kernel/linux.git/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c, branch linux-4.20.y

drm/amdgpu: use spin_lock_irqsave to protect vm_manager.pasid_idr

2019-03-13T21:04:16+00:00

[ Upstream commit 0a5f49cbf9d6ad3721c16f8a6d823363ea7a160f ] amdgpu_vm_get_task_info is called from interrupt handler and sched timeout workqueue, we should use irq version spin_lock to avoid deadlock. Signed-off-by: Philip Yang Reviewed-by: Christian König Signed-off-by: Alex Deucher Signed-off-by: Sasha Levin

drm/amdgpu: disable bulk moves for now

2019-02-27T09:09:55+00:00

commit a213c2c7e235cfc0e0a161a558f7fdf2fb3a624a upstream. The changes to fix those are two invasive for backporting. Just disable the feature in 4.20 and 5.0. Acked-by: Alex Deucher Signed-off-by: Christian König Cc: [4.20+] Signed-off-by: Alex Deucher Signed-off-by: Greg Kroah-Hartman

drm/amdgpu: disable system memory page tables for now

2019-02-20T09:29:05+00:00

[ Upstream commit 1c1eba86339c8517814863bc7dd21e2661a84e77 ] We hit a problem with IOMMU with that. Disable until we have time to debug further. Signed-off-by: Christian König Reviewed-by: Michel Dänzer Signed-off-by: Alex Deucher Signed-off-by: Sasha Levin

drm/amdgpu: Avoid endless loop in GPUVM fragment processing

2018-11-28T19:38:48+00:00

Don't bounce back to the root level for fragment processing, because huge pages are not supported at that level. This is unlikely to happen with the default VM size on Vega, but can be exposed by limiting the VM size with the amdgpu.vm_size module parameter. Signed-off-by: Felix Kuehling Reviewed-by: Christian König Signed-off-by: Alex Deucher

drm/amdgpu: Cast to uint64_t before left shift

2018-11-28T19:38:33+00:00

Avoid potential integer overflows with left shift in huge-page mapping code by casting the operand to uin64_t first. Signed-off-by: Felix Kuehling Reviewed-by: Christian König Signed-off-by: Alex Deucher

drm/amdgpu: fix huge page handling on Vega10

2018-11-13T15:21:00+00:00

We accidentially set the huge flag on the parent instead of the childs. This caused some VM faults under memory pressure. Signed-off-by: Christian König Acked-by: Alex Deucher Tested-by: Samuel Pitoiset Reviewed-by: Felix Kuehling Signed-off-by: Alex Deucher Cc: stable@vger.kernel.org

drm/amdgpu: fix VM leaf walking

2018-10-26T18:27:06+00:00

Make sure we don't try to go down further after the leave walk already ended. This fixes a crash with a new VM test. Signed-off-by: Christian König Reviewed-by: Felix Kuehling Acked-by: Alex Deucher Tested-by: Rex Zhu Rex.Zhu@amd.com Signed-off-by: Alex Deucher

drm/amdgpu: fix amdgpu_vm_fini

2018-10-25T19:04:40+00:00

We should not remove mappings in rbtree_postorder_for_each_entry_safe because that rebalances the tree. Signed-off-by: Christian König Reviewed-by: Chunming Zhou Signed-off-by: Alex Deucher

drm/amdgpu: fix parameter documentation for amdgpu_vm_free_pts

2018-09-19T17:35:01+00:00

The function was modified without updating the documentation. Signed-off-by: Christian König Reviewed-by: Huang Rui Signed-off-by: Alex Deucher

drm/amdgpu: add amdgpu_vm_entries_mask v2

2018-09-19T17:34:41+00:00

We can't get the mask for the root directory from the number of entries. So add a new function to avoid that problem. v2: fix typo in mask Signed-off-by: Christian König Reviewed-by: Huang Rui Signed-off-by: Alex Deucher