Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6

[mirror_ubuntu-bionic-kernel.git] / arch / x86 / kernel / pci-dma.c

diff --git a/arch/x86/kernel/pci-dma.c b/arch/x86/kernel/pci-dma.c
index 19a1044a0cd94fbdc64b6ffd1e3df8ecde4530c9..90f5b9ef5defbd44c6bb2d0ad0489bdafb1cca08 100644 (file)
--- a/arch/x86/kernel/pci-dma.c
+++ b/arch/x86/kernel/pci-dma.c
@@ -1,4 +1,5 @@
 #include <linux/dma-mapping.h>
+#include <linux/dma-debug.h>
 #include <linux/dmar.h>
 #include <linux/bootmem.h>
 #include <linux/pci.h>
@@ -12,7 +13,7 @@
 
 static int forbid_dac __read_mostly;
 
-struct dma_mapping_ops *dma_ops;
+struct dma_map_ops *dma_ops;
 EXPORT_SYMBOL(dma_ops);
 
 static int iommu_sac_force __read_mostly;
@@ -38,12 +39,15 @@ EXPORT_SYMBOL(bad_dma_address);
    be probably a smaller DMA mask, but this is bug-to-bug compatible
    to older i386. */
 struct device x86_dma_fallback_dev = {
-       .bus_id = "fallback device",
+       .init_name = "fallback device",
        .coherent_dma_mask = DMA_32BIT_MASK,
        .dma_mask = &x86_dma_fallback_dev.coherent_dma_mask,
 };
 EXPORT_SYMBOL(x86_dma_fallback_dev);
 
+/* Number of entries preallocated for DMA-API debugging */
+#define PREALLOC_DMA_DEBUG_ENTRIES       32768
+
 int dma_set_mask(struct device *dev, u64 mask)
 {
        if (!dev->dma_mask || !dma_supported(dev, mask))
@@ -224,7 +228,7 @@ early_param("iommu", iommu_setup);
 
 int dma_supported(struct device *dev, u64 mask)
 {
-       struct dma_mapping_ops *ops = get_dma_ops(dev);
+       struct dma_map_ops *ops = get_dma_ops(dev);
 
 #ifdef CONFIG_PCI
        if (mask > 0xffffffff && forbid_dac > 0) {
@@ -265,6 +269,12 @@ EXPORT_SYMBOL(dma_supported);
 
 static int __init pci_iommu_init(void)
 {
+       dma_debug_init(PREALLOC_DMA_DEBUG_ENTRIES);
+
+#ifdef CONFIG_PCI
+       dma_debug_add_bus(&pci_bus_type);
+#endif
+
        calgary_iommu_init();
 
        intel_iommu_init();
@@ -290,8 +300,7 @@ fs_initcall(pci_iommu_init);
 static __devinit void via_no_dac(struct pci_dev *dev)
 {
        if ((dev->class >> 8) == PCI_CLASS_BRIDGE_PCI && forbid_dac == 0) {
-               printk(KERN_INFO
-                       "PCI: VIA PCI bridge detected. Disabling DAC.\n");
+               dev_info(&dev->dev, "disabling DAC on VIA PCI bridge\n");
                forbid_dac = 1;
        }
 }