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drm/amdgpu: support for DCC feature

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Deal with AMDGPU_GEM_CREATE_GFX12_DCC to set DCC bit
when needed.

Signed-off-by: Likun Gao <Likun.Gao@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Likun Gao 2024-01-11 16:44:55 +08:00 committed by Alex Deucher
parent 6b83b94a94
commit 7c85e97083
2 changed files with 9 additions and 0 deletions
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6
drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
View File

@ -334,6 +334,7 @@ int amdgpu_gem_create_ioctl(struct drm_device *dev, void *data,
AMDGPU_GEM_CREATE_VM_ALWAYS_VALID |
AMDGPU_GEM_CREATE_EXPLICIT_SYNC |
AMDGPU_GEM_CREATE_ENCRYPTED |
AMDGPU_GEM_CREATE_GFX12_DCC |
AMDGPU_GEM_CREATE_DISCARDABLE))
return -EINVAL;
@ -341,6 +342,11 @@ int amdgpu_gem_create_ioctl(struct drm_device *dev, void *data,
if (args->in.domains & ~AMDGPU_GEM_DOMAIN_MASK)
return -EINVAL;
if ((flags & AMDGPU_GEM_CREATE_GFX12_DCC) &&
((amdgpu_ip_version(adev, GC_HWIP, 0) < IP_VERSION(12, 0, 0)) ||
!(args->in.domains & AMDGPU_GEM_DOMAIN_VRAM)))
return -EINVAL;
if (!amdgpu_is_tmz(adev) && (flags & AMDGPU_GEM_CREATE_ENCRYPTED)) {
DRM_NOTE_ONCE("Cannot allocate secure buffer since TMZ is disabled\n");
return -EINVAL;

3
drivers/gpu/drm/amd/amdgpu/gmc_v12_0.c
View File

@ -532,6 +532,9 @@ static void gmc_v12_0_get_vm_pte(struct amdgpu_device *adev,
is_system = (bo->tbo.resource->mem_type == TTM_PL_TT) ||
(bo->tbo.resource->mem_type == AMDGPU_PL_PREEMPT);
if (bo && bo->flags & AMDGPU_GEM_CREATE_GFX12_DCC)
*flags |= AMDGPU_PTE_DCC;
/* WA for HW bug */
if (is_system || ((bo_adev != adev) && coherent))
*flags = AMDGPU_PTE_MTYPE_GFX12(*flags, MTYPE_NC);