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75f5f1fcb9
Introduce compressor object into mmap object so it could be used to pack the data stream from the corresponding kernel data buffer. Initialize and make use of the introduced per mmap compressor. Signed-off-by: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com> Tested-by: Jiri Olsa <jolsa@kernel.org> Acked-by: Andi Kleen <ak@linux.intel.com> Acked-by: Namhyung Kim <namhyung@gmail.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Antonov <alexander.antonov@linux.intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Alexei Budankov <abudankov@huawei.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Riccardo Mancini <rickyman7@gmail.com> Link: https://lore.kernel.org/r/80edc286cf6543139a7d5a91217605123aa0b50d.1642440724.git.alexey.v.bayduraev@linux.intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
74 lines
1.7 KiB
C
74 lines
1.7 KiB
C
#ifndef __PERF_MMAP_H
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#define __PERF_MMAP_H 1
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#include <internal/mmap.h>
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#include <linux/compiler.h>
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#include <linux/refcount.h>
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#include <linux/types.h>
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#include <linux/ring_buffer.h>
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#include <linux/bitops.h>
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#include <perf/cpumap.h>
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#include <stdbool.h>
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#include <pthread.h> // for cpu_set_t
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#ifdef HAVE_AIO_SUPPORT
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#include <aio.h>
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#endif
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#include "auxtrace.h"
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#include "event.h"
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#include "util/compress.h"
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struct aiocb;
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struct mmap_cpu_mask {
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unsigned long *bits;
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size_t nbits;
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};
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#define MMAP_CPU_MASK_BYTES(m) \
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(BITS_TO_LONGS(((struct mmap_cpu_mask *)m)->nbits) * sizeof(unsigned long))
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/**
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* struct mmap - perf's ring buffer mmap details
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*
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* @refcnt - e.g. code using PERF_EVENT_IOC_SET_OUTPUT to share this
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*/
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struct mmap {
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struct perf_mmap core;
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struct auxtrace_mmap auxtrace_mmap;
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#ifdef HAVE_AIO_SUPPORT
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struct {
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void **data;
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struct aiocb *cblocks;
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struct aiocb **aiocb;
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int nr_cblocks;
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} aio;
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#endif
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struct mmap_cpu_mask affinity_mask;
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void *data;
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int comp_level;
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struct perf_data_file *file;
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struct zstd_data zstd_data;
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};
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struct mmap_params {
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struct perf_mmap_param core;
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int nr_cblocks, affinity, flush, comp_level;
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struct auxtrace_mmap_params auxtrace_mp;
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};
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int mmap__mmap(struct mmap *map, struct mmap_params *mp, int fd, struct perf_cpu cpu);
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void mmap__munmap(struct mmap *map);
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union perf_event *perf_mmap__read_forward(struct mmap *map);
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int perf_mmap__push(struct mmap *md, void *to,
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int push(struct mmap *map, void *to, void *buf, size_t size));
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size_t mmap__mmap_len(struct mmap *map);
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void mmap_cpu_mask__scnprintf(struct mmap_cpu_mask *mask, const char *tag);
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int mmap_cpu_mask__duplicate(struct mmap_cpu_mask *original,
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struct mmap_cpu_mask *clone);
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#endif /*__PERF_MMAP_H */
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