Add the context pin/unpin events to the trace for post-mortem debugging.
Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/i915/gt/intel_lrc.c | 5 +++++
drivers/gpu/drm/i915/gt/intel_ringbuffer.c | 3 +++
2 files changed, 8 insertions(+)
diff --git a/drivers/gpu/drm/i915/gt/intel_lrc.c b/drivers/gpu/drm/i915/gt/intel_lrc.c
index 2bc25e3f83e6..ce1aba3604b3 100644
--- a/drivers/gpu/drm/i915/gt/intel_lrc.c
+++ b/drivers/gpu/drm/i915/gt/intel_lrc.c
@@ -1509,6 +1509,8 @@ static void execlists_context_destroy(struct kref *kref)
static void execlists_context_unpin(struct intel_context *ce)
{
+ GEM_TRACE("%s context:%llx unpin\n",
+ ce->engine->name, ce->ring->timeline->fence_context);
i915_gem_context_unpin_hw_id(ce->gem_context);
i915_gem_object_unpin_map(ce->state->obj);
}
@@ -1567,6 +1569,9 @@ __execlists_context_pin(struct intel_context *ce,
ce->lrc_desc = lrc_descriptor(ce, engine);
ce->lrc_reg_state = vaddr + LRC_STATE_PN * PAGE_SIZE;
__execlists_update_reg_state(ce, engine);
+ GEM_TRACE("%s context:%llx pin ring:{head:%04x, tail:%04x}\n",
+ engine->name, ce->ring->timeline->fence_context,
+ ce->ring->head, ce->ring->tail);
return 0;
diff --git a/drivers/gpu/drm/i915/gt/intel_ringbuffer.c b/drivers/gpu/drm/i915/gt/intel_ringbuffer.c
index f094406dcc56..81f9b0422e6a 100644
--- a/drivers/gpu/drm/i915/gt/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/gt/intel_ringbuffer.c
@@ -1197,6 +1197,7 @@ int intel_ring_pin(struct intel_ring *ring)
GEM_BUG_ON(ring->vaddr);
ring->vaddr = addr;
+ GEM_TRACE("ring:%llx pin\n", ring->timeline->fence_context);
return 0;
err_ring:
@@ -1223,6 +1224,8 @@ void intel_ring_unpin(struct intel_ring *ring)
if (!atomic_dec_and_test(&ring->pin_count))
return;
+ GEM_TRACE("ring:%llx unpin\n", ring->timeline->fence_context);
+
/* Discard any unused bytes beyond that submitted to hw. */
intel_ring_reset(ring, ring->tail);
--
2.20.1
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