[PATCH 4/4] SPU add pread, pwrite, readv and writev
Jeff Johnston
jjohnstn@redhat.com
Mon Sep 24 09:12:00 GMT 2007
Patch checked in.
-- Jeff J.
Patrick Mansfield wrote:
> Add SPU pread, pwrite, readv and writev support via assist calls.
>
> newlib ChangeLog:
>
> 2007-09-20 Patrick Mansfield <patmans@us.ibm.com>
>
> * libc/machine/spu/sys/uio.h: New file for readv and writev use.
>
> libgloss ChangeLog:
>
> 2007-09-20 Patrick Mansfield <patmans@us.ibm.com>
>
> * spu/Makefile.in: Add new files.
> * spu/jsre.h: Add JSRE_PREAD, JSRE_PWRITE, JSRE_READV, and
> JSRE_WRITEV opcodes.
> * spu/pread.c: New file to add pread via assist call.
> * spu/pwrite.c: New file to add pwrite via assist call.
> * spu/readv.c: New file to add readv via assist call.
> * spu/writev.c: New file to add writev via assist call.
>
> Index: src/libgloss/spu/jsre.h
> ===================================================================
> --- src.orig/libgloss/spu/jsre.h
> +++ src/libgloss/spu/jsre.h
> @@ -90,6 +90,10 @@ Author: Andreas Neukoetter (ti95neuk@de.
> #define JSRE_UMASK 62
> #define JSRE_UTIME 63
> #define JSRE_UTIMES 64
> +#define JSRE_PREAD 65
> +#define JSRE_PWRITE 66
> +#define JSRE_READV 67
> +#define JSRE_WRITEV 68
>
> struct jsre_stat {
> unsigned int dev;
> Index: src/libgloss/spu/pread.c
> ===================================================================
> --- /dev/null
> +++ src/libgloss/spu/pread.c
> @@ -0,0 +1,58 @@
> +/*
> + Copyright 2007
> + International Business Machines Corporation,
> + Sony Computer Entertainment, Incorporated,
> + Toshiba Corporation,
> +
> + All rights reserved.
> +
> + Redistribution and use in source and binary forms, with or without
> + modification, are permitted provided that the following conditions are met:
> +
> + * Redistributions of source code must retain the above copyright notice,
> + this list of conditions and the following disclaimer.
> + * Redistributions in binary form must reproduce the above copyright
> + notice, this list of conditions and the following disclaimer in the
> + documentation and/or other materials provided with the distribution.
> + * Neither the names of the copyright holders nor the names of their
> + contributors may be used to endorse or promote products derived from
> + this software without specific prior written permission.
> +
> + THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
> + IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
> + TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
> + PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
> + OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
> + EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
> + PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
> + PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
> + LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
> + NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
> + SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
> +*/
> +
> +#include <unistd.h>
> +#include "jsre.h"
> +
> +typedef struct
> +{
> + unsigned int fd;
> + unsigned int pad0[3];
> + unsigned int buf;
> + unsigned int pad1[3];
> + unsigned int count;
> + unsigned int pad2[3];
> + unsigned int offset;
> + unsigned int pad3[3];
> +} syscall_pread_t;
> +
> +ssize_t pread(int fd, void *buf, size_t count, off_t offset)
> +{
> + syscall_pread_t sys;
> +
> + sys.fd = (unsigned int) fd;
> + sys.buf = (unsigned int) buf;
> + sys.count = (unsigned int) count;
> + sys.offset = (unsigned int) offset;
> + return __send_to_ppe (JSRE_POSIX1_SIGNALCODE, JSRE_PREAD, &sys);
> +}
> Index: src/libgloss/spu/Makefile.in
> ===================================================================
> --- src.orig/libgloss/spu/Makefile.in
> +++ src/libgloss/spu/Makefile.in
> @@ -60,9 +60,10 @@ OBJS = \
> fsync.o ftruncate.o getcwd.o getpagesize.o getpid.o \
> gettimeofday.o isatty.o kill.o lchown.o link.o lockf.o lseek.o \
> lstat.o mkdir.o mknod.o mkstemp.o mktemp.o nanosleep.o open.o \
> - read.o readlink.o rmdir.o sbrk.o sched_yield.o shm_open.o \
> - shm_unlink.o stat.o symlink.o sync.o syscalls.o truncate.o umask.o \
> - unlink.o utime.o utimes.o write.o
> + pread.o pwrite.o read.o readlink.o readv.o rmdir.o sbrk.o \
> + sched_yield.o shm_open.o shm_unlink.o stat.o symlink.o sync.o \
> + syscalls.o truncate.o umask.o unlink.o utime.o utimes.o write.o \
> + writev.o
>
> # Object files specific to particular targets.
> EVALOBJS = ${OBJS}
> Index: src/libgloss/spu/pwrite.c
> ===================================================================
> --- /dev/null
> +++ src/libgloss/spu/pwrite.c
> @@ -0,0 +1,58 @@
> +/*
> + Copyright 2007
> + International Business Machines Corporation,
> + Sony Computer Entertainment, Incorporated,
> + Toshiba Corporation,
> +
> + All rights reserved.
> +
> + Redistribution and use in source and binary forms, with or without
> + modification, are permitted provided that the following conditions are met:
> +
> + * Redistributions of source code must retain the above copyright notice,
> + this list of conditions and the following disclaimer.
> + * Redistributions in binary form must reproduce the above copyright
> + notice, this list of conditions and the following disclaimer in the
> + documentation and/or other materials provided with the distribution.
