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* [PATCH AUTOSEL 6.1 22/38] drm/nouveau/devinit/tu102-: wait for GFW_BOOT_PROGRESS == COMPLETED
       [not found] <20230209111459.1891941-1-sashal@kernel.org>
@ 2023-02-09 11:14 ` Sasha Levin
  2023-02-09 11:14 ` [PATCH AUTOSEL 6.1 29/38] drm/amd/display: Add missing brackets in calculation Sasha Levin
                   ` (6 subsequent siblings)
  7 siblings, 0 replies; 8+ messages in thread
From: Sasha Levin @ 2023-02-09 11:14 UTC (permalink / raw)
  To: linux-kernel, stable; +Cc: Sasha Levin, kherbst, nouveau, dri-devel, Ben Skeggs

From: Ben Skeggs <bskeggs@redhat.com>

[ Upstream commit d22915d22ded21fd5b24b60d174775789f173997 ]

Starting from Turing, the driver is no longer responsible for initiating
DEVINIT when required as the GPU started loading a FW image from ROM and
executing DEVINIT itself after power-on.

However - we apparently still need to wait for it to complete.

This should correct some issues with runpm on some systems, where we get
control of the HW before it's been fully reinitialised after resume from
suspend.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Signed-off-by: Lyude Paul <lyude@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230130223715.1831509-1-bskeggs@redhat.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../drm/nouveau/nvkm/subdev/devinit/tu102.c   | 23 +++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/devinit/tu102.c b/drivers/gpu/drm/nouveau/nvkm/subdev/devinit/tu102.c
index 634f64f88fc8b..81a1ad2c88a7e 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/devinit/tu102.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/devinit/tu102.c
@@ -65,10 +65,33 @@ tu102_devinit_pll_set(struct nvkm_devinit *init, u32 type, u32 freq)
 	return ret;
 }
 
+static int
+tu102_devinit_wait(struct nvkm_device *device)
+{
+	unsigned timeout = 50 + 2000;
+
+	do {
+		if (nvkm_rd32(device, 0x118128) & 0x00000001) {
+			if ((nvkm_rd32(device, 0x118234) & 0x000000ff) == 0xff)
+				return 0;
+		}
+
+		usleep_range(1000, 2000);
+	} while (timeout--);
+
+	return -ETIMEDOUT;
+}
+
 int
 tu102_devinit_post(struct nvkm_devinit *base, bool post)
 {
 	struct nv50_devinit *init = nv50_devinit(base);
+	int ret;
+
+	ret = tu102_devinit_wait(init->base.subdev.device);
+	if (ret)
+		return ret;
+
 	gm200_devinit_preos(init, post);
 	return 0;
 }
-- 
2.39.0


^ permalink raw reply related	[flat|nested] 8+ messages in thread

* [PATCH AUTOSEL 6.1 29/38] drm/amd/display: Add missing brackets in calculation
       [not found] <20230209111459.1891941-1-sashal@kernel.org>
  2023-02-09 11:14 ` [PATCH AUTOSEL 6.1 22/38] drm/nouveau/devinit/tu102-: wait for GFW_BOOT_PROGRESS == COMPLETED Sasha Levin
@ 2023-02-09 11:14 ` Sasha Levin
  2023-02-09 11:14 ` [PATCH AUTOSEL 6.1 30/38] drm/amd/display: Adjust downscaling limits for dcn314 Sasha Levin
                   ` (5 subsequent siblings)
  7 siblings, 0 replies; 8+ messages in thread
From: Sasha Levin @ 2023-02-09 11:14 UTC (permalink / raw)
  To: linux-kernel, stable
  Cc: Sasha Levin, Daniel Miess, Charlene.Liu, Alex Hung, Xinhui.Pan,
	Rodrigo.Siqueira, roman.li, amd-gfx, christian.koenig, nathan,
	sunpeng.li, Daniel Wheeler, dri-devel, Alex Deucher,
	nicholas.kazlauskas, Pavle.Kotarac

From: Daniel Miess <Daniel.Miess@amd.com>

[ Upstream commit ea062fd28f922cb118bfb33229f405b81aff7781 ]

