diff options
Diffstat (limited to 'hw/xfree86/os-support/sysv/sysv_video.c')
| -rw-r--r-- | hw/xfree86/os-support/sysv/sysv_video.c | 574 |
1 files changed, 173 insertions, 401 deletions
diff --git a/hw/xfree86/os-support/sysv/sysv_video.c b/hw/xfree86/os-support/sysv/sysv_video.c index 7dd1575fc..ab604e95a 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 3.9 1996/12/23 06:51:27 dawes Exp $ */ +/* $XFree86: xc/programs/Xserver/hw/xfree86/os-support/sysv/sysv_video.c,v 3.20 2000/10/28 01:42:29 mvojkovi Exp $ */ /* * Copyright 1990,91 by Thomas Roell, Dinkelscherben, Germany * Copyright 1993 by David Wexelblat <dwex@goblin.org> @@ -23,16 +23,19 @@ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. * */ -/* $Xorg: sysv_video.c,v 1.3 2000/08/17 19:51:33 cpqbld Exp $ */ +/* $XConsortium: sysv_video.c /main/8 1996/10/25 11:38:09 kaleb $ */ #include "X.h" -#include "input.h" -#include "scrnintstr.h" #define _NEED_SYSI86 #include "xf86.h" #include "xf86Priv.h" #include "xf86_OSlib.h" +#include "xf86OSpriv.h" + +#ifndef MAP_FAILED +#define MAP_FAILED ((void *)-1) +#endif #ifndef SI86IOPL #define SET_IOPL() sysi86(SI86V86,V86SC_IOPL,PS_IOPL) @@ -46,53 +49,96 @@ /* Video Memory Mapping section */ /***************************************************************************/ -struct kd_memloc MapDSC[MAXSCREENS][NUM_REGIONS]; -pointer AllocAddress[MAXSCREENS][NUM_REGIONS]; -#ifndef SVR4 -static int mmapFd = -2; -#endif -#if 0 -/* inserted for DGA support Tue Dec 5 21:33:00 MET 1995 mr */ -#if defined(SVR4) || defined(HAS_SVR3_MMAPDRV) -static struct xf86memMap { - int offset; - int memSize; -} xf86memMaps[MAXSCREENS]; +/* + * XXX Support for SVR3 will need to be reworked if needed. In particular + * the Region parameter is no longer passed, and will need to be dealt + * with internally if required. + * OK, i'll rework that thing ... (clean it up a lot) + * SVR3 Support only with SVR3_MMAPDRV (mr) + * + */ + +#ifdef HAS_SVR3_MMAPDRV +#ifndef MMAP_DEBUG +#define MMAP_DEBUG 3 #endif + +struct kd_memloc MapDSC; +int mmapFd = -2; + +static int +mmapStat(pointer Base, unsigned long Size) { + + int nmmreg,i=0,region=-1; + mmapinfo_t *ibuf; + + nmmreg = ioctl(mmapFd, GETNMMREG); + + if(nmmreg <= 0) + xf86MsgVerb(X_INFO, MMAP_DEBUG, + "\nNo physical memory mapped currently.\n\n"); + else { + if((ibuf = (mmapinfo_t *)malloc(nmmreg*sizeof(mmapinfo_t))) == NULL) + xf86Msg(X_WARNING, + "Couldn't allocate memory 4 mmapinfo_t\n"); + else { + if(ioctl(mmapFd, GETMMREG, ibuf) != -1) + { + xf86MsgVerb(X_INFO, MMAP_DEBUG, + "# mmapStat: [Size=%x,Base=%x]\n", Size, Base); + xf86MsgVerb(X_INFO, MMAP_DEBUG, + "# Physical Address Size Reference Count\n"); + for(i = 0; i < nmmreg; i++) { + xf86MsgVerb(X_INFO, MMAP_DEBUG, + "%-4d 0x%08X %5dk %5d ", + i, ibuf[i].physaddr, ibuf[i].length/1024, ibuf[i].refcnt); + if (ibuf[i].physaddr == Base || ibuf[i].length == Size ) { + xf86MsgVerb(X_INFO, MMAP_DEBUG,"MATCH !!!"); + if (region==-1) region=i; + } + xf86ErrorFVerb(MMAP_DEBUG, "\n"); + } + xf86ErrorFVerb(MMAP_DEBUG, "\n"); + } + free(ibuf); + } + } + if (region == -1 && nmmreg > 0) region=region * i; + return(region); +} #endif -Bool xf86LinearVidMem() + +static Bool +linearVidMem() { #ifdef SVR4 return TRUE; -#else -#ifdef HAS_SVR3_MMAPDRV - if(mmapFd >= 0) - { - return TRUE; - } +#elif defined(HAS_SVR3_MMAPDRV) + xf86MsgVerb(X_INFO, MMAP_DEBUG, + "# xf86LinearVidMem: MMAP 2.2.2 called\n"); + + if(mmapFd >= 0) return TRUE; + if ((mmapFd = open("/dev/mmap", O_RDWR)) != -1) { if(ioctl(mmapFd, GETVERSION) < 0x0222) { - ErrorF("xf86LinearVidMem: MMAP 2.2.2 or above required\n"); - ErrorF(" linear memory access disabled\n"); + xf86Msg(X_WARNING, + "xf86LinearVidMem: MMAP 2.2.2 or above required\n"); + xf86ErrorF("\tlinear memory access disabled\n"); return FALSE; } return TRUE; } - ErrorF("xf86LinearVidMem: failed to open /dev/mmap (%s)\n", - strerror(errno)); - ErrorF(" linear memory access disabled\n"); -#endif + xf86Msg(X_WARNING, "xf86LinearVidMem: failed to open /dev/mmap (%s)\n", + strerror(errno)); + xf86ErrorF("\tlinear memory access disabled\n"); return FALSE; #endif } -pointer xf86MapVidMem(ScreenNum, Region, Base, Size) -int ScreenNum; -int Region; -pointer Base; -unsigned long Size; +static pointer +mapVidMem(int ScreenNum, unsigned long Base, unsigned long Size, int flags) { pointer base; int fd; @@ -103,47 +149,40 @@ unsigned long Size; FatalError("xf86MapVidMem: failed to open %s (%s)\n", DEV_MEM, strerror(errno)); } - base = (pointer)mmap((caddr_t)0, Size, PROT_READ|PROT_WRITE, - MAP_SHARED, fd, (off_t)Base); + base = mmap((caddr_t)0, Size, PROT_READ|PROT_WRITE, + MAP_SHARED, fd, (off_t)Base); close(fd); - if ((long)base == -1) + if (base == MAP_FAILED) { FatalError("%s: Could not mmap framebuffer [s=%x,a=%x] (%s)\n", "xf86MapVidMem", Size, Base, strerror(errno)); } #else /* SVR4 */ #ifdef HAS_SVR3_MMAPDRV - if (mmapFd == -2) - { - mmapFd = open("/dev/mmap", O_RDWR); - } -#endif - if (mmapFd >= 0) - { - /* To force the MMAP driver to provide the address */ - base = (pointer)0; - } - else + + xf86MsgVerb(X_INFO, MMAP_DEBUG, "# xf86MapVidMem: MMAP 2.2.2 called\n"); + xf86MsgVerb(X_INFO, MMAP_DEBUG, + "MMAP_VERSION: 0x%x\n",ioctl(mmapFd, GETVERSION)); + if (ioctl(mmapFd, GETVERSION) == -1) { - AllocAddress[ScreenNum][Region] = (pointer)xalloc(Size + 0x1000); - if (AllocAddress[ScreenNum][Region] == (pointer)0) - { - FatalError("xf86MapVidMem: can't alloc framebuffer space\n"); - /* NOTREACHED */ - } - base = (pointer)(((unsigned int)AllocAddress[ScreenNum][Region] - & ~0xFFF) + 0x1000); + xf86LinearVidMem(); } - MapDSC[ScreenNum][Region].vaddr = (char *)base; - MapDSC[ScreenNum][Region].physaddr = (char *)Base; - MapDSC[ScreenNum][Region].length = Size; - MapDSC[ScreenNum][Region].ioflg = 1; - -#ifdef HAS_SVR3_MMAPDRV + xf86MsgVerb(X_INFO, MMAP_DEBUG, + "MMAP_VERSION: 0x%x\n",ioctl(mmapFd, GETVERSION)); + xf86MsgVerb(X_INFO, MMAP_DEBUG, + "xf86MapVidMem: Screen: %d\n", ScreenNum); + mmapStat(Base,Size); + /* To force the MMAP driver to provide the address */ + base = (pointer)0; + xf86MsgVerb(X_INFO, MMAP_DEBUG, + "xf86MapVidMem: [s=%x,a=%x]\n", Size, Base); + MapDSC.vaddr = (char *)base; + MapDSC.physaddr = (char *)Base; + MapDSC.length = Size; + MapDSC.ioflg = 1; if(mmapFd >= 0) { - if((base = (pointer)ioctl(mmapFd, MAP, - &(MapDSC[ScreenNum][Region]))) == (pointer)-1) + if((base = (pointer)ioctl(mmapFd, MAP, &MapDSC)) == (pointer)-1) { FatalError("%s: Could not mmap framebuffer [s=%x,a=%x] (%s)\n", "xf86MapVidMem", Size, Base, strerror(errno)); @@ -151,152 +190,106 @@ unsigned long Size; } /* Next time we want the same address! */ - MapDSC[ScreenNum][Region].vaddr = (char *)base; -#if 0 -/* inserted for DGA support Tue Dec 5 21:33:00 MET 1995 mr */ - xf86memMaps[ScreenNum].offset = (int) Base; - xf86memMaps[ScreenNum].memSize = Size; -#endif - return((pointer)base); + MapDSC.vaddr = (char *)base; } -#endif - if (ioctl(xf86Info.consoleFd, KDMAPDISP, - &(MapDSC[ScreenNum][Region])) < 0) - { - FatalError("xf86MapVidMem: Failed to map video mem (%x,%x) (%s)\n", - Base, Size, strerror(errno)); - /* NOTREACHED */ - } -#endif /* SVR4 */ -#if 0 - xf86memMaps[ScreenNum].offset = (int) Base; - xf86memMaps[ScreenNum].memSize = Size; -#endif - return((pointer)base); -} -#if 0 -/* inserted for DGA support Tue Dec 5 21:33:00 MET 1995 mr */ -#if defined(SVR4) || defined(HAS_SVR3_MMAPDRV) -void xf86GetVidMemData(ScreenNum, Base, Size) -int ScreenNum; -int *Base; -int *Size; -{ - *Base = xf86memMaps[ScreenNum].offset; - *Size = xf86memMaps[ScreenNum].memSize; + xf86MsgVerb(X_INFO, MMAP_DEBUG, + "MapDSC.vaddr : 0x%x\n", MapDSC.vaddr); + xf86MsgVerb(X_INFO, MMAP_DEBUG, + "MapDSC.physaddr: 0x%x\n", MapDSC.physaddr); + xf86MsgVerb(X_INFO, MMAP_DEBUG, + "MapDSC.length : %d\n", MapDSC.length); + mmapStat(Base,Size); + xf86MsgVerb(X_INFO, MMAP_DEBUG, + "xf86MapVidMem: [s=%x,a=%x,b=%x]\n", Size, Base, base); + xf86MsgVerb(X_INFO, MMAP_DEBUG, + "xf86MapVidMem: SUCCEED Mapping FrameBuffer \n"); +#endif /* HAS_SVR3_MMAPDRV */ +#endif /* SVR4 */ + return(base); } -#endif -#endif /* ARGSUSED */ -void xf86UnMapVidMem(ScreenNum, Region, Base, Size) -int ScreenNum; -int Region; -pointer Base; -unsigned long Size; +static void +unmapVidMem(int ScreenNum, pointer Base, unsigned long Size) { #if defined (SVR4) munmap(Base, Size); #else /* SVR4 */ #ifdef HAS_SVR3_MMAPDRV - if(mmapFd >= 0) - { - ioctl(mmapFd, UNMAPRM, MapDSC[ScreenNum][Region].vaddr); - return; - } -#endif - /* XXXX This is a