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radv/amdgpu: add support for AMDGPU_GEM_CREATE_GFX12_DCC

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This flags will be used to set PTE.DCC to VRAM allocations
(ie. compression).

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/33284>
This commit is contained in:
Samuel Pitoiset 2025-01-24 07:30:01 -08:00 • committed by Marge Bot
parent 5ac72c5f56
commit d6f9c19755
2 changed files with 10 additions and 0 deletions
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2
src/amd/vulkan/radv_radeon_winsys.h
View file

@ -49,6 +49,7 @@ enum radeon_bo_flag { /* bitfield */
RADEON_FLAG_ZERO_VRAM = (1 << 10),
RADEON_FLAG_REPLAYABLE = (1 << 11),
RADEON_FLAG_DISCARDABLE = (1 << 12),
RADEON_FLAG_GFX12_ALLOW_DCC = (1 << 13),
};
enum radeon_ctx_priority {
@ -173,6 +174,7 @@ struct radeon_winsys_bo {
bool vram_no_cpu_access;
/* buffer is added to the BO list of all submissions */
bool use_global_list;
bool gfx12_allow_dcc;
enum radeon_bo_domain initial_domain;
};

8
src/amd/vulkan/winsys/amdgpu/radv_amdgpu_bo.c
View file

@ -512,6 +512,12 @@ radv_amdgpu_winsys_bo_create(struct radeon_winsys *_ws, uint64_t size, unsigned
if (flags & RADEON_FLAG_DISCARDABLE && ws->info.drm_minor >= 47)
request.flags |= AMDGPU_GEM_CREATE_DISCARDABLE;
if (flags & RADEON_FLAG_GFX12_ALLOW_DCC && ws->info.drm_minor >= 58) {
assert(ws->info.gfx_level >= GFX12 && (initial_domain & RADEON_DOMAIN_VRAM));
bo->base.gfx12_allow_dcc = true;
request.flags |= AMDGPU_GEM_CREATE_GFX12_DCC;
}
r = ac_drm_bo_alloc(ws->dev, &request, &buf_handle);
if (r) {
fprintf(stderr, "radv/amdgpu: Failed to allocate a buffer:\n");
@ -905,6 +911,8 @@ radv_amdgpu_bo_get_flags_from_fd(struct radeon_winsys *_ws, int fd, enum radeon_
*flags |= RADEON_FLAG_NO_INTERPROCESS_SHARING | RADEON_FLAG_PREFER_LOCAL_BO;
if (info.alloc_flags & AMDGPU_GEM_CREATE_VRAM_CLEARED)
*flags |= RADEON_FLAG_ZERO_VRAM;
if (info.alloc_flags & AMDGPU_GEM_CREATE_GFX12_DCC)
*flags |= RADEON_FLAG_GFX12_ALLOW_DCC;
return true;
}