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authorChristian König <christian.koenig@amd.com>2021-09-13 11:45:31 +0200
committerChristian König <christian.koenig@amd.com>2021-11-17 14:24:15 +0100
commit1b5bdf071e62ac57ad699d60ddbd392b266f58b0 (patch)
treeadd636ca7cc6ce5da8cdcd6ff7fd9a330fcc1c7f /drivers/gpu/drm/i915/i915_sw_fence.c
parentdrm/i915: use new iterator in i915_gem_object_wait_priority (diff)
downloadlinux-1b5bdf071e62ac57ad699d60ddbd392b266f58b0.tar.xz
linux-1b5bdf071e62ac57ad699d60ddbd392b266f58b0.zip
drm/i915: use the new iterator in i915_sw_fence_await_reservation v3
Simplifying the code a bit. v2: use dma_resv_for_each_fence instead, according to Tvrtko the lock is held here anyway. v3: back to using dma_resv_for_each_fence_unlocked. Signed-off-by: Christian König <christian.koenig@amd.com> Acked-by: Daniel Vetter <daniel@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20211116102431.198905-4-christian.koenig@amd.com
Diffstat (limited to 'drivers/gpu/drm/i915/i915_sw_fence.c')
-rw-r--r--drivers/gpu/drm/i915/i915_sw_fence.c53
1 files changed, 11 insertions, 42 deletions
diff --git a/drivers/gpu/drm/i915/i915_sw_fence.c b/drivers/gpu/drm/i915/i915_sw_fence.c
index c589a681da77..7ea0dbf81530 100644
--- a/drivers/gpu/drm/i915/i915_sw_fence.c
+++ b/drivers/gpu/drm/i915/i915_sw_fence.c
@@ -572,56 +572,25 @@ int i915_sw_fence_await_reservation(struct i915_sw_fence *fence,
unsigned long timeout,
gfp_t gfp)
{
- struct dma_fence *excl;
+ struct dma_resv_iter cursor;
+ struct dma_fence *f;
int ret = 0, pending;
debug_fence_assert(fence);
might_sleep_if(gfpflags_allow_blocking(gfp));
- if (write) {
- struct dma_fence **shared;
- unsigned int count, i;
-
- ret = dma_resv_get_fences(resv, &excl, &count, &shared);
- if (ret)
- return ret;
-
- for (i = 0; i < count; i++) {
- if (shared[i]->ops == exclude)
- continue;
-
- pending = i915_sw_fence_await_dma_fence(fence,
- shared[i],
- timeout,
- gfp);
- if (pending < 0) {
- ret = pending;
- break;
- }
-
- ret |= pending;
- }
-
- for (i = 0; i < count; i++)
- dma_fence_put(shared[i]);
- kfree(shared);
- } else {
- excl = dma_resv_get_excl_unlocked(resv);
- }
-
- if (ret >= 0 && excl && excl->ops != exclude) {
- pending = i915_sw_fence_await_dma_fence(fence,
- excl,
- timeout,
+ dma_resv_iter_begin(&cursor, resv, write);
+ dma_resv_for_each_fence_unlocked(&cursor, f) {
+ pending = i915_sw_fence_await_dma_fence(fence, f, timeout,
gfp);
- if (pending < 0)
+ if (pending < 0) {
ret = pending;
- else
- ret |= pending;
- }
-
- dma_fence_put(excl);
+ break;
+ }
+ ret |= pending;
+ }
+ dma_resv_iter_end(&cursor);
return ret;
}