diff options
| author | Srinivas Pandruvada | 2019-06-27 00:38:45 +0200 |
|---|---|---|
| committer | Andy Shevchenko | 2019-07-02 17:41:16 +0200 |
| commit | fb5b36a413b9f30fba573fc2a596ab7142dfaf12 (patch) | |
| tree | 0e295d34f12f1d82dbf3d35e99fecb61900dadae /include/uapi/linux/isst_if.h | |
| parent | platform/x86: ISST: Store per CPU information (diff) | |
| download | kernel-qcow2-linux-fb5b36a413b9f30fba573fc2a596ab7142dfaf12.tar.gz kernel-qcow2-linux-fb5b36a413b9f30fba573fc2a596ab7142dfaf12.tar.xz kernel-qcow2-linux-fb5b36a413b9f30fba573fc2a596ab7142dfaf12.zip | |
platform/x86: ISST: Add IOCTL to Translate Linux logical CPU to PUNIT CPU number
Add processing for IOCTL command ISST_IF_GET_PHY_ID. This converts from the
Linux logical CPU to PUNIT CPU numbering scheme.
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Diffstat (limited to 'include/uapi/linux/isst_if.h')
| -rw-r--r-- | include/uapi/linux/isst_if.h | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/include/uapi/linux/isst_if.h b/include/uapi/linux/isst_if.h index fa94480b5f74..15d1f286a830 100644 --- a/include/uapi/linux/isst_if.h +++ b/include/uapi/linux/isst_if.h @@ -36,6 +36,34 @@ struct isst_if_platform_info { __u8 mmio_supported; }; +/** + * struct isst_if_cpu_map - CPU mapping between logical and physical CPU + * @logical_cpu: Linux logical CPU number + * @physical_cpu: PUNIT CPU number + * + * Used to convert from Linux logical CPU to PUNIT CPU numbering scheme. + * The PUNIT CPU number is different than APIC ID based CPU numbering. + */ +struct isst_if_cpu_map { + __u32 logical_cpu; + __u32 physical_cpu; +}; + +/** + * struct isst_if_cpu_maps - structure for CPU map IOCTL + * @cmd_count: Number of CPU mapping command in cpu_map[] + * @cpu_map[]: Holds one or more CPU map data structure + * + * This structure used with ioctl ISST_IF_GET_PHY_ID to send + * one or more CPU mapping commands. Here IOCTL return value indicates + * number of commands sent or error number if no commands have been sent. + */ +struct isst_if_cpu_maps { + __u32 cmd_count; + struct isst_if_cpu_map cpu_map[1]; +}; + #define ISST_IF_MAGIC 0xFE #define ISST_IF_GET_PLATFORM_INFO _IOR(ISST_IF_MAGIC, 0, struct isst_if_platform_info *) +#define ISST_IF_GET_PHY_ID _IOWR(ISST_IF_MAGIC, 1, struct isst_if_cpu_map *) #endif |