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Diffstat (limited to 'drivers/gpu/drm/i915/intel_ringbuffer.c')
-rw-r--r--drivers/gpu/drm/i915/intel_ringbuffer.c42
1 files changed, 0 insertions, 42 deletions
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c
index c89aea5..6008d54 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
@@ -2314,48 +2314,6 @@ int intel_ring_cacheline_align(struct drm_i915_gem_request *req)
return 0;
}
-void intel_engine_init_seqno(struct intel_engine_cs *engine, u32 seqno)
-{
- struct drm_i915_private *dev_priv = engine->i915;
-
- /* Our semaphore implementation is strictly monotonic (i.e. we proceed
- * so long as the semaphore value in the register/page is greater
- * than the sync value), so whenever we reset the seqno,
- * so long as we reset the tracking semaphore value to 0, it will
- * always be before the next request's seqno. If we don't reset
- * the semaphore value, then when the seqno moves backwards all
- * future waits will complete instantly (causing rendering corruption).
- */
- if (IS_GEN6(dev_priv) || IS_GEN7(dev_priv)) {
- I915_WRITE(RING_SYNC_0(engine->mmio_base), 0);
- I915_WRITE(RING_SYNC_1(engine->mmio_base), 0);
- if (HAS_VEBOX(dev_priv))
- I915_WRITE(RING_SYNC_2(engine->mmio_base), 0);
- }
- if (dev_priv->semaphore_obj) {
- struct drm_i915_gem_object *obj = dev_priv->semaphore_obj;
- struct page *page = i915_gem_object_get_dirty_page(obj, 0);
- void *semaphores = kmap(page);
- memset(semaphores + GEN8_SEMAPHORE_OFFSET(engine->id, 0),
- 0, I915_NUM_ENGINES * gen8_semaphore_seqno_size);
- kunmap(page);
- }
- memset(engine->semaphore.sync_seqno, 0,
- sizeof(engine->semaphore.sync_seqno));
-
- intel_write_status_page(engine, I915_GEM_HWS_INDEX, seqno);
- if (engine->irq_seqno_barrier)
- engine->irq_seqno_barrier(engine);
- engine->last_submitted_seqno = seqno;
-
- engine->hangcheck.seqno = seqno;
-
- /* After manually advancing the seqno, fake the interrupt in case
- * there are any waiters for that seqno.
- */
- intel_engine_wakeup(engine);
-}
-
static void gen6_bsd_submit_request(struct drm_i915_gem_request *request)
{
struct drm_i915_private *dev_priv = request->i915;
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