {
> > - switch (radeon_agpmode) {
> > - case 8:
> > - mode.mode |= RADEON_AGPv3_8X_MODE;
> > - break;
> > - case 4:
> > - default:
> > - mode.mode |= RADEON_AGPv3_4X_MODE;
> > - break;
> > - }
> > - } else {
> > - switch (radeon_agpmode) {
> > - case 4:
> > - mode.mode |= RADEON_AGP_4X_MODE;
> > - break;
> > - case 2:
> > - mode.mode |= RADEON_AGP_2X_MODE;
> > - break;
> > - case 1:
> > - default:
> > - mode.mode |= RADEON_AGP_1X_MODE;
> > - break;
> > - }
> > - }
> > -
> > - mode.mode &= ~RADEON_AGP_FW_MODE; /* disable fw */
> > - ret = drm_agp_enable(rdev->ddev, mode);
> > - if (ret) {
> > - DRM_ERROR("Unable to enable AGP (mode = 0x%lx)\n", mode.mode);
> > - drm_agp_release(rdev->ddev);
> > - return ret;
> > - }
> > -
> > - rdev->mc.agp_base = rdev->ddev->agp->agp_info.aper_base;
>
> The field agp_base seems to be used to program HW registers. Yet I
> cannot find its initialization after applying the patchset. Does some of
> this removed setup code need to be moved elsewhere instead?
I think we should be ok as long as the RADEON_IS_AGP flag is removed
which gets done in radeon_agp_disable.
Alex
>
> Best regards
> Thomas
>
> > - rdev->mc.gtt_size = rdev->ddev->agp->agp_info.aper_size << 20;
> > - rdev->mc.gtt_start = rdev->mc.agp_base;
> > - rdev->mc.gtt_end = rdev->mc.gtt_start + rdev->mc.gtt_size - 1;
> > - dev_info(rdev->dev, "GTT: %lluM 0x%08llX - 0x%08llX\n",
> > - rdev->mc.gtt_size >> 20, rdev->mc.gtt_start, rdev->mc.gtt_end);
> > -
> > - /* workaround some hw issues */
> > - if (rdev->family < CHIP_R200) {
> > - WREG32(RADEON_AGP_CNTL, RREG32(RADEON_AGP_CNTL) | 0x000e0000);
> > - }
> > - return 0;
> > -#else
> > - return 0;
> > -#endif
> > -}
> > -
> > -void radeon_agp_resume(struct radeon_device *rdev)
> > -{
> > -#if IS_ENABLED(CONFIG_AGP)
> > - int r;
> > - if (rdev->flags & RADEON_IS_AGP) {
> > - r = radeon_agp_init(rdev);
> > - if (r)
> > - dev_warn(rdev->dev, "radeon AGP reinit failed\n");
> > - }
> > -#endif
> > -}
> > -
> > -void radeon_agp_fini(struct radeon_device *rdev)
> > -{
> > -#if IS_ENABLED(CONFIG_AGP)
> > - if (rdev->ddev->agp && rdev->ddev->agp->acquired) {
> > - drm_agp_release(rdev->ddev);
> > - }
> > -#endif
> > -}
> > -
> > -void radeon_agp_suspend(struct radeon_device *rdev)
> > -{
> > - radeon_agp_fini(rdev);
> > -}
> > diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c
> > index 266e3cbbd09b..12e5c5d81c47 100644
> > --- a/drivers/gpu/drm/radeon/radeon_device.c
> > +++ b/drivers/gpu/drm/radeon/radeon_device.c
> > @@ -1145,22 +1145,6 @@ static void radeon_check_arguments(struct radeon_device *rdev)
> > }
> > rdev->mc.gtt_size = (uint64_t)radeon_gart_size << 20;
> >
> > - /* AGP mode can only be -1, 1, 2, 4, 8 */
> > - switch (radeon_agpmode) {
> > - case -1:
> > - case 0:
> > - case 1:
> > - case 2:
> > - case 4:
> > - case 8:
> > - break;
> > - default:
> > - dev_warn(rdev->dev, "invalid AGP mode %d (valid mode: "
> > - "-1, 0, 1, 2, 4, 8)\n", radeon_agpmode);
> > - radeon_agpmode = 0;
> > - break;
> > - }
> > -
> > if (!radeon_check_pot_argument(radeon_vm_size)) {
> > dev_warn(rdev->dev, "VM size (%d) must be a power of 2\n",
> > radeon_vm_size);
> > @@ -1348,9 +1332,8 @@ int radeon_device_init(struct radeon_device *rdev,
> > rdev->flags &= ~RADEON_IS_AGP;
> > }
> >
> > - if (rdev->flags & RADEON_IS_AGP && radeon_agpmode == -1) {
> > + if (rdev->flags & RADEON_IS_AGP)
> > radeon_agp_disable(rdev);
> > - }
> >
> > /* Set the internal MC address mask
> > * This is the max address of the GPU's
> > @@ -1636,8 +1619,6 @@ int radeon_suspend_kms(struct drm_device *dev, bool suspend,
> > */
> > radeon_bo_evict_vram(rdev);
> >
> > - radeon_agp_suspend(rdev);
> > -
> > pci_save_state(dev->pdev);
> > if (freeze && rdev->family >= CHIP_CEDAR && !(rdev->flags & RADEON_IS_IGP)) {
> > rdev->asic->asic_reset(rdev, true);
> > @@ -1687,8 +1668,6 @@ int radeon_resume_kms(struct drm_device *dev, bool resume, bool fbcon)
> > return -1;
> > }
> > }
> > - /* resume AGP if in use */
> > - radeon_agp_resume(rdev);
> > radeon_resume(rdev);
> >
> > r = radeon_ib_ring_tests(rdev);
> > diff --git a/drivers/gpu/drm/radeon/radeon_drv.c b/drivers/gpu/drm/radeon/radeon_drv.c
> > index bbb0883e8ce6..62a5dfaf990b 100644
> > --- a/drivers/gpu/drm/radeon/radeon_drv.c
> > +++ b/drivers/gpu/drm/radeon/radeon_drv.c
> > @@ -171,12 +171,6 @@ int radeon_no_wb;
> > int radeon_modeset = -1;
> > int radeon_dynclks = -1;
> > int radeon_r4xx_atom = 0;
> > -#ifdef __powerpc__
> > -/* Default to PCI on PowerPC (fdo #95017) */
> > -int radeon_agpmode = -1;
> > -#else
> > -int radeon_agpmode = 0;
> > -#endif
> > int radeon_vram_limit = 0;
> > int radeon_gart_size = -1; /* auto */
> > int radeon_benchmarking = 0;
> > @@ -220,9 +214,6 @@ module_param_named(r4xx_atom, radeon_r4xx_atom, int, 0444);
> > MODULE_PARM_DESC(vramlimit, "Restrict VRAM for testing, in megabytes");
> > module_param_named(vramlimit, radeon_vram_limit, int, 0600);
> >
> > -MODULE_PARM_DESC(agpmode, "AGP Mode (-1 == PCI)");
> > -module_param_named(agpmode, radeon_agpmode, int, 0444);
> > -
> > MODULE_PARM_DESC(gartsize, "Size of PCIE/IGP gart to setup in megabytes (32, 64, etc., -1 = auto)");
> > module_param_named(gartsize, radeon_gart_size, int, 0600);
> >
> > diff --git a/drivers/gpu/drm/radeon/radeon_ttm.c b/drivers/gpu/drm/radeon/radeon_ttm.c
> > index 5d50c9edbe80..21bb3706c13c 100644
> > --- a/drivers/gpu/drm/radeon/radeon_ttm.c
> > +++ b/drivers/gpu/drm/radeon/radeon_ttm.c
> > @@ -86,20 +86,6 @@ static int radeon_init_mem_type(struct ttm_bo_device *bdev, uint32_t type,
> > man->available_caching = TTM_PL_MASK_CACHING;
> > man->default_caching = TTM_PL_FLAG_CACHED;
> > man->flags = TTM_MEMTYPE_FLAG_MAPPABLE | TTM_MEMTYPE_FLAG_CMA;
> > -#if IS_ENABLED(CONFIG_AGP)
> > - if (rdev->flags & RADEON_IS_AGP) {
> > - if (!rdev->ddev->agp) {
> > - DRM_ERROR("AGP is not enabled for memory type %u\n",
> > - (unsigned)type);
> > - return -EINVAL;
> > - }
> > - if (!rdev->ddev->agp->cant_use_aperture)
> > - man->flags = TTM_MEMTYPE_FLAG_MAPPABLE;
> > - man->available_caching = TTM_PL_FLAG_UNCACHED |
> > - TTM_PL_FLAG_WC;
> > - man->default_caching = TTM_PL_FLAG_WC;
> > - }
> > -#endif
> > break;
> > case TTM_PL_VRAM:
> > /* "On-card" video ram */
> > @@ -411,14 +397,6 @@ static int radeon_ttm_io_mem_reserve(struct ttm_bo_device *bdev, struct ttm_mem_
> > /* system memory */
> > return 0;
> > case TTM_PL_TT:
> > -#if IS_ENABLED(CONFIG_AGP)
> > - if (rdev->flags & RADEON_IS_AGP) {
> > - /* RADEON_IS_AGP is set only if AGP is active */
> > - mem->bus.offset = mem->start << PAGE_SHIFT;
> > - mem->bus.base = rdev->mc.agp_base;
> > - mem->bus.is_iomem = !rdev->ddev->agp->cant_use_aperture;
> > - }
> > -#endif
> > break;
> > case TTM_PL_VRAM:
> > mem->bus.offset = mem->start << PAGE_SHIFT;
> > @@ -631,12 +609,6 @@ static struct ttm_tt *radeon_ttm_tt_create(struct ttm_buffer_object *bo,
> > struct radeon_ttm_tt *gtt;
> >
> > rdev = radeon_get_rdev(bo->bdev);
> > -#if IS_ENABLED(CONFIG_AGP)
> > - if (rdev->flags & RADEON_IS_AGP) {
> > - return ttm_agp_tt_create(bo, rdev->ddev->agp->bridge,
> > - page_flags);
> > - }
> > -#endif
> >
> > gtt = kzalloc(sizeof(struct radeon_ttm_tt), GFP_KERNEL);
> > if (gtt == NULL) {
> > @@ -683,11 +655,6 @@ static int radeon_ttm_tt_populate(struct ttm_tt *ttm,
> > }
> >
> > rdev = radeon_get_rdev(ttm->bdev);
> > -#if IS_ENABLED(CONFIG_AGP)
> > - if (rdev->flags & RADEON_IS_AGP) {
> > - return ttm_agp_tt_populate(ttm, ctx);
> > - }
> > -#endif
> >
> > #ifdef CONFIG_SWIOTLB
> > if (rdev->need_swiotlb && swiotlb_nr_tbl()) {
> > @@ -714,12 +681,6 @@ static void radeon_ttm_tt_unpopulate(struct ttm_tt *ttm)
> > return;
> >
> > rdev = radeon_get_rdev(ttm->bdev);
> > -#if IS_ENABLED(CONFIG_AGP)
> > - if (rdev->flags & RADEON_IS_AGP) {
> > - ttm_agp_tt_unpopulate(ttm);
> > - return;
> > - }
> > -#endif
> >
> > #ifdef CONFIG_SWIOTLB
> > if (rdev->need_swiotlb && swiotlb_nr_tbl()) {
> > diff --git a/drivers/gpu/drm/radeon/rv515.c b/drivers/gpu/drm/radeon/rv515.c
> > index 147e5cf8348d..8a2f16320869 100644
> > --- a/drivers/gpu/drm/radeon/rv515.c
> > +++ b/drivers/gpu/drm/radeon/rv515.c
> > @@ -622,7 +622,6 @@ void rv515_fini(struct radeon_device *rdev)
> > radeon_ib_pool_fini(rdev);
> > radeon_gem_fini(rdev);
> > rv370_pcie_gart_fini(rdev);
> > - radeon_agp_fini(rdev);
> > radeon_irq_kms_fini(rdev);
> > radeon_fence_driver_fini(rdev);
> > radeon_bo_fini(rdev);
> > @@ -667,13 +666,6 @@ int rv515_init(struct radeon_device *rdev)
> > return -EINVAL;
> > /* Initialize clocks */
> > radeon_get_clock_info(rdev->ddev);
> > - /* initialize AGP */
> > - if (rdev->flags & RADEON_IS_AGP) {
> > - r = radeon_agp_init(rdev);
> > - if (r) {
> > - radeon_agp_disable(rdev);
> > - }
> > - }
> > /* initialize memory controller */
> > rv515_mc_init(rdev);
> > rv515_debugfs(rdev);
> > @@ -703,7 +695,6 @@ int rv515_init(struct radeon_device *rdev)
> > radeon_ib_pool_fini(rdev);
> > radeon_irq_kms_fini(rdev);
> > rv370_pcie_gart_fini(rdev);
> > - radeon_agp_fini(rdev);
> > rdev->accel_working = false;
> > }
> > return 0;
> > diff --git a/drivers/gpu/drm/radeon/rv770.c b/drivers/gpu/drm/radeon/rv770.c
> > index 21f653ae1e1b..20bf54266f24 100644
> > --- a/drivers/gpu/drm/radeon/rv770.c
> > +++ b/drivers/gpu/drm/radeon/rv770.c
> > @@ -1943,12 +1943,6 @@ int rv770_init(struct radeon_device *rdev)
> > r = radeon_fence_driver_init(rdev);
> > if (r)
> > return r;
> > - /* initialize AGP */
> > - if (rdev->flags & RADEON_IS_AGP) {
> > - r = radeon_agp_init(rdev);
> > - if (r)
> > - radeon_agp_disable(rdev);
> > - }
> > r = rv770_mc_init(rdev);
> > if (r)
> > return r;
> > @@ -2015,7 +2009,6 @@ void rv770_fini(struct radeon_device *rdev)
> > r600_vram_scratch_fini(rdev);
> > radeon_gem_fini(rdev);
> > radeon_fence_driver_fini(rdev);
> > - radeon_agp_fini(rdev);
> > radeon_bo_fini(rdev);
> > radeon_atombios_fini(rdev);
> > kfree(rdev->bios);
> >
>
> --
> Thomas Zimmermann
> Graphics Driver Developer
> SUSE Software Solutions Germany GmbH
> Maxfeldstr. 5, 90409 Nürnberg, Germany
> (HRB 36809, AG Nürnberg)
> Geschäftsführer: Felix Imendörffer
>
> _______________________________________________
> amd-gfx mailing list
> amd-gfx@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/amd-gfx
_______________________________________________
amd-gfx mailing list
amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx
^ permalink raw reply [flat|nested] 81+ messages in thread
* Re: [Nouveau] [RFC] Remove AGP support from Radeon/Nouveau/TTM
2020-05-11 17:17 ` Christian König
(?)
