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authorShaohua Li <shaohua.li@intel.com>2005-07-07 17:56:38 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2005-07-07 18:23:42 -0700
commit3b520b238e018ef0e9d11c9115d5e7d9419c4ef9 (patch)
tree8b9bf3ccf2dd13dbbbcb4a3ff5028a351817b657 /include
parent01d299367fe868851a632cfbdb606845f57682aa (diff)
downloadop-kernel-dev-3b520b238e018ef0e9d11c9115d5e7d9419c4ef9.zip
op-kernel-dev-3b520b238e018ef0e9d11c9115d5e7d9419c4ef9.tar.gz
[PATCH] MTRR suspend/resume cleanup
There has been some discuss about solving the SMP MTRR suspend/resume breakage, but I didn't find a patch for it. This is an intent for it. The basic idea is moving mtrr initializing into cpu_identify for all APs (so it works for cpu hotplug). For BP, restore_processor_state is responsible for restoring MTRR. Signed-off-by: Shaohua Li <shaohua.li@intel.com> Acked-by: Andi Kleen <ak@muc.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include')
-rw-r--r--include/asm-i386/processor.h8
-rw-r--r--include/asm-x86_64/proto.h7
2 files changed, 15 insertions, 0 deletions
diff --git a/include/asm-i386/processor.h b/include/asm-i386/processor.h
index 6f0f93d..5d06e6b 100644
--- a/include/asm-i386/processor.h
+++ b/include/asm-i386/processor.h
@@ -694,4 +694,12 @@ extern unsigned long boot_option_idle_override;
extern void enable_sep_cpu(void);
extern int sysenter_setup(void);
+#ifdef CONFIG_MTRR
+extern void mtrr_ap_init(void);
+extern void mtrr_bp_init(void);
+#else
+#define mtrr_ap_init() do {} while (0)
+#define mtrr_bp_init() do {} while (0)
+#endif
+
#endif /* __ASM_I386_PROCESSOR_H */
diff --git a/include/asm-x86_64/proto.h b/include/asm-x86_64/proto.h
index f2f0736..6c813eb 100644
--- a/include/asm-x86_64/proto.h
+++ b/include/asm-x86_64/proto.h
@@ -15,6 +15,13 @@ extern void pda_init(int);
extern void early_idt_handler(void);
extern void mcheck_init(struct cpuinfo_x86 *c);
+#ifdef CONFIG_MTRR
+extern void mtrr_ap_init(void);
+extern void mtrr_bp_init(void);
+#else
+#define mtrr_ap_init() do {} while (0)
+#define mtrr_bp_init() do {} while (0)
+#endif
extern void init_memory_mapping(unsigned long start, unsigned long end);
extern void system_call(void);
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