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drm/amdgpu: make display pinning more flexible (v2)

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commit 81d0bcf990 upstream.

Only apply the static threshold for Stoney and Carrizo.
This hardware has certain requirements that don't allow
mixing of GTT and VRAM.  Newer asics do not have these
requirements so we should be able to be more flexible
with where buffers end up.

Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/2270
Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/2291
Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/2255
Acked-by: Luben Tuikov <luben.tuikov@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Alex Deucher 2022-12-07 11:08:53 -05:00 • committed by Greg Kroah-Hartman
commit 6302709784
1 changed files with 2 additions and 1 deletions
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3
drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
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@ -1531,7 +1531,8 @@ u64 amdgpu_bo_gpu_offset_no_check(struct amdgpu_bo *bo)
uint32_t amdgpu_bo_get_preferred_pin_domain(struct amdgpu_device *adev,
uint32_t domain)
{
if (domain == (AMDGPU_GEM_DOMAIN_VRAM | AMDGPU_GEM_DOMAIN_GTT)) {
if ((domain == (AMDGPU_GEM_DOMAIN_VRAM | AMDGPU_GEM_DOMAIN_GTT)) &&
((adev->asic_type == CHIP_CARRIZO) || (adev->asic_type == CHIP_STONEY))) {
domain = AMDGPU_GEM_DOMAIN_VRAM;
if (adev->gmc.real_vram_size <= AMDGPU_SG_THRESHOLD)
domain = AMDGPU_GEM_DOMAIN_GTT;