Use glibc's in/out routines

Let's let glibc do the right thing for dense/sparse selection.

The _alpha_iobase code has been unused since the switch to libpciaccess. It
really should have been killed by fba700f1f6a8976.

Signed-off-by: Matt Turner <mattst88@gmail.com>
Tested-by: Michael Cree <mcree@orcon.net.nz>
Signed-off-by: Keith Packard <keithp@keithp.com>

5 files changed, 18 insertions, 224 deletions

diff --git a/hw/xfree86/common/compiler.h b/hw/xfree86/common/compiler.h
index a450bd676..dc5f157b0 100644
--- a/hw/xfree86/common/compiler.h
+++ b/hw/xfree86/common/compiler.h
@@ -316,46 +316,47 @@ static __inline__ void stw_u(uint16_t val, uint16_t *p)
 /* note that the appropriate setup via "ioperm" needs to be done */
 /*  *before* any inx/outx is done. */
 
-extern _X_EXPORT void (*_alpha_outb)(char val, unsigned long port);
+extern _X_EXPORT void _outb(unsigned char val, unsigned long port);
+extern _X_EXPORT void _outw(unsigned short val, unsigned long port);
+extern _X_EXPORT void _outl(unsigned int val, unsigned long port);
+extern _X_EXPORT unsigned int _inb(unsigned long port);
+extern _X_EXPORT unsigned int _inw(unsigned long port);
+extern _X_EXPORT unsigned int _inl(unsigned long port);
+
 static __inline__ void
 outb(unsigned long port, unsigned char val)
 {
-    _alpha_outb(val, port);
+    _outb(val, port);
 }
 
-extern _X_EXPORT void (*_alpha_outw)(short val, unsigned long port);
 static __inline__ void
 outw(unsigned long port, unsigned short val)
 {
-    _alpha_outw(val, port);
+    _outw(val, port);
 }
 
-extern _X_EXPORT void (*_alpha_outl)(int val, unsigned long port);
 static __inline__ void
 outl(unsigned long port, unsigned int val)
 {
-    _alpha_outl(val, port);
+    _outl(val, port);
 }
 
-extern _X_EXPORT unsigned int (*_alpha_inb)(unsigned long port);
 static __inline__ unsigned int
 inb(unsigned long port)
 {
-  return _alpha_inb(port);
+  return _inb(port);
 }
 
-extern _X_EXPORT unsigned int (*_alpha_inw)(unsigned long port);
 static __inline__ unsigned int
 inw(unsigned long port)
 {
-  return _alpha_inw(port);
+  return _inw(port);
 }
 
-extern _X_EXPORT unsigned int (*_alpha_inl)(unsigned long port);
 static __inline__ unsigned int
 inl(unsigned long port)
 {
-  return _alpha_inl(port);
+  return _inl(port);
 }
 
 #    endif /* linux */
diff --git a/hw/xfree86/os-support/linux/lnx.h b/hw/xfree86/os-support/linux/lnx.h
deleted file mode 100644
index 33363dd3d..000000000
--- a/hw/xfree86/os-support/linux/lnx.h
+++ /dev/null
@@ -1,46 +0,0 @@
-
-#ifdef HAVE_XORG_CONFIG_H
-#include <xorg-config.h>
-#endif
-
-#ifndef LNX_H_
-# ifdef __alpha__
-extern unsigned long _bus_base __P ((void)) __attribute__ ((const));
-extern unsigned long _bus_base_sparse __P ((void)) __attribute__ ((const));
-extern int iopl __P ((int __level));
-
-/* new pciconfig_iobase syscall added in 2.2.15 and 2.3.99 */
-#  include <linux/unistd.h>
-extern long (*_iobase)(unsigned, int, int, int);
-
-/*
- * _iobase deals with the case the __NR_pciconfig_iobase is either undefined
- * or unsupported by the kernel, but we need to make sure that the `which'
- * argument symbols are defined.
- */
-#  ifndef IOBASE_HOSE
-#   define IOBASE_HOSE 		0
-#  endif
-#  ifndef IOBASE_SPARSE_MEM
-#   define IOBASE_SPARSE_MEM	1
-#  endif
-#  ifndef IOBASE_DENSE_MEM
-#   define IOBASE_DENSE_MEM	2
-#  endif
-#  ifndef IOBASE_SPARSE_IO
-#   define IOBASE_SPARSE_IO	3
-#  endif
-#  ifndef IOBASE_DENSE_IO
-#   define IOBASE_DENSE_IO	4
-#  endif
-#  ifndef IOBASE_ROOT_BUS
-#   define IOBASE_ROOT_BUS	5
-#  endif
-#  ifndef IOBASE_FROM_HOSE
-#   define IOBASE_FROM_HOSE	0x10000
-#  endif
-# endif /* __alpha__ */
-
-#define LNX_H_
-
-#endif
diff --git a/hw/xfree86/os-support/linux/lnx_axp.c b/hw/xfree86/os-support/linux/lnx_axp.c
index 10b97b0d6..10fd9e865 100644
--- a/hw/xfree86/os-support/linux/lnx_axp.c
+++ b/hw/xfree86/os-support/linux/lnx_axp.c
@@ -4,10 +4,7 @@
 #endif
 
