diff options
| author | Jonas Aaberg <jonas.aberg@stericsson.com> | 2010-06-30 14:00:40 +0200 |
|---|---|---|
| committer | Philippe Langlais <philippe.langlais@stericsson.com> | 2012-05-22 11:03:23 +0200 |
| commit | bc52cfb0c0aebaed24dab77b33477a20d4e0a430 (patch) | |
| tree | 0336a7e021e3d250e291aea208de33523df6eb43 /arch/arm/include | |
| parent | a4f60cc32fdd87e7cc2c85275bc4f667a6b60d56 (diff) | |
Boottime - A tool for automatic measurement of kernel and possible boot loader boot time.
The overhead is very low and the results will be found under sysfs/bootime, as well as
detailed results in debugfs under boottime/. The bootgraph* files are compatible with
scripts/bootgraph.pl. The reason for this patch is to provide data (sysfs/boottime)
suitable for automatic testcases as well as help for developers to reduce the boot
time (debugfs).
Signed-off-by: Jonas Aaberg <jonas.aberg@stericsson.com>
Reviewed-on: http://gerrit.lud.stericsson.com/gerrit/2760
Change-Id: Id8ea7226b3f1f783448962195193b90699d32fc6
Reviewed-on: http://gerrit.lud.stericsson.com/gerrit/3174
Tested-by: Mian Yousaf KAUKAB <mian.yousaf.kaukab@stericsson.com>
Reviewed-by: Srinidhi KASAGAR <srinidhi.kasagar@stericsson.com>
Signed-off-by: Mian Yousaf Kaukab <mian.yousaf.kaukab@stericsson.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Diffstat (limited to 'arch/arm/include')
| -rw-r--r-- | arch/arm/include/asm/setup.h | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/arch/arm/include/asm/setup.h b/arch/arm/include/asm/setup.h index 23ebc0c82a3..ea1384fea05 100644 --- a/arch/arm/include/asm/setup.h +++ b/arch/arm/include/asm/setup.h @@ -143,6 +143,23 @@ struct tag_memclk { __u32 fmemclk; }; +/* for automatic boot timing testcases */ +#define ATAG_BOOTTIME 0x41000403 +#define BOOTTIME_MAX_NAME_LEN 64 +#define BOOTTIME_MAX 10 + +struct boottime_entry { + u32 time; /* in us */ + u8 name[BOOTTIME_MAX_NAME_LEN]; +}; + +struct tag_boottime { + struct boottime_entry entry[BOOTTIME_MAX]; + u32 idle; /* in us */ + u32 total; /* in us */ + u8 num; +}; + struct tag { struct tag_header hdr; union { @@ -165,6 +182,10 @@ struct tag { * DC21285 specific */ struct tag_memclk memclk; + /* + * Boot time + */ + struct tag_boottime boottime; } u; }; |