* [PATCH] Revert "drm/amdgpu: use polling mem to set SDMA3 wptr for VF"
@ 2018-03-02 3:31 Emily Deng
[not found] ` <1519961490-2813-1-git-send-email-Emily.Deng-5C7GfCeVMHo@public.gmane.org>
0 siblings, 1 reply; 6+ messages in thread
From: Emily Deng @ 2018-03-02 3:31 UTC (permalink / raw)
To: amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW; +Cc: Emily Deng
This reverts commit 2ffe31deb27579e2f2c9444e01f4d8abf385d145.
The sdma wptr poll memomy doesn't have the same efficiency as
doorbell, and it will make sdma hang when running tests.
Change-Id: I6e334430b309b0c21aa18a08764320c7ff51e353
Signed-off-by: Emily Deng <Emily.Deng@amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h | 1 -
drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c | 27 ++++++++-------------------
2 files changed, 8 insertions(+), 20 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h
index 102dad3..5dcf98b 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h
@@ -186,7 +186,6 @@ struct amdgpu_ring {
uint64_t eop_gpu_addr;
u32 doorbell_index;
bool use_doorbell;
- bool use_pollmem;
unsigned wptr_offs;
unsigned fence_offs;
uint64_t current_ctx;
diff --git a/drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c b/drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c
index 521978c..d3fb3ca 100644
--- a/drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c
@@ -355,7 +355,7 @@ static uint64_t sdma_v3_0_ring_get_wptr(struct amdgpu_ring *ring)
struct amdgpu_device *adev = ring->adev;
u32 wptr;
- if (ring->use_doorbell || ring->use_pollmem) {
+ if (ring->use_doorbell) {
/* XXX check if swapping is necessary on BE */
wptr = ring->adev->wb.wb[ring->wptr_offs] >> 2;
} else {
@@ -380,13 +380,10 @@ static void sdma_v3_0_ring_set_wptr(struct amdgpu_ring *ring)
if (ring->use_doorbell) {
u32 *wb = (u32 *)&adev->wb.wb[ring->wptr_offs];
+
/* XXX check if swapping is necessary on BE */
WRITE_ONCE(*wb, (lower_32_bits(ring->wptr) << 2));
WDOORBELL32(ring->doorbell_index, lower_32_bits(ring->wptr) << 2);
- } else if (ring->use_pollmem) {
- u32 *wb = (u32 *)&adev->wb.wb[ring->wptr_offs];
-
- WRITE_ONCE(*wb, (lower_32_bits(ring->wptr) << 2));
} else {
int me = (ring == &ring->adev->sdma.instance[0].ring) ? 0 : 1;
@@ -719,14 +716,10 @@ static int sdma_v3_0_gfx_resume(struct amdgpu_device *adev)
WREG32(mmSDMA0_GFX_RB_WPTR_POLL_ADDR_HI + sdma_offsets[i],
upper_32_bits(wptr_gpu_addr));
wptr_poll_cntl = RREG32(mmSDMA0_GFX_RB_WPTR_POLL_CNTL + sdma_offsets[i]);
- if (ring->use_pollmem)
- wptr_poll_cntl = REG_SET_FIELD(wptr_poll_cntl,
- SDMA0_GFX_RB_WPTR_POLL_CNTL,
- ENABLE, 1);
+ if (amdgpu_sriov_vf(adev))
+ wptr_poll_cntl = REG_SET_FIELD(wptr_poll_cntl, SDMA0_GFX_RB_WPTR_POLL_CNTL, F32_POLL_ENABLE, 1);
else
- wptr_poll_cntl = REG_SET_FIELD(wptr_poll_cntl,
- SDMA0_GFX_RB_WPTR_POLL_CNTL,
- ENABLE, 0);
+ wptr_poll_cntl = REG_SET_FIELD(wptr_poll_cntl, SDMA0_GFX_RB_WPTR_POLL_CNTL, F32_POLL_ENABLE, 0);
WREG32(mmSDMA0_GFX_RB_WPTR_POLL_CNTL + sdma_offsets[i], wptr_poll_cntl);
/* enable DMA RB */
@@ -1208,13 +1201,9 @@ static int sdma_v3_0_sw_init(void *handle)
for (i = 0; i < adev->sdma.num_instances; i++) {
ring = &adev->sdma.instance[i].ring;
ring->ring_obj = NULL;
- if (!amdgpu_sriov_vf(adev)) {
- ring->use_doorbell = true;
- ring->doorbell_index = (i == 0) ?
- AMDGPU_DOORBELL_sDMA_ENGINE0 : AMDGPU_DOORBELL_sDMA_ENGINE1;
- } else {
- ring->use_pollmem = true;
- }
+ ring->use_doorbell = true;
+ ring->doorbell_index = (i == 0) ?
