X-Git-Url: http://git.rot13.org/?a=blobdiff_plain;f=include%2Fasm-i386%2Falternative.h;h=b01a7ec409ced2397bc8529051930dd4e3413b67;hb=8ac773b4f73afa6fd66695131103944b975d5d5c;hp=e201decea0c9b70bf461714af4cc07bf4b27edcc;hpb=7d14f145f839b5d0d221ea209b4998f93267e2ec;p=powerpc.git diff --git a/include/asm-i386/alternative.h b/include/asm-i386/alternative.h index e201decea0..b01a7ec409 100644 --- a/include/asm-i386/alternative.h +++ b/include/asm-i386/alternative.h @@ -3,6 +3,10 @@ #ifdef __KERNEL__ +#include + +#include + struct alt_instr { u8 *instr; /* original instruction */ u8 *replacement; @@ -15,11 +19,19 @@ struct alt_instr { extern void apply_alternatives(struct alt_instr *start, struct alt_instr *end); struct module; +#ifdef CONFIG_SMP extern void alternatives_smp_module_add(struct module *mod, char *name, void *locks, void *locks_end, void *text, void *text_end); extern void alternatives_smp_module_del(struct module *mod); extern void alternatives_smp_switch(int smp); +#else +static inline void alternatives_smp_module_add(struct module *mod, char *name, + void *locks, void *locks_end, + void *text, void *text_end) {} +static inline void alternatives_smp_module_del(struct module *mod) {} +static inline void alternatives_smp_switch(int smp) {} +#endif #endif @@ -76,9 +88,6 @@ extern void alternatives_smp_switch(int smp); /* * Alternative inline assembly for SMP. * - * alternative_smp() takes two versions (SMP first, UP second) and is - * for more complex stuff such as spinlocks. - * * The LOCK_PREFIX macro defined here replaces the LOCK and * LOCK_PREFIX macros used everywhere in the source tree. * @@ -98,21 +107,6 @@ extern void alternatives_smp_switch(int smp); */ #ifdef CONFIG_SMP -#define alternative_smp(smpinstr, upinstr, args...) \ - asm volatile ("661:\n\t" smpinstr "\n662:\n" \ - ".section .smp_altinstructions,\"a\"\n" \ - " .align 4\n" \ - " .long 661b\n" /* label */ \ - " .long 663f\n" /* new instruction */ \ - " .byte 0x68\n" /* X86_FEATURE_UP */ \ - " .byte 662b-661b\n" /* sourcelen */ \ - " .byte 664f-663f\n" /* replacementlen */ \ - ".previous\n" \ - ".section .smp_altinstr_replacement,\"awx\"\n" \ - "663:\n\t" upinstr "\n" /* replacement */ \ - "664:\n\t.fill 662b-661b,1,0x42\n" /* space for original */ \ - ".previous" : args) - #define LOCK_PREFIX \ ".section .smp_locks,\"a\"\n" \ " .align 4\n" \ @@ -121,8 +115,6 @@ extern void alternatives_smp_switch(int smp); "661:\n\tlock; " #else /* ! CONFIG_SMP */ -#define alternative_smp(smpinstr, upinstr, args...) \ - asm volatile (upinstr : args) #define LOCK_PREFIX "" #endif