 #include <stdio.h>
-#include <X11/X.h>
-#include "os.h"
 #include "xf86.h"
-#include "xf86Priv.h"
 #include "shared/xf86Axp.h"
 
 axpDevice lnxGetAXP(void);
@@ -102,86 +99,3 @@ lnxGetAXP(void)
 	count++;
   } while (1);
 }
-
-/*
- * pciconfig_iobase wrappers and dynamic i/o selection
- */
-#include "lnx.h"
-#include <unistd.h>
-#include <errno.h>
-
-/* glibc versions (single hose only) */
-extern void _outb(char val, unsigned long port);
-extern void _outw(short val, unsigned long port);
-extern void _outl(int val, unsigned long port);
-extern unsigned int _inb(unsigned long port);
-extern unsigned int _inw(unsigned long port);
-extern unsigned int _inl(unsigned long port);
-
-extern void _dense_outb(char, unsigned long);
-extern void _dense_outw(short, unsigned long);
-extern void _dense_outl(int, unsigned long);
-extern unsigned int _dense_inb(unsigned long);
-extern unsigned int _dense_inw(unsigned long);
-extern unsigned int _dense_inl(unsigned long);
-
-_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;
-
-static long
-_alpha_iobase(unsigned flags, int hose, int bus, int devfn)
-{
-  if (bus < 0) {
-    bus = hose;
-    flags |= IOBASE_FROM_HOSE;
-  }
-
-  return syscall(__NR_pciconfig_iobase, flags, bus, devfn);
-}
-
-static long
-_alpha_iobase_legacy(unsigned flags, int hose, int bus, int devfn)
-{
-  if (hose > 0) return -ENODEV;
-  if (flags & IOBASE_DENSE_MEM) return _bus_base();
-  if (flags & IOBASE_SPARSE_MEM) return _bus_base_sparse();
-  return 0;
-}
-
-static long 
-_alpha_iobase_query(unsigned flags, int hose, int bus, int devfn)
-{
-  /*
-   * Only use iobase if the syscall is supported *and* it's
-   * a dense io system
-   */
-  if (_alpha_iobase(IOBASE_DENSE_IO, 0, 0, 0) > 0) {
-    /*
-     * The syscall worked and it's a dense io system - take over the
-     * io subsystem
-     */
-    _iobase = _alpha_iobase;
-
-    /* 
-     * Only take over the inx/outx functions if this is a dense I/O
-     * system *and* addressing domains are being used. The dense I/O
-     * routines expect I/O to be mapped (as done in xf86MapLegacyIO)
-     */
-    _alpha_outb = _dense_outb;
-    _alpha_outw = _dense_outw;
-    _alpha_outl = _dense_outl;
-    _alpha_inb = _dense_inb;
-    _alpha_inw = _dense_inw;
-    _alpha_inl = _dense_inl;
-  } else _iobase = _alpha_iobase_legacy;
-
-  return _iobase(flags, hose, bus, devfn);
-}
-
diff --git a/hw/xfree86/os-support/linux/lnx_ev56.c b/hw/xfree86/os-support/linux/lnx_ev56.c
index c65e1cca4..cb3460d29 100644
--- a/hw/xfree86/os-support/linux/lnx_ev56.c
+++ b/hw/xfree86/os-support/linux/lnx_ev56.c
@@ -3,15 +3,8 @@
 #include <xorg-config.h>
 #endif
 
