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drm/i915: Include the last semaphore sync point in the error-state 

Should be useful to know what the driver thought the other ring's seqno
was when it last used a semaphore.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Chris Wilson 2012-11-27 17:06:54 +00:00 committed by Daniel Vetter
parent 3e9605018a
commit df2b23d979
3 changed files with 9 additions and 4 deletions
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10
drivers/gpu/drm/i915/i915_debugfs.c
View File

@ -655,10 +655,12 @@ static void i915_ring_error_state(struct seq_file *m,
if (INTEL_INFO(dev)->gen >= 6) {
seq_printf(m, " RC PSMI: 0x%08x\n", error->rc_psmi[ring]);
seq_printf(m, " FAULT_REG: 0x%08x\n", error->fault_reg[ring]);
seq_printf(m, " SYNC_0: 0x%08x\n",
error->semaphore_mboxes[ring][0]);
seq_printf(m, " SYNC_1: 0x%08x\n",
error->semaphore_mboxes[ring][1]);
seq_printf(m, " SYNC_0: 0x%08x [last synced 0x%08x]\n",
error->semaphore_mboxes[ring][0],
error->semaphore_seqno[ring][0]);
seq_printf(m, " SYNC_1: 0x%08x [last synced 0x%08x]\n",
error->semaphore_mboxes[ring][1],
error->semaphore_seqno[ring][1]);
}
seq_printf(m, " seqno: 0x%08x\n", error->seqno[ring]);
seq_printf(m, " waiting: %s\n", yesno(error->waiting[ring]));

1
drivers/gpu/drm/i915/i915_drv.h
View File

@ -197,6 +197,7 @@ struct drm_i915_error_state {
u32 instdone[I915_NUM_RINGS];
u32 acthd[I915_NUM_RINGS];
u32 semaphore_mboxes[I915_NUM_RINGS][I915_NUM_RINGS - 1];
u32 semaphore_seqno[I915_NUM_RINGS][I915_NUM_RINGS - 1];
u32 rc_psmi[I915_NUM_RINGS]; /* sleep state */
/* our own tracking of ring head and tail */
u32 cpu_ring_head[I915_NUM_RINGS];

2
drivers/gpu/drm/i915/i915_irq.c
View File

@ -1120,6 +1120,8 @@ static void i915_record_ring_state(struct drm_device *dev,
= I915_READ(RING_SYNC_0(ring->mmio_base));
error->semaphore_mboxes[ring->id][1]
= I915_READ(RING_SYNC_1(ring->mmio_base));
error->semaphore_seqno[ring->id][0] = ring->sync_seqno[0];
error->semaphore_seqno[ring->id][1] = ring->sync_seqno[1];
}
if (INTEL_INFO(dev)->gen >= 4) {