[Why]
Brackets missing in the calculation for MIN_DST_Y_NEXT_START

[How]
Add missing brackets for this calculation

Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com>
Acked-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Daniel Miess <Daniel.Miess@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../gpu/drm/amd/display/dc/dml/dcn314/display_mode_vba_314.c    | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn314/display_mode_vba_314.c b/drivers/gpu/drm/amd/display/dc/dml/dcn314/display_mode_vba_314.c
index 0d12fd079cd61..3afd3c80e6da8 100644
--- a/drivers/gpu/drm/amd/display/dc/dml/dcn314/display_mode_vba_314.c
+++ b/drivers/gpu/drm/amd/display/dc/dml/dcn314/display_mode_vba_314.c
@@ -3184,7 +3184,7 @@ static void DISPCLKDPPCLKDCFCLKDeepSleepPrefetchParametersWatermarksAndPerforman
 		} else {
 			v->MIN_DST_Y_NEXT_START[k] = v->VTotal[k] - v->VFrontPorch[k] + v->VTotal[k] - v->VActive[k] - v->VStartup[k];
 		}
-		v->MIN_DST_Y_NEXT_START[k] += dml_floor(4.0 * v->TSetup[k] / (double)v->HTotal[k] / v->PixelClock[k], 1.0) / 4.0;
+		v->MIN_DST_Y_NEXT_START[k] += dml_floor(4.0 * v->TSetup[k] / ((double)v->HTotal[k] / v->PixelClock[k]), 1.0) / 4.0;
 		if (((v->VUpdateOffsetPix[k] + v->VUpdateWidthPix[k] + v->VReadyOffsetPix[k]) / v->HTotal[k])
 				<= (isInterlaceTiming ?
 						dml_floor((v->VTotal[k] - v->VActive[k] - v->VFrontPorch[k] - v->VStartup[k]) / 2.0, 1.0) :
-- 
2.39.0


^ permalink raw reply related	[flat|nested] 8+ messages in thread

* [PATCH AUTOSEL 6.1 30/38] drm/amd/display: Adjust downscaling limits for dcn314
       [not found] <20230209111459.1891941-1-sashal@kernel.org>
  2023-02-09 11:14 ` [PATCH AUTOSEL 6.1 22/38] drm/nouveau/devinit/tu102-: wait for GFW_BOOT_PROGRESS == COMPLETED Sasha Levin
  2023-02-09 11:14 ` [PATCH AUTOSEL 6.1 29/38] drm/amd/display: Add missing brackets in calculation Sasha Levin
@ 2023-02-09 11:14 ` Sasha Levin
  2023-02-09 11:14 ` [PATCH AUTOSEL 6.1 31/38] drm/amd/display: Unassign does_plane_fit_in_mall function from dcn3.2 Sasha Levin
                   ` (4 subsequent siblings)
  7 siblings, 0 replies; 8+ messages in thread
From: Sasha Levin @ 2023-02-09 11:14 UTC (permalink / raw)
  To: linux-kernel, stable
  Cc: Sasha Levin, Daniel Miess, Charlene.Liu, Alex Hung, sancchen,
	Xinhui.Pan, Rodrigo.Siqueira, amd-gfx, christian.koenig, mwen,
	sunpeng.li, Daniel Wheeler, dri-devel, Alex Deucher,
	nicholas.kazlauskas

From: Daniel Miess <Daniel.Miess@amd.com>

[ Upstream commit dd2db2dc4bd298f33dea50c80c3c11bee4e3b0a4 ]

[Why]
Lower max_downscale_ratio and ARGB888 downscale factor
to prevent cases where underflow may occur on dcn314

[How]
Set max_downscale_ratio to 400 and ARGB downscale factor
to 250 for dcn314

Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com>
Acked-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Daniel Miess <Daniel.Miess@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/amd/display/dc/dcn314/dcn314_resource.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/dc/dcn314/dcn314_resource.c b/drivers/gpu/drm/amd/display/dc/dcn314/dcn314_resource.c
index 9066c511a0529..c80c8c8f51e97 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn314/dcn314_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn314/dcn314_resource.c
@@ -871,8 +871,9 @@ static const struct dc_plane_cap plane_cap = {
 	},
 
