RE: [PATCH] drm/amdgpu: Use correct VIEWPORT_DIMENSION for DCN2
[Public]
> -Original Message-
> From: amd-gfx On Behalf Of
> Harry Wentland
> Sent: Wednesday, January 5, 2022 3:39 PM
> To: amd-gfx@lists.freedesktop.org; Koenig, Christian
> ; Lee, Becle ; Huang,
> Rex ; Huang, Ray
> Cc: Wentland, Harry
> Subject: [PATCH] drm/amdgpu: Use correct VIEWPORT_DIMENSION for
> DCN2
>
> For some reason this file isn't using the appropriate register headers for DCN
> headers, which means that on DCN2 we're getting the
> VIEWPORT_DIMENSION offset wrong.
>
> This means that we're not correctly carving out the framebuffer memory
> correctly for a framebuffer allocated by EFI and therefore see corruption
> when loading amdgpu before the display driver takes over control of the
> framebuffer scanout.
>
> Fix this by checking the DCE_HWIP and picking the correct offset accordingly.
>
> Long-term we should expose this info from DC as GMC shouldn't need to
> know about DCN registers.
>
> Signed-off-by: Harry Wentland
> ---
> drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c | 12 +++-
> 1 file changed, 11 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
> b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
> index 57f2729a7bd0..8367ecf61af1 100644
> --- a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
> +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
> @@ -72,6 +72,9 @@
> #define mmDCHUBBUB_SDPIF_MMIO_CNTRL_0
> 0x049d
> #define mmDCHUBBUB_SDPIF_MMIO_CNTRL_0_BASE_IDX
> 2
>
> +#define DCN2_mmHUBP0_DCSURF_PRI_VIEWPORT_DIMENSION
> 0x05ea
> +#define
> DCN2_mmHUBP0_DCSURF_PRI_VIEWPORT_DIMENSION_BASE_IDX
> 2
> +
We normally append the _DCN2 to the end in these cases of the macro. With that
fixed,
Reviewed-by: Alex Deucher
>
> static const char *gfxhub_client_ids[] = {
> "CB",
> @@ -1142,7 +1145,6 @@ static unsigned
> gmc_v9_0_get_vbios_fb_size(struct amdgpu_device *adev)
> switch (adev->ip_versions[DCE_HWIP][0]) {
> case IP_VERSION(1, 0, 0):
> case IP_VERSION(1, 0, 1):
> - case IP_VERSION(2, 1, 0):
> viewport = RREG32_SOC15(DCE, 0,
> mmHUBP0_DCSURF_PRI_VIEWPORT_DIMENSION);
> size = (REG_GET_FIELD(viewport,
>
> HUBP0_DCSURF_PRI_VIEWPORT_DIMENSION, PRI_VIEWPORT_HEIGHT) *
> @@ -1150,6 +1152,14 @@ static unsigned
> gmc_v9_0_get_vbios_fb_size(struct amdgpu_device *adev)
>
> HUBP0_DCSURF_PRI_VIEWPORT_DIMENSION, PRI_VIEWPORT_WIDTH) *
> 4);
> break;
> + case IP_VERSION(2, 1, 0):
> + viewport = RREG32_SOC15(DCE, 0,
> DCN2_mmHUBP0_DCSURF_PRI_VIEWPORT_DIMENSION);
> + size = (REG_GET_FIELD(viewport,
> +
> HUBP0_DCSURF_PRI_VIEWPORT_DIMENSION, PRI_VIEWPORT_HEIGHT) *
> + REG_GET_FIELD(viewport,
> +
> HUBP0_DCSURF_PRI_VIEWPORT_DIMENSION, PRI_VIEWPORT_WIDTH) *
> + 4);
> + break;
> default:
> viewport = RREG32_SOC15(DCE, 0,
> mmSCL0_VIEWPORT_SIZE);
> size = (REG_GET_FIELD(viewport,
> SCL0_VIEWPORT_SIZE, VIEWPORT_HEIGHT) *
> --
> 2.34.1
Re: [PATCH] drm/amdgpu: Use correct VIEWPORT_DIMENSION for DCN2
Am 05.01.22 um 21:39 schrieb Harry Wentland:
For some reason this file isn't using the appropriate register
headers for DCN headers, which means that on DCN2 we're getting
the VIEWPORT_DIMENSION offset wrong.
This means that we're not correctly carving out the framebuffer
memory correctly for a framebuffer allocated by EFI and
therefore see corruption when loading amdgpu before the display
driver takes over control of the framebuffer scanout.
Fix this by checking the DCE_HWIP and picking the correct offset
accordingly.
Long-term we should expose this info from DC as GMC shouldn't
need to know about DCN registers.
Signed-off-by: Harry Wentland
Please add a TODO comment that in the long run that code should be moved
into DC.
With that done the patch is Acked-by: Christian König
.
Thanks,
Christian.
