From 7d5ea80720a8e53ff4ea309708cef2a7a0e163c7 Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Fri, 1 Jul 2016 17:23:20 +0100 Subject: drm/i915: Refactor scratch object allocation for gen2 w/a buffer The gen2 w/a buffer is stuffed into the same slot as the gen5+ scratch buffer. If we pass in the size we want to allocate for the scratch buffer, both callers can use the same routine. Signed-off-by: Chris Wilson Reviewed-by: Tvrtko Ursulin Link: http://patchwork.freedesktop.org/patch/msgid/1467390209-3576-11-git-send-email-chris@chris-wilson.co.uk --- drivers/gpu/drm/i915/intel_lrc.c | 2 +- drivers/gpu/drm/i915/intel_ringbuffer.c | 32 ++++++++------------------------ drivers/gpu/drm/i915/intel_ringbuffer.h | 2 +- 3 files changed, 10 insertions(+), 26 deletions(-) (limited to 'drivers/gpu') diff --git a/drivers/gpu/drm/i915/intel_lrc.c b/drivers/gpu/drm/i915/intel_lrc.c index c8411f8bb4ac..f1a01137334c 100644 --- a/drivers/gpu/drm/i915/intel_lrc.c +++ b/drivers/gpu/drm/i915/intel_lrc.c @@ -2056,7 +2056,7 @@ static int logical_render_ring_init(struct intel_engine_cs *engine) engine->emit_flush = gen8_emit_flush_render; engine->emit_request = gen8_emit_request_render; - ret = intel_init_pipe_control(engine); + ret = intel_init_pipe_control(engine, 4096); if (ret) return ret; diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c index 3bc968b7aedc..25d616d114e4 100644 --- a/drivers/gpu/drm/i915/intel_ringbuffer.c +++ b/drivers/gpu/drm/i915/intel_ringbuffer.c @@ -658,16 +658,16 @@ void intel_fini_pipe_control(struct intel_engine_cs *engine) engine->scratch.obj = NULL; } -int intel_init_pipe_control(struct intel_engine_cs *engine) +int intel_init_pipe_control(struct intel_engine_cs *engine, int size) { struct drm_i915_gem_object *obj; int ret; WARN_ON(engine->scratch.obj); - obj = i915_gem_object_create_stolen(engine->i915->dev, 4096); + obj = i915_gem_object_create_stolen(engine->i915->dev, size); if (!obj) - obj = i915_gem_object_create(engine->i915->dev, 4096); + obj = i915_gem_object_create(engine->i915->dev, size); if (IS_ERR(obj)) { DRM_ERROR("Failed to allocate scratch page\n"); ret = PTR_ERR(obj); @@ -3002,7 +3002,6 @@ int intel_init_render_ring_buffer(struct drm_device *dev) { struct drm_i915_private *dev_priv = dev->dev_private; struct intel_engine_cs *engine = &dev_priv->engine[RCS]; - struct drm_i915_gem_object *obj; int ret; engine->name = "render ring"; @@ -3045,31 +3044,16 @@ int intel_init_render_ring_buffer(struct drm_device *dev) engine->init_hw = init_render_ring; engine->cleanup = render_ring_cleanup; - /* Workaround batchbuffer to combat CS tlb bug. */ - if (HAS_BROKEN_CS_TLB(dev_priv)) { - obj = i915_gem_object_create(dev, I830_WA_SIZE); - if (IS_ERR(obj)) { - DRM_ERROR("Failed to allocate batch bo\n"); - return PTR_ERR(obj); - } - - ret = i915_gem_obj_ggtt_pin(obj, 0, 0); - if (ret != 0) { - drm_gem_object_unreference(&obj->base); - DRM_ERROR("Failed to ping batch bo\n"); - return ret; - } - - engine->scratch.obj = obj; - engine->scratch.gtt_offset = i915_gem_obj_ggtt_offset(obj); - } - ret = intel_init_ring_buffer(dev, engine); if (ret) return ret; if (INTEL_GEN(dev_priv) >= 5) { - ret = intel_init_pipe_control(engine); + ret = intel_init_pipe_control(engine, 4096); + if (ret) + return ret; + } else if (HAS_BROKEN_CS_TLB(dev_priv)) { + ret = intel_init_pipe_control(engine, I830_WA_SIZE); if (ret) return ret; } diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.h b/drivers/gpu/drm/i915/intel_ringbuffer.h index 2ae6e3c8eb0f..ad86686e57f0 100644 --- a/drivers/gpu/drm/i915/intel_ringbuffer.h +++ b/drivers/gpu/drm/i915/intel_ringbuffer.h @@ -471,8 +471,8 @@ void intel_ring_init_seqno(struct intel_engine_cs *engine, u32 seqno); int intel_ring_flush_all_caches(struct drm_i915_gem_request *req); int intel_ring_invalidate_all_caches(struct drm_i915_gem_request *req); +int intel_init_pipe_control(struct intel_engine_cs *engine, int size); void intel_fini_pipe_control(struct intel_engine_cs *engine); -int intel_init_pipe_control(struct intel_engine_cs *engine); int intel_init_render_ring_buffer(struct drm_device *dev); int intel_init_bsd_ring_buffer(struct drm_device *dev); -- cgit v1.2.3