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-rw-r--r--xorg-server/hw/xfree86/os-support/misc/BUSmemcpy.S153
-rw-r--r--xorg-server/hw/xfree86/os-support/misc/BUSmemcpy.c412
-rw-r--r--xorg-server/hw/xfree86/os-support/misc/Delay.c39
-rw-r--r--xorg-server/hw/xfree86/os-support/misc/IODelay.S53
-rw-r--r--xorg-server/hw/xfree86/os-support/misc/IODelay.c24
-rw-r--r--xorg-server/hw/xfree86/os-support/misc/Makefile.am23
-rw-r--r--xorg-server/hw/xfree86/os-support/misc/Makefile.in663
-rw-r--r--xorg-server/hw/xfree86/os-support/misc/PortIO.S57
-rw-r--r--xorg-server/hw/xfree86/os-support/misc/SlowBcopy.S108
-rw-r--r--xorg-server/hw/xfree86/os-support/misc/SlowBcopy.c127
-rw-r--r--xorg-server/hw/xfree86/os-support/misc/xf86_IlHack.c16
-rw-r--r--xorg-server/hw/xfree86/os-support/misc/xf86_Util.c94
12 files changed, 1769 insertions, 0 deletions
diff --git a/xorg-server/hw/xfree86/os-support/misc/BUSmemcpy.S b/xorg-server/hw/xfree86/os-support/misc/BUSmemcpy.S
new file mode 100644
index 000000000..373723c7d
--- /dev/null
+++ b/xorg-server/hw/xfree86/os-support/misc/BUSmemcpy.S
@@ -0,0 +1,153 @@
+/* $XFree86: xc/programs/Xserver/hw/xfree86/os-support/misc/BUSmemcpy.s,v 1.2 1998/07/25 16:56:49 dawes Exp $ */
+/******************************************************************************
+ Copyright 1993 by Glenn G. Lai
+
+ All Rights Reserved
+
+Permission to use, copy, modify, and distribute this software and its
+documentation for any purpose and without fee is hereby granted,
+provided that the above copyright notice appear in all copies and that
+both that copyright notice and this permission notice appear in
+supporting documentation, and that the name of Glenn G. Lai not be
+used in advertising or publicity pertaining to distribution of the
+software without specific, written prior permission.
+
+Glenn G. Lai DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
+ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
+DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
+ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
+WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
+ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
+SOFTWARE.
+
+Glenn G. Lai
+P.O. Box 4314
+Austin, Tx 78765
+(glenn@cs.utexas.edu)
+8/9/93
+******************************************************************************/
+/* $XConsortium: BUSmemcpy.s /main/4 1996/02/21 17:39:34 kaleb $ */
+
+/*
+ * Modified to use long-alignment of video memory rather than word-alignment
+ * to improve performance for LocalBus video cards. Function names changed
+ * from ISAToMem and MemToISA to BusToMem and MemToBus.
+ *
+ * David Dawes <dawes@XFree86.org>, 25 August 1993.
+ */
+
+
+#include "assyntax.h"
+
+ FILE("BUSmemcpy.s")
+
+ AS_BEGIN
+
+/* BusToMem copies from video memory to main memory
+ MemToBus copies from main memory to video memory
+
+ void xf86BusToMem(unsigned char *dst, unsigned char *src, int len);
+ void xf86MemToBus(unsigned char *dst, unsigned char *src, int len);
+*/
+
+#define dst REGOFF(4,ESP)
+#define src REGOFF(8,ESP)
+#define len REGOFF(12,ESP)
+
+ GLOBL GLNAME(xf86BusToMem)
+ GLOBL GLNAME(xf86MemToBus)
+
+ SEG_DATA
+copyright:
+ STRING("Copyright 8/9/1993 by Glenn G. Lai")
+
+ SEG_TEXT
+ ALIGNTEXT4
+GLNAME(xf86BusToMem):
+ CLD
+ PUSH_L (ESI)
+ MOV_L (EDI, EDX)
+
+ MOV_L (src, ESI)
+ MOV_L (dst, EDI)
+ MOV_L (len, ECX)
+
+ CMP_L (CONST(7), ECX)
+ JC (quickBM)
+
+ TEST_L (CONST(1), ESI)
+ JZ (BwM)
+
+ MOVS_B
+ DEC_L (ECX)
+
+BwM:
+ TEST_L (CONST(2), ESI)
+ JZ (BlM)
+
+ MOVS_W
+ DEC_L (ECX)
+ DEC_L (ECX)
+
+BlM:
+ MOV_L (ECX, EAX)
+ AND_L (CONST(3), EAX)
+ SHR_L (CONST(2), ECX)
+ REP
+ MOVS_L
+ MOV_L (EAX, ECX)
+quickBM:
+ OR_L (ECX, ECX)
+ JZ (return)
+ REP
+ MOVS_B
+return:
+ POP_L (ESI)
+ MOV_L (EDX, EDI)
+ RET
+/************************/
+
+ ALIGNTEXT4
+GLNAME(xf86MemToBus):
+ CLD
+ PUSH_L (ESI)
+ MOV_L (EDI, EDX)
+
+ MOV_L (src, ESI)
+ MOV_L (dst, EDI)
+ MOV_L (len, ECX)
+
+ CMP_L (CONST(7), ECX)
+ JC (quickMB)
+
+ TEST_L (CONST(1), EDI)
+ JZ (MwB)
+
+ MOVS_B
+ DEC_L (ECX)
+
+MwB:
+ TEST_L (CONST(2), EDI)
+ JZ (MlB)
+
+ MOVS_W
+ DEC_L (ECX)
+ DEC_L (ECX)
+
+MlB:
+ MOV_L (ECX, EAX)
+ AND_L (CONST(3), EAX)
+ SHR_L (CONST(2), ECX)
+ REP
+ MOVS_L
+ MOV_L (EAX, ECX)
+quickMB:
+ OR_L (ECX, ECX)
+ JZ (return)
+ REP
+ MOVS_B
+
+ POP_L (ESI)
+ MOV_L (EDX, EDI)
+ RET
+
diff --git a/xorg-server/hw/xfree86/os-support/misc/BUSmemcpy.c b/xorg-server/hw/xfree86/os-support/misc/BUSmemcpy.c
new file mode 100644
index 000000000..b482b867a
--- /dev/null
+++ b/xorg-server/hw/xfree86/os-support/misc/BUSmemcpy.c
@@ -0,0 +1,412 @@
+
+/****************************************************************************
+
+ For Alpha Linux, BusToMem() and MemToBus() can be simply memcpy(), BUT:
+ we need to prevent unaligned operations when accessing DENSE space on the BUS,
+ as the video memory is mmap'd that way. The below code does this.