problem because it unmaps all regions */ - ioctl(xf86Info.consoleFd, KDUNMAPDISP, 0); - xfree(AllocAddress[ScreenNum][Region]); + xf86MsgVerb(X_INFO, MMAP_DEBUG, + "# xf86UnMapVidMem: UNMapping FrameBuffer\n"); + mmapStat(Base,Size); + ioctl(mmapFd, UNMAPRM , Base); + mmapStat(Base,Size); + xf86MsgVerb(X_INFO, MMAP_DEBUG, + "# xf86UnMapVidMem: Screen: %d [v=%x]\n", ScreenNum, Base); +#endif /* HAS_SVR3_MMAPDRV */ #endif /* SVR4 */ + return; } -/* ARGSUSED */ -void xf86MapDisplay(ScreenNum, Region) -int ScreenNum; -int Region; +#if defined(SVR4) && defined(i386) && !defined(sun) +/* + * For some SVR4 versions, a 32-bit read is done for the first location + * in each page when the page is first mapped. If this is done while + * memory access is enabled for regions that have read side-effects, + * this can cause unexpected results, including lockups on some hardware. + * This function is called to make sure each page is mapped while it is + * safe to do so. + */ + +/* + * XXX Should get this the correct way (see os/xalloc.c), but since this is + * for one platform I'll be lazy. + */ +#define X_PAGE_SIZE 4096 + +static void +readSideEffects(int ScreenNum, pointer Base, unsigned long Size) { -#if !defined(SVR4) -#ifdef HAS_SVR3_MMAPDRV - if(mmapFd >= 0) - { - ioctl(mmapFd, MAP, &(MapDSC[ScreenNum][Region])); - return; - } -#endif - ioctl(xf86Info.consoleFd, KDMAPDISP, &(MapDSC[ScreenNum][Region])); -#endif /* SVR4 */ - return; + unsigned long base, end, addr; + CARD32 val; + + base = (unsigned long)Base; + end = base + Size; + + for (addr = base; addr < end; addr += X_PAGE_SIZE) + val = *(volatile CARD32 *)addr; } +#endif -/* ARGSUSED */ -void xf86UnMapDisplay(ScreenNum, Region) -int ScreenNum; -int Region; +void +xf86OSInitVidMem(VidMemInfoPtr pVidMem) { -#if !defined(SVR4) -#ifdef HAS_SVR3_MMAPDRV - if(mmapFd > 0) - { - ioctl(mmapFd, UNMAP, MapDSC[ScreenNum][Region].vaddr); - return; - } + pVidMem->linearSupported = linearVidMem(); + pVidMem->mapMem = mapVidMem; + pVidMem->unmapMem = unmapVidMem; +#if defined(SVR4) && defined(i386) && !defined(sun) + pVidMem->readSideEffects = readSideEffects; #endif - ioctl(xf86Info.consoleFd, KDUNMAPDISP, 0); -#endif /* SVR4 */ - return; + pVidMem->initialised = TRUE; } - + /***************************************************************************/ /* I/O Permissions section */ /***************************************************************************/ -#define ALWAYS_USE_EXTENDED -#ifdef ALWAYS_USE_EXTENDED - -static Bool ScreenEnabled[MAXSCREENS]; static Bool ExtendedEnabled = FALSE; static Bool InitDone = FALSE; void -xf86ClearIOPortList(ScreenNum) -int ScreenNum; -{ - if (!InitDone) - { - int i; - for (i = 0; i < MAXSCREENS; i++) - ScreenEnabled[i] = FALSE; - InitDone = TRUE; - } - return; -} - -void -xf86AddIOPorts(ScreenNum, NumPorts, Ports) -int