26 	refcount_set(&map->refcnt, 0);  in perf_mmap__init()
39 	map->prev = 0;  in perf_mmap__mmap()
42 			 MAP_SHARED, fd, 0);  in perf_mmap__mmap()
50 	return 0;  in perf_mmap__mmap()
59 	map->event_copy_sz = 0;  in perf_mmap__munmap()
64 		refcount_set(&map->refcnt, 0);  in perf_mmap__munmap()
77 	BUG_ON(map->base && refcount_read(&map->refcnt) == 0);  in perf_mmap__put()
126 			return 0;  in overwrite_rb_find_range()
131 		if (pheader->size == 0) {  in overwrite_rb_find_range()
134 			return 0;  in overwrite_rb_find_range()
178 	return 0;  in __perf_mmap__read_init()
315 	asm volatile("mrs %0, " __stringify(r) : "=r" (__val));		\
329 PMEVCNTR_READ(0);
404 	return 0;  in read_perf_counter()
414 #define CSR_CYCLE	0xc00
415 #define CSR_TIME	0xc01
420 		__asm__ __volatile__ ("csrr %0, %1"		\
433 	switchcase_csr_read(__csr_num + 0, __val)        \  in csr_read_num()
436 	switchcase_csr_read_2(__csr_num + 0, __val)      \  in csr_read_num()
439 	switchcase_csr_read_4(__csr_num + 0, __val)      \  in csr_read_num()
442 	switchcase_csr_read_8(__csr_num + 0, __val)      \  in csr_read_num()
445 	switchcase_csr_read_16(__csr_num + 0, __val)     \  in csr_read_num()
448 	unsigned long ret = 0;  in csr_read_num()
476 static u64 read_perf_counter(unsigned int counter __maybe_unused) { return 0; }  in read_perf_counter()
477 static u64 read_timestamp(void) { return 0; }  in read_timestamp()
483 	u32 seq, idx, time_mult = 0, time_shift = 0;  in perf_mmap__read_self()
484 	u64 cnt, cyc = 0, time_offset = 0, time_cycles = 0, time_mask = ~0ULL;  in perf_mmap__read_self()
538 	return 0;  in perf_mmap__read_self()