* TLB invalidate requires a post-sync write.
*/
flags |= PIPE_CONTROL_QW_WRITE;
+ flags |= PIPE_CONTROL_GLOBAL_GTT_IVB;
/* Workaround: we must issue a pipe_control with CS-stall bit
* set before a pipe_control command that has the state cache
intel_ring_emit(ring, GFX_OP_PIPE_CONTROL(4));
intel_ring_emit(ring, flags);
- intel_ring_emit(ring, scratch_addr | PIPE_CONTROL_GLOBAL_GTT);
+ intel_ring_emit(ring, scratch_addr);
intel_ring_emit(ring, 0);
intel_ring_advance(ring);
}
}
+ /* Enforce ordering by reading HEAD register back */
+ I915_READ_HEAD(ring);
+
/* Initialize the ring. This must happen _after_ we've cleared the ring
* registers with the above sequence (the readback of the HEAD registers
* also enforces ordering), otherwise the hw might lose the new ring
if (pc->cpu_page == NULL)
goto err_unpin;
+ DRM_DEBUG_DRIVER("%s pipe control offset: 0x%08x\n",
+ ring->name, pc->gtt_offset);
+
pc->obj = obj;
ring->private = pc;
return 0;
struct pipe_control *pc = ring->private;
struct drm_i915_gem_object *obj;
- if (!ring->private)
- return;
-
obj = pc->obj;
kunmap(sg_page(obj->pages->sgl));
drm_gem_object_unreference(&obj->base);
kfree(pc);
- ring->private = NULL;
}
static int init_render_ring(struct intel_ring_buffer *ring)
if (HAS_BROKEN_CS_TLB(dev))
drm_gem_object_unreference(to_gem_object(ring->private));
- cleanup_pipe_control(ring);
+ if (INTEL_INFO(dev)->gen >= 5)
+ cleanup_pipe_control(ring);
+
+ ring->private = NULL;
}
static void
return 0;
}
+static inline bool i915_gem_has_seqno_wrapped(struct drm_device *dev,
+ u32 seqno)
+{
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ return dev_priv->last_seqno < seqno;
+}
+
/**
* intel_ring_sync - sync the waiter to the signaller on seqno
*
if (ret)
return ret;
- intel_ring_emit(waiter,
- dw1 | signaller->semaphore_register[waiter->id]);
- intel_ring_emit(waiter, seqno);
- intel_ring_emit(waiter, 0);
- intel_ring_emit(waiter, MI_NOOP);
+ /* If seqno wrap happened, omit the wait with no-ops */
+ if (likely(!i915_gem_has_seqno_wrapped(waiter->dev, seqno))) {
+ intel_ring_emit(waiter,
+ dw1 |
+ signaller->semaphore_register[waiter->id]);
+ intel_ring_emit(waiter, seqno);
+ intel_ring_emit(waiter, 0);
+ intel_ring_emit(waiter, MI_NOOP);
+ } else {
+ intel_ring_emit(waiter, MI_NOOP);
+ intel_ring_emit(waiter, MI_NOOP);
+ intel_ring_emit(waiter, MI_NOOP);
+ intel_ring_emit(waiter, MI_NOOP);
+ }
intel_ring_advance(waiter);
return 0;
return intel_read_status_page(ring, I915_GEM_HWS_INDEX);
}
+static void
+ring_set_seqno(struct intel_ring_buffer *ring, u32 seqno)
+{
+ intel_write_status_page(ring, I915_GEM_HWS_INDEX, seqno);
+}
+
static u32
pc_render_get_seqno(struct intel_ring_buffer *ring, bool lazy_coherency)
{
return pc->cpu_page[0];
}
+static void
+pc_render_set_seqno(struct intel_ring_buffer *ring, u32 seqno)
+{
+ struct pipe_control *pc = ring->private;
+ pc->cpu_page[0] = seqno;
+}
+
static bool
gen5_ring_get_irq(struct intel_ring_buffer *ring)
{
I915_WRITE(mmio, (u32)ring->status_page.gfx_addr);
POSTING_READ(mmio);
+
+ /* Flush the TLB for this page */
+ if (INTEL_INFO(dev)->gen >= 6) {
+ u32 reg = RING_INSTPM(ring->mmio_base);
+ I915_WRITE(reg,
+ _MASKED_BIT_ENABLE(INSTPM_TLB_INVALIDATE |
+ INSTPM_SYNC_FLUSH));
+ if (wait_for((I915_READ(reg) & INSTPM_SYNC_FLUSH) == 0,
+ 1000))
+ DRM_ERROR("%s: wait for SyncFlush to complete for TLB invalidation timed out\n",
+ ring->name);
+ }
}
static int
return ret;
}
- obj = i915_gem_alloc_object(dev, ring->size);
+ obj = NULL;
+ if (!HAS_LLC(dev))
+ obj = i915_gem_object_create_stolen(dev, ring->size);
+ if (obj == NULL)
+ obj = i915_gem_alloc_object(dev, ring->size);
if (obj == NULL) {
DRM_ERROR("Failed to allocate ringbuffer\n");
ret = -ENOMEM;
goto err_unpin;
ring->virtual_start =
- ioremap_wc(dev_priv->mm.gtt->gma_bus_addr + obj->gtt_offset,
+ ioremap_wc(dev_priv->gtt.mappable_base + obj->gtt_offset,
ring->size);
if (ring->virtual_start == NULL) {
DRM_ERROR("Failed to map ringbuffer.\n");
