From c99b7ba27942230458a127e9925d073ac75466af Mon Sep 17 00:00:00 2001
From: rpm-build <rpm-build>
Date: Fri, 26 Aug 2022 11:09:12 +0000
Subject: [PATCH] sw

---
 configure                               |  24 +++
 configure.ac                            |   9 +
 hw/xfree86/common/compiler.h            |  24 ++-
 hw/xfree86/dri/dri.c                    |   2 +-
 hw/xfree86/dri/sarea.h                  |   2 +-
 hw/xfree86/os-support/bsd/Makefile.am   |   6 +
 hw/xfree86/os-support/bsd/Makefile.in   |  24 ++-
 hw/xfree86/os-support/bsd/sw_64_video.c | 234 ++++++++++++++++++++++++
 hw/xfree86/os-support/linux/lnx_video.c |   4 +-
 hw/xfree86/os-support/meson.build       |   2 +
 hw/xfree86/os-support/misc/SlowBcopy.c  |   4 +-
 include/do-not-use-config.h.in          |   3 +
 include/xorg-config.h.in                |   3 +
 include/xorg-config.h.meson.in          |   3 +
 xkb/xkbInit.c                           |   2 +-
 15 files changed, 322 insertions(+), 24 deletions(-)
 create mode 100644 hw/xfree86/os-support/bsd/sw_64_video.c

diff --git a/configure b/configure
index 7e53cbd..009e48a 100755
--- a/configure
+++ b/configure
@@ -1055,6 +1055,8 @@ I386_VIDEO_FALSE
 I386_VIDEO_TRUE
 ARM_VIDEO_FALSE
 ARM_VIDEO_TRUE
+SW_64_VIDEO_FALSE
+SW_64_VIDEO_TRUE
 ALPHA_VIDEO_FALSE
 ALPHA_VIDEO_TRUE
 GLX_ARCH_DEFINES
@@ -23208,6 +23210,16 @@ DEFAULT_INT10="x86emu"
 
 
 case $host_cpu in
+  sw_64*)
+	SW_64_VIDEO=yes
+	case $host_os in
+	        *freebsd*)	SYS_LIBS=-lio ;;
+		*netbsd*)
+$as_echo "#define USE_SW_64_PIO 1" >>confdefs.h
+ ;;
+	esac
+	GLX_ARCH_DEFINES="-D__GLX_ALIGN64 -mieee"
+	;;
   alpha*)
 	ALPHA_VIDEO=yes
 	case $host_os in
@@ -23289,6 +23301,14 @@ else
   ALPHA_VIDEO_FALSE=
 fi
 
+ if test "x$SW_64_VIDEO" = xyes; then
+  SW_64_VIDEO_TRUE=
+  SW_64_VIDEO_FALSE='#'
+else
+  SW_64_VIDEO_TRUE='#'
+  SW_64_VIDEO_FALSE=
+fi
+
  if test "x$ARM_VIDEO" = xyes; then
   ARM_VIDEO_TRUE=
   ARM_VIDEO_FALSE='#'
@@ -32898,6 +32918,10 @@ if test -z "${BSD_KQUEUE_APM_TRUE}" && test -z "${BSD_KQUEUE_APM_FALSE}"; then
   as_fn_error $? "conditional \"BSD_KQUEUE_APM\" was never defined.
 Usually this means the macro was only invoked conditionally." "$LINENO" 5
 fi
+if test -z "${SW_64_VIDEO_TRUE}" && test -z "${SW_64_VIDEO_FALSE}"; then
+  as_fn_error $? "conditional \"SW_64_VIDEO\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
 if test -z "${ALPHA_VIDEO_TRUE}" && test -z "${ALPHA_VIDEO_FALSE}"; then
   as_fn_error $? "conditional \"ALPHA_VIDEO\" was never defined.
 Usually this means the macro was only invoked conditionally." "$LINENO" 5
diff --git a/configure.ac b/configure.ac
index 7ba6d05..3a8b759 100644
--- a/configure.ac
+++ b/configure.ac
@@ -258,6 +258,14 @@ DEFAULT_INT10="x86emu"
 dnl Override defaults as needed for specific platforms:
 
