xserver: Branch 'master' - 6 commits
Keith Packard
keithp at kemper.freedesktop.org
Tue Oct 13 18:41:01 PDT 2009
hw/xfree86/common/compiler.h | 16 +++++++
hw/xfree86/os-support/linux/lnx_axp.c | 16 ++-----
hw/xfree86/os-support/linux/lnx_ev56.c | 18 +++++---
hw/xfree86/os-support/misc/SlowBcopy.c | 68 +++++++++++++++++++++++++++++++
hw/xfree86/os-support/shared/bios_mmap.c | 2
hw/xfree86/vgahw/vgaHW.c | 16 +++----
6 files changed, 111 insertions(+), 25 deletions(-)
New commits:
commit 6e158003e80534ce007290f75c89d698aec1d00b
Merge: 2b14e14... 5e762f0...
Author: Keith Packard <keithp at keithp.com>
Date: Tue Oct 13 18:40:42 2009 -0700
Merge remote branch 'mattst88/master'
* mattst88/master:
[alpha] assume we have __NR_pciconfig_iobase
[alpha] don't return from void functions
Fix undefined symbols on alpha
Fix breakage on alpha caused by c7680befe5ae
Revert "alpha: kill xf86SlowBCopyToBus and xf86SlowBCopyFromBus"
commit 5e762f0e2f203b5121a3de3b9af3c8981b31a77f
Author: Matt Turner <mattst88 at gmail.com>
Date: Tue Oct 13 20:42:14 2009 -0400
[alpha] assume we have __NR_pciconfig_iobase
The code path if we didn't have support has been broken since before we
switched to git.
The pciconfig_iobase syscall has been supported since 2000.
Signed-off-by: Matt Turner <mattst88 at gmail.com>
diff --git a/hw/xfree86/os-support/linux/lnx_axp.c b/hw/xfree86/os-support/linux/lnx_axp.c
index 34129cc..10b97b0 100644
--- a/hw/xfree86/os-support/linux/lnx_axp.c
+++ b/hw/xfree86/os-support/linux/lnx_axp.c
@@ -138,16 +138,12 @@ long (*_iobase)(unsigned, int, int, int) = _alpha_iobase_query;
static long
_alpha_iobase(unsigned flags, int hose, int bus, int devfn)
{
-#ifdef __NR_pciconfig_iobase
if (bus < 0) {
bus = hose;
flags |= IOBASE_FROM_HOSE;
}
return syscall(__NR_pciconfig_iobase, flags, bus, devfn);
-#else
- return -ENOSYS
-#endif
}
static long
commit 46785c04bca16f495af3ed8d685aee939a1a8f39
Author: Matt Turner <mattst88 at gmail.com>
Date: Tue Oct 13 20:40:59 2009 -0400
[alpha] don't return from void functions
Signed-off-by: Matt Turner <mattst88 at gmail.com>
diff --git a/hw/xfree86/os-support/linux/lnx_ev56.c b/hw/xfree86/os-support/linux/lnx_ev56.c
index e751da2..c65e1cc 100644
--- a/hw/xfree86/os-support/linux/lnx_ev56.c
+++ b/hw/xfree86/os-support/linux/lnx_ev56.c
@@ -94,28 +94,34 @@ writeDense32(int Value, pointer Base, register unsigned long Offset)
void
_dense_outb(char val, unsigned long port)
{
- if ((port & ~0xffff) == 0) return _outb(val, port);
-
+ if ((port & ~0xffff) == 0) {
+ _outb(val, port);
+ } else {
write_mem_barrier();
*(volatile CARD8 *)port = val;
+ }
}
void
_dense_outw(short val, unsigned long port)
{
- if ((port & ~0xffff) == 0) return _outw(val, port);
-
+ if ((port & ~0xffff) == 0) {
+ _outw(val, port);
+ } else {
write_mem_barrier();
*(volatile CARD16 *)port = val;
+ }
}
void
_dense_outl(int val, unsigned long port)
{
- if ((port & ~0xffff) == 0) return _outl(val, port);
-
+ if ((port & ~0xffff) == 0) {
+ _outl(val, port);
+ } else {
write_mem_barrier();
*(volatile CARD32 *)port = val;
+ }
}
unsigned int
commit 34eddbbb73bb16395dba0818247909c1b4bee4c2
Author: Michael Cree <mcree at orcon.net.nz>
Date: Wed Oct 7 18:33:29 2009 -0400
Fix undefined symbols on alpha
Signed-off-by: Matt Turner <mattst88 at gmail.com>
diff --git a/hw/xfree86/os-support/linux/lnx_axp.c b/hw/xfree86/os-support/linux/lnx_axp.c
index 8571c04..34129cc 100644
--- a/hw/xfree86/os-support/linux/lnx_axp.c