+ AMDGPU_DOORBELL_sDMA_ENGINE0 : AMDGPU_DOORBELL_sDMA_ENGINE1;
sprintf(ring->name, "sdma%d", i);
r = amdgpu_ring_init(adev, ring, 1024,
--
2.7.4
_______________________________________________
amd-gfx mailing list
amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx
^ permalink raw reply related [flat|nested] 6+ messages in thread[parent not found: <1519961490-2813-1-git-send-email-Emily.Deng-5C7GfCeVMHo@public.gmane.org>]
* RE: [PATCH] Revert "drm/amdgpu: use polling mem to set SDMA3 wptr for VF" [not found] ` <1519961490-2813-1-git-send-email-Emily.Deng-5C7GfCeVMHo@public.gmane.org> @ 2018-03-05 10:20 ` Deng, Emily [not found] ` <CY4PR12MB11253B1EA35C42340A0B1D118FDA0-rpdhrqHFk07v2MZdTKcfDgdYzm3356FpvxpqHgZTriW3zl9H0oFU5g@public.gmane.org> 2018-03-06 1:50 ` Deng, Emily 2018-03-06 3:14 ` Deucher, Alexander 2 siblings, 1 reply; 6+ messages in thread From: Deng, Emily @ 2018-03-05 10:20 UTC (permalink / raw) To: Deng, Emily, amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW Ping.... Hi all, Please help review this, the regression introduced by the commit 2ffe31deb27579e2f2c9444e01f4d8abf385d145 is gating the sriov sanity test. Best Wishes, Emily Deng > -----Original Message----- > From: Emily Deng [mailto:Emily.Deng@amd.com] > Sent: Friday, March 02, 2018 11:32 AM > To: amd-gfx@lists.freedesktop.org > Cc: Deng, Emily <Emily.Deng@amd.com> > Subject: [PATCH] Revert "drm/amdgpu: use polling mem to set SDMA3 wptr > for VF" > > This reverts commit 2ffe31deb27579e2f2c9444e01f4d8abf385d145. > The sdma wptr poll memomy doesn't have the same efficiency as doorbell, > and it will make sdma hang when running tests. > > Change-Id: I6e334430b309b0c21aa18a08764320c7ff51e353 > Signed-off-by: Emily Deng <Emily.Deng@amd.com> > --- > drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h | 1 - > drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c | 27 ++++++++------------------- > 2 files changed, 8 insertions(+), 20 deletions(-) > > diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h > b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h > index 102dad3..5dcf98b 100644 > --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h > +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h > @@ -186,7 +186,6 @@ struct amdgpu_ring { > uint64_t eop_gpu_addr; > u32 doorbell_index; > bool use_doorbell; > - bool use_pollmem; > unsigned wptr_offs; > unsigned fence_offs; > uint64_t current_ctx; > diff --git a/drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c > b/drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c > index 521978c..d3fb3ca 100644 > --- a/drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c > +++ b/drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c > @@ -355,7 +355,7 @@ static uint64_t sdma_v3_0_ring_get_wptr(struct > amdgpu_ring *ring) > struct amdgpu_device *adev = ring->adev; > u32 wptr; > > - if (ring->use_doorbell || ring->use_pollmem) { > + if (ring->use_doorbell) { > /* XXX check if swapping is necessary on BE */ > wptr = ring->adev->wb.wb[ring->wptr_offs] >> 2; > } else { > @@ -380,13 +380,10 @@ static void sdma_v3_0_ring_set_wptr(struct > amdgpu_ring *ring) > > if (ring->use_doorbell) { > u32 *wb = (u32 *)&adev->wb.wb[ring->wptr_offs]; > + > /* XXX check if swapping is necessary on BE */ > WRITE_ONCE(*wb, (lower_32_bits(ring->wptr) << 2)); > WDOORBELL32(ring->doorbell_index, lower_32_bits(ring- > >wptr) << 2); > - } else if (ring->use_pollmem) { > - u32 *wb = (u32 *)&adev->wb.wb[ring->wptr_offs]; > - > - WRITE_ONCE(*wb, (lower_32_bits(ring->wptr) << 2)); > } else { > int me = (ring == &ring->adev->sdma.instance[0].ring) ? 