[mirror_ubuntu-focal-kernel.git] / arch / ia64 / include / asm / pci.h

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_IA64_PCI_H
#define _ASM_IA64_PCI_H

#include <linux/mm.h>
#include <linux/slab.h>
#include <linux/spinlock.h>
#include <linux/string.h>
#include <linux/types.h>
#include <linux/scatterlist.h>

#include <asm/io.h>
#include <asm/hw_irq.h>

struct pci_vector_struct {
	__u16 segment;	/* PCI Segment number */
	__u16 bus;	/* PCI Bus number */
	__u32 pci_id;	/* ACPI split 16 bits device, 16 bits function (see section 6.1.1) */
	__u8 pin;	/* PCI PIN (0 = A, 1 = B, 2 = C, 3 = D) */
	__u32 irq;	/* IRQ assigned */
};

/*
 * 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		0x1000
#define PCIBIOS_MIN_MEM		0x10000000

#define HAVE_PCI_MMAP
#define ARCH_GENERIC_PCI_MMAP_RESOURCE
#define arch_can_pci_mmap_wc()	1

#define HAVE_PCI_LEGACY
extern int pci_mmap_legacy_page_range(struct pci_bus *bus,
				      struct vm_area_struct *vma,
				      enum pci_mmap_state mmap_state);

#define pci_get_legacy_mem platform_pci_get_legacy_mem
#define pci_legacy_read platform_pci_legacy_read
#define pci_legacy_write platform_pci_legacy_write

struct pci_controller {
	struct acpi_device *companion;
	void *iommu;
	int segment;
	int node;		/* nearest node with memory or NUMA_NO_NODE for global allocation */

	void *platform_data;
};


#define PCI_CONTROLLER(busdev) ((struct pci_controller *) busdev->sysdata)
#define pci_domain_nr(busdev)    (PCI_CONTROLLER(busdev)->segment)

extern struct pci_ops pci_root_ops;

static inline int pci_proc_domain(struct pci_bus *bus)
{
	return (pci_domain_nr(bus) != 0);
}

#define HAVE_ARCH_PCI_GET_LEGACY_IDE_IRQ
static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
{
	return channel ? isa_irq_to_vector(15) : isa_irq_to_vector(14);
}

#ifdef CONFIG_INTEL_IOMMU
extern void pci_iommu_alloc(void);
#endif
#endif /* _ASM_IA64_PCI_H */
Commit	Line	Data
b2441318	1	/* SPDX-License-Identifier: GPL-2.0 */
1da177e4 LT	2	#ifndef _ASM_IA64_PCI_H
	3	#define _ASM_IA64_PCI_H
	4
	5	#include <linux/mm.h>
	6	#include <linux/slab.h>
	7	#include <linux/spinlock.h>
	8	#include <linux/string.h>
	9	#include <linux/types.h>
84be456f	10	#include <linux/scatterlist.h>
1da177e4 LT	11
1da177e4 LT	12	#include <asm/io.h>
8621235b	13	#include <asm/hw_irq.h>
1da177e4	14
c140d879 DH	15	struct pci_vector_struct {
	16	__u16 segment; /* PCI Segment number */
	17	__u16 bus; /* PCI Bus number */
	18	__u32 pci_id; /* ACPI split 16 bits device, 16 bits function (see section 6.1.1) */
	19	__u8 pin; /* PCI PIN (0 = A, 1 = B, 2 = C, 3 = D) */
	20	__u32 irq; /* IRQ assigned */
	21	};
	22
1da177e4 LT	23	/*
	24	* Can be used to override the logic in pci_scan_bus for skipping already-configured bus
	25	* numbers - to be used for buggy BIOSes or architectures with incomplete PCI setup by the
	26	* loader.
	27	*/
	28	#define pcibios_assign_all_busses() 0
1da177e4 LT	29
	30	#define PCIBIOS_MIN_IO 0x1000
	31	#define PCIBIOS_MIN_MEM 0x10000000
	32
1da177e4	33	#define HAVE_PCI_MMAP
d9c102de	34	#define ARCH_GENERIC_PCI_MMAP_RESOURCE
ae749c7a DW	35	#define arch_can_pci_mmap_wc() 1
ae749c7a DW	36
1da177e4 LT	37	#define HAVE_PCI_LEGACY
1da177e4 LT	38	extern int pci_mmap_legacy_page_range(struct pci_bus *bus,
f19aeb1f BH	39	struct vm_area_struct *vma,
f19aeb1f BH	40	enum pci_mmap_state mmap_state);
1da177e4 LT	41
	42	#define pci_get_legacy_mem platform_pci_get_legacy_mem
	43	#define pci_legacy_read platform_pci_legacy_read
	44	#define pci_legacy_write platform_pci_legacy_write
	45
1da177e4	46	struct pci_controller {
7b199811	47	struct acpi_device *companion;
1da177e4 LT	48	void *iommu;
1da177e4 LT	49	int segment;
b1e9cee7	50	int node; /* nearest node with memory or NUMA_NO_NODE for global allocation */
1da177e4	51
1da177e4 LT	52	void *platform_data;
	53	};
	54
5cd7595d	55
1da177e4 LT	56	#define PCI_CONTROLLER(busdev) ((struct pci_controller *) busdev->sysdata)
	57	#define pci_domain_nr(busdev) (PCI_CONTROLLER(busdev)->segment)
	58
	59	extern struct pci_ops pci_root_ops;
	60
	61	static inline int pci_proc_domain(struct pci_bus *bus)
	62	{
	63	return (pci_domain_nr(bus) != 0);
	64	}
	65
677c0a78 BZ	66	#define HAVE_ARCH_PCI_GET_LEGACY_IDE_IRQ
	67	static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
	68	{
8621235b	69	return channel ? isa_irq_to_vector(15) : isa_irq_to_vector(14);
677c0a78 BZ	70	}
677c0a78 BZ	71
d3f13810	72	#ifdef CONFIG_INTEL_IOMMU
62fdd767 FY	73	extern void pci_iommu_alloc(void);
62fdd767 FY	74	#endif
1da177e4	75	#endif /* _ASM_IA64_PCI_H */