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drm/i915: Extend debugfs/i915_drop_caches to call i915_gem_shrink_all()
author
Chris Wilson
<chris@chris-wilson.co.uk>
Wed, 8 Mar 2017 14:46:22 +0000
(14:46 +0000)
committer
Chris Wilson
<chris@chris-wilson.co.uk>
Fri, 10 Mar 2017 13:02:34 +0000
(13:02 +0000)
Sometimes we want to explicitly page out all available objects from igt,
i.e. call i915_gem_shrink_all() and check that subsequent operations
succeed. This adds DROP_SHRINK_ALL [0x8] to the set of flags for
debugfs/i915_drop_caches for that purpose.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link:
http://patchwork.freedesktop.org/patch/msgid/20170308144622.23194-1-chris@chris-wilson.co.uk
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
drivers/gpu/drm/i915/i915_debugfs.c
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diff --git
a/drivers/gpu/drm/i915/i915_debugfs.c
b/drivers/gpu/drm/i915/i915_debugfs.c
index
115433d
..
56674df
100644
(file)
--- a/
drivers/gpu/drm/i915/i915_debugfs.c
+++ b/
drivers/gpu/drm/i915/i915_debugfs.c
@@
-4231,11
+4231,13
@@
DEFINE_SIMPLE_ATTRIBUTE(i915_ring_test_irq_fops,
#define DROP_RETIRE 0x4
#define DROP_ACTIVE 0x8
#define DROP_FREED 0x10
+#define DROP_SHRINK_ALL 0x20
#define DROP_ALL (DROP_UNBOUND | \
DROP_BOUND | \
DROP_RETIRE | \
DROP_ACTIVE | \
- DROP_FREED)
+ DROP_FREED | \
+ DROP_SHRINK_ALL)
static int
i915_drop_caches_get(void *data, u64 *val)
{
@@
-4276,6
+4278,9
@@
i915_drop_caches_set(void *data, u64 val)
if (val & DROP_UNBOUND)
i915_gem_shrink(dev_priv, LONG_MAX, I915_SHRINK_UNBOUND);
+ if (val & DROP_SHRINK_ALL)
+ i915_gem_shrink_all(dev_priv);
+
unlock:
mutex_unlock(&dev->struct_mutex);