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| author | Philip Yang <Philip.Yang@amd.com> | 2021-04-01 00:22:23 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2021-04-21 11:10:35 -0400 |
| commit | d42a5b639d15622ece5b9dd12dafd9776efa2593 (patch) | |
| tree | b358cc7c34a96c7ef024e47f2c4a8fd785799502 | |
| parent | 796b556cbfdbe0d65b9793e63653ad24f9fa033c (diff) | |
| download | linux-d42a5b639d15622ece5b9dd12dafd9776efa2593.tar.gz | |
drm/amdgpu: reserve fence slot to update page table
Forgot to reserve a fence slot to use sdma to update page table, cause below kernel BUG backtrace to handle vm retry fault while application is exiting. [ 133.048143] kernel BUG at /home/yangp/git/compute_staging/kernel/drivers/dma-buf/dma-resv.c:281! [ 133.048487] Workqueue: events amdgpu_irq_handle_ih1 [amdgpu] [ 133.048506] RIP: 0010:dma_resv_add_shared_fence+0x204/0x280 [ 133.048672] amdgpu_vm_sdma_commit+0x134/0x220 [amdgpu] [ 133.048788] amdgpu_vm_bo_update_range+0x220/0x250 [amdgpu] [ 133.048905] amdgpu_vm_handle_fault+0x202/0x370 [amdgpu] [ 133.049031] gmc_v9_0_process_interrupt+0x1ab/0x310 [amdgpu] [ 133.049165] ? kgd2kfd_interrupt+0x9a/0x180 [amdgpu] [ 133.049289] ? amdgpu_irq_dispatch+0xb6/0x240 [amdgpu] [ 133.049408] amdgpu_irq_dispatch+0xb6/0x240 [amdgpu] [ 133.049534] amdgpu_ih_process+0x9b/0x1c0 [amdgpu] [ 133.049657] amdgpu_irq_handle_ih1+0x21/0x60 [amdgpu] [ 133.049669] process_one_work+0x29f/0x640 [ 133.049678] worker_thread+0x39/0x3f0 [ 133.049685] ? process_one_work+0x640/0x640 Signed-off-by: Philip Yang <Philip.Yang@amd.com> Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org # 5.11.x
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c index 7d2c8b169827..326dae31b675 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c @@ -3300,7 +3300,7 @@ bool amdgpu_vm_handle_fault(struct amdgpu_device *adev, u32 pasid, struct amdgpu_bo *root; uint64_t value, flags; struct amdgpu_vm *vm; - long r; + int r; spin_lock(&adev->vm_manager.pasid_lock); vm = idr_find(&adev->vm_manager.pasid_idr, pasid); @@ -3349,6 +3349,12 @@ bool amdgpu_vm_handle_fault(struct amdgpu_device *adev, u32 pasid, value = 0; } + r = dma_resv_reserve_shared(root->tbo.base.resv, 1); + if (r) { + pr_debug("failed %d to reserve fence slot\n", r); + goto error_unlock; + } + r = amdgpu_vm_bo_update_mapping(adev, adev, vm, true, false, NULL, addr, addr, flags, value, NULL, NULL, NULL); @@ -3360,7 +3366,7 @@ bool amdgpu_vm_handle_fault(struct amdgpu_device *adev, u32 pasid, error_unlock: amdgpu_bo_unreserve(root); if (r < 0) - DRM_ERROR("Can't handle page fault (%ld)\n", r); + DRM_ERROR("Can't handle page fault (%d)\n", r); error_unref: amdgpu_bo_unref(&root); |