diff options
| author | Tony Lin <tony.lin@freescale.com> | 2011-01-11 18:01:03 +0800 |
|---|---|---|
| committer | Alan Tull <alan.tull@freescale.com> | 2011-02-03 16:43:57 -0600 |
| commit | c8d1b563e333b50938c3a904f45cfc1100e69a37 (patch) | |
| tree | e0049198e6f1849e8c218b693db1a48d0e5fccd1 /include | |
| parent | c8d17a24a501c578d24fd3fcdf071f0fa4b6aee9 (diff) | |
ENGR00137979-3 add performance monitor driver
add performance monitor driver.
sample:
cd /sys/devices/platform/mxs-perfmon.0/
'echo 1 > MIDn-xxx' to enable monitor this channel
n: channel number; xxx: name of channel (PXP, LCD...)
you can enable the multiple channels you want to
monitor respectively using this command.
use following command to check the channel is enabled
'cat MIDn-xxx'
1: enable; 0: disable
'echo read > Monitor' to monitor all read activities
'echo start > Monitor' to start monitoring
'echo fetch > Monitor' to get a snapshot of monitor statistics.
'cat xxx_Count' to show the statistics.
xxx: name of statistics, (Data, Transfer, Latency...)
'echo clear > Monitor' to clear snapshot of monitor statistics.
'echo stop > Monitor' to stop monitoring
Signed-off-by: Tony Lin <tony.lin@freescale.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/fsl_devices.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/include/linux/fsl_devices.h b/include/linux/fsl_devices.h index 91d4d427d727..0e6e744f828c 100644 --- a/include/linux/fsl_devices.h +++ b/include/linux/fsl_devices.h @@ -630,4 +630,15 @@ int fsl_deep_sleep(void); static inline int fsl_deep_sleep(void) { return 0; } #endif +struct mxs_perfmon_bit_config { + int reg; + int field; + const char *name; +}; + +struct mxs_platform_perfmon_data { + struct mxs_perfmon_bit_config *bit_config_tab; + int bit_config_cnt; +}; + #endif /* _FSL_DEVICE_H_ */ |