msleep(1);
- ret = i915_gem_check_wedge(dev_priv, dev_priv->mm.interruptible);
+ ret = i915_gem_check_wedge(&dev_priv->gpu_error,
+ dev_priv->mm.interruptible);
if (ret)
return ret;
} while (!time_after(jiffies, end));
return i915_gem_get_seqno(ring->dev, &ring->outstanding_lazy_request);
}
+static int __intel_ring_prepare(struct intel_ring_buffer *ring,
+ int bytes)
+{
+ int ret;
+
+ if (unlikely(ring->tail + bytes > ring->effective_size)) {
+ ret = intel_wrap_ring_buffer(ring);
+ if (unlikely(ret))
+ return ret;
+ }
+
+ if (unlikely(ring->space < bytes)) {
+ ret = ring_wait_for_space(ring, bytes);
+ if (unlikely(ret))
+ return ret;
+ }
+
+ return 0;
+}
+
int intel_ring_begin(struct intel_ring_buffer *ring,
int num_dwords)
{
drm_i915_private_t *dev_priv = ring->dev->dev_private;
- int n = 4*num_dwords;
int ret;
- ret = i915_gem_check_wedge(dev_priv, dev_priv->mm.interruptible);
+ ret = i915_gem_check_wedge(&dev_priv->gpu_error,
+ dev_priv->mm.interruptible);
+ if (ret)
+ return ret;
+
+ ret = __intel_ring_prepare(ring, num_dwords * sizeof(uint32_t));
if (ret)
return ret;
if (ret)
return ret;
- if (unlikely(ring->tail + n > ring->effective_size)) {
- ret = intel_wrap_ring_buffer(ring);
- if (unlikely(ret))
- return ret;
- }
+ ring->space -= num_dwords * sizeof(uint32_t);
+ return 0;
+}
- if (unlikely(ring->space < n)) {
- ret = ring_wait_for_space(ring, n);
- if (unlikely(ret))
- return ret;
+void intel_ring_init_seqno(struct intel_ring_buffer *ring, u32 seqno)
+{
+ struct drm_i915_private *dev_priv = ring->dev->dev_private;
+
+ BUG_ON(ring->outstanding_lazy_request);
+
+ if (INTEL_INFO(ring->dev)->gen >= 6) {
+ I915_WRITE(RING_SYNC_0(ring->mmio_base), 0);
+ I915_WRITE(RING_SYNC_1(ring->mmio_base), 0);
}
- ring->space -= n;
- return 0;
+ ring->set_seqno(ring, seqno);
}
void intel_ring_advance(struct intel_ring_buffer *ring)
struct drm_i915_private *dev_priv = ring->dev->dev_private;
ring->tail &= ring->size - 1;
- if (dev_priv->stop_rings & intel_ring_flag(ring))
+ if (dev_priv->gpu_error.stop_rings & intel_ring_flag(ring))
return;
ring->write_tail(ring, ring->tail);
}
ring->irq_put = gen6_ring_put_irq;
ring->irq_enable_mask = GT_USER_INTERRUPT;
ring->get_seqno = gen6_ring_get_seqno;
+ ring->set_seqno = ring_set_seqno;
ring->sync_to = gen6_ring_sync;
ring->semaphore_register[0] = MI_SEMAPHORE_SYNC_INVALID;
ring->semaphore_register[1] = MI_SEMAPHORE_SYNC_RV;
ring->add_request = pc_render_add_request;
ring->flush = gen4_render_ring_flush;
ring->get_seqno = pc_render_get_seqno;
+ ring->set_seqno = pc_render_set_seqno;
ring->irq_get = gen5_ring_get_irq;
ring->irq_put = gen5_ring_put_irq;
ring->irq_enable_mask = GT_USER_INTERRUPT | GT_PIPE_NOTIFY;
else
ring->flush = gen4_render_ring_flush;
ring->get_seqno = ring_get_seqno;
+ ring->set_seqno = ring_set_seqno;
if (IS_GEN2(dev)) {
ring->irq_get = i8xx_ring_get_irq;
ring->irq_put = i8xx_ring_put_irq;
else
ring->flush = gen4_render_ring_flush;
ring->get_seqno = ring_get_seqno;
+ ring->set_seqno = ring_set_seqno;
if (IS_GEN2(dev)) {
ring->irq_get = i8xx_ring_get_irq;
ring->irq_put = i8xx_ring_put_irq;
ring->flush = gen6_ring_flush;
ring->add_request = gen6_add_request;
ring->get_seqno = gen6_ring_get_seqno;
+ ring->set_seqno = ring_set_seqno;
ring->irq_enable_mask = GEN6_BSD_USER_INTERRUPT;
ring->irq_get = gen6_ring_get_irq;
ring->irq_put = gen6_ring_put_irq;
ring->flush = bsd_ring_flush;
ring->add_request = i9xx_add_request;
ring->get_seqno = ring_get_seqno;
+ ring->set_seqno = ring_set_seqno;
if (IS_GEN5(dev)) {
ring->irq_enable_mask = GT_BSD_USER_INTERRUPT;
ring->irq_get = gen5_ring_get_irq;
ring->flush = blt_ring_flush;
ring->add_request = gen6_add_request;
ring->get_seqno = gen6_ring_get_seqno;
+ ring->set_seqno = ring_set_seqno;
ring->irq_enable_mask = GEN6_BLITTER_USER_INTERRUPT;
ring->irq_get = gen6_ring_get_irq;
ring->irq_put = gen6_ring_put_irq;
projects / firefly-linux-kernel-4.4.55.git / blobdiff