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Drop hw/xfree86/os-support/lynxos/

Browse Source 
This has never worked in any modular release, clearly no one cares.
This commit is contained in:
Adam Jackson 2008-07-17 10:32:35 -04:00
parent d87f170bd9
commit b9a0cee026
9 changed files with 1 additions and 1282 deletions
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1
configure.ac
View File

@ -1928,7 +1928,6 @@ hw/xfree86/os-support/bus/Makefile
hw/xfree86/os-support/hurd/Makefile
hw/xfree86/os-support/misc/Makefile
hw/xfree86/os-support/linux/Makefile
hw/xfree86/os-support/lynxos/Makefile
hw/xfree86/os-support/sco/Makefile
hw/xfree86/os-support/solaris/Makefile
hw/xfree86/os-support/sysv/Makefile

2
hw/xfree86/os-support/Makefile.am
View File

@ -1,5 +1,5 @@
SUBDIRS = bus @XORG_OS_SUBDIR@ misc $(DRI_SUBDIRS)
DIST_SUBDIRS = bsd bus misc linux lynxos solaris sysv sco usl hurd
DIST_SUBDIRS = bsd bus misc linux solaris sysv sco usl hurd
sdk_HEADERS = xf86_OSproc.h xf86_OSlib.h assyntax.h

8
hw/xfree86/os-support/lynxos/Makefile.am
View File

@ -1,8 +0,0 @@
EXTRA_DIST = \
lynx_init.c \
lynx_mmap.c \
lynx_mouse.c \
lynx_noinline.c \
lynx_ppc.c \
lynx_video.c \
lynx_ppc.S

192
hw/xfree86/os-support/lynxos/lynx_init.c
View File

@ -1,192 +0,0 @@
/*
* Copyright 1993 by Thomas Mueller
*
* 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 Thomas Mueller not be used in
* advertising or publicity pertaining to distribution of the software without
* specific, written prior permission. Thomas Mueller makes no representations
* about the suitability of this software for any purpose. It is provided
* "as is" without express or implied warranty.
*
* THOMAS MUELLER DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL THOMAS MUELLER 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 <X11/Xmd.h>
#include "compiler.h"
#include "xf86.h"
#include "xf86Priv.h"
#include "xf86_OSlib.h"
static int VTnum = -1;
void
xf86OpenConsole()
{
struct vt_mode VT;
char vtname1[11];
int fd, pgrp;
MessageType from = X_PROBED;
if (serverGeneration == 1)
{
/* check if we're run with euid==0 */
if (geteuid() != 0)
{
FatalError("xf86OpenConsole: Server must be suid root\n");
}
/*
* setup the virtual terminal manager
* NOTE:
* We use the out-of-the-box atc terminal driver,
* not the GE contributed vdt driver.
* Also, we do setup signals for VT switching which
* is not really necessary because we don't feed the
* VT switch keystrokes to the kernel in xf86Events.c
* (it bombs occasionally...)
*/
if (VTnum != -1)
{
xf86Info.vtno = VTnum;
from = X_CMDLINE;
}
else
{
/* We could use /dev/con which is usually a symlink
* to /dev/atc0 but one could configure the system
* to use a serial line as console device, so to
* be sure we take /dev/atc0.
*/
if ((fd = open("/dev/atc0",O_WRONLY,0)) < 0)
{
FatalError(
"xf86OpenConsole: Cannot open /dev/atc0 (%s)\n",
strerror(errno));
}
if ((ioctl(fd, VT_OPENQRY, &xf86Info.vtno) < 0) ||
(xf86Info.vtno == -1))
{
FatalError("xf86OpenConsole: Cannot find a free VT\n");
}
close(fd);
}
xf86Msg(from, "using VT number %d\n", xf86Info.vtno);
sprintf(vtname1,"/dev/atc%d",xf86Info.vtno);
pgrp = getpgrp(); /* POSIX version ! */
ioctl(xf86Info.consoleFd, TIOCSPGRP, &pgrp);
if ((xf86Info.consoleFd = open(vtname1,O_RDWR|O_NDELAY,0)) < 0)
{
FatalError(
"xf86OpenConsole: Cannot open %s (%s)\n",
vtname1, strerror(errno));
}
/* change ownership of the vt */
chown(vtname1, getuid(), getgid());
/*
* now get the VT
*/
if (ioctl(xf86Info.consoleFd, VT_ACTIVATE, xf86Info.vtno) != 0)
{
xf86Msg(X_WARNING, "xf86OpenConsole: VT_ACTIVATE failed\n");
}
if (ioctl(xf86Info.consoleFd, VT_GETMODE, &VT) < 0)
{
FatalError("xf86OpenConsole: VT_GETMODE failed\n");
}
/* for future use... */
signal(SIGUSR1, xf86VTRequest);
VT.mode = VT_PROCESS;
VT.relsig = SIGUSR1;
VT.acqsig = SIGUSR1;
if (ioctl(xf86Info.consoleFd, VT_SETMODE, &VT) < 0)
{
FatalError("xf86OpenConsole: VT_SETMODE VT_PROCESS failed\n");
}
}
else
{
/* serverGeneration != 1 */
/*
* now get the VT
*/
if (ioctl(xf86Info.consoleFd, VT_ACTIVATE, xf86Info.vtno) != 0)
{
xf86Msg(X_WARNING, "xf86OpenConsole: VT_ACTIVATE failed\n");
}
/*
* If the server doesn't have the VT when the reset occurs,
* this is to make sure we don't continue until the activate
* signal is received.
*/
if (!xf86Screens[0]->vtSema)
sleep(5);
}
return;
}
void
xf86CloseConsole()
{
struct vt_mode VT;
#if 0
ioctl(xf86Info.consoleFd, VT_ACTIVATE, xf86Info.vtno);
ioctl(xf86Info.consoleFd, VT_WAITACTIVE, 0);
#endif
if (ioctl(xf86Info.consoleFd, VT_GETMODE, &VT) != -1)
{
VT.mode = VT_AUTO;
ioctl(xf86Info.consoleFd, VT_SETMODE, &VT); /* set dflt vt handling */
}
close(xf86Info.consoleFd); /* make the vt-manager happy */
return;
}
int
xf86ProcessArgument(int argc, char *argv[], int i)
{
if ((argv[i][0] == 'v') && (argv[i][1] == 't'))
{
if (sscanf(argv[i], "vt%2d", &VTnum) == 0)
{
UseMsg();
VTnum = -1;
return(0);
}
return(1);
}
return(0);
}
void
xf86UseMsg()
{
ErrorF("vtXX use the specified VT number\n");
return;
}