 	// 6:1 downscaling ratio: 1000/6 = 166.666
+	// 4:1 downscaling ratio for ARGB888 to prevent underflow during P010 playback: 1000/4 = 250
 	.max_downscale_factor = {
-			.argb8888 = 167,
+			.argb8888 = 250,
 			.nv12 = 167,
 			.fp16 = 167
 	},
@@ -1755,7 +1756,7 @@ static bool dcn314_resource_construct(
 	pool->base.underlay_pipe_index = NO_UNDERLAY_PIPE;
 	pool->base.pipe_count = pool->base.res_cap->num_timing_generator;
 	pool->base.mpcc_count = pool->base.res_cap->num_timing_generator;
-	dc->caps.max_downscale_ratio = 600;
+	dc->caps.max_downscale_ratio = 400;
 	dc->caps.i2c_speed_in_khz = 100;
 	dc->caps.i2c_speed_in_khz_hdcp = 100;
 	dc->caps.max_cursor_size = 256;
-- 
2.39.0


^ permalink raw reply related	[flat|nested] 8+ messages in thread

* [PATCH AUTOSEL 6.1 31/38] drm/amd/display: Unassign does_plane_fit_in_mall function from dcn3.2
       [not found] <20230209111459.1891941-1-sashal@kernel.org>
                   ` (2 preceding siblings ...)
  2023-02-09 11:14 ` [PATCH AUTOSEL 6.1 30/38] drm/amd/display: Adjust downscaling limits for dcn314 Sasha Levin
@ 2023-02-09 11:14 ` Sasha Levin
  2023-02-09 11:14 ` [PATCH AUTOSEL 6.1 32/38] drm/amd/display: Reset DMUB mailbox SW state after HW reset Sasha Levin
                   ` (3 subsequent siblings)
  7 siblings, 0 replies; 8+ messages in thread
From: Sasha Levin @ 2023-02-09 11:14 UTC (permalink / raw)
  To: linux-kernel, stable
  Cc: Sasha Levin, Dillon.Varone, Martin.Leung, Alex Hung, dri-devel,
	Xinhui.Pan, Rodrigo.Siqueira, amd-gfx, wenjing.liu, sunpeng.li,
	Daniel Wheeler, aurabindo.pillai, Alvin Lee, George Shen,
	Alex Deucher, Jun.Lei, christian.koenig

From: George Shen <george.shen@amd.com>

[ Upstream commit 275d8a1db261a1272a818d40ebc61b3b865b60e5 ]

[Why]
The hwss function does_plane_fit_in_mall not applicable to dcn3.2 asics.
Using it with dcn3.2 can result in undefined behaviour.

[How]
Assign the function pointer to NULL.

Reviewed-by: Alvin Lee <Alvin.Lee2@amd.com>
Acked-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: George Shen <george.shen@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/amd/display/dc/dcn32/dcn32_init.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_init.c b/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_init.c
index 45a949ba6f3f3..7b7f0e6b2a2ff 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_init.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_init.c
@@ -94,7 +94,7 @@ static const struct hw_sequencer_funcs dcn32_funcs = {
 	.get_vupdate_offset_from_vsync = dcn10_get_vupdate_offset_from_vsync,
 	.calc_vupdate_position = dcn10_calc_vupdate_position,
 	.apply_idle_power_optimizations = dcn32_apply_idle_power_optimizations,
-	.does_plane_fit_in_mall = dcn30_does_plane_fit_in_mall,
+	.does_plane_fit_in_mall = NULL,
 	.set_backlight_level = dcn21_set_backlight_level,
 	.set_abm_immediate_disable = dcn21_set_abm_immediate_disable,
 	.hardware_release = dcn30_hardware_release,
-- 
2.39.0


^ permalink raw reply related	[flat|nested] 8+ messages in thread

* [PATCH AUTOSEL 6.1 32/38] drm/amd/display: Reset DMUB mailbox SW state after HW reset
       [not found] <20230209111459.1891941-1-sashal@kernel.org>
                   ` (3 preceding siblings ...)
  2023-02-09 11:14 ` [PATCH AUTOSEL 6.1 31/38] drm/amd/display: Unassign does_plane_fit_in_mall function from dcn3.2 Sasha Levin
@ 2023-02-09 11:14 ` Sasha Levin
  2023-02-09 11:14 ` [PATCH AUTOSEL 6.1 33/38] drm/amdgpu: enable HDP SD for gfx 11.0.3 Sasha Levin
                   ` (2 subsequent siblings)
  7 siblings, 0 replies; 8+ messages in thread
From: Sasha Levin @ 2023-02-09 11:14 UTC (permalink / raw)
  To: linux-kernel, stable
  Cc: Sasha Levin, Hansen Dsouza, Alex Hung, qingqing.zhuo, Xinhui.Pan,
	Rodrigo.Siqueira, roman.li, amd-gfx, christian.koenig,
	sunpeng.li, Daniel Wheeler, aurabindo.pillai, dri-devel,
	Alex Deucher, Nicholas Kazlauskas