+
+NOTE: we could simply use the "memcpy()" from LIBC here, but that, currently, is
+ not as fast.
+
+Thanks to Linus Torvalds for contributing this code.
+
+****************************************************************************/
+
+
+#ifdef HAVE_XORG_CONFIG_H
+#include <xorg-config.h>
+#endif
+
+#include <X11/X.h>
+#include "xf86.h"
+#include "xf86Priv.h"
+#include "xf86_OSlib.h"
+
+#ifdef __alpha__
+
+#include "compiler.h"
+
+/*
+ * The Jensen lacks dense memory, thus we have to address the bus via
+ * the sparse addressing scheme. These routines are only used in s3im.c
+ * Non time critical code uses SlowBCopy_{from/to} bus.
+ *
+ * Martin Ostermann (ost@comnets.rwth-aachen.de) - Apr.-Sep. 1996
+ */
+
+#ifdef TEST_JENSEN_CODE /* define to test the Sparse addressing on a non-Jensen */
+#define LWORD_CODING (0x18)
+#define SPARSE (5)
+#else
+#define LWORD_CODING (0x60)
+#define SPARSE (7)
+#endif
+
+void
+xf86JensenMemToBus(char *Base, long dst, long src, int count)
+{
+ if( ((long)src^((long)dst)) & 3) {
+ /* src & dst are NOT aligned to each other */
+ unsigned long addr;
+ unsigned long low_word, high_word,last_read;
+ long rm,loop;
+ unsigned long tmp,org,org2,mask,src_org,count_org;
+
+ src_org=src;
+ count_org=count;
+
+ /* add EISA longword coding and round off*/
+ addr = (long)(Base+(dst<<SPARSE) + LWORD_CODING) & ~(3<<SPARSE);
+ rm = (long)dst & 3;
+ count += rm;
+
+ count = count_org + rm;
+ org = *(volatile unsigned int *)addr;
+ __asm__("ldq_u %0,%1"
+ :"=r" (low_word):"m" (*(unsigned long *)(src_org)));
+ src = src_org - rm;
+ if( count > 4 ) {
+ last_read = src_org+count_org - 1;
+ __asm__("ldq_u %0,%1"
+ :"=r" (high_word):"m" (*(unsigned long *)(src+4)));
+ __asm__("extll %1,%2,%0"
+ :"=r" (low_word)
+ :"r" (low_word), "r" ((unsigned long)(src)));
+ __asm__("extlh %1,%2,%0"
+ :"=r" (tmp)
+ :"r" (high_word), "r" ((unsigned long)(src)));
+ tmp |= low_word;
+ src += 4;
+ __asm__("mskqh %1,%2,%0"
+ :"=r" (tmp)
+ :"r" (tmp), "r" (rm));
+ __asm__("mskql %1,%2,%0"
+ :"=r" (org2)
+ :"r" (org), "r" (rm));
+ tmp |= org2;
+
+ loop = (count-4) >> 2; /* loop eqv. count>=4 ; count -= 4 */
+ while (loop) {
+ /* tmp to be stored completly -- need to read next word*/
+ low_word = high_word;
+ *(volatile unsigned int *) (addr) = tmp;
+ __asm__("ldq_u %0,%1"
+ :"=r" (high_word):"m" (*(unsigned long*)(src+4)));
+ loop --;
+ __asm__("extll %1,%2,%0"
+ :"=r" (low_word)
+ :"r" (low_word), "r" ((unsigned long)src));
+ __asm__("extlh %1,%2,%0"
+ :"=r" (tmp)
+ :"r" (high_word), "r" ((unsigned long)src));
+ src += 4;
+ tmp |= low_word;
+ addr += 4<<SPARSE;
+ }
+ if ( count & 3 ) {
+ /* Store tmp completly, and possibly read one more word.*/
+ *(volatile unsigned int *) (addr) = tmp;
+ __asm__("ldq_u %0,%1"
+ :"=r" (tmp):"m" (*((unsigned long *)(last_read)) ));
+ addr += 4<<SPARSE;
+ __asm__("extll %1,%2,%0"
+ :"=r" (low_word)
+ :"r" (high_word), "r" ((unsigned long)src));
+ __asm__("extlh %1,%2,%0"
+ :"=r" (tmp)
+ :"r" (tmp), "r" ((unsigned long)src));
+ tmp |= low_word;
+ org = *(volatile unsigned int *)addr;
+
+ __asm__("mskql %1,%2,%0"
+ :"=r" (tmp)
+ :"r" (tmp), "r" (count&3));
+ __asm__("mskqh %1,%2,%0"
+ :"=r" (org)
+ :"r" (org), "r" (count&3));
+
+ tmp |= org;
+ }
+ *(volatile unsigned int *) (addr) = tmp;
+ return;
+ } else { /* count > 4 */
+ __asm__("ldq_u %0,%1"
+ :"=r" (high_word):"m" (*(unsigned long *)(src+4)));
+ __asm__("extll %1,%2,%0"
+ :"=r" (low_word)
+ :"r" (low_word), "r" ((unsigned long)(src)));
+ __asm__("extlh %1,%2,%0"
+ :"=r" (tmp)
+ :"r" (high_word), "r" ((unsigned long)(src)));
+ tmp |= low_word;
+ if( count < 4 ) {
+
