forked from Minki/linux
a43ae58c84
pcibios_penalize_isa_irq() is only implemented by x86 now, and legacy ISA is not used by some architectures. Make pcibios_penalize_isa_irq() a __weak function to simplify the code. This removes the need for new platforms to add stub implementations of pcibios_penalize_isa_irq(). [bhelgaas: changelog, comments] Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Arnd Bergmann <arnd@arndb.de>
57 lines
1.3 KiB
C
57 lines
1.3 KiB
C
#ifndef __SPARC_PCI_H
|
|
#define __SPARC_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() 0
|
|
|
|
#define PCIBIOS_MIN_IO 0UL
|
|
#define PCIBIOS_MIN_MEM 0UL
|
|
|
|
#define PCI_IRQ_NONE 0xffffffff
|
|
|
|
/* Dynamic DMA mapping stuff.
|
|
*/
|
|
#define PCI_DMA_BUS_IS_PHYS (0)
|
|
|
|
struct pci_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__ */
|
|
|
|
#ifndef CONFIG_LEON_PCI
|
|
/* generic pci stuff */
|
|
#include <asm-generic/pci.h>
|
|
#else
|
|
/*
|
|
* On LEON PCI Memory space is mapped 1:1 with physical address space.
|
|
*
|
|
* I/O space is located at low 64Kbytes in PCI I/O space. The I/O addresses
|
|
* are converted into CPU addresses to virtual addresses that are mapped with
|
|
* MMU to the PCI Host PCI I/O space window which are translated to the low
|
|
* 64Kbytes by the Host controller.
|
|
*/
|
|
|
|
static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
|
|
{
|
|
return PCI_IRQ_NONE;
|
|
}
|
|
#endif
|
|
|
|
#endif /* __SPARC_PCI_H */
|