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authormarha <marha@users.sourceforge.net>2009-06-28 22:07:26 +0000
committermarha <marha@users.sourceforge.net>2009-06-28 22:07:26 +0000
commit3562e78743202e43aec8727005182a2558117eca (patch)
tree8f9113a77d12470c5c851a2a8e4cb02e89df7d43 /xorg-server/hw/kdrive/src/kmap.c
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Checked in the following released items:
xkeyboard-config-1.4.tar.gz ttf-bitstream-vera-1.10.tar.gz font-alias-1.0.1.tar.gz font-sun-misc-1.0.0.tar.gz font-sun-misc-1.0.0.tar.gz font-sony-misc-1.0.0.tar.gz font-schumacher-misc-1.0.0.tar.gz font-mutt-misc-1.0.0.tar.gz font-misc-misc-1.0.0.tar.gz font-misc-meltho-1.0.0.tar.gz font-micro-misc-1.0.0.tar.gz font-jis-misc-1.0.0.tar.gz font-isas-misc-1.0.0.tar.gz font-dec-misc-1.0.0.tar.gz font-daewoo-misc-1.0.0.tar.gz font-cursor-misc-1.0.0.tar.gz font-arabic-misc-1.0.0.tar.gz font-winitzki-cyrillic-1.0.0.tar.gz font-misc-cyrillic-1.0.0.tar.gz font-cronyx-cyrillic-1.0.0.tar.gz font-screen-cyrillic-1.0.1.tar.gz font-xfree86-type1-1.0.1.tar.gz font-adobe-utopia-type1-1.0.1.tar.gz font-ibm-type1-1.0.0.tar.gz font-bitstream-type1-1.0.0.tar.gz font-bitstream-speedo-1.0.0.tar.gz font-bh-ttf-1.0.0.tar.gz font-bh-type1-1.0.0.tar.gz font-bitstream-100dpi-1.0.0.tar.gz font-bh-lucidatypewriter-100dpi-1.0.0.tar.gz font-bh-100dpi-1.0.0.tar.gz font-adobe-utopia-100dpi-1.0.1.tar.gz font-adobe-100dpi-1.0.0.tar.gz font-util-1.0.1.tar.gz font-bitstream-75dpi-1.0.0.tar.gz font-bh-lucidatypewriter-75dpi-1.0.0.tar.gz font-adobe-utopia-75dpi-1.0.1.tar.gz font-bh-75dpi-1.0.0.tar.gz bdftopcf-1.0.1.tar.gz font-adobe-75dpi-1.0.0.tar.gz mkfontscale-1.0.6.tar.gz openssl-0.9.8k.tar.gz bigreqsproto-1.0.2.tar.gz xtrans-1.2.2.tar.gz resourceproto-1.0.2.tar.gz inputproto-1.4.4.tar.gz compositeproto-0.4.tar.gz damageproto-1.1.0.tar.gz zlib-1.2.3.tar.gz xkbcomp-1.0.5.tar.gz freetype-2.3.9.tar.gz pthreads-w32-2-8-0-release.tar.gz pixman-0.12.0.tar.gz kbproto-1.0.3.tar.gz evieext-1.0.2.tar.gz fixesproto-4.0.tar.gz recordproto-1.13.2.tar.gz randrproto-1.2.2.tar.gz scrnsaverproto-1.1.0.tar.gz renderproto-0.9.3.tar.gz xcmiscproto-1.1.2.tar.gz fontsproto-2.0.2.tar.gz xextproto-7.0.3.tar.gz xproto-7.0.14.tar.gz libXdmcp-1.0.2.tar.gz libxkbfile-1.0.5.tar.gz libfontenc-1.0.4.tar.gz libXfont-1.3.4.tar.gz libX11-1.1.5.tar.gz libXau-1.0.4.tar.gz libxcb-1.1.tar.gz xorg-server-1.5.3.tar.gz
Diffstat (limited to 'xorg-server/hw/kdrive/src/kmap.c')
-rw-r--r--xorg-server/hw/kdrive/src/kmap.c178
1 files changed, 178 insertions, 0 deletions
diff --git a/xorg-server/hw/kdrive/src/kmap.c b/xorg-server/hw/kdrive/src/kmap.c
new file mode 100644
index 000000000..ce1e28ae4
--- /dev/null
+++ b/xorg-server/hw/kdrive/src/kmap.c
@@ -0,0 +1,178 @@
+/*
+ * Copyright © 1999 Keith Packard
+ *
+ * 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 Keith Packard not be used in
+ * advertising or publicity pertaining to distribution of the software without
+ * specific, written prior permission. Keith Packard makes no
+ * representations about the suitability of this software for any purpose. It
+ * is provided "as is" without express or implied warranty.
+ *
+ * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL KEITH PACKARD 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.