From: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>

[ Upstream commit 154711aa5759ef9b45903124fa813c4c29ee681c ]

[Why]
Otherwise we can be out of sync with what's in the hardware, leading
to us rerunning every command that's presently in the ringbuffer.

[How]
Reset software state for the mailboxes in hw_reset callback.
This is already done as part of the mailbox init in hw_init, but we
do need to remember to reset the last cached wptr value as well here.

Reviewed-by: Hansen Dsouza <hansen.dsouza@amd.com>
Acked-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/amd/display/dmub/src/dmub_srv.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/drivers/gpu/drm/amd/display/dmub/src/dmub_srv.c b/drivers/gpu/drm/amd/display/dmub/src/dmub_srv.c
index 4a122925c3ae9..92c18bfb98b3b 100644
--- a/drivers/gpu/drm/amd/display/dmub/src/dmub_srv.c
+++ b/drivers/gpu/drm/amd/display/dmub/src/dmub_srv.c
@@ -532,6 +532,9 @@ enum dmub_status dmub_srv_hw_init(struct dmub_srv *dmub,
 	if (dmub->hw_funcs.reset)
 		dmub->hw_funcs.reset(dmub);
 
+	/* reset the cache of the last wptr as well now that hw is reset */
+	dmub->inbox1_last_wptr = 0;
+
 	cw0.offset.quad_part = inst_fb->gpu_addr;
 	cw0.region.base = DMUB_CW0_BASE;
 	cw0.region.top = cw0.region.base + inst_fb->size - 1;
@@ -649,6 +652,15 @@ enum dmub_status dmub_srv_hw_reset(struct dmub_srv *dmub)
 	if (dmub->hw_funcs.reset)
 		dmub->hw_funcs.reset(dmub);
 
+	/* mailboxes have been reset in hw, so reset the sw state as well */
+	dmub->inbox1_last_wptr = 0;
+	dmub->inbox1_rb.wrpt = 0;
+	dmub->inbox1_rb.rptr = 0;
+	dmub->outbox0_rb.wrpt = 0;
+	dmub->outbox0_rb.rptr = 0;
+	dmub->outbox1_rb.wrpt = 0;
+	dmub->outbox1_rb.rptr = 0;
+
 	dmub->hw_init = false;
 
 	return DMUB_STATUS_OK;
-- 
2.39.0


^ permalink raw reply related	[flat|nested] 8+ messages in thread

* [PATCH AUTOSEL 6.1 33/38] drm/amdgpu: enable HDP SD for gfx 11.0.3
       [not found] <20230209111459.1891941-1-sashal@kernel.org>
                   ` (4 preceding siblings ...)
  2023-02-09 11:14 ` [PATCH AUTOSEL 6.1 32/38] drm/amd/display: Reset DMUB mailbox SW state after HW reset Sasha Levin
@ 2023-02-09 11:14 ` Sasha Levin
  2023-02-09 11:14 ` [PATCH AUTOSEL 6.1 34/38] drm/amdgpu: Enable vclk dclk node for gc11.0.3 Sasha Levin
  2023-02-09 11:14 ` [PATCH AUTOSEL 6.1 35/38] drm/amd/display: Properly handle additional cases where DCN is not supported Sasha Levin
  7 siblings, 0 replies; 8+ messages in thread
From: Sasha Levin @ 2023-02-09 11:14 UTC (permalink / raw)
  To: linux-kernel, stable
  Cc: Sasha Levin, tim.huang, James.Zhu, yiqing.yao, Feifei Xu,
	Xinhui.Pan, amd-gfx, sonny.jiang, Stanley.Yang, dri-devel,
	Alex Deucher, kenneth.feng, Likun.Gao, Evan Quan,
	christian.koenig, Hawking.Zhang

From: Evan Quan <evan.quan@amd.com>

[ Upstream commit bb25849c0fa550b26cecc9c476c519a927c66898 ]

Enable HDP clock gating control for gfx 11.0.3.

