Update Linux to v5.4.2
Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/tools/perf/util/mmap.h b/tools/perf/util/mmap.h
index 05a6d47..e567c1c 100644
--- a/tools/perf/util/mmap.h
+++ b/tools/perf/util/mmap.h
@@ -1,102 +1,73 @@
#ifndef __PERF_MMAP_H
#define __PERF_MMAP_H 1
+#include <internal/mmap.h>
#include <linux/compiler.h>
#include <linux/refcount.h>
#include <linux/types.h>
-#include <asm/barrier.h>
+#include <linux/ring_buffer.h>
#include <stdbool.h>
+#include <pthread.h> // for cpu_set_t
+#ifdef HAVE_AIO_SUPPORT
+#include <aio.h>
+#endif
#include "auxtrace.h"
#include "event.h"
+struct aiocb;
/**
- * struct perf_mmap - perf's ring buffer mmap details
+ * struct mmap - perf's ring buffer mmap details
*
* @refcnt - e.g. code using PERF_EVENT_IOC_SET_OUTPUT to share this
*/
-struct perf_mmap {
- void *base;
- int mask;
- int fd;
- int cpu;
- refcount_t refcnt;
- u64 prev;
- u64 start;
- u64 end;
- bool overwrite;
+struct mmap {
+ struct perf_mmap core;
struct auxtrace_mmap auxtrace_mmap;
- char event_copy[PERF_SAMPLE_MAX_SIZE] __aligned(8);
-};
-
-/*
- * State machine of bkw_mmap_state:
- *
- * .________________(forbid)_____________.
- * | V
- * NOTREADY --(0)--> RUNNING --(1)--> DATA_PENDING --(2)--> EMPTY
- * ^ ^ | ^ |
- * | |__(forbid)____/ |___(forbid)___/|
- * | |
- * \_________________(3)_______________/
- *
- * NOTREADY : Backward ring buffers are not ready
- * RUNNING : Backward ring buffers are recording
- * DATA_PENDING : We are required to collect data from backward ring buffers
- * EMPTY : We have collected data from backward ring buffers.
- *
- * (0): Setup backward ring buffer
- * (1): Pause ring buffers for reading
- * (2): Read from ring buffers
- * (3): Resume ring buffers for recording
- */
-enum bkw_mmap_state {
- BKW_MMAP_NOTREADY,
- BKW_MMAP_RUNNING,
- BKW_MMAP_DATA_PENDING,
- BKW_MMAP_EMPTY,
+#ifdef HAVE_AIO_SUPPORT
+ struct {
+ void **data;
+ struct aiocb *cblocks;
+ struct aiocb **aiocb;
+ int nr_cblocks;
+ } aio;
+#endif
+ cpu_set_t affinity_mask;
+ void *data;
+ int comp_level;
};
struct mmap_params {
- int prot, mask;
+ int prot, mask, nr_cblocks, affinity, flush, comp_level;
struct auxtrace_mmap_params auxtrace_mp;
};
-int perf_mmap__mmap(struct perf_mmap *map, struct mmap_params *mp, int fd, int cpu);
-void perf_mmap__munmap(struct perf_mmap *map);
+int perf_mmap__mmap(struct mmap *map, struct mmap_params *mp, int fd, int cpu);
+void perf_mmap__munmap(struct mmap *map);
-void perf_mmap__get(struct perf_mmap *map);
-void perf_mmap__put(struct perf_mmap *map);
+void perf_mmap__get(struct mmap *map);
+void perf_mmap__put(struct mmap *map);
-void perf_mmap__consume(struct perf_mmap *map);
+void perf_mmap__consume(struct mmap *map);
-static inline u64 perf_mmap__read_head(struct perf_mmap *mm)
+static inline u64 perf_mmap__read_head(struct mmap *mm)
{
- struct perf_event_mmap_page *pc = mm->base;
- u64 head = READ_ONCE(pc->data_head);
- rmb();
- return head;
+ return ring_buffer_read_head(mm->core.base);
}
-static inline void perf_mmap__write_tail(struct perf_mmap *md, u64 tail)
+static inline void perf_mmap__write_tail(struct mmap *md, u64 tail)
{
- struct perf_event_mmap_page *pc = md->base;
-
- /*
- * ensure all reads are done before we write the tail out.
- */
- mb();
- pc->data_tail = tail;
+ ring_buffer_write_tail(md->core.base, tail);
}
-union perf_event *perf_mmap__read_forward(struct perf_mmap *map);
+union perf_event *perf_mmap__read_forward(struct mmap *map);
-union perf_event *perf_mmap__read_event(struct perf_mmap *map);
+union perf_event *perf_mmap__read_event(struct mmap *map);
-int perf_mmap__push(struct perf_mmap *md, void *to,
- int push(void *to, void *buf, size_t size));
+int perf_mmap__push(struct mmap *md, void *to,
+ int push(struct mmap *map, void *to, void *buf, size_t size));
-size_t perf_mmap__mmap_len(struct perf_mmap *map);
+size_t perf_mmap__mmap_len(struct mmap *map);
-int perf_mmap__read_init(struct perf_mmap *md);
-void perf_mmap__read_done(struct perf_mmap *map);
+int perf_mmap__read_init(struct mmap *md);
+void perf_mmap__read_done(struct mmap *map);
#endif /*__PERF_MMAP_H */