Signed-off-by: Kenneth Graunke <[email protected]>
Cc: Eric Anholt <[email protected]>
Cc: Carl Worth <[email protected]>
Cc: Juha-Pekka Heikkilä <[email protected]>
---
.../drivers/dri/i965/brw_performance_monitor.c | 42 ++++++++++++++++++++++
1 file changed, 42 insertions(+)
diff --git a/src/mesa/drivers/dri/i965/brw_performance_monitor.c
b/src/mesa/drivers/dri/i965/brw_performance_monitor.c
index fbce35b..85c395b 100644
--- a/src/mesa/drivers/dri/i965/brw_performance_monitor.c
+++ b/src/mesa/drivers/dri/i965/brw_performance_monitor.c
@@ -604,6 +604,48 @@ monitor_needs_oa(struct brw_context *brw,
}
/**
+ * Enable the Observability Architecture counters by whacking OACONTROL.
+ */
+static void
+start_oa_counters(struct brw_context *brw)
+{
+ unsigned counter_format;
+
+ /* Pick the counter format which gives us all the counters. */
+ switch (brw->gen) {
+ case 6:
+ counter_format = 1; /* 0b001 */
+ break;
+ case 7:
+ counter_format = 5; /* 0b101 */
+ break;
+ default:
+ assert(!"Tried to enable OA counters on an unsupported generation.");
+ return;
+ }
+
+ BEGIN_BATCH(3);
+ OUT_BATCH(MI_LOAD_REGISTER_IMM | (3 - 2));
+ OUT_BATCH(OACONTROL);
+ OUT_BATCH(counter_format << OACONTROL_COUNTER_SELECT_SHIFT |
+ OACONTROL_ENABLE_COUNTERS);
+ ADVANCE_BATCH();
+}
+
+/**
+ * Disable OA counters.
+ */
+static void
+stop_oa_counters(struct brw_context *brw)
+{
+ BEGIN_BATCH(3);
+ OUT_BATCH(MI_LOAD_REGISTER_IMM | (3 - 2));
+ OUT_BATCH(OACONTROL);
+ OUT_BATCH(0);
+ ADVANCE_BATCH();
+}
+
+/**
* The amount of batch space it takes to emit an MI_REPORT_PERF_COUNT snapshot,
* including the required PIPE_CONTROL flushes.
*
--
1.8.3.2
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