Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / arch / powerpc / perf / hv-24x7.h

diff --git a/kernel/arch/powerpc/perf/hv-24x7.h b/kernel/arch/powerpc/perf/hv-24x7.h
new file mode 100644 (file)
index 0000000..0f9fa21
--- /dev/null
+++ b/kernel/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>
+
+enum hv_perf_domains {
+#define DOMAIN(n, v, x, c) HV_PERF_DOMAIN_##n = v,
+#include "hv-24x7-domains.h"
+#undef DOMAIN
+};
+
+struct hv_24x7_request {
+       /* PHYSICAL domains require enabling via phyp/hmc. */
+       __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[1];
+} __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. */
+       __u64 element_data[1];
+} __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[1];
+} __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[1]; /* [@num_results] */
+} __packed;
+
+#endif