0 : 1; > > @@ -719,14 +716,10 @@ static int sdma_v3_0_gfx_resume(struct > amdgpu_device *adev) > WREG32(mmSDMA0_GFX_RB_WPTR_POLL_ADDR_HI + > sdma_offsets[i], > upper_32_bits(wptr_gpu_addr)); > wptr_poll_cntl = > RREG32(mmSDMA0_GFX_RB_WPTR_POLL_CNTL + sdma_offsets[i]); > - if (ring->use_pollmem) > - wptr_poll_cntl = REG_SET_FIELD(wptr_poll_cntl, > - > SDMA0_GFX_RB_WPTR_POLL_CNTL, > - ENABLE, 1); > + if (amdgpu_sriov_vf(adev)) > + wptr_poll_cntl = REG_SET_FIELD(wptr_poll_cntl, > +SDMA0_GFX_RB_WPTR_POLL_CNTL, F32_POLL_ENABLE, 1); > else > - wptr_poll_cntl = REG_SET_FIELD(wptr_poll_cntl, > - > SDMA0_GFX_RB_WPTR_POLL_CNTL, > - ENABLE, 0); > + wptr_poll_cntl = REG_SET_FIELD(wptr_poll_cntl, > +SDMA0_GFX_RB_WPTR_POLL_CNTL, F32_POLL_ENABLE, 0); > WREG32(mmSDMA0_GFX_RB_WPTR_POLL_CNTL + > sdma_offsets[i], wptr_poll_cntl); > > /* enable DMA RB */ > @@ -1208,13 +1201,9 @@ static int sdma_v3_0_sw_init(void *handle) > for (i = 0; i < adev->sdma.num_instances; i++) { > ring = &adev->sdma.instance[i].ring; > ring->ring_obj = NULL; > - if (!amdgpu_sriov_vf(adev)) { > - ring->use_doorbell = true; > - ring->doorbell_index = (i == 0) ? > - AMDGPU_DOORBELL_sDMA_ENGINE0 : > AMDGPU_DOORBELL_sDMA_ENGINE1; > - } else { > - ring->use_pollmem = true; > - } > + ring->use_doorbell = true; > + ring->doorbell_index = (i == 0) ? > + AMDGPU_DOORBELL_sDMA_ENGINE0 : > AMDGPU_DOORBELL_sDMA_ENGINE1; > > sprintf(ring->name, "sdma%d", i); > r = amdgpu_ring_init(adev, ring, 1024, > -- > 2.7.4 _______________________________________________ amd-gfx mailing list amd-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/amd-gfx ^ permalink raw reply [flat|nested] 6+ messages in thread
[parent not found: <CY4PR12MB11253B1EA35C42340A0B1D118FDA0-rpdhrqHFk07v2MZdTKcfDgdYzm3356FpvxpqHgZTriW3zl9H0oFU5g@public.gmane.org>]
* RE: [PATCH] Revert "drm/amdgpu: use polling mem to set SDMA3 wptr for VF" [not found] ` <CY4PR12MB11253B1EA35C42340A0B1D118FDA0-rpdhrqHFk07v2MZdTKcfDgdYzm3356FpvxpqHgZTriW3zl9H0oFU5g@public.gmane.org> @ 2018-03-05 10:53 ` Liu, Monk 0 siblings, 0 replies; 6+ messages in thread From: Liu, Monk @ 2018-03-05 10:53 UTC (permalink / raw) To: Deng, Emily You can tag my RB -----Original Message----- From: amd-gfx [mailto:amd-gfx-bounces@lists.freedesktop.org] On Behalf Of Deng, Emily Sent: 2018年3月5日 18:20 To: Deng, Emily <Emily.Deng@amd.com>; amd-gfx@lists.freedesktop.org Subject: RE: [PATCH] Revert "drm/amdgpu: use polling mem to set SDMA3 wptr for VF" Ping.... Hi all, Please help review this, the regression introduced by the commit 2ffe31deb27579e2f2c9444e01f4d8abf385d145 is gating the sriov sanity test. Best Wishes, Emily Deng > -----Original Message----- > From: Emily Deng [mailto:Emily.Deng@amd.com] > Sent: Friday, March 02, 2018 11:32 AM > To: amd-gfx@lists.freedesktop.org > Cc: Deng, Emily <Emily.Deng@amd.com> > Subject: [PATCH] Revert "drm/amdgpu: use polling mem to set SDMA3 wptr > for VF" > > This reverts commit 2ffe31deb27579e2f2c9444e01f4d8abf385d145. > The sdma wptr poll memomy doesn't have the same efficiency as > doorbell, and it will make sdma hang when running tests. > > Change-Id: I6e334430b309b0c21aa18a08764320c7ff51e353 > Signed-off-by: Emily Deng <Emily.Deng@amd.com> > --- > drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h | 1 - > drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c | 27 ++++++++------------------- > 2 files changed, 8 insertions(+), 20 deletions(-) > > diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h > b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h > index 102dad3..5dcf98b 100644 > --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h > +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h > @@ -186,7 +186,6 @@ struct amdgpu_ring { > uint64_t eop_gpu_addr; > u32 doorbell_index; > bool