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Diffstat (limited to '')
| -rw-r--r-- | arch/powerpc/perf/hv-gpci.h | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/arch/powerpc/perf/hv-gpci.h b/arch/powerpc/perf/hv-gpci.h new file mode 100644 index 000000000..a3053eda5 --- /dev/null +++ b/arch/powerpc/perf/hv-gpci.h @@ -0,0 +1,61 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef LINUX_POWERPC_PERF_HV_GPCI_H_ +#define LINUX_POWERPC_PERF_HV_GPCI_H_ + +#include <linux/types.h> + +/* From the document "H_GetPerformanceCounterInfo Interface" v1.07 */ + +/* H_GET_PERF_COUNTER_INFO argument */ +struct hv_get_perf_counter_info_params { + __be32 counter_request; /* I */ + __be32 starting_index; /* IO */ + __be16 secondary_index; /* IO */ + __be16 returned_values; /* O */ + __be32 detail_rc; /* O, only needed when called via *_norets() */ + + /* + * O, size each of counter_value element in bytes, only set for version + * >= 0x3 + */ + __be16 cv_element_size; + + /* I, 0 (zero) for versions < 0x3 */ + __u8 counter_info_version_in; + + /* O, 0 (zero) if version < 0x3. Must be set to 0 when making hcall */ + __u8 counter_info_version_out; + __u8 reserved[0xC]; + __u8 counter_value[]; +} __packed; + +/* + * counter info version => fw version/reference (spec version) + * + * 8 => power8 (1.07) + * [7 is skipped by spec 1.07] + * 6 => TLBIE (1.07) + * 5 => v7r7m0.phyp (1.05) + * [4 skipped] + * 3 => v7r6m0.phyp (?) + * [1,2 skipped] + * 0 => v7r{2,3,4}m0.phyp (?) + */ +#define COUNTER_INFO_VERSION_CURRENT 0x8 + +/* capability mask masks. */ +enum { + HV_GPCI_CM_GA = (1 << 7), + HV_GPCI_CM_EXPANDED = (1 << 6), + HV_GPCI_CM_LAB = (1 << 5) +}; + +#define REQUEST_FILE "../hv-gpci-requests.h" +#define NAME_LOWER hv_gpci +#define NAME_UPPER HV_GPCI +#include "req-gen/perf.h" +#undef REQUEST_FILE +#undef NAME_LOWER +#undef NAME_UPPER + +#endif |