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authorChris Wilson <chris@chris-wilson.co.uk>2020-12-23 12:20:51 +0000
committerChris Wilson <chris@chris-wilson.co.uk>2020-12-23 21:58:00 +0000
commit6d393ef5ff5cac48b44781b1c1c22aabd65eba27 (patch)
tree892196f43e904123aa4b400dafb3d5df2929d5a4 /drivers/gpu/drm/i915/gem
parentd7d82f5d5c04ed9cb68d3663ffde10898a2969be (diff)
drm/i915/gem: Optimistically prune dma-resv from the shrinker.
As we shrink an object, also see if we can prune the dma-resv of idle fences it is maintaining a reference to. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20201223122051.4624-2-chris@chris-wilson.co.uk
Diffstat (limited to 'drivers/gpu/drm/i915/gem')
-rw-r--r--drivers/gpu/drm/i915/gem/i915_gem_shrinker.c3
-rw-r--r--drivers/gpu/drm/i915/gem/i915_gem_wait.c8
2 files changed, 6 insertions, 5 deletions
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_shrinker.c b/drivers/gpu/drm/i915/gem/i915_gem_shrinker.c
index dc8f052a0ffe..c2dba1cd9532 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_shrinker.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_shrinker.c
@@ -15,6 +15,7 @@
#include "gt/intel_gt_requests.h"
+#include "dma_resv_utils.h"
#include "i915_trace.h"
static bool swap_available(void)
@@ -209,6 +210,8 @@ i915_gem_shrink(struct drm_i915_private *i915,
mutex_unlock(&obj->mm.lock);
}
+ dma_resv_prune(obj->base.resv);
+
scanned += obj->base.size >> PAGE_SHIFT;
i915_gem_object_put(obj);
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_wait.c b/drivers/gpu/drm/i915/gem/i915_gem_wait.c
index 8af55cd3e690..c1b13ac50d0f 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_wait.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_wait.c
@@ -9,6 +9,7 @@
#include "gt/intel_engine.h"
+#include "dma_resv_utils.h"
#include "i915_gem_ioctls.h"
#include "i915_gem_object.h"
@@ -84,11 +85,8 @@ i915_gem_object_wait_reservation(struct dma_resv *resv,
* Opportunistically prune the fences iff we know they have *all* been
* signaled.
*/
- if (prune_fences && dma_resv_trylock(resv)) {
- if (dma_resv_test_signaled_rcu(resv, true))
- dma_resv_add_excl_fence(resv, NULL);
- dma_resv_unlock(resv);
- }
+ if (prune_fences)
+ dma_resv_prune(resv);
return timeout;
}