1*4882a593Smuzhiyun #ifndef __PERF_MMAP_H 2*4882a593Smuzhiyun #define __PERF_MMAP_H 1 3*4882a593Smuzhiyun 4*4882a593Smuzhiyun #include <internal/mmap.h> 5*4882a593Smuzhiyun #include <linux/compiler.h> 6*4882a593Smuzhiyun #include <linux/refcount.h> 7*4882a593Smuzhiyun #include <linux/types.h> 8*4882a593Smuzhiyun #include <linux/ring_buffer.h> 9*4882a593Smuzhiyun #include <stdbool.h> 10*4882a593Smuzhiyun #include <pthread.h> // for cpu_set_t 11*4882a593Smuzhiyun #ifdef HAVE_AIO_SUPPORT 12*4882a593Smuzhiyun #include <aio.h> 13*4882a593Smuzhiyun #endif 14*4882a593Smuzhiyun #include "auxtrace.h" 15*4882a593Smuzhiyun #include "event.h" 16*4882a593Smuzhiyun 17*4882a593Smuzhiyun struct aiocb; 18*4882a593Smuzhiyun 19*4882a593Smuzhiyun struct mmap_cpu_mask { 20*4882a593Smuzhiyun unsigned long *bits; 21*4882a593Smuzhiyun size_t nbits; 22*4882a593Smuzhiyun }; 23*4882a593Smuzhiyun 24*4882a593Smuzhiyun #define MMAP_CPU_MASK_BYTES(m) \ 25*4882a593Smuzhiyun (BITS_TO_LONGS(((struct mmap_cpu_mask *)m)->nbits) * sizeof(unsigned long)) 26*4882a593Smuzhiyun 27*4882a593Smuzhiyun /** 28*4882a593Smuzhiyun * struct mmap - perf's ring buffer mmap details 29*4882a593Smuzhiyun * 30*4882a593Smuzhiyun * @refcnt - e.g. code using PERF_EVENT_IOC_SET_OUTPUT to share this 31*4882a593Smuzhiyun */ 32*4882a593Smuzhiyun struct mmap { 33*4882a593Smuzhiyun struct perf_mmap core; 34*4882a593Smuzhiyun struct auxtrace_mmap auxtrace_mmap; 35*4882a593Smuzhiyun #ifdef HAVE_AIO_SUPPORT 36*4882a593Smuzhiyun struct { 37*4882a593Smuzhiyun void **data; 38*4882a593Smuzhiyun struct aiocb *cblocks; 39*4882a593Smuzhiyun struct aiocb **aiocb; 40*4882a593Smuzhiyun int nr_cblocks; 41*4882a593Smuzhiyun } aio; 42*4882a593Smuzhiyun #endif 43*4882a593Smuzhiyun struct mmap_cpu_mask affinity_mask; 44*4882a593Smuzhiyun void *data; 45*4882a593Smuzhiyun int comp_level; 46*4882a593Smuzhiyun }; 47*4882a593Smuzhiyun 48*4882a593Smuzhiyun struct mmap_params { 49*4882a593Smuzhiyun struct perf_mmap_param core; 50*4882a593Smuzhiyun int nr_cblocks, affinity, flush, comp_level; 51*4882a593Smuzhiyun struct auxtrace_mmap_params auxtrace_mp; 52*4882a593Smuzhiyun }; 53*4882a593Smuzhiyun 54*4882a593Smuzhiyun int mmap__mmap(struct mmap *map, struct mmap_params *mp, int fd, int cpu); 55*4882a593Smuzhiyun void mmap__munmap(struct mmap *map); 56*4882a593Smuzhiyun 57*4882a593Smuzhiyun union perf_event *perf_mmap__read_forward(struct mmap *map); 58*4882a593Smuzhiyun 59*4882a593Smuzhiyun int perf_mmap__push(struct mmap *md, void *to, 60*4882a593Smuzhiyun int push(struct mmap *map, void *to, void *buf, size_t size)); 61*4882a593Smuzhiyun 62*4882a593Smuzhiyun size_t mmap__mmap_len(struct mmap *map); 63*4882a593Smuzhiyun 64*4882a593Smuzhiyun void mmap_cpu_mask__scnprintf(struct mmap_cpu_mask *mask, const char *tag); 65*4882a593Smuzhiyun 66*4882a593Smuzhiyun #endif /*__PERF_MMAP_H */ 67