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authorChris Wilson <chris@chris-wilson.co.uk>2013-10-30 09:28:22 +0000
committerDaniel Vetter <daniel.vetter@ffwll.ch>2013-10-30 10:37:58 +0100
commit94e39e282ecd299b095f37cd0f521d83bd799b14 (patch)
tree1c5588c1eb250b4d6eafd0da40365a744f0a2f7e /drivers/gpu/drm/i915/i915_gpu_error.c
parentf4adcd247766e5b914f861ed143ff328f869bf80 (diff)
downloadlinaro-lsk-94e39e282ecd299b095f37cd0f521d83bd799b14.tar.gz
drm/i915: Capture batchbuffer state upon GPU hang
The bbstate contains useful bits of debugging information such as whether the batch is being read from GTT or PPGTT, or whether it is allowed to execute privileged instructions. v2: Only record BB_STATE for gen4+ Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/i915/i915_gpu_error.c')
-rw-r--r--drivers/gpu/drm/i915/i915_gpu_error.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/i915_gpu_error.c b/drivers/gpu/drm/i915/i915_gpu_error.c
index 5dde8102647..a8bb213da79 100644
--- a/drivers/gpu/drm/i915/i915_gpu_error.c
+++ b/drivers/gpu/drm/i915/i915_gpu_error.c
@@ -249,7 +249,8 @@ static void i915_ring_error_state(struct drm_i915_error_state_buf *m,
err_printf(m, " INSTDONE: 0x%08x\n", error->instdone[ring]);
if (ring == RCS && INTEL_INFO(dev)->gen >= 4)
err_printf(m, " BBADDR: 0x%08llx\n", error->bbaddr);
-
+ if (INTEL_INFO(dev)->gen >= 4)
+ err_printf(m, " BB_STATE: 0x%08x\n", error->bbstate[ring]);
if (INTEL_INFO(dev)->gen >= 4)
err_printf(m, " INSTPS: 0x%08x\n", error->instps[ring]);
err_printf(m, " INSTPM: 0x%08x\n", error->instpm[ring]);
@@ -725,6 +726,7 @@ static void i915_record_ring_state(struct drm_device *dev,
error->instps[ring->id] = I915_READ(RING_INSTPS(ring->mmio_base));
if (ring->id == RCS)
error->bbaddr = I915_READ64(BB_ADDR);
+ error->bbstate[ring->id] = I915_READ(RING_BBSTATE(ring->mmio_base));
} else {
error->faddr[ring->id] = I915_READ(DMA_FADD_I8XX);
error->ipeir[ring->id] = I915_READ(IPEIR);