diff options
Diffstat (limited to 'arch/blackfin/mach-common/cache.S')
| -rw-r--r-- | arch/blackfin/mach-common/cache.S | 38 |
1 files changed, 32 insertions, 6 deletions
diff --git a/arch/blackfin/mach-common/cache.S b/arch/blackfin/mach-common/cache.S index ab4a925..9f4dd35 100644 --- a/arch/blackfin/mach-common/cache.S +++ b/arch/blackfin/mach-common/cache.S @@ -11,12 +11,6 @@ #include <asm/cache.h> #include <asm/page.h> -#ifdef CONFIG_CACHE_FLUSH_L1 -.section .l1.text -#else -.text -#endif - /* 05000443 - IFLUSH cannot be last instruction in hardware loop */ #if ANOMALY_05000443 # define BROK_FLUSH_INST "IFLUSH" @@ -68,11 +62,43 @@ RTS; .endm +#ifdef CONFIG_ICACHE_FLUSH_L1 +.section .l1.text +#else +.text +#endif + /* Invalidate all instruction cache lines assocoiated with this memory area */ +#ifdef CONFIG_SMP +# define _blackfin_icache_flush_range _blackfin_icache_flush_range_l1 +#endif ENTRY(_blackfin_icache_flush_range) do_flush IFLUSH ENDPROC(_blackfin_icache_flush_range) +#ifdef CONFIG_SMP +.text +# undef _blackfin_icache_flush_range +ENTRY(_blackfin_icache_flush_range) + p0.L = LO(DSPID); + p0.H = HI(DSPID); + r3 = [p0]; + r3 = r3.b (z); + p2 = r3; + p0.L = _blackfin_iflush_l1_entry; + p0.H = _blackfin_iflush_l1_entry; + p0 = p0 + (p2 << 2); + p1 = [p0]; + jump (p1); +ENDPROC(_blackfin_icache_flush_range) +#endif + +#ifdef CONFIG_DCACHE_FLUSH_L1 +.section .l1.text +#else +.text +#endif + /* Throw away all D-cached data in specified region without any obligation to * write them back. Since the Blackfin ISA does not have an "invalidate" * instruction, we use flush/invalidate. Perhaps as a speed optimization we |