+++ b/hw/xfree86/os-support/linux/lnx_axp.c
@@ -125,12 +125,12 @@ extern unsigned int _dense_inb(unsigned long);
extern unsigned int _dense_inw(unsigned long);
extern unsigned int _dense_inl(unsigned long);
-void (*_alpha_outb)(char, unsigned long) = _outb;
-void (*_alpha_outw)(short, unsigned long) = _outw;
-void (*_alpha_outl)(int, unsigned long) = _outl;
-unsigned int (*_alpha_inb)(unsigned long) = _inb;
-unsigned int (*_alpha_inw)(unsigned long) = _inw;
-unsigned int (*_alpha_inl)(unsigned long) = _inl;
+_X_EXPORT void (*_alpha_outb)(char, unsigned long) = _outb;
+_X_EXPORT void (*_alpha_outw)(short, unsigned long) = _outw;
+_X_EXPORT void (*_alpha_outl)(int, unsigned long) = _outl;
+_X_EXPORT unsigned int (*_alpha_inb)(unsigned long) = _inb;
+_X_EXPORT unsigned int (*_alpha_inw)(unsigned long) = _inw;
+_X_EXPORT unsigned int (*_alpha_inl)(unsigned long) = _inl;
static long _alpha_iobase_query(unsigned, int, int, int);
long (*_iobase)(unsigned, int, int, int) = _alpha_iobase_query;
commit 9625f6d328d6f516520930227b218979309938bc
Author: Matt Turner <mattst88 at gmail.com>
Date: Tue Oct 6 20:58:30 2009 -0400
Fix breakage on alpha caused by c7680befe5ae
Pinpointed by by Michael Cree.
Commit c7680befe5ae removed Jensen support, but at the same time broke
support for dense memory systems.
Signed-off-by: Matt Turner <mattst88 at gmail.com>
diff --git a/hw/xfree86/os-support/misc/SlowBcopy.c b/hw/xfree86/os-support/misc/SlowBcopy.c
index 182a3e6..0021b55 100644
--- a/hw/xfree86/os-support/misc/SlowBcopy.c
+++ b/hw/xfree86/os-support/misc/SlowBcopy.c
@@ -59,10 +59,16 @@ xf86SlowBcopy(unsigned char *src, unsigned char *dst, int len)
#ifdef linux
+unsigned long _bus_base(void);
+
+#define useSparse() (!_bus_base())
+
#define SPARSE (7)
#else
+#define useSparse() 0
+
#define SPARSE 0
#endif
@@ -70,32 +76,42 @@ xf86SlowBcopy(unsigned char *src, unsigned char *dst, int len)
void
xf86SlowBCopyFromBus(unsigned char *src, unsigned char *dst, int count)
{
- unsigned long addr;
- long result;
-
- addr = (unsigned long) src;
- while( count ){
- result = *(volatile int *) addr;
- result >>= ((addr>>SPARSE) & 3) * 8;
- *dst++ = (unsigned char) (0xffUL & result);
- addr += 1<<SPARSE;
- count--;
- outb(0x80, 0x00);
- }
+ if (useSparse())
+ {
+ unsigned long addr;
+ long result;
+
+ addr = (unsigned long) src;
+ while (count) {
+ result = *(volatile int *) addr;
+ result >>= ((addr>>SPARSE) & 3) * 8;
+ *dst++ = (unsigned char) (0xffUL & result);
+ addr += 1<<SPARSE;
+ count--;
+ outb(0x80, 0x00);
+ }
+ }
+ else
+ xf86SlowBcopy(src, dst, count);
}
-
+
void
xf86SlowBCopyToBus(unsigned char *src, unsigned char *dst, int count)
{
- unsigned long addr;
-
- addr = (unsigned long) dst;
- while(count) {
- *(volatile unsigned int *) addr = (unsigned short)(*src) * 0x01010101;
- src++;
- addr += 1<<SPARSE;
- count--;
- outb(0x80, 0x00);
- }
+ if (useSparse())
+ {
+ unsigned long addr;
+
+ addr = (unsigned long) dst;
+ while (count) {
+ *(volatile unsigned int *) addr = (unsigned short)(*src) * 0x01010101;
+ src++;
+ addr += 1<<SPARSE;
+ count--;
+ outb(0x80, 0x00);
+ }
+ }
+ else
+ xf86SlowBcopy(src, dst, count);
}
#endif
commit aa07957373fd7cbe67458a001e4afd6a7f1ea37f
Author: Peter Hutterer <peter.hutterer at who-t.net>
Date: Mon Sep 28 12:20:03 2009 +1000
Revert "alpha: kill xf86SlowBCopyToBus and xf86SlowBCopyFromBus"
The vesa driver still uses slowbcopy_frombus and slowbcopy_tobus.
This reverts commit 5ef53a94ce4e48e11de26290cd677266308640c8.