 case $host_cpu in
+  sw_64*)
+        SW_64_VIDEO=yes
+        case $host_os in
+                *freebsd*)      SYS_LIBS=-lio ;;
+                *netbsd*)       AC_DEFINE(USE_SW_64_PIO, 1, [NetBSD PIO sw_64 IO]) ;;
+        esac
+        GLX_ARCH_DEFINES="-D__GLX_ALIGN64 -mieee"
+        ;;
   alpha*)
 	ALPHA_VIDEO=yes
 	case $host_os in
@@ -319,6 +327,7 @@ AC_SUBST(GLX_ARCH_DEFINES)
 
 dnl BSD *_video.c selection
 AM_CONDITIONAL(ALPHA_VIDEO, [test "x$ALPHA_VIDEO" = xyes])
+AM_CONDITIONAL(SW_64_VIDEO, [test "x$SW_64_VIDEO" = xyes])
 AM_CONDITIONAL(ARM_VIDEO, [test "x$ARM_VIDEO" = xyes])
 AM_CONDITIONAL(I386_VIDEO, [test "x$I386_VIDEO" = xyes])
 AM_CONDITIONAL(PPC_VIDEO, [test "x$PPC_VIDEO" = xyes])
diff --git a/hw/xfree86/common/compiler.h b/hw/xfree86/common/compiler.h
index 2b2008b..c416d65 100644
--- a/hw/xfree86/common/compiler.h
+++ b/hw/xfree86/common/compiler.h
@@ -99,6 +99,7 @@
 #if !defined(__arm__)
 #if !defined(__sparc__) && !defined(__arm32__) && !defined(__nds32__) \
       && !(defined(__alpha__) && defined(__linux__)) \
+      && !(defined(__sw_64__) && defined(__linux__)) \
       && !(defined(__ia64__) && defined(__linux__)) \
       && !(defined(__mips64) && defined(__linux__)) \
 
@@ -109,7 +110,7 @@ extern _X_EXPORT unsigned int inb(unsigned short);
 extern _X_EXPORT unsigned int inw(unsigned short);
 extern _X_EXPORT unsigned int inl(unsigned short);
 
-#else                           /* __sparc__,  __arm32__, __alpha__, __nds32__ */
+#else                           /* __sparc__,  __arm32__, __alpha__, __sw_64__, __nds32__ */
 extern _X_EXPORT void outb(unsigned long, unsigned char);
 extern _X_EXPORT void outw(unsigned long, unsigned short);
 extern _X_EXPORT void outl(unsigned long, unsigned int);
@@ -129,7 +130,7 @@ extern _X_EXPORT void xf86WriteMmio16Le (void *, unsigned long, unsigned int);
 extern _X_EXPORT void xf86WriteMmio32Be (void *, unsigned long, unsigned int);
 extern _X_EXPORT void xf86WriteMmio32Le (void *, unsigned long, unsigned int);
 #endif                          /* _SUNPRO_C */
-#endif                          /* __sparc__,  __arm32__, __alpha__, __nds32__ */
+#endif                          /* __sparc__,  __arm32__, __alpha__, __sw_64__, __nds32__ */
 #endif                          /* __arm__ */
 
 #endif                          /* NO_INLINE || DO_PROTOTYPES */
@@ -149,6 +150,11 @@ extern _X_EXPORT void xf86WriteMmio32Le (void *, unsigned long, unsigned int);
 #define mem_barrier() __asm__ __volatile__ ("lock; addl $0,0(%%esp)" : : : "memory")
 #endif
 
+#elif defined __sw_64__
+
+#define mem_barrier() __asm__ __volatile__ ("memb" : : : "memory")
+#define write_mem_barrier() __asm__ __volatile__ ("memb" : : : "memory")
+
 #elif defined __alpha__
 
 #define mem_barrier() __asm__ __volatile__ ("mb" : : : "memory")
@@ -213,7 +219,7 @@ extern _X_EXPORT void xf86WriteMmio32Le (void *, unsigned long, unsigned int);
 #endif
 
 #ifdef __GNUC__
-#if defined(__alpha__)
+#if defined(__alpha__) || defined(__sw_64__)
 
