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| author | Vineet Gupta <vgupta@synopsys.com> | 2013-09-05 09:47:49 +0200 |
|---|---|---|
| committer | Vineet Gupta <vgupta@synopsys.com> | 2013-11-06 06:11:37 +0100 |
| commit | 63d2dfdbf4b12a6993adf5005fd308d611d453d6 (patch) | |
| tree | b4878a30a70b513ff081f2a4ec0f61a683d0e029 /arch/arc/mm | |
| parent | ARC: cacheflush refactor #1: push aux reg ascertaining into leaf routine (diff) | |
| download | linux-63d2dfdbf4b12a6993adf5005fd308d611d453d6.tar.xz linux-63d2dfdbf4b12a6993adf5005fd308d611d453d6.zip | |
ARC: cacheflush refactor #2: I and D caches lines to have same size
Having them be different seems an obscure configuration.
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Diffstat (limited to 'arch/arc/mm')
| -rw-r--r-- | arch/arc/mm/cache_arc700.c | 30 |
1 files changed, 15 insertions, 15 deletions
diff --git a/arch/arc/mm/cache_arc700.c b/arch/arc/mm/cache_arc700.c index 2787e5a2c306..0be5b2075701 100644 --- a/arch/arc/mm/cache_arc700.c +++ b/arch/arc/mm/cache_arc700.c @@ -182,7 +182,7 @@ void arc_cache_init(void) #ifdef CONFIG_ARC_HAS_ICACHE /* 1. Confirm some of I-cache params which Linux assumes */ - if (ic->line_len != ARC_ICACHE_LINE_LEN) + if (ic->line_len != L1_CACHE_BYTES) panic("Cache H/W doesn't match kernel Config"); if (ic->ver != CONFIG_ARC_MMU_VER) @@ -205,7 +205,7 @@ chk_dc: return; #ifdef CONFIG_ARC_HAS_DCACHE - if (dc->line_len != ARC_DCACHE_LINE_LEN) + if (dc->line_len != L1_CACHE_BYTES) panic("Cache H/W doesn't match kernel Config"); /* check for D-Cache aliasing */ @@ -298,7 +298,7 @@ static inline void __dc_entire_op(const int cacheop) static inline void __dc_line_loop(unsigned long paddr, unsigned long vaddr, unsigned long sz, const int cacheop) { - /* which MMU cmd: INV (discard or wback-n-discard) OR FLUSH (wback) */ + /* d$ cmd: INV (discard or wback-n-discard) OR FLUSH (wback) */ const int aux = cacheop & OP_INV ? ARC_REG_DC_IVDL : ARC_REG_DC_FLDL; int num_lines; @@ -309,12 +309,12 @@ static inline void __dc_line_loop(unsigned long paddr, unsigned long vaddr, * -@sz will be integral multiple of line size (being page sized). */ if (!(__builtin_constant_p(sz) && sz == PAGE_SIZE)) { - sz += paddr & ~DCACHE_LINE_MASK; - paddr &= DCACHE_LINE_MASK; - vaddr &= DCACHE_LINE_MASK; + sz += paddr & ~CACHE_LINE_MASK; + paddr &= CACHE_LINE_MASK; + vaddr &= CACHE_LINE_MASK; } - num_lines = DIV_ROUND_UP(sz, ARC_DCACHE_LINE_LEN); + num_lines = DIV_ROUND_UP(sz, L1_CACHE_BYTES); #if (CONFIG_ARC_MMU_VER <= 2) paddr |= (vaddr >> PAGE_SHIFT) & 0x1F; @@ -329,12 +329,12 @@ static inline void __dc_line_loop(unsigned long paddr, unsigned long vaddr, write_aux_reg(ARC_REG_DC_PTAG, paddr); write_aux_reg(aux, vaddr); - vaddr += ARC_DCACHE_LINE_LEN; + vaddr += L1_CACHE_BYTES; #else /* paddr contains stuffed vaddrs bits */ write_aux_reg(aux, paddr); #endif - paddr += ARC_DCACHE_LINE_LEN; + paddr += L1_CACHE_BYTES; } } @@ -443,12 +443,12 @@ static void __ic_line_inv_vaddr(unsigned long paddr, unsigned long vaddr, * -@sz will be integral multiple of line size (being page sized). */ if (!(__builtin_constant_p(sz) && sz == PAGE_SIZE)) { - sz += paddr & ~ICACHE_LINE_MASK; - paddr &= ICACHE_LINE_MASK; - vaddr &= ICACHE_LINE_MASK; + sz += paddr & ~CACHE_LINE_MASK; + paddr &= CACHE_LINE_MASK; + vaddr &= CACHE_LINE_MASK; } - num_lines = DIV_ROUND_UP(sz, ARC_ICACHE_LINE_LEN); + num_lines = DIV_ROUND_UP(sz, L1_CACHE_BYTES); #if (CONFIG_ARC_MMU_VER <= 2) /* bits 17:13 of vaddr go as bits 4:0 of paddr */ @@ -463,12 +463,12 @@ static void __ic_line_inv_vaddr(unsigned long paddr, unsigned long vaddr, /* index bits come from vaddr */ write_aux_reg(ARC_REG_IC_IVIL, vaddr); - vaddr += ARC_ICACHE_LINE_LEN; + vaddr += L1_CACHE_BYTES; #else /* paddr contains stuffed vaddrs bits */ write_aux_reg(ARC_REG_IC_IVIL, paddr); #endif - paddr += ARC_ICACHE_LINE_LEN; + paddr += L1_CACHE_BYTES; } local_irq_restore(flags); } |