diff options
Diffstat (limited to 'arch/arm/kernel/fiq.c')
| -rw-r--r-- | arch/arm/kernel/fiq.c | 24 |
1 files changed, 15 insertions, 9 deletions
diff --git a/arch/arm/kernel/fiq.c b/arch/arm/kernel/fiq.c index 2adda11f712..918875d96d5 100644 --- a/arch/arm/kernel/fiq.c +++ b/arch/arm/kernel/fiq.c @@ -47,6 +47,11 @@ #include <asm/irq.h> #include <asm/traps.h> +#define FIQ_OFFSET ({ \ + extern void *vector_fiq_offset; \ + (unsigned)&vector_fiq_offset; \ + }) + static unsigned long no_fiq_insn; /* Default reacquire function @@ -79,14 +84,14 @@ int show_fiq_list(struct seq_file *p, int prec) void set_fiq_handler(void *start, unsigned int length) { -#if defined(CONFIG_CPU_USE_DOMAINS) - memcpy((void *)0xffff001c, start, length); -#else - memcpy(vectors_page + 0x1c, start, length); -#endif - flush_icache_range(0xffff001c, 0xffff001c + length); - if (!vectors_high()) - flush_icache_range(0x1c, 0x1c + length); + void *base = vectors_page; + unsigned offset = FIQ_OFFSET; + + memcpy(base + offset, start, length); + if (!cache_is_vipt_nonaliasing()) + flush_icache_range((unsigned long)base + offset, offset + + length); + flush_icache_range(0xffff0000 + offset, 0xffff0000 + offset + length); } int claim_fiq(struct fiq_handler *f) @@ -144,6 +149,7 @@ EXPORT_SYMBOL(disable_fiq); void __init init_FIQ(int start) { - no_fiq_insn = *(unsigned long *)0xffff001c; + unsigned offset = FIQ_OFFSET; + no_fiq_insn = *(unsigned long *)(0xffff0000 + offset); fiq_start = start; } |