use_doorbell; > - bool use_pollmem; > unsigned wptr_offs; > unsigned fence_offs; > uint64_t current_ctx; > diff --git a/drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c > b/drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c > index 521978c..d3fb3ca 100644 > --- a/drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c > +++ b/drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c > @@ -355,7 +355,7 @@ static uint64_t sdma_v3_0_ring_get_wptr(struct > amdgpu_ring *ring) > struct amdgpu_device *adev = ring->adev; > u32 wptr; > > - if (ring->use_doorbell || ring->use_pollmem) { > + if (ring->use_doorbell) { > /* XXX check if swapping is necessary on BE */ > wptr = ring->adev->wb.wb[ring->wptr_offs] >> 2; > } else { > @@ -380,13 +380,10 @@ static void sdma_v3_0_ring_set_wptr(struct > amdgpu_ring *ring) > > if (ring->use_doorbell) { > u32 *wb = (u32 *)&adev->wb.wb[ring->wptr_offs]; > + > /* XXX check if swapping is necessary on BE */ > WRITE_ONCE(*wb, (lower_32_bits(ring->wptr) << 2)); > WDOORBELL32(ring->doorbell_index, lower_32_bits(ring- > >wptr) << 2); > - } else if (ring->use_pollmem) { > - u32 *wb = (u32 *)&adev->wb.wb[ring->wptr_offs]; > - > - WRITE_ONCE(*wb, (lower_32_bits(ring->wptr) << 2)); > } else { > int me = (ring == &ring->adev->sdma.instance[0].ring) ? 0 : 1; > > @@ -719,14 +716,10 @@ static int sdma_v3_0_gfx_resume(struct > amdgpu_device *adev) > WREG32(mmSDMA0_GFX_RB_WPTR_POLL_ADDR_HI + sdma_offsets[i], > upper_32_bits(wptr_gpu_addr)); > wptr_poll_cntl = > RREG32(mmSDMA0_GFX_RB_WPTR_POLL_CNTL + sdma_offsets[i]); > - if (ring->use_pollmem) > - wptr_poll_cntl = REG_SET_FIELD(wptr_poll_cntl, > - > SDMA0_GFX_RB_WPTR_POLL_CNTL, > - ENABLE, 1); > + if (amdgpu_sriov_vf(adev)) > + wptr_poll_cntl = REG_SET_FIELD(wptr_poll_cntl, > +SDMA0_GFX_RB_WPTR_POLL_CNTL, F32_POLL_ENABLE, 1); > else > - wptr_poll_cntl = REG_SET_FIELD(wptr_poll_cntl, > - > SDMA0_GFX_RB_WPTR_POLL_CNTL, > - ENABLE, 0); > + wptr_poll_cntl = REG_SET_FIELD(wptr_poll_cntl, > +SDMA0_GFX_RB_WPTR_POLL_CNTL, F32_POLL_ENABLE, 0); > WREG32(mmSDMA0_GFX_RB_WPTR_POLL_CNTL + sdma_offsets[i], > wptr_poll_cntl); > > /* enable DMA RB */ > @@ -1208,13 +1201,9 @@ static int sdma_v3_0_sw_init(void *handle) > for (i = 0; i < adev->sdma.num_instances; i++) { > ring = &adev->sdma.instance[i].ring; > ring->ring_obj = NULL; > - if (!amdgpu_sriov_vf(adev)) { > - ring->use_doorbell = true; > - ring->doorbell_index = (i == 0) ? > - AMDGPU_DOORBELL_sDMA_ENGINE0 : > AMDGPU_DOORBELL_sDMA_ENGINE1; > - } else { > - ring->use_pollmem = true; > - } > + ring->use_doorbell = true; > + ring->doorbell_index = (i == 0) ? > + AMDGPU_DOORBELL_sDMA_ENGINE0 : > AMDGPU_DOORBELL_sDMA_ENGINE1; > > sprintf(ring->name, "sdma%d", i); > r = amdgpu_ring_init(adev, ring, 1024, > -- > 2.7.4 _______________________________________________ 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] 6+ messages in thread
* RE: [PATCH] Revert "drm/amdgpu: use polling mem to set SDMA3 wptr for VF" [not found] ` <1519961490-2813-1-git-send-email-Emily.Deng-5C7GfCeVMHo@public.gmane.org> 2018-03-05 10:20 ` Deng, Emily @ 2018-03-06 1:50 ` Deng, Emily [not found] ` <CY4PR12MB11256AD429333AD64D632D3D8FD90-rpdhrqHFk07v2MZdTKcfDgdYzm3356FpvxpqHgZTriW3zl9H0oFU5g@public.gmane.org> 2018-03-06 3:14 ` Deucher, Alexander 2 siblings, 1 reply; 6+ messages in thread From: Deng, Emily @ 2018-03-06 1:50 UTC (permalink / raw) To: Deng, Emily, amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW Ping.... Hi all, Please help review this, the regression introduced by the commit 2ffe31deb27579e2f2c9444e01f4d8abf385d145 is gating the sriov sanity test. Best Wishes, Emily Deng > -----Original Message----- > From: Emily Deng [mailto:Emily.Deng@amd.com] > Sent: