Paul Menzel has uploaded this change for review.
drivers/intel/gma/edid: Measure execution time of EDID read function
Getting more data, it might turn out, that storing the EDID data in CBFS
might save some time.
Change-Id: I4c3672ef85bfc2d206620e689626573e04a0f63b
Signed-off-by: Paul Menzel <pmenzel@molgen.mpg.de>
---
M src/drivers/intel/gma/edid.c
1 file changed, 5 insertions(+), 0 deletions(-)
git pull ssh://review.coreboot.org:29418/coreboot refs/changes/46/38646/1
diff --git a/src/drivers/intel/gma/edid.c b/src/drivers/intel/gma/edid.c
index 7e6c840..6885f98 100644
--- a/src/drivers/intel/gma/edid.c
+++ b/src/drivers/intel/gma/edid.c
@@ -15,6 +15,7 @@
#include <device/mmio.h>
#include <console/console.h>
#include <delay.h>
+#include <timer.h>
#include "i915_reg.h"
#include "edid.h"
@@ -66,10 +67,12 @@
void intel_gmbus_read_edid(u8 *mmio, u8 bus, u8 slave, u8 *edid, u32 edid_size)
{
unsigned int i;
+ struct stopwatch sw;
slave &= 0x7f;
edid_size &= 0x1fc;
+ stopwatch_init(&sw);
wait_rdy(mmio);
/* 100 KHz, hold 0ns, */
write32(GMBUS0_ADDR, bus);
@@ -107,4 +110,6 @@
if ((i & 0xf) == 0xf)
printk (BIOS_SPEW, "\n");
}
+ printk(BIOS_DEBUG, "%s finished in %lu msecs\n", __func__,
+ stopwatch_duration_msecs(&sw));
}
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