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[XTENSA] Move string-io functions to io.c from pci.c

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The string-io functions (outs{bwl}, ins{bwl}) are independent from
the PCI option and should be in a separate file.

Signed-off-by: Chris Zankel <chris@zankel.net>
This commit is contained in:
Chris Zankel 2007-08-04 14:31:04 -07:00
parent 73089cbfdf
commit 787a22d1d2
3 changed files with 76 additions and 70 deletions
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2
arch/xtensa/kernel/Makefile
View File

@ -7,7 +7,7 @@ extra-y := head.o vmlinux.lds
obj-y := align.o entry.o irq.o coprocessor.o process.o ptrace.o semaphore.o \
setup.o signal.o syscall.o time.o traps.o vectors.o platform.o \
pci-dma.o init_task.o
pci-dma.o init_task.o io.o
## windowspill.o

75
arch/xtensa/kernel/io.c Normal file
View File

@ -0,0 +1,75 @@
/*
* arch/xtensa/io.c
*
* IO primitives
*
* 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.
*
* Copied from sparc.
*
* Chris Zankel <chris@zankel.net>
*
*/
#include <asm/io.h>
#include <asm/byteorder.h>
void outsb(unsigned long addr, const void *src, unsigned long count) {
while (count) {
count -= 1;
writeb(*(const char *)src, addr);
src += 1;
addr += 1;
}
}
void outsw(unsigned long addr, const void *src, unsigned long count) {
while (count) {
count -= 2;
writew(*(const short *)src, addr);
src += 2;
addr += 2;
}
}
void outsl(unsigned long addr, const void *src, unsigned long count) {
while (count) {
count -= 4;
writel(*(const long *)src, addr);
src += 4;
addr += 4;
}
}
void insb(unsigned long addr, void *dst, unsigned long count) {
while (count) {
count -= 1;
*(unsigned char *)dst = readb(addr);
dst += 1;
addr += 1;
}
}
void insw(unsigned long addr, void *dst, unsigned long count) {
while (count) {
count -= 2;
*(unsigned short *)dst = readw(addr);
dst += 2;
addr += 2;
}
}
void insl(unsigned long addr, void *dst, unsigned long count) {
while (count) {
count -= 4;
/*
* XXX I am sure we are in for an unaligned trap here.
*/
*(unsigned long *)dst = readl(addr);
dst += 4;
addr += 4;
}
}

69
arch/xtensa/kernel/pci.c
View File

@ -394,72 +394,3 @@ int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
return ret;
}
/*
* This probably belongs here rather than ioport.c because
* we do not want this crud linked into SBus kernels.
* Also, think for a moment about likes of floppy.c that
* include architecture specific parts. They may want to redefine ins/outs.
*
* We do not use horrible macros here because we want to
* advance pointer by sizeof(size).
*/
void outsb(unsigned long addr, const void *src, unsigned long count) {
while (count) {
count -= 1;
writeb(*(const char *)src, addr);
src += 1;
addr += 1;
}
}
void outsw(unsigned long addr, const void *src, unsigned long count) {
while (count) {
count -= 2;
writew(*(const short *)src, addr);
src += 2;
addr += 2;
}
}
void outsl(unsigned long addr, const void *src, unsigned long count) {
while (count) {
count -= 4;
writel(*(const long *)src, addr);
src += 4;
addr += 4;
}
}
void insb(unsigned long addr, void *dst, unsigned long count) {
while (count) {
count -= 1;
*(unsigned char *)dst = readb(addr);
dst += 1;
addr += 1;
}
}
void insw(unsigned long addr, void *dst, unsigned long count) {
while (count) {
count -= 2;
*(unsigned short *)dst = readw(addr);
dst += 2;
addr += 2;
}
}
void insl(unsigned long addr, void *dst, unsigned long count) {
while (count) {
count -= 4;
/*
* XXX I am sure we are in for an unaligned trap here.
*/
*(unsigned long *)dst = readl(addr);
dst += 4;
addr += 4;
}
}