 #ifdef __linux__
 /* for Linux on Alpha, we use the LIBC _inx/_outx routines */
@@ -955,7 +961,7 @@ inl(unsigned PORT_SIZE port)
 #define MMIO_IS_BE
 #endif
 
-#ifdef __alpha__
+#if defined __alpha__ || defined __sw_64__
 static inline int
 xf86ReadMmio8(void *Base, unsigned long Offset)
 {
@@ -1068,7 +1074,7 @@ extern _X_EXPORT void xf86SlowBCopyToBus(unsigned char *, unsigned char *, int);
      xf86WriteMmio32(base, offset, (CARD32)(val))
 #endif
 
-#else                           /* !__alpha__ && !__powerpc__ && !__sparc__ */
+#else                           /* !__alpha__ && !__sw_64__ && !__powerpc__ && !__sparc__ */
 
 #define MMIO_IN8(base, offset) \
 	*(volatile CARD8 *)(((CARD8*)(base)) + (offset))
@@ -1083,19 +1089,19 @@ extern _X_EXPORT void xf86SlowBCopyToBus(unsigned char *, unsigned char *, int);
 #define MMIO_OUT32(base, offset, val) \
 	*(volatile CARD32 *)(void *)(((CARD8*)(base)) + (offset)) = (val)
 
-#endif                          /* __alpha__ */
+#endif                          /* __alpha__, __sw_64__ */
 
 /*
  * With Intel, the version in os-support/misc/SlowBcopy.s is used.
  * This avoids port I/O during the copy (which causes problems with
  * some hardware).
  */
-#ifdef __alpha__
+#if defined __alpha__ || defined __sw_64__
 #define slowbcopy_tobus(src,dst,count) xf86SlowBCopyToBus(src,dst,count)
 #define slowbcopy_frombus(src,dst,count) xf86SlowBCopyFromBus(src,dst,count)
-#else                           /* __alpha__ */
+#else                           /* __alpha__, __sw_64__ */
 #define slowbcopy_tobus(src,dst,count) xf86SlowBcopy(src,dst,count)
 #define slowbcopy_frombus(src,dst,count) xf86SlowBcopy(src,dst,count)
-#endif                          /* __alpha__ */
+#endif                          /* __alpha__, __sw_64__ */
 
 #endif                          /* _COMPILER_H */
diff --git a/hw/xfree86/dri/dri.c b/hw/xfree86/dri/dri.c
index 9f70759..091681e 100644
--- a/hw/xfree86/dri/dri.c
+++ b/hw/xfree86/dri/dri.c
@@ -2012,7 +2012,7 @@ DRISpinLockTimeout(drmLock * lock, int val, unsigned long timeout /* in mS */ )
 {
     int count = 10000;
 
-#if !defined(__alpha__) && !defined(__powerpc__)
+#if !defined(__alpha__) && !defined(__powerpc__) && !defined(__sw_64__)
     char ret;
 #else
     int ret;
diff --git a/hw/xfree86/dri/sarea.h b/hw/xfree86/dri/sarea.h
index 1bef242..cd7e416 100644
--- a/hw/xfree86/dri/sarea.h
+++ b/hw/xfree86/dri/sarea.h
@@ -39,7 +39,7 @@
 #include "xf86drm.h"
 
 /* SAREA area needs to be at least a page */
-#if defined(__alpha__)
+#if defined(__alpha__) || defined(__sw_64__)
 #define SAREA_MAX 			0x2000
 #elif defined(__ia64__)
 #define SAREA_MAX			0x10000 /* 64kB */
diff --git a/hw/xfree86/os-support/bsd/Makefile.am b/hw/xfree86/os-support/bsd/Makefile.am
index 66ac838..38fe659 100644
--- a/hw/xfree86/os-support/bsd/Makefile.am
+++ b/hw/xfree86/os-support/bsd/Makefile.am
@@ -29,6 +29,12 @@ ARCH_SOURCES = \
 	alpha_video.c
 endif
 
