int memory_add_physaddr_to_nid(u64 addr)
{
int nid = paddr_to_nid(addr);
if (nid < 0)
return 0;
return nid;
}
/*
* uncached_free_page
*
* @uc_addr: uncached address of first page to free
* @n_pages: number of contiguous pages to free
*
* Free the specified number of uncached pages.
*/
void uncached_free_page(unsigned long uc_addr, int n_pages)
{
int nid = paddr_to_nid(uc_addr - __IA64_UNCACHED_OFFSET);
struct gen_pool *pool = uncached_pools[nid].pool;
if (unlikely(pool == NULL))
return;
if ((uc_addr & (0XFUL << 60)) != __IA64_UNCACHED_OFFSET)
panic("uncached_free_page invalid address %lx\n", uc_addr);
gen_pool_free(pool, uc_addr, n_pages * PAGE_SIZE);
}
/*
* uncached_build_memmap,
*
* @uc_start: uncached starting address of a chunk of uncached memory
* @uc_end: uncached ending address of a chunk of uncached memory
* @arg: ignored, (NULL argument passed in on call to efi_memmap_walk_uc())
*
* Called at boot time to build a map of pages that can be used for
* memory special operations.
*/
static int __init uncached_build_memmap(u64 uc_start, u64 uc_end, void *arg)
{
int nid = paddr_to_nid(uc_start - __IA64_UNCACHED_OFFSET);
struct gen_pool *pool = uncached_pools[nid].pool;
size_t size = uc_end - uc_start;
touch_softlockup_watchdog();
if (pool != NULL) {
memset((char *)uc_start, 0, size);
(void) gen_pool_add(pool, uc_start, size, nid);
}
return 0;
}
