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9e9f601084
This adds (in req-gen/) a framework for defining gpci counter requests. It uses macro magic similar to ftrace. Also convert the existing hv-gpci request structures and enum values to use the new framework (and adjust old users of the structs and enum values to cope with changes in naming). In exchange for this macro disaster, we get autogenerated event listing for GPCI in sysfs, build time field offset checking, and zero duplication of information about GPCI requests. Signed-off-by: Cody P Schafer <cody@linux.vnet.ibm.com> Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
61 lines
1.4 KiB
C
61 lines
1.4 KiB
C
#ifndef LINUX_POWERPC_PERF_HV_GPCI_H_
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#define LINUX_POWERPC_PERF_HV_GPCI_H_
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#include <linux/types.h>
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/* From the document "H_GetPerformanceCounterInfo Interface" v1.07 */
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/* H_GET_PERF_COUNTER_INFO argument */
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struct hv_get_perf_counter_info_params {
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__be32 counter_request; /* I */
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__be32 starting_index; /* IO */
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__be16 secondary_index; /* IO */
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__be16 returned_values; /* O */
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__be32 detail_rc; /* O, only needed when called via *_norets() */
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/*
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* O, size each of counter_value element in bytes, only set for version
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* >= 0x3
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*/
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__be16 cv_element_size;
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/* I, 0 (zero) for versions < 0x3 */
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__u8 counter_info_version_in;
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/* O, 0 (zero) if version < 0x3. Must be set to 0 when making hcall */
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__u8 counter_info_version_out;
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__u8 reserved[0xC];
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__u8 counter_value[];
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} __packed;
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/*
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* counter info version => fw version/reference (spec version)
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*
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* 8 => power8 (1.07)
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* [7 is skipped by spec 1.07]
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* 6 => TLBIE (1.07)
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* 5 => v7r7m0.phyp (1.05)
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* [4 skipped]
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* 3 => v7r6m0.phyp (?)
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* [1,2 skipped]
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* 0 => v7r{2,3,4}m0.phyp (?)
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*/
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#define COUNTER_INFO_VERSION_CURRENT 0x8
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/* capability mask masks. */
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enum {
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HV_GPCI_CM_GA = (1 << 7),
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HV_GPCI_CM_EXPANDED = (1 << 6),
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HV_GPCI_CM_LAB = (1 << 5)
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};
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#define REQUEST_FILE "../hv-gpci-requests.h"
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#define NAME_LOWER hv_gpci
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#define NAME_UPPER HV_GPCI
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#include "req-gen/perf.h"
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#undef REQUEST_FILE
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#undef NAME_LOWER
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#undef NAME_UPPER
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#endif
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