mirrors/linux
2
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2026-07-25 12:09:17 -04:00
Code Issues Packages Projects Releases Wiki Activity

drm/panthor: Don't call drm_gpuvm_bo_extobj_add() if the object is private

Browse Source 
drm_gpuvm_bo_extobj_add() is a NOP if the object is private, but it
forces us to take/release the VM resv lock, so let's do that only when
we know the object can be shared.

v3:
- New commit

v4:
- Collect R-bs

v5:
- No changes

v6:
- No changes

v7:
- No changes

Reviewed-by: Steven Price <steven.price@arm.com>
Reviewed-by: Liviu Dudau <liviu.dudau@arm.com>
Link: https://patch.msgid.link/20260401134854.2275433-6-boris.brezillon@collabora.com
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
This commit is contained in:
Boris Brezillon
2026-04-01 15:48:49 +02:00
parent f36adaaf3d
commit 2b207c47c9
1 changed files with 5 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
drivers/gpu/drm/panthor/panthor_mmu.c
View File

@@ -1278,9 +1278,11 @@ static int panthor_vm_prepare_map_op_ctx(struct panthor_vm_op_ctx *op_ctx,
}
/* Insert BO into the extobj list last, when we know nothing can fail. */
dma_resv_lock(panthor_vm_resv(vm), NULL);
drm_gpuvm_bo_extobj_add(op_ctx->map.vm_bo);
dma_resv_unlock(panthor_vm_resv(vm));
if (bo->base.base.resv != panthor_vm_resv(vm)) {
dma_resv_lock(panthor_vm_resv(vm), NULL);
drm_gpuvm_bo_extobj_add(op_ctx->map.vm_bo);
dma_resv_unlock(panthor_vm_resv(vm));
}
return 0;