From 605b7ef7b79cee8e36ae5c48700e1a1eec74d38a Mon Sep 17 00:00:00 2001 From: Kevin Cernekee Date: Thu, 23 Apr 2009 17:36:53 -0700 Subject: [PATCH] MIPS: Support 64-byte D-cache line size Signed-off-by: Kevin Cernekee Signed-off-by: Ralf Baechle --- arch/mips/include/asm/r4kcache.h | 1 + arch/mips/mm/c-r4k.c | 12 ++++++++++++ 2 files changed, 13 insertions(+) diff --git a/arch/mips/include/asm/r4kcache.h b/arch/mips/include/asm/r4kcache.h index 4c140db3678..387bf59f1e3 100644 --- a/arch/mips/include/asm/r4kcache.h +++ b/arch/mips/include/asm/r4kcache.h @@ -399,6 +399,7 @@ __BUILD_BLAST_CACHE(s, scache, Index_Writeback_Inv_SD, Hit_Writeback_Inv_SD, 16) __BUILD_BLAST_CACHE(d, dcache, Index_Writeback_Inv_D, Hit_Writeback_Inv_D, 32) __BUILD_BLAST_CACHE(i, icache, Index_Invalidate_I, Hit_Invalidate_I, 32) __BUILD_BLAST_CACHE(s, scache, Index_Writeback_Inv_SD, Hit_Writeback_Inv_SD, 32) +__BUILD_BLAST_CACHE(d, dcache, Index_Writeback_Inv_D, Hit_Writeback_Inv_D, 64) __BUILD_BLAST_CACHE(i, icache, Index_Invalidate_I, Hit_Invalidate_I, 64) __BUILD_BLAST_CACHE(s, scache, Index_Writeback_Inv_SD, Hit_Writeback_Inv_SD, 64) __BUILD_BLAST_CACHE(s, scache, Index_Writeback_Inv_SD, Hit_Writeback_Inv_SD, 128) diff --git a/arch/mips/mm/c-r4k.c b/arch/mips/mm/c-r4k.c index 171951d2305..71fe4cb778c 100644 --- a/arch/mips/mm/c-r4k.c +++ b/arch/mips/mm/c-r4k.c @@ -100,6 +100,12 @@ static inline void r4k_blast_dcache_page_dc32(unsigned long addr) blast_dcache32_page(addr); } +static inline void r4k_blast_dcache_page_dc64(unsigned long addr) +{ + R4600_HIT_CACHEOP_WAR_IMPL; + blast_dcache64_page(addr); +} + static void __cpuinit r4k_blast_dcache_page_setup(void) { unsigned long dc_lsize = cpu_dcache_line_size(); @@ -110,6 +116,8 @@ static void __cpuinit r4k_blast_dcache_page_setup(void) r4k_blast_dcache_page = blast_dcache16_page; else if (dc_lsize == 32) r4k_blast_dcache_page = r4k_blast_dcache_page_dc32; + else if (dc_lsize == 64) + r4k_blast_dcache_page = r4k_blast_dcache_page_dc64; } static void (* r4k_blast_dcache_page_indexed)(unsigned long addr); @@ -124,6 +132,8 @@ static void __cpuinit r4k_blast_dcache_page_indexed_setup(void) r4k_blast_dcache_page_indexed = blast_dcache16_page_indexed; else if (dc_lsize == 32) r4k_blast_dcache_page_indexed = blast_dcache32_page_indexed; + else if (dc_lsize == 64) + r4k_blast_dcache_page_indexed = blast_dcache64_page_indexed; } static void (* r4k_blast_dcache)(void); @@ -138,6 +148,8 @@ static void __cpuinit r4k_blast_dcache_setup(void) r4k_blast_dcache = blast_dcache16; else if (dc_lsize == 32) r4k_blast_dcache = blast_dcache32; + else if (dc_lsize == 64) + r4k_blast_dcache = blast_dcache64; } /* force code alignment (used for TX49XX_ICACHE_INDEX_INV_WAR) */ -- 2.32.0.93.g670b81a890