linux/drivers/gpu/drm/amd/amdgpu/amdgpu_csa.c, branch v6.12

drm/amdkfd: Relocate TBA/TMA to opposite side of VM hole

2024-02-16T20:41:50Z

The TBA and TMA, along with an unused IB allocation, reside at low addresses in the VM address space. A stray VM fault which hits these pages must be serviced by making their page table entries invalid. The scheduler depends upon these pages being resident and fails, preventing a debugger from inspecting the failure state. By relocating these pages above 47 bits in the VM address space they can only be reached when bits [63:48] are set to 1. This makes it much less likely for a misbehaving program to generate accesses to them. The current placement at VA (PAGE_SIZE*2) is readily hit by a NULL access with a small offset. v2: - Move it to the reserved space to avoid concflicts with Mesa - Add macros to make reserved space management easier v3: - Move VM max PFN calculation into AMDGPU_VA_RESERVED macros Cc: Arunpravin Paneer Selvam Cc: Christian Koenig Reviewed-by: Christian König Signed-off-by: Jay Cornwall Signed-off-by: Felix Kuehling Signed-off-by: Alex Deucher

drm/amdgpu: Enable seq64 manager and fix bugs

2024-01-22T22:13:18Z

- Enable the seq64 mapping sequence. - Fix wflinfo va conflict and other bugs. v1: - The seq64 area needs to be included in the AMDGPU_VA_RESERVED_SIZE otherwise the areas will conflict with user space allocations (Alex) - It needs to be mapped read only in the user VM (Alex) v2: - Instead of just one define for TOP/BOTTOM reserved space separate them into two (Christian) - Fix the CPU and VA calculations and while at it also cleanup error handling and kerneldoc (Christian) Signed-off-by: Christian König Signed-off-by: Alex Deucher Signed-off-by: Arunpravin Paneer Selvam Reviewed-by: Christian König

drm/exec: Pass in initial # of objects

2023-12-10T18:38:47Z

In cases where the # is known ahead of time, it is silly to do the table resize dance. Signed-off-by: Rob Clark Reviewed-by: Christian König Patchwork: https://patchwork.freedesktop.org/patch/568338/

drm/amdgpu: use drm_exec for GEM and CSA handling v2

2023-07-12T12:14:36Z

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

2023-06-09T16:47:26Z

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

2022-02-07T22:14:10Z

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'

2020-11-13T22:29:46Z

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

2019-10-25T09:40:50Z

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

2019-06-21T23:57:40Z

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

2019-06-11T16:52:19Z

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