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drm/i915: Move semaphore object creation into intel_ring_init_semaphores

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The object needs to be created before semaphores can be initialized
on any ring and it makes sense to pull it out to this semaphore
dedicated helper.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Tvrtko Ursulin 2016-06-29 16:09:28 +01:00
parent d9a64610b2
commit db3d4019ab
1 changed files with 25 additions and 20 deletions
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45
drivers/gpu/drm/i915/intel_ringbuffer.c
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@ -2887,6 +2887,30 @@ static int gen6_ring_flush(struct drm_i915_gem_request *req,
static void intel_ring_init_semaphores(struct drm_i915_private *dev_priv,
struct intel_engine_cs *engine)
{
struct drm_i915_gem_object *obj;
int ret;
if (!i915_semaphore_is_enabled(dev_priv))
return;
if (INTEL_GEN(dev_priv) >= 8 && !dev_priv->semaphore_obj) {
obj = i915_gem_object_create(dev_priv->dev, 4096);
if (IS_ERR(obj)) {
DRM_ERROR("Failed to allocate semaphore bo. Disabling semaphores\n");
i915.semaphores = 0;
} else {
i915_gem_object_set_cache_level(obj, I915_CACHE_LLC);
ret = i915_gem_obj_ggtt_pin(obj, 0, PIN_NONBLOCK);
if (ret != 0) {
drm_gem_object_unreference(&obj->base);
DRM_ERROR("Failed to pin semaphore bo. Disabling semaphores\n");
i915.semaphores = 0;
} else {
dev_priv->semaphore_obj = obj;
}
}
}
if (!i915_semaphore_is_enabled(dev_priv))
return;
@ -2957,31 +2981,12 @@ int intel_init_render_ring_buffer(struct drm_device *dev)
intel_ring_default_vfuncs(dev_priv, engine);
if (INTEL_GEN(dev_priv) >= 8) {
if (i915_semaphore_is_enabled(dev_priv)) {
obj = i915_gem_object_create(dev, 4096);
if (IS_ERR(obj)) {
DRM_ERROR("Failed to allocate semaphore bo. Disabling semaphores\n");
i915.semaphores = 0;
} else {
i915_gem_object_set_cache_level(obj, I915_CACHE_LLC);
ret = i915_gem_obj_ggtt_pin(obj, 0, PIN_NONBLOCK);
if (ret != 0) {
drm_gem_object_unreference(&obj->base);
DRM_ERROR("Failed to pin semaphore bo. Disabling semaphores\n");
i915.semaphores = 0;
} else
dev_priv->semaphore_obj = obj;
}
}
engine->init_context = intel_rcs_ctx_init;
engine->add_request = gen8_render_add_request;
engine->flush = gen8_render_ring_flush;
engine->irq_enable_mask = GT_RENDER_USER_INTERRUPT;
if (i915_semaphore_is_enabled(dev_priv)) {
WARN_ON(!dev_priv->semaphore_obj);
if (i915_semaphore_is_enabled(dev_priv))
engine->semaphore.signal = gen8_rcs_signal;
}
} else if (INTEL_GEN(dev_priv) >= 6) {
engine->init_context = intel_rcs_ctx_init;
engine->flush = gen7_render_ring_flush;