resource/PCI: align functions now return start of resource
[linux-2.6.git] / arch / cris / arch-v32 / kernel / cache.c
1 #include <linux/module.h>
2 #include <asm/io.h>
3 #include <arch/cache.h>
4 #include <arch/hwregs/dma.h>
5
6 /* This file is used to workaround a cache bug, Guinness TR 106. */
7
8 inline void flush_dma_descr(struct dma_descr_data *descr, int flush_buf)
9 {
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. */
13         if (flush_buf)
14                 cris_flush_cache_range(phys_to_virt((unsigned)descr->buf),
15                                 (unsigned)(descr->after - descr->buf));
16 }
17 EXPORT_SYMBOL(flush_dma_descr);
18
19 void flush_dma_list(struct dma_descr_data *descr)
20 {
21         while (1) {
22                 flush_dma_descr(descr, 1);
23                 if (descr->eol)
24                         break;
25                 descr = phys_to_virt((unsigned)descr->next);
26         }
27 }
28 EXPORT_SYMBOL(flush_dma_list);
29
30 /* From cacheflush.S */
31 EXPORT_SYMBOL(cris_flush_cache);
32 /* From cacheflush.S */
33 EXPORT_SYMBOL(cris_flush_cache_range);