mirror of
https://github.com/FEX-Emu/linux.git
synced 2024-12-21 00:42:16 +00:00
2ba84684e8
This reverts commits71db63acff[PATCH] increase PCIBIOS_MIN_IO on x86 and0b2bfb4e7fACPI: increase PCIBIOS_MIN_IO on x86 since Lukas Sandströ<lukass@etek.chalmers.se> reports that this breaks his on-board nvidia audio. We should re-visit this later. For now we revert the change Signed-off-by: Linus Torvalds <torvalds@osdl.org>
121 lines
3.2 KiB
C
121 lines
3.2 KiB
C
#ifndef __i386_PCI_H
|
|
#define __i386_PCI_H
|
|
|
|
#include <linux/config.h>
|
|
|
|
#ifdef __KERNEL__
|
|
#include <linux/mm.h> /* for struct page */
|
|
|
|
/* 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 */
|
|
|
|
#ifdef CONFIG_PCI
|
|
extern unsigned int pcibios_assign_all_busses(void);
|
|
#else
|
|
#define pcibios_assign_all_busses() 0
|
|
#endif
|
|
#define pcibios_scan_all_fns(a, b) 0
|
|
|
|
extern unsigned long pci_mem_start;
|
|
#define PCIBIOS_MIN_IO 0x1000
|
|
#define PCIBIOS_MIN_MEM (pci_mem_start)
|
|
|
|
#define PCIBIOS_MIN_CARDBUS_IO 0x4000
|
|
|
|
void pcibios_config_init(void);
|
|
struct pci_bus * pcibios_scan_root(int bus);
|
|
|
|
void pcibios_set_master(struct pci_dev *dev);
|
|
void pcibios_penalize_isa_irq(int irq, int active);
|
|
struct irq_routing_table *pcibios_get_irq_routing_table(void);
|
|
int pcibios_set_irq_routing(struct pci_dev *dev, int pin, int irq);
|
|
|
|
/* Dynamic DMA mapping stuff.
|
|
* i386 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.
|
|
*/
|
|
#define PCI_DMA_BUS_IS_PHYS (1)
|
|
|
|
/* 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)
|
|
|
|
/* This is always fine. */
|
|
#define pci_dac_dma_supported(pci_dev, mask) (1)
|
|
|
|
static inline dma64_addr_t
|
|
pci_dac_page_to_dma(struct pci_dev *pdev, struct page *page, unsigned long offset, int direction)
|
|
{
|
|
return ((dma64_addr_t) page_to_phys(page) +
|
|
(dma64_addr_t) offset);
|
|
}
|
|
|
|
static inline struct page *
|
|
pci_dac_dma_to_page(struct pci_dev *pdev, dma64_addr_t dma_addr)
|
|
{
|
|
return pfn_to_page(dma_addr >> PAGE_SHIFT);
|
|
}
|
|
|
|
static inline unsigned long
|
|
pci_dac_dma_to_offset(struct pci_dev *pdev, dma64_addr_t dma_addr)
|
|
{
|
|
return (dma_addr & ~PAGE_MASK);
|
|
}
|
|
|
|
static inline void
|
|
pci_dac_dma_sync_single_for_cpu(struct pci_dev *pdev, dma64_addr_t dma_addr, size_t len, int direction)
|
|
{
|
|
}
|
|
|
|
static inline void
|
|
pci_dac_dma_sync_single_for_device(struct pci_dev *pdev, dma64_addr_t dma_addr, size_t len, int direction)
|
|
{
|
|
flush_write_buffers();
|
|
}
|
|
|
|
#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);
|
|
|
|
|
|
static inline void pcibios_add_platform_entries(struct pci_dev *dev)
|
|
{
|
|
}
|
|
|
|
#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
|
|
|
|
#endif /* __KERNEL__ */
|
|
|
|
/* implement the pci_ DMA API in terms of the generic device dma_ one */
|
|
#include <asm-generic/pci-dma-compat.h>
|
|
|
|
/* generic pci stuff */
|
|
#include <asm-generic/pci.h>
|
|
|
|
#endif /* __i386_PCI_H */
|