/*
* Invalidate L2 Cache using co-proc instruction
*/
+#if CONFIG_IS_ENABLED(SYS_THUMB_BUILD)
+void invalidate_l2_cache(void);
+#else
static inline void invalidate_l2_cache(void)
{
unsigned int val=0;
: : "r" (val) : "cc");
isb();
}
+#endif
+
+int check_cache_range(unsigned long start, unsigned long stop);
void l2_cache_enable(void);
void l2_cache_disable(void);
#endif
/*
- * The current upper bound for ARM L1 data cache line sizes is 64 bytes. We
- * use that value for aligning DMA buffers unless the board config has specified
- * an alternate cache line size.
+ * The value of the largest data cache relevant to DMA operations shall be set
+ * for us in CONFIG_SYS_CACHELINE_SIZE. In some cases this may be a larger
+ * value than found in the L1 cache but this is OK to use in terms of
+ * alignment.
*/
-#ifdef CONFIG_SYS_CACHELINE_SIZE
#define ARCH_DMA_MINALIGN CONFIG_SYS_CACHELINE_SIZE
-#else
-#define ARCH_DMA_MINALIGN 64
-#endif
#endif /* _ASM_CACHE_H */