+if SW_64_VIDEO
+# Cheat here and piggyback other sw_64 bits on SW_64_VIDEO.
+ARCH_SOURCES = \
+	sw_64_video.c
+endif
+
 if ARM_VIDEO
 ARCH_SOURCES = arm_video.c
 endif
diff --git a/hw/xfree86/os-support/bsd/Makefile.in b/hw/xfree86/os-support/bsd/Makefile.in
index 21495a2..ba525eb 100644
--- a/hw/xfree86/os-support/bsd/Makefile.in
+++ b/hw/xfree86/os-support/bsd/Makefile.in
@@ -113,19 +113,20 @@ LTLIBRARIES = $(noinst_LTLIBRARIES)
 libbsd_la_LIBADD =
 am__libbsd_la_SOURCES_DIST = $(srcdir)/../shared/posix_tty.c \
 	$(srcdir)/../shared/sigio.c $(srcdir)/../shared/vidmem.c \
-	bsd_VTsw.c bsd_init.c bsd_bell.c alpha_video.c arm_video.c \
+	bsd_VTsw.c bsd_init.c bsd_bell.c alpha_video.c sw_64_video.c arm_video.c \
 	i386_video.c ppc_video.c sparc64_video.c \
 	$(srcdir)/../shared/ioperm_noop.c \
 	$(srcdir)/../shared/agp_noop.c $(srcdir)/../linux/lnx_agp.c \
 	$(srcdir)/../shared/pm_noop.c $(srcdir)/bsd_apm.c \
 	$(srcdir)/bsd_kqueue_apm.c $(srcdir)/../shared/kmod_noop.c \
 	bsd_kmod.c
-@ALPHA_VIDEO_FALSE@@ARM_VIDEO_FALSE@@I386_VIDEO_FALSE@@PPC_VIDEO_FALSE@@SPARC64_VIDEO_TRUE@am__objects_1 = sparc64_video.lo \
-@ALPHA_VIDEO_FALSE@@ARM_VIDEO_FALSE@@I386_VIDEO_FALSE@@PPC_VIDEO_FALSE@@SPARC64_VIDEO_TRUE@	ioperm_noop.lo
-@ALPHA_VIDEO_FALSE@@ARM_VIDEO_FALSE@@I386_VIDEO_FALSE@@PPC_VIDEO_TRUE@am__objects_1 = ppc_video.lo
-@ALPHA_VIDEO_FALSE@@ARM_VIDEO_FALSE@@I386_VIDEO_TRUE@am__objects_1 = i386_video.lo
-@ALPHA_VIDEO_FALSE@@ARM_VIDEO_TRUE@am__objects_1 = arm_video.lo
-@ALPHA_VIDEO_TRUE@am__objects_1 = alpha_video.lo
+@SW_64_VIDEO_FALSE@@ALPHA_VIDEO_FALSE@@ARM_VIDEO_FALSE@@I386_VIDEO_FALSE@@PPC_VIDEO_FALSE@@SPARC64_VIDEO_TRUE@am__objects_1 = sparc64_video.lo \
+@SW_64_VIDEO_FALSE@@ALPHA_VIDEO_FALSE@@ARM_VIDEO_FALSE@@I386_VIDEO_FALSE@@PPC_VIDEO_FALSE@@SPARC64_VIDEO_TRUE@	ioperm_noop.lo
+@SW_64_VIDEO_FALSE@@ALPHA_VIDEO_FALSE@@ARM_VIDEO_FALSE@@I386_VIDEO_FALSE@@PPC_VIDEO_TRUE@am__objects_1 = ppc_video.lo
+@SW_64_VIDEO_FALSE@@ALPHA_VIDEO_FALSE@@ARM_VIDEO_FALSE@@I386_VIDEO_TRUE@am__objects_1 = i386_video.lo
+@SW_64_VIDEO_FALSE@@ALPHA_VIDEO_FALSE@@ARM_VIDEO_TRUE@am__objects_1 = arm_video.lo
+@SW_64_VIDEO_FALSE@@ALPHA_VIDEO_TRUE@am__objects_1 = alpha_video.lo
+@SW_64_VIDEO_TURE@am__objects_1 = sw_64_video.lo
 @AGP_FALSE@am__objects_2 = agp_noop.lo
 @AGP_TRUE@am__objects_2 = lnx_agp.lo
 @BSD_APM_FALSE@@BSD_KQUEUE_APM_FALSE@am__objects_3 = pm_noop.lo
@@ -157,7 +158,7 @@ DEFAULT_INCLUDES = -I.@am__isrc@ -I$(top_builddir)/include
 depcomp = $(SHELL) $(top_srcdir)/depcomp
 am__maybe_remake_depfiles = depfiles
 am__depfiles_remade = ./$(DEPDIR)/agp_noop.Plo \
-	./$(DEPDIR)/alpha_video.Plo ./$(DEPDIR)/arm_video.Plo \
+	./$(DEPDIR)/alpha_video.Plo ./$(DEPDIR)/sw_64_video.Plo ./$(DEPDIR)/arm_video.Plo \
 	./$(DEPDIR)/bsd_VTsw.Plo ./$(DEPDIR)/bsd_apm.Plo \
 	./$(DEPDIR)/bsd_bell.Plo ./$(DEPDIR)/bsd_init.Plo \
 	./$(DEPDIR)/bsd_kmod.Plo ./$(DEPDIR)/bsd_kqueue_apm.Plo \
@@ -587,6 +588,10 @@ noinst_LTLIBRARIES = libbsd.la
 @ALPHA_VIDEO_TRUE@ARCH_SOURCES = \
 @ALPHA_VIDEO_TRUE@	alpha_video.c
 
