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authorChris Wilson <chris@chris-wilson.co.uk>2019-08-22 07:09:12 +0100
committerChris Wilson <chris@chris-wilson.co.uk>2019-08-22 08:53:40 +0100
commite2ccc50a3a6c90cace6a9aef40072e558dd13863 (patch)
treea66f4aa9b6f2825955aca14a3cf6cef705a056ac /drivers/gpu/drm/i915/i915_gem_fence_reg.h
parent8e458fe2ee05cf3fb1fb6bf9857e71e15c4d7441 (diff)
drm/i915: Track ggtt fence reservations under its own mutex
We can reduce the locking for fence registers from the dev->struct_mutex to a local mutex. We could introduce a mutex for the sole purpose of tracking the fence acquisition, except there is a little bit of overlap with the fault tracking, so use the i915_ggtt.mutex as it covers both. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com> Reviewed-by: Matthew Auld <matthew.auld@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190822060914.2671-1-chris@chris-wilson.co.uk
Diffstat (limited to 'drivers/gpu/drm/i915/i915_gem_fence_reg.h')
-rw-r--r--drivers/gpu/drm/i915/i915_gem_fence_reg.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem_fence_reg.h b/drivers/gpu/drm/i915/i915_gem_fence_reg.h
index 37e4f104f7c0..99866fb9d94f 100644
--- a/drivers/gpu/drm/i915/i915_gem_fence_reg.h
+++ b/drivers/gpu/drm/i915/i915_gem_fence_reg.h
@@ -41,7 +41,7 @@ struct i915_fence_reg {
struct list_head link;
struct drm_i915_private *i915;
struct i915_vma *vma;
- int pin_count;
+ atomic_t pin_count;
int id;
/**
* Whether the tiling parameters for the currently