+ mask = -1;
+ __asm__("mskqh %1,%2,%0"
+ :"=r" (mask)
+ :"r" (mask), "r" (rm));
+ __asm__("mskql %1,%2,%0"
+ :"=r" (mask)
+ :"r" (mask), "r" (count));
+ tmp = (tmp & mask) | (org & ~mask);
+ *(volatile unsigned int *) (addr) = tmp;
+ return;
+ } else {
+ __asm__("mskqh %1,%2,%0"
+ :"=r" (tmp)
+ :"r" (tmp), "r" (rm));
+ __asm__("mskql %1,%2,%0"
+ :"=r" (org2)
+ :"r" (org), "r" (rm));
+
+ tmp |= org2;
+ *(volatile unsigned int *) (addr) = tmp;
+ return;
+ }
+ }
+ } else { /* src & dst are aligned to each other */
+ unsigned long addr;
+ unsigned int tmp,org,rm;
+ unsigned int *src_r;
+
+ /* add EISA longword coding and round off*/
+ addr = (long)(Base+(dst<<SPARSE) + LWORD_CODING) & ~(3<<SPARSE);
+
+ src_r = (unsigned int*)((long)src & ~3L);
+ rm=(long)src & 3;
+ count += rm;
+
+ tmp = *src_r;
+ org = *(volatile unsigned int *)addr;
+
+ __asm__("mskqh %1,%2,%0"
+ :"=r" (tmp)
+ :"r" (tmp), "r" (rm));
+ __asm__("mskql %1,%2,%0"
+ :"=r" (org)
+ :"r" (org), "r" (rm));
+
+ tmp |= org;
+
+ while (count > 4) {
+ *(volatile unsigned int *) addr = tmp;
+ addr += 4<<SPARSE;
+ src_r += 1;
+ tmp = *src_r;
+ count -= 4;
+ }
+
+ org = *(volatile unsigned int *)addr;
+ __asm__("mskql %1,%2,%0"
+ :"=r" (tmp)
+ :"r" (tmp), "r" (count));
+ __asm__("mskqh %1,%2,%0"
+ :"=r" (org)
+ :"r" (org), "r" (count));
+ tmp |= org;
+ *(volatile unsigned int *) (addr) = tmp;
+ }
+}
+
+void
+xf86JensenBusToMem(char *Base, char *dst, unsigned long src, int count)
+{
+#if 0
+ /* Optimization of BusToMem() is left as an exercise to the reader ;-)
+ * Consider that ldq_u/extlh/extll won't work because of the bus being
+ * only 4 bytes wide!
+ */
+#else
+ unsigned long addr;
+ long result;
+
+ addr = (unsigned long)(Base+(src<<SPARSE)) ;
+ while( addr & (3<<SPARSE) ){
+ if(count <= 0) return;
+ result = *(volatile int *) addr;
+ result >>= ((addr>>SPARSE) & 3) * 8;
+ *dst++ = (char) result;
+ addr += 1<<SPARSE;
+ count--;
+ }
+ count -=4;
+ while(count >= 0){
+ int i;
+
+ result = *(volatile int *) (addr+LWORD_CODING);
+ for(i=4;i--;) {
+ *dst++ = (char) result;
+ result >>= 8;
+ }
+ addr += 4<<SPARSE;
+ count -= 4;
+ }
+ count +=4;
+
+ while( count ){
+ result = *(volatile int *) addr;
+ result >>= ((addr>>SPARSE) & 3) * 8;
+ *dst++ = (char) result;
+ addr += 1<<SPARSE;
+ count--;
+ }
+#endif
+}
+
+
+static unsigned long __memcpy(unsigned long dest, unsigned long src, int n);
+
+_X_EXPORT void
+xf86BusToMem(unsigned char *dst, unsigned char *src, int len)
+{
+ __memcpy((unsigned long)dst, (unsigned long)src, len);
+}
+_X_EXPORT void
+xf86MemToBus(unsigned char *dst, unsigned char *src, int len)
+{
+ if (len == sizeof(int))
+ if (!(((long)src | (long)dst) & 3))
+ *((unsigned int*)dst) = *((unsigned int*)(src));
+ else {
+ int i;
+ if (((long)src) & 3)
+ i = ldl_u((unsigned int*)src);
+ else
+ i = *(unsigned int*)src;
+ if (((long)dst) & 3)
+ stl_u(i,(unsigned int*)dst);
+ else
+ *(unsigned int*)dst = i;
+ }
+ else
+ __memcpy((unsigned long)dst, (unsigned long)src, len);
+}
+
+/*
+ * linux/arch/alpha/lib/memcpy.c
+ *
+ * Copyright (C) 1995 Linus Torvalds, used with his permission.
+ */
+
+/*
+ * This is a reasonably optimized memcpy() routine.
+ */
+
+/*
+ * Note that the C code is written to be optimized into good assembly. However,
+ * at this point gcc is unable to sanely compile "if (n >= 0)", resulting in a
+ * explicit compare against 0 (instead of just using the proper "blt reg, xx" or
+ * "bge reg, xx"). I hope alpha-gcc will be fixed to notice this eventually..
+ */
+
+/*
+ * This should be done in one go with ldq_u*2/mask/stq_u. Do it
+ * with a macro so that we can fix it up later..