+# Cheat here and piggyback other sw_64 bits on SW_64_VIDEO.
+@SW_64_VIDEO_TRUE@ARCH_SOURCES = \
+@SW_64_VIDEO_TRUE@	sw_64_video.c
+
 @ARM_VIDEO_TRUE@ARCH_SOURCES = arm_video.c
 @I386_VIDEO_TRUE@ARCH_SOURCES = i386_video.c
 @PPC_VIDEO_TRUE@ARCH_SOURCES = ppc_video.c
@@ -676,6 +681,7 @@ distclean-compile:
 
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/agp_noop.Plo@am__quote@ # am--include-marker
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/alpha_video.Plo@am__quote@ # am--include-marker
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/sw_64_video.Plo@am__quote@ # am--include-marker
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/arm_video.Plo@am__quote@ # am--include-marker
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/bsd_VTsw.Plo@am__quote@ # am--include-marker
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/bsd_apm.Plo@am__quote@ # am--include-marker
@@ -924,6 +930,7 @@ clean-am: clean-generic clean-libtool clean-noinstLTLIBRARIES \
 distclean: distclean-am
 		-rm -f ./$(DEPDIR)/agp_noop.Plo
 	-rm -f ./$(DEPDIR)/alpha_video.Plo
+	-rm -f ./$(DEPDIR)/sw_64_video.Plo
 	-rm -f ./$(DEPDIR)/arm_video.Plo
 	-rm -f ./$(DEPDIR)/bsd_VTsw.Plo
 	-rm -f ./$(DEPDIR)/bsd_apm.Plo
@@ -988,6 +995,7 @@ installcheck-am:
 maintainer-clean: maintainer-clean-am
 		-rm -f ./$(DEPDIR)/agp_noop.Plo
 	-rm -f ./$(DEPDIR)/alpha_video.Plo
+	-rm -f ./$(DEPDIR)/sw_64_video.Plo
 	-rm -f ./$(DEPDIR)/arm_video.Plo
 	-rm -f ./$(DEPDIR)/bsd_VTsw.Plo
 	-rm -f ./$(DEPDIR)/bsd_apm.Plo
diff --git a/hw/xfree86/os-support/bsd/sw_64_video.c b/hw/xfree86/os-support/bsd/sw_64_video.c
new file mode 100644
index 0000000..7c42435
--- /dev/null
+++ b/hw/xfree86/os-support/bsd/sw_64_video.c
@@ -0,0 +1,234 @@
+/*
+ * Copyright 1992 by Rich Murphey <Rich@Rice.edu>
+ * 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 names of Rich Murphey and David Wexelblat
+ * not be used in advertising or publicity pertaining to distribution of
+ * the software without specific, written prior permission.  Rich Murphey and
+ * David Wexelblat make no representations about the suitability of this
+ * software for any purpose.  It is provided "as is" without express or
+ * implied warranty.
+ *
+ * RICH MURPHEY AND DAVID WEXELBLAT DISCLAIM ALL WARRANTIES WITH REGARD TO
+ * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS, IN NO EVENT SHALL RICH MURPHEY OR 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.
+ *
+ */
+
+#ifdef HAVE_XORG_CONFIG_H
+#include <xorg-config.h>
+#endif
+
+#include <X11/X.h>
+#include "xf86.h"
+#include "xf86Priv.h"
+
+#include <sys/param.h>
+#ifndef __NetBSD__
+#include <sys/sysctl.h>
+#endif
+
+#include "xf86_OSlib.h"
+#include "xf86OSpriv.h"
+
+#if defined(__NetBSD__) && !defined(MAP_FILE)
+#define MAP_FLAGS MAP_SHARED
+#else
+#define MAP_FLAGS (MAP_FILE | MAP_SHARED)
