diff options
| author | Juergen Gross <jgross@suse.com> | 2022-11-02 10:47:09 +0300 |
|---|---|---|
| committer | Borislav Petkov <bp@suse.de> | 2022-11-10 15:12:45 +0300 |
| commit | 0b9a6a8bedbfb38e7c6be4d119a267e6277307cc (patch) | |
| tree | d483fd6ca7b724ff032ceb817bf10531fc2622b0 /arch/x86/include/asm/mtrr.h | |
| parent | 955d0e0805912641230fb46c380aa625f78ecaca (diff) | |
| download | linux-0b9a6a8bedbfb38e7c6be4d119a267e6277307cc.tar.xz | |
x86/mtrr: Add a stop_machine() handler calling only cache_cpu_init()
Instead of having a stop_machine() handler for either a specific
MTRR register or all state at once, add a handler just for calling
cache_cpu_init() if appropriate.
Add functions for calling stop_machine() with this handler as well.
Add a generic replacement for mtrr_bp_restore() and a wrapper for
mtrr_bp_init().
Signed-off-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lore.kernel.org/r/20221102074713.21493-13-jgross@suse.com
Signed-off-by: Borislav Petkov <bp@suse.de>
Diffstat (limited to 'arch/x86/include/asm/mtrr.h')
| -rw-r--r-- | arch/x86/include/asm/mtrr.h | 8 |
1 files changed, 2 insertions, 6 deletions
diff --git a/arch/x86/include/asm/mtrr.h b/arch/x86/include/asm/mtrr.h index 5d31219c8529..f0eeaf6e5f5f 100644 --- a/arch/x86/include/asm/mtrr.h +++ b/arch/x86/include/asm/mtrr.h @@ -25,13 +25,12 @@ #include <uapi/asm/mtrr.h> -void mtrr_bp_init(void); - /* * The following functions are for use by other drivers that cannot use * arch_phys_wc_add and arch_phys_wc_del. */ # ifdef CONFIG_MTRR +void mtrr_bp_init(void); extern u8 mtrr_type_lookup(u64 addr, u64 end, u8 *uniform); extern void mtrr_save_fixed_ranges(void *); extern void mtrr_save_state(void); @@ -42,8 +41,6 @@ extern int mtrr_add_page(unsigned long base, unsigned long size, extern int mtrr_del(int reg, unsigned long base, unsigned long size); extern int mtrr_del_page(int reg, unsigned long base, unsigned long size); extern void mtrr_centaur_report_mcr(int mcr, u32 lo, u32 hi); -extern void mtrr_ap_init(void); -extern void mtrr_aps_init(void); extern void mtrr_bp_restore(void); extern int mtrr_trim_uncached_memory(unsigned long end_pfn); extern int amd_special_default_mtrr(void); @@ -85,8 +82,7 @@ static inline int mtrr_trim_uncached_memory(unsigned long end_pfn) static inline void mtrr_centaur_report_mcr(int mcr, u32 lo, u32 hi) { } -#define mtrr_ap_init() do {} while (0) -#define mtrr_aps_init() do {} while (0) +#define mtrr_bp_init() do {} while (0) #define mtrr_bp_restore() do {} while (0) #define mtrr_disable() do {} while (0) #define mtrr_enable() do {} while (0) |