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-rw-r--r--arch/mips/include/asm/pci.h179
1 files changed, 179 insertions, 0 deletions
diff --git a/arch/mips/include/asm/pci.h b/arch/mips/include/asm/pci.h
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--- /dev/null
+++ b/arch/mips/include/asm/pci.h
@@ -0,0 +1,179 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+#ifndef _ASM_PCI_H
+#define _ASM_PCI_H
+
+#include <linux/mm.h>
+
+#ifdef __KERNEL__
+
+/*
+ * This file essentially defines the interface between board
+ * specific PCI code and MIPS common PCI code. Should potentially put
+ * into include/asm/pci.h file.
+ */
+
+#include <linux/ioport.h>
+
+/*
+ * Each pci channel is a top-level PCI bus seem by CPU. A machine with
+ * multiple PCI channels may have multiple PCI host controllers or a
+ * single controller supporting multiple channels.
+ */
+struct pci_controller {
+ struct pci_controller *next;
+ struct pci_bus *bus;
+
+ struct pci_ops *pci_ops;
+ struct resource *mem_resource;
+ unsigned long mem_offset;
+ struct resource *io_resource;
+ unsigned long io_offset;
+ unsigned long io_map_base;
+
+ unsigned int index;
+ /* For compatibility with current (as of July 2003) pciutils
+ and XFree86. Eventually will be removed. */
+ unsigned int need_domain_info;
+
+ int iommu;
+
+ /* Optional access methods for reading/writing the bus number
+ of the PCI controller */
+ int (*get_busno)(void);
+ void (*set_busno)(int busno);
+};
+
+/*
+ * Used by boards to register their PCI busses before the actual scanning.
+ */
+extern struct pci_controller * alloc_pci_controller(void);
+extern void register_pci_controller(struct pci_controller *hose);
+
+/*
+ * board supplied pci irq fixup routine
+ */
+extern int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin);
+
+
+/* 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 */
+
+extern unsigned int pcibios_assign_all_busses(void);
+
+#define pcibios_scan_all_fns(a, b) 0
+
+extern unsigned long PCIBIOS_MIN_IO;
+extern unsigned long PCIBIOS_MIN_MEM;
+
+#define PCIBIOS_MIN_CARDBUS_IO 0x4000
+
+extern void pcibios_set_master(struct pci_dev *dev);
+
+static inline void pcibios_penalize_isa_irq(int irq, int active)
+{
+ /* We don't do dynamic PCI IRQ allocation */
+}
+
+/*
+ * Dynamic DMA mapping stuff.
+ * MIPS has everything mapped statically.
+ */
+
+#include <linux/types.h>
+#include <linux/slab.h>
+#include <asm/scatterlist.h>
+#include <linux/string.h>
+#include <asm/io.h>
+
+struct pci_dev;
+
+/*
+ * The PCI address space does equal the physical memory address space. The
+ * networking and block device layers use this boolean for bounce buffer
+ * decisions. This is set if any hose does not have an IOMMU.
+ */
+extern unsigned int PCI_DMA_BUS_IS_PHYS;
+
+#ifdef CONFIG_DMA_NEED_PCI_MAP_STATE
+
+/* 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))
+
+#else /* CONFIG_DMA_NEED_PCI_MAP_STATE */
+
+/* pci_unmap_{page,single} is a nop so... */
+#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 /* CONFIG_DMA_NEED_PCI_MAP_STATE */
+
+#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
+
+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);
+
+static inline struct resource *
+pcibios_select_root(struct pci_dev *pdev, struct resource *res)
+{
+ struct resource *root = NULL;
+
+ if (res->flags & IORESOURCE_IO)
+ root = &ioport_resource;
+ if (res->flags & IORESOURCE_MEM)
+ root = &iomem_resource;
+
+ return root;
+}
+
+#define pci_domain_nr(bus) ((struct pci_controller *)(bus)->sysdata)->index
+
+static inline int pci_proc_domain(struct pci_bus *bus)
+{
+ struct pci_controller *hose = bus->sysdata;
+ return hose->need_domain_info;
+}
+
+#endif /* __KERNEL__ */
+
+/* implement the pci_ DMA API in terms of the generic device dma_ one */
+#include <asm-generic/pci-dma-compat.h>
+
+/* Do platform specific device initialization at pci_enable_device() time */
+extern int pcibios_plat_dev_init(struct pci_dev *dev);
+
+/* Chances are this interrupt is wired PC-style ... */
+static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
+{
+ return channel ? 15 : 14;
+}
+
+extern int pci_probe_only;
+
+extern char * (*pcibios_plat_setup)(char *str);
+
+#endif /* _ASM_PCI_H */
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