1 files changed, 126 insertions, 0 deletions

diff --git a/include/asm-x86/pci_64.h b/include/asm-x86/pci_64.h
new file mode 100644
index 000000000000..5da8cb0c0599
--- /dev/null
+++ b/include/asm-x86/pci_64.h
@@ -0,0 +1,126 @@
+#ifndef __x8664_PCI_H
+#define __x8664_PCI_H
+
+#include <asm/io.h>
+
+#ifdef __KERNEL__
+
+struct pci_sysdata {
+        int             node;           /* NUMA node */
+        void*           iommu;          /* IOMMU private data */
+};
+
+extern struct pci_bus *pci_scan_bus_with_sysdata(int busno);
+
+#ifdef CONFIG_CALGARY_IOMMU
+static inline void* pci_iommu(struct pci_bus *bus)
+{
+        struct pci_sysdata *sd = bus->sysdata;
+        return sd->iommu;
+}
+
+static inline void set_pci_iommu(struct pci_bus *bus, void *val)
+{
+        struct pci_sysdata *sd = bus->sysdata;
+        sd->iommu = val;
+}
+#endif /* CONFIG_CALGARY_IOMMU */
+
+#include <linux/mm.h> /* for struct page */
+
+/* Can be used to override the logic in pci_scan_bus for skipping
+   already-configured bus numbers - to be used for buggy BIOSes
+   or architectures with incomplete PCI setup by the loader */
+
+#ifdef CONFIG_PCI
+extern unsigned int pcibios_assign_all_busses(void);
+#else
+#define pcibios_assign_all_busses()     0
+#endif
+#define pcibios_scan_all_fns(a, b)      0
+
+extern unsigned long pci_mem_start;
+#define PCIBIOS_MIN_IO          0x1000
+#define PCIBIOS_MIN_MEM         (pci_mem_start)
+
+#define PCIBIOS_MIN_CARDBUS_IO  0x4000
+
+void pcibios_config_init(void);
+struct pci_bus * pcibios_scan_root(int bus);
+extern int (*pci_config_read)(int seg, int bus, int dev, int fn, int reg, int len, u32 *value);
+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, 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);
+
+#include <linux/types.h>
+#include <linux/slab.h>
+#include <asm/scatterlist.h>
+#include <linux/string.h>
+#include <asm/page.h>
+
+extern void pci_iommu_alloc(void);
+extern int iommu_setup(char *opt);
+
+/* 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 if a hardware
+ * IOMMU (gart) of sotware IOMMU (swiotlb) is available.
+ */
+#define PCI_DMA_BUS_IS_PHYS (dma_ops->is_phys)
+
+#if defined(CONFIG_IOMMU) || defined(CONFIG_CALGARY_IOMMU)
+
+#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))
+
+#else
+/* No IOMMU */
+
+#define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME)
+#define DECLARE_PCI_UNMAP_LEN(LEN_NAME)
+#define pci_unmap_addr(PTR, ADDR_NAME)          (0)
+#define pci_unmap_addr_set(PTR, ADDR_NAME, VAL) do { } while (0)
+#define pci_unmap_len(PTR, LEN_NAME)            (0)
+#define pci_unmap_len_set(PTR, LEN_NAME, VAL)   do { } while (0)
+
+#endif
+
+#include <asm-generic/pci-dma-compat.h>
+
+#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);
+
+#endif /* __KERNEL__ */
+
+/* generic pci stuff */
+#ifdef CONFIG_PCI
+#include <asm-generic/pci.h>
+#endif
+
+#endif /* __x8664_PCI_H */