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Date: Wed, 9 Dec 2009 05:51:56 +0100
From: Michał Mirosław
<mirq-linux@...e.qmqm.pl>
To: linux-kernel@...r.kernel.org
Cc: Thomas Gleixner <tglx@...utronix.de>,
Ingo Molnar <mingo@...hat.com>,
"H. Peter Anvin" <hpa@...or.com>, x86@...nel.org
Subject: [PATCH 1/7] x86/mtrr: Remove mtrr_ops[]
Remove mtrr_ops[] - it's contents are always the same and all this
registration thing only adds useless code.
Signed-off-by: Michał Mirosław <mirq-linux@...e.qmqm.pl>
---
arch/x86/kernel/cpu/mtrr/amd.c | 7 +------
arch/x86/kernel/cpu/mtrr/centaur.c | 7 +------
arch/x86/kernel/cpu/mtrr/cyrix.c | 7 +------
arch/x86/kernel/cpu/mtrr/main.c | 32 +++++---------------------------
arch/x86/kernel/cpu/mtrr/mtrr.h | 7 +++++--
5 files changed, 13 insertions(+), 47 deletions(-)
diff --git a/arch/x86/kernel/cpu/mtrr/amd.c b/arch/x86/kernel/cpu/mtrr/amd.c
index 33af141..2655064 100644
--- a/arch/x86/kernel/cpu/mtrr/amd.c
+++ b/arch/x86/kernel/cpu/mtrr/amd.c
@@ -108,7 +108,7 @@ amd_validate_add_page(unsigned long base, unsigned long size, unsigned int type)
return 0;
}
-static struct mtrr_ops amd_mtrr_ops = {
+struct mtrr_ops amd_mtrr_ops = {
.vendor = X86_VENDOR_AMD,
.set = amd_set_mtrr,
.get = amd_get_mtrr,
@@ -117,8 +117,3 @@ static struct mtrr_ops amd_mtrr_ops = {
.have_wrcomb = positive_have_wrcomb,
};
-int __init amd_init_mtrr(void)
-{
- set_mtrr_ops(&amd_mtrr_ops);
- return 0;
-}
diff --git a/arch/x86/kernel/cpu/mtrr/centaur.c b/arch/x86/kernel/cpu/mtrr/centaur.c
index de89f14..02b5429 100644
--- a/arch/x86/kernel/cpu/mtrr/centaur.c
+++ b/arch/x86/kernel/cpu/mtrr/centaur.c
@@ -110,7 +110,7 @@ centaur_validate_add_page(unsigned long base, unsigned long size, unsigned int t
return 0;
}
-static struct mtrr_ops centaur_mtrr_ops = {
+struct mtrr_ops centaur_mtrr_ops = {
.vendor = X86_VENDOR_CENTAUR,
.set = centaur_set_mcr,
.get = centaur_get_mcr,
@@ -119,8 +119,3 @@ static struct mtrr_ops centaur_mtrr_ops = {
.have_wrcomb = positive_have_wrcomb,
};
-int __init centaur_init_mtrr(void)
-{
- set_mtrr_ops(¢aur_mtrr_ops);
- return 0;
-}
diff --git a/arch/x86/kernel/cpu/mtrr/cyrix.c b/arch/x86/kernel/cpu/mtrr/cyrix.c
index 228d982..c964690 100644
--- a/arch/x86/kernel/cpu/mtrr/cyrix.c
+++ b/arch/x86/kernel/cpu/mtrr/cyrix.c
@@ -265,7 +265,7 @@ static void cyrix_set_all(void)
post_set();
}
-static struct mtrr_ops cyrix_mtrr_ops = {
+struct mtrr_ops cyrix_mtrr_ops = {
.vendor = X86_VENDOR_CYRIX,
.set_all = cyrix_set_all,
.set = cyrix_set_arr,
@@ -275,8 +275,3 @@ static struct mtrr_ops cyrix_mtrr_ops = {
.have_wrcomb = positive_have_wrcomb,
};
-int __init cyrix_init_mtrr(void)
-{
- set_mtrr_ops(&cyrix_mtrr_ops);
- return 0;
-}
diff --git a/arch/x86/kernel/cpu/mtrr/main.c b/arch/x86/kernel/cpu/mtrr/main.c
index 84e83de..a35e698 100644
--- a/arch/x86/kernel/cpu/mtrr/main.c
+++ b/arch/x86/kernel/cpu/mtrr/main.c
@@ -60,19 +60,11 @@ static DEFINE_MUTEX(mtrr_mutex);
u64 size_or_mask, size_and_mask;
static bool mtrr_aps_delayed_init;
-static struct mtrr_ops *mtrr_ops[X86_VENDOR_NUM];
-
struct mtrr_ops *mtrr_if;
static void set_mtrr(unsigned int reg, unsigned long base,
unsigned long size, mtrr_type type);
-void set_mtrr_ops(struct mtrr_ops *ops)
-{
- if (ops->vendor && ops->vendor < X86_VENDOR_NUM)
- mtrr_ops[ops->vendor] = ops;
-}
-
/* Returns non-zero if we have the write-combining memory type */
static int have_wrcomb(void)
{
@@ -574,20 +566,6 @@ int mtrr_del(int reg, unsigned long base, unsigned long size)
}
EXPORT_SYMBOL(mtrr_del);
-/*
- * HACK ALERT!
