This will be used by the eviction logic to maintain fairness between the rings.
Signed-off-by: Chris Wilson chris@chris-wilson.co.uk --- drivers/gpu/drm/i915/i915_drv.h | 3 +- drivers/gpu/drm/i915/i915_gem.c | 2 + drivers/gpu/drm/i915/intel_ringbuffer.c | 46 +++++++++++++++++------------- drivers/gpu/drm/i915/intel_ringbuffer.h | 1 - 4 files changed, 29 insertions(+), 23 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 98e6980..65cf336 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -236,6 +236,7 @@ typedef struct drm_i915_private { struct pci_dev *bridge_dev; struct intel_ring_buffer render_ring; struct intel_ring_buffer bsd_ring; + uint32_t next_seqno;
drm_dma_handle_t *status_page_dmah; void *seqno_page; @@ -553,8 +554,6 @@ typedef struct drm_i915_private { */ struct delayed_work retire_work;
- uint32_t next_gem_seqno; - /** * Waiting sequence number, if any */ diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index d4bcf71..1b867c4 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -4701,6 +4701,8 @@ i915_gem_init_ringbuffer(struct drm_device *dev) goto cleanup_render_ring; }
+ dev_priv->next_seqno = 1; + return 0;
cleanup_render_ring: diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c index 2a3d2fa..ec04238 100644 --- a/drivers/gpu/drm/i915/intel_ringbuffer.c +++ b/drivers/gpu/drm/i915/intel_ringbuffer.c @@ -33,18 +33,35 @@ #include "i915_drm.h" #include "i915_trace.h"
+static u32 i915_gem_get_seqno(struct drm_device *dev) +{ + drm_i915_private_t *dev_priv = dev->dev_private; + u32 seqno; + + seqno = dev_priv->next_seqno; + + /* reserve 0 for non-seqno */ + if (++dev_priv->next_seqno == 0) + dev_priv->next_seqno = 1; + + return seqno; +} + static void render_ring_flush(struct drm_device *dev, struct intel_ring_buffer *ring, u32 invalidate_domains, u32 flush_domains) { + drm_i915_private_t *dev_priv = dev->dev_private; + u32 cmd; + #if WATCH_EXEC DRM_INFO("%s: invalidate %08x flush %08x\n", __func__, invalidate_domains, flush_domains); #endif - u32 cmd; - trace_i915_gem_request_flush(dev, ring->next_seqno, + + trace_i915_gem_request_flush(dev, dev_priv->next_seqno, invalidate_domains, flush_domains);
if ((invalidate_domains | flush_domains) & I915_GEM_GPU_DOMAINS) { @@ -233,9 +250,10 @@ render_ring_add_request(struct drm_device *dev, struct drm_file *file_priv, u32 flush_domains) { - u32 seqno; drm_i915_private_t *dev_priv = dev->dev_private; - seqno = intel_ring_get_seqno(dev, ring); + u32 seqno; + + seqno = i915_gem_get_seqno(dev);
if (IS_GEN6(dev)) { BEGIN_LP_RING(6); @@ -405,7 +423,9 @@ bsd_ring_add_request(struct drm_device *dev, u32 flush_domains) { u32 seqno; - seqno = intel_ring_get_seqno(dev, ring); + + seqno = i915_gem_get_seqno(dev); + intel_ring_begin(dev, ring, 4); intel_ring_emit(dev, ring, MI_STORE_DWORD_INDEX); intel_ring_emit(dev, ring, @@ -539,7 +559,7 @@ render_ring_dispatch_gem_execbuffer(struct drm_device *dev, exec_start = (uint32_t) exec_offset + exec->batch_start_offset; exec_len = (uint32_t) exec->batch_len;
- trace_i915_gem_request_submit(dev, dev_priv->mm.next_gem_seqno + 1); + trace_i915_gem_request_submit(dev, dev_priv->next_seqno + 1);
pipeline = exec->flags & I915_EXEC_PIPELINE_MASK; if (pipeline != ring->pipeline) { @@ -838,18 +858,6 @@ void intel_fill_struct(struct drm_device *dev, intel_ring_advance(dev, ring); }
-u32 intel_ring_get_seqno(struct drm_device *dev, - struct intel_ring_buffer *ring) -{ - u32 seqno; - seqno = ring->next_seqno; - - /* reserve 0 for non-seqno */ - if (++ring->next_seqno == 0) - ring->next_seqno = 1; - return seqno; -} - struct intel_ring_buffer render_ring = { .name = "render ring", .regs = { @@ -867,7 +875,6 @@ struct intel_ring_buffer render_ring = { .head = 0, .tail = 0, .space = 0, - .next_seqno = 1, .user_irq_refcount = 0, .irq_gem_seqno = 0, .waiting_gem_seqno = 0, @@ -906,7 +913,6 @@ struct intel_ring_buffer bsd_ring = { .head = 0, .tail = 0, .space = 0, - .next_seqno = 1, .user_irq_refcount = 0, .irq_gem_seqno = 0, .waiting_gem_seqno = 0, diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.h b/drivers/gpu/drm/i915/intel_ringbuffer.h index ff5db57..1c50ae1 100644 --- a/drivers/gpu/drm/i915/intel_ringbuffer.h +++ b/drivers/gpu/drm/i915/intel_ringbuffer.h @@ -26,7 +26,6 @@ struct intel_ring_buffer { unsigned int head; unsigned int tail; unsigned int space; - u32 next_seqno; struct intel_hw_status_page status_page;
u32 irq_gem_seqno; /* last seq seem at irq time */