@ 2020-05-12 18:29 ` Thomas Zimmermann
-1 siblings, 0 replies; 81+ messages in thread
From: Thomas Zimmermann @ 2020-05-12 18:29 UTC (permalink / raw)
To: Christian König, dri-devel-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW,
amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW,
nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW
[-- Attachment #1.1.1: Type: text/plain, Size: 1571 bytes --]
Hi
Am 11.05.20 um 19:17 schrieb Christian König:
> Hi guys,
>
> Well let's face it AGP is a total headache to maintain and dead for at least 10+ years.
>
> We have a lot of x86 specific stuff in the architecture independent graphics memory management to get the caching right, abusing the DMA API on multiple occasions, need to distinct between AGP and driver specific page tables etc etc...
>
> So the idea here is to just go ahead and remove the support from Radeon and Nouveau and then drop the necessary code from TTM.
>
> For Radeon this means that we just switch over to the driver specific page tables and everything should more or less continue to work.
>
> For Nouveau I'm not 100% sure, but from the code it of hand looks like we can do it similar to Radeon.
>
> Please comment what you think about this.
There's some AGP support code in the DRM core. Can some of that declared
as legacy?
Specifically, what about these AGP-related ioctl calls? Can they be
declared as legacy? It would appear to me that KMS-based drivers don't
have to manage AGP by themselves. (?)
Best regards
Thomas
>
> Regards,
> Christian.
>
>
> _______________________________________________
> Nouveau mailing list
> Nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
> https://lists.freedesktop.org/mailman/listinfo/nouveau
>
--
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Maxfeldstr. 5, 90409 Nürnberg, Germany
(HRB 36809, AG Nürnberg)
Geschäftsführer: Felix Imendörffer
[-- Attachment #1.2: OpenPGP digital signature --]
[-- Type: application/pgp-signature, Size: 488 bytes --]
[-- Attachment #2: Type: text/plain, Size: 182 bytes --]
_______________________________________________
amd-gfx mailing list
amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx
^ permalink raw reply [flat|nested] 81+ messages in thread
* Re: [Nouveau] [RFC] Remove AGP support from Radeon/Nouveau/TTM
@ 2020-05-12 18:29 ` Thomas Zimmermann
0 siblings, 0 replies; 81+ messages in thread
From: Thomas Zimmermann @ 2020-05-12 18:29 UTC (permalink / raw)
To: Christian König, dri-devel, amd-gfx, nouveau
[-- Attachment #1.1.1: Type: text/plain, Size: 1543 bytes --]
Hi
Am 11.05.20 um 19:17 schrieb Christian König:
> Hi guys,
>
> Well let's face it AGP is a total headache to maintain and dead for at least 10+ years.
>
> We have a lot of x86 specific stuff in the architecture independent graphics memory management to get the caching right, abusing the DMA API on multiple occasions, need to distinct between AGP and driver specific page tables etc etc...
>
> So the idea here is to just go ahead and remove the support from Radeon and Nouveau and then drop the necessary code from TTM.
>
> For Radeon this means that we just switch over to the driver specific page tables and everything should more or less continue to work.
>
> For Nouveau I'm not 100% sure, but from the code it of hand looks like we can do it similar to Radeon.
>
> Please comment what you think about this.
There's some AGP support code in the DRM core. Can some of that declared
as legacy?
Specifically, what about these AGP-related ioctl calls? Can they be
declared as legacy? It would appear to me that KMS-based drivers don't
have to manage AGP by themselves. (?)
Best regards
Thomas
>
> Regards,
> Christian.
>
>
> _______________________________________________
> Nouveau mailing list
> Nouveau@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/nouveau
>
--
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Maxfeldstr. 5, 90409 Nürnberg, Germany
(HRB 36809, AG Nürnberg)
Geschäftsführer: Felix Imendörffer
[-- Attachment #1.2: OpenPGP digital signature --]
[-- Type: application/pgp-signature, Size: 488 bytes --]
[-- Attachment #2: Type: text/plain, Size: 160 bytes --]
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 81+ messages in thread
* Re: [Nouveau] [RFC] Remove AGP support from Radeon/Nouveau/TTM
@ 2020-05-12 18:29 ` Thomas Zimmermann
0 siblings, 0 replies; 81+ messages in thread
From: Thomas Zimmermann @ 2020-05-12 18:29 UTC (permalink / raw)
To: Christian König, dri-devel, amd-gfx, nouveau
[-- Attachment #1.1.1: Type: text/plain, Size: 1543 bytes --]
Hi
Am 11.05.20 um 19:17 schrieb Christian König:
> Hi guys,
>
> Well let's face it AGP is a total headache to maintain and dead for at least 10+ years.
>
> We have a lot of x86 specific stuff in the architecture independent graphics memory management to get the caching right, abusing the DMA API on multiple occasions, need to distinct between AGP and driver specific page tables etc etc...
>
> So the idea here is to just go ahead and remove the support from Radeon and Nouveau and then drop the necessary code from TTM.
>
> For Radeon this means that we just switch over to the driver specific page tables and everything should more or less continue to work.
>
> For Nouveau I'm not 100% sure, but from the code it of hand looks like we can do it similar to Radeon.
>
> Please comment what you think about this.
There's some AGP support code in the DRM core. Can some of that declared
as legacy?
Specifically, what about these AGP-related ioctl calls? Can they be
declared as legacy? It would appear to me that KMS-based drivers don't
have to manage AGP by themselves. (?)
Best regards
Thomas
>
> Regards,
> Christian.
>
>
> _______________________________________________
> Nouveau mailing list
> Nouveau@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/nouveau
>
--
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Maxfeldstr. 5, 90409 Nürnberg, Germany
(HRB 36809, AG Nürnberg)
Geschäftsführer: Felix Imendörffer
[-- Attachment #1.2: OpenPGP digital signature --]
[-- Type: application/pgp-signature, Size: 488 bytes --]
[-- Attachment #2: Type: text/plain, Size: 154 bytes --]
_______________________________________________
amd-gfx mailing list
amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx
^ permalink raw reply [flat|nested] 81+ messages in thread
* Re: [Nouveau] [RFC] Remove AGP support from Radeon/Nouveau/TTM
2020-05-12 18:29 ` Thomas Zimmermann
(?)
@ 2020-05-12 18:32 ` Alex Deucher
-1 siblings, 0 replies; 81+ messages in thread
From: Alex Deucher @ 2020-05-12 18:32 UTC (permalink / raw)
To: Thomas Zimmermann
Cc: Christian König, amd-gfx list, Maling list - DRI developers,
nouveau
On Tue, May 12, 2020 at 2:29 PM Thomas Zimmermann <tzimmermann@suse.de> wrote:
>
> Hi
>
> Am 11.05.20 um 19:17 schrieb Christian König:
> > Hi guys,
> >
> > Well let's face it AGP is a total headache to maintain and dead for at least 10+ years.
> >
> > We have a lot of x86 specific stuff in the architecture independent graphics memory management to get the caching right, abusing the DMA API on multiple occasions, need to distinct between AGP and driver specific page tables etc etc...
> >
> > So the idea here is to just go ahead and remove the support from Radeon and Nouveau and then drop the necessary code from TTM.
> >
> > For Radeon this means that we just switch over to the driver specific page tables and everything should more or less continue to work.
> >
> > For Nouveau I'm not 100% sure, but from the code it of hand looks like we can do it similar to Radeon.
> >
> > Please comment what you think about this.
>
> There's some AGP support code in the DRM core. Can some of that declared
> as legacy?
>
> Specifically, what about these AGP-related ioctl calls? Can they be
> declared as legacy? It would appear to me that KMS-based drivers don't
> have to manage AGP by themselves. (?)
The old drm core AGP code is mainly (only?) for the non-KMS drivers.
E.g., mach64, r128, sis, savage, etc.
Alex
>
> Best regards
> Thomas
>
> >
> > Regards,
> > Christian.
> >
> >
> > _______________________________________________
> > Nouveau mailing list
> > Nouveau@lists.freedesktop.org
> > https://lists.freedesktop.org/mailman/listinfo/nouveau
> >
>
> --
> Thomas Zimmermann
> Graphics Driver Developer
> SUSE Software Solutions Germany GmbH
> Maxfeldstr. 5, 90409 Nürnberg, Germany
> (HRB 36809, AG Nürnberg)
> Geschäftsführer: Felix Imendörffer
>
> _______________________________________________
> amd-gfx mailing list
> amd-gfx@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/amd-gfx
_______________________________________________
amd-gfx mailing list
amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx
^ permalink raw reply [flat|nested] 81+ messages in thread
* Re: [Nouveau] [RFC] Remove AGP support from Radeon/Nouveau/TTM
@ 2020-05-12 18:32 ` Alex Deucher
0 siblings, 0 replies; 81+ messages in thread
From: Alex Deucher @ 2020-05-12 18:32 UTC (permalink / raw)
To: Thomas Zimmermann
Cc: Christian König, amd-gfx list, Maling list - DRI developers,
nouveau
On Tue, May 12, 2020 at 2:29 PM Thomas Zimmermann <tzimmermann@suse.de> wrote:
>
> Hi
>
> Am 11.05.20 um 19:17 schrieb Christian König:
> > Hi guys,
> >
> > Well let's face it AGP is a total headache to maintain and dead for at least 10+ years.
> >
> > We have a lot of x86 specific stuff in the architecture independent graphics memory management to get the caching right, abusing the DMA API on multiple occasions, need to distinct between AGP and driver specific page tables etc etc...
> >
> > So the idea here is to just go ahead and remove the support from Radeon and Nouveau and then drop the necessary code from TTM.
> >
> > For Radeon this means that we just switch over to the driver specific page tables and everything should more or less continue to work.
> >
> > For Nouveau I'm not 100% sure, but from the code it of hand looks like we can do it similar to Radeon.
> >
> > Please comment what you think about this.
>
> There's some AGP support code in the DRM core. Can some of that declared
> as legacy?
>
> Specifically, what about these AGP-related ioctl calls? Can they be
> declared as legacy? It would appear to me that KMS-based drivers don't
> have to manage AGP by themselves. (?)
The old drm core AGP code is mainly (only?) for the non-KMS drivers.
E.g., mach64, r128, sis, savage, etc.
Alex
>
> Best regards
> Thomas
>
> >
> > Regards,
> > Christian.
> >
> >
> > _______________________________________________
> > Nouveau mailing list
> > Nouveau@lists.freedesktop.org
> > https://lists.freedesktop.org/mailman/listinfo/nouveau
> >
>
> --
> Thomas Zimmermann
> Graphics Driver Developer
> SUSE Software Solutions Germany GmbH
> Maxfeldstr. 5, 90409 Nürnberg, Germany
> (HRB 36809, AG Nürnberg)
> Geschäftsführer: Felix Imendörffer
>
> _______________________________________________
> amd-gfx mailing list
> amd-gfx@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/amd-gfx
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 81+ messages in thread
* Re: [Nouveau] [RFC] Remove AGP support from Radeon/Nouveau/TTM
@ 2020-05-12 18:32 ` Alex Deucher
0 siblings, 0 replies; 81+ messages in thread
From: Alex Deucher @ 2020-05-12 18:32 UTC (permalink / raw)
To: Thomas Zimmermann
Cc: Christian König, amd-gfx list, Maling list - DRI developers,
nouveau
On Tue, May 12, 2020 at 2:29 PM Thomas Zimmermann <tzimmermann@suse.de> wrote:
>
> Hi
>
> Am 11.05.20 um 19:17 schrieb Christian König:
> > Hi guys,
> >
> > Well let's face it AGP is a total headache to maintain and dead for at least 10+ years.
> >
> > We have a lot of x86 specific stuff in the architecture independent graphics memory management to get the caching right, abusing the DMA API on multiple occasions, need to distinct between AGP and driver specific page tables etc etc...
> >
> > So the idea here is to just go ahead and remove the support from Radeon and Nouveau and then drop the necessary code from TTM.
> >
> > For Radeon this means that we just switch over to the driver specific page tables and everything should more or less continue to work.
> >
> > For Nouveau I'm not 100% sure, but from the code it of hand looks like we can do it similar to Radeon.
> >
> > Please comment what you think about this.
>
> There's some AGP support code in the DRM core. Can some of that declared
> as legacy?
>
> Specifically, what about these AGP-related ioctl calls? Can they be
> declared as legacy? It would appear to me that KMS-based drivers don't
> have to manage AGP by themselves. (?)
The old drm core AGP code is mainly (only?) for the non-KMS drivers.
E.g., mach64, r128, sis, savage, etc.
Alex
>
> Best regards
> Thomas
>
> >
> > Regards,
> > Christian.
> >
> >
> > _______________________________________________
> > Nouveau mailing list
> > Nouveau@lists.freedesktop.org
> > https://lists.freedesktop.org/mailman/listinfo/nouveau
> >
>
> --
> Thomas Zimmermann
> Graphics Driver Developer
> SUSE Software Solutions Germany GmbH
> Maxfeldstr. 5, 90409 Nürnberg, Germany
> (HRB 36809, AG Nürnberg)
> Geschäftsführer: Felix Imendörffer
>
> _______________________________________________
> amd-gfx mailing list
> amd-gfx@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/amd-gfx
_______________________________________________
amd-gfx mailing list
amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx
^ permalink raw reply [flat|nested] 81+ messages in thread
* Re: [Nouveau] [RFC] Remove AGP support from Radeon/Nouveau/TTM
2020-05-12 18:32 ` Alex Deucher
(?)
