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authorChris Wilson <chris@chris-wilson.co.uk>2019-05-28 10:29:51 +0100
committerChris Wilson <chris@chris-wilson.co.uk>2019-05-28 12:45:29 +0100
commit6951e5893b4821f68a48022842f67c3033ca7b30 (patch)
treebc7d39fb7ae0b8ba3967646059ac40b931ae3ed8 /drivers/gpu/drm/i915/gem/i915_gem_object.h
parent37d63f8fdb4941b6a82ef9e59bee62a494225c7e (diff)
drm/i915: Move GEM object domain management from struct_mutex to local
Use the per-object local lock to control the cache domain of the individual GEM objects, not struct_mutex. This is a huge leap forward for us in terms of object-level synchronisation; execbuffers are coordinated using the ww_mutex and pread/pwrite is finally fully serialised again. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Matthew Auld <matthew.auld@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190528092956.14910-10-chris@chris-wilson.co.uk
Diffstat (limited to 'drivers/gpu/drm/i915/gem/i915_gem_object.h')
-rw-r--r--drivers/gpu/drm/i915/gem/i915_gem_object.h14
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_object.h b/drivers/gpu/drm/i915/gem/i915_gem_object.h
index 8cf082abb0ab..b0488517e945 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_object.h
+++ b/drivers/gpu/drm/i915/gem/i915_gem_object.h
@@ -99,16 +99,29 @@ i915_gem_object_put(struct drm_i915_gem_object *obj)
__drm_gem_object_put(&obj->base);
}
+#define assert_object_held(obj) reservation_object_assert_held((obj)->resv)
+
static inline void i915_gem_object_lock(struct drm_i915_gem_object *obj)
{
reservation_object_lock(obj->resv, NULL);
}
+static inline int
+i915_gem_object_lock_interruptible(struct drm_i915_gem_object *obj)
+{
+ return reservation_object_lock_interruptible(obj->resv, NULL);
+}
+
static inline void i915_gem_object_unlock(struct drm_i915_gem_object *obj)
{
reservation_object_unlock(obj->resv);
}
+struct dma_fence *
+i915_gem_object_lock_fence(struct drm_i915_gem_object *obj);
+void i915_gem_object_unlock_fence(struct drm_i915_gem_object *obj,
+ struct dma_fence *fence);
+
static inline void
i915_gem_object_set_readonly(struct drm_i915_gem_object *obj)
{
@@ -372,6 +385,7 @@ static inline void
i915_gem_object_finish_access(struct drm_i915_gem_object *obj)
{
i915_gem_object_unpin_pages(obj);
+ i915_gem_object_unlock(obj);
}
static inline struct intel_engine_cs *