mirror of
https://github.com/FEX-Emu/linux.git
synced 2024-12-22 17:33:01 +00:00
d5341942d7
Aside of the usual motivation for constification, this function has a history of being abused a hook for interrupt and other fixups so I turned this function const ages ago in the MIPS code but it should be done treewide. Due to function pointer passing in varous places a few other functions had to be constified as well. Signed-off-by: Ralf Baechle <ralf@linux-mips.org> To: Anton Vorontsov <avorontsov@mvista.com> To: Chris Metcalf <cmetcalf@tilera.com> To: Colin Cross <ccross@android.com> Acked-by: "David S. Miller" <davem@davemloft.net> To: Eric Miao <eric.y.miao@gmail.com> To: Erik Gilling <konkers@android.com> Acked-by: Guan Xuetao <gxt@mprc.pku.edu.cn> To: "H. Peter Anvin" <hpa@zytor.com> To: Imre Kaloz <kaloz@openwrt.org> To: Ingo Molnar <mingo@redhat.com> To: Ivan Kokshaysky <ink@jurassic.park.msu.ru> To: Jesse Barnes <jbarnes@virtuousgeek.org> To: Krzysztof Halasa <khc@pm.waw.pl> To: Lennert Buytenhek <kernel@wantstofly.org> To: Matt Turner <mattst88@gmail.com> To: Nicolas Pitre <nico@fluxnic.net> To: Olof Johansson <olof@lixom.net> Acked-by: Paul Mundt <lethal@linux-sh.org> To: Richard Henderson <rth@twiddle.net> To: Russell King <linux@arm.linux.org.uk> To: Thomas Gleixner <tglx@linutronix.de> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: linux-alpha@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org Cc: linux-mips@linux-mips.org Cc: linux-pci@vger.kernel.org Cc: linux-sh@vger.kernel.org Cc: linux-tegra@vger.kernel.org Cc: sparclinux@vger.kernel.org Cc: x86@kernel.org Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
143 lines
4.1 KiB
C
143 lines
4.1 KiB
C
#ifndef __ASM_SH_PCI_H
|
|
#define __ASM_SH_PCI_H
|
|
|
|
#ifdef __KERNEL__
|
|
|
|
/* 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
|
|
|
|
/*
|
|
* A board can define one or more PCI channels that represent built-in (or
|
|
* external) PCI controllers.
|
|
*/
|
|
struct pci_channel {
|
|
struct pci_channel *next;
|
|
struct pci_bus *bus;
|
|
|
|
struct pci_ops *pci_ops;
|
|
|
|
struct resource *resources;
|
|
unsigned int nr_resources;
|
|
|
|
unsigned long io_offset;
|
|
unsigned long mem_offset;
|
|
|
|
unsigned long reg_base;
|
|
unsigned long io_map_base;
|
|
|
|
unsigned int index;
|
|
unsigned int need_domain_info;
|
|
|
|
/* Optional error handling */
|
|
struct timer_list err_timer, serr_timer;
|
|
unsigned int err_irq, serr_irq;
|
|
};
|
|
|
|
/* arch/sh/drivers/pci/pci.c */
|
|
extern raw_spinlock_t pci_config_lock;
|
|
|
|
extern int register_pci_controller(struct pci_channel *hose);
|
|
extern void pcibios_report_status(unsigned int status_mask, int warn);
|
|
|
|
/* arch/sh/drivers/pci/common.c */
|
|
extern int early_read_config_byte(struct pci_channel *hose, int top_bus,
|
|
int bus, int devfn, int offset, u8 *value);
|
|
extern int early_read_config_word(struct pci_channel *hose, int top_bus,
|
|
int bus, int devfn, int offset, u16 *value);
|
|
extern int early_read_config_dword(struct pci_channel *hose, int top_bus,
|
|
int bus, int devfn, int offset, u32 *value);
|
|
extern int early_write_config_byte(struct pci_channel *hose, int top_bus,
|
|
int bus, int devfn, int offset, u8 value);
|
|
extern int early_write_config_word(struct pci_channel *hose, int top_bus,
|
|
int bus, int devfn, int offset, u16 value);
|
|
extern int early_write_config_dword(struct pci_channel *hose, int top_bus,
|
|
int bus, int devfn, int offset, u32 value);
|
|
extern void pcibios_enable_timers(struct pci_channel *hose);
|
|
extern unsigned int pcibios_handle_status_errors(unsigned long addr,
|
|
unsigned int status, struct pci_channel *hose);
|
|
extern int pci_is_66mhz_capable(struct pci_channel *hose,
|
|
int top_bus, int current_bus);
|
|
|
|
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)
|
|
{
|
|
/* 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 (dma_ops->is_phys)
|
|
|
|
#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)
|
|
{
|
|
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
|
|
|
|
/* Board-specific fixup routines. */
|
|
int pcibios_map_platform_irq(const struct pci_dev *dev, u8 slot, u8 pin);
|
|
|
|
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);
|
|
|
|
#define pci_domain_nr(bus) ((struct pci_channel *)(bus)->sysdata)->index
|
|
|
|
static inline int pci_proc_domain(struct pci_bus *bus)
|
|
{
|
|
struct pci_channel *hose = bus->sysdata;
|
|
return hose->need_domain_info;
|
|
}
|
|
|
|
/* 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 */
|
|
|