diff options
Diffstat (limited to 'drivers/gpu/drm/i915/intel_ringbuffer.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_ringbuffer.c | 32 |
1 files changed, 30 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c index c7637ceec1f4..c1472d62b663 100644 --- a/drivers/gpu/drm/i915/intel_ringbuffer.c +++ b/drivers/gpu/drm/i915/intel_ringbuffer.c @@ -1430,6 +1430,35 @@ gen6_add_request(struct drm_i915_gem_request *req) return 0; } +static int +gen8_render_add_request(struct drm_i915_gem_request *req) +{ + struct intel_engine_cs *engine = req->engine; + int ret; + + if (engine->semaphore.signal) + ret = engine->semaphore.signal(req, 8); + else + ret = intel_ring_begin(req, 8); + if (ret) + return ret; + + intel_ring_emit(engine, GFX_OP_PIPE_CONTROL(6)); + intel_ring_emit(engine, (PIPE_CONTROL_GLOBAL_GTT_IVB | + PIPE_CONTROL_CS_STALL | + PIPE_CONTROL_QW_WRITE)); + intel_ring_emit(engine, intel_hws_seqno_address(req->engine)); + intel_ring_emit(engine, 0); + intel_ring_emit(engine, i915_gem_request_get_seqno(req)); + /* We're thrashing one dword of HWS. */ + intel_ring_emit(engine, 0); + intel_ring_emit(engine, MI_USER_INTERRUPT); + intel_ring_emit(engine, MI_NOOP); + __intel_ring_advance(engine); + + return 0; +} + static inline bool i915_gem_has_seqno_wrapped(struct drm_device *dev, u32 seqno) { @@ -2751,12 +2780,11 @@ int intel_init_render_ring_buffer(struct drm_device *dev) } engine->init_context = intel_rcs_ctx_init; - engine->add_request = gen6_add_request; + engine->add_request = gen8_render_add_request; engine->flush = gen8_render_ring_flush; engine->irq_get = gen8_ring_get_irq; engine->irq_put = gen8_ring_put_irq; engine->irq_enable_mask = GT_RENDER_USER_INTERRUPT; - engine->irq_seqno_barrier = gen6_seqno_barrier; engine->get_seqno = ring_get_seqno; engine->set_seqno = ring_set_seqno; if (i915_semaphore_is_enabled(dev)) { |