1 #include <linux/module.h>
3 #include <arch/cache.h>
4 #include <arch/hwregs/dma.h>
6 /* This file is used to workaround a cache bug, Guinness TR 106. */
8 inline void flush_dma_descr(struct dma_descr_data *descr, int flush_buf)
10 /* Flush descriptor to make sure we get correct in_eop and after. */
11 asm volatile ("ftagd [%0]" :: "r" (descr));
12 /* Flush buffer pointed out by descriptor. */
14 cris_flush_cache_range(phys_to_virt((unsigned)descr->buf),
15 (unsigned)(descr->after - descr->buf));
17 EXPORT_SYMBOL(flush_dma_descr);
19 void flush_dma_list(struct dma_descr_data *descr)
22 flush_dma_descr(descr, 1);
25 descr = phys_to_virt((unsigned)descr->next);
28 EXPORT_SYMBOL(flush_dma_list);
30 /* From cacheflush.S */
31 EXPORT_SYMBOL(cris_flush_cache);
32 /* From cacheflush.S */
33 EXPORT_SYMBOL(cris_flush_cache_range);