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| author | Bernhard Kaindl <bk@suse.de> | 2007-05-02 19:27:17 +0200 |
|---|---|---|
| committer | Andi Kleen <andi@basil.nowhere.org> | 2007-05-02 19:27:17 +0200 |
| commit | 2b3b4835c94226681c496de9446d456dcf42ed08 (patch) | |
| tree | a7f005ccb038107153059691dbabf048b560521d /include | |
| parent | 856f44ff4af6e57fdc39a8b2bec498c88438bd27 (diff) | |
| download | lwn-2b3b4835c94226681c496de9446d456dcf42ed08.tar.gz lwn-2b3b4835c94226681c496de9446d456dcf42ed08.zip | |
[PATCH] x86: Adds mtrr_save_fixed_ranges() for use in two later patches.
In this current implementation which is used in other patches,
mtrr_save_fixed_ranges() accepts a dummy void pointer because
in the current implementation of one of these patches, this
function may be called from smp_call_function_single() which
requires that this function takes a void pointer argument.
This function calls get_fixed_ranges(), passing mtrr_state.fixed_ranges
which is the element of the static struct which stores our current
backup of the fixed-range MTRR values which all CPUs shall be
using.
Because mtrr_save_fixed_ranges calls get_fixed_ranges after
kernel initialisation time, __init needs to be removed from
the declaration of get_fixed_ranges().
If CONFIG_MTRR is not set, we define mtrr_save_fixed_ranges
as an empty statement because there is nothing to do.
AK: Moved prototypes for x86-64 around to fix warnings
Signed-off-by: Bernhard Kaindl <bk@suse.de>
Signed-off-by: Andi Kleen <ak@suse.de>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Andi Kleen <ak@suse.de>
Cc: Dave Jones <davej@codemonkey.org.uk>
Diffstat (limited to 'include')
| -rw-r--r-- | include/asm-i386/mtrr.h | 2 | ||||
| -rw-r--r-- | include/asm-x86_64/mtrr.h | 2 |
2 files changed, 4 insertions, 0 deletions
diff --git a/include/asm-i386/mtrr.h b/include/asm-i386/mtrr.h index 07f063ae26ea..02a41b99bd7e 100644 --- a/include/asm-i386/mtrr.h +++ b/include/asm-i386/mtrr.h @@ -69,6 +69,7 @@ struct mtrr_gentry /* The following functions are for use by other drivers */ # ifdef CONFIG_MTRR +extern void mtrr_save_fixed_ranges(void *); extern int mtrr_add (unsigned long base, unsigned long size, unsigned int type, char increment); extern int mtrr_add_page (unsigned long base, unsigned long size, @@ -79,6 +80,7 @@ extern void mtrr_centaur_report_mcr(int mcr, u32 lo, u32 hi); extern void mtrr_ap_init(void); extern void mtrr_bp_init(void); # else +#define mtrr_save_fixed_ranges(arg) do {} while (0) static __inline__ int mtrr_add (unsigned long base, unsigned long size, unsigned int type, char increment) { diff --git a/include/asm-x86_64/mtrr.h b/include/asm-x86_64/mtrr.h index 66809eca98cf..1b326cbb9305 100644 --- a/include/asm-x86_64/mtrr.h +++ b/include/asm-x86_64/mtrr.h @@ -138,9 +138,11 @@ struct mtrr_gentry32 #ifdef CONFIG_MTRR extern void mtrr_ap_init(void); extern void mtrr_bp_init(void); +extern void mtrr_save_fixed_ranges(void *); #else #define mtrr_ap_init() do {} while (0) #define mtrr_bp_init() do {} while (0) +#define mtrr_save_fixed_ranges(arg) do {} while (0) #endif #endif /* __KERNEL__ */ |