i965: Add INTEL_DEBUG=perfmon support.

This will enable debugging printfs for the AMD_performance_monitor code.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Eric Anholt <eric@anholt.net>

src/mesa/drivers/dri/i965/intel_debug.c

@@ -43,6 +43,7 @@ static const struct dri_debug_control debug_control[] = {
    { "mip",   DEBUG_MIPTREE},
    { "fall",  DEBUG_PERF},
    { "perf",  DEBUG_PERF},
+   { "perfmon", DEBUG_PERFMON},
    { "bat",   DEBUG_BATCH},
    { "pix",   DEBUG_PIXEL},
    { "buf",   DEBUG_BUFMGR},

src/mesa/drivers/dri/i965/intel_debug.h

@@ -39,6 +39,7 @@ extern int INTEL_DEBUG;
 #define DEBUG_BLIT	  0x8
 #define DEBUG_MIPTREE     0x10
 #define DEBUG_PERF	  0x20
+#define DEBUG_PERFMON     0x40
 #define DEBUG_BATCH       0x80
 #define DEBUG_PIXEL       0x100
 #define DEBUG_BUFMGR      0x200