runtime/ctrump-libspe2.c File Reference

Linux libspe2 のPPEランタイム. More...

#include "ctrump-libspe2.h"
#include <stdint.h>
#include <unistd.h>
#include <string.h>
#include <fcntl.h>

Include dependency graph for ctrump-libspe2.c:

Go to the source code of this file.

Defines

#define _ATFILE_SOURCE

Enumerations

enum { COMMAND_NONE, COMMAND_RUN, COMMAND_QUIT }

Functions

static void * spe_thread (void *spe_ptr)

void __spe_context_update_event (void)

void ctrump_runtime_spe_program_load (spe_context_ptr_t spe, const spe_program_handle_t *prog)

SPEへプログラムロード.

void ctrump_runtime_spe_start (spe_context_ptr_t spe, void *param)

SPE開始.

void ctrump_runtime_spe_wait (spe_context_ptr_t spe)

SPE完了待ち.

void ctrump_runtime_append_spe (spe_context_ptr_t spe, int enable_debugger)

CTRUMPで使うSPEを追加する.

void ctrump_runtime_remove_spe (spe_context_ptr_t spe)

CTRUMPで使っていたSPEを終了する.

void ctrump_runtime_initialize (int num_spe)

初期化

void ctrump_runtime_finalize (void)

終了処理

Variables

struct ctrump_runtime_spe_context ctrump_runtime_spes [16]

spe_program_handle_t ctrump_libspe2_boot

int ctrump_spe_num = 0

Detailed Description

Linux libspe2 のPPEランタイム.

SPE起動時間短縮のため、context_runは利用しないで、以下のようにしてSPEプログラムを起動する

1 ctrump_runtime_append_spe が呼ばれると、対象SPE contextに ELF ロードプログラム(spe/ctrump-libspe2-boot.c)を置く

2 PPEはSPEをstartする

3 SPEはPPEから実行要求がくるまでmbox readで待機

4 PPEはSPEにELFイメージの先頭アドレスをmboxで送る

5 SPE側のSPEローダは届いたELFイメージをロードして実行

6 SPE側はロードが完了するとそのプログラムを実行

7 SPE側プログラムは実行完了すると、PPEへintr mboxを使って完了通知

8 SPE側は通知が完了すると、再びELFロードプログラムを実行 -> 3へ

Definition in file ctrump-libspe2.c.

Define Documentation

#define _ATFILE_SOURCE

Definition at line 58 of file ctrump-libspe2.c.

Enumeration Type Documentation

anonymous enum

Enumerator:

COMMAND_NONE
COMMAND_RUN
COMMAND_QUIT

Definition at line 66 of file ctrump-libspe2.c.

Function Documentation

void __spe_context_update_event ( void )

Referenced by ctrump_runtime_spe_program_load().

void ctrump_runtime_append_spe	(	spe_context_ptr_t	spe,
		int	enable_debugger
	)

CTRUMPで使うSPEを追加する.

Parameters:

	spe	SPE
	enable_debugger	ppu-gdbを使う場合は1

Definition at line 144 of file ctrump-libspe2.c.

References ctrump_runtime_spes, ctrump_spe_num, ctrump_runtime_spe_context::dir_fd, ctrump_runtime_spe_context::enable_debugger, ctrump_runtime_spe_context::spe_context, spe_thread(), and ctrump_runtime_spe_context::thread.

Referenced by ctrump_runtime_initialize().

void ctrump_runtime_finalize ( void )

終了処理

Definition at line 203 of file ctrump-libspe2.c.

References ctrump_runtime_remove_spe(), ctrump_runtime_spes, ctrump_spe_num, and ctrump_runtime_spe_context::spe_context.

void ctrump_runtime_initialize ( int num_spe )

初期化

Parameters:

num_spe

使うSPEの数

Definition at line 194 of file ctrump-libspe2.c.

References ctrump_runtime_append_spe().

void ctrump_runtime_remove_spe ( spe_context_ptr_t spe )

CTRUMPで使っていたSPEを終了する.

Parameters:

spe

SPE

Definition at line 167 of file ctrump-libspe2.c.

References ctrump_runtime_spes, ctrump_spe_num, ctrump_runtime_spe_context::dir_fd, ctrump_runtime_spe_context::spe_context, and ctrump_runtime_spe_context::thread.

Referenced by ctrump_runtime_finalize().

void ctrump_runtime_spe_program_load	(	spe_context_ptr_t	spe,
		const spe_program_handle_t *	prog
	)

SPEへプログラムロード.

Parameters:

	spe	SPE
	prog	プログラム

Definition at line 92 of file ctrump-libspe2.c.

References __spe_context_update_event(), ctrump_runtime_spes, ctrump_spe_num, ctrump_runtime_spe_context::dir_fd, ctrump_runtime_spe_context::enable_debugger, and ctrump_runtime_spe_context::spe_context.

void ctrump_runtime_spe_start	(	spe_context_ptr_t	spe,
		void *	param
	)

SPE開始.

Parameters:

	spe	spe context
	param	SPEに渡すパラメータ

Definition at line 127 of file ctrump-libspe2.c.

void ctrump_runtime_spe_wait ( spe_context_ptr_t spe )

SPE完了待ち.

Parameters:

spe

SPE

Definition at line 137 of file ctrump-libspe2.c.

static void* spe_thread ( void * spe_ptr ) [static]

Definition at line 77 of file ctrump-libspe2.c.

References ctrump_libspe2_boot.

Referenced by ctrump_runtime_append_spe().

Variable Documentation

spe_program_handle_t ctrump_libspe2_boot

Referenced by spe_thread().

struct ctrump_runtime_spe_context ctrump_runtime_spes[16]

Definition at line 72 of file ctrump-libspe2.c.

Referenced by ctrump_runtime_append_spe(), ctrump_runtime_finalize(), ctrump_runtime_remove_spe(), and ctrump_runtime_spe_program_load().

int ctrump_spe_num = 0

Definition at line 74 of file ctrump-libspe2.c.

Referenced by ctrump_runtime_append_spe(), ctrump_runtime_finalize(), ctrump_runtime_remove_spe(), and ctrump_runtime_spe_program_load().


Defines
#define	_ATFILE_SOURCE
Enumerations
enum	{ COMMAND_NONE, COMMAND_RUN, COMMAND_QUIT }
Functions
static void *	spe_thread (void *spe_ptr)
void	__spe_context_update_event (void)
void	ctrump_runtime_spe_program_load (spe_context_ptr_t spe, const spe_program_handle_t *prog)
	SPEへプログラムロード.
void	ctrump_runtime_spe_start (spe_context_ptr_t spe, void *param)
	SPE開始.
void	ctrump_runtime_spe_wait (spe_context_ptr_t spe)
	SPE完了待ち.
void	ctrump_runtime_append_spe (spe_context_ptr_t spe, int enable_debugger)
	CTRUMPで使うSPEを追加する.
void	ctrump_runtime_remove_spe (spe_context_ptr_t spe)
	CTRUMPで使っていたSPEを終了する.
void	ctrump_runtime_initialize (int num_spe)
	初期化
void	ctrump_runtime_finalize (void)
	終了処理
Variables
struct ctrump_runtime_spe_context	ctrump_runtime_spes [16]
spe_program_handle_t	ctrump_libspe2_boot
int	ctrump_spe_num = 0