After Daniel split out this code, I think this makes more sense, and
looks nicer. Also added some comments to help the situation.
Signed-off-by: Ben Widawsky <b...@bwidawsk.net>
---
drivers/gpu/drm/i915/i915_reg.h | 12 ++++++------
drivers/gpu/drm/i915/intel_ringbuffer.c | 18 +++++++++---------
drivers/gpu/drm/i915/intel_ringbuffer.h | 4 ++--
3 files changed, 17 insertions(+), 17 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index fb76b19..645d012 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -241,12 +241,12 @@
#define MI_SEMAPHORE_UPDATE (1<<21)
#define MI_SEMAPHORE_COMPARE (1<<20)
#define MI_SEMAPHORE_REGISTER (1<<18)
-#define MI_SEMAPHORE_SYNC_RV (2<<16)
-#define MI_SEMAPHORE_SYNC_RB (0<<16)
-#define MI_SEMAPHORE_SYNC_VR (0<<16)
-#define MI_SEMAPHORE_SYNC_VB (2<<16)
-#define MI_SEMAPHORE_SYNC_BR (2<<16)
-#define MI_SEMAPHORE_SYNC_BV (0<<16)
+#define MI_SEMAPHORE_SYNC_RB (0<<16) /* RCS wait for BCS (BRSYNC) */
+#define MI_SEMAPHORE_SYNC_RV (2<<16) /* RCS wait for VCS (VRSYNC) */
+#define MI_SEMAPHORE_SYNC_VR (0<<16) /* VCS wait for RCS (RVSYNC) */
+#define MI_SEMAPHORE_SYNC_VB (2<<16) /* VCS wait for BCS (BVSYNC) */
+#define MI_SEMAPHORE_SYNC_BV (0<<16) /* BCS wait for VCS (VBSYNC) */
+#define MI_SEMAPHORE_SYNC_BR (2<<16) /* BCS wait for RCS (RBSYNC) */
#define MI_SEMAPHORE_SYNC_INVALID (1<<0)
/*
* 3D instructions used by the kernel
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c
b/drivers/gpu/drm/i915/intel_ringbuffer.c
index 4161a2d..5b30815 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
@@ -1330,9 +1330,9 @@ int intel_init_render_ring_buffer(struct drm_device *dev)
ring->irq_enable_mask = GT_USER_INTERRUPT;
ring->get_seqno = gen6_ring_get_seqno;
ring->sync_to = gen6_ring_sync;
- ring->semaphore_register[0] = MI_SEMAPHORE_SYNC_INVALID;
- ring->semaphore_register[1] = MI_SEMAPHORE_SYNC_RV;
- ring->semaphore_register[2] = MI_SEMAPHORE_SYNC_RB;
+ ring->semaphore_register[RCS] = MI_SEMAPHORE_SYNC_INVALID;
+ ring->semaphore_register[VCS] = MI_SEMAPHORE_SYNC_RV;
+ ring->semaphore_register[BCS] = MI_SEMAPHORE_SYNC_RB;
ring->signal_mbox[0] = GEN6_VRSYNC;
ring->signal_mbox[1] = GEN6_BRSYNC;
} else if (IS_GEN5(dev)) {
@@ -1465,9 +1465,9 @@ int intel_init_bsd_ring_buffer(struct drm_device *dev)
ring->irq_put = gen6_ring_put_irq;
ring->dispatch_execbuffer = gen6_ring_dispatch_execbuffer;
ring->sync_to = gen6_ring_sync;
- ring->semaphore_register[0] = MI_SEMAPHORE_SYNC_VR;
- ring->semaphore_register[1] = MI_SEMAPHORE_SYNC_INVALID;
- ring->semaphore_register[2] = MI_SEMAPHORE_SYNC_VB;
+ ring->semaphore_register[RCS] = MI_SEMAPHORE_SYNC_VR;
+ ring->semaphore_register[VCS] = MI_SEMAPHORE_SYNC_INVALID;
+ ring->semaphore_register[BCS] = MI_SEMAPHORE_SYNC_VB;
ring->signal_mbox[0] = GEN6_RVSYNC;
ring->signal_mbox[1] = GEN6_BVSYNC;
} else {
@@ -1510,9 +1510,9 @@ int intel_init_blt_ring_buffer(struct drm_device *dev)
ring->irq_put = gen6_ring_put_irq;
ring->dispatch_execbuffer = gen6_ring_dispatch_execbuffer;
ring->sync_to = gen6_ring_sync;
- ring->semaphore_register[0] = MI_SEMAPHORE_SYNC_BR;
- ring->semaphore_register[1] = MI_SEMAPHORE_SYNC_BV;
- ring->semaphore_register[2] = MI_SEMAPHORE_SYNC_INVALID;
+ ring->semaphore_register[RCS] = MI_SEMAPHORE_SYNC_BR;
+ ring->semaphore_register[VCS] = MI_SEMAPHORE_SYNC_BV;
+ ring->semaphore_register[BCS] = MI_SEMAPHORE_SYNC_INVALID;
ring->signal_mbox[0] = GEN6_RBSYNC;
ring->signal_mbox[1] = GEN6_VBSYNC;
ring->init = init_ring_common;
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.h
b/drivers/gpu/drm/i915/intel_ringbuffer.h
index 55d3da2..0bf7160 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.h
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.h
@@ -80,8 +80,8 @@ struct intel_ring_buffer {
struct intel_ring_buffer *to,
u32 seqno);
- u32 semaphore_register[3]; /*our mbox written by others */
- u32 signal_mbox[2]; /* mboxes this ring signals to */
+ u32 semaphore_register[I915_NUM_RINGS]; /*our mbox written
by others */
+ u32 signal_mbox[I915_NUM_RINGS - 1]; /* mboxes this ring
signals to */
/**
* List of objects currently involved in rendering from the
* ringbuffer.
--
1.7.10.2
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