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| author |   Chris Wilson <chris@chris-wilson.co.uk> | 2018-05-21 09:21:31 +0100 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2018-05-24 15:04:36 +0100 |
| commit | 2edd4e698dc8a0c497a502c75561c87be0e8a9a6 (patch) | |
| tree | 29e1eedb1d2b6e99b30806a6fcab3432dffe7354 /drivers/gpu/drm/i915/intel_ringbuffer.c | |
| parent | drm/i915: Limit searching for PIN_HIGH (diff) | |
| download | linux-dev-2edd4e698dc8a0c497a502c75561c87be0e8a9a6.tar.xz linux-dev-2edd4e698dc8a0c497a502c75561c87be0e8a9a6.zip | |
drm/i915: Pin the ring high
If we can use an unmappable ring, try to pin it out of the mappable
aperture. This simple layout preference is to try and keep the mappable
aperture reserved and available to handle GGTT mmapping requests from
userspace without causing evictions and GPU stalls.
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/20180521082131.13744-4-chris@chris-wilson.co.uk
Diffstat (limited to 'drivers/gpu/drm/i915/intel_ringbuffer.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_ringbuffer.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c index 757bb0990c07..8948b30ea5d6 100644 --- a/drivers/gpu/drm/i915/intel_ringbuffer.c +++ b/drivers/gpu/drm/i915/intel_ringbuffer.c @@ -1034,6 +1034,8 @@ int intel_ring_pin(struct intel_ring *ring, flags |= PIN_OFFSET_BIAS | offset_bias; if (vma->obj->stolen) flags |= PIN_MAPPABLE; + else + flags |= PIN_HIGH; if (!(vma->flags & I915_VMA_GLOBAL_BIND)) { if (flags & PIN_MAPPABLE || map == I915_MAP_WC) |