---
drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c | 12 +++-
1 file changed, 11 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
index 57f2729a7bd0..8367ecf61af1 100644
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
@@ -72,6 +72,9 @@
#define mmDCHUBBUB_SDPIF_MMIO_CNTRL_0
0x049d
#define mmDCHUBBUB_SDPIF_MMIO_CNTRL_0_BASE_IDX
2
+#define DCN2_mmHUBP0_DCSURF_PRI_VIEWPORT_DIMENSION 0x05ea
+#define DCN2_mmHUBP0_DCSURF_PRI_VIEWPORT_DIMENSION_BASE_IDX
2
+
static const char *gfxhub_client_ids[] = {
"CB",
@@ -1142,7 +1145,6 @@ static unsigned gmc_v9_0_get_vbios_fb_size(struct
amdgpu_device *adev)
switch (adev->ip_versions[DCE_HWIP][0]) {
case IP_VERSION(1, 0, 0):
case IP_VERSION(1, 0, 1):
- case IP_VERSION(2, 1, 0):
viewport = RREG32_SOC15(DCE, 0,
mmHUBP0_DCSURF_PRI_VIEWPORT_DIMENSION);
size = (REG_GET_FIELD(viewport,
HUBP0_DCSURF_PRI_VIEWPORT_DIMENSION, PRI_VIEWPORT_HEIGHT) *
@@ -1150,6 +1152,14 @@ static unsigned gmc_v9_0_get_vbios_fb_size(struct
amdgpu_device *adev)
HUBP0_DCSURF_PRI_VIEWPORT_DIMENSION, PRI_VIEWPORT_WIDTH) *
4);
break;
+ case IP_VERSION(2, 1, 0):
+ viewport = RREG32_SOC15(DCE, 0,
DCN2_mmHUBP0_DCSURF_PRI_VIEWPORT_DIMENSION);
+ size = (REG_GET_FIELD(viewport,
+
HUBP0_DCSURF_PRI_VIEWPORT_DIMENSION, PRI_VIEWPORT_HEIGHT) *
+ REG_GET_FIELD(viewport,
+
HUBP0_DCSURF_PRI_VIEWPORT_DIMENSION, PRI_VIEWPORT_WIDTH) *
+ 4);
+ break;
default:
viewport = RREG32_SOC15(DCE, 0, mmSCL0_VIEWPORT_SIZE);
size = (REG_GET_FIELD(viewport, SCL0_VIEWPORT_SIZE,
VIEWPORT_HEIGHT) *
Re: [PATCH] drm/amdgpu: Use correct VIEWPORT_DIMENSION for DCN2
On Thu, Jan 06, 2022 at 04:39:01AM +0800, Harry Wentland wrote:
> For some reason this file isn't using the appropriate register
> headers for DCN headers, which means that on DCN2 we're getting
> the VIEWPORT_DIMENSION offset wrong.
>
> This means that we're not correctly carving out the framebuffer
> memory correctly for a framebuffer allocated by EFI and
> therefore see corruption when loading amdgpu before the display
> driver takes over control of the framebuffer scanout.
>
> Fix this by checking the DCE_HWIP and picking the correct offset
> accordingly.
>
> Long-term we should expose this info from DC as GMC shouldn't
> need to know about DCN registers.
>
> Signed-off-by: Harry Wentland
Look good for me, this patch needs to backport it to stable kernel (CC
stable mailing list).
Reviewed-by: Huang Rui
> ---
> drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c | 12 +++-
> 1 file changed, 11 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
> b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
> index 57f2729a7bd0..8367ecf61af1 100644
> --- a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
> +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
> @@ -72,6 +72,9 @@
> #define mmDCHUBBUB_SDPIF_MMIO_CNTRL_0
> 0x049d
> #define mmDCHUBBUB_SDPIF_MMIO_CNTRL_0_BASE_IDX
> 2
>
> +#define DCN2_mmHUBP0_DCSURF_PRI_VIEWPORT_DIMENSION
>0x05ea
> +#define DCN2_mmHUBP0_DCSURF_PRI_VIEWPORT_DIMENSION_BASE_IDX
>2
> +
>
> static const char *gfxhub_client_ids[] = {
> "CB",
> @@ -1142,7 +1145,6 @@ static unsigned gmc_v9_0_get_vbios_fb_size(struct
> amdgpu_device *adev)
> switch (adev->ip_versions[DCE_HWIP][0]) {
> case IP_VERSION(1, 0, 0):
> case IP_VERSION(1, 0, 1):
> - case IP_VERSION(2, 1, 0):
> viewport = RREG32_SOC15(DCE, 0,
> mmHUBP0_DCSURF_PRI_VIEWPORT_DIMENSION);
> size = (REG_GET_FIELD(viewport,
>
> HUBP0_DCSURF_PRI_VIEWPORT_DIMENSION, PRI_VIEWPORT_HEIGHT) *
> @@ -1150,6 +1152,14 @@ static unsigned gmc_v9_0_get_vbios_fb_size(struct
> amdgpu_device *adev)
>
> HUBP0_DCSURF_PRI_VIEWPORT_DIMENSION, PRI_VIEWPORT_WIDTH) *
> 4);
> break;
> + case IP_VERSION(2, 1, 0):
> + viewport = RREG32_SOC15(DCE, 0,
> DCN2_mmHUBP0_DCSURF_PRI_VIEWPORT_DIMENSION);
> + size = (REG_GET_FIELD(viewport,
> +
> HUBP0_DCSURF_PRI_VIEWPORT_DIMENSION, PRI_VIEWPORT_HEIGHT) *
> + REG_GET_FIELD(viewport,
> +
> HUBP0_DCSURF_PRI_VIEWPORT_DIMENSION, PRI_VIEWPORT_WIDTH) *
> + 4);
> + break;
> default:
> viewport = RREG32_SOC15(DCE, 0, mmSCL0_VIEWPORT_SIZE);
> size = (REG_GET_FIELD(viewport, SCL0_VIEWPORT_SIZE,
> VIEWPORT_HEIGHT) *
> --
> 2.34.1
>