+ */
+#define ALIGN_DEST_TO8(d,s,n) \
+ while (d & 7) { \
+ if (n <= 0) return; \
+ n--; \
+ *(char *) d = *(char *) s; \
+ d++; s++; \
+ }
+
+/*
+ * This should similarly be done with ldq_u*2/mask/stq. The destination
+ * is aligned, but we don't fill in a full quad-word
+ */
+#define DO_REST(d,s,n) \
+ while (n > 0) { \
+ n--; \
+ *(char *) d = *(char *) s; \
+ d++; s++; \
+ }
+
+/*
+ * This should be done with ldq/mask/stq. The source and destination are
+ * aligned, but we don't fill in a full quad-word
+ */
+#define DO_REST_ALIGNED(d,s,n) DO_REST(d,s,n)
+
+/*
+ * This does unaligned memory copies. We want to avoid storing to
+ * an unaligned address, as that would do a read-modify-write cycle.
+ * We also want to avoid double-reading the unaligned reads.
+ *
+ * Note the ordering to try to avoid load (and address generation) latencies.
+ */
+static __inline__ void __memcpy_unaligned(unsigned long d, unsigned long s, long n)
+{
+ ALIGN_DEST_TO8(d,s,n);
+ n -= 8; /* to avoid compare against 8 in the loop */
+ if (n >= 0) {
+ unsigned long low_word, high_word;
+ __asm__("ldq_u %0,%1":"=r" (low_word):"m" (*(unsigned long *) s));
+ do {
+ unsigned long tmp;
+ __asm__("ldq_u %0,%1":"=r" (high_word):"m" (*(unsigned long *)(s+8)));
+ n -= 8;
+ __asm__("extql %1,%2,%0"
+ :"=r" (low_word)
+ :"r" (low_word), "r" (s));
+ __asm__("extqh %1,%2,%0"
+ :"=r" (tmp)
+ :"r" (high_word), "r" (s));
+ s += 8;
+ *(unsigned long *) d = low_word | tmp;
+ d += 8;
+ low_word = high_word;
+ } while (n >= 0);
+ }
+ n += 8;
+ DO_REST(d,s,n);
+}
+
+/*
+ * Hmm.. Strange. The __asm__ here is there to make gcc use a integer register
+ * for the load-store. I don't know why, but it would seem that using a floating
+ * point register for the move seems to slow things down (very small difference,
+ * though).
+ *
+ * Note the ordering to try to avoid load (and address generation) latencies.
+ */
+static __inline__ void __memcpy_aligned(unsigned long d, unsigned long s, long n)
+{
+ ALIGN_DEST_TO8(d,s,n);
+ n -= 8;
+ while (n >= 0) {
+ unsigned long tmp;
+ __asm__("ldq %0,%1":"=r" (tmp):"m" (*(unsigned long *) s));
+ n -= 8;
+ s += 8;
+ *(unsigned long *) d = tmp;
+ d += 8;
+ }
+ n += 8;
+ DO_REST_ALIGNED(d,s,n);
+}
+
+static unsigned long __memcpy(unsigned long dest, unsigned long src, int n)
+{
+ if (!((dest ^ src) & 7)) {
+ __memcpy_aligned(dest, src, n);
+ return dest;
+ }
+ __memcpy_unaligned(dest, src, n);
+ return dest;
+}
+
+#else /* __alpha__ */
+
+void
+xf86BusToMem(unsigned char *dst, unsigned char *src, int len)
+{
+ memcpy(dst, src, len);
+}
+void
+xf86MemToBus(unsigned char *dst, unsigned char *src, int len)
+{
+ memcpy(dst, src, len);
+}
+
+#endif /* __alpha__ */
diff --git a/xorg-server/hw/xfree86/os-support/misc/Delay.c b/xorg-server/hw/xfree86/os-support/misc/Delay.c
new file mode 100644
index 000000000..b18789a3a
--- /dev/null
+++ b/xorg-server/hw/xfree86/os-support/misc/Delay.c
@@ -0,0 +1,39 @@
+#ifdef HAVE_XORG_CONFIG_H
+#include <xorg-config.h>
+#endif
+
+#include <X11/X.h>
+#include "xf86.h"
+#include "xf86Priv.h"
+#include "xf86_OSlib.h"
+
+#include <time.h>
+
+_X_EXPORT void
+xf86UDelay(long usec)
+{
+#if 0
+ struct timeval start, interrupt;
+#else
+ int sigio;
+
+ sigio = xf86BlockSIGIO();
+ usleep(usec);
+ xf86UnblockSIGIO(sigio);
+#endif
+
+#if 0
+ gettimeofday(&start,NULL);
+
+ do {
+ usleep(usec);
+ gettimeofday(&interrupt,NULL);
+
+ if ((usec = usec - (interrupt.tv_sec - start.tv_sec) * 1000000
+ - (interrupt.tv_usec - start.tv_usec)) < 0)
+ break;
+ start = interrupt;
+ } while (1);
+#endif
+}
+
diff --git a/xorg-server/hw/xfree86/os-support/misc/IODelay.S b/xorg-server/hw/xfree86/os-support/misc/IODelay.S
new file mode 100644
index 000000000..4c6e32f3f
--- /dev/null
+++ b/xorg-server/hw/xfree86/os-support/misc/IODelay.S
@@ -0,0 +1,53 @@
+/* $XFree86: xc/programs/Xserver/hw/xfree86/os-support/misc/IODelay.S,v 1.1 1999/07/10 07:24:50 dawes Exp $ */
+/*******************************************************************************
+ Copyright 1994 by Glenn G. Lai
+
+ All Rights Reserved
+
+Permission to use, copy, modify, and distribute this software and its
+documentation for any purpose and without fee is hereby granted,
+provided that the above copyr notice appear in all copies and that
+both that copyr notice and this permission notice appear in
+supporting documentation, and that the name of Glenn G. Lai not be
+used in advertising or publicity pertaining to distribution of the
+software without specific, written prior permission.
+
+Glenn G. Lai DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
+ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
+DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
+ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
+WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
+ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
+SOFTWARE.
