path: root/arch/i386/kernel/cpu/mtrr/generic.c
diff options
authorBernhard Kaindl <bk@suse.de>2007-05-02 19:27:17 +0200
committerAndi Kleen <andi@basil.nowhere.org>2007-05-02 19:27:17 +0200
commit2b3b4835c94226681c496de9446d456dcf42ed08 (patch)
treea7f005ccb038107153059691dbabf048b560521d /arch/i386/kernel/cpu/mtrr/generic.c
parent[PATCH] x86-64: Move mtrr prototypes from proto.h to mtrr.h (diff)
[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 '')
1 files changed, 6 insertions, 1 deletions
diff --git a/arch/i386/kernel/cpu/mtrr/generic.c b/arch/i386/kernel/cpu/mtrr/generic.c
index 68b383788882..150cf5055a3c 100644
--- a/arch/i386/kernel/cpu/mtrr/generic.c
+++ b/arch/i386/kernel/cpu/mtrr/generic.c
@@ -37,7 +37,7 @@ get_mtrr_var_range(unsigned int index, struct mtrr_var_range *vr)
rdmsr(MTRRphysMask_MSR(index), vr->mask_lo, vr->mask_hi);
-static void __init
+static void
get_fixed_ranges(mtrr_type * frs)
unsigned int *p = (unsigned int *) frs;
@@ -51,6 +51,11 @@ get_fixed_ranges(mtrr_type * frs)
rdmsr(MTRRfix4K_C0000_MSR + i, p[6 + i * 2], p[7 + i * 2]);
+void mtrr_save_fixed_ranges(void *info)
+ get_fixed_ranges(mtrr_state.fixed_ranges);
static void __init print_fixed(unsigned base, unsigned step, const mtrr_type*types)
unsigned i;