Friday, March 02, 2018 11:32 AM > To: amd-gfx@lists.freedesktop.org > Cc: Deng, Emily <Emily.Deng@amd.com> > Subject: [PATCH] Revert "drm/amdgpu: use polling mem to set SDMA3 wptr > for VF" > > This reverts commit 2ffe31deb27579e2f2c9444e01f4d8abf385d145. > The sdma wptr poll memomy doesn't have the same efficiency as doorbell, > and it will make sdma hang when running tests. > > Change-Id: I6e334430b309b0c21aa18a08764320c7ff51e353 > Signed-off-by: Emily Deng <Emily.Deng@amd.com> > --- > drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h | 1 - > drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c | 27 ++++++++------------------- > 2 files changed, 8 insertions(+), 20 deletions(-) > > diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h > b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h > index 102dad3..5dcf98b 100644 > --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h > +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h > @@ -186,7 +186,6 @@ struct amdgpu_ring { > uint64_t eop_gpu_addr; > u32 doorbell_index; > bool use_doorbell; > - bool use_pollmem; > unsigned wptr_offs; > unsigned fence_offs; > uint64_t current_ctx; > diff --git a/drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c > b/drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c > index 521978c..d3fb3ca 100644 > --- a/drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c > +++ b/drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c > @@ -355,7 +355,7 @@ static uint64_t sdma_v3_0_ring_get_wptr(struct > amdgpu_ring *ring) > struct amdgpu_device *adev = ring->adev; > u32 wptr; > > - if (ring->use_doorbell || ring->use_pollmem) { > + if (ring->use_doorbell) { > /* XXX check if swapping is necessary on BE */ > wptr = ring->adev->wb.wb[ring->wptr_offs] >> 2; > } else { > @@ -380,13 +380,10 @@ static void sdma_v3_0_ring_set_wptr(struct > amdgpu_ring *ring) > > if (ring->use_doorbell) { > u32 *wb = (u32 *)&adev->wb.wb[ring->wptr_offs]; > + > /* XXX check if swapping is necessary on BE */ > WRITE_ONCE(*wb, (lower_32_bits(ring->wptr) << 2)); > WDOORBELL32(ring->doorbell_index, lower_32_bits(ring- > >wptr) << 2); > - } else if (ring->use_pollmem) { > - u32 *wb = (u32 *)&adev->wb.wb[ring->wptr_offs]; > - > - WRITE_ONCE(*wb, (lower_32_bits(ring->wptr) << 2)); > } else { > int me = (ring == &ring->adev->sdma.instance[0].ring) ? 0 : 1; > > @@ -719,14 +716,10 @@ static int sdma_v3_0_gfx_resume(struct > amdgpu_device *adev) > WREG32(mmSDMA0_GFX_RB_WPTR_POLL_ADDR_HI + > sdma_offsets[i], > upper_32_bits(wptr_gpu_addr)); > wptr_poll_cntl = > RREG32(mmSDMA0_GFX_RB_WPTR_POLL_CNTL + sdma_offsets[i]); > - if (ring->use_pollmem) > - wptr_poll_cntl = REG_SET_FIELD(wptr_poll_cntl, > - > SDMA0_GFX_RB_WPTR_POLL_CNTL, > - ENABLE, 1); > + if (amdgpu_sriov_vf(adev)) > + wptr_poll_cntl = REG_SET_FIELD(wptr_poll_cntl, > +SDMA0_GFX_RB_WPTR_POLL_CNTL, F32_POLL_ENABLE, 1); > else > - wptr_poll_cntl = REG_SET_FIELD(wptr_poll_cntl, > - > SDMA0_GFX_RB_WPTR_POLL_CNTL, > - ENABLE, 0); > + wptr_poll_cntl = REG_SET_FIELD(wptr_poll_cntl, > +SDMA0_GFX_RB_WPTR_POLL_CNTL, F32_POLL_ENABLE, 0); > WREG32(mmSDMA0_GFX_RB_WPTR_POLL_CNTL + > sdma_offsets[i], wptr_poll_cntl); > > /* enable DMA RB */ > @@ -1208,13 +1201,9 @@ static int sdma_v3_0_sw_init(void *handle) > for (i = 0; i < adev->sdma.num_instances; i++) { > ring = &adev->sdma.instance[i].ring; > ring->ring_obj = NULL; > - if (!amdgpu_sriov_vf(adev)) { > - ring->use_doorbell = true; > - ring->doorbell_index = (i == 0) ? > - AMDGPU_DOORBELL_sDMA_ENGINE0 : > AMDGPU_DOORBELL_sDMA_ENGINE1; > - } else { > - ring->use_pollmem = true; > - } > + ring->use_doorbell = true; > + ring->doorbell_index = (i == 0) ? > + AMDGPU_DOORBELL_sDMA_ENGINE0 : > AMDGPU_DOORBELL_sDMA_ENGINE1; > > sprintf(ring->name, "sdma%d", i); > r = amdgpu_ring_init(adev, ring, 1024, > -- > 2.7.4 _______________________________________________ amd-gfx mailing list amd-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/amd-gfx ^ permalink raw reply [flat|nested] 6+ messages in thread
