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authorGreg Ungerer <gerg@snapgear.com>2008-05-23 03:31:39 -0400
committerRussell King <rmk+kernel@arm.linux.org.uk>2008-05-23 08:50:08 -0400
commit415ad1e50abcc86c235a42fbab57f2b6134412d7 (patch)
tree544076100f62d1210a8f4babe2fed7f62afa92c5 /include
parent66aaeff1c27545909e502546120be2c5432394e3 (diff)
[ARM] 5053/1: define before use of processor_id
For the simple read_cpuid() macro case the variable processor_id has no definition on use of the macro. Add an extern for it. Move all the processor ID macros into the #ifndef __ASSEMBLEY__ block. Signed-off-by: Greg Ungerer <gerg@uclinux.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'include')
-rw-r--r--include/asm-arm/system.h29
1 files changed, 15 insertions, 14 deletions
diff --git a/include/asm-arm/system.h b/include/asm-arm/system.h
index 6335de9a2bb3..514af792a598 100644
--- a/include/asm-arm/system.h
+++ b/include/asm-arm/system.h
@@ -48,20 +48,6 @@
48#define CPUID_TCM 2 48#define CPUID_TCM 2
49#define CPUID_TLBTYPE 3 49#define CPUID_TLBTYPE 3
50 50
51#ifdef CONFIG_CPU_CP15
52#define read_cpuid(reg) \
53 ({ \
54 unsigned int __val; \
55 asm("mrc p15, 0, %0, c0, c0, " __stringify(reg) \
56 : "=r" (__val) \
57 : \
58 : "cc"); \
59 __val; \
60 })
61#else
62#define read_cpuid(reg) (processor_id)
63#endif
64
65/* 51/*
66 * This is used to ensure the compiler did actually allocate the register we 52 * This is used to ensure the compiler did actually allocate the register we
67 * asked it for some inline assembly sequences. Apparently we can't trust 53 * asked it for some inline assembly sequences. Apparently we can't trust
@@ -78,6 +64,21 @@
78#include <linux/stringify.h> 64#include <linux/stringify.h>
79#include <linux/irqflags.h> 65#include <linux/irqflags.h>
80 66
67#ifdef CONFIG_CPU_CP15
68#define read_cpuid(reg) \
69 ({ \
70 unsigned int __val; \
71 asm("mrc p15, 0, %0, c0, c0, " __stringify(reg) \
72 : "=r" (__val) \
73 : \
74 : "cc"); \
75 __val; \
76 })
77#else
78extern unsigned int processor_id;
79#define read_cpuid(reg) (processor_id)
80#endif
81
81/* 82/*
82 * The CPU ID never changes at run time, so we might as well tell the 83 * The CPU ID never changes at run time, so we might as well tell the
83 * compiler that it's constant. Use this function to read the CPU ID 84 * compiler that it's constant. Use this function to read the CPU ID