+#endif
+
+#ifndef __NetBSD__
+extern unsigned long dense_base(void);
+#else                           /* __NetBSD__ */
+static struct sw_64_bus_window *abw;
+static int abw_count = -1;
+
+static void
+init_abw(void)
+{
+    if (abw_count < 0) {
+        abw_count = sw_64_bus_getwindows(SW_64_BUS_TYPE_PCI_MEM, &abw);
+        if (abw_count <= 0)
+            FatalError("init_abw: sw_64_bus_getwindows failed\n");
+    }
+}
+
+static unsigned long
+dense_base(void)
+{
+    if (abw_count < 0)
+        init_abw();
+
+    /* XXX check abst_flags for ABST_DENSE just to be safe? */
+    xf86Msg(X_INFO, "dense base = %#lx\n", abw[0].abw_abst.abst_sys_start);     /* XXXX */
+    return abw[0].abw_abst.abst_sys_start;
+}
+
+#endif                          /* __NetBSD__ */
+
+#define BUS_BASE	dense_base()
+
+/***************************************************************************/
+/* Video Memory Mapping section                                            */
+/***************************************************************************/
+
+#ifdef __OpenBSD__
+#define SYSCTL_MSG "\tCheck that you have set 'machdep.allowaperture=1'\n"\
+                  "\tin /etc/sysctl.conf and reboot your machine\n" \
+                  "\trefer to xf86(4) for details"
+#endif
+
+static int devMemFd = -1;
+
+#ifdef HAS_APERTURE_DRV
+#define DEV_APERTURE "/dev/xf86"
+#endif
+
+/*
+ * Check if /dev/mem can be mmap'd.  If it can't print a warning when
+ * "warn" is TRUE.
+ */
+static void
+checkDevMem(Bool warn)
+{
+    static Bool devMemChecked = FALSE;
+    int fd;
+    void *base;
+
+    if (devMemChecked)
+        return;
+    devMemChecked = TRUE;
+
+#ifdef HAS_APERTURE_DRV
+    /* Try the aperture driver first */
+    if ((fd = open(DEV_APERTURE, O_RDWR)) >= 0) {
+        /* Try to map a page at the VGA address */
+        base = mmap((caddr_t) 0, 4096, PROT_READ | PROT_WRITE,
+                    MAP_FLAGS, fd, (off_t) 0xA0000 + BUS_BASE);
+
+        if (base != MAP_FAILED) {
+            munmap((caddr_t) base, 4096);
+            devMemFd = fd;
+            xf86Msg(X_INFO, "checkDevMem: using aperture driver %s\n",
+                    DEV_APERTURE);
+            return;
+        }
+        else {
+            if (warn) {
+                xf86Msg(X_WARNING, "checkDevMem: failed to mmap %s (%s)\n",
+                        DEV_APERTURE, strerror(errno));
+            }
+        }
+    }
+#endif
+    if ((fd = open(DEV_MEM, O_RDWR)) >= 0) {
+        /* Try to map a page at the VGA address */
+        base = mmap((caddr_t) 0, 4096, PROT_READ | PROT_WRITE,
+                    MAP_FLAGS, fd, (off_t) 0xA0000 + BUS_BASE);
+
+        if (base != MAP_FAILED) {
+            munmap((caddr_t) base, 4096);
+            devMemFd = fd;
+            return;
+        }