[parent not found: <CY4PR12MB11256AD429333AD64D632D3D8FD90-rpdhrqHFk07v2MZdTKcfDgdYzm3356FpvxpqHgZTriW3zl9H0oFU5g@public.gmane.org>]
* RE: [PATCH] Revert "drm/amdgpu: use polling mem to set SDMA3 wptr for VF" [not found] ` <CY4PR12MB11256AD429333AD64D632D3D8FD90-rpdhrqHFk07v2MZdTKcfDgdYzm3356FpvxpqHgZTriW3zl9H0oFU5g@public.gmane.org> @ 2018-03-06 8:57 ` Deng, Emily 0 siblings, 0 replies; 6+ messages in thread From: Deng, Emily @ 2018-03-06 8:57 UTC (permalink / raw) To: amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW Hi all, Please ignore this patch, the root cause about the sdma hang introduced by sdma wptr polling has been found, will submit another patch. Best Wishes, Emily Deng > -----Original Message----- > From: Deng, Emily > Sent: Tuesday, March 06, 2018 9:50 AM > To: Deng, Emily <Emily.Deng@amd.com>; amd-gfx@lists.freedesktop.org > Subject: RE: [PATCH] Revert "drm/amdgpu: use polling mem to set SDMA3 > wptr for VF" > > Ping.... > Hi all, > Please help review this, the regression introduced by the commit > 2ffe31deb27579e2f2c9444e01f4d8abf385d145 is gating the sriov sanity test. > > Best Wishes, > Emily Deng > > > > -----Original Message----- > > From: Emily Deng [mailto:Emily.Deng@amd.com] > > Sent: Friday, March 02, 2018 11:32 AM > > To: amd-gfx@lists.freedesktop.org > > Cc: Deng, Emily <Emily.Deng@amd.com> > > Subject: [PATCH] Revert "drm/amdgpu: use polling mem to set SDMA3 wptr > > for VF" > > > > This reverts commit 2ffe31deb27579e2f2c9444e01f4d8abf385d145. > > The sdma wptr poll memomy doesn't have the same efficiency as > > doorbell, and it will make sdma hang when running tests. > > > > Change-Id: I6e334430b309b0c21aa18a08764320c7ff51e353 > > Signed-off-by: Emily Deng <Emily.Deng@amd.com> > > --- > > drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h | 1 - > > drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c | 27 ++++++++---------------- > --- > > 2 files changed, 8 insertions(+), 20 deletions(-) > > > > diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h > > b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h > > index 102dad3..5dcf98b 100644 > > --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h > > +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h > > @@ -186,7 +186,6 @@ struct amdgpu_ring { > > uint64_t eop_gpu_addr; > > u32 doorbell_index; > > bool use_doorbell; > > - bool use_pollmem; > > unsigned wptr_offs; > > unsigned fence_offs; > > uint64_t current_ctx; > > diff --git a/drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c > > b/drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c > > index 521978c..d3fb3ca 100644 > > --- a/drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c > > +++ b/drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c > > @@ -355,7 +355,7 @@ static uint64_t sdma_v3_0_ring_get_wptr(struct > > amdgpu_ring *ring) > > struct amdgpu_device *adev = ring->adev; > > u32 wptr; > > > > - if (ring->use_doorbell || ring->use_pollmem) { > > + if (ring->use_doorbell) { > > /* XXX check if swapping is necessary on BE */ > > wptr = ring->adev->wb.wb[ring->wptr_offs] >> 2; > > } else { > > @@ -380,13 +380,10 @@ static void sdma_v3_0_ring_set_wptr(struct > > amdgpu_ring *ring) > > > > if (ring->use_doorbell) { > > u32 *wb = (u32 *)&adev->wb.wb[ring->wptr_offs]; > > + > > /* XXX check if swapping is necessary on BE */ > > WRITE_ONCE(*wb, (lower_32_bits(ring->wptr) << 2)); > > WDOORBELL32(ring->doorbell_index, lower_32_bits(ring- > > >wptr) << 2); > > - } else if (ring->use_pollmem) { > > - u32 *wb = (u32 *)&adev->wb.wb[ring->wptr_offs]; > > - > > - WRITE_ONCE(*wb, (lower_32_bits(ring->wptr) << 2)); > > } else { > > int me = (ring == &ring->adev->sdma.instance[0].ring) ? 