@ 2020-05-12 19:10 ` Thomas Zimmermann
-1 siblings, 0 replies; 81+ messages in thread
From: Thomas Zimmermann @ 2020-05-12 19:10 UTC (permalink / raw)
To: Alex Deucher
Cc: Christian König, amd-gfx list, Maling list - DRI developers,
nouveau
[-- Attachment #1.1.1: Type: text/plain, Size: 2738 bytes --]
Hi Alex
Am 12.05.20 um 20:32 schrieb Alex Deucher:
> On Tue, May 12, 2020 at 2:29 PM Thomas Zimmermann <tzimmermann-l3A5Bk7waGM@public.gmane.org> wrote:
>>
>> Hi
>>
>> Am 11.05.20 um 19:17 schrieb Christian König:
>>> Hi guys,
>>>
>>> Well let's face it AGP is a total headache to maintain and dead for at least 10+ years.
>>>
>>> We have a lot of x86 specific stuff in the architecture independent graphics memory management to get the caching right, abusing the DMA API on multiple occasions, need to distinct between AGP and driver specific page tables etc etc...
>>>
>>> So the idea here is to just go ahead and remove the support from Radeon and Nouveau and then drop the necessary code from TTM.
>>>
>>> For Radeon this means that we just switch over to the driver specific page tables and everything should more or less continue to work.
>>>
>>> For Nouveau I'm not 100% sure, but from the code it of hand looks like we can do it similar to Radeon.
>>>
>>> Please comment what you think about this.
>>
>> There's some AGP support code in the DRM core. Can some of that declared
>> as legacy?
>>
>> Specifically, what about these AGP-related ioctl calls? Can they be
>> declared as legacy? It would appear to me that KMS-based drivers don't
>> have to manage AGP by themselves. (?)
>
> The old drm core AGP code is mainly (only?) for the non-KMS drivers.
> E.g., mach64, r128, sis, savage, etc.
Exactly my point. There's one drm_agp_init() call left in radeon. The
rest of the AGP code is apparently for legacy non-KMS drivers. Should
the related ioctl calls be declared as legacy (i.e., listed with
DRM_LEGACY_IOCTL_DEF instead of DRM_IOCTL_DEF)? If so, much of the AGP
core code could probably be moved behind CONFIG_DRM_LEGACY as well.
Best regards
Thomas
>
> Alex
>
>>
>> Best regards
>> Thomas
>>
>>>
>>> Regards,
>>> Christian.
>>>
>>>
>>> _______________________________________________
>>> Nouveau mailing list
>>> Nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
>>> https://lists.freedesktop.org/mailman/listinfo/nouveau
>>>
>>
>> --
>> Thomas Zimmermann
>> Graphics Driver Developer
>> SUSE Software Solutions Germany GmbH
>> Maxfeldstr. 5, 90409 Nürnberg, Germany
>> (HRB 36809, AG Nürnberg)
>> Geschäftsführer: Felix Imendörffer
>>
>> _______________________________________________
>> amd-gfx mailing list
>> amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
>> https://lists.freedesktop.org/mailman/listinfo/amd-gfx
--
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Maxfeldstr. 5, 90409 Nürnberg, Germany
(HRB 36809, AG Nürnberg)
Geschäftsführer: Felix Imendörffer
[-- Attachment #1.2: OpenPGP digital signature --]
[-- Type: application/pgp-signature, Size: 488 bytes --]
[-- Attachment #2: Type: text/plain, Size: 182 bytes --]
_______________________________________________
amd-gfx mailing list
amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx
^ permalink raw reply [flat|nested] 81+ messages in thread
* Re: [Nouveau] [RFC] Remove AGP support from Radeon/Nouveau/TTM
@ 2020-05-12 19:10 ` Thomas Zimmermann
0 siblings, 0 replies; 81+ messages in thread
From: Thomas Zimmermann @ 2020-05-12 19:10 UTC (permalink / raw)
To: Alex Deucher
Cc: Christian König, amd-gfx list, Maling list - DRI developers,
nouveau
[-- Attachment #1.1.1: Type: text/plain, Size: 2661 bytes --]
Hi Alex
Am 12.05.20 um 20:32 schrieb Alex Deucher:
> On Tue, May 12, 2020 at 2:29 PM Thomas Zimmermann <tzimmermann@suse.de> wrote:
>>
>> Hi
>>
>> Am 11.05.20 um 19:17 schrieb Christian König:
>>> Hi guys,
>>>
>>> Well let's face it AGP is a total headache to maintain and dead for at least 10+ years.
>>>
>>> We have a lot of x86 specific stuff in the architecture independent graphics memory management to get the caching right, abusing the DMA API on multiple occasions, need to distinct between AGP and driver specific page tables etc etc...
>>>
>>> So the idea here is to just go ahead and remove the support from Radeon and Nouveau and then drop the necessary code from TTM.
>>>
>>> For Radeon this means that we just switch over to the driver specific page tables and everything should more or less continue to work.
>>>
>>> For Nouveau I'm not 100% sure, but from the code it of hand looks like we can do it similar to Radeon.
>>>
>>> Please comment what you think about this.
>>
>> There's some AGP support code in the DRM core. Can some of that declared
>> as legacy?
>>
>> Specifically, what about these AGP-related ioctl calls? Can they be
>> declared as legacy? It would appear to me that KMS-based drivers don't
>> have to manage AGP by themselves. (?)
>
> The old drm core AGP code is mainly (only?) for the non-KMS drivers.
> E.g., mach64, r128, sis, savage, etc.
Exactly my point. There's one drm_agp_init() call left in radeon. The
rest of the AGP code is apparently for legacy non-KMS drivers. Should
the related ioctl calls be declared as legacy (i.e., listed with
DRM_LEGACY_IOCTL_DEF instead of DRM_IOCTL_DEF)? If so, much of the AGP
core code could probably be moved behind CONFIG_DRM_LEGACY as well.
Best regards
Thomas
>
> Alex
>
>>
>> Best regards
>> Thomas
>>
>>>
>>> Regards,
>>> Christian.
>>>
>>>
>>> _______________________________________________
>>> Nouveau mailing list
>>> Nouveau@lists.freedesktop.org
>>> https://lists.freedesktop.org/mailman/listinfo/nouveau
>>>
>>
>> --
>> Thomas Zimmermann
>> Graphics Driver Developer
>> SUSE Software Solutions Germany GmbH
>> Maxfeldstr. 5, 90409 Nürnberg, Germany
>> (HRB 36809, AG Nürnberg)
>> Geschäftsführer: Felix Imendörffer
>>
>> _______________________________________________
>> amd-gfx mailing list
>> amd-gfx@lists.freedesktop.org
>> https://lists.freedesktop.org/mailman/listinfo/amd-gfx
--
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Maxfeldstr. 5, 90409 Nürnberg, Germany
(HRB 36809, AG Nürnberg)
Geschäftsführer: Felix Imendörffer
[-- Attachment #1.2: OpenPGP digital signature --]
[-- Type: application/pgp-signature, Size: 488 bytes --]
[-- Attachment #2: Type: text/plain, Size: 160 bytes --]
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 81+ messages in thread
* Re: [Nouveau] [RFC] Remove AGP support from Radeon/Nouveau/TTM
@ 2020-05-12 19:10 ` Thomas Zimmermann
0 siblings, 0 replies; 81+ messages in thread
From: Thomas Zimmermann @ 2020-05-12 19:10 UTC (permalink / raw)
To: Alex Deucher
Cc: Christian König, amd-gfx list, Maling list - DRI developers,
nouveau
[-- Attachment #1.1.1: Type: text/plain, Size: 2661 bytes --]
Hi Alex
Am 12.05.20 um 20:32 schrieb Alex Deucher:
> On Tue, May 12, 2020 at 2:29 PM Thomas Zimmermann <tzimmermann@suse.de> wrote:
>>
>> Hi
>>
>> Am 11.05.20 um 19:17 schrieb Christian König:
>>> Hi guys,
>>>
>>> Well let's face it AGP is a total headache to maintain and dead for at least 10+ years.
>>>
>>> We have a lot of x86 specific stuff in the architecture independent graphics memory management to get the caching right, abusing the DMA API on multiple occasions, need to distinct between AGP and driver specific page tables etc etc...
>>>
>>> So the idea here is to just go ahead and remove the support from Radeon and Nouveau and then drop the necessary code from TTM.
>>>
>>> For Radeon this means that we just switch over to the driver specific page tables and everything should more or less continue to work.
>>>
>>> For Nouveau I'm not 100% sure, but from the code it of hand looks like we can do it similar to Radeon.
>>>
>>> Please comment what you think about this.
>>
>> There's some AGP support code in the DRM core. Can some of that declared
>> as legacy?
>>
>> Specifically, what about these AGP-related ioctl calls? Can they be
>> declared as legacy? It would appear to me that KMS-based drivers don't
>> have to manage AGP by themselves. (?)
>
> The old drm core AGP code is mainly (only?) for the non-KMS drivers.
> E.g., mach64, r128, sis, savage, etc.
Exactly my point. There's one drm_agp_init() call left in radeon. The
rest of the AGP code is apparently for legacy non-KMS drivers. Should
the related ioctl calls be declared as legacy (i.e., listed with
DRM_LEGACY_IOCTL_DEF instead of DRM_IOCTL_DEF)? If so, much of the AGP
core code could probably be moved behind CONFIG_DRM_LEGACY as well.
Best regards
Thomas
>
> Alex
>
>>
>> Best regards
>> Thomas
>>
>>>
>>> Regards,
>>> Christian.
>>>
>>>
>>> _______________________________________________
>>> Nouveau mailing list
>>> Nouveau@lists.freedesktop.org
>>> https://lists.freedesktop.org/mailman/listinfo/nouveau
>>>
>>
>> --
>> Thomas Zimmermann
>> Graphics Driver Developer
>> SUSE Software Solutions Germany GmbH
>> Maxfeldstr. 5, 90409 Nürnberg, Germany
>> (HRB 36809, AG Nürnberg)
>> Geschäftsführer: Felix Imendörffer
>>
>> _______________________________________________
>> amd-gfx mailing list
>> amd-gfx@lists.freedesktop.org
>> https://lists.freedesktop.org/mailman/listinfo/amd-gfx
--
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Maxfeldstr. 5, 90409 Nürnberg, Germany
(HRB 36809, AG Nürnberg)
Geschäftsführer: Felix Imendörffer
[-- Attachment #1.2: OpenPGP digital signature --]
[-- Type: application/pgp-signature, Size: 488 bytes --]
[-- Attachment #2: Type: text/plain, Size: 154 bytes --]
_______________________________________________
amd-gfx mailing list
amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx
^ permalink raw reply [flat|nested] 81+ messages in thread
* Re: [Nouveau] [RFC] Remove AGP support from Radeon/Nouveau/TTM
2020-05-12 19:10 ` Thomas Zimmermann
(?)
@ 2020-05-12 19:47 ` Alex Deucher
-1 siblings, 0 replies; 81+ messages in thread
From: Alex Deucher @ 2020-05-12 19:47 UTC (permalink / raw)
To: Thomas Zimmermann
Cc: Christian König, amd-gfx list, Maling list - DRI developers,
nouveau
On Tue, May 12, 2020 at 3:10 PM Thomas Zimmermann <tzimmermann@suse.de> wrote:
>
> Hi Alex
>
> Am 12.05.20 um 20:32 schrieb Alex Deucher:
> > On Tue, May 12, 2020 at 2:29 PM Thomas Zimmermann <tzimmermann@suse.de> wrote:
> >>
> >> Hi
> >>
> >> Am 11.05.20 um 19:17 schrieb Christian König:
> >>> Hi guys,
> >>>
> >>> Well let's face it AGP is a total headache to maintain and dead for at least 10+ years.
> >>>
> >>> We have a lot of x86 specific stuff in the architecture independent graphics memory management to get the caching right, abusing the DMA API on multiple occasions, need to distinct between AGP and driver specific page tables etc etc...
> >>>
> >>> So the idea here is to just go ahead and remove the support from Radeon and Nouveau and then drop the necessary code from TTM.
> >>>
> >>> For Radeon this means that we just switch over to the driver specific page tables and everything should more or less continue to work.
> >>>
> >>> For Nouveau I'm not 100% sure, but from the code it of hand looks like we can do it similar to Radeon.
> >>>
> >>> Please comment what you think about this.
> >>
> >> There's some AGP support code in the DRM core. Can some of that declared
> >> as legacy?
> >>
> >> Specifically, what about these AGP-related ioctl calls? Can they be
> >> declared as legacy? It would appear to me that KMS-based drivers don't
> >> have to manage AGP by themselves. (?)
> >
> > The old drm core AGP code is mainly (only?) for the non-KMS drivers.
> > E.g., mach64, r128, sis, savage, etc.
>
> Exactly my point. There's one drm_agp_init() call left in radeon. The
> rest of the AGP code is apparently for legacy non-KMS drivers. Should
> the related ioctl calls be declared as legacy (i.e., listed with
> DRM_LEGACY_IOCTL_DEF instead of DRM_IOCTL_DEF)? If so, much of the AGP
> core code could probably be moved behind CONFIG_DRM_LEGACY as well.
Ah, I forgot about drm_agp_init(). I was just thinking the other AGP
stuff. Yeah, I think we could make it legacy.
Alex
>
> Best regards
> Thomas
>
> >
> > Alex
> >
> >>
> >> Best regards
> >> Thomas
> >>
> >>>
> >>> Regards,
> >>> Christian.
