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path: root/drivers/gpu/drm/i915/i915_gem_execbuffer.c
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Diffstat (limited to 'drivers/gpu/drm/i915/i915_gem_execbuffer.c')
-rw-r--r--drivers/gpu/drm/i915/i915_gem_execbuffer.c38
1 files changed, 24 insertions, 14 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
index 9337446f1068..054b2e54cdaf 100644
--- a/drivers/gpu/drm/i915/i915_gem_execbuffer.c
+++ b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
@@ -288,20 +288,26 @@ static int eb_create(struct i915_execbuffer *eb)
* direct lookup.
*/
do {
+ unsigned int flags;
+
+ /* While we can still reduce the allocation size, don't
+ * raise a warning and allow the allocation to fail.
+ * On the last pass though, we want to try as hard
+ * as possible to perform the allocation and warn
+ * if it fails.
+ */
+ flags = GFP_TEMPORARY;
+ if (size > 1)
+ flags |= __GFP_NORETRY | __GFP_NOWARN;
+
eb->buckets = kzalloc(sizeof(struct hlist_head) << size,
- GFP_TEMPORARY |
- __GFP_NORETRY |
- __GFP_NOWARN);
+ flags);
if (eb->buckets)
break;
} while (--size);
- if (unlikely(!eb->buckets)) {
- eb->buckets = kzalloc(sizeof(struct hlist_head),
- GFP_TEMPORARY);
- if (unlikely(!eb->buckets))
- return -ENOMEM;
- }
+ if (unlikely(!size))
+ return -ENOMEM;
eb->lut_size = size;
} else {
@@ -452,7 +458,7 @@ eb_add_vma(struct i915_execbuffer *eb,
return err;
}
- if (eb->lut_size >= 0) {
+ if (eb->lut_size > 0) {
vma->exec_handle = entry->handle;
hlist_add_head(&vma->exec_node,
&eb->buckets[hash_32(entry->handle,
@@ -894,7 +900,7 @@ static void eb_release_vmas(const struct i915_execbuffer *eb)
static void eb_reset_vmas(const struct i915_execbuffer *eb)
{
eb_release_vmas(eb);
- if (eb->lut_size >= 0)
+ if (eb->lut_size > 0)
memset(eb->buckets, 0,
sizeof(struct hlist_head) << eb->lut_size);
}
@@ -903,7 +909,7 @@ static void eb_destroy(const struct i915_execbuffer *eb)
{
GEM_BUG_ON(eb->reloc_cache.rq);
- if (eb->lut_size >= 0)
+ if (eb->lut_size > 0)
kfree(eb->buckets);
}
@@ -2180,8 +2186,11 @@ i915_gem_do_execbuffer(struct drm_device *dev,
}
}
- if (eb_create(&eb))
- return -ENOMEM;
+ err = eb_create(&eb);
+ if (err)
+ goto err_out_fence;
+
+ GEM_BUG_ON(!eb.lut_size);
/*
* Take a local wakeref for preparing to dispatch the execbuf as
@@ -2340,6 +2349,7 @@ err_unlock:
err_rpm:
intel_runtime_pm_put(eb.i915);
eb_destroy(&eb);
+err_out_fence:
if (out_fence_fd != -1)
put_unused_fd(out_fence_fd);
err_in_fence: