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Merge branch 'for-2.6.23' of master.kernel.org:/pub/scm/linux/kernel/…
…git/arnd/cell-2.6 * 'for-2.6.23' of master.kernel.org:/pub/scm/linux/kernel/git/arnd/cell-2.6: (37 commits) [CELL] spufs: rework list management and associated locking [CELL] oprofile: add support to OProfile for profiling CELL BE SPUs [CELL] oprofile: enable SPU switch notification to detect currently active SPU tasks [CELL] spu_base: locking cleanup [CELL] cell: indexing of SPUs based on firmware vicinity properties [CELL] spufs: integration of SPE affinity with the scheduller [CELL] cell: add placement computation for scheduling of affinity contexts [CELL] spufs: extension of spu_create to support affinity definition [CELL] cell: add hardcoded spu vicinity information for QS20 [CELL] cell: add vicinity information on spus [CELL] cell: add per BE structure with info about its SPUs [CELL] spufs: use find_first_bit() instead of sched_find_first_bit() [CELL] spufs: remove unused file argument from spufs_run_spu() [CELL] spufs: change decrementer restore timing [CELL] spufs: dont halt decrementer at restore step 47 [CELL] spufs: limit saving MFC_CNTL bits [CELL] spufs: fix read and write for decr_status file [CELL] spufs: fix decr_status meanings [CELL] spufs: remove needless context save/restore code [CELL] spufs: fix array size of channel index ...
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/* | ||
* Cell Broadband Engine OProfile Support | ||
* | ||
* (C) Copyright IBM Corporation 2006 | ||
* | ||
* Author: Maynard Johnson <[email protected]> | ||
* | ||
* 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. | ||
*/ | ||
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#ifndef PR_UTIL_H | ||
#define PR_UTIL_H | ||
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#include <linux/cpumask.h> | ||
#include <linux/oprofile.h> | ||
#include <asm/cell-pmu.h> | ||
#include <asm/spu.h> | ||
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#include "../../platforms/cell/cbe_regs.h" | ||
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/* Defines used for sync_start */ | ||
#define SKIP_GENERIC_SYNC 0 | ||
#define SYNC_START_ERROR -1 | ||
#define DO_GENERIC_SYNC 1 | ||
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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; | ||
}; | ||
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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. | ||
*/ | ||
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}; | ||
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/* 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); | ||
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/* | ||
* 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); | ||
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void stop_spu_profiling(void); | ||
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/* add the necessary profiling hooks */ | ||
int spu_sync_start(void); | ||
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/* remove the hooks */ | ||
int spu_sync_stop(void); | ||
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/* Record SPU program counter samples to the oprofile event buffer. */ | ||
void spu_sync_buffer(int spu_num, unsigned int *samples, | ||
int num_samples); | ||
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void set_spu_profiling_frequency(unsigned int freq_khz, unsigned int cycles_reset); | ||
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#endif /* PR_UTIL_H */ |
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