+        else {
+            if (warn) {
+                xf86Msg(X_WARNING, "checkDevMem: failed to mmap %s (%s)\n",
+                        DEV_MEM, strerror(errno));
+            }
+        }
+    }
+    if (warn) {
+#ifndef HAS_APERTURE_DRV
+        xf86Msg(X_WARNING, "checkDevMem: failed to open/mmap %s (%s)\n",
+                DEV_MEM, strerror(errno));
+#else
+#ifndef __OpenBSD__
+        xf86Msg(X_WARNING, "checkDevMem: failed to open %s and %s\n"
+                "\t(%s)\n", DEV_APERTURE, DEV_MEM, strerror(errno));
+#else                           /* __OpenBSD__ */
+        xf86Msg(X_WARNING, "checkDevMem: failed to open %s and %s\n"
+                "\t(%s)\n%s", DEV_APERTURE, DEV_MEM, strerror(errno),
+                SYSCTL_MSG);
+#endif                          /* __OpenBSD__ */
+#endif
+        xf86ErrorF("\tlinear framebuffer access unavailable\n");
+    }
+    return;
+}
+
+void
+xf86OSInitVidMem(VidMemInfoPtr pVidMem)
+{
+    checkDevMem(TRUE);
+
+    pVidMem->initialised = TRUE;
+}
+
+#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__OpenBSD__)
+
+extern int ioperm(unsigned long from, unsigned long num, int on);
+
+Bool
+xf86EnableIO()
+{
+    if (!ioperm(0, 65536, TRUE))
+        return TRUE;
+    return FALSE;
+}
+
+void
+xf86DisableIO()
+{
+    return;
+}
+
+#endif                          /* __FreeBSD_kernel__ || __OpenBSD__ */
+
+#ifdef USE_SW_64_PIO
+
+Bool
+xf86EnableIO()
+{
+    sw_64_pci_io_enable(1);
+    return TRUE;
+}
+
+void
+xf86DisableIO()
+{
+    sw_64_pci_io_enable(0);
+}
+
+#endif                          /* USE_SW_64_PIO */
+
+extern int readDense8(void *Base, register unsigned long Offset);
+extern int readDense16(void *Base, register unsigned long Offset);
+extern int readDense32(void *Base, register unsigned long Offset);
+extern void
+ writeDense8(int Value, void *Base, register unsigned long Offset);
+extern void
+ writeDense16(int Value, void *Base, register unsigned long Offset);
+extern void
+ writeDense32(int Value, void *Base, register unsigned long Offset);
+
+void (*xf86WriteMmio8) (int Value, void *Base, unsigned long Offset)
+    = writeDense8;
+void (*xf86WriteMmio16) (int Value, void *Base, unsigned long Offset)
+    = writeDense16;
+void (*xf86WriteMmio32) (int Value, void *Base, unsigned long Offset)
+    = writeDense32;
+int (*xf86ReadMmio8) (void *Base, unsigned long Offset)
+    = readDense8;
+int (*xf86ReadMmio16) (void *Base, unsigned long Offset)
+    = readDense16;
+int (*xf86ReadMmio32) (void *Base, unsigned long Offset)
+    = readDense32;
diff --git a/hw/xfree86/os-support/linux/lnx_video.c b/hw/xfree86/os-support/linux/lnx_video.c
index 04e4509..d4d7349 100644
--- a/hw/xfree86/os-support/linux/lnx_video.c
+++ b/hw/xfree86/os-support/linux/lnx_video.c
@@ -111,7 +111,7 @@ hwDisableIO(void)
 }
 
