drm/i915: Vebox ringbuffer init

v2: Add set_seqno which didn't exist before rebase (Haihao)

Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Reviewed-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Xiang, Haihao <haihao.xiang@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 9496fb5..84d2aa2 100644 (file)
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -4013,12 +4013,21 @@ static int i915_gem_init_rings(struct drm_device *dev)
                        goto cleanup_bsd_ring;
        }
 
+       if (HAS_VEBOX(dev)) {
+               ret = intel_init_vebox_ring_buffer(dev);
+               if (ret)
+                       goto cleanup_blt_ring;
+       }
+
+
        ret = i915_gem_set_seqno(dev, ((u32)~0 - 0x1000));
        if (ret)
-               goto cleanup_blt_ring;
+               goto cleanup_vebox_ring;
 
        return 0;
 
+cleanup_vebox_ring:
+       intel_cleanup_ring_buffer(&dev_priv->ring[VECS]);
 cleanup_blt_ring:
        intel_cleanup_ring_buffer(&dev_priv->ring[BCS]);
 cleanup_bsd_ring:

diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 41c5d45..a5717f1 100644 (file)
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -620,6 +620,7 @@
 #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 3022e15..89dfc63 100644 (file)
--- a/drivers/gpu/drm/i915/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
@@ -916,7 +916,8 @@ 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);
@@ -1909,6 +1910,38 @@ 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->set_seqno = ring_set_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 73619cb..1c79520 100644 (file)
--- a/drivers/gpu/drm/i915/intel_ringbuffer.h
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.h
@@ -234,6 +234,7 @@ 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);