72
hw/xfree86/os-support/lynxos/lynx_mmap.c
View File

@ -1,72 +0,0 @@
/*
* Copyright 1993 by Thomas Mueller
*
* 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 Thomas Mueller not be used in
* advertising or publicity pertaining to distribution of the software without
* specific, written prior permission. Thomas Mueller makes no representations
* about the suitability of this software for any purpose. It is provided
* "as is" without express or implied warranty.
*
* THOMAS MUELLER DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL THOMAS MUELLER 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 "xf86_OSlib.h"
/*
* Read BIOS using smem_create facility
*/
_X_EXPORT int
xf86ReadBIOS(unsigned long Base, unsigned long Offset, unsigned char *Buf,
int Len)
{
#if defined(__powerpc__)
xf86Msg(X_WARNING, "xf86ReadBios: no BIOS-probe on PowerPC\n");
return(-1);
#else
char *p;
int mlen;
mlen = (Offset + Len + 4095) & ~4095;
p = smem_create("BIOS-probe", (char *)Base, mlen, SM_READ);
if (p == NULL)
{
/* check if there is a stale segment around */
if (smem_remove("BIOS-probe") == 0) {
xf86Msg(X_INFO,
"xf86ReadBios: removed stale smem_ segment\n");
p = smem_create("BIOS-probe", (char *)Base, mlen, SM_READ);
}
if (p == NULL) {
xf86Msg(X_WARNING, "xf86ReadBios: Failed to smem_create "
"Base %x len %x %s \n",
Base, mlen, strerror(errno));
return(-1);
}
}
memcpy(Buf, p + Offset, Len);
smem_create(NULL, p, 0, SM_DETACH);
smem_remove("BIOS-probe");
return(Len);
#endif
}

