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Diffstat (limited to 'xorg-server/hw/xfree86/os-support/misc')
-rw-r--r--xorg-server/hw/xfree86/os-support/misc/SlowBcopy.c87
1 files changed, 43 insertions, 44 deletions
diff --git a/xorg-server/hw/xfree86/os-support/misc/SlowBcopy.c b/xorg-server/hw/xfree86/os-support/misc/SlowBcopy.c
index 0021b5544..254748ff6 100644
--- a/xorg-server/hw/xfree86/os-support/misc/SlowBcopy.c
+++ b/xorg-server/hw/xfree86/os-support/misc/SlowBcopy.c
@@ -1,7 +1,7 @@
/*******************************************************************************
for Alpha Linux
*******************************************************************************/
-
+
/*
* Create a dependency that should be immune from the effect of register
* renaming as is commonly seen in superscalar processors. This should
@@ -10,7 +10,7 @@
*
* Slowbcopy(char *src, char *dst, int count)
*
- */
+ */
#ifdef HAVE_XORG_CONFIG_H
#include <xorg-config.h>
@@ -27,16 +27,16 @@ static int really_slow_bcopy;
void
xf86SetReallySlowBcopy(void)
{
- really_slow_bcopy = 1;
+ really_slow_bcopy = 1;
}
#if defined(__i386__) || defined(__amd64__)
-static void xf86_really_slow_bcopy(unsigned char *src, unsigned char *dst, int len)
+static void
+xf86_really_slow_bcopy(unsigned char *src, unsigned char *dst, int len)
{
- while(len--)
- {
- *dst++ = *src++;
- outb(0x80, 0x00);
+ while (len--) {
+ *dst++ = *src++;
+ outb(0x80, 0x00);
}
}
#endif
@@ -47,12 +47,12 @@ xf86SlowBcopy(unsigned char *src, unsigned char *dst, int len)
{
#if defined(__i386__) || defined(__amd64__)
if (really_slow_bcopy) {
- xf86_really_slow_bcopy(src, dst, len);
- return;
+ xf86_really_slow_bcopy(src, dst, len);
+ return;
}
#endif
- while(len--)
- *dst++ = *src++;
+ while (len--)
+ *dst++ = *src++;
}
#ifdef __alpha__
@@ -76,42 +76,41 @@ unsigned long _bus_base(void);
void
xf86SlowBCopyFromBus(unsigned char *src, unsigned char *dst, int count)
{
- if (useSparse())
- {
- unsigned long addr;
- long result;
-
- addr = (unsigned long) src;
- while (count) {
- result = *(volatile int *) addr;
- result >>= ((addr>>SPARSE) & 3) * 8;
- *dst++ = (unsigned char) (0xffUL & result);
- addr += 1<<SPARSE;
- count--;
- outb(0x80, 0x00);
- }
- }
- else
- xf86SlowBcopy(src, dst, count);
+ if (useSparse()) {
+ unsigned long addr;
+ long result;
+
+ addr = (unsigned long) src;
+ while (count) {
+ result = *(volatile int *) addr;
+ result >>= ((addr >> SPARSE) & 3) * 8;
+ *dst++ = (unsigned char) (0xffUL & result);
+ addr += 1 << SPARSE;
+ count--;
+ outb(0x80, 0x00);
+ }
+ }
+ else
+ xf86SlowBcopy(src, dst, count);
}
void
xf86SlowBCopyToBus(unsigned char *src, unsigned char *dst, int count)
{
- if (useSparse())
- {
- unsigned long addr;
-
- addr = (unsigned long) dst;
- while (count) {
- *(volatile unsigned int *) addr = (unsigned short)(*src) * 0x01010101;
- src++;
- addr += 1<<SPARSE;
- count--;
- outb(0x80, 0x00);
- }
- }
- else
- xf86SlowBcopy(src, dst, count);
+ if (useSparse()) {
+ unsigned long addr;
+
+ addr = (unsigned long) dst;
+ while (count) {
+ *(volatile unsigned int *) addr =
+ (unsigned short) (*src) * 0x01010101;
+ src++;
+ addr += 1 << SPARSE;
+ count--;
+ outb(0x80, 0x00);
+ }
+ }
+ else
+ xf86SlowBcopy(src, dst, count);
}
#endif