diff options
Diffstat (limited to 'xorg-server/hw/xfree86/os-support/misc')
| -rw-r--r-- | xorg-server/hw/xfree86/os-support/misc/SlowBcopy.c | 87 |
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 |