177
hw/xfree86/os-support/lynxos/lynx_noinline.c
View File

@ -1,177 +0,0 @@
/*
* Copyright 1998 by Metro Link Incorporated
*
* 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 Metro Link
* Incorporated not be used in advertising or publicity pertaining to
* distribution of the software without specific, written prior
* permission. Metro Link Incorporated makes no representations
* about the suitability of this software for any purpose. It is
* provided "as is" without express or implied warranty.
*
* METRO LINK INCORPORATED DISCLAIMS ALL WARRANTIES WITH REGARD
* TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS, IN NO EVENT SHALL METRO LINK INCORPORATED 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
#if /* NO_INLINE && */ defined(__powerpc__)
#include "xf86Pci.h"
extern volatile unsigned char *ioBase;
_X_EXPORT void
eieio()
{
__asm__ __volatile__ ("eieio");
}
_X_EXPORT unsigned long
ldl_brx(volatile unsigned char *base, int ndx)
{
register unsigned long tmp = *(volatile unsigned long *)(base+ndx);
return( ((tmp & 0x000000ff) << 24) |
((tmp & 0x0000ff00) << 8) |
((tmp & 0x00ff0000) >> 8) |
((tmp & 0xff000000) >> 24) );
}
_X_EXPORT unsigned short
ldw_brx(volatile unsigned char *base, int ndx)
{
register unsigned short tmp = *(volatile unsigned short *)(base+ndx);
return((tmp << 8) | (tmp >> 8));
}
_X_EXPORT void
stl_brx(unsigned long val, volatile unsigned char *base, int ndx)
{
unsigned char *p = (unsigned char *)&val;
unsigned long tmp = (p[3] << 24) | (p[2] << 16) | (p[1] << 8) | (p[0] << 0);
*(volatile unsigned long *)(base+ndx) = tmp;
}
_X_EXPORT void
stw_brx(unsigned short val, volatile unsigned char *base, int ndx)
{
unsigned char *p = (unsigned char *)&val;
unsigned short tmp = (p[1] << 8) | p[0];
*(volatile unsigned short *)(base+ndx) = tmp;
}
_X_EXPORT void
outb(IOADDRESS port, unsigned char value)
{
*((volatile unsigned char *)(ioBase + port)) = value; eieio();
}
_X_EXPORT void
outw(IOADDRESS port, unsigned short value)
{
stw_brx(value, ioBase, port); eieio();
}
_X_EXPORT void
outl(IOADDRESS port, unsigned int value)
{
stl_brx(value, ioBase, port); eieio();
}
_X_EXPORT unsigned char
inb(IOADDRESS port)
{
unsigned char val;
val = *((volatile unsigned char *)(ioBase + port)); eieio();
return(val);
}
_X_EXPORT unsigned short
inw(IOADDRESS port)
{
unsigned short val;
val = ldw_brx(ioBase, port); eieio();
return(val);
}
_X_EXPORT unsigned int
inl(IOADDRESS port)
{
unsigned int val;
val = ldl_brx(ioBase, port); eieio();
return(val);
}
_X_EXPORT unsigned long
ldl_u(void *p)
{
return (((*(unsigned char *)(p)) |
(*((unsigned char *)(p)+1)<<8) |
(*((unsigned char *)(p)+2)<<16) |
(*((unsigned char *)(p)+3)<<24)));
}
_X_EXPORT unsigned long
ldq_u(void *p)
{
return ldl_u(p);
}
_X_EXPORT unsigned short
ldw_u(void *p)
{
return(((*(unsigned char *)(p)) |
(*((unsigned char *)(p)+1)<<8)));
}
_X_EXPORT void
stl_u(unsigned long v, void *p)
{
(*(unsigned char *)(p)) = (v);
(*((unsigned char *)(p)+1)) = ((v) >> 8);
(*((unsigned char *)(p)+2)) = ((v) >> 16);
(*((unsigned char *)(p)+3)) = ((v) >> 24);
}
_X_EXPORT void
stq_u(unsigned long v, void *p)
{
stl_u(v,p);
}
_X_EXPORT void
stw_u(unsigned short v, void *p)
{
(*(unsigned char *)(p)) = (v);
(*((unsigned char *)(p)+1)) = ((v) >> 8);
}
_X_EXPORT void
mem_barrier(void)
{
__asm__ __volatile__("eieio");
}
_X_EXPORT void
write_mem_barrier(void)
{
__asm__ __volatile__("eieio");
}
#endif /* NO_INLINE && __powerpc__ */

