sravan/system76-coreboot
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

tegra132: measure romstage timings

Browse Source 
Measure the MTS load time, MTS initialization time, and
the ramstage verification/load time.

BUG=None
BRANCH=None
TEST=Booted and noted timings.

Change-Id: I1eb1e3a73316a3fa76ef8e73314bedde34c6c582
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: b5b34a3abd388359b7d1cba5a858e4e5a402b476
Original-Change-Id: I71119689182e86406d5052f007908152d41e9092
Original-Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/219715
Original-Reviewed-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-on: http://review.coreboot.org/9103
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
This commit is contained in:
Aaron Durbin 2014-09-24 09:13:14 -05:00 committed by Patrick Georgi
parent 852b50c87f
commit 4f9150bf23
2 changed files with 13 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
src/soc/nvidia/tegra132/ccplex.c
View File

@ -67,7 +67,7 @@ static int ccplex_start(void)
} }
} }
printk(BIOS_DEBUG, "MTS handshake took %ld us.\n", printk(BIOS_DEBUG, "MTS handshake took %ld usecs.\n",
stopwatch_duration_usecs(&sw)); stopwatch_duration_usecs(&sw));
return 0; return 0;
@ -78,6 +78,8 @@ int ccplex_load_mts(void)
struct cbfs_file file; struct cbfs_file file;
ssize_t offset; ssize_t offset;
size_t nread; size_t nread;
struct stopwatch sw;
/* /*
* MTS location is hard coded to this magic address. The hardware will * MTS location is hard coded to this magic address. The hardware will
* take the MTS from this location and place it in the final resting * take the MTS from this location and place it in the final resting
@ -86,6 +88,7 @@ int ccplex_load_mts(void)
void * const mts = (void *)(uintptr_t)MTS_LOAD_ADDRESS; void * const mts = (void *)(uintptr_t)MTS_LOAD_ADDRESS;
struct cbfs_media *media = CBFS_DEFAULT_MEDIA; struct cbfs_media *media = CBFS_DEFAULT_MEDIA;
stopwatch_init(&sw);
offset = cbfs_locate_file(media, &file, MTS_FILE_NAME); offset = cbfs_locate_file(media, &file, MTS_FILE_NAME);
if (offset < 0) { if (offset < 0) {
printk(BIOS_DEBUG, "MTS file not found: %s\n", MTS_FILE_NAME); printk(BIOS_DEBUG, "MTS file not found: %s\n", MTS_FILE_NAME);
@ -101,7 +104,8 @@ int ccplex_load_mts(void)
return -1; return -1;
} }
printk(BIOS_DEBUG, "MTS: %zu bytes loaded @ %p\n", nread, mts); printk(BIOS_DEBUG, "MTS: %zu bytes loaded @ %p in %ld usecs.\n",
nread, mts, stopwatch_duration_usecs(&sw));
return ccplex_start(); return ccplex_start();
} }

7
src/soc/nvidia/tegra132/romstage.c
View File

@ -22,6 +22,7 @@
#include <cbmem.h> #include <cbmem.h>
#include <console/cbmem_console.h> #include <console/cbmem_console.h>
#include <console/console.h> #include <console/console.h>
#include <timer.h>
#include <arch/exception.h> #include <arch/exception.h>
#include <soc/addressmap.h> #include <soc/addressmap.h>
@ -40,6 +41,9 @@ void __attribute__((weak)) romstage_mainboard_init(void)
static void *load_ramstage(void) static void *load_ramstage(void)
{ {
void *entry; void *entry;
struct stopwatch sw;
stopwatch_init(&sw);
/* /*
* This platform does not need to cache a loaded ramstage nor do we * This platform does not need to cache a loaded ramstage nor do we
* go down this path on resume. Therefore, no romstage_handoff is * go down this path on resume. Therefore, no romstage_handoff is
@ -48,6 +52,9 @@ static void *load_ramstage(void)
entry = cbfs_load_stage(CBFS_DEFAULT_MEDIA, entry = cbfs_load_stage(CBFS_DEFAULT_MEDIA,
CONFIG_CBFS_PREFIX "/ramstage"); CONFIG_CBFS_PREFIX "/ramstage");
printk(BIOS_DEBUG, "Ramstage load time: %ld usecs.\n",
stopwatch_duration_usecs(&sw));
return entry; return entry;
} }