eef686a009
The new Cell EDAC driver needs that file, oprofile also does ugly path tricks to get to it, it's time to move it to asm-powerpc. While at it, rename it to be consistent with cell-pmu.h (and dashes look nicer than underscores anyway). Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
97 lines
3.1 KiB
C
97 lines
3.1 KiB
C
/*
|
|
* Cell Broadband Engine OProfile Support
|
|
*
|
|
* (C) Copyright IBM Corporation 2006
|
|
*
|
|
* Author: Maynard Johnson <maynardj@us.ibm.com>
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
* as published by the Free Software Foundation; either version
|
|
* 2 of the License, or (at your option) any later version.
|
|
*/
|
|
|
|
#ifndef PR_UTIL_H
|
|
#define PR_UTIL_H
|
|
|
|
#include <linux/cpumask.h>
|
|
#include <linux/oprofile.h>
|
|
#include <asm/cell-pmu.h>
|
|
#include <asm/cell-regs.h>
|
|
#include <asm/spu.h>
|
|
|
|
/* Defines used for sync_start */
|
|
#define SKIP_GENERIC_SYNC 0
|
|
#define SYNC_START_ERROR -1
|
|
#define DO_GENERIC_SYNC 1
|
|
|
|
struct spu_overlay_info { /* map of sections within an SPU overlay */
|
|
unsigned int vma; /* SPU virtual memory address from elf */
|
|
unsigned int size; /* size of section from elf */
|
|
unsigned int offset; /* offset of section into elf file */
|
|
unsigned int buf;
|
|
};
|
|
|
|
struct vma_to_fileoffset_map { /* map of sections within an SPU program */
|
|
struct vma_to_fileoffset_map *next; /* list pointer */
|
|
unsigned int vma; /* SPU virtual memory address from elf */
|
|
unsigned int size; /* size of section from elf */
|
|
unsigned int offset; /* offset of section into elf file */
|
|
unsigned int guard_ptr;
|
|
unsigned int guard_val;
|
|
/*
|
|
* The guard pointer is an entry in the _ovly_buf_table,
|
|
* computed using ovly.buf as the index into the table. Since
|
|
* ovly.buf values begin at '1' to reference the first (or 0th)
|
|
* entry in the _ovly_buf_table, the computation subtracts 1
|
|
* from ovly.buf.
|
|
* The guard value is stored in the _ovly_buf_table entry and
|
|
* is an index (starting at 1) back to the _ovly_table entry
|
|
* that is pointing at this _ovly_buf_table entry. So, for
|
|
* example, for an overlay scenario with one overlay segment
|
|
* and two overlay sections:
|
|
* - Section 1 points to the first entry of the
|
|
* _ovly_buf_table, which contains a guard value
|
|
* of '1', referencing the first (index=0) entry of
|
|
* _ovly_table.
|
|
* - Section 2 points to the second entry of the
|
|
* _ovly_buf_table, which contains a guard value
|
|
* of '2', referencing the second (index=1) entry of
|
|
* _ovly_table.
|
|
*/
|
|
|
|
};
|
|
|
|
/* The three functions below are for maintaining and accessing
|
|
* the vma-to-fileoffset map.
|
|
*/
|
|
struct vma_to_fileoffset_map *create_vma_map(const struct spu *spu,
|
|
u64 objectid);
|
|
unsigned int vma_map_lookup(struct vma_to_fileoffset_map *map,
|
|
unsigned int vma, const struct spu *aSpu,
|
|
int *grd_val);
|
|
void vma_map_free(struct vma_to_fileoffset_map *map);
|
|
|
|
/*
|
|
* Entry point for SPU profiling.
|
|
* cycles_reset is the SPU_CYCLES count value specified by the user.
|
|
*/
|
|
int start_spu_profiling(unsigned int cycles_reset);
|
|
|
|
void stop_spu_profiling(void);
|
|
|
|
|
|
/* add the necessary profiling hooks */
|
|
int spu_sync_start(void);
|
|
|
|
/* remove the hooks */
|
|
int spu_sync_stop(void);
|
|
|
|
/* Record SPU program counter samples to the oprofile event buffer. */
|
|
void spu_sync_buffer(int spu_num, unsigned int *samples,
|
|
int num_samples);
|
|
|
|
void set_spu_profiling_frequency(unsigned int freq_khz, unsigned int cycles_reset);
|
|
|
|
#endif /* PR_UTIL_H */
|