130 lines
3.5 KiB
C
130 lines
3.5 KiB
C
#ifndef __ASM_SH_PCI_H
|
|
#define __ASM_SH_PCI_H
|
|
|
|
#ifdef __KERNEL__
|
|
|
|
#include <linux/dma-mapping.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() 1
|
|
#define pcibios_scan_all_fns(a, b) 0
|
|
|
|
/*
|
|
* A board can define one or more PCI channels that represent built-in (or
|
|
* 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;
|
|
};
|
|
|
|
/*
|
|
* Each board initializes this array and terminates it with a NULL entry.
|
|
*/
|
|
extern struct pci_channel board_pci_channels[];
|
|
|
|
#define PCIBIOS_MIN_IO board_pci_channels->io_resource->start
|
|
#define PCIBIOS_MIN_MEM board_pci_channels->mem_resource->start
|
|
|
|
struct pci_dev;
|
|
|
|
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.
|
|
* SuperH has everything mapped statically like x86.
|
|
*/
|
|
|
|
/* The PCI address space does equal the physical memory
|
|
* address space. The networking and block device layers use
|
|
* this boolean for bounce buffer decisions.
|
|
*/
|
|
#define PCI_DMA_BUS_IS_PHYS (1)
|
|
|
|
#include <linux/types.h>
|
|
#include <linux/slab.h>
|
|
#include <asm/scatterlist.h>
|
|
#include <linux/string.h>
|
|
#include <asm/io.h>
|
|
|
|
/* pci_unmap_{single,page} being a nop depends upon the
|
|
* configuration.
|
|
*/
|
|
#ifdef CONFIG_SH_PCIDMA_NONCOHERENT
|
|
#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
|
|
#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
|
|
|
|
/* Not supporting more than 32-bit PCI bus addresses now, but
|
|
* must satisfy references to this function. Change if needed.
|
|
*/
|
|
#define pci_dac_dma_supported(pci_dev, mask) (0)
|
|
|
|
/* These macros should be used after a pci_map_sg call has been done
|
|
* to get bus addresses of each of the SG entries and their lengths.
|
|
* You should only work with the number of sg entries pci_map_sg
|
|
* returns, or alternatively stop on the first sg_dma_len(sg) which
|
|
* is 0.
|
|
*/
|
|
#define sg_dma_address(sg) (virt_to_bus((sg)->dma_address))
|
|
#define sg_dma_len(sg) ((sg)->length)
|
|
|
|
#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
|
|
|
|
/* Board-specific fixup routines. */
|
|
extern void pcibios_fixup(void);
|
|
extern void pcibios_fixup_irqs(void);
|
|
|
|
#ifdef CONFIG_PCI_AUTO
|
|
extern int pciauto_assign_resources(int busno, struct pci_channel *hose);
|
|
#endif
|
|
|
|
static inline void pcibios_add_platform_entries(struct pci_dev *dev)
|
|
{
|
|
}
|
|
|
|
#endif /* __KERNEL__ */
|
|
|
|
/* generic pci stuff */
|
|
#include <asm-generic/pci.h>
|
|
|
|
/* generic DMA-mapping stuff */
|
|
#include <asm-generic/pci-dma-compat.h>
|
|
|
|
#endif /* __ASM_SH_PCI_H */
|
|
|