70
hw/xfree86/os-support/lynxos/lynx_ppc.S
View File

@ -1,70 +0,0 @@
/* $XFree86: xc/programs/Xserver/hw/xfree86/os-support/lynxos/lynx_ppc.S,v 1.1 1999/07/10 07:24:49 dawes Exp $ */
/*
* Copyright 1998 by Metro Link Incorporated
*
* 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 Metro Link
* Incorporated not be used in advertising or publicity pertaining to
* distribution of the software without specific, written prior
* permission. Metro Link Incorporated makes no representations
* about the suitability of this software for any purpose. It is
* provided "as is" without express or implied warranty.
*
* METRO LINK INCORPORATED DISCLAIMS ALL WARRANTIES WITH REGARD
* TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS, IN NO EVENT SHALL METRO LINK INCORPORATED 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.
*/
.file "ppc.s"
.toc
.csect .text[PR]
.balign 4
.globl ppc_flush_icache
.globl .ppc_flush_icache
.csect ppc_flush_icache[DS]
ppc_flush_icache:
.long .ppc_flush_icache, TOC[tc0], 0
.csect .text[PR]
.ppc_flush_icache:
mflr 0
stw 31,-4(1)
stw 0,8(1)
stwu 1,-64(1)
mr 31,1
stw 3,88(31)
li 6, 0 /* __inst_dcbf (addr, 0); */
dcbf 3, 6
li 5, 32 /* __inst_dcbf (addr, LINESIZE); */
dcbf 3, 5
sync /* __inst_sync (); */
li 4,0 /* __inst_icbi (addr, 0); */
icbi 3,4
li 7,32 /* __inst_icbi (addr, LINESIZE); */
icbi 3,7
sync /* __inst_sync (); */
isync /* __inst_isync (); */
L..1:
lwz 1,0(1)
lwz 0,8(1)
mtlr 0
lwz 31,-4(1)
blr
LT..ppc_flush_icache:
.long 0
.byte 0,0,32,97,128,1,1,1
.long 0
.long LT..ppc_flush_icache-.ppc_flush_icache
.short 16
.byte "ppc_flush_icache"
.byte 31
_section_.text:
.csect .data[RW]
.long _section_.text

51
hw/xfree86/os-support/lynxos/lynx_ppc.c
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@ -1,51 +0,0 @@
/*
* Copyright 1998 by Metro Link Incorporated
*
* 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 Metro Link
* Incorporated not be used in advertising or publicity pertaining to
* distribution of the software without specific, written prior
* permission. Metro Link Incorporated makes no representations
* about the suitability of this software for any purpose. It is
* provided "as is" without express or implied warranty.
*
* METRO LINK INCORPORATED DISCLAIMS ALL WARRANTIES WITH REGARD
* TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS, IN NO EVENT SHALL METRO LINK INCORPORATED 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.
*/
void ppc_flush_icache()
{
__asm__ __volatile__ (" \
mflr 0 ;\
stw 31,-4(1) ;\
stw 0,8(1) ;\
stwu 1,-64(1) ;\
mr 31,1 ;\
stw 3,88(31) ;\
li 6, 0 ;\
dcbf 3, 6 ;\
li 5, 32 ;\
dcbf 3, 5 ;\
sync ;\
li 4,0 ;\
icbi 3,4 ;\
li 7,32 ;\
icbi 3,7 ;\
sync ;\
isync ;\
lwz 1,0(1) ;\
lwz 0,8(1) ;\
mtlr 0 ;\
lwz 31,-4(1) ;\
blr ;\
");
}

