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-rw-r--r--src/mesa/drivers/dri/i965/brw_context.h6
-rw-r--r--src/mesa/drivers/dri/i965/intel_buffer_objects.c40
2 files changed, 46 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_context.h b/src/mesa/drivers/dri/i965/brw_context.h
index afa335041e9..a0189b77bad 100644
--- a/src/mesa/drivers/dri/i965/brw_context.h
+++ b/src/mesa/drivers/dri/i965/brw_context.h
@@ -1658,6 +1658,12 @@ void brw_dump_perf_monitors(struct brw_context *brw);
void brw_perf_monitor_new_batch(struct brw_context *brw);
void brw_perf_monitor_finish_batch(struct brw_context *brw);
+/* intel_buffer_objects.c */
+int brw_bo_map(struct brw_context *brw, drm_intel_bo *bo, int write_enable,
+ const char *bo_name);
+int brw_bo_map_gtt(struct brw_context *brw, drm_intel_bo *bo,
+ const char *bo_name);
+
/* intel_extensions.c */
extern void intelInitExtensions(struct gl_context *ctx);
diff --git a/src/mesa/drivers/dri/i965/intel_buffer_objects.c b/src/mesa/drivers/dri/i965/intel_buffer_objects.c
index 4d7044a4722..a493c3b7d57 100644
--- a/src/mesa/drivers/dri/i965/intel_buffer_objects.c
+++ b/src/mesa/drivers/dri/i965/intel_buffer_objects.c
@@ -41,6 +41,46 @@
#include "intel_buffer_objects.h"
#include "intel_batchbuffer.h"
+/**
+ * Map a buffer object; issue performance warnings if mapping causes stalls.
+ *
+ * This matches the drm_intel_bo_map API, but takes an additional human-readable
+ * name for the buffer object to use in the performance debug message.
+ */
+int
+brw_bo_map(struct brw_context *brw,
+ drm_intel_bo *bo, int write_enable,
+ const char *bo_name)
+{
+ if (likely(!brw->perf_debug) || !drm_intel_bo_busy(bo))
+ return drm_intel_bo_map(bo, write_enable);
+
+ float start_time = get_time();
+
+ int ret = drm_intel_bo_map(bo, write_enable);
+
+ perf_debug("CPU mapping a busy %s BO stalled and took %.03f ms.\n",
+ bo_name, (get_time() - start_time) * 1000);
+
+ return ret;
+}
+
+int
+brw_bo_map_gtt(struct brw_context *brw, drm_intel_bo *bo, const char *bo_name)
+{
+ if (likely(!brw->perf_debug) || !drm_intel_bo_busy(bo))
+ return drm_intel_gem_bo_map_gtt(bo);
+
+ float start_time = get_time();
+
+ int ret = drm_intel_gem_bo_map_gtt(bo);
+
+ perf_debug("GTT mapping a busy %s BO stalled and took %.03f ms.\n",
+ bo_name, (get_time() - start_time) * 1000);
+
+ return ret;
+}
+
static GLboolean
intel_bufferobj_unmap(struct gl_context * ctx, struct gl_buffer_object *obj);