Signed-off-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Feifei Xu <Feifei.Xu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/amd/amdgpu/soc21.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/soc21.c b/drivers/gpu/drm/amd/amdgpu/soc21.c
index 9bc9852b9cda9..230e15fed755c 100644
--- a/drivers/gpu/drm/amd/amdgpu/soc21.c
+++ b/drivers/gpu/drm/amd/amdgpu/soc21.c
@@ -643,7 +643,8 @@ static int soc21_common_early_init(void *handle)
 			AMD_CG_SUPPORT_GFX_CGCG |
 			AMD_CG_SUPPORT_GFX_CGLS |
 			AMD_CG_SUPPORT_REPEATER_FGCG |
-			AMD_CG_SUPPORT_GFX_MGCG;
+			AMD_CG_SUPPORT_GFX_MGCG |
+			AMD_CG_SUPPORT_HDP_SD;
 		adev->pg_flags = AMD_PG_SUPPORT_VCN |
 			AMD_PG_SUPPORT_VCN_DPG |
 			AMD_PG_SUPPORT_JPEG;
-- 
2.39.0


^ permalink raw reply related	[flat|nested] 8+ messages in thread

* [PATCH AUTOSEL 6.1 34/38] drm/amdgpu: Enable vclk dclk node for gc11.0.3
       [not found] <20230209111459.1891941-1-sashal@kernel.org>
                   ` (5 preceding siblings ...)
  2023-02-09 11:14 ` [PATCH AUTOSEL 6.1 33/38] drm/amdgpu: enable HDP SD for gfx 11.0.3 Sasha Levin
@ 2023-02-09 11:14 ` Sasha Levin
  2023-02-09 11:14 ` [PATCH AUTOSEL 6.1 35/38] drm/amd/display: Properly handle additional cases where DCN is not supported Sasha Levin
  7 siblings, 0 replies; 8+ messages in thread
From: Sasha Levin @ 2023-02-09 11:14 UTC (permalink / raw)
  To: linux-kernel, stable
  Cc: Sasha Levin, Yiqing Yao, Xinhui.Pan, amd-gfx, dri-devel,
	Alex Deucher, evan.quan, christian.koenig, Hawking Zhang

From: Yiqing Yao <yiqing.yao@amd.com>

[ Upstream commit ac7170082c0e140663f0853d3de733a5341ce7b0 ]

These sysfs nodes are tested supported, so enable them.

Signed-off-by: Yiqing Yao <yiqing.yao@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/amd/pm/amdgpu_pm.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/pm/amdgpu_pm.c b/drivers/gpu/drm/amd/pm/amdgpu_pm.c
index 236657eece477..a9170360d7e85 100644
--- a/drivers/gpu/drm/amd/pm/amdgpu_pm.c
+++ b/drivers/gpu/drm/amd/pm/amdgpu_pm.c
@@ -2007,14 +2007,16 @@ static int default_attr_update(struct amdgpu_device *adev, struct amdgpu_device_
 		      gc_ver == IP_VERSION(10, 3, 0) ||
 		      gc_ver == IP_VERSION(10, 1, 2) ||
 		      gc_ver == IP_VERSION(11, 0, 0) ||
-		      gc_ver == IP_VERSION(11, 0, 2)))
+		      gc_ver == IP_VERSION(11, 0, 2) ||
+		      gc_ver == IP_VERSION(11, 0, 3)))
 			*states = ATTR_STATE_UNSUPPORTED;
 	} else if (DEVICE_ATTR_IS(pp_dpm_dclk)) {
 		if (!(gc_ver == IP_VERSION(10, 3, 1) ||
 		      gc_ver == IP_VERSION(10, 3, 0) ||
 		      gc_ver == IP_VERSION(10, 1, 2) ||
 		      gc_ver == IP_VERSION(11, 0, 0) ||
-		      gc_ver == IP_VERSION(11, 0, 2)))
+		      gc_ver == IP_VERSION(11, 0, 2) ||
+		      gc_ver == IP_VERSION(11, 0, 3)))
 			*states = ATTR_STATE_UNSUPPORTED;
 	} else if (DEVICE_ATTR_IS(pp_power_profile_mode)) {
 		if (amdgpu_dpm_get_power_profile_mode(adev, NULL) == -EOPNOTSUPP)
-- 
2.39.0


