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authorGraf Yang <graf.yang@analog.com>2009-01-07 18:14:39 +0300
committerBryan Wu <cooloney@kernel.org>2009-01-07 18:14:39 +0300
commit6b3087c64a92a36ae20d33479b4df6d7afc910d4 (patch)
tree95984fc623658ebf150d0d912a7f6c5a0301a5a9 /arch/blackfin/include/asm/cache.h
parentc51b4488cd5bff08ed5690a8f303ff7f0894da2a (diff)
downloadlinux-6b3087c64a92a36ae20d33479b4df6d7afc910d4.tar.xz
Blackfin arch: SMP supporting patchset: Blackfin header files and machine common code
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>
Diffstat (limited to 'arch/blackfin/include/asm/cache.h')
-rw-r--r--arch/blackfin/include/asm/cache.h29
1 files changed, 29 insertions, 0 deletions
diff --git a/arch/blackfin/include/asm/cache.h b/arch/blackfin/include/asm/cache.h
index 023d72133b5a..86637814cf25 100644
--- a/arch/blackfin/include/asm/cache.h
+++ b/arch/blackfin/include/asm/cache.h
@@ -12,6 +12,11 @@
#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
#define SMP_CACHE_BYTES L1_CACHE_BYTES
+#ifdef CONFIG_SMP
+#define __cacheline_aligned
+#else
+#define ____cacheline_aligned
+
/*
* Put cacheline_aliged data to L1 data memory
*/
@@ -21,9 +26,33 @@
__section__(".data_l1.cacheline_aligned")))
#endif
+#endif
+
/*
* largest L1 which this arch supports
*/
#define L1_CACHE_SHIFT_MAX 5
+#if defined(CONFIG_SMP) && \
+ !defined(CONFIG_BFIN_CACHE_COHERENT) && \
+ defined(CONFIG_BFIN_DCACHE)
+#define __ARCH_SYNC_CORE_DCACHE
+#ifndef __ASSEMBLY__
+asmlinkage void __raw_smp_mark_barrier_asm(void);
+asmlinkage void __raw_smp_check_barrier_asm(void);
+
+static inline void smp_mark_barrier(void)
+{
+ __raw_smp_mark_barrier_asm();
+}
+static inline void smp_check_barrier(void)
+{
+ __raw_smp_check_barrier_asm();
+}
+
+void resync_core_dcache(void);
+#endif
+#endif
+
+
#endif