diff options
| author | Christoph Hellwig <hch@lst.de> | 2021-12-15 17:56:11 +0100 |
|---|---|---|
| committer | Borislav Petkov <bp@suse.de> | 2021-12-22 19:50:26 +0100 |
| commit | 4d5cff69fbddbbefef2903faa48263cc5d3ca382 (patch) | |
| tree | 73c3658b7700ccd9eeb34799d4f2c49c1097e4c0 /arch/x86/include/asm/mtrr.h | |
| parent | x86/sev-es: Use insn_decode_mmio() for MMIO implementation (diff) | |
| download | linux-4d5cff69fbddbbefef2903faa48263cc5d3ca382.tar.xz linux-4d5cff69fbddbbefef2903faa48263cc5d3ca382.zip | |
x86/mtrr: Remove the mtrr_bp_init() stub
Add an IS_ENABLED() check in setup_arch() and call pat_disable()
directly if MTRRs are not supported. This allows to remove the
<asm/memtype.h> include in <asm/mtrr.h>, which pull in lowlevel x86
headers that should not be included for UML builds and will cause build
warnings with a following patch.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lore.kernel.org/r/20211215165612.554426-2-hch@lst.de
Diffstat (limited to 'arch/x86/include/asm/mtrr.h')
| -rw-r--r-- | arch/x86/include/asm/mtrr.h | 8 |
1 files changed, 1 insertions, 7 deletions
diff --git a/arch/x86/include/asm/mtrr.h b/arch/x86/include/asm/mtrr.h index 829df26fd7a3..76d726074c16 100644 --- a/arch/x86/include/asm/mtrr.h +++ b/arch/x86/include/asm/mtrr.h @@ -24,8 +24,8 @@ #define _ASM_X86_MTRR_H #include <uapi/asm/mtrr.h> -#include <asm/memtype.h> +void mtrr_bp_init(void); /* * The following functions are for use by other drivers that cannot use @@ -43,7 +43,6 @@ 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_bp_init(void); extern void set_mtrr_aps_delayed_init(void); extern void mtrr_aps_init(void); extern void mtrr_bp_restore(void); @@ -84,11 +83,6 @@ static inline int mtrr_trim_uncached_memory(unsigned long end_pfn) static inline void mtrr_centaur_report_mcr(int mcr, u32 lo, u32 hi) { } -static inline void mtrr_bp_init(void) -{ - pat_disable("PAT support disabled because CONFIG_MTRR is disabled in the kernel."); -} - #define mtrr_ap_init() do {} while (0) #define set_mtrr_aps_delayed_init() do {} while (0) #define mtrr_aps_init() do {} while (0) |