xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

drm/i915: Pull the context->pin_count dec into the common intel_context_unpin

Browse Source 
As all backends implement the same pin_count mechanism and do a
dec-and-test as their first step, pull that into the common
intel_context_unpin(). This also pulls into the caller, eliminating the
indirect call in the usual steady state case. The intel_context_pin()
side is a little more complicated as it combines the lookup/alloc as
well as pinning the state, and so is left for a later date.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180517212633.24934-4-chris@chris-wilson.co.uk
This commit is contained in:
Chris Wilson
2018-05-17 22:26:33 +01:00
parent 1fc44d9b1a
commit 867985d4a4
4 changed files with 5 additions and 21 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/gpu/drm/i915/intel_ringbuffer.c
View File

@@ -1195,12 +1195,6 @@ static void intel_ring_context_destroy(struct intel_context *ce)
static void intel_ring_context_unpin(struct intel_context *ce)
{
lockdep_assert_held(&ce->gem_context->i915->drm.struct_mutex);
GEM_BUG_ON(ce->pin_count == 0);
if (--ce->pin_count)
return;
if (ce->state) {
ce->state->obj->pin_global--;
i915_vma_unpin(ce->state);