710
hw/xfree86/os-support/lynxos/lynx_video.c
View File

@ -1,710 +0,0 @@
/*
* Copyright 1993 by Thomas Mueller
*
* 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 Thomas Mueller not be used in
* advertising or publicity pertaining to distribution of the software without
* specific, written prior permission. Thomas Mueller makes no representations
* about the suitability of this software for any purpose. It is provided
* "as is" without express or implied warranty.
*
* THOMAS MUELLER DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL THOMAS MUELLER 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 "input.h"
#include "scrnintstr.h"
#include "xf86.h"
#include "xf86Priv.h"
#include "xf86_OSlib.h"
#include "xf86OSpriv.h"
#if defined(__powerpc__)
# if defined(USE_MACHINE_ABSOLUTE)
# include <machine/absolute.h>
# else
# define __USER_SPACE_INCLUDE
# include <hw_absolute.h>
# endif
void ppcPciIoMap(int bus);
#endif
#if 0
#define DEBUG
#endif
#ifdef HAS_MTRR_SUPPORT
#include <sys/memrange.h>
#define X_MTRR_ID "XFree86"
static pointer setWC(int, unsigned long, unsigned long, Bool, MessageType);
static void undoWC(int, pointer);
static Bool cleanMTRR(void);
static int devMemFd = -1;
#define MTRR_DEVICE "/dev/mtrr"
#endif
#if !defined(NO_MMAP)
#include <sys/mman.h>
int smem_remove(char *name)
{
return(0);
}
char *smem_create(char *name, char *arg_addr, long size, int mode)
{
int fd;
void *addr = 0;
char *retval;
size_t len = size;
int prot = PROT_READ|PROT_WRITE|PROT_UNCACHE;
int flags = MAP_SHARED;
off_t off = (off_t)arg_addr;
if ((fd = open("/dev/mem" , O_RDWR)) < 0)
{
retval = (char *)-1;
}
else
{
if (mode == SM_DETACH)
{
munmap(arg_addr, len);
retval = 0;
}
else
{
if ((retval = mmap (addr, len, prot, flags, fd, off) ) == MAP_FAILED)
{
retval = (char *)-1;
}
}
close(fd);
}
return(retval);
}
#endif
/***************************************************************************/
/* Video Memory Mapping section */
/***************************************************************************/
typedef struct
{
char name[16];
unsigned long Base;
unsigned long Size;
char *ptr;
int RefCnt;
}
_SMEMS;
#define MAX_SMEMS 16
static _SMEMS smems[MAX_SMEMS];
#ifndef MAP_FAILED
#define MAP_FAILED ((void *)-1)
#endif
static void
smemCleanup(void)
{
int i;
for (i = 0; i < MAX_SMEMS; i++) {
if (*smems[i].name && smems[i].ptr) {
(void)smem_create(NULL, smems[i].ptr, 0, SM_DETACH);
(void)smem_remove(smems[i].name);
*smems[i].name = '\0';
smems[i].ptr = NULL;
smems[i].Base = 0;
smems[i].Size = 0;
smems[i].RefCnt = 0;
}
}
}
static pointer
MapVidMem(int ScreenNum, unsigned long Base, unsigned long Size, int flags)
{
static int once;
int free_slot = -1;
int i;
if (!once)
{
atexit(smemCleanup);
once = 1;
}
for (i = 0; i < MAX_SMEMS; i++)
{
if (!*smems[i].name && free_slot == -1)
free_slot = i;
if (smems[i].Base == Base && smems[i].Size == Size
&& *smems[i].name) {
smems[i].RefCnt++;
return smems[i].ptr;
}
}
if (i == MAX_SMEMS && free_slot == -1)
{
FatalError("MapVidMem: failed to smem_create Base %x Size %x (out of SMEMS entries)\n",
Base, Size);
}
i = free_slot;
sprintf(smems[i].name, "Video-%d", i);
smems[i].Base = Base;
smems[i].Size = Size;
xf86MsgVerb(X_INFO, 3, "MapVidMem: Base=0x%x Size=0x%x\n",
Base, Size);
#if defined(__powerpc__)
if (((unsigned long)Base & PHYS_IO_MEM_START) != PHYS_IO_MEM_START) {
Base = Base | PHYS_IO_MEM_START;
}
#endif
