forked from luck/tmp_suning_uos_patched
6b3087c64a
Blackfin dual core BF561 processor can support SMP like features. https://docs.blackfin.uclinux.org/doku.php?id=linux-kernel:smp-like In this patch, we provide SMP extend to Blackfin header files and machine common code Signed-off-by: Graf Yang <graf.yang@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
59 lines
1.1 KiB
C
59 lines
1.1 KiB
C
/*
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* include/asm-blackfin/cache.h
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*/
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#ifndef __ARCH_BLACKFIN_CACHE_H
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#define __ARCH_BLACKFIN_CACHE_H
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/*
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* Bytes per L1 cache line
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* Blackfin loads 32 bytes for cache
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*/
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#define L1_CACHE_SHIFT 5
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#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
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#define SMP_CACHE_BYTES L1_CACHE_BYTES
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#ifdef CONFIG_SMP
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#define __cacheline_aligned
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#else
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#define ____cacheline_aligned
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/*
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* Put cacheline_aliged data to L1 data memory
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*/
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#ifdef CONFIG_CACHELINE_ALIGNED_L1
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#define __cacheline_aligned \
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__attribute__((__aligned__(L1_CACHE_BYTES), \
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__section__(".data_l1.cacheline_aligned")))
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#endif
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#endif
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/*
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* largest L1 which this arch supports
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*/
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#define L1_CACHE_SHIFT_MAX 5
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#if defined(CONFIG_SMP) && \
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!defined(CONFIG_BFIN_CACHE_COHERENT) && \
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defined(CONFIG_BFIN_DCACHE)
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#define __ARCH_SYNC_CORE_DCACHE
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#ifndef __ASSEMBLY__
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asmlinkage void __raw_smp_mark_barrier_asm(void);
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asmlinkage void __raw_smp_check_barrier_asm(void);
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static inline void smp_mark_barrier(void)
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{
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__raw_smp_mark_barrier_asm();
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}
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static inline void smp_check_barrier(void)
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{
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__raw_smp_check_barrier_asm();
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}
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void resync_core_dcache(void);
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#endif
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#endif
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#endif
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