^ permalink raw reply related	[flat|nested] 8+ messages in thread

* [PATCH AUTOSEL 6.1 35/38] drm/amd/display: Properly handle additional cases where DCN is not supported
       [not found] <20230209111459.1891941-1-sashal@kernel.org>
                   ` (6 preceding siblings ...)
  2023-02-09 11:14 ` [PATCH AUTOSEL 6.1 34/38] drm/amdgpu: Enable vclk dclk node for gc11.0.3 Sasha Levin
@ 2023-02-09 11:14 ` Sasha Levin
  7 siblings, 0 replies; 8+ messages in thread
From: Sasha Levin @ 2023-02-09 11:14 UTC (permalink / raw)
  To: linux-kernel, stable
  Cc: Sasha Levin, stylon.wang, sunpeng.li, Xinhui.Pan,
	Rodrigo.Siqueira, roman.li, amd-gfx, Jerry.Zuo, Aurabindo Pillai,
	dri-devel, Alex Deucher, christian.koenig

From: Alex Deucher <alexander.deucher@amd.com>

[ Upstream commit 6fc547a5a2ef5ce05b16924106663ab92f8f87a7 ]

There could be boards with DCN listed in IP discovery, but no
display hardware actually wired up.  In this case the vbios
display table will not be populated.  Detect this case and
skip loading DM when we detect it.

v2: Mark DCN as harvested as well so other display checks
elsewhere in the driver are handled properly.

Cc: Aurabindo Pillai <aurabindo.pillai@amd.com>
Reviewed-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index 85bd1f18259c7..c92aaf5c36ef5 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -4512,6 +4512,17 @@ DEVICE_ATTR_WO(s3_debug);
 static int dm_early_init(void *handle)
 {
 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+	struct amdgpu_mode_info *mode_info = &adev->mode_info;
+	struct atom_context *ctx = mode_info->atom_context;
+	int index = GetIndexIntoMasterTable(DATA, Object_Header);
+	u16 data_offset;
+
+	/* if there is no object header, skip DM */
+	if (!amdgpu_atom_parse_data_header(ctx, index, NULL, NULL, NULL, &data_offset)) {
+		adev->harvest_ip_mask |= AMD_HARVEST_IP_DMU_MASK;
+		dev_info(adev->dev, "No object header, skipping DM\n");
+		return -ENOENT;
+	}
 
 	switch (adev->asic_type) {
 #if defined(CONFIG_DRM_AMD_DC_SI)
-- 
2.39.0


^ permalink raw reply related	[flat|nested] 8+ messages in thread

end of thread, other threads:[~2023-02-09 11:17 UTC | newest]

Thread overview: 8+ messages (download: mbox.gz / follow: Atom feed)
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     [not found] <20230209111459.1891941-1-sashal@kernel.org>
2023-02-09 11:14 ` [PATCH AUTOSEL 6.1 22/38] drm/nouveau/devinit/tu102-: wait for GFW_BOOT_PROGRESS == COMPLETED Sasha Levin
2023-02-09 11:14 ` [PATCH AUTOSEL 6.1 29/38] drm/amd/display: Add missing brackets in calculation Sasha Levin
2023-02-09 11:14 ` [PATCH AUTOSEL 6.1 30/38] drm/amd/display: Adjust downscaling limits for dcn314 Sasha Levin
2023-02-09 11:14 ` [PATCH AUTOSEL 6.1 31/38] drm/amd/display: Unassign does_plane_fit_in_mall function from dcn3.2 Sasha Levin
2023-02-09 11:14 ` [PATCH AUTOSEL 6.1 32/38] drm/amd/display: Reset DMUB mailbox SW state after HW reset Sasha Levin
2023-02-09 11:14 ` [PATCH AUTOSEL 6.1 33/38] drm/amdgpu: enable HDP SD for gfx 11.0.3 Sasha Levin
2023-02-09 11:14 ` [PATCH AUTOSEL 6.1 34/38] drm/amdgpu: Enable vclk dclk node for gc11.0.3 Sasha Levin
2023-02-09 11:14 ` [PATCH AUTOSEL 6.1 35/38] drm/amd/display: Properly handle additional cases where DCN is not supported Sasha Levin

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