kernel/linux.git/drivers/gpu/drm/amd/amdgpu/amdgpu_csa.c, branch v6.1.168

drm/amdgpu: unmap and remove csa_va properly

2026-03-25T10:03:18+00:00

[ Upstream commit 5daff15cd013422bc6d1efcfe82b586800025384 ] Root PD BO should be reserved before unmap and remove a bo_va from VM otherwise lockdep will complain. v2: check fpriv->csa_va is not NULL instead of amdgpu_mcbp (christian) [14616.936827] WARNING: CPU: 6 PID: 1711 at drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c:1762 amdgpu_vm_bo_del+0x399/0x3f0 [amdgpu] [14616.937096] Call Trace: [14616.937097] [14616.937102] amdgpu_driver_postclose_kms+0x249/0x2f0 [amdgpu] [14616.937187] drm_file_free+0x1d6/0x300 [drm] [14616.937207] drm_close_helper.isra.0+0x62/0x70 [drm] [14616.937220] drm_release+0x5e/0x100 [drm] [14616.937234] __fput+0x9f/0x280 [14616.937239] ____fput+0xe/0x20 [14616.937241] task_work_run+0x61/0x90 [14616.937246] exit_to_user_mode_prepare+0x215/0x220 [14616.937251] syscall_exit_to_user_mode+0x2a/0x60 [14616.937254] do_syscall_64+0x48/0x90 [14616.937257] entry_SYSCALL_64_after_hwframe+0x63/0xcd Signed-off-by: Lang Yu Acked-by: Christian König Signed-off-by: Alex Deucher [ The context change is due to the commit 8a1fbb4a5ec2 ("drm/amdgpu: Disable MCBP from soc21 for SRIOV") in v6.2 which is irrelevant to the logic of this patch. ] Signed-off-by: Johnny Hao Signed-off-by: Greg Kroah-Hartman

Revert "drm/amdgpu: fix incorrect vm flags to map bo"

2025-09-04T13:26:30+00:00

commit ac4ed2da4c1305a1a002415058aa7deaf49ffe3e upstream. This reverts commit b08425fa77ad2f305fe57a33dceb456be03b653f. Revert this to align with 6.17 because the fixes tag was wrong on this commit. Signed-off-by: Alex Deucher (cherry picked from commit be33e8a239aac204d7e9e673c4220ef244eb1ba3) Signed-off-by: Greg Kroah-Hartman

drm/amdgpu: fix incorrect vm flags to map bo

2025-08-28T14:26:03+00:00

[ Upstream commit 040bc6d0e0e9c814c9c663f6f1544ebaff6824a8 ] It should use vm flags instead of pte flags to specify bo vm attributes. Fixes: 7946340fa389 ("drm/amdgpu: Move csa related code to separate file") Signed-off-by: Jack Xiao Reviewed-by: Likun Gao Signed-off-by: Alex Deucher (cherry picked from commit b08425fa77ad2f305fe57a33dceb456be03b653f) Signed-off-by: Sasha Levin

drm/amdgpu: rename amdgpu_vm_bo_rmv to _del

2022-02-07T22:14:10+00:00

Some people complained about the name and this matches much more Linux naming conventions for object functions. Signed-off-by: Christian König Reviewed-by: Alex Deucher Reviewed-by: Felix Kuehling Acked-by: Daniel Vetter Signed-off-by: Alex Deucher

drm/amd/amdgpu/amdgpu_csa: Remove set but unused variable 'r'

2020-11-13T22:29:46+00:00

Fixes the following W=1 kernel build warning(s): drivers/gpu/drm/amd/amdgpu/amdgpu_csa.c: In function ‘amdgpu_allocate_static_csa’: drivers/gpu/drm/amd/amdgpu/amdgpu_csa.c:40:6: warning: variable ‘r’ set but not used [-Wunused-but-set-variable] Cc: Alex Deucher Cc: "Christian König" Cc: David Airlie Cc: Daniel Vetter Cc: Monk.liu@amd.com Cc: amd-gfx@lists.freedesktop.org Cc: dri-devel@lists.freedesktop.org Signed-off-by: Lee Jones Signed-off-by: Alex Deucher

drm/ttm: always keep BOs on the LRU

2019-10-25T09:40:50+00:00

This allows blocking for BOs to become available in the memory management. Amdgpu is doing this for quite a while now during CS. Now apply the new behavior to all drivers using TTM. Signed-off-by: Christian König Acked-by: Thomas Hellstrom Link: https://patchwork.freedesktop.org/patch/332878/

drm/amdgpu: program for resuming preempted ib

2019-06-21T23:57:40+00:00

For new submission ib, CE/DE metadata should be programmed to 0; for partially execution ib, CE/DE metadata should be restored. Acked-by: Alex Deucher Reviewed-by: Hawking Zhang Signed-off-by: Jack Xiao Signed-off-by: Alex Deucher

drm/amdgpu: stop removing BOs from the LRU v3

2019-06-11T16:52:19+00:00

This avoids OOM situations when we have lots of threads submitting at the same time. v3: apply this to the whole driver, not just CS Signed-off-by: Christian König Reviewed-by: Chunming Zhou Tested-by: Pierre-Eric Pelloux-Prayer Signed-off-by: Alex Deucher

drm/ttm: Make LRU removal optional v2

2019-05-31T15:39:34+00:00

We are already doing this for DMA-buf imports and also for amdgpu VM BOs for quite a while now. If this doesn't run into any problems we are probably going to stop removing BOs from the LRU altogether. v2: drop BUG_ON from ttm_bo_add_to_lru Signed-off-by: Christian König Reviewed-by: Chunming Zhou Tested-by: Pierre-Eric Pelloux-Prayer Signed-off-by: Alex Deucher

drm/amdgpu: allocate VM PDs/PTs on demand

2019-03-19T20:36:48+00:00

Let's start to allocate VM PDs/PTs on demand instead of pre-allocating them during mapping. Signed-off-by: Christian König Reviewed-by: Felix Kuehling Acked-by: Huang Rui Signed-off-by: Alex Deucher