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drm/i915: track ring progression using seqnos

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Instead of relying in acthd, track ring seqno progression
to detect if ring has hung.

v2: put hangcheck stuff inside struct (Chris Wilson)

v3: initialize hangcheck.seqno (Ben Widawsky)

Signed-off-by: Mika Kuoppala <mika.kuoppala@intel.com>
Reviewed-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Mika Kuoppala
2013-05-24 17:16:07 +03:00
committed by Daniel Vetter
parent 79ee20dc85
commit 92cab73451
4 changed files with 20 additions and 19 deletions
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6
drivers/gpu/drm/i915/intel_ringbuffer.h
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@@ -37,6 +37,10 @@ struct intel_hw_status_page {
#define I915_READ_SYNC_0(ring) I915_READ(RING_SYNC_0((ring)->mmio_base))
#define I915_READ_SYNC_1(ring) I915_READ(RING_SYNC_1((ring)->mmio_base))
struct intel_ring_hangcheck {
u32 seqno;
};
struct intel_ring_buffer {
const char *name;
enum intel_ring_id {
@@ -137,6 +141,8 @@ struct intel_ring_buffer {
struct i915_hw_context *default_context;
struct i915_hw_context *last_context;
struct intel_ring_hangcheck hangcheck;
void *private;
};