> + * Neither the names of the copyright holders nor the names of their
> + contributors may be used to endorse or promote products derived from
> + this software without specific prior written permission.
> +
> + THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
> + IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
> + TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
> + PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
> + OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
> + EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
> + PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
> + PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
> + LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
> + NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
> + SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
> +*/
> +
> +#include <unistd.h>
> +#include "jsre.h"
> +
> +typedef struct
> +{
> + unsigned int fd;
> + unsigned int pad0[3];
> + unsigned int buf;
> + unsigned int pad1[3];
> + unsigned int count;
> + unsigned int pad2[3];
> + unsigned int offset;
> + unsigned int pad3[3];
> +} syscall_pwrite_t;
> +
> +ssize_t pwrite(int fd, const void *buf, size_t count, off_t offset)
> +{
> + syscall_pwrite_t sys;
> +
> + sys.fd = (unsigned int) fd;
> + sys.buf = (unsigned int) buf;
> + sys.count = (unsigned int) count;
> + sys.offset = (unsigned int) offset;
> + return __send_to_ppe (JSRE_POSIX1_SIGNALCODE, JSRE_PWRITE, &sys);
> +}
> Index: src/libgloss/spu/readv.c
> ===================================================================
> --- /dev/null
> +++ src/libgloss/spu/readv.c
> @@ -0,0 +1,55 @@
> +/*
> + Copyright 2007
> + International Business Machines Corporation,
> + Sony Computer Entertainment, Incorporated,
> + Toshiba Corporation,
> +
> + All rights reserved.
> +
> + Redistribution and use in source and binary forms, with or without
> + modification, are permitted provided that the following conditions are met:
> +
> + * Redistributions of source code must retain the above copyright notice,
> + this list of conditions and the following disclaimer.
> + * Redistributions in binary form must reproduce the above copyright
> + notice, this list of conditions and the following disclaimer in the
> + documentation and/or other materials provided with the distribution.
> + * Neither the names of the copyright holders nor the names of their
> + contributors may be used to endorse or promote products derived from
> + this software without specific prior written permission.
> +
> + THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
> + IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
> + TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
> + PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
> + OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
> + EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
> + PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
> + PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
> + LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
> + NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
> + SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
> +*/
> +
> +#include <sys/uio.h>
> +#include "jsre.h"
> +
> +typedef struct
> +{
> + unsigned int fd;
> + unsigned int pad0[3];
> + unsigned int vec;
> + unsigned int pad1[3];
> + unsigned int count;
> + unsigned int pad2[3];
> +} syscall_readv_t;
> +
> +ssize_t readv(int fd, const struct iovec *vec, int count)
> +{
> + syscall_readv_t sys;
> +
> + sys.fd = (unsigned int) fd;
> + sys.vec = (unsigned int) vec;
> + sys.count = (unsigned int) count;
> + return __send_to_ppe (JSRE_POSIX1_SIGNALCODE, JSRE_READV, &sys);
> +}
> Index: src/libgloss/spu/writev.c
> ===================================================================
> --- /dev/null
> +++ src/libgloss/spu/writev.c
> @@ -0,0 +1,55 @@
> +/*
> + Copyright 2007
> + International Business Machines Corporation,
> + Sony Computer Entertainment, Incorporated,
> + Toshiba Corporation,
> +
> + All rights reserved.
> +
> + Redistribution and use in source and binary forms, with or without
> + modification, are permitted provided that the following conditions are met:
> +
> + * Redistributions of source code must retain the above copyright notice,
> + this list of conditions and the following disclaimer.
> + * Redistributions in binary form must reproduce the above copyright
> + notice, this list of conditions and the following disclaimer in the
> + documentation and/or other materials provided with the distribution.
> + * Neither the names of the copyright holders nor the names of their
> + contributors may be used to endorse or promote products derived from
> + this software without specific prior written permission.
> +
> + THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
> + IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
> + TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
> + PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
> + OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
> + EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
> + PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
> + PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
> + LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
> + NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
> + SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
> +*/
> +
> +#include <sys/uio.h>
> +#include "jsre.h"
> +
> +typedef struct
> +{
> + unsigned int fd;
> + unsigned int pad0[3];
> + unsigned int vec;
> + unsigned int pad1[3];
> + unsigned int count;
> + unsigned int pad2[3];
> +} syscall_writev_t;
> +
> +ssize_t writev(int fd, const struct iovec *vec, int count)
> +{
> + syscall_writev_t sys;
> +
> + sys.fd = (unsigned int) fd;
> + sys.vec = (unsigned int) vec;
> + sys.count = (unsigned int) count;
> + return __send_to_ppe (JSRE_POSIX1_SIGNALCODE, JSRE_WRITEV, &sys);
> +}
> Index: src/newlib/libc/machine/spu/sys/uio.h
> ===================================================================
> --- /dev/null
> +++ src/newlib/libc/machine/spu/sys/uio.h
> @@ -0,0 +1,26 @@
> +#ifndef _SYS_UIO_H
> +#define _SYS_UIO_H
> +
> +#include <sys/types.h>
> +
> +#ifdef __cplusplus
> +extern "C" {
> +#endif
> +
> +/*
> + * Per POSIX
> + */
> +
> +struct iovec {
> + void *iov_base;
> + size_t iov_len;
> +};
> +
> +ssize_t readv(int, const struct iovec *, int);
> +ssize_t writev(int, const struct iovec *, int);
> +
> +#ifdef __cplusplus
> +};
> +#endif
> +
> +#endif
>
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