 #elif defined(__i386__) || defined(__x86_64__) || defined(__ia64__) || \
-      defined(__alpha__)
+      defined(__alpha__) || defined(__sw_64__)
 
 static Bool
 hwEnableIO(void)
@@ -121,7 +121,7 @@ hwEnableIO(void)
                strerror(errno));
         return FALSE;
     }
-#if !defined(__alpha__)
+#if !defined(__alpha__) && !defined(__sw_64__)
     /* XXX: this is actually not trapping anything because of iopl(3)
      * above */
     ioperm(0x40, 4, 0);         /* trap access to the timer chip */
diff --git a/hw/xfree86/os-support/meson.build b/hw/xfree86/os-support/meson.build
index b6e5c97..0e2a127 100644
--- a/hw/xfree86/os-support/meson.build
+++ b/hw/xfree86/os-support/meson.build
@@ -100,6 +100,8 @@ elif host_machine.system().endswith('bsd')
         srcs_xorg_os_support += 'shared/ioperm_noop.c'
     elif host_machine.cpu_family() == 'alpha'
         srcs_xorg_os_support += 'bsd/alpha_video.c'
+    elif host_machine.cpu_family() == 'sw_64'
+        srcs_xorg_os_support += 'bsd/sw_64_video.c'
     endif
 
     if host_machine.system() == 'freebsd'
diff --git a/hw/xfree86/os-support/misc/SlowBcopy.c b/hw/xfree86/os-support/misc/SlowBcopy.c
index 9d82c71..a7d9a7b 100644
--- a/hw/xfree86/os-support/misc/SlowBcopy.c
+++ b/hw/xfree86/os-support/misc/SlowBcopy.c
@@ -1,5 +1,5 @@
 /*******************************************************************************
-  for Alpha Linux
+  for Alpha/Sw_64 Linux
 *******************************************************************************/
 
 /*
@@ -55,7 +55,7 @@ xf86SlowBcopy(unsigned char *src, unsigned char *dst, int len)
         *dst++ = *src++;
 }
 
-#ifdef __alpha__
+#if defined __alpha__ || defined __sw_64__
 
 #ifdef __linux__
 
diff --git a/include/do-not-use-config.h.in b/include/do-not-use-config.h.in
index f421c61..f440b84 100644
--- a/include/do-not-use-config.h.in
+++ b/include/do-not-use-config.h.in
@@ -585,6 +585,9 @@
 /* Support UNIX socket connections */
 #undef UNIXCONN
 
+/* NetBSD PIO sw_64 IO */
+#undef USE_SW_64_PIO
+
 /* NetBSD PIO alpha IO */
 #undef USE_ALPHA_PIO
 
diff --git a/include/xorg-config.h.in b/include/xorg-config.h.in
index bf555eb..f40e1ca 100644
--- a/include/xorg-config.h.in
+++ b/include/xorg-config.h.in
@@ -82,6 +82,9 @@
 /* Building vgahw module */
 #undef WITH_VGAHW
 
+/* NetBSD PIO sw_64 IO */
+#undef USE_SW_64_PIO
+
 /* NetBSD PIO alpha IO */
 #undef USE_ALPHA_PIO
 
diff --git a/include/xorg-config.h.meson.in b/include/xorg-config.h.meson.in
index 1e4213f..27365f9 100644
--- a/include/xorg-config.h.meson.in
+++ b/include/xorg-config.h.meson.in
@@ -79,6 +79,9 @@
 /* Building vgahw module */
 #mesondefine WITH_VGAHW
 
+/* NetBSD PIO sw_64 IO */
+#mesondefine USE_SW_64_PIO
+
 /* NetBSD PIO alpha IO */
 #mesondefine USE_ALPHA_PIO
 
diff --git a/xkb/xkbInit.c b/xkb/xkbInit.c
index 9e45b4b..c290fac 100644
--- a/xkb/xkbInit.c
+++ b/xkb/xkbInit.c
@@ -53,7 +53,7 @@ THE USE OR PERFORMANCE OF THIS SOFTWARE.
 
 #define	CREATE_ATOM(s)	MakeAtom(s,sizeof(s)-1,1)
 
-#if defined(__alpha) || defined(__alpha__)
+#if defined(__alpha) || defined(__alpha__) || defined(__sw_64) || defined(__sw_64__)
 #define	LED_COMPOSE	2
 #define LED_CAPS	3
 #define	LED_SCROLL	4
-- 
2.33.0