diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c | 36 |
1 files changed, 34 insertions, 2 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c index f91cc149d06c..7d26a962f811 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c @@ -456,6 +456,7 @@ static int amdgpu_vram_mgr_new(struct ttm_resource_manager *man, u64 vis_usage = 0, max_bytes, min_block_size; struct amdgpu_vram_mgr_resource *vres; u64 size, remaining_size, lpfn, fpfn; + unsigned int adjust_dcc_size = 0; struct drm_buddy *mm = &mgr->mm; struct drm_buddy_block *block; unsigned long pages_per_block; @@ -511,7 +512,19 @@ static int amdgpu_vram_mgr_new(struct ttm_resource_manager *man, /* Allocate blocks in desired range */ vres->flags |= DRM_BUDDY_RANGE_ALLOCATION; + if (bo->flags & AMDGPU_GEM_CREATE_GFX12_DCC && + adev->gmc.gmc_funcs->get_dcc_alignment) + adjust_dcc_size = amdgpu_gmc_get_dcc_alignment(adev); + remaining_size = (u64)vres->base.size; + if (bo->flags & AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS && adjust_dcc_size) { + unsigned int dcc_size; + + dcc_size = roundup_pow_of_two(vres->base.size + adjust_dcc_size); + remaining_size = (u64)dcc_size; + + vres->flags |= DRM_BUDDY_TRIM_DISABLE; + } mutex_lock(&mgr->lock); while (remaining_size) { @@ -521,8 +534,11 @@ static int amdgpu_vram_mgr_new(struct ttm_resource_manager *man, min_block_size = mgr->default_page_size; size = remaining_size; - if ((size >= (u64)pages_per_block << PAGE_SHIFT) && - !(size & (((u64)pages_per_block << PAGE_SHIFT) - 1))) + + if (bo->flags & AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS && adjust_dcc_size) + min_block_size = size; + else if ((size >= (u64)pages_per_block << PAGE_SHIFT) && + !(size & (((u64)pages_per_block << PAGE_SHIFT) - 1))) min_block_size = (u64)pages_per_block << PAGE_SHIFT; BUG_ON(min_block_size < mm->chunk_size); @@ -553,6 +569,22 @@ static int amdgpu_vram_mgr_new(struct ttm_resource_manager *man, } mutex_unlock(&mgr->lock); + if (bo->flags & AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS && adjust_dcc_size) { + struct drm_buddy_block *dcc_block; + unsigned long dcc_start; + u64 trim_start; + + dcc_block = amdgpu_vram_mgr_first_block(&vres->blocks); + /* Adjust the start address for DCC buffers only */ + dcc_start = + roundup((unsigned long)amdgpu_vram_mgr_block_start(dcc_block), + adjust_dcc_size); + trim_start = (u64)dcc_start; + drm_buddy_block_trim(mm, &trim_start, + (u64)vres->base.size, + &vres->blocks); + } + vres->base.start = 0; size = max_t(u64, amdgpu_vram_mgr_blocks_size(&vres->blocks), vres->base.size); |