From d6644d737bec473a38dbd44a71553cacd636a920 Mon Sep 17 00:00:00 2001 From: Srinivas Pandruvada Date: Tue, 6 May 2025 09:35:30 -0700 Subject: platform/x86: ISST: Support SST-PP revision 2 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit SST PP revision 2 added fabric 1 P0, P1 and Pm frequencies. Export them by using a new IOCTL ISST_IF_GET_PERF_LEVEL_FABRIC_INFO. This IOCTL requires platforms with SST PP revision 2 or higher. To accommodate potential future increases in fabric count and avoid ABI changes, support is extended for up to 8 fabrics. Signed-off-by: Srinivas Pandruvada Link: https://lore.kernel.org/r/20250506163531.1061185-3-srinivas.pandruvada@linux.intel.com Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen --- include/uapi/linux/isst_if.h | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) (limited to 'include/uapi/linux') diff --git a/include/uapi/linux/isst_if.h b/include/uapi/linux/isst_if.h index 0df1a1c3caf4..8197a4800604 100644 --- a/include/uapi/linux/isst_if.h +++ b/include/uapi/linux/isst_if.h @@ -375,6 +375,30 @@ struct isst_perf_level_data_info { __u16 trl_freq_mhz[TRL_MAX_LEVELS][TRL_MAX_BUCKETS]; }; +#define MAX_FABRIC_COUNT 8 + +/** + * struct isst_perf_level_fabric_info - Structure to get SST-PP fabric details + * @socket_id: Socket/package id + * @power_domain_id: Power Domain id + * @level: SST-PP level for which caller wants to get information + * @max_fabrics: Count of fabrics in resonse + * @p0_fabric_freq_mhz: Fabric (Uncore) maximum frequency + * @p1_fabric_freq_mhz: Fabric (Uncore) TDP frequency + * @pm_fabric_freq_mhz: Fabric (Uncore) minimum frequency + * + * Structure used to get information on frequencies for fabrics. + */ +struct isst_perf_level_fabric_info { + __u8 socket_id; + __u8 power_domain_id; + __u16 level; + __u16 max_fabrics; + __u16 p0_fabric_freq_mhz[MAX_FABRIC_COUNT]; + __u16 p1_fabric_freq_mhz[MAX_FABRIC_COUNT]; + __u16 pm_fabric_freq_mhz[MAX_FABRIC_COUNT]; +}; + /** * struct isst_perf_level_cpu_mask - Structure to get SST-PP level CPU mask * @socket_id: Socket/package id @@ -471,5 +495,7 @@ struct isst_turbo_freq_info { #define ISST_IF_GET_BASE_FREQ_INFO _IOR(ISST_IF_MAGIC, 14, struct isst_base_freq_info *) #define ISST_IF_GET_BASE_FREQ_CPU_MASK _IOR(ISST_IF_MAGIC, 15, struct isst_perf_level_cpu_mask *) #define ISST_IF_GET_TURBO_FREQ_INFO _IOR(ISST_IF_MAGIC, 16, struct isst_turbo_freq_info *) +#define ISST_IF_GET_PERF_LEVEL_FABRIC_INFO _IOR(ISST_IF_MAGIC, 17,\ + struct isst_perf_level_fabric_info *) #endif -- cgit v1.2.3