- * These should be called implicitly, but we can't yet until all the initcall
- * stuff is done...
- */
-static void __init init_ifs(void)
-{
-#ifndef CONFIG_X86_64
- amd_init_mtrr();
- cyrix_init_mtrr();
- centaur_init_mtrr();
-#endif
-}
-
/* The suspend/resume methods are only for CPU without MTRR. CPU using generic
* MTRR driver doesn't require this
*/
@@ -645,8 +623,6 @@ void __init mtrr_bp_init(void)
{
u32 phys_addr;
- init_ifs();
-
phys_addr = 32;
if (cpu_has_mtrr) {
@@ -683,25 +659,26 @@ void __init mtrr_bp_init(void)
phys_addr = 32;
}
} else {
+#ifdef CONFIG_X86_32
switch (boot_cpu_data.x86_vendor) {
case X86_VENDOR_AMD:
if (cpu_has_k6_mtrr) {
/* Pre-Athlon (K6) AMD CPU MTRRs */
- mtrr_if = mtrr_ops[X86_VENDOR_AMD];
+ mtrr_if = &amd_mtrr_ops;
size_or_mask = 0xfff00000; /* 32 bits */
size_and_mask = 0;
}
break;
case X86_VENDOR_CENTAUR:
if (cpu_has_centaur_mcr) {
- mtrr_if = mtrr_ops[X86_VENDOR_CENTAUR];
+ mtrr_if = ¢aur_mtrr_ops;
size_or_mask = 0xfff00000; /* 32 bits */
size_and_mask = 0;
}
break;
case X86_VENDOR_CYRIX:
if (cpu_has_cyrix_arr) {
- mtrr_if = mtrr_ops[X86_VENDOR_CYRIX];
+ mtrr_if = &cyrix_mtrr_ops;
size_or_mask = 0xfff00000; /* 32 bits */
size_and_mask = 0;
}
@@ -709,6 +686,7 @@ void __init mtrr_bp_init(void)
default:
break;
}
+#endif
}
if (mtrr_if) {
diff --git a/arch/x86/kernel/cpu/mtrr/mtrr.h b/arch/x86/kernel/cpu/mtrr/mtrr.h
index a501dee..ff7af34 100644
--- a/arch/x86/kernel/cpu/mtrr/mtrr.h
+++ b/arch/x86/kernel/cpu/mtrr/mtrr.h
@@ -33,6 +33,11 @@ extern int generic_validate_add_page(unsigned long base, unsigned long size,
unsigned int type);
extern struct mtrr_ops generic_mtrr_ops;
+#ifdef CONFIG_X86_32
+extern struct mtrr_ops amd_mtrr_ops;
+extern struct mtrr_ops centaur_mtrr_ops;
+extern struct mtrr_ops cyrix_mtrr_ops;
+#endif
extern int positive_have_wrcomb(void);
@@ -53,8 +58,6 @@ void fill_mtrr_var_range(unsigned int index,
u32 base_lo, u32 base_hi, u32 mask_lo, u32 mask_hi);
void get_mtrr_state(void);
-extern void set_mtrr_ops(struct mtrr_ops *ops);
-
extern u64 size_or_mask, size_and_mask;
extern struct mtrr_ops *mtrr_if;
--
1.6.4.4
--
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