+
+Glenn G. Lai
+P.O. Box 4314
+Austin, Tx 78765
+glenn@cs.utexas.edu)
+7/21/94
+*******************************************************************************/
+/* $XConsortium: IODelay.s /main/4 1996/02/21 17:40:21 kaleb $ */
+
+/*
+ * All we really need is a delay of about 40ns for I/O recovery for just
+ * about any occasion, but we'll be more conservative here: On a
+ * 100-MHz CPU, produce at least a delay of 1,000ns.
+ */
+
+#include "assyntax.h"
+
+ FILE("DACDelay.s")
+
+ AS_BEGIN
+
+ GLOBL GLNAME(xf86IODelay)
+
+ SEG_TEXT
+ ALIGNTEXT4
+GLNAME(xf86IODelay):
+ MOV_L (CONST(100), EAX)
+delay_it:
+ DEC_L (EAX)
+ JNE (delay_it)
+ RET
+
diff --git a/xorg-server/hw/xfree86/os-support/misc/IODelay.c b/xorg-server/hw/xfree86/os-support/misc/IODelay.c
new file mode 100644
index 000000000..e4422f234
--- /dev/null
+++ b/xorg-server/hw/xfree86/os-support/misc/IODelay.c
@@ -0,0 +1,24 @@
+/*******************************************************************************
+ Stub for Alpha Linux
+*******************************************************************************/
+
+#ifdef HAVE_XORG_CONFIG_H
+#include <xorg-config.h>
+#endif
+
+#include <X11/X.h>
+#include "xf86.h"
+#include "xf86Priv.h"
+#include "xf86_OSlib.h"
+
+/*
+ * All we really need is a delay of about 40ns for I/O recovery for just
+ * about any occasion, but we'll be more conservative here: On a
+ * 100-MHz CPU, produce at least a delay of 1,000ns.
+ */
+_X_EXPORT void
+xf86IODelay()
+{
+ xf86UDelay(1);
+}
+
diff --git a/xorg-server/hw/xfree86/os-support/misc/Makefile.am b/xorg-server/hw/xfree86/os-support/misc/Makefile.am
new file mode 100644
index 000000000..65fbe92b4
--- /dev/null
+++ b/xorg-server/hw/xfree86/os-support/misc/Makefile.am
@@ -0,0 +1,23 @@
+# FIXME: Add the *.S files to build when applicable
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+OTHER_SRCS = BUSmemcpy.c IODelay.c SlowBcopy.c
+
+ARCH_SRCS = $(OTHER_SRCS)
+
+# FIXME: Add to the build (NeedPortIO)
+PORTIO_SRCS = PortIO.S
+
+# FIXME: Add to the build (if HasGcc || HasGcc2)
+ILHACK_SRCS = xf86_IlHack.c
+
+noinst_LTLIBRARIES = libmisc.la
+
+libmisc_la_SOURCES = xf86_Util.c Delay.c $(ARCH_SRCS)
+
+#AM_LDFLAGS = -r
+
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+
+AM_CFLAGS = $(XORG_CFLAGS) $(DIX_CFLAGS)
+
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diff --git a/xorg-server/hw/xfree86/os-support/misc/Makefile.in b/xorg-server/hw/xfree86/os-support/misc/Makefile.in
new file mode 100644
index 000000000..19a94d7cc
--- /dev/null
+++ b/xorg-server/hw/xfree86/os-support/misc/Makefile.in
@@ -0,0 +1,663 @@
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+# @configure_input@
+
+# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
+# 2003, 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
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+
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+ $(top_builddir)/include/xorg-server.h \
+ $(top_builddir)/include/dix-config.h \
+ $(top_builddir)/include/xgl-config.h \
+ $(top_builddir)/include/xorg-config.h \
+ $(top_builddir)/include/xkb-config.h \
+ $(top_builddir)/include/xwin-config.h \
+ $(top_builddir)/include/kdrive-config.h
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+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/xf86_Util.Plo@am__quote@
+
+.c.o:
+@am__fastdepCC_TRUE@ $(COMPILE) -MT $@ -MD -MP -MF $(DEPDIR)/$*.Tpo -c -o $@ $<
+@am__fastdepCC_TRUE@ mv -f $(DEPDIR)/$*.Tpo $(DEPDIR)/$*.Po
+@AMDEP_TRUE@@am__fastdepCC_FALSE@ source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCC_FALSE@ DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCC_FALSE@ $(COMPILE) -c $<
+
+.c.obj:
+@am__fastdepCC_TRUE@ $(COMPILE) -MT $@ -MD -MP -MF $(DEPDIR)/$*.Tpo -c -o $@ `$(CYGPATH_W) '$<'`
+@am__fastdepCC_TRUE@ mv -f $(DEPDIR)/$*.Tpo $(DEPDIR)/$*.Po
+@AMDEP_TRUE@@am__fastdepCC_FALSE@ source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCC_FALSE@ DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCC_FALSE@ $(COMPILE) -c `$(CYGPATH_W) '$<'`
+
+.c.lo:
+@am__fastdepCC_TRUE@ $(LTCOMPILE) -MT $@ -MD -MP -MF $(DEPDIR)/$*.Tpo -c -o $@ $<
+@am__fastdepCC_TRUE@ mv -f $(DEPDIR)/$*.Tpo $(DEPDIR)/$*.Plo
+@AMDEP_TRUE@@am__fastdepCC_FALSE@ source='$<' object='$@' libtool=yes @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCC_FALSE@ DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCC_FALSE@ $(LTCOMPILE) -c -o $@ $<
+
+mostlyclean-libtool:
+ -rm -f *.lo
+
+clean-libtool:
+ -rm -rf .libs _libs
+
+ID: $(HEADERS) $(SOURCES) $(LISP) $(TAGS_FILES)
+ list='$(SOURCES) $(HEADERS) $(LISP) $(TAGS_FILES)'; \