> >>>
> >>>
> >>> _______________________________________________
> >>> Nouveau mailing list
> >>> Nouveau@lists.freedesktop.org
> >>> https://lists.freedesktop.org/mailman/listinfo/nouveau
> >>>
> >>
> >> --
> >> Thomas Zimmermann
> >> Graphics Driver Developer
> >> SUSE Software Solutions Germany GmbH
> >> Maxfeldstr. 5, 90409 Nürnberg, Germany
> >> (HRB 36809, AG Nürnberg)
> >> Geschäftsführer: Felix Imendörffer
> >>
> >> _______________________________________________
> >> amd-gfx mailing list
> >> amd-gfx@lists.freedesktop.org
> >> https://lists.freedesktop.org/mailman/listinfo/amd-gfx
>
> --
> Thomas Zimmermann
> Graphics Driver Developer
> SUSE Software Solutions Germany GmbH
> Maxfeldstr. 5, 90409 Nürnberg, Germany
> (HRB 36809, AG Nürnberg)
> Geschäftsführer: Felix Imendörffer
>
_______________________________________________
amd-gfx mailing list
amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx
^ permalink raw reply [flat|nested] 81+ messages in thread
* Re: [Nouveau] [RFC] Remove AGP support from Radeon/Nouveau/TTM
@ 2020-05-12 19:47 ` Alex Deucher
0 siblings, 0 replies; 81+ messages in thread
From: Alex Deucher @ 2020-05-12 19:47 UTC (permalink / raw)
To: Thomas Zimmermann
Cc: Christian König, amd-gfx list, Maling list - DRI developers,
nouveau
On Tue, May 12, 2020 at 3:10 PM Thomas Zimmermann <tzimmermann@suse.de> wrote:
>
> Hi Alex
>
> Am 12.05.20 um 20:32 schrieb Alex Deucher:
> > On Tue, May 12, 2020 at 2:29 PM Thomas Zimmermann <tzimmermann@suse.de> wrote:
> >>
> >> Hi
> >>
> >> Am 11.05.20 um 19:17 schrieb Christian König:
> >>> Hi guys,
> >>>
> >>> Well let's face it AGP is a total headache to maintain and dead for at least 10+ years.
> >>>
> >>> We have a lot of x86 specific stuff in the architecture independent graphics memory management to get the caching right, abusing the DMA API on multiple occasions, need to distinct between AGP and driver specific page tables etc etc...
> >>>
> >>> So the idea here is to just go ahead and remove the support from Radeon and Nouveau and then drop the necessary code from TTM.
> >>>
> >>> For Radeon this means that we just switch over to the driver specific page tables and everything should more or less continue to work.
> >>>
> >>> For Nouveau I'm not 100% sure, but from the code it of hand looks like we can do it similar to Radeon.
> >>>
> >>> Please comment what you think about this.
> >>
> >> There's some AGP support code in the DRM core. Can some of that declared
> >> as legacy?
> >>
> >> Specifically, what about these AGP-related ioctl calls? Can they be
> >> declared as legacy? It would appear to me that KMS-based drivers don't
> >> have to manage AGP by themselves. (?)
> >
> > The old drm core AGP code is mainly (only?) for the non-KMS drivers.
> > E.g., mach64, r128, sis, savage, etc.
>
> Exactly my point. There's one drm_agp_init() call left in radeon. The
> rest of the AGP code is apparently for legacy non-KMS drivers. Should
> the related ioctl calls be declared as legacy (i.e., listed with
> DRM_LEGACY_IOCTL_DEF instead of DRM_IOCTL_DEF)? If so, much of the AGP
> core code could probably be moved behind CONFIG_DRM_LEGACY as well.
Ah, I forgot about drm_agp_init(). I was just thinking the other AGP
stuff. Yeah, I think we could make it legacy.
Alex
>
> Best regards
> Thomas
>
> >
> > Alex
> >
> >>
> >> Best regards
> >> Thomas
> >>
> >>>
> >>> Regards,
> >>> Christian.
> >>>
> >>>
> >>> _______________________________________________
> >>> Nouveau mailing list
> >>> Nouveau@lists.freedesktop.org
> >>> https://lists.freedesktop.org/mailman/listinfo/nouveau
> >>>
> >>
> >> --
> >> Thomas Zimmermann
> >> Graphics Driver Developer
> >> SUSE Software Solutions Germany GmbH
> >> Maxfeldstr. 5, 90409 Nürnberg, Germany
> >> (HRB 36809, AG Nürnberg)
> >> Geschäftsführer: Felix Imendörffer
> >>
> >> _______________________________________________
> >> amd-gfx mailing list
> >> amd-gfx@lists.freedesktop.org
> >> https://lists.freedesktop.org/mailman/listinfo/amd-gfx
>
> --
> Thomas Zimmermann
> Graphics Driver Developer
> SUSE Software Solutions Germany GmbH
> Maxfeldstr. 5, 90409 Nürnberg, Germany
> (HRB 36809, AG Nürnberg)
> Geschäftsführer: Felix Imendörffer
>
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 81+ messages in thread
* Re: [Nouveau] [RFC] Remove AGP support from Radeon/Nouveau/TTM
@ 2020-05-12 19:47 ` Alex Deucher
0 siblings, 0 replies; 81+ messages in thread
From: Alex Deucher @ 2020-05-12 19:47 UTC (permalink / raw)
To: Thomas Zimmermann
Cc: Christian König, amd-gfx list, Maling list - DRI developers,
nouveau
On Tue, May 12, 2020 at 3:10 PM Thomas Zimmermann <tzimmermann@suse.de> wrote:
>
> Hi Alex
>
> Am 12.05.20 um 20:32 schrieb Alex Deucher:
> > On Tue, May 12, 2020 at 2:29 PM Thomas Zimmermann <tzimmermann@suse.de> wrote:
> >>
> >> Hi
> >>
> >> Am 11.05.20 um 19:17 schrieb Christian König:
> >>> Hi guys,
> >>>
> >>> Well let's face it AGP is a total headache to maintain and dead for at least 10+ years.
> >>>
> >>> We have a lot of x86 specific stuff in the architecture independent graphics memory management to get the caching right, abusing the DMA API on multiple occasions, need to distinct between AGP and driver specific page tables etc etc...
> >>>
> >>> So the idea here is to just go ahead and remove the support from Radeon and Nouveau and then drop the necessary code from TTM.
> >>>
> >>> For Radeon this means that we just switch over to the driver specific page tables and everything should more or less continue to work.
> >>>
> >>> For Nouveau I'm not 100% sure, but from the code it of hand looks like we can do it similar to Radeon.
> >>>
> >>> Please comment what you think about this.
> >>
> >> There's some AGP support code in the DRM core. Can some of that declared
> >> as legacy?
> >>
> >> Specifically, what about these AGP-related ioctl calls? Can they be
> >> declared as legacy? It would appear to me that KMS-based drivers don't
> >> have to manage AGP by themselves. (?)
> >
> > The old drm core AGP code is mainly (only?) for the non-KMS drivers.
> > E.g., mach64, r128, sis, savage, etc.
>
> Exactly my point. There's one drm_agp_init() call left in radeon. The
> rest of the AGP code is apparently for legacy non-KMS drivers. Should
> the related ioctl calls be declared as legacy (i.e., listed with
> DRM_LEGACY_IOCTL_DEF instead of DRM_IOCTL_DEF)? If so, much of the AGP
> core code could probably be moved behind CONFIG_DRM_LEGACY as well.
Ah, I forgot about drm_agp_init(). I was just thinking the other AGP
stuff. Yeah, I think we could make it legacy.
Alex
>
> Best regards
> Thomas
>
> >
> > Alex
> >
> >>
> >> Best regards
> >> Thomas
> >>
> >>>
> >>> Regards,
> >>> Christian.
> >>>
> >>>
> >>> _______________________________________________
> >>> Nouveau mailing list
> >>> Nouveau@lists.freedesktop.org
> >>> https://lists.freedesktop.org/mailman/listinfo/nouveau
> >>>
> >>
> >> --
> >> Thomas Zimmermann
> >> Graphics Driver Developer
> >> SUSE Software Solutions Germany GmbH
> >> Maxfeldstr. 5, 90409 Nürnberg, Germany
> >> (HRB 36809, AG Nürnberg)
> >> Geschäftsführer: Felix Imendörffer
> >>
> >> _______________________________________________
> >> amd-gfx mailing list
> >> amd-gfx@lists.freedesktop.org
> >> https://lists.freedesktop.org/mailman/listinfo/amd-gfx
>
> --
> Thomas Zimmermann
> Graphics Driver Developer
> SUSE Software Solutions Germany GmbH
> Maxfeldstr. 5, 90409 Nürnberg, Germany
> (HRB 36809, AG Nürnberg)
> Geschäftsführer: Felix Imendörffer
>
_______________________________________________
amd-gfx mailing list
amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx
^ permalink raw reply [flat|nested] 81+ messages in thread
* Re: [PATCH 1/3] drm/radeon: remove AGP support
2020-05-12 13:36 ` Alex Deucher
(?)
@ 2020-05-12 20:52 ` Roy Spliet
-1 siblings, 0 replies; 81+ messages in thread
From: Roy Spliet @ 2020-05-12 20:52 UTC (permalink / raw)
To: Alex Deucher, Michel Dänzer
Cc: Christian König, amd-gfx list, Maling list - DRI developers,
nouveau
Op 12-05-2020 om 14:36 schreef Alex Deucher:
> On Tue, May 12, 2020 at 4:16 AM Michel Dänzer <michel@daenzer.net> wrote:
>>
>> On 2020-05-11 10:12 p.m., Alex Deucher wrote:
>>> On Mon, May 11, 2020 at 1:17 PM Christian König
>>> <ckoenig.leichtzumerken@gmail.com> wrote:
>>>>
>>>> AGP is deprecated for 10+ years now and not used any more on modern hardware.
>>>>
>>>> Old hardware should continue to work in PCI mode.
>>>
>>> Might want to clarify that there is no loss of functionality here.
>>> Something like:
>>>
>>> "There is no loss of functionality here. GPUs will continue to
>>> function. This just drops the use of the AGP MMU in the chipset in
>>> favor of the MMU on the device which has proven to be much more
>>> reliable. Due to its unreliability, AGP support has been disabled on
>>> PowerPC for years already so there is no change on PowerPC."
>>
>> There's a difference between something being disabled by default or not
>> being available at all. We may decide it's worth it anyway, but let's do
>> it based on facts.
>>
>
> I didn't mean to imply that AGP GART support was already removed. But
> for the vast majority of users the end result is the same. If you
> knew enough re-enable AGP GART, you probably wouldn't have been as
> confused about what this patch set does either. To reiterate, this
> patch set does not remove support for AGP cards, it only removes the
> support for AGP GART. The cards will still be functional using the
> device GART. There may be performance tradeoffs there in some cases.
I'll volunteer to be the one asking: how big is this performance
difference? Have any benchmarks been run before and after removal of AGP
GART code on affected nouveau/radeon systems? Or is this code being
dropped _just_ because it's cumbersome, with no regard for metrics that
determine the value of AGP GART support?
Roy
>
> Alex
> _______________________________________________
> Nouveau mailing list
> Nouveau@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/nouveau
>
_______________________________________________
Nouveau mailing list
Nouveau@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/nouveau
^ permalink raw reply [flat|nested] 81+ messages in thread
* Re: [Nouveau] [PATCH 1/3] drm/radeon: remove AGP support
@ 2020-05-12 20:52 ` Roy Spliet
0 siblings, 0 replies; 81+ messages in thread
From: Roy Spliet @ 2020-05-12 20:52 UTC (permalink / raw)
To: Alex Deucher, Michel Dänzer
Cc: Christian König, amd-gfx list, Maling list - DRI developers,
nouveau
Op 12-05-2020 om 14:36 schreef Alex Deucher:
> On Tue, May 12, 2020 at 4:16 AM Michel Dänzer <michel@daenzer.net> wrote:
>>
>> On 2020-05-11 10:12 p.m., Alex Deucher wrote:
>>> On Mon, May 11, 2020 at 1:17 PM Christian König
>>> <ckoenig.leichtzumerken@gmail.com> wrote:
>>>>
>>>> AGP is deprecated for 10+ years now and not used any more on modern hardware.
>>>>
>>>> Old hardware should continue to work in PCI mode.
>>>
>>> Might want to clarify that there is no loss of functionality here.
>>> Something like:
>>>
>>> "There is no loss of functionality here. GPUs will continue to
>>> function. This just drops the use of the AGP MMU in the chipset in
>>> favor of the MMU on the device which has proven to be much more
>>> reliable. Due to its unreliability, AGP support has been disabled on
>>> PowerPC for years already so there is no change on PowerPC."
>>
>> There's a difference between something being disabled by default or not
>> being available at all. We may decide it's worth it anyway, but let's do
>> it based on facts.
>>
>
> I didn't mean to imply that AGP GART support was already removed. But
> for the vast majority of users the end result is the same. If you
> knew enough re-enable AGP GART, you probably wouldn't have been as
> confused about what this patch set does either. To reiterate, this
> patch set does not remove support for AGP cards, it only removes the
> support for AGP GART. The cards will still be functional using the
> device GART. There may be performance tradeoffs there in some cases.
I'll volunteer to be the one asking: how big is this performance
difference? Have any benchmarks been run before and after removal of AGP
GART code on affected nouveau/radeon systems? Or is this code being
dropped _just_ because it's cumbersome, with no regard for metrics that
determine the value of AGP GART support?
Roy
>
> Alex
> _______________________________________________
> Nouveau mailing list
> Nouveau@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/nouveau
>
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 81+ messages in thread
* Re: [Nouveau] [PATCH 1/3] drm/radeon: remove AGP support
@ 2020-05-12 20:52 ` Roy Spliet
0 siblings, 0 replies; 81+ messages in thread
From: Roy Spliet @ 2020-05-12 20:52 UTC (permalink / raw)
To: Alex Deucher, Michel Dänzer
Cc: Christian König, amd-gfx list, Maling list - DRI developers,
nouveau
Op 12-05-2020 om 14:36 schreef Alex Deucher:
> On Tue, May 12, 2020 at 4:16 AM Michel Dänzer <michel@daenzer.net> wrote:
>>
>> On 2020-05-11 10:12 p.m., Alex Deucher wrote:
>>> On Mon, May 11, 2020 at 1:17 PM Christian König
>>> <ckoenig.leichtzumerken@gmail.com> wrote:
>>>>
>>>> AGP is deprecated for 10+ years now and not used any more on modern hardware.
>>>>
>>>> Old hardware should continue to work in PCI mode.
>>>
>>> Might want to clarify that there is no loss of functionality here.
>>> Something like:
>>>
>>> "There is no loss of functionality here. GPUs will continue to
>>> function. This just drops the use of the AGP MMU in the chipset in
>>> favor of the MMU on the device which has proven to be much more
>>> reliable. Due to its unreliability, AGP support has been disabled on
>>> PowerPC for years already so there is no change on PowerPC."
>>
>> There's a difference between something being disabled by default or not
>> being available at all. We may decide it's worth it anyway, but let's do
>> it based on facts.
