fedora core 6 1.2949 + vserver 2.2.0

[linux-2.6.git] / include / asm-x86_64 / pci.h

diff --git a/include/asm-x86_64/pci.h b/include/asm-x86_64/pci.h
index 1b2423f..e0d2983 100644 (file)
--- a/include/asm-x86_64/pci.h
+++ b/include/asm-x86_64/pci.h
@@ -1,7 +1,6 @@
 #ifndef __x8664_PCI_H
 #define __x8664_PCI_H
 
-#include <linux/config.h>
 #include <asm/io.h>
 
 #ifdef __KERNEL__
@@ -19,8 +18,6 @@ extern unsigned int pcibios_assign_all_busses(void);
 #endif
 #define pcibios_scan_all_fns(a, b)     0
 
-extern int no_iommu, force_iommu;
-
 extern unsigned long pci_mem_start;
 #define PCIBIOS_MIN_IO         0x1000
 #define PCIBIOS_MIN_MEM                (pci_mem_start)
@@ -33,7 +30,7 @@ extern int (*pci_config_read)(int seg, int bus, int dev, int fn, int reg, int le
 extern int (*pci_config_write)(int seg, int bus, int dev, int fn, int reg, int len, u32 value);
 
 void pcibios_set_master(struct pci_dev *dev);
-void pcibios_penalize_isa_irq(int irq);
+void pcibios_penalize_isa_irq(int irq, int active);
 struct irq_routing_table *pcibios_get_irq_routing_table(void);
 int pcibios_set_irq_routing(struct pci_dev *dev, int pin, int irq);
 
@@ -41,20 +38,21 @@ int pcibios_set_irq_routing(struct pci_dev *dev, int pin, int irq);
 #include <linux/slab.h>
 #include <asm/scatterlist.h>
 #include <linux/string.h>
-#include <asm/io.h>
 #include <asm/page.h>
 
+extern void pci_iommu_alloc(void);
 extern int iommu_setup(char *opt);
 
-#ifdef CONFIG_GART_IOMMU
 /* The PCI address space does equal the physical memory
  * address space.  The networking and block device layers use
  * this boolean for bounce buffer decisions
  *
- * On AMD64 it mostly equals, but we set it to zero to tell some subsystems
- * that an IOMMU is available.
+ * On AMD64 it mostly equals, but we set it to zero if a hardware
+ * IOMMU (gart) of sotware IOMMU (swiotlb) is available.
  */
-#define PCI_DMA_BUS_IS_PHYS    (no_iommu ? 1 : 0)
+#define PCI_DMA_BUS_IS_PHYS (dma_ops->is_phys)
+
+#if defined(CONFIG_IOMMU) || defined(CONFIG_CALGARY_IOMMU)
 
 /*
  * x86-64 always supports DAC, but sometimes it is useful to force
@@ -64,6 +62,23 @@ extern int iommu_setup(char *opt);
 extern int iommu_sac_force;
 #define pci_dac_dma_supported(pci_dev, mask)   (!iommu_sac_force)
 
+#define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME)      \
+       dma_addr_t ADDR_NAME;
+#define DECLARE_PCI_UNMAP_LEN(LEN_NAME)                \
+       __u32 LEN_NAME;
+#define pci_unmap_addr(PTR, ADDR_NAME)                 \
+       ((PTR)->ADDR_NAME)
+#define pci_unmap_addr_set(PTR, ADDR_NAME, VAL)                \
+       (((PTR)->ADDR_NAME) = (VAL))
+#define pci_unmap_len(PTR, LEN_NAME)                   \
+       ((PTR)->LEN_NAME)
+#define pci_unmap_len_set(PTR, LEN_NAME, VAL)          \
+       (((PTR)->LEN_NAME) = (VAL))
+
+#elif defined(CONFIG_SWIOTLB)
+
+#define pci_dac_dma_supported(pci_dev, mask)    1
+
 #define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME)      \
        dma_addr_t ADDR_NAME;
 #define DECLARE_PCI_UNMAP_LEN(LEN_NAME)                \
@@ -80,7 +95,6 @@ extern int iommu_sac_force;
 #else
 /* No IOMMU */
 
-#define PCI_DMA_BUS_IS_PHYS    1
 #define pci_dac_dma_supported(pci_dev, mask)    1
 
 #define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME)
@@ -124,6 +138,16 @@ pci_dac_dma_sync_single_for_device(struct pci_dev *pdev, dma64_addr_t dma_addr,
        flush_write_buffers();
 }
 
+#ifdef CONFIG_PCI
+static inline void pci_dma_burst_advice(struct pci_dev *pdev,
+                                       enum pci_dma_burst_strategy *strat,
+                                       unsigned long *strategy_parameter)
+{
+       *strat = PCI_DMA_BURST_INFINITY;
+       *strategy_parameter = ~0UL;
+}
+#endif
+
 #define HAVE_PCI_MMAP
 extern int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
                               enum pci_mmap_state mmap_state, int write_combine);
@@ -139,4 +163,13 @@ static inline void pcibios_add_platform_entries(struct pci_dev *dev)
 #include <asm-generic/pci.h>
 #endif
 
+#ifdef CONFIG_XEN
+/* On Xen we have to scan all functions since Xen hides bridges from
+ * us.  If a bridge is at fn=0 and that slot has a multifunction
+ * device, we won't find the additional devices without scanning all
+ * functions. */
+#undef pcibios_scan_all_fns
+#define pcibios_scan_all_fns(a, b)     1
+#endif
+
 #endif /* __x8664_PCI_H */