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authorChris Wilson <chris@chris-wilson.co.uk>2014-04-09 09:19:44 +0100
committerDaniel Vetter <daniel.vetter@ffwll.ch>2014-05-05 09:08:40 +0200
commit48e48a0b8c1d2ceb87ad2b256a7219e9c1b998d6 (patch)
treeb3b074348e4132863664dec29f00ee454c9bb2ee /drivers/gpu/drm/i915/intel_ringbuffer.c
parent074c6adaf4e7d1423d373bd5d1afc20b683cb4d0 (diff)
downloadop-kernel-dev-48e48a0b8c1d2ceb87ad2b256a7219e9c1b998d6.zip
op-kernel-dev-48e48a0b8c1d2ceb87ad2b256a7219e9c1b998d6.tar.gz
drm/i915: Include a little more information about why ring init fails
If we include the expected values for the failing ring register checks, it makes it marginally easier to see which is the culprit. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Oscar Mateo <oscar.mateo@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/i915/intel_ringbuffer.c')
-rw-r--r--drivers/gpu/drm/i915/intel_ringbuffer.c11
1 files changed, 5 insertions, 6 deletions
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c
index 7d99e84..8a2bd5a 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
@@ -523,12 +523,11 @@ static int init_ring_common(struct intel_ring_buffer *ring)
I915_READ_START(ring) == i915_gem_obj_ggtt_offset(obj) &&
(I915_READ_HEAD(ring) & HEAD_ADDR) == 0, 50)) {
DRM_ERROR("%s initialization failed "
- "ctl %08x head %08x tail %08x start %08x\n",
- ring->name,
- I915_READ_CTL(ring),
- I915_READ_HEAD(ring),
- I915_READ_TAIL(ring),
- I915_READ_START(ring));
+ "ctl %08x (valid? %d) head %08x tail %08x start %08x [expected %08lx]\n",
+ ring->name,
+ I915_READ_CTL(ring), I915_READ_CTL(ring) & RING_VALID,
+ I915_READ_HEAD(ring), I915_READ_TAIL(ring),
+ I915_READ_START(ring), (unsigned long)i915_gem_obj_ggtt_offset(obj));
ret = -EIO;
goto out;
}
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