Pull acpi_bus_register_driver into release branch

[pandora-kernel.git] / arch / arm / mm / consistent.c

diff --git a/arch/arm/mm/consistent.c b/arch/arm/mm/consistent.c
index 8a1bfcd..50e6b6b 100644 (file)
--- a/arch/arm/mm/consistent.c
+++ b/arch/arm/mm/consistent.c
@@ -18,6 +18,7 @@
 #include <linux/device.h>
 #include <linux/dma-mapping.h>
 
+#include <asm/memory.h>
 #include <asm/cacheflush.h>
 #include <asm/tlbflush.h>
 #include <asm/sizes.h>
@@ -272,6 +273,17 @@ __dma_alloc(struct device *dev, size_t size, dma_addr_t *handle, gfp_t gfp,
 void *
 dma_alloc_coherent(struct device *dev, size_t size, dma_addr_t *handle, gfp_t gfp)
 {
+       if (arch_is_coherent()) {
+               void *virt;
+
+               virt = kmalloc(size, gfp);
+               if (!virt)
+                       return NULL;
+               *handle =  virt_to_dma(dev, virt);
+
+               return virt;
+       }
+
        return __dma_alloc(dev, size, handle, gfp,
                           pgprot_noncached(pgprot_kernel));
 }
@@ -350,6 +362,11 @@ void dma_free_coherent(struct device *dev, size_t size, void *cpu_addr, dma_addr
 
        WARN_ON(irqs_disabled());
 
+       if (arch_is_coherent()) {
+               kfree(cpu_addr);
+               return;
+       }
+
        size = PAGE_ALIGN(size);
 
        spin_lock_irqsave(&consistent_lock, flags);