Signed-off-by: Peter Hutterer <peter.hutterer at who-t.net>
diff --git a/hw/xfree86/common/compiler.h b/hw/xfree86/common/compiler.h
index cdb493a..a450bd6 100644
--- a/hw/xfree86/common/compiler.h
+++ b/hw/xfree86/common/compiler.h
@@ -1211,6 +1211,8 @@ extern _X_EXPORT void (*xf86WriteMmio32)(int, void *, unsigned long);
extern _X_EXPORT void (*xf86WriteMmioNB8)(int, void *, unsigned long);
extern _X_EXPORT void (*xf86WriteMmioNB16)(int, void *, unsigned long);
extern _X_EXPORT void (*xf86WriteMmioNB32)(int, void *, unsigned long);
+extern _X_EXPORT void xf86SlowBCopyFromBus(unsigned char *, unsigned char *, int);
+extern _X_EXPORT void xf86SlowBCopyToBus(unsigned char *, unsigned char *, int);
/* Some macros to hide the system dependencies for MMIO accesses */
/* Changed to kill noise generated by gcc's -Wcast-align */
@@ -1342,4 +1344,18 @@ extern _X_EXPORT void (*xf86WriteMmioNB32)(int, void *, unsigned long);
# define MMIO_MOVE32(base, offset, val) MMIO_OUT32(base, offset, val)
# endif /* __alpha__ */
+
+/*
+ * With Intel, the version in os-support/misc/SlowBcopy.s is used.
+ * This avoids port I/O during the copy (which causes problems with
+ * some hardware).
+ */
+# ifdef __alpha__
+# define slowbcopy_tobus(src,dst,count) xf86SlowBCopyToBus(src,dst,count)
+# define slowbcopy_frombus(src,dst,count) xf86SlowBCopyFromBus(src,dst,count)
+# else /* __alpha__ */
+# define slowbcopy_tobus(src,dst,count) xf86SlowBcopy(src,dst,count)
+# define slowbcopy_frombus(src,dst,count) xf86SlowBcopy(src,dst,count)
+# endif /* __alpha__ */
+
#endif /* _COMPILER_H */
diff --git a/hw/xfree86/os-support/misc/SlowBcopy.c b/hw/xfree86/os-support/misc/SlowBcopy.c
index 8a5017e..182a3e6 100644
--- a/hw/xfree86/os-support/misc/SlowBcopy.c
+++ b/hw/xfree86/os-support/misc/SlowBcopy.c
@@ -1,8 +1,15 @@
+/*******************************************************************************
+ for Alpha Linux
+*******************************************************************************/
+
/*
* Create a dependency that should be immune from the effect of register
* renaming as is commonly seen in superscalar processors. This should
* insert a minimum of 100-ns delays between reads/writes at clock rates
* up to 100 MHz---GGL
+ *
+ * Slowbcopy(char *src, char *dst, int count)
+ *
*/
#ifdef HAVE_XORG_CONFIG_H
@@ -47,3 +54,48 @@ xf86SlowBcopy(unsigned char *src, unsigned char *dst, int len)
while(len--)
*dst++ = *src++;
}
+
+#ifdef __alpha__
+
+#ifdef linux
+
+#define SPARSE (7)
+
+#else
+
+#define SPARSE 0
+
+#endif
+
+void
+xf86SlowBCopyFromBus(unsigned char *src, unsigned char *dst, int count)
+{
+ unsigned long addr;
+ long result;
+
+ addr = (unsigned long) src;
+ while( count ){
+ result = *(volatile int *) addr;
+ result >>= ((addr>>SPARSE) & 3) * 8;
+ *dst++ = (unsigned char) (0xffUL & result);
+ addr += 1<<SPARSE;
+ count--;
+ outb(0x80, 0x00);
+ }
+}
+
+void
+xf86SlowBCopyToBus(unsigned char *src, unsigned char *dst, int count)
+{
+ unsigned long addr;
+
+ addr = (unsigned long) dst;
+ while(count) {
+ *(volatile unsigned int *) addr = (unsigned short)(*src) * 0x01010101;
+ src++;
+ addr += 1<<SPARSE;
+ count--;
+ outb(0x80, 0x00);
+ }
+}
+#endif