>>
>
> I didn't mean to imply that AGP GART support was already removed. But
> for the vast majority of users the end result is the same. If you
> knew enough re-enable AGP GART, you probably wouldn't have been as
> confused about what this patch set does either. To reiterate, this
> patch set does not remove support for AGP cards, it only removes the
> support for AGP GART. The cards will still be functional using the
> device GART. There may be performance tradeoffs there in some cases.
I'll volunteer to be the one asking: how big is this performance
difference? Have any benchmarks been run before and after removal of AGP
GART code on affected nouveau/radeon systems? Or is this code being
dropped _just_ because it's cumbersome, with no regard for metrics that
determine the value of AGP GART support?
Roy
>
> Alex
> _______________________________________________
> Nouveau mailing list
> Nouveau@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/nouveau
>
_______________________________________________
amd-gfx mailing list
amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx
^ permalink raw reply [flat|nested] 81+ messages in thread
* Re: [Nouveau] [PATCH 1/3] drm/radeon: remove AGP support
2020-05-12 20:52 ` Roy Spliet
(?)
@ 2020-05-12 21:12 ` Alex Deucher
-1 siblings, 0 replies; 81+ messages in thread
From: Alex Deucher @ 2020-05-12 21:12 UTC (permalink / raw)
To: Roy Spliet
Cc: Christian König, Michel Dänzer, amd-gfx list,
Maling list - DRI developers, nouveau
On Tue, May 12, 2020 at 4:52 PM Roy Spliet <nouveau@spliet.org> wrote:
>
> Op 12-05-2020 om 14:36 schreef Alex Deucher:
> > On Tue, May 12, 2020 at 4:16 AM Michel Dänzer <michel@daenzer.net> wrote:
> >>
> >> On 2020-05-11 10:12 p.m., Alex Deucher wrote:
> >>> On Mon, May 11, 2020 at 1:17 PM Christian König
> >>> <ckoenig.leichtzumerken@gmail.com> wrote:
> >>>>
> >>>> AGP is deprecated for 10+ years now and not used any more on modern hardware.
> >>>>
> >>>> Old hardware should continue to work in PCI mode.
> >>>
> >>> Might want to clarify that there is no loss of functionality here.
> >>> Something like:
> >>>
> >>> "There is no loss of functionality here. GPUs will continue to
> >>> function. This just drops the use of the AGP MMU in the chipset in
> >>> favor of the MMU on the device which has proven to be much more
> >>> reliable. Due to its unreliability, AGP support has been disabled on
> >>> PowerPC for years already so there is no change on PowerPC."
> >>
> >> There's a difference between something being disabled by default or not
> >> being available at all. We may decide it's worth it anyway, but let's do
> >> it based on facts.
> >>
> >
> > I didn't mean to imply that AGP GART support was already removed. But
> > for the vast majority of users the end result is the same. If you
> > knew enough re-enable AGP GART, you probably wouldn't have been as
> > confused about what this patch set does either. To reiterate, this
> > patch set does not remove support for AGP cards, it only removes the
> > support for AGP GART. The cards will still be functional using the
> > device GART. There may be performance tradeoffs there in some cases.
>
> I'll volunteer to be the one asking: how big is this performance
> difference? Have any benchmarks been run before and after removal of AGP
> GART code on affected nouveau/radeon systems? Or is this code being
> dropped _just_ because it's cumbersome, with no regard for metrics that
> determine the value of AGP GART support?
>
I don't think anyone has any solid numbers, just anecdotal from
memory. I certainly don't have any functional AGP systems at this
point. It's mostly just cumbersome and would allow us to clean ttm
and probably improve stability at the same time. At least on the
radeon side, the only native AGP cards were r1xx, r2xx, and some of
the early r3xx boards. Once we switched to pcie mid-way through r3xx,
everything was native pcie and the AGP cards used a pcie to AGP bridge
chip so they had a decent on chip MMU. Those older cards topped out
at maybe 32 or 64 MB of vram, so they are going to be hard pressed to
deal with modern desktops anyway. No idea what sort of GART
capabilities NV AGP hardware at this time had.
Alex
> Roy
>
> >
> > Alex
> > _______________________________________________
> > Nouveau mailing list
> > Nouveau@lists.freedesktop.org
> > https://lists.freedesktop.org/mailman/listinfo/nouveau
> >
>
_______________________________________________
amd-gfx mailing list
amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx
^ permalink raw reply [flat|nested] 81+ messages in thread
* Re: [Nouveau] [PATCH 1/3] drm/radeon: remove AGP support
@ 2020-05-12 21:12 ` Alex Deucher
0 siblings, 0 replies; 81+ messages in thread
From: Alex Deucher @ 2020-05-12 21:12 UTC (permalink / raw)
To: Roy Spliet
Cc: Christian König, Michel Dänzer, amd-gfx list,
Maling list - DRI developers, nouveau
On Tue, May 12, 2020 at 4:52 PM Roy Spliet <nouveau@spliet.org> wrote:
>
> Op 12-05-2020 om 14:36 schreef Alex Deucher:
> > On Tue, May 12, 2020 at 4:16 AM Michel Dänzer <michel@daenzer.net> wrote:
> >>
> >> On 2020-05-11 10:12 p.m., Alex Deucher wrote:
> >>> On Mon, May 11, 2020 at 1:17 PM Christian König
> >>> <ckoenig.leichtzumerken@gmail.com> wrote:
> >>>>
> >>>> AGP is deprecated for 10+ years now and not used any more on modern hardware.
> >>>>
> >>>> Old hardware should continue to work in PCI mode.
> >>>
> >>> Might want to clarify that there is no loss of functionality here.
> >>> Something like:
> >>>
> >>> "There is no loss of functionality here. GPUs will continue to
> >>> function. This just drops the use of the AGP MMU in the chipset in
> >>> favor of the MMU on the device which has proven to be much more
> >>> reliable. Due to its unreliability, AGP support has been disabled on
> >>> PowerPC for years already so there is no change on PowerPC."
> >>
> >> There's a difference between something being disabled by default or not
> >> being available at all. We may decide it's worth it anyway, but let's do
> >> it based on facts.
> >>
> >
> > I didn't mean to imply that AGP GART support was already removed. But
> > for the vast majority of users the end result is the same. If you
> > knew enough re-enable AGP GART, you probably wouldn't have been as
> > confused about what this patch set does either. To reiterate, this
> > patch set does not remove support for AGP cards, it only removes the
> > support for AGP GART. The cards will still be functional using the
> > device GART. There may be performance tradeoffs there in some cases.
>
> I'll volunteer to be the one asking: how big is this performance
> difference? Have any benchmarks been run before and after removal of AGP
> GART code on affected nouveau/radeon systems? Or is this code being
> dropped _just_ because it's cumbersome, with no regard for metrics that
> determine the value of AGP GART support?
>
I don't think anyone has any solid numbers, just anecdotal from
memory. I certainly don't have any functional AGP systems at this
point. It's mostly just cumbersome and would allow us to clean ttm
and probably improve stability at the same time. At least on the
radeon side, the only native AGP cards were r1xx, r2xx, and some of
the early r3xx boards. Once we switched to pcie mid-way through r3xx,
everything was native pcie and the AGP cards used a pcie to AGP bridge
chip so they had a decent on chip MMU. Those older cards topped out
at maybe 32 or 64 MB of vram, so they are going to be hard pressed to
deal with modern desktops anyway. No idea what sort of GART
capabilities NV AGP hardware at this time had.
Alex
> Roy
>
> >
> > Alex
> > _______________________________________________
> > Nouveau mailing list
> > Nouveau@lists.freedesktop.org
> > https://lists.freedesktop.org/mailman/listinfo/nouveau
> >
>
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 81+ messages in thread
* Re: [Nouveau] [PATCH 1/3] drm/radeon: remove AGP support
@ 2020-05-12 21:12 ` Alex Deucher
0 siblings, 0 replies; 81+ messages in thread
From: Alex Deucher @ 2020-05-12 21:12 UTC (permalink / raw)
To: Roy Spliet
Cc: Christian König, Michel Dänzer, amd-gfx list,
Maling list - DRI developers, nouveau
On Tue, May 12, 2020 at 4:52 PM Roy Spliet <nouveau@spliet.org> wrote:
>
> Op 12-05-2020 om 14:36 schreef Alex Deucher:
> > On Tue, May 12, 2020 at 4:16 AM Michel Dänzer <michel@daenzer.net> wrote:
> >>
> >> On 2020-05-11 10:12 p.m., Alex Deucher wrote:
> >>> On Mon, May 11, 2020 at 1:17 PM Christian König
> >>> <ckoenig.leichtzumerken@gmail.com> wrote:
> >>>>
> >>>> AGP is deprecated for 10+ years now and not used any more on modern hardware.
> >>>>
> >>>> Old hardware should continue to work in PCI mode.
> >>>
> >>> Might want to clarify that there is no loss of functionality here.
> >>> Something like:
> >>>
> >>> "There is no loss of functionality here. GPUs will continue to
> >>> function. This just drops the use of the AGP MMU in the chipset in
> >>> favor of the MMU on the device which has proven to be much more
> >>> reliable. Due to its unreliability, AGP support has been disabled on
> >>> PowerPC for years already so there is no change on PowerPC."
> >>
> >> There's a difference between something being disabled by default or not
> >> being available at all. We may decide it's worth it anyway, but let's do
> >> it based on facts.
> >>
> >
> > I didn't mean to imply that AGP GART support was already removed. But
> > for the vast majority of users the end result is the same. If you
> > knew enough re-enable AGP GART, you probably wouldn't have been as
> > confused about what this patch set does either. To reiterate, this
> > patch set does not remove support for AGP cards, it only removes the
> > support for AGP GART. The cards will still be functional using the
> > device GART. There may be performance tradeoffs there in some cases.
>
> I'll volunteer to be the one asking: how big is this performance
> difference? Have any benchmarks been run before and after removal of AGP
> GART code on affected nouveau/radeon systems? Or is this code being
> dropped _just_ because it's cumbersome, with no regard for metrics that
> determine the value of AGP GART support?
>
I don't think anyone has any solid numbers, just anecdotal from
memory. I certainly don't have any functional AGP systems at this
point. It's mostly just cumbersome and would allow us to clean ttm
and probably improve stability at the same time. At least on the
radeon side, the only native AGP cards were r1xx, r2xx, and some of
the early r3xx boards. Once we switched to pcie mid-way through r3xx,
everything was native pcie and the AGP cards used a pcie to AGP bridge
chip so they had a decent on chip MMU. Those older cards topped out
at maybe 32 or 64 MB of vram, so they are going to be hard pressed to
deal with modern desktops anyway. No idea what sort of GART
capabilities NV AGP hardware at this time had.
Alex
> Roy
>
> >
> > Alex
> > _______________________________________________
> > Nouveau mailing list
> > Nouveau@lists.freedesktop.org
> > https://lists.freedesktop.org/mailman/listinfo/nouveau
> >
>
_______________________________________________
amd-gfx mailing list
amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx
^ permalink raw reply [flat|nested] 81+ messages in thread
* Re: [PATCH 1/3] drm/radeon: remove AGP support
2020-05-12 21:12 ` Alex Deucher
(?)
@ 2020-05-13 7:46 ` Christian König
-1 siblings, 0 replies; 81+ messages in thread
From: Christian König @ 2020-05-13 7:46 UTC (permalink / raw)
To: Alex Deucher, Roy Spliet
Cc: nouveau, Michel Dänzer, amd-gfx list, Maling list - DRI developers
Am 12.05.20 um 23:12 schrieb Alex Deucher:
> On Tue, May 12, 2020 at 4:52 PM Roy Spliet <nouveau@spliet.org> wrote:
>> Op 12-05-2020 om 14:36 schreef Alex Deucher:
>>> On Tue, May 12, 2020 at 4:16 AM Michel Dänzer <michel@daenzer.net> wrote:
>>>> On 2020-05-11 10:12 p.m., Alex Deucher wrote:
>>>>> On Mon, May 11, 2020 at 1:17 PM Christian König
>>>>> <ckoenig.leichtzumerken@gmail.com> wrote:
>>>>>> AGP is deprecated for 10+ years now and not used any more on modern hardware.
>>>>>>
>>>>>> Old hardware should continue to work in PCI mode.
>>>>> Might want to clarify that there is no loss of functionality here.
>>>>> Something like:
>>>>>
>>>>> "There is no loss of functionality here. GPUs will continue to
>>>>> function. This just drops the use of the AGP MMU in the chipset in
>>>>> favor of the MMU on the device which has proven to be much more
>>>>> reliable. Due to its unreliability, AGP support has been disabled on
>>>>> PowerPC for years already so there is no change on PowerPC."
>>>> There's a difference between something being disabled by default or not
>>>> being available at all. We may decide it's worth it anyway, but let's do
>>>> it based on facts.
>>>>
>>> I didn't mean to imply that AGP GART support was already removed. But
>>> for the vast majority of users the end result is the same. If you
>>> knew enough re-enable AGP GART, you probably wouldn't have been as
>>> confused about what this patch set does either. To reiterate, this
>>> patch set does not remove support for AGP cards, it only removes the
>>> support for AGP GART. The cards will still be functional using the
>>> device GART. There may be performance tradeoffs there in some cases.
>> I'll volunteer to be the one asking: how big is this performance
>> difference? Have any benchmarks been run before and after removal of AGP
>> GART code on affected nouveau/radeon systems? Or is this code being
>> dropped _just_ because it's cumbersome, with no regard for metrics that
>> determine the value of AGP GART support?
>>
> I don't think anyone has any solid numbers, just anecdotal from
> memory. I certainly don't have any functional AGP systems at this
> point. It's mostly just cumbersome and would allow us to clean ttm
> and probably improve stability at the same time. At least on the
> radeon side, the only native AGP cards were r1xx, r2xx, and some of
> the early r3xx boards. Once we switched to pcie mid-way through r3xx,
> everything was native pcie and the AGP cards used a pcie to AGP bridge
> chip so they had a decent on chip MMU. Those older cards topped out
> at maybe 32 or 64 MB of vram, so they are going to be hard pressed to
> deal with modern desktops anyway. No idea what sort of GART
> capabilities NV AGP hardware at this time had.
