diff options
Diffstat (limited to 'include/uapi/misc/amd-apml.h')
| -rw-r--r-- | include/uapi/misc/amd-apml.h | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/include/uapi/misc/amd-apml.h b/include/uapi/misc/amd-apml.h index f718675d3966..745b3338fc06 100644 --- a/include/uapi/misc/amd-apml.h +++ b/include/uapi/misc/amd-apml.h @@ -58,6 +58,21 @@ struct apml_mcamsr_msg { __u32 pad; }; +struct apml_reg_xfer_msg { + /* + * RMI register address offset + */ + __u16 reg_addr; + /* + * Register data for read/write + */ + __u8 data_in_out; + /* + * Register read or write + */ + __u8 rflag; +}; + /* * AMD sideband interface base IOCTL */ @@ -118,4 +133,20 @@ struct apml_mcamsr_msg { */ #define SBRMI_IOCTL_MCAMSR_CMD _IOWR(SB_BASE_IOCTL_NR, 2, struct apml_mcamsr_msg) +/** + * DOC: SBRMI_IOCTL_REG_XFER_CMD + * + * @Parameters + * + * @struct apml_reg_xfer_msg + * Pointer to the &struct apml_reg_xfer_msg that will contain the protocol + * information + * + * @Description + * IOCTL command for APML messages using generic _IOWR + * The IOCTL provides userspace access to AMD sideband register xfer protocol + * - Register xfer protocol to get/set hardware register for given offset + */ +#define SBRMI_IOCTL_REG_XFER_CMD _IOWR(SB_BASE_IOCTL_NR, 3, struct apml_reg_xfer_msg) + #endif /*_AMD_APML_H_*/ |