diff options
Diffstat (limited to 'arch/mips/mm/pg-r4k.c')
| -rw-r--r-- | arch/mips/mm/pg-r4k.c | 21 |
1 files changed, 9 insertions, 12 deletions
diff --git a/arch/mips/mm/pg-r4k.c b/arch/mips/mm/pg-r4k.c index 9f8b16541577..f51e180072e3 100644 --- a/arch/mips/mm/pg-r4k.c +++ b/arch/mips/mm/pg-r4k.c @@ -25,7 +25,10 @@ #include <asm/cpu.h> #include <asm/war.h> -#define half_scache_line_size() (cpu_scache_line_size() >> 1) +#define half_scache_line_size() (cpu_scache_line_size() >> 1) +#define cpu_is_r4600_v1_x() ((read_c0_prid() & 0xfffffff0) == 0x00002010) +#define cpu_is_r4600_v2_x() ((read_c0_prid() & 0xfffffff0) == 0x00002020) + /* * Maximum sizes: @@ -198,15 +201,15 @@ static inline void build_cdex_p(void) if (store_offset & (cpu_dcache_line_size() - 1)) return; - if (R4600_V1_HIT_CACHEOP_WAR && ((read_c0_prid() & 0xfff0) == 0x2010)) { + if (R4600_V1_HIT_CACHEOP_WAR && cpu_is_r4600_v1_x()) { build_nop(); build_nop(); build_nop(); build_nop(); } - if (R4600_V2_HIT_CACHEOP_WAR && ((read_c0_prid() & 0xfff0) == 0x2020)) - build_insn_word(0x8c200000); /* lw $zero, ($at) */ + if (R4600_V2_HIT_CACHEOP_WAR && cpu_is_r4600_v2_x()) + build_insn_word(0x3c01a000); /* lui $at, 0xa000 */ mi.c_format.opcode = cache_op; mi.c_format.rs = 4; /* $a0 */ @@ -361,7 +364,7 @@ void __init build_clear_page(void) build_addiu_a2_a0(PAGE_SIZE - (cpu_has_prefetch ? pref_offset_clear : 0)); - if (R4600_V2_HIT_CACHEOP_WAR && ((read_c0_prid() & 0xfff0) == 0x2020)) + if (R4600_V2_HIT_CACHEOP_WAR && cpu_is_r4600_v2_x()) build_insn_word(0x3c01a000); /* lui $at, 0xa000 */ dest = label(); @@ -404,9 +407,6 @@ dest = label(); build_jr_ra(); - flush_icache_range((unsigned long)&clear_page_array, - (unsigned long) epc); - BUG_ON(epc > clear_page_array + ARRAY_SIZE(clear_page_array)); } @@ -420,7 +420,7 @@ void __init build_copy_page(void) build_addiu_a2_a0(PAGE_SIZE - (cpu_has_prefetch ? pref_offset_copy : 0)); - if (R4600_V2_HIT_CACHEOP_WAR && ((read_c0_prid() & 0xfff0) == 0x2020)) + if (R4600_V2_HIT_CACHEOP_WAR && cpu_is_r4600_v2_x()) build_insn_word(0x3c01a000); /* lui $at, 0xa000 */ dest = label(); @@ -482,8 +482,5 @@ dest = label(); build_jr_ra(); - flush_icache_range((unsigned long)©_page_array, - (unsigned long) epc); - BUG_ON(epc > copy_page_array + ARRAY_SIZE(copy_page_array)); } |