63ffa3e456
Signed-off-by: Pekka Paalanen <pq@iki.fi> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
66 lines
1.6 KiB
C
66 lines
1.6 KiB
C
#ifndef MMIOTRACE_H
|
|
#define MMIOTRACE_H
|
|
|
|
#include <asm/types.h>
|
|
|
|
/*
|
|
* If you change anything here, you must bump MMIO_VERSION.
|
|
* This is the relay data format for user space.
|
|
*/
|
|
#define MMIO_VERSION 0x04
|
|
|
|
/* mm_io_header.type */
|
|
#define MMIO_OPCODE_MASK 0xff
|
|
#define MMIO_OPCODE_SHIFT 0
|
|
#define MMIO_WIDTH_MASK 0xff00
|
|
#define MMIO_WIDTH_SHIFT 8
|
|
#define MMIO_MAGIC (0x6f000000 | (MMIO_VERSION<<16))
|
|
#define MMIO_MAGIC_MASK 0xffff0000
|
|
|
|
enum mm_io_opcode { /* payload type: */
|
|
MMIO_READ = 0x1, /* struct mm_io_rw */
|
|
MMIO_WRITE = 0x2, /* struct mm_io_rw */
|
|
MMIO_PROBE = 0x3, /* struct mm_io_map */
|
|
MMIO_UNPROBE = 0x4, /* struct mm_io_map */
|
|
MMIO_MARKER = 0x5, /* raw char data */
|
|
MMIO_UNKNOWN_OP = 0x6, /* struct mm_io_rw */
|
|
};
|
|
|
|
struct mm_io_header {
|
|
__u32 type; /* see MMIO_* macros above */
|
|
__u32 sec; /* timestamp */
|
|
__u32 nsec;
|
|
__u32 pid; /* PID of the process, or 0 for kernel core */
|
|
__u16 data_len; /* length of the following payload */
|
|
};
|
|
|
|
struct mm_io_rw {
|
|
__u64 address; /* virtual address of register */
|
|
__u64 value;
|
|
__u64 pc; /* optional program counter */
|
|
};
|
|
|
|
struct mm_io_map {
|
|
__u64 phys; /* base address in PCI space */
|
|
__u64 addr; /* base virtual address */
|
|
__u64 len; /* mapping size */
|
|
__u64 pc; /* optional program counter */
|
|
};
|
|
|
|
|
|
/*
|
|
* These structures are used to allow a single relay_write()
|
|
* call to write a full packet.
|
|
*/
|
|
|
|
struct mm_io_header_rw {
|
|
struct mm_io_header header;
|
|
struct mm_io_rw rw;
|
|
} __attribute__((packed));
|
|
|
|
struct mm_io_header_map {
|
|
struct mm_io_header header;
|
|
struct mm_io_map map;
|
|
} __attribute__((packed));
|
|
|
|
#endif /* MMIOTRACE_H */
|