[PATCH 07/18] drm/i915: Vebox ringbuffer init

Ben Widawsky
2012-11-06T16:26:14Z

drivers/gpu/drm/i915/i915_gem.c | 8 ++++++++
drivers/gpu/drm/i915/i915_reg.h | 1 +
drivers/gpu/drm/i915/intel_ringbuffer.c | 34 ++++++++++++++++++++++++++++++++-
drivers/gpu/drm/i915/intel_ringbuffer.h | 1 +
4 files changed, 43 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index cdcf19d..2ebaa6f 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -3923,6 +3923,12 @@ i915_gem_init_hw(struct drm_device *dev)
goto cleanup_bsd_ring;
}

+ if (HAS_VEBOX(dev)) {
+ ret = intel_init_vebox_ring_buffer(dev);
+ if (ret)
+ goto cleanup_vebox_ring;
+ }
+
dev_priv->next_seqno = 1;

/*
@@ -3934,6 +3940,8 @@ i915_gem_init_hw(struct drm_device *dev)

return 0;

+cleanup_vebox_ring:
+ intel_cleanup_ring_buffer(&dev_priv->ring[VECS]);
cleanup_bsd_ring:
intel_cleanup_ring_buffer(&dev_priv->ring[VCS]);
cleanup_render_ring:
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 62bad81..21f5d61 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -465,6 +465,7 @@
#define DONE_REG 0x40b0
#define BSD_HWS_PGA_GEN7 (0x04180)
#define BLT_HWS_PGA_GEN7 (0x04280)
+#define VEBOX_HWS_PGA_GEN7 (0x04380)
#define RING_ACTHD(base) ((base)+0x74)
#define RING_NOPID(base) ((base)+0x94)
#define RING_IMR(base) ((base)+0xa8)
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c
index 11f3698..af90257 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
@@ -864,7 +864,8 @@ void intel_ring_setup_status_page(struct intel_ring_buffer *ring)
mmio = BSD_HWS_PGA_GEN7;
break;
case VECS:
- BUG();
+ mmio = VEBOX_HWS_PGA_GEN7;
+ break;
}
} else if (IS_GEN6(ring->dev)) {
mmio = RING_HWS_PGA_GEN6(ring->mmio_base);
@@ -1709,6 +1710,37 @@ int intel_init_blt_ring_buffer(struct drm_device *dev)
return intel_init_ring_buffer(dev, ring);
}

+int intel_init_vebox_ring_buffer(struct drm_device *dev)
+{
+ drm_i915_private_t *dev_priv = dev->dev_private;
+ struct intel_ring_buffer *ring = &dev_priv->ring[VECS];
+
+ ring->name = "video enhancement ring";
+ ring->id = VECS;
+
+ ring->mmio_base = VEBOX_RING_BASE;
+ ring->write_tail = ring_write_tail;
+ ring->flush = gen6_ring_flush;
+ ring->add_request = gen6_add_request;
+ ring->get_seqno = gen6_ring_get_seqno;
+ ring->irq_enable_mask = 0;
+ ring->irq_get = NULL;
+ ring->irq_put = NULL;
+ ring->dispatch_execbuffer = gen6_ring_dispatch_execbuffer;
+ ring->sync_to = gen6_ring_sync;
+ ring->semaphore_register[RCS] = MI_SEMAPHORE_SYNC_VER;
+ ring->semaphore_register[VCS] = MI_SEMAPHORE_SYNC_VEV;
+ ring->semaphore_register[BCS] = MI_SEMAPHORE_SYNC_VEB;
+ ring->semaphore_register[VECS] = MI_SEMAPHORE_SYNC_INVALID;
+ ring->signal_mbox[RCS] = GEN6_RVESYNC;
+ ring->signal_mbox[VCS] = GEN6_VVESYNC;
+ ring->signal_mbox[BCS] = GEN6_BVESYNC;
+ ring->signal_mbox[VECS] = GEN6_NOSYNC;
+ ring->init = init_ring_common;
+
+ return intel_init_ring_buffer(dev, ring);
+}
+
int
intel_ring_flush_all_caches(struct intel_ring_buffer *ring)
{
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.h b/drivers/gpu/drm/i915/intel_ringbuffer.h
index 3f7530e..eb2dbd6 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.h
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.h
@@ -213,6 +213,7 @@ int intel_ring_invalidate_all_caches(struct intel_ring_buffer *ring);
int intel_init_render_ring_buffer(struct drm_device *dev);
int intel_init_bsd_ring_buffer(struct drm_device *dev);
int intel_init_blt_ring_buffer(struct drm_device *dev);
+int intel_init_vebox_ring_buffer(struct drm_device *dev);

u32 intel_ring_get_active_head(struct intel_ring_buffer *ring);
void intel_ring_setup_status_page(struct intel_ring_buffer *ring);
--
1.8.0