smems[i].ptr = smem_create(smems[i].name, (char *)Base, Size, SM_READ|SM_WRITE);
smems[i].RefCnt = 1;
if (smems[i].ptr == NULL)
{
/* check if there is a stale segment around */
if (smem_remove(smems[i].name) == 0) {
xf86Msg(X_INFO,
"MapVidMem: removed stale smem_ segment %s\n",
smems[i].name);
smems[i].ptr = smem_create(smems[i].name,
(char *)Base, Size, SM_READ|SM_WRITE);
}
if (smems[i].ptr == NULL) {
*smems[i].name = '\0';
FatalError("MapVidMem: failed to smem_create Base %x Size %x (%s)\n",
Base, Size, strerror(errno));
}
}
xf86MsgVerb(X_INFO, 3, "MapVidMem: Base=0x%x Size=0x%x Ptr=0x%x\n",
Base, Size, smems[i].ptr);
return smems[i].ptr;
}
static void
UnMapVidMem(int ScreenNum, pointer Base, unsigned long Size)
{
int i;
xf86MsgVerb(X_INFO, 3, "UnMapVidMem: Base/Ptr=0x%x Size=0x%x\n",
Base, Size);
for (i = 0; i < MAX_SMEMS; i++)
{
if (*smems[i].name && smems[i].ptr == Base
&& smems[i].Size == Size)
{
if (--smems[i].RefCnt > 0)
return;
(void)smem_create(NULL, smems[i].ptr, 0, SM_DETACH);
xf86MsgVerb(X_INFO, 3,
"UnMapVidMem: smem_create(%s, 0x%08x, ... "
"SM_DETACH)\n", smems[i].name, smems[i].ptr);
(void)smem_remove(smems[i].name);
*smems[i].name = '\0';
smems[i].RefCnt = 0;
return;
}
}
xf86MsgVerb(X_WARNING, 2,
"UnMapVidMem: no SMEM found for Base = %lx Size = %lx\n",
Base, Size);
}
void
xf86OSInitVidMem(VidMemInfoPtr pVidMem)
{
pVidMem->linearSupported = TRUE;
pVidMem->mapMem = MapVidMem;
pVidMem->unmapMem = UnMapVidMem;
pVidMem->setWC = 0;
pVidMem->undoWC = 0;
#ifdef HAS_MTRR_SUPPORT
if (cleanMTRR()) {
pVidMem->setWC = setWC;
pVidMem->undoWC = undoWC;
}
#endif
pVidMem->initialised = TRUE;
}
/***************************************************************************/
/* Interrupt Handling section */
/***************************************************************************/
_X_EXPORT Bool
xf86DisableInterrupts()
{
return(TRUE);
}
_X_EXPORT void
xf86EnableInterrupts()
{
return;
}
/***************************************************************************/
/* I/O Permissions section for PowerPC */
/***************************************************************************/
#if defined(__powerpc__)
_X_EXPORT volatile unsigned char *ioBase = MAP_FAILED;
volatile unsigned char *pciConfBase = MAP_FAILED;
static int IOEnabled;
static void
removeIOSmem(void)
{
smem_create(NULL, (char *) ioBase, 0, SM_DETACH);
smem_remove("IOBASE");
ioBase = MAP_FAILED;
}
_X_EXPORT Bool
xf86EnableIO()
{
if (IOEnabled++ == 0) {
ioBase = (unsigned char *) smem_create("IOBASE",
(char *)PHYS_ISA_IO_SPACE, 64*1024, SM_READ|SM_WRITE);
if (ioBase == MAP_FAILED) {
--IOEnabled;
xf86Msg(X_WARNING,"xf86EnableIO: Failed to map I/O\n");
return FALSE;
} else {
#ifdef DEBUG
ErrorF("xf86EnableIO: mapped I/O at vaddr 0x%08x\n",
ioBase);
#endif
atexit(removeIOSmem);
}
}
return TRUE;
}
_X_EXPORT void
xf86DisableIO()
{
if (!IOEnabled)
return;
if (--IOEnabled == 0)
removeIOSmem();
return;
}
#if 0
void
xf86DisableIOPrivs(void)
{
return;
}
#endif
void
ppcPciIoMap(int bus)
{
xf86EnableIO();
}
#endif
#ifdef HAS_MTRR_SUPPORT
/* memory range (MTRR) support for LynxOS (taken from BSD MTRR support) */
/*
* This code is experimental. Some parts may be overkill, and other parts
* may be incomplete.
*/
/*
* getAllRanges returns the full list of memory ranges with attributes set.
*/
static struct mem_range_desc *
getAllRanges(int *nmr)
{
struct mem_range_desc *mrd;
struct mem_range_op mro;
/*
* Find how many ranges there are. If this fails, then the kernel