0 : 1; > > > > @@ -719,14 +716,10 @@ static int sdma_v3_0_gfx_resume(struct > > amdgpu_device *adev) > > WREG32(mmSDMA0_GFX_RB_WPTR_POLL_ADDR_HI + > sdma_offsets[i], > > upper_32_bits(wptr_gpu_addr)); > > wptr_poll_cntl = > > RREG32(mmSDMA0_GFX_RB_WPTR_POLL_CNTL + sdma_offsets[i]); > > - if (ring->use_pollmem) > > - wptr_poll_cntl = REG_SET_FIELD(wptr_poll_cntl, > > - > > SDMA0_GFX_RB_WPTR_POLL_CNTL, > > - ENABLE, 1); > > + if (amdgpu_sriov_vf(adev)) > > + wptr_poll_cntl = REG_SET_FIELD(wptr_poll_cntl, > > +SDMA0_GFX_RB_WPTR_POLL_CNTL, F32_POLL_ENABLE, 1); > > else > > - wptr_poll_cntl = REG_SET_FIELD(wptr_poll_cntl, > > - > > SDMA0_GFX_RB_WPTR_POLL_CNTL, > > - ENABLE, 0); > > + wptr_poll_cntl = REG_SET_FIELD(wptr_poll_cntl, > > +SDMA0_GFX_RB_WPTR_POLL_CNTL, F32_POLL_ENABLE, 0); > > WREG32(mmSDMA0_GFX_RB_WPTR_POLL_CNTL + > sdma_offsets[i], > > wptr_poll_cntl); > > > > /* enable DMA RB */ > > @@ -1208,13 +1201,9 @@ static int sdma_v3_0_sw_init(void *handle) > > for (i = 0; i < adev->sdma.num_instances; i++) { > > ring = &adev->sdma.instance[i].ring; > > ring->ring_obj = NULL; > > - if (!amdgpu_sriov_vf(adev)) { > > - ring->use_doorbell = true; > > - ring->doorbell_index = (i == 0) ? > > - AMDGPU_DOORBELL_sDMA_ENGINE0 : > > AMDGPU_DOORBELL_sDMA_ENGINE1; > > - } else { > > - ring->use_pollmem = true; > > - } > > + ring->use_doorbell = true; > > + ring->doorbell_index = (i == 0) ? > > + AMDGPU_DOORBELL_sDMA_ENGINE0 : > > AMDGPU_DOORBELL_sDMA_ENGINE1; > > > > sprintf(ring->name, "sdma%d", i); > > r = amdgpu_ring_init(adev, ring, 1024, > > -- > > 2.7.4 _______________________________________________ amd-gfx mailing list amd-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/amd-gfx ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH] Revert "drm/amdgpu: use polling mem to set SDMA3 wptr for VF" [not found] ` <1519961490-2813-1-git-send-email-Emily.Deng-5C7GfCeVMHo@public.gmane.org> 2018-03-05 10:20 ` Deng, Emily 2018-03-06 1:50 ` Deng, Emily @ 2018-03-06 3:14 ` Deucher, Alexander 2 siblings, 0 replies; 6+ messages in thread From: Deucher, Alexander @ 2018-03-06 3:14 UTC (permalink / raw) To: Deng, Emily, amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW [-- Attachment #1.1: Type: text/plain, Size: 5160 bytes --] Acked-by: Alex Deucher <alexander.deucher-5C7GfCeVMHo@public.gmane.org> ________________________________ From: amd-gfx <amd-gfx-bounces-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org> on behalf of Emily Deng <Emily.Deng-5C7GfCeVMHo@public.gmane.org> Sent: Thursday, March 1, 2018 10:31 PM To: amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org Cc: Deng, Emily Subject: [PATCH] Revert "drm/amdgpu: use polling mem to set SDMA3 wptr for VF" This reverts commit 2ffe31deb27579e2f2c9444e01f4d8abf385d145. The sdma wptr poll memomy doesn't have the same efficiency as doorbell, and it will make sdma hang when running tests. Change-Id: I6e334430b309b0c21aa18a08764320c7ff51e353 Signed-off-by: Emily Deng <Emily.Deng-5C7GfCeVMHo@public.gmane.org> --- drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h | 1 - drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c | 27 ++++++++------------------- 2 files changed, 8 insertions(+), 20 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h index 102dad3..5dcf98b 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h @@ -186,7 +186,6 @@ struct amdgpu_ring { uint64_t eop_gpu_addr; u32 doorbell_index; bool use_doorbell; - bool use_pollmem; unsigned wptr_offs; unsigned fence_offs; uint64_t current_ctx; diff --git a/drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c b/drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c index 521978c..d3fb3ca 100644 --- a/drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c +++ b/drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c @@ -355,7 +355,7 @@ static uint64_t sdma_v3_0_ring_get_wptr(struct amdgpu_ring *ring) struct amdgpu_device *adev = ring->adev; u32 wptr; - if (ring->use_doorbell || ring->use_pollmem) { + if (ring->use_doorbell) { /* XXX check if swapping is necessary on BE */ wptr = ring->adev->wb.wb[ring->wptr_offs] >> 2; } else { @@ -380,13 +380,10 @@ static void sdma_v3_0_ring_set_wptr(struct amdgpu_ring *ring) if (ring->use_doorbell) { u32 *wb = (u32 *)&adev->wb.wb[ring->wptr_offs]; + /* XXX check if swapping is necessary on BE */ WRITE_ONCE(*wb, (lower_32_bits(ring->wptr) << 2)); WDOORBELL32(ring->doorbell_index, lower_32_bits(ring->wptr) << 2); - } else if (ring->use_pollmem) { - u32 *wb = (u32 *)&adev->wb.wb[ring->wptr_offs]; - - WRITE_ONCE(*wb, (lower_32_bits(ring->wptr) << 2)); } else { int me = (ring == &ring->adev->sdma.instance[0].ring) ? 0 : 1; @@ -719,14 +716,10 @@ static int sdma_v3_0_gfx_resume(struct amdgpu_device *adev) WREG32(mmSDMA0_GFX_RB_WPTR_POLL_ADDR_HI + sdma_offsets[i], upper_32_bits(wptr_gpu_addr)); wptr_poll_cntl = RREG32(mmSDMA0_GFX_RB_WPTR_POLL_CNTL + sdma_offsets[i]); - if (ring->use_pollmem) - wptr_poll_cntl = REG_SET_FIELD(wptr_poll_cntl, - SDMA0_GFX_RB_WPTR_POLL_CNTL, - ENABLE, 1); + if (amdgpu_sriov_vf(adev)) + wptr_poll_cntl = REG_SET_FIELD(wptr_poll_cntl, SDMA0_GFX_RB_WPTR_POLL_CNTL, F32_POLL_ENABLE, 1); else - wptr_poll_cntl = REG_SET_FIELD(wptr_poll_cntl, - SDMA0_GFX_RB_WPTR_POLL_CNTL, - ENABLE, 0); + wptr_poll_cntl = REG_SET_FIELD(wptr_poll_cntl, SDMA0_GFX_RB_WPTR_POLL_CNTL, F32_POLL_ENABLE, 0); WREG32(mmSDMA0_GFX_RB_WPTR_POLL_CNTL + sdma_offsets[i], wptr_poll_cntl); /* enable DMA RB */ @@ -1208,13 +1201,9 @@ static int sdma_v3_0_sw_init(void *handle) for (i = 0; i < adev->sdma.num_instances; i++) { ring = &adev->sdma.instance[i].ring; ring->ring_obj = NULL; - if (!amdgpu_sriov_vf(adev)) { - ring->use_doorbell = true; - ring->doorbell_index = (i == 0) ? - AMDGPU_DOORBELL_sDMA_ENGINE0 : AMDGPU_DOORBELL_sDMA_ENGINE1; - } else { - ring->use_pollmem = true; - } + ring->use_doorbell = true; + ring->doorbell_index = (i == 0) ? + AMDGPU_DOORBELL_sDMA_ENGINE0 : AMDGPU_DOORBELL_sDMA_ENGINE1; sprintf(ring->name, "sdma%d", i); r = amdgpu_ring_init(adev, ring, 1024, -- 2.7.4 _______________________________________________ amd-gfx mailing list amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org https://lists.freedesktop.org/mailman/listinfo/amd-gfx [-- Attachment #1.2: Type: text/html, Size: 12264 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 related [flat|nested] 6+ messages in thread
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2018-03-02 3:31 [PATCH] Revert "drm/amdgpu: use polling mem to set SDMA3 wptr for VF" Emily Deng
[not found] ` <1519961490-2813-1-git-send-email-Emily.Deng-5C7GfCeVMHo@public.gmane.org>
2018-03-05 10:20 ` Deng, Emily
[not found] ` <CY4PR12MB11253B1EA35C42340A0B1D118FDA0-rpdhrqHFk07v2MZdTKcfDgdYzm3356FpvxpqHgZTriW3zl9H0oFU5g@public.gmane.org>
2018-03-05 10:53 ` Liu, Monk
2018-03-06 1:50 ` Deng, Emily
[not found] ` <CY4PR12MB11256AD429333AD64D632D3D8FD90-rpdhrqHFk07v2MZdTKcfDgdYzm3356FpvxpqHgZTriW3zl9H0oFU5g@public.gmane.org>
2018-03-06 8:57 ` Deng, Emily
2018-03-06 3:14 ` Deucher, Alexander
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