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authorDavid Gibson <david@gibson.dropbear.id.au>2005-11-09 20:56:55 -0500
committerPaul Mackerras <paulus@samba.org>2005-11-09 21:10:38 -0500
commit3ddfbcf19b15ccd25a0b4b2dc2e38000e08de739 (patch)
treeca77158ab291453ed39e87f2d81beef9e8d1a560 /include/asm-powerpc/bug.h
parentf6d3577da14e877b79517c883d1139ee6ad7da45 (diff)
[PATCH] powerpc: Consolidate asm compatibility macros
This patch consolidates macros used to generate assembly for compatibility across different CPUs or configs. A new header, asm-powerpc/asm-compat.h contains the main compatibility macros. It uses some preprocessor magic to make the macros suitable both for use in .S files, and in inline asm in .c files. Headers (bitops.h, uaccess.h, atomic.h, bug.h) which had their own such compatibility macros are changed to use asm-compat.h. ppc_asm.h is now for use in .S files *only*, and a #error enforces that. As such, we're a lot more careless about namespace pollution here than in asm-compat.h. While we're at it, this patch adds a call to the PPC405_ERR77 macro in futex.h which should have had it already, but didn't. Built and booted on pSeries, Maple and iSeries (ARCH=powerpc). Built for 32-bit powermac (ARCH=powerpc) and Walnut (ARCH=ppc). Signed-off-by: David Gibson <dwg@au1.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'include/asm-powerpc/bug.h')
-rw-r--r--include/asm-powerpc/bug.h19
1 files changed, 6 insertions, 13 deletions
diff --git a/include/asm-powerpc/bug.h b/include/asm-powerpc/bug.h
index d625ee55f957..b001ecb3cd99 100644
--- a/include/asm-powerpc/bug.h
+++ b/include/asm-powerpc/bug.h
@@ -1,6 +1,7 @@
1#ifndef _ASM_POWERPC_BUG_H 1#ifndef _ASM_POWERPC_BUG_H
2#define _ASM_POWERPC_BUG_H 2#define _ASM_POWERPC_BUG_H
3 3
4#include <asm/asm-compat.h>
4/* 5/*
5 * Define an illegal instr to trap on the bug. 6 * Define an illegal instr to trap on the bug.
6 * We don't use 0 because that marks the end of a function 7 * We don't use 0 because that marks the end of a function
@@ -11,14 +12,6 @@
11 12
12#ifndef __ASSEMBLY__ 13#ifndef __ASSEMBLY__
13 14
14#ifdef __powerpc64__
15#define BUG_TABLE_ENTRY ".llong"
16#define BUG_TRAP_OP "tdnei"
17#else
18#define BUG_TABLE_ENTRY ".long"
19#define BUG_TRAP_OP "twnei"
20#endif /* __powerpc64__ */
21
22struct bug_entry { 15struct bug_entry {
23 unsigned long bug_addr; 16 unsigned long bug_addr;
24 long line; 17 long line;
@@ -40,16 +33,16 @@ struct bug_entry *find_bug(unsigned long bugaddr);
40 __asm__ __volatile__( \ 33 __asm__ __volatile__( \
41 "1: twi 31,0,0\n" \ 34 "1: twi 31,0,0\n" \
42 ".section __bug_table,\"a\"\n" \ 35 ".section __bug_table,\"a\"\n" \
43 "\t"BUG_TABLE_ENTRY" 1b,%0,%1,%2\n" \ 36 "\t"PPC_LONG" 1b,%0,%1,%2\n" \
44 ".previous" \ 37 ".previous" \
45 : : "i" (__LINE__), "i" (__FILE__), "i" (__FUNCTION__)); \ 38 : : "i" (__LINE__), "i" (__FILE__), "i" (__FUNCTION__)); \
46} while (0) 39} while (0)
47 40
48#define BUG_ON(x) do { \ 41#define BUG_ON(x) do { \
49 __asm__ __volatile__( \ 42 __asm__ __volatile__( \
50 "1: "BUG_TRAP_OP" %0,0\n" \ 43 "1: "PPC_TLNEI" %0,0\n" \
51 ".section __bug_table,\"a\"\n" \ 44 ".section __bug_table,\"a\"\n" \
52 "\t"BUG_TABLE_ENTRY" 1b,%1,%2,%3\n" \ 45 "\t"PPC_LONG" 1b,%1,%2,%3\n" \
53 ".previous" \ 46 ".previous" \
54 : : "r" ((long)(x)), "i" (__LINE__), \ 47 : : "r" ((long)(x)), "i" (__LINE__), \
55 "i" (__FILE__), "i" (__FUNCTION__)); \ 48 "i" (__FILE__), "i" (__FUNCTION__)); \
@@ -57,9 +50,9 @@ struct bug_entry *find_bug(unsigned long bugaddr);
57 50
58#define WARN_ON(x) do { \ 51#define WARN_ON(x) do { \
59 __asm__ __volatile__( \ 52 __asm__ __volatile__( \
60 "1: "BUG_TRAP_OP" %0,0\n" \ 53 "1: "PPC_TLNEI" %0,0\n" \
61 ".section __bug_table,\"a\"\n" \ 54 ".section __bug_table,\"a\"\n" \
62 "\t"BUG_TABLE_ENTRY" 1b,%1,%2,%3\n" \ 55 "\t"PPC_LONG" 1b,%1,%2,%3\n" \
63 ".previous" \ 56 ".previous" \
64 : : "r" ((long)(x)), \ 57 : : "r" ((long)(x)), \
65 "i" (__LINE__ + BUG_WARNING_TRAP), \ 58 "i" (__LINE__ + BUG_WARNING_TRAP), \