diff options
| author | Chris Wilson <chris@chris-wilson.co.uk> | 2017-02-27 13:59:13 +0000 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2017-02-27 16:01:47 +0000 |
| commit | afeddf50811253ee512fb9192cfb443891929776 (patch) | |
| tree | 061553fe75b5af1f49213f915b22fc802b6d857c /drivers/gpu/drm/i915/i915_gem_context.c | |
| parent | 12946eceeb97a36a7087995646e077e9872ac99b (diff) | |
drm/i915: Reduce context alignment
No hardware was ever shipped that needed more than 4096 byte alignment
and future hardware will not use this legacy path. So reduce the
alignment to make it easier and quicker to launch workloads.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170227135913.8056-3-chris@chris-wilson.co.uk
Diffstat (limited to 'drivers/gpu/drm/i915/i915_gem_context.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_gem_context.c | 17 |
1 files changed, 0 insertions, 17 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem_context.c b/drivers/gpu/drm/i915/i915_gem_context.c index 521e6f4705b1..baceca14f5e0 100644 --- a/drivers/gpu/drm/i915/i915_gem_context.c +++ b/drivers/gpu/drm/i915/i915_gem_context.c @@ -92,21 +92,6 @@ #define ALL_L3_SLICES(dev) (1 << NUM_L3_SLICES(dev)) - 1 -/* This is a HW constraint. The value below is the largest known requirement - * I've seen in a spec to date, and that was a workaround for a non-shipping - * part. It should be safe to decrease this, but it's more future proof as is. - */ -#define GEN6_CONTEXT_ALIGN (64<<10) -#define GEN7_CONTEXT_ALIGN I915_GTT_MIN_ALIGNMENT - -static size_t get_context_alignment(struct drm_i915_private *dev_priv) -{ - if (IS_GEN6(dev_priv)) - return GEN6_CONTEXT_ALIGN; - - return GEN7_CONTEXT_ALIGN; -} - static int get_context_size(struct drm_i915_private *dev_priv) { int ret; @@ -281,8 +266,6 @@ __create_hw_context(struct drm_i915_private *dev_priv, list_add_tail(&ctx->link, &dev_priv->context_list); ctx->i915 = dev_priv; - ctx->ggtt_alignment = get_context_alignment(dev_priv); - if (dev_priv->hw_context_size) { struct drm_i915_gem_object *obj; struct i915_vma *vma; |