diff --git a/hw/xfree86/os-support/shared/bios_mmap.c b/hw/xfree86/os-support/shared/bios_mmap.c
index a615a1d..40afd5b 100644
--- a/hw/xfree86/os-support/shared/bios_mmap.c
+++ b/hw/xfree86/os-support/shared/bios_mmap.c
@@ -131,7 +131,7 @@ xf86ReadBIOS(unsigned long Base, unsigned long Offset, unsigned char *Buf,
return(-1);
}
- xf86SlowBcopy((unsigned char *)(base+Offset), Buf, Len);
+ xf86SlowBCopyFromBus((unsigned char *)(base+Offset), Buf, Len);
munmap((caddr_t)base, mlen);
close(fd);
diff --git a/hw/xfree86/vgahw/vgaHW.c b/hw/xfree86/vgahw/vgaHW.c
index 025dde2..004376b 100644
--- a/hw/xfree86/vgahw/vgaHW.c
+++ b/hw/xfree86/vgahw/vgaHW.c
@@ -793,7 +793,7 @@ vgaHWRestoreFonts(ScrnInfoPtr scrninfp, vgaRegPtr restore)
if (hwp->FontInfo1) {
hwp->writeSeq(hwp, 0x02, 0x04); /* write to plane 2 */
hwp->writeGr(hwp, 0x04, 0x02); /* read plane 2 */
- xf86SlowBcopy(hwp->FontInfo1, hwp->Base, FONT_AMOUNT);
+ slowbcopy_tobus(hwp->FontInfo1, hwp->Base, FONT_AMOUNT);
}
#endif
@@ -801,7 +801,7 @@ vgaHWRestoreFonts(ScrnInfoPtr scrninfp, vgaRegPtr restore)
if (hwp->FontInfo2) {
hwp->writeSeq(hwp, 0x02, 0x08); /* write to plane 3 */
hwp->writeGr(hwp, 0x04, 0x03); /* read plane 3 */
- xf86SlowBcopy(hwp->FontInfo2, hwp->Base, FONT_AMOUNT);
+ slowbcopy_tobus(hwp->FontInfo2, hwp->Base, FONT_AMOUNT);
}
#endif
@@ -809,10 +809,10 @@ vgaHWRestoreFonts(ScrnInfoPtr scrninfp, vgaRegPtr restore)
if (hwp->TextInfo) {
hwp->writeSeq(hwp, 0x02, 0x01); /* write to plane 0 */
hwp->writeGr(hwp, 0x04, 0x00); /* read plane 0 */
- xf86SlowBcopy(hwp->TextInfo, hwp->Base, TEXT_AMOUNT);
+ slowbcopy_tobus(hwp->TextInfo, hwp->Base, TEXT_AMOUNT);
hwp->writeSeq(hwp, 0x02, 0x02); /* write to plane 1 */
hwp->writeGr(hwp, 0x04, 0x01); /* read plane 1 */
- xf86SlowBcopy((unsigned char *)hwp->TextInfo + TEXT_AMOUNT,
+ slowbcopy_tobus((unsigned char *)hwp->TextInfo + TEXT_AMOUNT,
hwp->Base, TEXT_AMOUNT);
}
#endif
@@ -971,24 +971,24 @@ vgaHWSaveFonts(ScrnInfoPtr scrninfp, vgaRegPtr save)
if (hwp->FontInfo1 || (hwp->FontInfo1 = xalloc(FONT_AMOUNT))) {
hwp->writeSeq(hwp, 0x02, 0x04); /* write to plane 2 */
hwp->writeGr(hwp, 0x04, 0x02); /* read plane 2 */
- xf86SlowBcopy(hwp->Base, hwp->FontInfo1, FONT_AMOUNT);
+ slowbcopy_frombus(hwp->Base, hwp->FontInfo1, FONT_AMOUNT);
}
#endif /* SAVE_FONT1 */
#if SAVE_FONT2
if (hwp->FontInfo2 || (hwp->FontInfo2 = xalloc(FONT_AMOUNT))) {
hwp->writeSeq(hwp, 0x02, 0x08); /* write to plane 3 */
hwp->writeGr(hwp, 0x04, 0x03); /* read plane 3 */
- xf86SlowBcopy(hwp->Base, hwp->FontInfo2, FONT_AMOUNT);
+ slowbcopy_frombus(hwp->Base, hwp->FontInfo2, FONT_AMOUNT);
}
#endif /* SAVE_FONT2 */
#if SAVE_TEXT
if (hwp->TextInfo || (hwp->TextInfo = xalloc(2 * TEXT_AMOUNT))) {
hwp->writeSeq(hwp, 0x02, 0x01); /* write to plane 0 */
hwp->writeGr(hwp, 0x04, 0x00); /* read plane 0 */
- xf86SlowBcopy(hwp->Base, hwp->TextInfo, TEXT_AMOUNT);
+ slowbcopy_frombus(hwp->Base, hwp->TextInfo, TEXT_AMOUNT);
hwp->writeSeq(hwp, 0x02, 0x02); /* write to plane 1 */
hwp->writeGr(hwp, 0x04, 0x01); /* read plane 1 */
- xf86SlowBcopy(hwp->Base,
+ slowbcopy_frombus(hwp->Base,
(unsigned char *)hwp->TextInfo + TEXT_AMOUNT, TEXT_AMOUNT);
}
#endif /* SAVE_TEXT */
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