x86, vmlinux.lds: add copyright

[safe/jmp/linux-2.6] / arch / x86 / kernel / pci-gart_64.c

diff --git a/arch/x86/kernel/pci-gart_64.c b/arch/x86/kernel/pci-gart_64.c
index ba7ad83..b284b58 100644 (file)
--- a/arch/x86/kernel/pci-gart_64.c
+++ b/arch/x86/kernel/pci-gart_64.c
@@ -5,7 +5,7 @@
  * This allows to use PCI devices that only support 32bit addresses on systems
  * with more than 4GB.
  *
- * See Documentation/DMA-mapping.txt for the interface specification.
+ * See Documentation/PCI/PCI-DMA-mapping.txt for the interface specification.
  *
  * Copyright 2002 Andi Kleen, SuSE Labs.
  * Subject to the GNU General Public License v2 only.
@@ -52,7 +52,7 @@ static u32 *iommu_gatt_base;          /* Remapping table */
  * to trigger bugs with some popular PCI cards, in particular 3ware (but
  * has been also also seen with Qlogic at least).
  */
-int iommu_fullflush = 1;
+static int iommu_fullflush = 1;
 
 /* Allocation bitmap for the remapping area: */
 static DEFINE_SPINLOCK(iommu_bitmap_lock);
@@ -255,10 +255,13 @@ static dma_addr_t dma_map_area(struct device *dev, dma_addr_t phys_mem,
 }
 
 /* Map a single area into the IOMMU */
-static dma_addr_t
-gart_map_single(struct device *dev, phys_addr_t paddr, size_t size, int dir)
+static dma_addr_t gart_map_page(struct device *dev, struct page *page,
+                               unsigned long offset, size_t size,
+                               enum dma_data_direction dir,
+                               struct dma_attrs *attrs)
 {
        unsigned long bus;
+       phys_addr_t paddr = page_to_phys(page) + offset;
 
        if (!dev)
                dev = &x86_dma_fallback_dev;
@@ -275,8 +278,9 @@ gart_map_single(struct device *dev, phys_addr_t paddr, size_t size, int dir)
 /*
  * Free a DMA mapping.
  */
-static void gart_unmap_single(struct device *dev, dma_addr_t dma_addr,
-                             size_t size, int direction)
+static void gart_unmap_page(struct device *dev, dma_addr_t dma_addr,
+                           size_t size, enum dma_data_direction dir,
+                           struct dma_attrs *attrs)
 {
        unsigned long iommu_page;
        int npages;
@@ -298,8 +302,8 @@ static void gart_unmap_single(struct device *dev, dma_addr_t dma_addr,
 /*
  * Wrapper for pci_unmap_single working with scatterlists.
  */
-static void
-gart_unmap_sg(struct device *dev, struct scatterlist *sg, int nents, int dir)
+static void gart_unmap_sg(struct device *dev, struct scatterlist *sg, int nents,
+                         enum dma_data_direction dir, struct dma_attrs *attrs)
 {
        struct scatterlist *s;
        int i;
@@ -307,7 +311,7 @@ gart_unmap_sg(struct device *dev, struct scatterlist *sg, int nents, int dir)
        for_each_sg(sg, s, nents, i) {
                if (!s->dma_length || !s->length)
                        break;
-               gart_unmap_single(dev, s->dma_address, s->dma_length, dir);
+               gart_unmap_page(dev, s->dma_address, s->dma_length, dir, NULL);
        }
 }
 
@@ -329,7 +333,7 @@ static int dma_map_sg_nonforce(struct device *dev, struct scatterlist *sg,
                        addr = dma_map_area(dev, addr, s->length, dir, 0);
                        if (addr == bad_dma_address) {
                                if (i > 0)
-                                       gart_unmap_sg(dev, sg, i, dir);
+                                       gart_unmap_sg(dev, sg, i, dir, NULL);
                                nents = 0;
                                sg[0].dma_length = 0;
                                break;
@@ -400,8 +404,8 @@ dma_map_cont(struct device *dev, struct scatterlist *start, int nelems,
  * DMA map all entries in a scatterlist.
  * Merge chunks that have page aligned sizes into a continuous mapping.
  */
-static int
-gart_map_sg(struct device *dev, struct scatterlist *sg, int nents, int dir)
+static int gart_map_sg(struct device *dev, struct scatterlist *sg, int nents,
+                      enum dma_data_direction dir, struct dma_attrs *attrs)
 {
        struct scatterlist *s, *ps, *start_sg, *sgmap;
        int need = 0, nextneed, i, out, start;
@@ -468,7 +472,7 @@ gart_map_sg(struct device *dev, struct scatterlist *sg, int nents, int dir)
 
 error:
        flush_gart();
-       gart_unmap_sg(dev, sg, out, dir);
+       gart_unmap_sg(dev, sg, out, dir, NULL);
 
        /* When it was forced or merged try again in a dumb way */
        if (force_iommu || iommu_merge) {
@@ -521,7 +525,7 @@ static void
 gart_free_coherent(struct device *dev, size_t size, void *vaddr,
                   dma_addr_t dma_addr)
 {
-       gart_unmap_single(dev, dma_addr, size, DMA_BIDIRECTIONAL);
+       gart_unmap_page(dev, dma_addr, size, DMA_BIDIRECTIONAL, NULL);
        free_pages((unsigned long)vaddr, get_order(size));
 }
 
@@ -707,11 +711,11 @@ static __init int init_k8_gatt(struct agp_kern_info *info)
        return -1;
 }
 
-static struct dma_mapping_ops gart_dma_ops = {
-       .map_single                     = gart_map_single,
-       .unmap_single                   = gart_unmap_single,
+static struct dma_map_ops gart_dma_ops = {
        .map_sg                         = gart_map_sg,
        .unmap_sg                       = gart_unmap_sg,
+       .map_page                       = gart_map_page,
+       .unmap_page                     = gart_unmap_page,
        .alloc_coherent                 = gart_alloc_coherent,
        .free_coherent                  = gart_free_coherent,
 };
@@ -745,10 +749,8 @@ void __init gart_iommu_init(void)
        unsigned long scratch;
        long i;
 
-       if (cache_k8_northbridges() < 0 || num_k8_northbridges == 0) {
-               printk(KERN_INFO "PCI-GART: No AMD GART found.\n");
+       if (cache_k8_northbridges() < 0 || num_k8_northbridges == 0)
                return;
-       }
 
 #ifndef CONFIG_AGP_AMD64
        no_agp = 1;