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| author | Chris Wilson <chris@chris-wilson.co.uk> | 2017-12-12 21:06:51 +0300 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2017-12-13 16:17:44 +0300 |
| commit | 2abe2f844645402e5d47012a04839d1c5cbffd0d (patch) | |
| tree | 5d36295e28ae863e1e6cd3a014cb953d971a3fb3 /drivers/gpu/drm/i915/i915_gem_clflush.c | |
| parent | e30a7581bfc2d5619fed03ec7321c9e4ffb7e36f (diff) | |
| download | linux-2abe2f844645402e5d47012a04839d1c5cbffd0d.tar.xz | |
drm/i915: Allow fence allocations to fail
If a fence allocation fails in a blocking context, we will sleep on the
fence as a last resort. We can therefore allow ourselves to fail and
sleep on the fence instead of triggering a system-wide oom. This allows
us to throttle malicious clients that are consuming lots of system
resources by capping the amount of memory used by fences.
Testcase: igt/gem_shrink/execbufX
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171212180652.22061-2-chris@chris-wilson.co.uk
Diffstat (limited to 'drivers/gpu/drm/i915/i915_gem_clflush.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_gem_clflush.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem_clflush.c b/drivers/gpu/drm/i915/i915_gem_clflush.c index f663cd919795..b9b53ac14176 100644 --- a/drivers/gpu/drm/i915/i915_gem_clflush.c +++ b/drivers/gpu/drm/i915/i915_gem_clflush.c @@ -167,7 +167,7 @@ bool i915_gem_clflush_object(struct drm_i915_gem_object *obj, i915_sw_fence_await_reservation(&clflush->wait, obj->resv, NULL, true, I915_FENCE_TIMEOUT, - GFP_KERNEL); + I915_FENCE_GFP); reservation_object_lock(obj->resv, NULL); reservation_object_add_excl_fence(obj->resv, &clflush->dma); |