2 files changed, 142 insertions, 0 deletions

diff --git a/arch/powerpc/perf/hv-24x7-catalog.h b/arch/powerpc/perf/hv-24x7-catalog.h
new file mode 100644
index 000000000000..21b19dd86d9c
--- /dev/null
+++ b/arch/powerpc/perf/hv-24x7-catalog.h
@@ -0,0 +1,33 @@
+#ifndef LINUX_POWERPC_PERF_HV_24X7_CATALOG_H_
+#define LINUX_POWERPC_PERF_HV_24X7_CATALOG_H_
+
+#include <linux/types.h>
+
+/* From document "24x7 Event and Group Catalog Formats Proposal" v0.15 */
+
+struct hv_24x7_catalog_page_0 {
+#define HV_24X7_CATALOG_MAGIC 0x32347837 /* "24x7" in ASCII */
+        __be32 magic;
+        __be32 length; /* In 4096 byte pages */
+        __be64 version; /* XXX: arbitrary? what's the meaning/useage/purpose? */
+        __u8 build_time_stamp[16]; /* "YYYYMMDDHHMMSS\0\0" */
+        __u8 reserved2[32];
+        __be16 schema_data_offs; /* in 4096 byte pages */
+        __be16 schema_data_len;  /* in 4096 byte pages */
+        __be16 schema_entry_count;
+        __u8 reserved3[2];
+        __be16 event_data_offs;
+        __be16 event_data_len;
+        __be16 event_entry_count;
+        __u8 reserved4[2];
+        __be16 group_data_offs; /* in 4096 byte pages */
+        __be16 group_data_len;  /* in 4096 byte pages */
+        __be16 group_entry_count;
+        __u8 reserved5[2];
+        __be16 formula_data_offs; /* in 4096 byte pages */
+        __be16 formula_data_len;  /* in 4096 byte pages */
+        __be16 formula_entry_count;
+        __u8 reserved6[2];
+} __packed;
+
+#endif
diff --git a/arch/powerpc/perf/hv-24x7.h b/arch/powerpc/perf/hv-24x7.h
new file mode 100644
index 000000000000..720ebce4b435
--- /dev/null
+++ b/arch/powerpc/perf/hv-24x7.h
@@ -0,0 +1,109 @@
+#ifndef LINUX_POWERPC_PERF_HV_24X7_H_
+#define LINUX_POWERPC_PERF_HV_24X7_H_
+
+#include <linux/types.h>
+
+struct hv_24x7_request {
+        /* PHYSICAL domains require enabling via phyp/hmc. */
+#define HV_24X7_PERF_DOMAIN_PHYSICAL_CHIP 0x01
+#define HV_24X7_PERF_DOMAIN_PHYSICAL_CORE 0x02
+#define HV_24X7_PERF_DOMAIN_VIRTUAL_PROCESSOR_HOME_CORE   0x03
+#define HV_24X7_PERF_DOMAIN_VIRTUAL_PROCESSOR_HOME_CHIP   0x04
+#define HV_24X7_PERF_DOMAIN_VIRTUAL_PROCESSOR_HOME_NODE   0x05
+#define HV_24X7_PERF_DOMAIN_VIRTUAL_PROCESSOR_REMOTE_NODE 0x06
+        __u8 performance_domain;
+        __u8 reserved[0x1];
+
+        /* bytes to read starting at @data_offset. must be a multiple of 8 */
+        __be16 data_size;
+
+        /*
+         * byte offset within the perf domain to read from. must be 8 byte
+         * aligned
+         */
+        __be32 data_offset;
+
+        /*
+         * only valid for VIRTUAL_PROCESSOR domains, ignored for others.
+         * -1 means "current partition only"
+         *  Enabling via phyp/hmc required for non-"-1" values. 0 forbidden
+         *  unless requestor is 0.
+         */
+        __be16 starting_lpar_ix;
+
+        /*
+         * Ignored when @starting_lpar_ix == -1
+         * Ignored when @performance_domain is not VIRTUAL_PROCESSOR_*
+         * -1 means "infinite" or all
+         */
+        __be16 max_num_lpars;
+
+        /* chip, core, or virtual processor based on @performance_domain */
+        __be16 starting_ix;
+        __be16 max_ix;
+} __packed;
+
+struct hv_24x7_request_buffer {
+        /* 0 - ? */
+        /* 1 - ? */
+#define HV_24X7_IF_VERSION_CURRENT 0x01
+        __u8 interface_version;
+        __u8 num_requests;
+        __u8 reserved[0xE];
+        struct hv_24x7_request requests[];
+} __packed;
+
+struct hv_24x7_result_element {
+        __be16 lpar_ix;
+
+        /*
+         * represents the core, chip, or virtual processor based on the
+         * request's @performance_domain
+         */
+        __be16 domain_ix;
+
+        /* -1 if @performance_domain does not refer to a virtual processor */
+        __be32 lpar_cfg_instance_id;
+
+        /* size = @result_element_data_size of cointaining result. */
+        __u8 element_data[];
+} __packed;
+
+struct hv_24x7_result {
+        __u8 result_ix;
+
+        /*
+         * 0 = not all result elements fit into the buffer, additional requests
+         *     required
+         * 1 = all result elements were returned
+         */
+        __u8 results_complete;
+        __be16 num_elements_returned;
+
+        /* This is a copy of @data_size from the coresponding hv_24x7_request */
+        __be16 result_element_data_size;
+        __u8 reserved[0x2];
+
+        /* WARNING: only valid for first result element due to variable sizes
+         *          of result elements */
+        /* struct hv_24x7_result_element[@num_elements_returned] */
+        struct hv_24x7_result_element elements[];
+} __packed;
+
+struct hv_24x7_data_result_buffer {
+        /* See versioning for request buffer */
+        __u8 interface_version;
+
+        __u8 num_results;
+        __u8 reserved[0x1];
+        __u8 failing_request_ix;
+        __be32 detailed_rc;
+        __be64 cec_cfg_instance_id;
+        __be64 catalog_version_num;
+        __u8 reserved2[0x8];
+        /* WARNING: only valid for the first result due to variable sizes of
+         *          results */
+        struct hv_24x7_result results[]; /* [@num_results] */
+} __packed;
+
+#endif