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Diffstat (limited to 'sysdeps/unix/sysv/linux/ia64/ioperm.c')
-rw-r--r--sysdeps/unix/sysv/linux/ia64/ioperm.c217
1 files changed, 0 insertions, 217 deletions
diff --git a/sysdeps/unix/sysv/linux/ia64/ioperm.c b/sysdeps/unix/sysv/linux/ia64/ioperm.c
deleted file mode 100644
index 89a0a36d3d..0000000000
--- a/sysdeps/unix/sysv/linux/ia64/ioperm.c
+++ /dev/null
@@ -1,217 +0,0 @@
-/* Copyright (C) 1999, 2000, 2001, 2004 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by David Mosberger-Tang <davidm@hpl.hp.com>.
-
-   The GNU C Library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Lesser General Public
-   License as published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
-
-   The GNU C Library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library; if not, write to the Free
-   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
-   02111-1307 USA.  */
-
-/* I/O access is restricted to ISA port space (ports 0..65535).
-   Modern devices hopefully are sane enough not to put any performance
-   critical registers in i/o space.
-
-   On the first call to ioperm() or iopl(), the entire (E)ISA port
-   space is mapped into the virtual address space at address io.base.
-   mprotect() calls are then used to enable/disable access to ports.
-   Per 4KB page, there are 4 I/O ports.  */
-
-#include <errno.h>
-#include <fcntl.h>
-#include <ctype.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-
-#include <sys/types.h>
-#include <sys/mman.h>
-
-#define MAX_PORT	0x10000
-
-/*
- * Memory fence w/accept.  This should never be used in code that is
- * not IA-64 specific.
- */
-#define __ia64_mf_a()	__asm__ __volatile__ ("mf.a" ::: "memory")
-
-static struct
-  {
-    unsigned long int base;
-    unsigned long int page_mask;
-  }
-io;
-
-__inline__ unsigned long int
-io_offset (unsigned long int port)
-{
-	return ((port >> 2) << 12) | (port & 0xfff);
-}
-
-int
-_ioperm (unsigned long int from, unsigned long int num, int turn_on)
-{
-#if 0
-  unsigned long int addr, len, base;
-#endif
-  unsigned long int base;
-  int prot;
-
-  /* this test isn't as silly as it may look like; consider overflows! */
-  if (from >= MAX_PORT || from + num > MAX_PORT)
-    {
-      __set_errno (EINVAL);
-      return -1;
-    }
-
-  if (turn_on)
-    {
-      if (!io.base)
-	{
-	  unsigned long phys_io_base, len;
-	  int fd;
-
-	  io.page_mask = ~(__getpagesize() - 1);
-
-	  /* get I/O base physical address from ar.k0 as per PRM: */
-	  __asm__ ("mov %0=ar.k0" : "=r"(phys_io_base));
-
-	  /* The O_SYNC flag tells the /dev/mem driver to map the
-             memory uncached: */
-	  fd = __open ("/dev/mem", O_RDWR | O_SYNC);
-	  if (fd < 0)
-	    return -1;
-
-	  len = io_offset (MAX_PORT);
-#if 1
-	  /* see comment below */
-	  base = (unsigned long int) __mmap (0, len, PROT_READ | PROT_WRITE, MAP_SHARED,
-						fd, phys_io_base);
-#else
-	  base = (unsigned long int) __mmap (0, len, PROT_NONE, MAP_SHARED,
-						fd, phys_io_base);
-#endif
-	  __close (fd);
-
-	  if ((long) base == -1)
-	    return -1;
-
-	  io.base = base;
-	}
-      prot = PROT_READ | PROT_WRITE;
-    }
-  else
-    {
-      if (!io.base)
-	return 0;	/* never was turned on... */
-
-      prot = PROT_NONE;
-    }
-#if 0
-  /* We can't do mprotect because that would cause us to lose the
-     uncached flag that the /dev/mem driver turned on.  A MAP_UNCACHED
-     flag seems so much cleaner...  */
-  addr = (io.base + io_offset (from)) & io.page_mask;
-  len  = io.base + io_offset (from + num) - addr;
-  return mprotect ((void *) addr, len, prot);
-#else
-  return 0;
-#endif
-}
-
-int
-_iopl (unsigned int level)
-{
-  if (level > 3)
-    {
-      __set_errno (EINVAL);
-      return -1;
-    }
-  if (level)
-    {
-      int retval = _ioperm (0, MAX_PORT, 1);
-      /* Match the documented error returns of the x86 version.  */
-      if (retval < 0 && errno == EACCES)
-	__set_errno (EPERM);
-      return retval;
-    }
-  return 0;
-}
-
-unsigned int
-_inb (unsigned long int port)
-{
-  volatile unsigned char *addr = (void *) io.base + io_offset (port);
-  unsigned char ret;
-
-  ret = *addr;
-  __ia64_mf_a();
-  return ret;
-}
-
-unsigned int
-_inw (unsigned long int port)
-{
-  volatile unsigned short *addr = (void *) io.base + io_offset (port);
-  unsigned short ret;
-
-  ret = *addr;
-  __ia64_mf_a();
-  return ret;
-}
-
-unsigned int
-_inl (unsigned long int port)
-{
-  volatile unsigned int *addr = (void *) io.base + io_offset (port);
-  unsigned int ret;
-
-  ret = *addr;
-  __ia64_mf_a();
-  return ret;
-}
-
-void
-_outb (unsigned char val, unsigned long int port)
-{
-  volatile unsigned char *addr = (void *) io.base + io_offset (port);
-
-  *addr = val;
-  __ia64_mf_a();
-}
-
-void
-_outw (unsigned short val, unsigned long int port)
-{
-  volatile unsigned short *addr = (void *) io.base + io_offset (port);
-
-  *addr = val;
-  __ia64_mf_a();
-}
-
-void
-_outl (unsigned int val, unsigned long int port)
-{
-  volatile unsigned int *addr = (void *) io.base + io_offset (port);
-
-  *addr = val;
-  __ia64_mf_a();
-}
-
-weak_alias (_ioperm, ioperm);
-weak_alias (_iopl, iopl);
-weak_alias (_inb, inb);
-weak_alias (_inw, inw);
-weak_alias (_inl, inl);
-weak_alias (_outb, outb);
-weak_alias (_outw, outw);
-weak_alias (_outl, outl);