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authorChristian König <christian.koenig@amd.com>2021-11-16 15:20:45 +0100
committerChristian König <christian.koenig@amd.com>2022-04-06 17:38:25 +0200
commitc8d4c18bfbc4ab467188dbe45cc8155759f49d9e (patch)
treec0ecbde97d8d89bed2d7f87a93788bc86d5e56ea /drivers/gpu/drm/i915/gem/i915_gem_clflush.c
parentdrm/drm_modeset_helper_vtables.h: fix a typo (diff)
downloadlinux-dev-c8d4c18bfbc4ab467188dbe45cc8155759f49d9e.tar.xz
linux-dev-c8d4c18bfbc4ab467188dbe45cc8155759f49d9e.zip
dma-buf/drivers: make reserving a shared slot mandatory v4
Audit all the users of dma_resv_add_excl_fence() and make sure they reserve a shared slot also when only trying to add an exclusive fence. This is the next step towards handling the exclusive fence like a shared one. v2: fix missed case in amdgpu v3: and two more radeon, rename function v4: add one more case to TTM, fix i915 after rebase Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20220406075132.3263-2-christian.koenig@amd.com
Diffstat (limited to 'drivers/gpu/drm/i915/gem/i915_gem_clflush.c')
-rw-r--r--drivers/gpu/drm/i915/gem/i915_gem_clflush.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_clflush.c b/drivers/gpu/drm/i915/gem/i915_gem_clflush.c
index ce91b23385cf..1fd0cc9ca213 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_clflush.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_clflush.c
@@ -108,7 +108,8 @@ bool i915_gem_clflush_object(struct drm_i915_gem_object *obj,
trace_i915_gem_object_clflush(obj);
clflush = NULL;
- if (!(flags & I915_CLFLUSH_SYNC))
+ if (!(flags & I915_CLFLUSH_SYNC) &&
+ dma_resv_reserve_fences(obj->base.resv, 1) == 0)
clflush = clflush_work_create(obj);
if (clflush) {
i915_sw_fence_await_reservation(&clflush->base.chain,