49f77fff14
Save in a few special cases, _X_EXPORT should not be used in C source files. Instead, it should be used in headers, and the proper C source include that header. Some special cases are symbols that need to be shared between modules, but not expected to be used by external drivers, and symbols that are accessible via LoaderSymbol/dlopen. This patch also adds conditionally some new sdk header files, depending on extensions enabled. These files were added to match pattern for other extensions/modules, that is, have the headers "deciding" symbol visibility in the sdk. These headers are: o Xext/panoramiXsrv.h, Xext/panoramiX.h o fbpict.h (unconditionally) o vidmodeproc.h o mioverlay.h (unconditionally, used only by xaa) o xfixes.h (unconditionally, symbols required by dri2) LoaderSymbol and similar functions now don't have different prototypes, in loaderProcs.h and xf86Module.h, so that both headers can be included, without the need of defining IN_LOADER. xf86NewInputDevice() device prototype readded to xf86Xinput.h, but not exported (and with a comment about it).
102 lines
2.0 KiB
C
102 lines
2.0 KiB
C
/*******************************************************************************
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for Alpha Linux
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*******************************************************************************/
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/*
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* Create a dependency that should be immune from the effect of register
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* renaming as is commonly seen in superscalar processors. This should
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* insert a minimum of 100-ns delays between reads/writes at clock rates
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* up to 100 MHz---GGL
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*
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* Slowbcopy(char *src, char *dst, int count)
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*
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*/
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#ifdef HAVE_XORG_CONFIG_H
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#include <xorg-config.h>
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#endif
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#include <X11/X.h>
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#include "xf86.h"
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#include "xf86Priv.h"
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#include "xf86_OSlib.h"
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#include "compiler.h"
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static int really_slow_bcopy;
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void
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xf86SetReallySlowBcopy(void)
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{
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really_slow_bcopy = 1;
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}
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#if defined(__i386__) || defined(__amd64__)
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static void xf86_really_slow_bcopy(unsigned char *src, unsigned char *dst, int len)
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{
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while(len--)
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{
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*dst++ = *src++;
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outb(0x80, 0x00);
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}
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}
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#endif
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/* The outb() isn't needed on my machine, but who knows ... -- ost */
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void
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xf86SlowBcopy(unsigned char *src, unsigned char *dst, int len)
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{
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#if defined(__i386__) || defined(__amd64__)
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if (really_slow_bcopy) {
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xf86_really_slow_bcopy(src, dst, len);
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return;
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}
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#endif
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while(len--)
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*dst++ = *src++;
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}
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#ifdef __alpha__
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#ifdef linux
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#define SPARSE (7)
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#else
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#define SPARSE 0
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#endif
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void
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xf86SlowBCopyFromBus(unsigned char *src, unsigned char *dst, int count)
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{
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unsigned long addr;
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long result;
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addr = (unsigned long) src;
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while( count ){
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result = *(volatile int *) addr;
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result >>= ((addr>>SPARSE) & 3) * 8;
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*dst++ = (unsigned char) (0xffUL & result);
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addr += 1<<SPARSE;
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count--;
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outb(0x80, 0x00);
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}
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}
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void
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xf86SlowBCopyToBus(unsigned char *src, unsigned char *dst, int count)
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{
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unsigned long addr;
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addr = (unsigned long) dst;
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while(count) {
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*(volatile unsigned int *) addr = (unsigned short)(*src) * 0x01010101;
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src++;
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addr += 1<<SPARSE;
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count--;
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outb(0x80, 0x00);
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}
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}
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#endif
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