x86: use numa allocation function in i386

We can do it here to, in the same way x86_64 does.

Signed-off-by: Glauber Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

diff --git a/arch/x86/kernel/pci-dma_32.c b/arch/x86/kernel/pci-dma_32.c
index 5ae3470..0d630ae 100644 (file)
--- a/arch/x86/kernel/pci-dma_32.c
+++ b/arch/x86/kernel/pci-dma_32.c
@@ -48,10 +48,23 @@ static int dma_release_coherent(struct device *dev, int order, void *vaddr)
        return 0;
 }
 
+/* Allocate DMA memory on node near device */
+noinline struct page *
+dma_alloc_pages(struct device *dev, gfp_t gfp, unsigned order)
+{
+       int node;
+
+       node = dev_to_node(dev);
+
+       return alloc_pages_node(node, gfp, order);
+}
+
 void *dma_alloc_coherent(struct device *dev, size_t size,
                           dma_addr_t *dma_handle, gfp_t gfp)
 {
        void *ret = NULL;
+       struct page *page;
+       dma_addr_t bus;
        int order = get_order(size);
        /* ignore region specifiers */
        gfp &= ~(__GFP_DMA | __GFP_HIGHMEM);
@@ -62,12 +75,16 @@ void *dma_alloc_coherent(struct device *dev, size_t size,
        if (dev == NULL || (dev->coherent_dma_mask < 0xffffffff))
                gfp |= GFP_DMA;
 
-       ret = (void *)__get_free_pages(gfp, order);
+       page = dma_alloc_pages(dev, gfp, order);
+       if (page == NULL)
+               return NULL;
+
+       ret = page_address(page);
+       bus = page_to_phys(page);
+
+       memset(ret, 0, size);
+       *dma_handle = bus;
 
-       if (ret != NULL) {
-               memset(ret, 0, size);
-               *dma_handle = virt_to_phys(ret);
-       }
        return ret;
 }
 EXPORT_SYMBOL(dma_alloc_coherent);