+ */
+
+#include <kdrive-config.h>
+#include "kdrive.h"
+
+#include <errno.h>
+#include <unistd.h>
+#include <sys/mman.h>
+#ifdef HAVE_ASM_MTRR_H
+#include <asm/mtrr.h>
+#endif
+
+#include <sys/ioctl.h>
+
+void *
+KdMapDevice (CARD32 addr, CARD32 size)
+{
+#ifdef WINDOWS
+ void *a;
+ void *d;
+
+ d = VirtualAlloc (NULL, size, MEM_RESERVE, PAGE_NOACCESS);
+ if (!d)
+ return NULL;
+ DRAW_DEBUG ((DEBUG_S3INIT, "Virtual address of 0x%x is 0x%x", addr, d));
+ a = VirtualCopyAddr (addr);
+ DRAW_DEBUG ((DEBUG_S3INIT, "Translated address is 0x%x", a));
+ if (!VirtualCopy (d, a, size,
+ PAGE_READWRITE|PAGE_NOCACHE|PAGE_PHYSICAL))
+ {
+ DRAW_DEBUG ((DEBUG_FAILURE, "VirtualCopy failed %d",
+ GetLastError ()));
+ return NULL;
+ }
+ DRAW_DEBUG ((DEBUG_S3INIT, "Device mapped successfully"));
+ return d;
+#endif
+#ifdef linux
+ void *a;
+ int fd;
+
+#ifdef __arm__
+ fd = open ("/dev/mem", O_RDWR|O_SYNC);
+#else
+ fd = open ("/dev/mem", O_RDWR);
+#endif
+ if (fd < 0)
+ FatalError ("KdMapDevice: failed to open /dev/mem (%s)\n",
+ strerror (errno));
+
+ a = mmap ((caddr_t) 0, size, PROT_READ|PROT_WRITE, MAP_SHARED, fd, addr);
+ close (fd);
+ if ((long) a == -1)
+ FatalError ("KdMapDevice: failed to map frame buffer (%s)\n",
+ strerror (errno));
+ return a;
+#endif
+#ifdef VXWORKS
+ return (void *) addr;
+#endif
+}
+
+void
+KdUnmapDevice (void *addr, CARD32 size)
+{
+#ifdef WINDOWS
+ VirtualFree (addr, size, MEM_DECOMMIT);
+ VirtualFree (addr, 0, MEM_RELEASE);
+#endif
+#ifdef linux
+ munmap (addr, size);
+#endif
+#ifdef VXWORKS
+ ;
+#endif
+}
+
+#ifdef HAVE_ASM_MTRR_H
+static int mtrr;
+#endif
+
+void
+KdSetMappedMode (CARD32 addr, CARD32 size, int mode)
+{
+#ifdef HAVE_ASM_MTRR_H
+ struct mtrr_sentry sentry;
+ unsigned long base, bound;
+ unsigned int type = MTRR_TYPE_WRBACK;
+
+ if (addr < 0x100000)
+ return;
+ if (!mtrr)
+ mtrr = open ("/proc/mtrr", 2);
+ if (mtrr > 0)
+ {
+ unsigned long nsize;
+ base = addr & ~((1<<22)-1);
+ bound = ((addr + size) + ((1<<22) - 1)) & ~((1<<22) - 1);
+ nsize = 1;
+ while (nsize < (bound - base))
+ nsize <<= 1;
+ switch (mode) {
+ case KD_MAPPED_MODE_REGISTERS:
+ type = MTRR_TYPE_UNCACHABLE;
+ break;
+ case KD_MAPPED_MODE_FRAMEBUFFER:
+ type = MTRR_TYPE_WRCOMB;
+ break;
+ }
+ sentry.base = base;
+ sentry.size = nsize;
+ sentry.type = type;
+
+ if (ioctl (mtrr, MTRRIOC_ADD_ENTRY, &sentry) < 0)
+ ErrorF ("MTRRIOC_ADD_ENTRY failed 0x%x 0x%x %d (%s)\n",
+ base, bound - base, type, strerror(errno));
+ }
+#endif
+}
+
+void
+KdResetMappedMode (CARD32 addr, CARD32 size, int mode)
+{
+#ifdef HAVE_ASM_MTRR_H
+ struct mtrr_sentry sentry;
+ unsigned long base, bound;
+ unsigned int type = MTRR_TYPE_WRBACK;
+
+ if (addr < 0x100000)
+ return;
+ if (!mtrr)
+ mtrr = open ("/proc/mtrr", 2);
+ if (mtrr > 0)
+ {
+ unsigned long nsize;
+ base = addr & ~((1<<22)-1);
+ bound = ((addr + size) + ((1<<22) - 1)) & ~((1<<22) - 1);
+ nsize = 1;
+ while (nsize < (bound - base))
+ nsize <<= 1;
+ switch (mode) {
+ case KD_MAPPED_MODE_REGISTERS:
+ type = MTRR_TYPE_UNCACHABLE;
+ break;
+ case KD_MAPPED_MODE_FRAMEBUFFER:
+ type = MTRR_TYPE_WRCOMB;
+ break;
+ }
+ sentry.base = base;
+ sentry.size = nsize;
+ sentry.type = type;
+
+ if (ioctl (mtrr, MTRRIOC_DEL_ENTRY, &sentry) < 0)
+ ErrorF ("MTRRIOC_DEL_ENTRY failed 0x%x 0x%x %d (%s)\n",
+ base, bound - base, type, strerror(errno));
+ }
+#endif
+}