* probably doesn't have MTRR support.
*/
mro.mo_arg[0] = 0;
if (ioctl(devMemFd, MEMRANGE_GET, &mro))
return NULL;
*nmr = mro.mo_arg[0];
mrd = xnfalloc(*nmr * sizeof(struct mem_range_desc));
mro.mo_arg[0] = *nmr;
mro.mo_desc = mrd;
if (ioctl(devMemFd, MEMRANGE_GET, &mro)) {
xfree(mrd);
return NULL;
}
return mrd;
}
/*
* cleanMTRR removes any memory attribute that may be left by a previous
* X server. Normally there won't be any, but this takes care of the
* case where a server crashed without being able finish cleaning up.
*/
static Bool
cleanMTRR()
{
struct mem_range_desc *mrd;
struct mem_range_op mro;
int nmr, i;
/* This shouldn't happen */
if (devMemFd < 0) {
if ((devMemFd = open(MTRR_DEVICE, O_RDONLY)) < 0) {
perror("open MTRR");
return FALSE;
}
}
if (!(mrd = getAllRanges(&nmr)))
return FALSE;
for (i = 0; i < nmr; i++) {
if (strcmp(mrd[i].mr_owner, X_MTRR_ID) == 0 &&
(mrd[i].mr_flags & MDF_ACTIVE)) {
#ifdef DEBUG
ErrorF("Clean for (0x%lx,0x%lx)\n",
(unsigned long)mrd[i].mr_base,
(unsigned long)mrd[i].mr_len);
#endif
if (mrd[i].mr_flags & MDF_FIXACTIVE) {
mro.mo_arg[0] = MEMRANGE_SET_UPDATE;
mrd[i].mr_flags = MDF_UNCACHEABLE;
} else {
mro.mo_arg[0] = MEMRANGE_SET_REMOVE;
}
mro.mo_desc = mrd + i;
ioctl(devMemFd, MEMRANGE_SET, &mro);
}
}
#ifdef DEBUG
sleep(10);
#endif
xfree(mrd);
return TRUE;
}
typedef struct x_RangeRec {
struct mem_range_desc mrd;
Bool wasWC;
struct x_RangeRec * next;
} RangeRec, *RangePtr;
static void
freeRangeList(RangePtr range)
{
RangePtr rp;
while (range) {
rp = range;
range = rp->next;
xfree(rp);
}
}
static RangePtr
dupRangeList(RangePtr list)
{
RangePtr new = NULL, rp, p;
rp = list;
while (rp) {
p = xnfalloc(sizeof(RangeRec));
*p = *rp;
p->next = new;
new = p;
rp = rp->next;
}
return new;
}
static RangePtr
sortRangeList(RangePtr list)
{
RangePtr rp1, rp2, copy, sorted = NULL, minp, prev, minprev;
unsigned long minBase;
/* Sort by base address */
rp1 = copy = dupRangeList(list);
while (rp1) {
minBase = rp1->mrd.mr_base;
minp = rp1;
minprev = NULL;
prev = rp1;
rp2 = rp1->next;
while (rp2) {
if (rp2->mrd.mr_base < minBase) {
minBase = rp2->mrd.mr_base;
minp = rp2;
minprev = prev;
}
prev = rp2;
rp2 = rp2->next;
}
if (minprev) {
minprev->next = minp->next;
rp1 = copy;
} else {
rp1 = minp->next;
}
minp->next = sorted;
sorted = minp;
}
return sorted;
}
/*
* findRanges returns a list of ranges that overlap the specified range.
*/
static void
findRanges(unsigned long base, unsigned long size, RangePtr *ucp, RangePtr *wcp)
{
struct mem_range_desc *mrd;
int nmr, i;
RangePtr rp, *p;
if (!(mrd = getAllRanges(&nmr)))
return;
for (i = 0; i < nmr; i++) {
if ((mrd[i].mr_flags & MDF_ACTIVE) &&
mrd[i].mr_base < base + size &&
mrd[i].mr_base + mrd[i].mr_len > base) {
if (mrd[i].mr_flags & MDF_WRITECOMBINE)
p = wcp;
else if (mrd[i].mr_flags & MDF_UNCACHEABLE)
p = ucp;
else
continue;
rp = xnfalloc(sizeof(RangeRec));
rp->mrd = mrd[i];
rp->next = *p;
*p = rp;
}
}
xfree(mrd);
}
/*
* This checks if the existing overlapping ranges fully cover the requested
* range. Is this overkill?
*/
static Bool
fullCoverage(unsigned long base, unsigned long size, RangePtr overlap)
{
RangePtr rp1, sorted = NULL;
unsigned long end;
sorted = sortRangeList(overlap);
/* Look for gaps */
rp1 = sorted;
end = base + size;
while (rp1) {
if (rp1->mrd.mr_base > base) {
freeRangeList(sorted);
return FALSE;
} else {
base = rp1->mrd.mr_base + rp1->mrd.mr_len;
