diff options
Diffstat (limited to 'arch/arm/cpu/armv8/cache.S')
| -rw-r--r-- | arch/arm/cpu/armv8/cache.S | 50 |
1 files changed, 36 insertions, 14 deletions
diff --git a/arch/arm/cpu/armv8/cache.S b/arch/arm/cpu/armv8/cache.S index d1cee23437..3fe935cf28 100644 --- a/arch/arm/cpu/armv8/cache.S +++ b/arch/arm/cpu/armv8/cache.S @@ -12,6 +12,7 @@ #include <asm/system.h> #include <linux/linkage.h> +#ifndef CONFIG_CMO_BY_VA_ONLY /* * void __asm_dcache_level(level) * @@ -116,6 +117,41 @@ ENTRY(__asm_invalidate_dcache_all) ENDPROC(__asm_invalidate_dcache_all) .popsection +.pushsection .text.__asm_flush_l3_dcache, "ax" +WEAK(__asm_flush_l3_dcache) + mov x0, #0 /* return status as success */ + ret +ENDPROC(__asm_flush_l3_dcache) +.popsection + +.pushsection .text.__asm_invalidate_l3_icache, "ax" +WEAK(__asm_invalidate_l3_icache) + mov x0, #0 /* return status as success */ + ret +ENDPROC(__asm_invalidate_l3_icache) +.popsection + +#else /* CONFIG_CMO_BY_VA */ + +/* + * Define these so that they actively clash with in implementation + * accidentally selecting CONFIG_CMO_BY_VA + */ + +.pushsection .text.__asm_invalidate_l3_icache, "ax" +ENTRY(__asm_invalidate_l3_icache) + mov x0, xzr + ret +ENDPROC(__asm_invalidate_l3_icache) +.popsection +.pushsection .text.__asm_flush_l3_dcache, "ax" +ENTRY(__asm_flush_l3_dcache) + mov x0, xzr + ret +ENDPROC(__asm_flush_l3_dcache) +.popsection +#endif /* CONFIG_CMO_BY_VA */ + /* * void __asm_flush_dcache_range(start, end) * @@ -189,20 +225,6 @@ WEAK(__asm_invalidate_l3_dcache) ENDPROC(__asm_invalidate_l3_dcache) .popsection -.pushsection .text.__asm_flush_l3_dcache, "ax" -WEAK(__asm_flush_l3_dcache) - mov x0, #0 /* return status as success */ - ret -ENDPROC(__asm_flush_l3_dcache) -.popsection - -.pushsection .text.__asm_invalidate_l3_icache, "ax" -WEAK(__asm_invalidate_l3_icache) - mov x0, #0 /* return status as success */ - ret -ENDPROC(__asm_invalidate_l3_icache) -.popsection - /* * void __asm_switch_ttbr(ulong new_ttbr) * |