-#include <X11/X.h>
-#include "input.h"
-#include "scrnintstr.h"
-#include "compiler.h"
-
 #include "xf86.h"
-#include "xf86Priv.h"
-#include "xf86_OSlib.h"
-#include "xf86OSpriv.h"
+#include "compiler.h"
 
 int readDense8(pointer Base, register unsigned long Offset);
 int readDense16(pointer Base, register unsigned long Offset);
@@ -88,67 +81,3 @@ writeDense32(int Value, pointer Base, register unsigned long Offset)
     write_mem_barrier();
     *(volatile CARD32 *)((unsigned long)Base+(Offset)) = Value;
 }
-
-
-
-void
-_dense_outb(char val, unsigned long 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) {
-  _outw(val, port);
-  } else {
-  write_mem_barrier();
-  *(volatile CARD16 *)port = val;
-  }
-}
-
-void
-_dense_outl(int val, unsigned long port)
-{
-  if ((port & ~0xffff) == 0) {
-  _outl(val, port);
-  } else {
-  write_mem_barrier();
-  *(volatile CARD32 *)port = val;
-  }
-}
-
-unsigned int
-_dense_inb(unsigned long port)
-{
-  if ((port & ~0xffff) == 0) return _inb(port);
-
-  mem_barrier();
-  return *(volatile CARD8 *)port;
-}
-
-unsigned int
-_dense_inw(unsigned long port)
-{
-  if ((port & ~0xffff) == 0) return _inw(port);
-
-  mem_barrier();
-  return *(volatile CARD16 *)port;
-}
-
-unsigned int
-_dense_inl(unsigned long port)
-{
-  if ((port & ~0xffff) == 0) return _inl(port);
-
-  mem_barrier();
-  return *(volatile CARD32 *)port;
-}
-
-
diff --git a/hw/xfree86/os-support/linux/lnx_video.c b/hw/xfree86/os-support/linux/lnx_video.c
index e159f4691..26a17425a 100644
--- a/hw/xfree86/os-support/linux/lnx_video.c
+++ b/hw/xfree86/os-support/linux/lnx_video.c
@@ -73,15 +73,9 @@ extern int iopl(int __level);
 #endif
 
 #ifdef __alpha__
-
-extern void sethae(unsigned long hae);
-
 # define BUS_BASE bus_base
-
 #else 
-
 #define BUS_BASE (0)
-
 #endif /*  __alpha__ */
 
 /***************************************************************************/
@@ -91,6 +85,10 @@ extern void sethae(unsigned long hae);
 static pointer mapVidMem(int, unsigned long, unsigned long, int);
 static void unmapVidMem(int, pointer, unsigned long);
 #if defined (__alpha__) 
+extern void sethae(unsigned long hae);
+extern unsigned long _bus_base __P ((void)) __attribute__ ((const));
+extern unsigned long _bus_base_sparse __P ((void)) __attribute__ ((const));
+
 static pointer mapVidMemSparse(int, unsigned long, unsigned long, int);
 extern axpDevice lnxGetAXP(void);
 static void unmapVidMemSparse(int, pointer, unsigned long);
@@ -99,7 +97,6 @@ static Bool needSparse;
 static unsigned long hae_thresh;
 static unsigned long hae_mask;
 static unsigned long bus_base;
-static unsigned long sparse_size;
 #endif
 
 #ifdef HAS_MTRR_SUPPORT
@@ -375,7 +372,6 @@ xf86OSInitVidMem(VidMemInfoPtr pVidMem)
 	  if ((needSparse = (_bus_base_sparse() > 0))) {
 	    hae_thresh = xf86AXPParams[axpSystem].hae_thresh;
 	    hae_mask = xf86AXPParams[axpSystem].hae_mask;
-	    sparse_size = xf86AXPParams[axpSystem].size;
 	  }
 	  bus_base = _bus_base();
 	}