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author | Chris Wilson <chris@chris-wilson.co.uk> | 2017-06-16 15:05:25 +0100 |
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committer | Chris Wilson <chris@chris-wilson.co.uk> | 2017-06-16 16:54:05 +0100 |
commit | 95ff7c7dd7098860bc131c7dec0ad76ca61e796a (patch) | |
tree | 5f29c1d63c00587df5ef7894ac7009aa3fe31721 /drivers/gpu/drm/i915/i915_vma.h | |
parent | 7dd4f6729f9243bd7046c6f04c107a456bda38eb (diff) | |
download | linux-stable-95ff7c7dd7098860bc131c7dec0ad76ca61e796a.tar.gz linux-stable-95ff7c7dd7098860bc131c7dec0ad76ca61e796a.tar.bz2 linux-stable-95ff7c7dd7098860bc131c7dec0ad76ca61e796a.zip |
drm/i915: Stash a pointer to the obj's resv in the vma
During execbuf, a mandatory step is that we add this request (this
fence) to each object's reservation_object. Inside execbuf, we track the
vma, and to add the fence to the reservation_object then means having to
first chase the obj, incurring another cache miss. We can reduce the
number of cache misses by stashing a pointer to the reservation_object
in the vma itself.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170616140525.6394-1-chris@chris-wilson.co.uk
Diffstat (limited to 'drivers/gpu/drm/i915/i915_vma.h')
-rw-r--r-- | drivers/gpu/drm/i915/i915_vma.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/i915_vma.h b/drivers/gpu/drm/i915/i915_vma.h index 04d7a5da70fd..4a673fc1a432 100644 --- a/drivers/gpu/drm/i915/i915_vma.h +++ b/drivers/gpu/drm/i915/i915_vma.h @@ -50,6 +50,7 @@ struct i915_vma { struct drm_i915_gem_object *obj; struct i915_address_space *vm; struct drm_i915_fence_reg *fence; + struct reservation_object *resv; /** Alias of obj->resv */ struct sg_table *pages; void __iomem *iomap; u64 size; @@ -111,8 +112,8 @@ struct i915_vma { /** * Used for performing relocations during execbuffer insertion. */ - struct hlist_node exec_node; struct drm_i915_gem_exec_object2 *exec_entry; + struct hlist_node exec_node; u32 exec_handle; struct i915_gem_context *ctx; |