I could only test with an old x86 Mac and an r3xx generation hw and in
this case making the switch didn't had any noticeable effect at all.
But I didn't do more than playing around with the desktop effects and
playing a video.
I do have a PC x86 AGP board lying around somewhere here, going top give
that one a try a well.
Christian.
>
> Alex
>
>> Roy
>>
>>> Alex
>>> _______________________________________________
>>> Nouveau mailing list
>>> Nouveau@lists.freedesktop.org
>>> https://lists.freedesktop.org/mailman/listinfo/nouveau
>>>
_______________________________________________
Nouveau mailing list
Nouveau@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/nouveau
^ permalink raw reply [flat|nested] 81+ messages in thread
* Re: [Nouveau] [PATCH 1/3] drm/radeon: remove AGP support
@ 2020-05-13 7:46 ` Christian König
0 siblings, 0 replies; 81+ messages in thread
From: Christian König @ 2020-05-13 7:46 UTC (permalink / raw)
To: Alex Deucher, Roy Spliet
Cc: nouveau, Michel Dänzer, amd-gfx list, Maling list - DRI developers
Am 12.05.20 um 23:12 schrieb Alex Deucher:
> On Tue, May 12, 2020 at 4:52 PM Roy Spliet <nouveau@spliet.org> wrote:
>> Op 12-05-2020 om 14:36 schreef Alex Deucher:
>>> On Tue, May 12, 2020 at 4:16 AM Michel Dänzer <michel@daenzer.net> wrote:
>>>> On 2020-05-11 10:12 p.m., Alex Deucher wrote:
>>>>> On Mon, May 11, 2020 at 1:17 PM Christian König
>>>>> <ckoenig.leichtzumerken@gmail.com> wrote:
>>>>>> AGP is deprecated for 10+ years now and not used any more on modern hardware.
>>>>>>
>>>>>> Old hardware should continue to work in PCI mode.
>>>>> Might want to clarify that there is no loss of functionality here.
>>>>> Something like:
>>>>>
>>>>> "There is no loss of functionality here. GPUs will continue to
>>>>> function. This just drops the use of the AGP MMU in the chipset in
>>>>> favor of the MMU on the device which has proven to be much more
>>>>> reliable. Due to its unreliability, AGP support has been disabled on
>>>>> PowerPC for years already so there is no change on PowerPC."
>>>> There's a difference between something being disabled by default or not
>>>> being available at all. We may decide it's worth it anyway, but let's do
>>>> it based on facts.
>>>>
>>> I didn't mean to imply that AGP GART support was already removed. But
>>> for the vast majority of users the end result is the same. If you
>>> knew enough re-enable AGP GART, you probably wouldn't have been as
>>> confused about what this patch set does either. To reiterate, this
>>> patch set does not remove support for AGP cards, it only removes the
>>> support for AGP GART. The cards will still be functional using the
>>> device GART. There may be performance tradeoffs there in some cases.
>> I'll volunteer to be the one asking: how big is this performance
>> difference? Have any benchmarks been run before and after removal of AGP
>> GART code on affected nouveau/radeon systems? Or is this code being
>> dropped _just_ because it's cumbersome, with no regard for metrics that
>> determine the value of AGP GART support?
>>
> I don't think anyone has any solid numbers, just anecdotal from
> memory. I certainly don't have any functional AGP systems at this
> point. It's mostly just cumbersome and would allow us to clean ttm
> and probably improve stability at the same time. At least on the
> radeon side, the only native AGP cards were r1xx, r2xx, and some of
> the early r3xx boards. Once we switched to pcie mid-way through r3xx,
> everything was native pcie and the AGP cards used a pcie to AGP bridge
> chip so they had a decent on chip MMU. Those older cards topped out
> at maybe 32 or 64 MB of vram, so they are going to be hard pressed to
> deal with modern desktops anyway. No idea what sort of GART
> capabilities NV AGP hardware at this time had.
I could only test with an old x86 Mac and an r3xx generation hw and in
this case making the switch didn't had any noticeable effect at all.
But I didn't do more than playing around with the desktop effects and
playing a video.
I do have a PC x86 AGP board lying around somewhere here, going top give
that one a try a well.
Christian.
>
> Alex
>
>> Roy
>>
>>> Alex
>>> _______________________________________________
>>> Nouveau mailing list
>>> Nouveau@lists.freedesktop.org
>>> https://lists.freedesktop.org/mailman/listinfo/nouveau
>>>
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 81+ messages in thread
* Re: [Nouveau] [PATCH 1/3] drm/radeon: remove AGP support
@ 2020-05-13 7:46 ` Christian König
0 siblings, 0 replies; 81+ messages in thread
From: Christian König @ 2020-05-13 7:46 UTC (permalink / raw)
To: Alex Deucher, Roy Spliet
Cc: nouveau, Michel Dänzer, amd-gfx list, Maling list - DRI developers
Am 12.05.20 um 23:12 schrieb Alex Deucher:
> On Tue, May 12, 2020 at 4:52 PM Roy Spliet <nouveau@spliet.org> wrote:
>> Op 12-05-2020 om 14:36 schreef Alex Deucher:
>>> On Tue, May 12, 2020 at 4:16 AM Michel Dänzer <michel@daenzer.net> wrote:
>>>> On 2020-05-11 10:12 p.m., Alex Deucher wrote:
>>>>> On Mon, May 11, 2020 at 1:17 PM Christian König
>>>>> <ckoenig.leichtzumerken@gmail.com> wrote:
>>>>>> AGP is deprecated for 10+ years now and not used any more on modern hardware.
>>>>>>
>>>>>> Old hardware should continue to work in PCI mode.
>>>>> Might want to clarify that there is no loss of functionality here.
>>>>> Something like:
>>>>>
>>>>> "There is no loss of functionality here. GPUs will continue to
>>>>> function. This just drops the use of the AGP MMU in the chipset in
>>>>> favor of the MMU on the device which has proven to be much more
>>>>> reliable. Due to its unreliability, AGP support has been disabled on
>>>>> PowerPC for years already so there is no change on PowerPC."
>>>> There's a difference between something being disabled by default or not
>>>> being available at all. We may decide it's worth it anyway, but let's do
>>>> it based on facts.
>>>>
>>> I didn't mean to imply that AGP GART support was already removed. But
>>> for the vast majority of users the end result is the same. If you
>>> knew enough re-enable AGP GART, you probably wouldn't have been as
>>> confused about what this patch set does either. To reiterate, this
>>> patch set does not remove support for AGP cards, it only removes the
>>> support for AGP GART. The cards will still be functional using the
>>> device GART. There may be performance tradeoffs there in some cases.
>> I'll volunteer to be the one asking: how big is this performance
>> difference? Have any benchmarks been run before and after removal of AGP
>> GART code on affected nouveau/radeon systems? Or is this code being
>> dropped _just_ because it's cumbersome, with no regard for metrics that
>> determine the value of AGP GART support?
>>
> I don't think anyone has any solid numbers, just anecdotal from
> memory. I certainly don't have any functional AGP systems at this
> point. It's mostly just cumbersome and would allow us to clean ttm
> and probably improve stability at the same time. At least on the
> radeon side, the only native AGP cards were r1xx, r2xx, and some of
> the early r3xx boards. Once we switched to pcie mid-way through r3xx,
> everything was native pcie and the AGP cards used a pcie to AGP bridge
> chip so they had a decent on chip MMU. Those older cards topped out
> at maybe 32 or 64 MB of vram, so they are going to be hard pressed to
> deal with modern desktops anyway. No idea what sort of GART
> capabilities NV AGP hardware at this time had.
I could only test with an old x86 Mac and an r3xx generation hw and in
this case making the switch didn't had any noticeable effect at all.
But I didn't do more than playing around with the desktop effects and
playing a video.
I do have a PC x86 AGP board lying around somewhere here, going top give
that one a try a well.
Christian.
>
> Alex
>
>> Roy
>>
>>> Alex
>>> _______________________________________________
>>> Nouveau mailing list
>>> Nouveau@lists.freedesktop.org
>>> https://lists.freedesktop.org/mailman/listinfo/nouveau
>>>
_______________________________________________
amd-gfx mailing list
amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx
^ permalink raw reply [flat|nested] 81+ messages in thread
* Re: [PATCH 1/3] drm/radeon: remove AGP support
2020-05-13 7:46 ` Christian König
(?)
@ 2020-05-13 7:52 ` Michel Dänzer
-1 siblings, 0 replies; 81+ messages in thread
From: Michel Dänzer @ 2020-05-13 7:52 UTC (permalink / raw)
To: christian.koenig-5C7GfCeVMHo, Alex Deucher, Roy Spliet
Cc: nouveau, Maling list - DRI developers, amd-gfx list
On 2020-05-13 9:46 a.m., Christian König wrote:
> Am 12.05.20 um 23:12 schrieb Alex Deucher:
>> On Tue, May 12, 2020 at 4:52 PM Roy Spliet <nouveau@spliet.org> wrote:
>>>
>>> I'll volunteer to be the one asking: how big is this performance
>>> difference? Have any benchmarks been run before and after removal of AGP
>>> GART code on affected nouveau/radeon systems? Or is this code being
>>> dropped _just_ because it's cumbersome, with no regard for metrics that
>>> determine the value of AGP GART support?
>>>
>> I don't think anyone has any solid numbers, just anecdotal from
>> memory. I certainly don't have any functional AGP systems at this
>> point. It's mostly just cumbersome and would allow us to clean ttm
>> and probably improve stability at the same time. At least on the
>> radeon side, the only native AGP cards were r1xx, r2xx, and some of
>> the early r3xx boards. Once we switched to pcie mid-way through r3xx,
>> everything was native pcie and the AGP cards used a pcie to AGP bridge
>> chip so they had a decent on chip MMU. Those older cards topped out
>> at maybe 32 or 64 MB of vram, so they are going to be hard pressed to
>> deal with modern desktops anyway. No idea what sort of GART
>> capabilities NV AGP hardware at this time had.
>
> I could only test with an old x86 Mac and an r3xx generation hw and in
> this case making the switch didn't had any noticeable effect at all.
>
> But I didn't do more than playing around with the desktop effects and
> playing a video.
Yeah, that's not enough to see a difference. Try an OpenGL game, or even
just glxgears.
--
Earthling Michel Dänzer | https://redhat.com
Libre software enthusiast | Mesa and X developer
_______________________________________________
Nouveau mailing list
Nouveau@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/nouveau
^ permalink raw reply [flat|nested] 81+ messages in thread
* Re: [Nouveau] [PATCH 1/3] drm/radeon: remove AGP support
@ 2020-05-13 7:52 ` Michel Dänzer
0 siblings, 0 replies; 81+ messages in thread
From: Michel Dänzer @ 2020-05-13 7:52 UTC (permalink / raw)
To: christian.koenig, Alex Deucher, Roy Spliet
Cc: nouveau, Maling list - DRI developers, amd-gfx list
On 2020-05-13 9:46 a.m., Christian König wrote:
> Am 12.05.20 um 23:12 schrieb Alex Deucher:
>> On Tue, May 12, 2020 at 4:52 PM Roy Spliet <nouveau@spliet.org> wrote:
>>>
>>> I'll volunteer to be the one asking: how big is this performance
>>> difference? Have any benchmarks been run before and after removal of AGP
>>> GART code on affected nouveau/radeon systems? Or is this code being
>>> dropped _just_ because it's cumbersome, with no regard for metrics that
>>> determine the value of AGP GART support?
>>>
>> I don't think anyone has any solid numbers, just anecdotal from
>> memory. I certainly don't have any functional AGP systems at this
>> point. It's mostly just cumbersome and would allow us to clean ttm
>> and probably improve stability at the same time. At least on the
>> radeon side, the only native AGP cards were r1xx, r2xx, and some of
>> the early r3xx boards. Once we switched to pcie mid-way through r3xx,
>> everything was native pcie and the AGP cards used a pcie to AGP bridge
>> chip so they had a decent on chip MMU. Those older cards topped out
>> at maybe 32 or 64 MB of vram, so they are going to be hard pressed to
>> deal with modern desktops anyway. No idea what sort of GART
>> capabilities NV AGP hardware at this time had.
>
> I could only test with an old x86 Mac and an r3xx generation hw and in
> this case making the switch didn't had any noticeable effect at all.
>
> But I didn't do more than playing around with the desktop effects and
> playing a video.
Yeah, that's not enough to see a difference. Try an OpenGL game, or even
just glxgears.
--
Earthling Michel Dänzer | https://redhat.com
Libre software enthusiast | Mesa and X developer
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 81+ messages in thread
* Re: [Nouveau] [PATCH 1/3] drm/radeon: remove AGP support
@ 2020-05-13 7:52 ` Michel Dänzer
0 siblings, 0 replies; 81+ messages in thread
From: Michel Dänzer @ 2020-05-13 7:52 UTC (permalink / raw)
To: christian.koenig, Alex Deucher, Roy Spliet
Cc: nouveau, Maling list - DRI developers, amd-gfx list
On 2020-05-13 9:46 a.m., Christian König wrote:
> Am 12.05.20 um 23:12 schrieb Alex Deucher:
>> On Tue, May 12, 2020 at 4:52 PM Roy Spliet <nouveau@spliet.org> wrote:
>>>
>>> I'll volunteer to be the one asking: how big is this performance
>>> difference? Have any benchmarks been run before and after removal of AGP
>>> GART code on affected nouveau/radeon systems? Or is this code being
>>> dropped _just_ because it's cumbersome, with no regard for metrics that
>>> determine the value of AGP GART support?
>>>
>> I don't think anyone has any solid numbers, just anecdotal from
>> memory. I certainly don't have any functional AGP systems at this
>> point. It's mostly just cumbersome and would allow us to clean ttm
>> and probably improve stability at the same time. At least on the
>> radeon side, the only native AGP cards were r1xx, r2xx, and some of
>> the early r3xx boards. Once we switched to pcie mid-way through r3xx,
>> everything was native pcie and the AGP cards used a pcie to AGP bridge
>> chip so they had a decent on chip MMU. Those older cards topped out
>> at maybe 32 or 64 MB of vram, so they are going to be hard pressed to
>> deal with modern desktops anyway. No idea what sort of GART
>> capabilities NV AGP hardware at this time had.
