#ifndef _ASM_PCI_H
#define _ASM_PCI_H
-#include <linux/config.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 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(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 void pcibios_set_master(struct pci_dev *dev);
-static inline void pcibios_penalize_isa_irq(int irq)
+static inline void pcibios_penalize_isa_irq(int irq, int active)
{
/* We don't do dynamic PCI IRQ allocation */
}
*/
extern unsigned int PCI_DMA_BUS_IS_PHYS;
-#ifdef CONFIG_MAPPED_DMA_IO
+#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 pci_unmap_len(PTR, LEN_NAME) ((PTR)->LEN_NAME)
#define pci_unmap_len_set(PTR, LEN_NAME, VAL) (((PTR)->LEN_NAME) = (VAL))
-#else /* CONFIG_MAPPED_DMA_IO */
+#else /* CONFIG_DMA_NEED_PCI_MAP_STATE */
/* pci_unmap_{page,single} is a nop so... */
#define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME)
#define pci_unmap_len(PTR, LEN_NAME) (0)
#define pci_unmap_len_set(PTR, LEN_NAME, VAL) do { } while (0)
-#endif /* CONFIG_MAPPED_DMA_IO */
+#endif /* CONFIG_DMA_NEED_PCI_MAP_STATE */
/* This is always fine. */
#define pci_dac_dma_supported(pci_dev, mask) (1)
extern void pci_dac_dma_sync_single_for_device(struct pci_dev *pdev,
dma64_addr_t dma_addr, size_t len, int direction);
+#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;
+}
+
+#ifdef CONFIG_PCI_DOMAINS
+
+#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 /* CONFIG_PCI_DOMAINS */
+
#endif /* __KERNEL__ */
/* implement the pci_ DMA API in terms of the generic device dma_ one */
{
}
+/* 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;
+}
+
#endif /* _ASM_PCI_H */