dma_cache_inv
void dma_cache_inv(phys_addr_t start, unsigned long sz);
EXPORT_SYMBOL(dma_cache_inv);
dma_cache_inv(paddr, size);
dma_cache_inv(paddr, size);
dma_cache_inv(KSEG0ADDR(buf), nbytes);
dma_cache_inv((unsigned long)addr, size);
dma_cache_inv((unsigned long)addr, size);
dma_cache_inv((unsigned long) priv->si_buf, 8 * 8);