diff options
Diffstat (limited to 'hw/xfree86/os-support/sysv/sysv_video.c')
| -rw-r--r-- | hw/xfree86/os-support/sysv/sysv_video.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/hw/xfree86/os-support/sysv/sysv_video.c b/hw/xfree86/os-support/sysv/sysv_video.c index ab604e95a..c0460f524 100644 --- a/hw/xfree86/os-support/sysv/sysv_video.c +++ b/hw/xfree86/os-support/sysv/sysv_video.c @@ -1,4 +1,4 @@ -/* $XFree86: xc/programs/Xserver/hw/xfree86/os-support/sysv/sysv_video.c,v 3.20 2000/10/28 01:42:29 mvojkovi Exp $ */ +/* $XFree86: xc/programs/Xserver/hw/xfree86/os-support/sysv/sysv_video.c,v 3.21 2003/03/14 13:46:08 tsi Exp $ */ /* * Copyright 1990,91 by Thomas Roell, Dinkelscherben, Germany * Copyright 1993 by David Wexelblat <dwex@goblin.org> @@ -144,13 +144,16 @@ mapVidMem(int ScreenNum, unsigned long Base, unsigned long Size, int flags) int fd; #if defined(SVR4) - if ((fd = open(DEV_MEM, O_RDWR)) < 0) + fd = open(DEV_MEM, (flags & VIDMEM_READONLY) ? O_RDONLY : O_RDWR); + if (fd < 0) { FatalError("xf86MapVidMem: failed to open %s (%s)\n", DEV_MEM, strerror(errno)); } - base = mmap((caddr_t)0, Size, PROT_READ|PROT_WRITE, - MAP_SHARED, fd, (off_t)Base); + base = mmap((caddr_t)0, Size, + (flags & VIDMEM_READONLY) ? + PROT_READ : (PROT_READ | PROT_WRITE), + MAP_SHARED, fd, (off_t)Base); close(fd); if (base == MAP_FAILED) { |