diff options
author | Ingo Molnar <mingo@elte.hu> | 2009-06-11 23:31:52 +0200 |
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committer | Ingo Molnar <mingo@elte.hu> | 2009-06-11 23:31:52 +0200 |
commit | 0d5959723e1db3fd7323c198a50c16cecf96c7a9 (patch) | |
tree | 802b623fff261ebcbbddadf84af5524398364a18 /arch/sh/include/asm/pci.h | |
parent | 62fdac5913f71f8f200bd2c9bd59a02e9a1498e9 (diff) | |
parent | 512626a04e72aca60effe111fa0333ed0b195d21 (diff) |
Merge branch 'linus' into x86/mce3
Conflicts:
arch/x86/kernel/cpu/mcheck/mce_64.c
arch/x86/kernel/irq.c
Merge reason: Resolve the conflicts above.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/sh/include/asm/pci.h')
-rw-r--r-- | arch/sh/include/asm/pci.h | 118 |
1 files changed, 69 insertions, 49 deletions
diff --git a/arch/sh/include/asm/pci.h b/arch/sh/include/asm/pci.h index df1d383e18a..ae0da6f48b6 100644 --- a/arch/sh/include/asm/pci.h +++ b/arch/sh/include/asm/pci.h @@ -17,54 +17,29 @@ * external) PCI controllers. */ struct pci_channel { - struct pci_ops *pci_ops; - struct resource *io_resource; - struct resource *mem_resource; - int first_devfn; - int last_devfn; -}; + struct pci_channel *next; -/* - * Each board initializes this array and terminates it with a NULL entry. - */ -extern struct pci_channel board_pci_channels[]; + struct pci_ops *pci_ops; + struct resource *io_resource; + struct resource *mem_resource; -#define PCIBIOS_MIN_IO board_pci_channels->io_resource->start -#define PCIBIOS_MIN_MEM board_pci_channels->mem_resource->start + unsigned long io_offset; + unsigned long mem_offset; -/* - * I/O routine helpers - */ -#if defined(CONFIG_CPU_SUBTYPE_SH7780) || defined(CONFIG_CPU_SUBTYPE_SH7785) -#define PCI_IO_AREA 0xFE400000 -#define PCI_IO_SIZE 0x00400000 -#elif defined(CONFIG_CPU_SH5) -extern unsigned long PCI_IO_AREA; -#define PCI_IO_SIZE 0x00010000 -#else -#define PCI_IO_AREA 0xFE240000 -#define PCI_IO_SIZE 0x00040000 -#endif + unsigned long reg_base; -#define PCI_MEM_SIZE 0x01000000 + unsigned long io_map_base; +}; -#define SH4_PCIIOBR_MASK 0xFFFC0000 -#define pci_ioaddr(addr) (PCI_IO_AREA + (addr & ~SH4_PCIIOBR_MASK)) +extern void register_pci_controller(struct pci_channel *hose); -#if defined(CONFIG_PCI) -#define is_pci_ioaddr(port) \ - (((port) >= PCIBIOS_MIN_IO) && \ - ((port) < (PCIBIOS_MIN_IO + PCI_IO_SIZE))) -#define is_pci_memaddr(port) \ - (((port) >= PCIBIOS_MIN_MEM) && \ - ((port) < (PCIBIOS_MIN_MEM + PCI_MEM_SIZE))) -#else -#define is_pci_ioaddr(port) (0) -#define is_pci_memaddr(port) (0) -#endif +extern unsigned long PCIBIOS_MIN_IO, PCIBIOS_MIN_MEM; struct pci_dev; +#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); extern void pcibios_set_master(struct pci_dev *dev); static inline void pcibios_penalize_isa_irq(int irq, int active) @@ -114,31 +89,76 @@ static inline void pcibios_penalize_isa_irq(int irq, int active) #endif #ifdef CONFIG_PCI +/* + * None of the SH PCI controllers support MWI, it is always treated as a + * direct memory write. + */ +#define PCI_DISABLE_MWI + 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; + unsigned long cacheline_size; + u8 byte; + + pci_read_config_byte(pdev, PCI_CACHE_LINE_SIZE, &byte); + + if (byte == 0) + cacheline_size = L1_CACHE_BYTES; + else + cacheline_size = byte << 2; + + *strat = PCI_DMA_BURST_MULTIPLE; + *strategy_parameter = cacheline_size; } #endif +#ifdef CONFIG_SUPERH32 +/* + * If we're on an SH7751 or SH7780 PCI controller, PCI memory is mapped + * at the end of the address space in a special non-translatable area. + */ +#define PCI_MEM_FIXED_START 0xfd000000 +#define PCI_MEM_FIXED_END (PCI_MEM_FIXED_START + 0x01000000) + +#define is_pci_memory_fixed_range(s, e) \ + ((s) >= PCI_MEM_FIXED_START && (e) < PCI_MEM_FIXED_END) +#else +#define is_pci_memory_fixed_range(s, e) (0) +#endif + /* Board-specific fixup routines. */ -void pcibios_fixup(void); -int pcibios_init_platform(void); int pcibios_map_platform_irq(struct pci_dev *dev, u8 slot, u8 pin); -#ifdef CONFIG_PCI_AUTO -int pciauto_assign_resources(int busno, struct pci_channel *hose); -#endif +extern void pcibios_resource_to_bus(struct pci_dev *dev, + struct pci_bus_region *region, struct resource *res); -#endif /* __KERNEL__ */ +extern void pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res, + struct pci_bus_region *region); -/* generic pci stuff */ -#include <asm-generic/pci.h> +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; +} + +/* 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; +} /* generic DMA-mapping stuff */ #include <asm-generic/pci-dma-compat.h> +#endif /* __KERNEL__ */ #endif /* __ASM_SH_PCI_H */ |