ScreenNum; -int NumPorts; -unsigned *Ports; -{ - return; -} - -void -xf86EnableIOPorts(ScreenNum) -int ScreenNum; +xf86EnableIO() { int i; - ScreenEnabled[ScreenNum] = TRUE; - if (ExtendedEnabled) return; if (SET_IOPL() < 0) { - FatalError("%s: Failed to set IOPL for extended I/O\n", - "xf86EnableIOPorts"); + FatalError( + "xf86EnableIO: Failed to set IOPL for extended I/O\n"); } ExtendedEnabled = TRUE; @@ -304,245 +297,23 @@ int ScreenNum; } void -xf86DisableIOPorts(ScreenNum) -int ScreenNum; +xf86DisableIO() { - int i; - - ScreenEnabled[ScreenNum] = FALSE; - if (!ExtendedEnabled) return; - for (i = 0; i < MAXSCREENS; i++) - if (ScreenEnabled[i]) - return; - RESET_IOPL(); ExtendedEnabled = FALSE; return; } -#else /* !ALWAYS_USE_EXTENDED */ - -#define DISABLED 0 -#define NON_EXTENDED 1 -#define EXTENDED 2 - -static unsigned *EnabledPorts[MAXSCREENS]; -static int NumEnabledPorts[MAXSCREENS]; -static Bool ScreenEnabled[MAXSCREENS]; -static Bool ExtendedPorts[MAXSCREENS]; -static Bool ExtendedEnabled = FALSE; -static Bool InitDone = FALSE; -static struct kd_disparam OrigParams; - -void xf86ClearIOPortList(ScreenNum) -int ScreenNum; -{ - if (!InitDone) - { - xf86InitPortLists(EnabledPorts, NumEnabledPorts, ScreenEnabled, - ExtendedPorts, MAXSCREENS); - if (ioctl(xf86Info.consoleFd, KDDISPTYPE, &OrigParams) < 0) - { - FatalError("%s: Could not get display parameters\n", - "xf86ClearIOPortList"); - } - InitDone = TRUE; - return; - } - ExtendedPorts[ScreenNum] = FALSE; - if (EnabledPorts[ScreenNum] != (unsigned *)NULL) - xfree(EnabledPorts[ScreenNum]); - EnabledPorts[ScreenNum] = (unsigned *)NULL; - NumEnabledPorts[ScreenNum] = 0; -} - -void xf86AddIOPorts(ScreenNum, NumPorts, Ports) -int ScreenNum; -int NumPorts; -unsigned *Ports; -{ - int i; - - if (!InitDone) - { - FatalError("xf86AddIOPorts: I/O control lists not initialised\n"); - } - EnabledPorts[ScreenNum] = (unsigned *)xrealloc(EnabledPorts[ScreenNum], - (NumEnabledPorts[ScreenNum]+NumPorts)*sizeof(unsigned)); - for (i = 0; i < NumPorts; i++) - { - EnabledPorts[ScreenNum][NumEnabledPorts[ScreenNum] + i] = - Ports[i]; - if (Ports[i] > 0x3FF) - ExtendedPorts[ScreenNum] = TRUE; - } - NumEnabledPorts[ScreenNum] += NumPorts; -} - -void xf86EnableIOPorts(ScreenNum) -int ScreenNum; -{ - struct kd_disparam param; - int i, j; - - if (ScreenEnabled[ScreenNum]) - return; - - for (i = 0; i < MAXSCREENS; i++) - { - if (ExtendedPorts[i] && (ScreenEnabled[i] || i == ScreenNum)) - { - if (SET_IOPL() < 0) - { - FatalError("%s: Failed to set IOPL for extended I/O\n", - "xf86EnableIOPorts"); - } - ExtendedEnabled = TRUE; - break; - } - } - /* If extended I/O was used, but isn't any more */ - if (ExtendedEnabled && i == MAXSCREENS) - { - RESET_IOPL(); - ExtendedEnabled = FALSE; - } - /* - * Turn on non-extended ports even when using extended I/O - * so they are there if extended I/O gets turned off when it's no - * longer needed. - */ - if (ioctl(xf86Info.consoleFd, KDDISPTYPE, ¶m) < 0) - { - FatalError("%s: Could not get display parameters\n", - "xf86EnableIOPorts"); - } - for (i = 0; i < NumEnabledPorts[ScreenNum]; i++) - { - unsigned port = EnabledPorts[ScreenNum][i]; - - if (port > 0x3FF) - continue; - - if (!xf86CheckPorts(port, EnabledPorts, NumEnabledPorts, - ScreenEnabled, MAXSCREENS)) - { - continue; - } - for (j=0; j < MKDIOADDR; j++) - { - if (param.ioaddr[j] == port) - { - break; - } - } - if (j == MKDIOADDR) - { - if (ioctl(xf86Info.consoleFd, KDADDIO, port) < 0) - { - FatalError("%s: Failed to enable port 0x%x\n", - "xf86EnableIOPorts", port); - } - } - } - if (ioctl(xf86Info.consoleFd, KDENABIO, 0) < 0) - { - FatalError("xf86EnableIOPorts: I/O port enable failed (%s)\n", - strerror(errno)); - } - ScreenEnabled[ScreenNum] = TRUE; - return; -} - -void xf86DisableIOPorts(ScreenNum) -int ScreenNum; -{ - struct kd_disparam param; - int i, j; - - if (!ScreenEnabled[ScreenNum]) - return; - - ScreenEnabled[ScreenNum] = FALSE; - for (i = 0; i < MAXSCREENS; i++) - { - if (ScreenEnabled[i] && ExtendedPorts[i]) - break; - } - if (ExtendedEnabled && i == MAXSCREENS) - { - RESET_IOPL(); - ExtendedEnabled = FALSE; - } - /* Turn off I/O before changing the access list */ - ioctl(xf86Info.consoleFd, KDDISABIO, 0); - if (ioctl(xf86Info.consoleFd, KDDISPTYPE, ¶m) < 0) - { - ErrorF("%s: Could not get display parameters\n", - "xf86DisableIOPorts"); - return; - } - - for (i=0; i < MKDIOADDR; i++) - { - /* 0 indicates end of list */ - if (param.ioaddr[i] == 0) - { - break; - } - if (!xf86CheckPorts(param.ioaddr[i], EnabledPorts, - NumEnabledPorts, ScreenEnabled, MAXSCREENS)) - { - continue; - } - for (j=0; j < MKDIOADDR; j++) - { - if (param.ioaddr[i] == OrigParams.ioaddr[j]) - { - /* - * Port was one of the original ones; don't - * touch it. - */ - break; - } - } - if (j == MKDIOADDR) - { - /* - * We added this port, so remove it. - */ - ioctl(xf86Info.consoleFd, KDDELIO, param.ioaddr[i]); - } - } - /* If any other screens are enabled, turn I/O back on */ - for (i = 0; i < MAXSCREENS; i++) - { - if (ScreenEnabled[i]) - { - ioctl(xf86Info.consoleFd, KDENABIO, 0); - break; - } - } - return; -} -#endif /* ALWAYS_USE_EXTENDED */ - -void xf86DisableIOPrivs() -{ - if (ExtendedEnabled) - RESET_IOPL(); - return; -} - /***************************************************************************/ /* Interrupt Handling section */ /***************************************************************************/ -Bool xf86DisableInterrupts() +Bool +xf86DisableInterrupts() { if (!ExtendedEnabled) { @@ -565,7 +336,8 @@ Bool xf86DisableInterrupts() return(TRUE); } -void xf86EnableInterrupts() +void +xf86EnableInterrupts() { if (!ExtendedEnabled) { |