diff options
Diffstat (limited to 'drivers/hwtracing/coresight/ultrasoc-smb.h')
| -rw-r--r-- | drivers/hwtracing/coresight/ultrasoc-smb.h | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/drivers/hwtracing/coresight/ultrasoc-smb.h b/drivers/hwtracing/coresight/ultrasoc-smb.h index d2e14e8d2c8a..323f0ccb6878 100644 --- a/drivers/hwtracing/coresight/ultrasoc-smb.h +++ b/drivers/hwtracing/coresight/ultrasoc-smb.h @@ -7,8 +7,9 @@ #ifndef _ULTRASOC_SMB_H #define _ULTRASOC_SMB_H +#include <linux/bitfield.h> #include <linux/miscdevice.h> -#include <linux/mutex.h> +#include <linux/spinlock.h> /* Offset of SMB global registers */ #define SMB_GLB_CFG_REG 0x00 @@ -105,21 +106,19 @@ struct smb_data_buffer { * @csdev: Component vitals needed by the framework. * @sdb: Data buffer for SMB. * @miscdev: Specifics to handle "/dev/xyz.smb" entry. - * @mutex: Control data access to one at a time. + * @spinlock: Control data access to one at a time. * @reading: Synchronise user space access to SMB buffer. * @pid: Process ID of the process being monitored by the * session that is using this component. - * @mode: How this SMB is being used, perf mode or sysfs mode. */ struct smb_drv_data { void __iomem *base; struct coresight_device *csdev; struct smb_data_buffer sdb; struct miscdevice miscdev; - struct mutex mutex; + raw_spinlock_t spinlock; bool reading; pid_t pid; - enum cs_mode mode; }; #endif |