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author | Chris Wilson <chris@chris-wilson.co.uk> | 2017-05-03 10:39:21 +0100 |
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committer | Chris Wilson <chris@chris-wilson.co.uk> | 2017-05-03 11:08:48 +0100 |
commit | 4797948071f607c5b43753cb8f1b7ddcf22e146d (patch) | |
tree | 65ee87bef56977d4f056947aaa664fe7b47c11bd /drivers/gpu/drm/i915/Makefile | |
parent | ceae14bd4cc4333b9a3b0b6b9457bb16e7ca410a (diff) | |
download | linux-4797948071f607c5b43753cb8f1b7ddcf22e146d.tar.bz2 |
drm/i915: Squash repeated awaits on the same fence
Track the latest fence waited upon on each context, and only add a new
asynchronous wait if the new fence is more recent than the recorded
fence for that context. This requires us to filter out unordered
timelines, which are noted by DMA_FENCE_NO_CONTEXT. However, in the
absence of a universal identifier, we have to use our own
i915->mm.unordered_timeline token.
v2: Throw around the debug crutches
v3: Inline the likely case of the pre-allocation cache being full.
v4: Drop the pre-allocation support, we can lose the most recent fence
in case of allocation failure -- it just means we may emit more awaits
than strictly necessary but will not break.
v5: Trim allocation size for leaf nodes, they only need an array of u32
not pointers.
v6: Create mock_timeline to tidy selftest writing
v7: s/intel_timeline_sync_get/intel_timeline_sync_is_later/ (Tvrtko)
v8: Prune the stale sync points when we idle.
v9: Include a small benchmark in the kselftests
v10: Separate the idr implementation into its own compartment. (Tvrkto)
v11: Refactor igt_sync kselftests to avoid deep nesting (Tvrkto)
v12: __sync_leaf_idx() to assert that p->height is 0 when checking leaves
v13: kselftests to investigate struct i915_syncmap itself (Tvrtko)
v14: Foray into ascii art graphs
v15: Take into account that the random lookup/insert does 2 prng calls,
not 1, when benchmarking, and use for_each_set_bit() (Tvrtko)
v16: Improved ascii art
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170503093924.5320-4-chris@chris-wilson.co.uk
Diffstat (limited to 'drivers/gpu/drm/i915/Makefile')
-rw-r--r-- | drivers/gpu/drm/i915/Makefile | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/Makefile b/drivers/gpu/drm/i915/Makefile index 2cf04504e494..7b05fb802f4c 100644 --- a/drivers/gpu/drm/i915/Makefile +++ b/drivers/gpu/drm/i915/Makefile @@ -16,6 +16,7 @@ i915-y := i915_drv.o \ i915_params.o \ i915_pci.o \ i915_suspend.o \ + i915_syncmap.o \ i915_sw_fence.o \ i915_sysfs.o \ intel_csr.o \ |