This is precursor to some work I'm doing, but I think it stands nicely
as its own refactor.
v2: skip teardown returning on success (BUG)
Reviewed-by: Chris Wilson <chris at chris-wilson.co.uk>
Signed-off-by: Ben Widawsky <ben at bwidawsk.net>
---
drivers/gpu/drm/i915/i915_gem.c | 36 +---------------------
drivers/gpu/drm/i915/intel_ringbuffer.c | 53 +++++++++++++++++++++++++++++++--
drivers/gpu/drm/i915/intel_ringbuffer.h | 6 ++--
3 files changed, 53 insertions(+), 42 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 53c3946..3a5983b 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -3726,22 +3726,6 @@ void i915_gem_init_ppgtt(struct drm_device *dev)
}
}
-static bool
-intel_enable_blt(struct drm_device *dev)
-{
- if (!HAS_BLT(dev))
- return false;
-
- /* The blitter was dysfunctional on early prototypes */
- if (IS_GEN6(dev) && dev->pdev->revision < 8) {
- DRM_INFO("BLT not supported on this pre-production hardware;"
- " graphics performance will be degraded.\n");
- return false;
- }
-
- return true;
-}
-
int
i915_gem_init_hw(struct drm_device *dev)
{
@@ -3755,22 +3739,10 @@ i915_gem_init_hw(struct drm_device *dev)
i915_gem_init_swizzling(dev);
- ret = intel_init_render_ring_buffer(dev);
+ ret = intel_init_ring_buffers(dev);
if (ret)
return ret;
- if (HAS_BSD(dev)) {
- ret = intel_init_bsd_ring_buffer(dev);
- if (ret)
- goto cleanup_render_ring;
- }
-
- if (intel_enable_blt(dev)) {
- ret = intel_init_blt_ring_buffer(dev);
- if (ret)
- goto cleanup_bsd_ring;
- }
-
dev_priv->next_seqno = 1;
/*
@@ -3781,12 +3753,6 @@ i915_gem_init_hw(struct drm_device *dev)
i915_gem_init_ppgtt(dev);
return 0;
-
-cleanup_bsd_ring:
- intel_cleanup_ring_buffer(&dev_priv->ring[VCS]);
-cleanup_render_ring:
- intel_cleanup_ring_buffer(&dev_priv->ring[RCS]);
- return ret;
}
static bool
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c
index ddc4859..13e078c 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
@@ -1359,7 +1359,7 @@ static int blt_ring_flush(struct intel_ring_buffer *ring,
return 0;
}
-int intel_init_render_ring_buffer(struct drm_device *dev)
+static int intel_init_render_ring_buffer(struct drm_device *dev)
{
drm_i915_private_t *dev_priv = dev->dev_private;
struct intel_ring_buffer *ring = &dev_priv->ring[RCS];
@@ -1489,7 +1489,7 @@ int intel_render_ring_init_dri(struct drm_device *dev, u64 start, u32 size)
return 0;
}
-int intel_init_bsd_ring_buffer(struct drm_device *dev)
+static int intel_init_bsd_ring_buffer(struct drm_device *dev)
{
drm_i915_private_t *dev_priv = dev->dev_private;
struct intel_ring_buffer *ring = &dev_priv->ring[VCS];
@@ -1538,7 +1538,7 @@ int intel_init_bsd_ring_buffer(struct drm_device *dev)
return intel_init_ring_buffer(dev, ring);
}
-int intel_init_blt_ring_buffer(struct drm_device *dev)
+static int intel_init_blt_ring_buffer(struct drm_device *dev)
{
drm_i915_private_t *dev_priv = dev->dev_private;
struct intel_ring_buffer *ring = &dev_priv->ring[BCS];
@@ -1565,3 +1565,50 @@ int intel_init_blt_ring_buffer(struct drm_device *dev)
return intel_init_ring_buffer(dev, ring);
}
+
+static bool
+intel_enable_blt(struct drm_device *dev)
+{
+ if (!HAS_BLT(dev))
+ return false;
+
+ /* The blitter was dysfunctional on early prototypes */
+ if (IS_GEN6(dev) && dev->pdev->revision < 8) {
+ DRM_INFO("BLT not supported on this pre-production hardware;"
+ " graphics performance will be degraded.\n");
+ return false;
+ }
+
+ return true;
+}
+
+int intel_init_ring_buffers(struct drm_device *dev)
+{
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ int ret;
+
+ ret = intel_init_render_ring_buffer(dev);
+ if (ret)
+ return ret;
+
+ if (HAS_BSD(dev)) {
+ ret = intel_init_bsd_ring_buffer(dev);
+ if (ret)
+ goto cleanup_render_ring;
+ }
+
+ if (intel_enable_blt(dev)) {
+ ret = intel_init_blt_ring_buffer(dev);
+ if (ret)
+ goto cleanup_bsd_ring;
+ }
+
+ return 0;
+
+cleanup_bsd_ring:
+ intel_cleanup_ring_buffer(&dev_priv->ring[VCS]);
+cleanup_render_ring:
+ intel_cleanup_ring_buffer(&dev_priv->ring[RCS]);
+
+ return ret;
+}
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.h b/drivers/gpu/drm/i915/intel_ringbuffer.h
index 1d3c81f..ce0dd43 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.h
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.h
@@ -185,6 +185,8 @@ intel_read_status_page(struct intel_ring_buffer *ring,
#define I915_GEM_HWS_INDEX 0x20
void intel_cleanup_ring_buffer(struct intel_ring_buffer *ring);
+int intel_init_ring_buffers(struct drm_device *dev);
+
int __must_check intel_wait_ring_buffer(struct intel_ring_buffer *ring, int n);
static inline int intel_wait_ring_idle(struct intel_ring_buffer *ring)
@@ -205,10 +207,6 @@ void intel_ring_advance(struct intel_ring_buffer *ring);
u32 intel_ring_get_seqno(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);
-
u32 intel_ring_get_active_head(struct intel_ring_buffer *ring);
void intel_ring_setup_status_page(struct intel_ring_buffer *ring);
--
1.7.11.1