+ unique=`for i in $$list; do \
+ if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
+ done | \
+ $(AWK) '{ files[$$0] = 1; nonemtpy = 1; } \
+ END { if (nonempty) { for (i in files) print i; }; }'`; \
+ mkid -fID $$unique
+tags: TAGS
+
+TAGS: $(HEADERS) $(SOURCES) $(TAGS_DEPENDENCIES) \
+ $(TAGS_FILES) $(LISP)
+ tags=; \
+ here=`pwd`; \
+ list='$(SOURCES) $(HEADERS) $(LISP) $(TAGS_FILES)'; \
+ unique=`for i in $$list; do \
+ if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
+ done | \
+ $(AWK) '{ files[$$0] = 1; nonempty = 1; } \
+ END { if (nonempty) { for (i in files) print i; }; }'`; \
+ if test -z "$(ETAGS_ARGS)$$tags$$unique"; then :; else \
+ test -n "$$unique" || unique=$$empty_fix; \
+ $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+ $$tags $$unique; \
+ fi
+ctags: CTAGS
+CTAGS: $(HEADERS) $(SOURCES) $(TAGS_DEPENDENCIES) \
+ $(TAGS_FILES) $(LISP)
+ tags=; \
+ list='$(SOURCES) $(HEADERS) $(LISP) $(TAGS_FILES)'; \
+ unique=`for i in $$list; do \
+ if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
+ done | \
+ $(AWK) '{ files[$$0] = 1; nonempty = 1; } \
+ END { if (nonempty) { for (i in files) print i; }; }'`; \
+ test -z "$(CTAGS_ARGS)$$tags$$unique" \
+ || $(CTAGS) $(CTAGSFLAGS) $(AM_CTAGSFLAGS) $(CTAGS_ARGS) \
+ $$tags $$unique
+
+GTAGS:
+ here=`$(am__cd) $(top_builddir) && pwd` \
+ && cd $(top_srcdir) \
+ && gtags -i $(GTAGS_ARGS) $$here
+
+distclean-tags:
+ -rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
+
+distdir: $(DISTFILES)
+ @srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+ topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+ list='$(DISTFILES)'; \
+ dist_files=`for file in $$list; do echo $$file; done | \
+ sed -e "s|^$$srcdirstrip/||;t" \
+ -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
+ case $$dist_files in \
+ */*) $(MKDIR_P) `echo "$$dist_files" | \
+ sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+ sort -u` ;; \
+ esac; \
+ for file in $$dist_files; do \
+ if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+ if test -d $$d/$$file; then \
+ dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
+ if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+ cp -pR $(srcdir)/$$file $(distdir)$$dir || exit 1; \
+ fi; \
+ cp -pR $$d/$$file $(distdir)$$dir || exit 1; \
+ else \
+ test -f $(distdir)/$$file \
+ || cp -p $$d/$$file $(distdir)/$$file \
+ || exit 1; \
+ fi; \
+ done
+check-am: all-am
+check: check-am
+all-am: Makefile $(LTLIBRARIES)
+installdirs:
+install: install-am
+install-exec: install-exec-am
+install-data: install-data-am
+uninstall: uninstall-am
+
+install-am: all-am
+ @$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-am
+install-strip:
+ $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+ install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+ `test -z '$(STRIP)' || \
+ echo "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'"` install
+mostlyclean-generic:
+
+clean-generic:
+
+distclean-generic:
+ -test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+
+maintainer-clean-generic:
+ @echo "This command is intended for maintainers to use"
+ @echo "it deletes files that may require special tools to rebuild."
+clean: clean-am
+
+clean-am: clean-generic clean-libtool clean-noinstLTLIBRARIES \
+ mostlyclean-am
+
+distclean: distclean-am
+ -rm -rf ./$(DEPDIR)
+ -rm -f Makefile
+distclean-am: clean-am distclean-compile distclean-generic \
+ distclean-tags
+
+dvi: dvi-am
+
+dvi-am:
+
+html: html-am
+
+info: info-am
+
+info-am:
+
+install-data-am:
+
+install-dvi: install-dvi-am
+
+install-exec-am:
+
+install-html: install-html-am
+
+install-info: install-info-am
+
+install-man:
+
+install-pdf: install-pdf-am
+
+install-ps: install-ps-am
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-am
+ -rm -rf ./$(DEPDIR)
+ -rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-compile mostlyclean-generic \
+ mostlyclean-libtool
+
+pdf: pdf-am
+
+pdf-am:
+
+ps: ps-am
+
+ps-am:
+
+uninstall-am:
+
+.MAKE: install-am install-strip
+
+.PHONY: CTAGS GTAGS all all-am check check-am clean clean-generic \
+ clean-libtool clean-noinstLTLIBRARIES ctags distclean \
+ distclean-compile distclean-generic distclean-libtool \
+ distclean-tags distdir dvi dvi-am html html-am info info-am \
+ install install-am install-data install-data-am install-dvi \
+ install-dvi-am install-exec install-exec-am install-html \
+ install-html-am install-info install-info-am install-man \
+ install-pdf install-pdf-am install-ps install-ps-am \
+ install-strip installcheck installcheck-am installdirs \
+ maintainer-clean maintainer-clean-generic mostlyclean \
