drm/i915: Use a common seqno for all rings.
This will be used by the eviction logic to maintain fairness between the
rings.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Eric Anholt <eric@anholt.net>
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c
index a5d664e..3a02425 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 @@
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 @@
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,
@@ -479,7 +499,7 @@
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);
count = nbox ? nbox : 1;
@@ -757,18 +777,6 @@
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 = {
@@ -786,7 +794,6 @@
.head = 0,
.tail = 0,
.space = 0,
- .next_seqno = 1,
.user_irq_refcount = 0,
.irq_gem_seqno = 0,
.waiting_gem_seqno = 0,
@@ -825,7 +832,6 @@
.head = 0,
.tail = 0,
.space = 0,
- .next_seqno = 1,
.user_irq_refcount = 0,
.irq_gem_seqno = 0,
.waiting_gem_seqno = 0,