diff options
Diffstat (limited to 'hw/kdrive/src/kmap.c')
| -rw-r--r-- | hw/kdrive/src/kmap.c | 181 |
1 files changed, 0 insertions, 181 deletions
diff --git a/hw/kdrive/src/kmap.c b/hw/kdrive/src/kmap.c deleted file mode 100644 index bd506996b..000000000 --- a/hw/kdrive/src/kmap.c +++ /dev/null @@ -1,181 +0,0 @@ -/* - * Id: kmap.c,v 1.1 1999/11/02 03:54:46 keithp Exp $ - * - * 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. - */ -/* $RCSId: xc/programs/Xserver/hw/kdrive/kmap.c,v 1.10 2001/07/24 21:26:17 keithp Exp $ */ - -#include <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 (errno %d)\n", - base, bound - base, type, 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 (errno %d)\n", - base, bound - base, type, errno); - } -#endif -} |