+ mostlyclean-compile mostlyclean-generic mostlyclean-libtool \
+ pdf pdf-am ps ps-am tags uninstall uninstall-am
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/xorg-server/hw/xfree86/os-support/misc/PortIO.S b/xorg-server/hw/xfree86/os-support/misc/PortIO.S
new file mode 100644
index 000000000..75db31156
--- /dev/null
+++ b/xorg-server/hw/xfree86/os-support/misc/PortIO.S
@@ -0,0 +1,57 @@
+/* $XFree86$ */
+
+/* Port I/O functions for platforms with no inlining. */
+
+#include "assyntax.h"
+
+ FILE("PortIO.s")
+
+ AS_BEGIN
+
+ GLOBL GLNAME(outb)
+ GLOBL GLNAME(outw)
+ GLOBL GLNAME(outl)
+ GLOBL GLNAME(inb)
+ GLOBL GLNAME(inw)
+ GLOBL GLNAME(inl)
+
+ SEG_TEXT
+ ALIGNTEXT4
+GLNAME(outb):
+ MOV_L (REGOFF(4,ESP), EDX)
+ MOV_L (REGOFF(8,ESP), EAX)
+ OUT_B
+ RET
+
+ ALIGNTEXT4
+GLNAME(outw):
+ MOV_L (REGOFF(4,ESP), EDX)
+ MOV_L (REGOFF(8,ESP), EAX)
+ OUT_W
+ RET
+
+ ALIGNTEXT4
+GLNAME(outl):
+ MOV_L (REGOFF(4,ESP), EDX)
+ MOV_L (REGOFF(8,ESP), EAX)
+ OUT_L
+ RET
+
+ ALIGNTEXT4
+GLNAME(inb):
+ MOV_L (REGOFF(4,ESP), EDX)
+ IN_B
+ RET
+
+ ALIGNTEXT4
+GLNAME(inw):
+ MOV_L (REGOFF(4,ESP), EDX)
+ IN_L
+ RET
+
+ ALIGNTEXT4
+GLNAME(inl):
+ MOV_L (REGOFF(4,ESP), EDX)
+ IN_L
+ RET
+
diff --git a/xorg-server/hw/xfree86/os-support/misc/SlowBcopy.S b/xorg-server/hw/xfree86/os-support/misc/SlowBcopy.S
new file mode 100644
index 000000000..9b6af1d69
--- /dev/null
+++ b/xorg-server/hw/xfree86/os-support/misc/SlowBcopy.S
@@ -0,0 +1,108 @@
+/* $XFree86: xc/programs/Xserver/hw/xfree86/os-support/misc/SlowBcopy.S,v 1.1 1999/07/10 07:24:51 dawes Exp $ */
+/*******************************************************************************
+ Copyright 1994 by Glenn G. Lai
+
+ All Rights Reserved
+
+Permission to use, copy, modify, and distribute this software and its
+documentation for any purpose and without fee is hereby granted,
+provided that the above copyr notice appear in all copies and that
+both that copyr notice and this permission notice appear in
+supporting documentation, and that the name of Glenn G. Lai not be
+used in advertising or publicity pertaining to distribution of the
+software without specific, written prior permission.
+
+Glenn G. Lai DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
+ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
+DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
+ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
+WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
+ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
+SOFTWARE.
+
+Glenn G. Lai
+P.O. Box 4314
+Austin, Tx 78765
+glenn@cs.utexas.edu)
+7/21/94
+*******************************************************************************/
+/* $XConsortium: SlowBcopy.s /main/4 1996/02/21 17:40:52 kaleb $ */
+
+/*
+ * Modified from the output generated by GCC
+ *
+ * Create a dependency that should be immune from the effect of register
+ * renaming as is commonly seen in superscalar processors. This should
+ * insert a minimum of 100-ns delays between reads/writes at clock rates
+ * up to 100 MHz---GGL
+ *
+ * Slowbcopy(char *src, char *dst, int count)
+ *
+ */
+
+#include "assyntax.h"
+
+ FILE("SlowBcopy.s")
+
+ AS_BEGIN
+
+gcc2_compiled.:
+___gnu_compiled_c:
+
+ GLOBL GLNAME(xf86SlowBcopy)
+
+ SEG_TEXT
+ ALIGNTEXT4
+GLNAME(xf86SlowBcopy):
+ PUSH_L (EBP)
+ MOV_L (ESP,EBP)
+ PUSH_L (ESI)
+ PUSH_L (EBX)
+ MOV_L (REGOFF(8,EBP),ECX)
+ MOV_L (REGOFF(12,EBP),EDX)
+ MOV_L (REGOFF(16,EBP),ESI)
+ XOR_L (EAX,EAX)
+ CMP_L (ESI,EAX)
+ JGE (L3)
+
+ ALIGNTEXT4
+L5:
+ MOV_B (REGIND(ECX),BL)
+
+ MOV_B (BL, BH)
+ MOV_B (BH, BL)
+ MOV_B (BL, BH)
+ MOV_B (BH, BL)
+ MOV_B (BL, BH)
+ MOV_B (BH, BL)
+ MOV_B (BL, BH)
+ MOV_B (BH, BL)
+ MOV_B (BL, BH)
+ MOV_B (BH, BL)
+
+ MOV_B (BL,REGIND(EDX))
+
+ INC_L (ECX)
+ DEC_L (ECX)
+ INC_L (ECX)
+ DEC_L (ECX)
+ INC_L (ECX)
+ DEC_L (ECX)
+ INC_L (ECX)
+ DEC_L (ECX)
+ INC_L (ECX)
+ DEC_L (ECX)
+
+ INC_L (ECX)
+ INC_L (EDX)
+ INC_L (EAX)
+ CMP_L (ESI,EAX)
+ JL (L5)
+L3:
+ LEA_L (REGOFF(-8,EBP),ESP)
+ POP_L (EBX)
+ POP_L (ESI)
+ MOV_L (EBP,ESP)
+ POP_L (EBP)
+ RET
+
diff --git a/xorg-server/hw/xfree86/os-support/misc/SlowBcopy.c b/xorg-server/hw/xfree86/os-support/misc/SlowBcopy.c
new file mode 100644
index 000000000..5cd716823
--- /dev/null
+++ b/xorg-server/hw/xfree86/os-support/misc/SlowBcopy.c
@@ -0,0 +1,127 @@
+/*******************************************************************************
+ 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
+ * insert a minimum of 100-ns delays between reads/writes at clock rates
+ * up to 100 MHz---GGL
+ *
+ * Slowbcopy(char *src, char *dst, int count)
+ *
+ */
+
+#ifdef HAVE_XORG_CONFIG_H
