From: Arunpravin Paneer Selvam Date: Mon, 5 Aug 2024 13:47:04 +0000 (+0530) Subject: drm/amdgpu: Add DCC GFX12 flag to enable address alignment X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=46142cc1b9272d664e0258e105b537735bfeeccc;p=linux.git drm/amdgpu: Add DCC GFX12 flag to enable address alignment We require this flag AMDGPU_GEM_CREATE_GFX12_DCC or any other kernel level GFX12 DCC flag to differentiate the DCC buffers and other pinned display buffers(which has TTM_PL_FLAG_CONTIGUOUS enabled). If we use the TTM_PL_FLAG_CONTIGUOUS flag for DCC buffers, we may over allocate for all the pinned display buffers unnecessarily that leads to memory allocation failure. Signed-off-by: Arunpravin Paneer Selvam Acked-by: Alex Deucher Signed-off-by: Alex Deucher --- diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c index b2c94f12da9e..7d26a962f811 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c @@ -512,7 +512,8 @@ static int amdgpu_vram_mgr_new(struct ttm_resource_manager *man, /* Allocate blocks in desired range */ vres->flags |= DRM_BUDDY_RANGE_ALLOCATION; - if (adev->gmc.gmc_funcs->get_dcc_alignment) + 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;