kernel/linux.git/drivers/gpu/drm/amd/amdgpu/amdgpu_csa.c, branch v6.6.132

drm/amdgpu: csa unmap use uninterruptible lock

2026-01-30T09:27:43+00:00

[ Upstream commit a0fa7873f2f869087b1e7793f7fac3713a1e3afe ] After process exit to unmap csa and free GPU vm, if signal is accepted and then waiting to take vm lock is interrupted and return, it causes memory leaking and below warning backtrace. Change to use uninterruptible wait lock fix the issue. WARNING: CPU: 69 PID: 167800 at amd/amdgpu/amdgpu_kms.c:1525 amdgpu_driver_postclose_kms+0x294/0x2a0 [amdgpu] Call Trace: drm_file_free.part.0+0x1da/0x230 [drm] drm_close_helper.isra.0+0x65/0x70 [drm] drm_release+0x6a/0x120 [drm] amdgpu_drm_release+0x51/0x60 [amdgpu] __fput+0x9f/0x280 ____fput+0xe/0x20 task_work_run+0x67/0xa0 do_exit+0x217/0x3c0 do_group_exit+0x3b/0xb0 get_signal+0x14a/0x8d0 arch_do_signal_or_restart+0xde/0x100 exit_to_user_mode_loop+0xc1/0x1a0 exit_to_user_mode_prepare+0xf4/0x100 syscall_exit_to_user_mode+0x17/0x40 do_syscall_64+0x69/0xc0 Signed-off-by: Philip Yang Reviewed-by: Christian König Signed-off-by: Alex Deucher (cherry picked from commit 7dbbfb3c171a6f63b01165958629c9c26abf38ab) Cc: stable@vger.kernel.org [The third parameter of drm_exec_init() was introduced by commit 05d249352f1a ("drm/exec: Pass in initial # of objects") after Linux 6.8. This code targets linux 6.6, so the current implementation is used and the third parameter is not needed.] Signed-off-by: Li hongliang <1468888505@139.com> Signed-off-by: Greg Kroah-Hartman

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

2025-09-04T13:30:27+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

2025-08-28T14:28:30+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: use drm_exec for GEM and CSA handling v2

2023-07-12T12:14:36+00:00

Start using the new component here as well. v2: ignore duplicates to allow per VM BO mappings Signed-off-by: Christian König Acked-by: Alex Deucher Link: https://patchwork.freedesktop.org/patch/msgid/20230711133122.3710-5-christian.koenig@amd.com

drm/amdgpu: unmap and remove csa_va properly

2023-06-09T16:47:26+00:00

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

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