diff options
Diffstat (limited to 'drivers/gpu/drm/i915/intel_lrc.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_lrc.c | 49 |
1 files changed, 44 insertions, 5 deletions
diff --git a/drivers/gpu/drm/i915/intel_lrc.c b/drivers/gpu/drm/i915/intel_lrc.c index a33687d294b5..61549a623e2c 100644 --- a/drivers/gpu/drm/i915/intel_lrc.c +++ b/drivers/gpu/drm/i915/intel_lrc.c @@ -1222,11 +1222,16 @@ static void lrc_init_hws(struct intel_engine_cs *engine) static int gen8_init_common_ring(struct intel_engine_cs *engine) { struct drm_i915_private *dev_priv = engine->i915; + int ret; + + ret = intel_mocs_init_engine(engine); + if (ret) + return ret; lrc_init_hws(engine); - I915_WRITE_IMR(engine, - ~(engine->irq_enable_mask | engine->irq_keep_mask)); + intel_engine_reset_irq(engine); + I915_WRITE(RING_HWSTAM(engine->mmio_base), 0xffffffff); I915_WRITE(RING_MODE_GEN7(engine), @@ -1237,7 +1242,10 @@ static int gen8_init_common_ring(struct intel_engine_cs *engine) intel_engine_init_hangcheck(engine); - return intel_mocs_init_engine(engine); + if (!execlists_elsp_idle(engine)) + execlists_submit_ports(engine); + + return 0; } static int gen8_init_render_ring(struct intel_engine_cs *engine) @@ -1273,6 +1281,36 @@ static int gen9_init_render_ring(struct intel_engine_cs *engine) return init_workarounds_ring(engine); } +static void reset_common_ring(struct intel_engine_cs *engine, + struct drm_i915_gem_request *request) +{ + struct drm_i915_private *dev_priv = engine->i915; + struct execlist_port *port = engine->execlist_port; + struct intel_context *ce = &request->ctx->engine[engine->id]; + + /* Move the RING_HEAD onto the breadcrumb, past the hanging batch */ + ce->lrc_reg_state[CTX_RING_HEAD+1] = request->postfix; + request->ring->head = request->postfix; + request->ring->last_retired_head = -1; + intel_ring_update_space(request->ring); + + if (i915.enable_guc_submission) + return; + + /* Catch up with any missed context-switch interrupts */ + I915_WRITE(RING_CONTEXT_STATUS_PTR(engine), _MASKED_FIELD(0xffff, 0)); + if (request->ctx != port[0].request->ctx) { + i915_gem_request_put(port[0].request); + port[0] = port[1]; + memset(&port[1], 0, sizeof(port[1])); + } + + /* CS is stopped, and we will resubmit both ports on resume */ + GEM_BUG_ON(request->ctx != port[0].request->ctx); + port[0].count = 0; + port[1].count = 0; +} + static int intel_logical_ring_emit_pdps(struct drm_i915_gem_request *req) { struct i915_hw_ppgtt *ppgtt = req->ctx->ppgtt; @@ -1635,6 +1673,7 @@ logical_ring_default_vfuncs(struct intel_engine_cs *engine) { /* Default vfuncs which can be overriden by each engine. */ engine->init_hw = gen8_init_common_ring; + engine->reset_hw = reset_common_ring; engine->emit_flush = gen8_emit_flush; engine->emit_request = gen8_emit_request; engine->submit_request = execlists_submit_request; @@ -2087,9 +2126,9 @@ error_deref_obj: return ret; } -void intel_lr_context_reset(struct drm_i915_private *dev_priv, - struct i915_gem_context *ctx) +void intel_lr_context_resume(struct drm_i915_private *dev_priv) { + struct i915_gem_context *ctx = dev_priv->kernel_context; struct intel_engine_cs *engine; for_each_engine(engine, dev_priv) { |