From: Tao Zhou Date: Mon, 19 Feb 2024 08:03:17 +0000 (+0800) Subject: drm/amdgpu: skip GFX FED error in page fault handling X-Git-Tag: io_uring-6.10-20240523~68^2~23^2~270 X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=0c501d3c11bba2a8a5f98bbad557465ccbfb59a3;p=linux-2.6-block.git drm/amdgpu: skip GFX FED error in page fault handling Let kfd interrupt handler process it. v2: return 0 instead of 1 for fed error. drop the usage of strcmp in interrupt handler. Signed-off-by: Tao Zhou Reviewed-by: Hawking Zhang Signed-off-by: Alex Deucher --- diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c index 47b63a4ce68b..05d52b9274a9 100644 --- a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c @@ -548,7 +548,7 @@ static int gmc_v9_0_process_interrupt(struct amdgpu_device *adev, { bool retry_fault = !!(entry->src_data[1] & 0x80); bool write_fault = !!(entry->src_data[1] & 0x20); - uint32_t status = 0, cid = 0, rw = 0; + uint32_t status = 0, cid = 0, rw = 0, fed = 0; struct amdgpu_task_info *task_info; struct amdgpu_vmhub *hub; const char *mmhub_cid; @@ -664,6 +664,14 @@ static int gmc_v9_0_process_interrupt(struct amdgpu_device *adev, status = RREG32(hub->vm_l2_pro_fault_status); cid = REG_GET_FIELD(status, VM_L2_PROTECTION_FAULT_STATUS, CID); rw = REG_GET_FIELD(status, VM_L2_PROTECTION_FAULT_STATUS, RW); + fed = REG_GET_FIELD(status, VM_L2_PROTECTION_FAULT_STATUS, FED); + + /* for gfx fed error, kfd will handle it, return directly */ + if (fed && amdgpu_ras_is_poison_mode_supported(adev) && + (amdgpu_ip_version(adev, GC_HWIP, 0) >= IP_VERSION(9, 4, 2)) && + (vmhub < AMDGPU_MMHUB0_START)) + return 0; + WREG32_P(hub->vm_l2_pro_fault_cntl, 1, ~1); amdgpu_vm_update_fault_cache(adev, entry->pasid, addr, status, vmhub);