+#include <xorg-config.h>
+#endif
+
+#include <X11/X.h>
+#include "xf86.h"
+#include "xf86Priv.h"
+#include "xf86_OSlib.h"
+#include "compiler.h"
+
+static int really_slow_bcopy;
+
+_X_EXPORT void
+xf86SetReallySlowBcopy(void)
+{
+ really_slow_bcopy = 1;
+}
+
+#if defined(__i386__) || defined(__x86_64__)
+static void xf86_really_slow_bcopy(unsigned char *src, unsigned char *dst, int len)
+{
+ while(len--)
+ {
+ *dst++ = *src++;
+ outb(0x80, 0x00);
+ }
+}
+#endif
+
+/* The outb() isn't needed on my machine, but who knows ... -- ost */
+_X_EXPORT void
+xf86SlowBcopy(unsigned char *src, unsigned char *dst, int len)
+{
+#if defined(__i386__) || defined(__x86_64__)
+ if (really_slow_bcopy) {
+ xf86_really_slow_bcopy(src, dst, len);
+ return;
+ }
+#endif
+ while(len--)
+ *dst++ = *src++;
+}
+
+#ifdef __alpha__
+/*
+ * The Jensen lacks dense memory, thus we have to address the bus via
+ * the sparse addressing scheme. Time critical code uses routines from
+ * BUSmemcpy.c
+ *
+ * Martin Ostermann (ost@comnets.rwth-aachen.de) - Apr.-Sep. 1996
+ */
+
+#ifdef linux
+
+unsigned long _bus_base(void);
+
+#ifdef TEST_JENSEN_CODE /* define to test the Sparse addressing on a non-Jensen */
+#define SPARSE (5)
+#else
+#define SPARSE (7)
+#endif
+
+#define isJensen() (!_bus_base())
+
+#else
+
+#define isJensen() 0
+#define SPARSE 0
+
+#endif
+
+_X_EXPORT void
+xf86SlowBCopyFromBus(unsigned char *src, unsigned char *dst, int count)
+{
+ if (isJensen())
+ {
+ 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);
+}
+
+_X_EXPORT void
+xf86SlowBCopyToBus(unsigned char *src, unsigned char *dst, int count)
+{
+ if (isJensen())
+ {
+ 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
diff --git a/xorg-server/hw/xfree86/os-support/misc/xf86_IlHack.c b/xorg-server/hw/xfree86/os-support/misc/xf86_IlHack.c
new file mode 100644
index 000000000..6c9871d93
--- /dev/null
+++ b/xorg-server/hw/xfree86/os-support/misc/xf86_IlHack.c
@@ -0,0 +1,16 @@
+/*
+ * This file is an incredible crock to get the normally-inline functions
+ * built into the server so that things can be debugged properly.
+ *
+ * Note: this doesn't work when using a compiler other than GCC.
+ */
+
+#define static /**/
+#define __inline__ /**/
+#undef NO_INLINE
+#define DO_PROTOTYPES
+#ifdef HAVE_XORG_CONFIG_H
+#include <xorg-config.h>
+#endif
+
+#include "compiler.h"
diff --git a/xorg-server/hw/xfree86/os-support/misc/xf86_Util.c b/xorg-server/hw/xfree86/os-support/misc/xf86_Util.c
new file mode 100644
index 000000000..9e690591d
--- /dev/null
+++ b/xorg-server/hw/xfree86/os-support/misc/xf86_Util.c
@@ -0,0 +1,94 @@
+/*
+ * Copyright 1993 by David Wexelblat <dwex@goblin.org>
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that
+ * copyright notice and this permission notice appear in supporting
+ * documentation, and that the name of David Wexelblat not be used in
+ * advertising or publicity pertaining to distribution of the software without
+ * specific, written prior permission. David Wexelblat makes no representations
+ * about the suitability of this software for any purpose. It is provided
+ * "as is" without express or implied warranty.
+ *
+ * DAVID WEXELBLAT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL DAVID WEXELBLAT BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ *
+ */
+
+/*
+ * This file is for utility functions that will be shared by other pieces
+ * of the system. Putting things here ensure that all the linking order
+ * dependencies are dealt with, as this library will be linked in last.
+ */
+
+#ifdef HAVE_XORG_CONFIG_H
+#include <xorg-config.h>
+#endif
+
+#include <ctype.h>
+
+/* To prevent empty source file warnings */
+int _xf86misc;
+
+#if 0
+/* For use only with gcc */
+#ifdef __GNUC__
+
+#include "os.h"
+
+char *
+debug_alloca(char *file, int line, int size)
+{
+ char *ptr;
+
+ ptr = Xalloc(size);
+ ErrorF("Alloc: %s line %d; ptr = 0x%x, length = %d\n", file, line,
+ ptr, size);
+ return ptr;
+}
+
+void
+debug_dealloca(char *file, int line, char *ptr)
+{
+ ErrorF("Dealloc: %s line %d; ptr = 0x%x\n", file, line, ptr);
+ Xfree(ptr);
+}
+#endif
+#endif
+
+#if defined(ISC) || defined(Lynx)
+
+#include <math.h>
+
+/* Needed for apm_driver.c */
+/* These functions are modeled after the functions inside gnu's libc */
+
+static double
+copysign(double x, double y)
+{
+ x = fabs(x);
+ return y < 0 ? - x : x;
+}
+
+double
+RInt(double x)
+{
+ double s,t;
+ const double one = 1.0;
+ const static double L = 4503599627370496.0E0;
+
+ if (x!=x)
+ return(x);
+ if (copysign(x,one) >= L)
+ return(x);
+ s = copysign(L,x);
+ t = x + s;
+ return (t - s);
+}
+#endif