From: Prike Liang Date: Tue, 6 Jan 2026 09:00:57 +0000 (+0800) Subject: drm/amdgpu: validate the flush_gpu_tlb_pasid() X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f4db9913e4d3dabe9ff3ea6178f2c1bc286012b8;p=thirdparty%2Fkernel%2Flinux.git drm/amdgpu: validate the flush_gpu_tlb_pasid() Validate flush_gpu_tlb_pasid() availability before flushing tlb. Signed-off-by: Prike Liang Reviewed-by: Christian König Signed-off-by: Alex Deucher --- diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c index 6d7b8bb953ae..0e67fa4338ff 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c @@ -780,6 +780,10 @@ int amdgpu_gmc_flush_gpu_tlb_pasid(struct amdgpu_device *adev, uint16_t pasid, return 0; if (!adev->gmc.flush_pasid_uses_kiq || !ring->sched.ready) { + + if (!adev->gmc.gmc_funcs->flush_gpu_tlb_pasid) + return 0; + if (adev->gmc.flush_tlb_needs_extra_type_2) adev->gmc.gmc_funcs->flush_gpu_tlb_pasid(adev, pasid, 2, all_hub,