1 files changed, 141 insertions, 0 deletions

diff --git a/include/asm-ia64/pci.h b/include/asm-ia64/pci.h
new file mode 100644
index 000000000000..a8314ee4e7d2
--- /dev/null
+++ b/include/asm-ia64/pci.h
@@ -0,0 +1,141 @@
+#ifndef _ASM_IA64_PCI_H
+#define _ASM_IA64_PCI_H
+
+#include <linux/mm.h>
+#include <linux/slab.h>
+#include <linux/spinlock.h>
+#include <linux/string.h>
+#include <linux/types.h>
+
+#include <asm/io.h>
+#include <asm/scatterlist.h>
+
+/*
+ * 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.
+ */
+#define pcibios_assign_all_busses()     0
+#define pcibios_scan_all_fns(a, b)      0
+
+#define PCIBIOS_MIN_IO          0x1000
+#define PCIBIOS_MIN_MEM         0x10000000
+
+void pcibios_config_init(void);
+
+struct pci_dev;
+
+/*
+ * PCI_DMA_BUS_IS_PHYS should be set to 1 if there is _necessarily_ a direct correspondence
+ * between device bus addresses and CPU physical addresses.  Platforms with a hardware I/O
+ * MMU _must_ turn this off to suppress the bounce buffer handling code in the block and
+ * network device layers.  Platforms with separate bus address spaces _must_ turn this off
+ * and provide a device DMA mapping implementation that takes care of the necessary
+ * address translation.
+ *
+ * For now, the ia64 platforms which may have separate/multiple bus address spaces all
+ * have I/O MMUs which support the merging of physically discontiguous buffers, so we can
+ * use that as the sole factor to determine the setting of PCI_DMA_BUS_IS_PHYS.
+ */
+extern unsigned long ia64_max_iommu_merge_mask;
+#define PCI_DMA_BUS_IS_PHYS     (ia64_max_iommu_merge_mask == ~0UL)
+
+static inline void
+pcibios_set_master (struct pci_dev *dev)
+{
+        /* No special bus mastering setup handling */
+}
+
+static inline void
+pcibios_penalize_isa_irq (int irq)
+{
+        /* We don't do dynamic PCI IRQ allocation */
+}
+
+#define HAVE_ARCH_PCI_MWI 1
+extern int pcibios_prep_mwi (struct pci_dev *);
+
+#include <asm-generic/pci-dma-compat.h>
+
+/* pci_unmap_{single,page} is not a nop, thus... */
+#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))
+
+/* The ia64 platform always supports 64-bit addressing. */
+#define pci_dac_dma_supported(pci_dev, mask)            (1)
+#define pci_dac_page_to_dma(dev,pg,off,dir)             ((dma_addr_t) page_to_bus(pg) + (off))
+#define pci_dac_dma_to_page(dev,dma_addr)               (virt_to_page(bus_to_virt(dma_addr)))
+#define pci_dac_dma_to_offset(dev,dma_addr)             offset_in_page(dma_addr)
+#define pci_dac_dma_sync_single_for_cpu(dev,dma_addr,len,dir)   do { } while (0)
+#define pci_dac_dma_sync_single_for_device(dev,dma_addr,len,dir)        do { mb(); } while (0)
+
+#define sg_dma_len(sg)          ((sg)->dma_length)
+#define sg_dma_address(sg)      ((sg)->dma_address)
+
+#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);
+#define HAVE_PCI_LEGACY
+extern int pci_mmap_legacy_page_range(struct pci_bus *bus,
+                                      struct vm_area_struct *vma);
+extern ssize_t pci_read_legacy_io(struct kobject *kobj, char *buf, loff_t off,
+                                  size_t count);
+extern ssize_t pci_write_legacy_io(struct kobject *kobj, char *buf, loff_t off,
+                                   size_t count);
+extern int pci_mmap_legacy_mem(struct kobject *kobj,
+                               struct bin_attribute *attr,
+                               struct vm_area_struct *vma);
+
+#define pci_get_legacy_mem platform_pci_get_legacy_mem
+#define pci_legacy_read platform_pci_legacy_read
+#define pci_legacy_write platform_pci_legacy_write
+
+struct pci_window {
+        struct resource resource;
+        u64 offset;
+};
+
+struct pci_controller {
+        void *acpi_handle;
+        void *iommu;
+        int segment;
+
+        unsigned int windows;
+        struct pci_window *window;
+
+        void *platform_data;
+};
+
+#define PCI_CONTROLLER(busdev) ((struct pci_controller *) busdev->sysdata)
+#define pci_domain_nr(busdev)    (PCI_CONTROLLER(busdev)->segment)
+
+extern struct pci_ops pci_root_ops;
+
+static inline int pci_proc_domain(struct pci_bus *bus)
+{
+        return (pci_domain_nr(bus) != 0);
+}
+
+static inline void pcibios_add_platform_entries(struct pci_dev *dev)
+{
+}
+
+extern void pcibios_resource_to_bus(struct pci_dev *dev,
+                struct pci_bus_region *region, struct resource *res);
+
+extern void pcibios_bus_to_resource(struct pci_dev *dev,
+                struct resource *res, struct pci_bus_region *region);
+
+#define pcibios_scan_all_fns(a, b)      0
+
+#endif /* _ASM_IA64_PCI_H */