>
> I could only test with an old x86 Mac and an r3xx generation hw and in
> this case making the switch didn't had any noticeable effect at all.
>
> But I didn't do more than playing around with the desktop effects and
> playing a video.
Yeah, that's not enough to see a difference. Try an OpenGL game, or even
just glxgears.
--
Earthling Michel Dänzer | https://redhat.com
Libre software enthusiast | Mesa and X developer
_______________________________________________
amd-gfx mailing list
amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx
^ permalink raw reply [flat|nested] 81+ messages in thread
* Re: [RFC] Remove AGP support from Radeon/Nouveau/TTM
2020-05-12 19:47 ` Alex Deucher
(?)
@ 2020-05-13 9:27 ` Emil Velikov
-1 siblings, 0 replies; 81+ messages in thread
From: Emil Velikov @ 2020-05-13 9:27 UTC (permalink / raw)
To: Alex Deucher
Cc: Christian König, Maling list - DRI developers, amd-gfx list,
nouveau
On Tue, 12 May 2020 at 20:48, Alex Deucher <alexdeucher-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> > >>
> > >> There's some AGP support code in the DRM core. Can some of that declared
> > >> as legacy?
> > >>
> > >> Specifically, what about these AGP-related ioctl calls? Can they be
> > >> declared as legacy? It would appear to me that KMS-based drivers don't
> > >> have to manage AGP by themselves. (?)
> > >
> > > The old drm core AGP code is mainly (only?) for the non-KMS drivers.
> > > E.g., mach64, r128, sis, savage, etc.
> >
> > Exactly my point. There's one drm_agp_init() call left in radeon. The
> > rest of the AGP code is apparently for legacy non-KMS drivers. Should
> > the related ioctl calls be declared as legacy (i.e., listed with
> > DRM_LEGACY_IOCTL_DEF instead of DRM_IOCTL_DEF)? If so, much of the AGP
> > core code could probably be moved behind CONFIG_DRM_LEGACY as well.
>
> Ah, I forgot about drm_agp_init(). I was just thinking the other AGP
> stuff. Yeah, I think we could make it legacy.
>
Fwiw I've got local patches a) removing drm_agp_init() from radeon and
b) making the core drm code legacy only.
Will try to finish them over the weekend and send out.
Even if AGP GART gets dropped the b) patches will be good ;-)
-Emil
^ permalink raw reply [flat|nested] 81+ messages in thread
* Re: [Nouveau] [RFC] Remove AGP support from Radeon/Nouveau/TTM
@ 2020-05-13 9:27 ` Emil Velikov
0 siblings, 0 replies; 81+ messages in thread
From: Emil Velikov @ 2020-05-13 9:27 UTC (permalink / raw)
To: Alex Deucher
Cc: Christian König, Maling list - DRI developers, amd-gfx list,
Thomas Zimmermann, nouveau
On Tue, 12 May 2020 at 20:48, Alex Deucher <alexdeucher@gmail.com> wrote:
> > >>
> > >> There's some AGP support code in the DRM core. Can some of that declared
> > >> as legacy?
> > >>
> > >> Specifically, what about these AGP-related ioctl calls? Can they be
> > >> declared as legacy? It would appear to me that KMS-based drivers don't
> > >> have to manage AGP by themselves. (?)
> > >
> > > The old drm core AGP code is mainly (only?) for the non-KMS drivers.
> > > E.g., mach64, r128, sis, savage, etc.
> >
> > Exactly my point. There's one drm_agp_init() call left in radeon. The
> > rest of the AGP code is apparently for legacy non-KMS drivers. Should
> > the related ioctl calls be declared as legacy (i.e., listed with
> > DRM_LEGACY_IOCTL_DEF instead of DRM_IOCTL_DEF)? If so, much of the AGP
> > core code could probably be moved behind CONFIG_DRM_LEGACY as well.
>
> Ah, I forgot about drm_agp_init(). I was just thinking the other AGP
> stuff. Yeah, I think we could make it legacy.
>
Fwiw I've got local patches a) removing drm_agp_init() from radeon and
b) making the core drm code legacy only.
Will try to finish them over the weekend and send out.
Even if AGP GART gets dropped the b) patches will be good ;-)
-Emil
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 81+ messages in thread
* Re: [Nouveau] [RFC] Remove AGP support from Radeon/Nouveau/TTM
@ 2020-05-13 9:27 ` Emil Velikov
0 siblings, 0 replies; 81+ messages in thread
From: Emil Velikov @ 2020-05-13 9:27 UTC (permalink / raw)
To: Alex Deucher
Cc: Christian König, Maling list - DRI developers, amd-gfx list,
Thomas Zimmermann, nouveau
On Tue, 12 May 2020 at 20:48, Alex Deucher <alexdeucher@gmail.com> wrote:
> > >>
> > >> There's some AGP support code in the DRM core. Can some of that declared
> > >> as legacy?
> > >>
> > >> Specifically, what about these AGP-related ioctl calls? Can they be
> > >> declared as legacy? It would appear to me that KMS-based drivers don't
> > >> have to manage AGP by themselves. (?)
> > >
> > > The old drm core AGP code is mainly (only?) for the non-KMS drivers.
> > > E.g., mach64, r128, sis, savage, etc.
> >
> > Exactly my point. There's one drm_agp_init() call left in radeon. The
> > rest of the AGP code is apparently for legacy non-KMS drivers. Should
> > the related ioctl calls be declared as legacy (i.e., listed with
> > DRM_LEGACY_IOCTL_DEF instead of DRM_IOCTL_DEF)? If so, much of the AGP
> > core code could probably be moved behind CONFIG_DRM_LEGACY as well.
>
> Ah, I forgot about drm_agp_init(). I was just thinking the other AGP
> stuff. Yeah, I think we could make it legacy.
>
Fwiw I've got local patches a) removing drm_agp_init() from radeon and
b) making the core drm code legacy only.
Will try to finish them over the weekend and send out.
Even if AGP GART gets dropped the b) patches will be good ;-)
-Emil
_______________________________________________
amd-gfx mailing list
amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx
^ permalink raw reply [flat|nested] 81+ messages in thread
* Re: [RFC] Remove AGP support from Radeon/Nouveau/TTM
2020-05-11 17:17 ` Christian König
(?)
@ 2020-05-13 11:00 ` Thomas Zimmermann
-1 siblings, 0 replies; 81+ messages in thread
From: Thomas Zimmermann @ 2020-05-13 11:00 UTC (permalink / raw)
To: Christian König, dri-devel-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW,
amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW,
nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW
[-- Attachment #1.1.1: Type: text/plain, Size: 2079 bytes --]
Hi
Am 11.05.20 um 19:17 schrieb Christian König:
> Hi guys,
>
> Well let's face it AGP is a total headache to maintain and dead for at least 10+ years.
>
> We have a lot of x86 specific stuff in the architecture independent graphics memory management to get the caching right, abusing the DMA API on multiple occasions, need to distinct between AGP and driver specific page tables etc etc...
>
> So the idea here is to just go ahead and remove the support from Radeon and Nouveau and then drop the necessary code from TTM.
>
> For Radeon this means that we just switch over to the driver specific page tables and everything should more or less continue to work.
>
> For Nouveau I'm not 100% sure, but from the code it of hand looks like we can do it similar to Radeon.
>
> Please comment what you think about this.
It's probably not much of a problem in practice.
I guess everyone who plays 3d games has upgraded to something newer.
Wrt desktops, I found that some components of modern desktops (KDE,
Gnome) now have a hard requirement on SSE2. [1][2] But AGP is mostly
used in old 32-bit systems, which don't have SSE2.* So remaining users
of the GART functionality probably don't use any of these desktops.
The simpler WMs are usually usable with only little VRAM. At least they
should not be hit by any performance penalty.
Best regards
Thomas
[1] https://bugzilla.opensuse.org/show_bug.cgi?id=1162283
[2] https://bugzilla.opensuse.org/show_bug.cgi?id=1077870
* First-generation Athlon 64 have SSE2 and AGP support. But there are
few systems. Around that time AGP was replaced by PCIe.
>
> Regards,
> Christian.
>
>
> _______________________________________________
> Nouveau mailing list
> Nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
> https://lists.freedesktop.org/mailman/listinfo/nouveau
>
--
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Maxfeldstr. 5, 90409 Nürnberg, Germany
(HRB 36809, AG Nürnberg)
Geschäftsführer: Felix Imendörffer
[-- Attachment #1.2: OpenPGP digital signature --]
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[-- Attachment #2: Type: text/plain, Size: 182 bytes --]
_______________________________________________
Nouveau mailing list
Nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
https://lists.freedesktop.org/mailman/listinfo/nouveau
^ permalink raw reply [flat|nested] 81+ messages in thread
* Re: [Nouveau] [RFC] Remove AGP support from Radeon/Nouveau/TTM
@ 2020-05-13 11:00 ` Thomas Zimmermann
0 siblings, 0 replies; 81+ messages in thread
From: Thomas Zimmermann @ 2020-05-13 11:00 UTC (permalink / raw)
To: Christian König, dri-devel, amd-gfx, nouveau
[-- Attachment #1.1.1: Type: text/plain, Size: 2051 bytes --]
Hi
Am 11.05.20 um 19:17 schrieb Christian König:
> Hi guys,
>
> Well let's face it AGP is a total headache to maintain and dead for at least 10+ years.
>
> We have a lot of x86 specific stuff in the architecture independent graphics memory management to get the caching right, abusing the DMA API on multiple occasions, need to distinct between AGP and driver specific page tables etc etc...
>
> So the idea here is to just go ahead and remove the support from Radeon and Nouveau and then drop the necessary code from TTM.
>
> For Radeon this means that we just switch over to the driver specific page tables and everything should more or less continue to work.
>
> For Nouveau I'm not 100% sure, but from the code it of hand looks like we can do it similar to Radeon.
>
> Please comment what you think about this.
It's probably not much of a problem in practice.
I guess everyone who plays 3d games has upgraded to something newer.
Wrt desktops, I found that some components of modern desktops (KDE,
Gnome) now have a hard requirement on SSE2. [1][2] But AGP is mostly
used in old 32-bit systems, which don't have SSE2.* So remaining users
of the GART functionality probably don't use any of these desktops.
The simpler WMs are usually usable with only little VRAM. At least they
should not be hit by any performance penalty.
Best regards
Thomas
[1] https://bugzilla.opensuse.org/show_bug.cgi?id=1162283
[2] https://bugzilla.opensuse.org/show_bug.cgi?id=1077870
* First-generation Athlon 64 have SSE2 and AGP support. But there are
few systems. Around that time AGP was replaced by PCIe.
>
> Regards,
> Christian.
>
>
> _______________________________________________
> Nouveau mailing list
> Nouveau@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/nouveau
>
--
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Maxfeldstr. 5, 90409 Nürnberg, Germany
(HRB 36809, AG Nürnberg)
Geschäftsführer: Felix Imendörffer
[-- Attachment #1.2: OpenPGP digital signature --]
[-- Type: application/pgp-signature, Size: 488 bytes --]
[-- Attachment #2: Type: text/plain, Size: 160 bytes --]
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 81+ messages in thread
* Re: [Nouveau] [RFC] Remove AGP support from Radeon/Nouveau/TTM
@ 2020-05-13 11:00 ` Thomas Zimmermann
0 siblings, 0 replies; 81+ messages in thread
From: Thomas Zimmermann @ 2020-05-13 11:00 UTC (permalink / raw)
To: Christian König, dri-devel, amd-gfx, nouveau
[-- Attachment #1.1.1: Type: text/plain, Size: 2051 bytes --]
Hi
Am 11.05.20 um 19:17 schrieb Christian König:
> Hi guys,
>
> Well let's face it AGP is a total headache to maintain and dead for at least 10+ years.
>
> We have a lot of x86 specific stuff in the architecture independent graphics memory management to get the caching right, abusing the DMA API on multiple occasions, need to distinct between AGP and driver specific page tables etc etc...
>
> So the idea here is to just go ahead and remove the support from Radeon and Nouveau and then drop the necessary code from TTM.
>
> For Radeon this means that we just switch over to the driver specific page tables and everything should more or less continue to work.
>
> For Nouveau I'm not 100% sure, but from the code it of hand looks like we can do it similar to Radeon.
>
> Please comment what you think about this.
It's probably not much of a problem in practice.
I guess everyone who plays 3d games has upgraded to something newer.
Wrt desktops, I found that some components of modern desktops (KDE,
Gnome) now have a hard requirement on SSE2. [1][2] But AGP is mostly
used in old 32-bit systems, which don't have SSE2.* So remaining users
of the GART functionality probably don't use any of these desktops.
The simpler WMs are usually usable with only little VRAM. At least they
should not be hit by any performance penalty.
Best regards
Thomas
[1] https://bugzilla.opensuse.org/show_bug.cgi?id=1162283
[2] https://bugzilla.opensuse.org/show_bug.cgi?id=1077870
* First-generation Athlon 64 have SSE2 and AGP support. But there are
few systems. Around that time AGP was replaced by PCIe.
>
> Regards,
> Christian.
>
>
> _______________________________________________
> Nouveau mailing list
> Nouveau@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/nouveau
>
--
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Maxfeldstr. 5, 90409 Nürnberg, Germany
(HRB 36809, AG Nürnberg)
Geschäftsführer: Felix Imendörffer
[-- Attachment #1.2: OpenPGP digital signature --]
[-- Type: application/pgp-signature, Size: 488 bytes --]
[-- Attachment #2: Type: text/plain, Size: 154 bytes --]
_______________________________________________
amd-gfx mailing list
amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx
^ permalink raw reply [flat|nested] 81+ messages in thread
* Re: [Nouveau] [RFC] Remove AGP support from Radeon/Nouveau/TTM
2020-05-13 9:27 ` Emil Velikov
(?)
@ 2020-05-13 11:03 ` Thomas Zimmermann
-1 siblings, 0 replies; 81+ messages in thread
From: Thomas Zimmermann @ 2020-05-13 11:03 UTC (permalink / raw)
To: Emil Velikov, Alex Deucher
Cc: Christian König, Maling list - DRI developers, amd-gfx list,
nouveau
[-- Attachment #1.1.1: Type: text/plain, Size: 1750 bytes --]
Hi
Am 13.05.20 um 11:27 schrieb Emil Velikov:
> On Tue, 12 May 2020 at 20:48, Alex Deucher <alexdeucher-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>
>>>>>
>>>>> There's some AGP support code in the DRM core. Can some of that declared
>>>>> as legacy?
