Am 05.07.23 um 21:57 schrieb Rajneesh Bhardwaj:
Early release TTM BOs when the kernel default setting is init_on_free to
wipe out and reinitialize system memory chunks.
"Delay release the TTM BO when the kernels init_on_free setting is used."
This could potentially
optimize performance when an application does a lot of malloc/free style
allocations with unified system memory.
"This offloads the overhead of clearing the system memory to the work
item and potentially a different CPU. And is very beneficial when the
application does a lot of malloc/free style allocations of system memory."
With those changes to the commit message the patch is Reviewed-by:
Christian König .
I'm going to push that to drm-misc-next when you send it out once more.
Thanks,
Christian.
Signed-off-by: Rajneesh Bhardwaj
---
drivers/gpu/drm/ttm/ttm_bo.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c
index 326a3d13a829..bd2e7e4f497a 100644
--- a/drivers/gpu/drm/ttm/ttm_bo.c
+++ b/drivers/gpu/drm/ttm/ttm_bo.c
@@ -347,6 +347,7 @@ static void ttm_bo_release(struct kref *kref)
if (!dma_resv_test_signaled(bo->base.resv,
DMA_RESV_USAGE_BOOKKEEP) ||
+ (want_init_on_free() && (bo->ttm != NULL)) ||
!dma_resv_trylock(bo->base.resv)) {
/* The BO is not idle, resurrect it for delayed destroy
*/
ttm_bo_flush_all_fences(bo);
