From 2718942f48d41c4dc1c19a7a20720633191afd2f Mon Sep 17 00:00:00 2001 From: Mukul Joshi Date: Wed, 10 Sep 2025 16:57:25 -0400 Subject: [PATCH] drm/amdgpu: add PCIe atomics bit in PTE To enable atomic access to memory, setup the new PCIe atomics bit in PTE. Signed-off-by: Mukul Joshi Reviewed-by: Alex Sierra Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h index 15d757c016cbb..d83c2a95ebea3 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h @@ -129,6 +129,7 @@ struct amdgpu_bo_vm; AMDGPU_PTE_MTYPE_GFX12_SHIFT(mtype)) #define AMDGPU_PTE_DCC (1ULL << 58) +#define AMDGPU_PTE_BUS_ATOMICS (1ULL << 59) #define AMDGPU_PTE_IS_PTE (1ULL << 63) /* PDE Block Fragment Size for gfx v12 */ -- 2.47.3