>>>>>
>>>>> Specifically, what about these AGP-related ioctl calls? Can they be
>>>>> declared as legacy? It would appear to me that KMS-based drivers don't
>>>>> have to manage AGP by themselves. (?)
>>>>
>>>> The old drm core AGP code is mainly (only?) for the non-KMS drivers.
>>>> E.g., mach64, r128, sis, savage, etc.
>>>
>>> Exactly my point. There's one drm_agp_init() call left in radeon. The
>>> rest of the AGP code is apparently for legacy non-KMS drivers. Should
>>> the related ioctl calls be declared as legacy (i.e., listed with
>>> DRM_LEGACY_IOCTL_DEF instead of DRM_IOCTL_DEF)? If so, much of the AGP
>>> core code could probably be moved behind CONFIG_DRM_LEGACY as well.
>>
>> Ah, I forgot about drm_agp_init(). I was just thinking the other AGP
>> stuff. Yeah, I think we could make it legacy.
>>
> Fwiw I've got local patches a) removing drm_agp_init() from radeon and
> b) making the core drm code legacy only.
> Will try to finish them over the weekend and send out.
>
> Even if AGP GART gets dropped the b) patches will be good ;-)
Fantastic! Please see one of my other comments in this thread. There's
still drm_agp_init() somewhere in radeon_drv.c. So patch a) might still
be useful.
Best regards
Thomas
>
> -Emil
>
--
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Maxfeldstr. 5, 90409 Nürnberg, Germany
(HRB 36809, AG Nürnberg)
Geschäftsführer: Felix Imendörffer
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_______________________________________________
amd-gfx mailing list
amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx
^ permalink raw reply [flat|nested] 81+ messages in thread
* Re: [Nouveau] [RFC] Remove AGP support from Radeon/Nouveau/TTM
@ 2020-05-13 11:03 ` Thomas Zimmermann
0 siblings, 0 replies; 81+ messages in thread
From: Thomas Zimmermann @ 2020-05-13 11:03 UTC (permalink / raw)
To: Emil Velikov, Alex Deucher
Cc: Christian König, Maling list - DRI developers, amd-gfx list,
nouveau
[-- Attachment #1.1.1: Type: text/plain, Size: 1720 bytes --]
Hi
Am 13.05.20 um 11:27 schrieb Emil Velikov:
> On Tue, 12 May 2020 at 20:48, Alex Deucher <alexdeucher@gmail.com> wrote:
>
>>>>>
>>>>> There's some AGP support code in the DRM core. Can some of that declared
>>>>> as legacy?
>>>>>
>>>>> Specifically, what about these AGP-related ioctl calls? Can they be
>>>>> declared as legacy? It would appear to me that KMS-based drivers don't
>>>>> have to manage AGP by themselves. (?)
>>>>
>>>> The old drm core AGP code is mainly (only?) for the non-KMS drivers.
>>>> E.g., mach64, r128, sis, savage, etc.
>>>
>>> Exactly my point. There's one drm_agp_init() call left in radeon. The
>>> rest of the AGP code is apparently for legacy non-KMS drivers. Should
>>> the related ioctl calls be declared as legacy (i.e., listed with
>>> DRM_LEGACY_IOCTL_DEF instead of DRM_IOCTL_DEF)? If so, much of the AGP
>>> core code could probably be moved behind CONFIG_DRM_LEGACY as well.
>>
>> Ah, I forgot about drm_agp_init(). I was just thinking the other AGP
>> stuff. Yeah, I think we could make it legacy.
>>
> Fwiw I've got local patches a) removing drm_agp_init() from radeon and
> b) making the core drm code legacy only.
> Will try to finish them over the weekend and send out.
>
> Even if AGP GART gets dropped the b) patches will be good ;-)
Fantastic! Please see one of my other comments in this thread. There's
still drm_agp_init() somewhere in radeon_drv.c. So patch a) might still
be useful.
Best regards
Thomas
>
> -Emil
>
--
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Maxfeldstr. 5, 90409 Nürnberg, Germany
(HRB 36809, AG Nürnberg)
Geschäftsführer: Felix Imendörffer
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[-- Type: application/pgp-signature, Size: 488 bytes --]
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_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 81+ messages in thread
* Re: [Nouveau] [RFC] Remove AGP support from Radeon/Nouveau/TTM
@ 2020-05-13 11:03 ` Thomas Zimmermann
0 siblings, 0 replies; 81+ messages in thread
From: Thomas Zimmermann @ 2020-05-13 11:03 UTC (permalink / raw)
To: Emil Velikov, Alex Deucher
Cc: Christian König, Maling list - DRI developers, amd-gfx list,
nouveau
[-- Attachment #1.1.1: Type: text/plain, Size: 1720 bytes --]
Hi
Am 13.05.20 um 11:27 schrieb Emil Velikov:
> On Tue, 12 May 2020 at 20:48, Alex Deucher <alexdeucher@gmail.com> wrote:
>
>>>>>
>>>>> There's some AGP support code in the DRM core. Can some of that declared
>>>>> as legacy?
>>>>>
>>>>> Specifically, what about these AGP-related ioctl calls? Can they be
>>>>> declared as legacy? It would appear to me that KMS-based drivers don't
>>>>> have to manage AGP by themselves. (?)
>>>>
>>>> The old drm core AGP code is mainly (only?) for the non-KMS drivers.
>>>> E.g., mach64, r128, sis, savage, etc.
>>>
>>> Exactly my point. There's one drm_agp_init() call left in radeon. The
>>> rest of the AGP code is apparently for legacy non-KMS drivers. Should
>>> the related ioctl calls be declared as legacy (i.e., listed with
>>> DRM_LEGACY_IOCTL_DEF instead of DRM_IOCTL_DEF)? If so, much of the AGP
>>> core code could probably be moved behind CONFIG_DRM_LEGACY as well.
>>
>> Ah, I forgot about drm_agp_init(). I was just thinking the other AGP
>> stuff. Yeah, I think we could make it legacy.
>>
> Fwiw I've got local patches a) removing drm_agp_init() from radeon and
> b) making the core drm code legacy only.
> Will try to finish them over the weekend and send out.
>
> Even if AGP GART gets dropped the b) patches will be good ;-)
Fantastic! Please see one of my other comments in this thread. There's
still drm_agp_init() somewhere in radeon_drv.c. So patch a) might still
be useful.
Best regards
Thomas
>
> -Emil
>
--
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Maxfeldstr. 5, 90409 Nürnberg, Germany
(HRB 36809, AG Nürnberg)
Geschäftsführer: Felix Imendörffer
[-- Attachment #1.2: OpenPGP digital signature --]
[-- Type: application/pgp-signature, Size: 488 bytes --]
[-- Attachment #2: Type: text/plain, Size: 154 bytes --]
_______________________________________________
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https://lists.freedesktop.org/mailman/listinfo/amd-gfx
^ permalink raw reply [flat|nested] 81+ messages in thread
end of thread, other threads:[~2020-05-13 11:03 UTC | newest]
Thread overview: 81+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2020-05-11 17:17 [RFC] Remove AGP support from Radeon/Nouveau/TTM Christian König
2020-05-11 17:17 ` Christian König
2020-05-11 17:17 ` Christian König
[not found] ` <20200511171722.96576-1-christian.koenig-5C7GfCeVMHo@public.gmane.org>
2020-05-11 17:17 ` [PATCH 1/3] drm/radeon: remove AGP support Christian König
2020-05-11 17:17 ` Christian König
2020-05-11 17:17 ` Christian König
[not found] ` <20200511171722.96576-2-christian.koenig-5C7GfCeVMHo@public.gmane.org>
2020-05-11 20:12 ` Alex Deucher
2020-05-11 20:12 ` Alex Deucher
2020-05-11 20:12 ` Alex Deucher
[not found] ` <CADnq5_MyO_L+1w69qDLzhg34W6Qer-uSRR2tb7-2uXLC_6PXSg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2020-05-12 8:16 ` Michel Dänzer
2020-05-12 8:16 ` Michel Dänzer
2020-05-12 8:16 ` Michel Dänzer
[not found] ` <ba0b1ab7-3078-a6f2-41cd-326ca21ee99f-otUistvHUpPR7s880joybQ@public.gmane.org>
2020-05-12 13:36 ` Alex Deucher
2020-05-12 13:36 ` Alex Deucher
2020-05-12 13:36 ` Alex Deucher
[not found] ` <CADnq5_MdbJUXs7wbG=HCOKj4Vp_NmLkcJng=EXynSXPe9gsyOQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2020-05-12 20:52 ` Roy Spliet
2020-05-12 20:52 ` [Nouveau] " Roy Spliet
2020-05-12 20:52 ` Roy Spliet
[not found] ` <777c08d1-3ac3-16ca-0222-e2d62c281e50-NQbd8FSOZ1kdnm+yROfE0A@public.gmane.org>
2020-05-12 21:12 ` Alex Deucher
2020-05-12 21:12 ` Alex Deucher
2020-05-12 21:12 ` Alex Deucher
[not found] ` <CADnq5_NK6ziShvkDug5xGHm7oZTf9qEu41gOxvNANQHFD2a-qQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2020-05-13 7:46 ` Christian König
2020-05-13 7:46 ` [Nouveau] " Christian König
2020-05-13 7:46 ` Christian König
[not found] ` <5c3da9d3-8b77-e97f-28a2-e1083a53a1d7-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2020-05-13 7:52 ` Michel Dänzer
2020-05-13 7:52 ` [Nouveau] " Michel Dänzer
2020-05-13 7:52 ` Michel Dänzer
2020-05-12 18:20 ` Thomas Zimmermann
2020-05-12 18:20 ` Thomas Zimmermann
2020-05-12 18:20 ` Thomas Zimmermann
[not found] ` <d0314d28-7ef3-e158-ee05-4802e16c0ecc-l3A5Bk7waGM@public.gmane.org>
2020-05-12 18:29 ` Alex Deucher
2020-05-12 18:29 ` Alex Deucher
2020-05-12 18:29 ` Alex Deucher
2020-05-11 17:17 ` [PATCH 2/3] drm/nouveau: " Christian König
2020-05-11 17:17 ` Christian König
2020-05-11 17:17 ` Christian König
2020-05-11 17:17 ` [PATCH 3/3] drm/ttm: " Christian König
2020-05-11 17:17 ` Christian König
2020-05-11 17:17 ` Christian König
2020-05-11 20:14 ` [RFC] Remove AGP support from Radeon/Nouveau/TTM Al Dunsmuir
2020-05-11 20:14 ` Al Dunsmuir
2020-05-11 20:14 ` Al Dunsmuir
[not found] ` <1815605280.20200511161440-rieW9WUcm8FFJ04o6PK0Fg@public.gmane.org>
2020-05-11 20:27 ` Alex Deucher
2020-05-11 20:27 ` Alex Deucher
2020-05-11 20:27 ` Alex Deucher
[not found] ` <CADnq5_MYPcAoWzCcBkJAkd858gCVbJpCJobiwH_BBbwgEdx5rA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2020-05-11 20:43 ` Dave Airlie
2020-05-11 20:43 ` Dave Airlie
2020-05-11 20:43 ` Dave Airlie
[not found] ` <CAPM=9tysbcgQ-KR8+icQ=3e6+SECxkwHdVpP8=w0Pmh9ML_+Lw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2020-05-11 20:56 ` Al Dunsmuir
2020-05-11 20:56 ` Al Dunsmuir
2020-05-11 20:56 ` Al Dunsmuir
[not found] ` <1266714942.20200511165648-rieW9WUcm8FFJ04o6PK0Fg@public.gmane.org>
2020-05-12 8:11 ` Christian König
2020-05-12 8:11 ` Christian König
2020-05-12 8:11 ` Christian König
2020-05-11 20:59 ` Emil Velikov
2020-05-11 20:59 ` Emil Velikov
2020-05-11 20:59 ` Emil Velikov
2020-05-11 20:46 ` Al Dunsmuir
2020-05-11 20:46 ` Al Dunsmuir
2020-05-11 20:46 ` Al Dunsmuir
2020-05-12 18:29 ` [Nouveau] " Thomas Zimmermann
2020-05-12 18:29 ` Thomas Zimmermann
2020-05-12 18:29 ` Thomas Zimmermann
[not found] ` <1f7b3774-8724-7653-3481-9429ae991acc-l3A5Bk7waGM@public.gmane.org>
2020-05-12 18:32 ` Alex Deucher
2020-05-12 18:32 ` Alex Deucher
2020-05-12 18:32 ` Alex Deucher
[not found] ` <CADnq5_OnoH3YhhEjD7eOrBPPqxQZ+S1cKWRBaUMVnA0V=E0i+Q-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2020-05-12 19:10 ` Thomas Zimmermann
2020-05-12 19:10 ` Thomas Zimmermann
2020-05-12 19:10 ` Thomas Zimmermann
[not found] ` <1706b8de-bf4a-e9e1-2163-e782d1c2cc19-l3A5Bk7waGM@public.gmane.org>
2020-05-12 19:47 ` Alex Deucher
2020-05-12 19:47 ` Alex Deucher
2020-05-12 19:47 ` Alex Deucher
[not found] ` <CADnq5_P6sWt=0zkRm6ySmOb1zr-7VTwLwx+ecEKg-ntJTRfY5A-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2020-05-13 9:27 ` Emil Velikov
2020-05-13 9:27 ` [Nouveau] " Emil Velikov
2020-05-13 9:27 ` Emil Velikov
[not found] ` <CACvgo53k72T+-WUHr2XEwcgMFh-JonQME-He5Pc6hfOk3pr+7A-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2020-05-13 11:03 ` Thomas Zimmermann
2020-05-13 11:03 ` Thomas Zimmermann
2020-05-13 11:03 ` Thomas Zimmermann
2020-05-13 11:00 ` Thomas Zimmermann
2020-05-13 11:00 ` [Nouveau] " Thomas Zimmermann
2020-05-13 11:00 ` Thomas Zimmermann
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