patch-2.4.19 linux-2.4.19/arch/mips/kernel/sysmips.c

• Lines: 99
• Date: Fri Aug 2 17:39:43 2002
• Orig file: linux-2.4.18/arch/mips/kernel/sysmips.c
• Orig date: Mon Jul 2 13:56:40 2001

diff -urN linux-2.4.18/arch/mips/kernel/sysmips.c linux-2.4.19/arch/mips/kernel/sysmips.c
@@ -1,13 +1,11 @@
 /*
- * MIPS specific syscalls
- *
  * This file is subject to the terms and conditions of the GNU General Public
  * License.  See the file "COPYING" in the main directory of this archive
  * for more details.
  *
- * Copyright (C) 1995, 1996, 1997, 2000 by Ralf Baechle
+ * Copyright (C) 1995, 1996, 1997, 2000, 2001 by Ralf Baechle
+ * Copyright (C) 2001 MIPS Technologies, Inc.
  */
-#include <linux/config.h>
 #include <linux/errno.h>
 #include <linux/linkage.h>
 #include <linux/mm.h>
@@ -48,11 +46,10 @@
 }
 
 asmlinkage int
-sys_sysmips(int cmd, int arg1, int arg2, int arg3)
+_sys_sysmips(int cmd, int arg1, int arg2, int arg3)
 {
-	int	*p;
 	char	*name;
-	int	tmp, len, retval, errno;
+	int	tmp, len, retval;
 
 	switch(cmd) {
 	case SETNAME: {
@@ -74,55 +71,10 @@
 		return 0;
 	}
 
-	case MIPS_ATOMIC_SET: {
-#ifdef CONFIG_CPU_HAS_LLSC
-		unsigned int tmp;
-
-		p = (int *) arg1;
-		errno = verify_area(VERIFY_WRITE, p, sizeof(*p));
-		if (errno)
-			return errno;
-		errno = 0;
-
-		__asm__(".set\tpush\t\t\t# sysmips(MIPS_ATOMIC, ...)\n\t"
-			".set\tmips2\n\t"
-			".set\tnoat\n\t"
-			"1:\tll\t%0, %4\n\t"
-			"move\t$1, %3\n\t"
-			"2:\tsc\t$1, %1\n\t"
-			"beqz\t$1, 1b\n\t"
-			".set\tpop\n\t"
-			".section\t.fixup,\"ax\"\n"
-			"3:\tli\t%2, 1\t\t\t# error\n\t"
-			".previous\n\t"
-			".section\t__ex_table,\"a\"\n\t"
-			".word\t1b, 3b\n\t"
-			".word\t2b, 3b\n\t"
-			".previous\n\t"
-			: "=&r" (tmp), "=o" (* (u32 *) p), "=r" (errno)
-			: "r" (arg2), "o" (* (u32 *) p), "2" (errno)
-			: "$1");
-
-		if (errno)
-			return -EFAULT;
-
-		/* We're skipping error handling etc.  */
-		if (current->ptrace & PT_TRACESYS)
-			syscall_trace();
-
-		((struct pt_regs *)&cmd)->regs[2] = tmp;
-		((struct pt_regs *)&cmd)->regs[7] = 0;
-
-		__asm__ __volatile__(
-			"move\t$29, %0\n\t"
-			"j\to32_ret_from_sys_call"
-			: /* No outputs */
-			: "r" (&cmd));
-		/* Unreached */
-#else
-	printk("sys_sysmips(MIPS_ATOMIC_SET, ...) not ready for !CONFIG_CPU_HAS_LLSC\n");
-#endif
-	}
+	case MIPS_ATOMIC_SET:
+		printk(KERN_CRIT "How did I get here?\n");
+		retval = -EINVAL;
+		goto out;
 
 	case MIPS_FIXADE:
 		tmp = current->thread.mflags & ~3;
@@ -131,7 +83,7 @@
 		goto out;
 
 	case FLUSH_CACHE:
-		flush_cache_all();
+		__flush_cache_all();
 		retval = 0;
 		goto out;