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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __ALPHA_PCI_H
#define __ALPHA_PCI_H

#ifdef __KERNEL__

#include <linux/spinlock.h>
#include <linux/dma-mapping.h>
#include <linux/scatterlist.h>
#include <asm/machvec.h>

/*
 * The following structure is used to manage multiple PCI busses.
 */

struct pci_iommu_arena;
struct page;

/* A controller.  Used to manage multiple PCI busses.  */

struct pci_controller {
	struct pci_controller *next;
        struct pci_bus *bus;
	struct resource *io_space;
	struct resource *mem_space;

	/* The following are for reporting to userland.  The invariant is
	   that if we report a BWX-capable dense memory, we do not report
	   a sparse memory at all, even if it exists.  */
	unsigned long sparse_mem_base;
	unsigned long dense_mem_base;
	unsigned long sparse_io_base;
	unsigned long dense_io_base;

	/* This one's for the kernel only.  It's in KSEG somewhere.  */
	unsigned long config_space_base;

	unsigned int index;
	/* For compatibility with current (as of July 2003) pciutils
	   and XFree86. Eventually will be removed. */
	unsigned int need_domain_info;

	struct pci_iommu_arena *sg_pci;
	struct pci_iommu_arena *sg_isa;

	void *sysdata;
};

/* Override the logic in pci_scan_bus for skipping already-configured
   bus numbers.  */

#define pcibios_assign_all_busses()	1

#define PCIBIOS_MIN_IO		alpha_mv.min_io_address
#define PCIBIOS_MIN_MEM		alpha_mv.min_mem_address

/* IOMMU controls.  */

/* The PCI address space does not 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  0

/* TODO: integrate with include/asm-generic/pci.h ? */
static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
{
	return channel ? 15 : 14;
}

#define pci_domain_nr(bus) ((struct pci_controller *)(bus)->sysdata)->index

static inline int pci_proc_domain(struct pci_bus *bus)
{
	struct pci_controller *hose = bus->sysdata;
	return hose->need_domain_info;
}

#endif /* __KERNEL__ */

/* Values for the `which' argument to sys_pciconfig_iobase.  */
#define IOBASE_HOSE		0
#define IOBASE_SPARSE_MEM	1
#define IOBASE_DENSE_MEM	2
#define IOBASE_SPARSE_IO	3
#define IOBASE_DENSE_IO		4
#define IOBASE_ROOT_BUS		5
#define IOBASE_FROM_HOSE	0x10000

extern struct pci_dev *isa_bridge;

extern int pci_legacy_read(struct pci_bus *bus, loff_t port, u32 *val,
			   size_t count);
extern int pci_legacy_write(struct pci_bus *bus, loff_t port, u32 val,
			    size_t count);
extern int pci_mmap_legacy_page_range(struct pci_bus *bus,
				      struct vm_area_struct *vma,
				      enum pci_mmap_state mmap_state);
extern void pci_adjust_legacy_attr(struct pci_bus *bus,
				   enum pci_mmap_state mmap_type);
#define HAVE_PCI_LEGACY	1

extern int pci_create_resource_files(struct pci_dev *dev);
extern void pci_remove_resource_files(struct pci_dev *dev);

#endif /* __ALPHA_PCI_H */

Filemanager

Name Type Size Permission Actions
Kbuild File 320 B 0644
a.out-core.h File 2.41 KB 0644
a.out.h File 574 B 0644
agp.h File 457 B 0644
agp_backend.h File 948 B 0644
asm-offsets.h File 35 B 0644
asm-prototypes.h File 405 B 0644
atomic.h File 9.15 KB 0644
barrier.h File 2.17 KB 0644
bitops.h File 8.83 KB 0644
bug.h File 571 B 0644
bugs.h File 294 B 0644
cache.h File 507 B 0644
cacheflush.h File 2.68 KB 0644
checksum.h File 1.93 KB 0644
cmpxchg.h File 1.67 KB 0644
compiler.h File 498 B 0644
console.h File 1.06 KB 0644
core_apecs.h File 16.91 KB 0644
core_cia.h File 15.43 KB 0644
core_irongate.h File 6.63 KB 0644
core_lca.h File 11.36 KB 0644
core_marvel.h File 9.15 KB 0644
core_mcpcia.h File 11.45 KB 0644
core_polaris.h File 2.92 KB 0644
core_t2.h File 19.13 KB 0644
core_titan.h File 11.2 KB 0644
core_tsunami.h File 8.29 KB 0644
core_wildfire.h File 8.45 KB 0644
delay.h File 264 B 0644
device.h File 129 B 0644
div64.h File 31 B 0644
dma-mapping.h File 276 B 0644
dma.h File 12.37 KB 0644
elf.h File 5.71 KB 0644
emergency-restart.h File 149 B 0644
err_common.h File 3.24 KB 0644
err_ev6.h File 116 B 0644
err_ev7.h File 4.37 KB 0644
extable.h File 1.42 KB 0644
floppy.h File 3.07 KB 0644
fpu.h File 1.78 KB 0644
ftrace.h File 12 B 0644
futex.h File 1.97 KB 0644
gct.h File 1.02 KB 0644
hardirq.h File 223 B 0644
hw_irq.h File 302 B 0644
hwrpb.h File 6.9 KB 0644
io.h File 15.03 KB 0644
io_trivial.h File 3.07 KB 0644
irq.h File 2.31 KB 0644
irq_regs.h File 34 B 0644
irqflags.h File 1.17 KB 0644
jensen.h File 8.39 KB 0644
kdebug.h File 32 B 0644
kmap_types.h File 265 B 0644
linkage.h File 256 B 0644
local.h File 2.59 KB 0644
local64.h File 33 B 0644
machvec.h File 3.68 KB 0644
mc146818rtc.h File 680 B 0644
mce.h File 4.04 KB 0644
mmu.h File 203 B 0644
mmu_context.h File 7.09 KB 0644
mmzone.h File 2.98 KB 0644
module.h File 329 B 0644
page.h File 2.46 KB 0644
pal.h File 5.01 KB 0644
param.h File 284 B 0644
parport.h File 536 B 0644
pci.h File 2.87 KB 0644
percpu.h File 527 B 0644
perf_event.h File 105 B 0644
pgalloc.h File 1.82 KB 0644
pgtable.h File 13.17 KB 0644
processor.h File 2.07 KB 0644
ptrace.h File 754 B 0644
rwsem.h File 4.62 KB 0644
segment.h File 132 B 0644
serial.h File 1.01 KB 0644
sfp-machine.h File 2.86 KB 0644
shmparam.h File 191 B 0644
signal.h File 627 B 0644
smp.h File 1.34 KB 0644
socket.h File 310 B 0644
special_insns.h File 925 B 0644
spinlock.h File 2.85 KB 0644
spinlock_types.h File 413 B 0644
string.h File 2.42 KB 0644
switch_to.h File 406 B 0644
syscall.h File 235 B 0644
termios.h File 2.98 KB 0644
thread_info.h File 3.63 KB 0644
timex.h File 827 B 0644
tlb.h File 473 B 0644
tlbflush.h File 3.37 KB 0644
topology.h File 957 B 0644
types.h File 143 B 0644
uaccess.h File 9.56 KB 0644
ucontext.h File 348 B 0644
unaligned.h File 340 B 0644
unistd.h File 494 B 0644
user.h File 2.14 KB 0644
vga.h File 2 KB 0644
word-at-a-time.h File 1.34 KB 0644
wrperfmon.h File 2.56 KB 0644
xchg.h File 5.74 KB 0644
xor.h File 21.71 KB 0644