}
if (base >= end) {
freeRangeList(sorted);
return TRUE;
}
rp1 = rp1->next;
}
freeRangeList(sorted);
return FALSE;
}
static pointer
addWC(int screenNum, unsigned long base, unsigned long size, MessageType from)
{
RangePtr uc = NULL, wc = NULL, retlist = NULL;
struct mem_range_desc mrd;
struct mem_range_op mro;
findRanges(base, size, &uc, &wc);
/* See of the full range is already WC */
if (!uc && fullCoverage(base, size, wc)) {
xf86DrvMsg(screenNum, from,
"Write-combining range (0x%lx,0x%lx) was already set\n",
base, size);
return NULL;
}
/* Otherwise, try to add the new range */
mrd.mr_base = base;
mrd.mr_len = size;
strcpy(mrd.mr_owner, X_MTRR_ID);
mrd.mr_flags = MDF_WRITECOMBINE;
mro.mo_desc = &mrd;
mro.mo_arg[0] = MEMRANGE_SET_UPDATE;
if (ioctl(devMemFd, MEMRANGE_SET, &mro)) {
xf86DrvMsg(screenNum, X_WARNING,
"Failed to set write-combining range "
"(0x%lx,0x%lx)\n", base, size);
return NULL;
} else {
xf86DrvMsg(screenNum, from,
"Write-combining range (0x%lx,0x%lx)\n", base, size);
retlist = xnfalloc(sizeof(RangeRec));
retlist->mrd = mrd;
retlist->wasWC = FALSE;
retlist->next = NULL;
return retlist;
}
}
static pointer
delWC(int screenNum, unsigned long base, unsigned long size, MessageType from)
{
RangePtr uc = NULL, wc = NULL, retlist = NULL;
struct mem_range_desc mrd;
struct mem_range_op mro;
findRanges(base, size, &uc, &wc);
/*
* See of the full range is already not WC, or if there is full
* coverage from UC ranges.
*/
if (!wc || fullCoverage(base, size, uc)) {
xf86DrvMsg(screenNum, from,
"Write-combining range (0x%lx,0x%lx) was already clear\n",
base, size);
return NULL;
}
/* Otherwise, try to add the new range */
mrd.mr_base = base;
mrd.mr_len = size;
strcpy(mrd.mr_owner, X_MTRR_ID);
mrd.mr_flags = MDF_UNCACHEABLE;
mro.mo_desc = &mrd;
mro.mo_arg[0] = MEMRANGE_SET_UPDATE;
if (ioctl(devMemFd, MEMRANGE_SET, &mro)) {
xf86DrvMsg(screenNum, X_WARNING,
"Failed to remove write-combining range "
"(0x%lx,0x%lx)\n", base, size);
/* XXX Should then remove all of the overlapping WC ranges */
return NULL;
} else {
xf86DrvMsg(screenNum, from,
"Removed Write-combining range (0x%lx,0x%lx)\n",
base, size);
retlist = xnfalloc(sizeof(RangeRec));
retlist->mrd = mrd;
retlist->wasWC = TRUE;
retlist->next = NULL;
return retlist;
}
}
static pointer
setWC(int screenNum, unsigned long base, unsigned long size, Bool enable,
MessageType from)
{
if (enable)
return addWC(screenNum, base, size, from);
else
return delWC(screenNum, base, size, from);
}
static void
undoWC(int screenNum, pointer list)
{
RangePtr rp;
struct mem_range_op mro;
Bool failed;
rp = list;
while (rp) {
#ifdef DEBUG
ErrorF("Undo for (0x%lx,0x%lx), %d\n",
(unsigned long)rp->mrd.mr_base,
(unsigned long)rp->mrd.mr_len, rp->wasWC);
#endif
failed = FALSE;
if (rp->wasWC) {
mro.mo_arg[0] = MEMRANGE_SET_UPDATE;
rp->mrd.mr_flags = MDF_WRITECOMBINE;
strcpy(rp->mrd.mr_owner, "unknown");
} else {
mro.mo_arg[0] = MEMRANGE_SET_REMOVE;
}
mro.mo_desc = &rp->mrd;
if (ioctl(devMemFd, MEMRANGE_SET, &mro)) {
if (!rp->wasWC) {
mro.mo_arg[0] = MEMRANGE_SET_UPDATE;
rp->mrd.mr_flags = MDF_UNCACHEABLE;
strcpy(rp->mrd.mr_owner, "unknown");
if (ioctl(devMemFd, MEMRANGE_SET, &mro))
failed = TRUE;
} else
failed = TRUE;
}
if (failed) {
xf86DrvMsg(screenNum, X_WARNING,
"Failed to restore MTRR range (0x%lx,0x%lx)\n",
(unsigned long)rp->mrd.mr_base,
(unsigned long)rp->mrd.mr_len);
}
rp = rp->next;
}
}
#endif /* HAS_MTRR_SUPPORT */