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/* pbm.h: UltraSparc PCI controller software state.
*
* Copyright (C) 1997, 1998, 1999, 2007 David S. Miller (davem@davemloft.net)
*/
#ifndef __SPARC64_PBM_H
#define __SPARC64_PBM_H
#include <linux/types.h>
#include <linux/pci.h>
#include <linux/ioport.h>
#include <linux/spinlock.h>
#include <linux/msi.h>
#include <asm/io.h>
#include <asm/page.h>
#include <asm/oplib.h>
#include <asm/prom.h>
#include <asm/of_device.h>
#include <asm/iommu.h>
/* The abstraction used here is that there are PCI controllers,
* each with one (Sabre) or two (PSYCHO/SCHIZO) PCI bus modules
* underneath. Each PCI bus module uses an IOMMU (shared by both
* PBMs of a controller, or per-PBM), and if a streaming buffer
* is present, each PCI bus module has it's own. (ie. the IOMMU
* might be shared between PBMs, the STC is never shared)
* Furthermore, each PCI bus module controls it's own autonomous
* PCI bus.
*/
extern void pci_iommu_table_init(struct iommu *iommu, int tsbsize, u32 dma_offset, u32 dma_addr_mask);
#define PCI_STC_FLUSHFLAG_INIT(STC) \
(*((STC)->strbuf_flushflag) = 0UL)
#define PCI_STC_FLUSHFLAG_SET(STC) \
(*((STC)->strbuf_flushflag) != 0UL)
struct pci_controller_info;
struct pci_pbm_info {
struct pci_pbm_info *next;
/* PCI controller we sit under. */
struct pci_controller_info *parent;
/* Physical address base of controller registers. */
unsigned long controller_regs;
/* Physical address base of PBM registers. */
unsigned long pbm_regs;
/* Physical address of DMA sync register, if any. */
unsigned long sync_reg;
/* Opaque 32-bit system bus Port ID. */
u32 portid;
/* Opaque 32-bit handle used for hypervisor calls. */
u32 devhandle;
/* Chipset version information. */
int chip_type;
#define PBM_CHIP_TYPE_SABRE 1
#define PBM_CHIP_TYPE_PSYCHO 2
#define PBM_CHIP_TYPE_SCHIZO 3
#define PBM_CHIP_TYPE_SCHIZO_PLUS 4
#define PBM_CHIP_TYPE_TOMATILLO 5
int chip_version;
int chip_revision;
/* Name used for top-level resources. */
char *name;
/* OBP specific information. */
struct device_node *prom_node;
u64 ino_bitmap;
/* PBM I/O and Memory space resources. */
struct resource io_space;
struct resource mem_space;
/* Base of PCI Config space, can be per-PBM or shared. */
unsigned long config_space;
/* State of 66MHz capabilities on this PBM. */
int is_66mhz_capable;
int all_devs_66mhz;
#ifdef CONFIG_PCI_MSI
/* MSI info. */
u32 msiq_num;
u32 msiq_ent_count;
u32 msiq_first;
u32 msiq_first_devino;
u32 msi_num;
u32 msi_first;
u32 msi_data_mask;
u32 msix_data_width;
u64 msi32_start;
u64 msi64_start;
u32 msi32_len;
u32 msi64_len;
void *msi_queues;
unsigned long *msi_bitmap;
#endif /* !(CONFIG_PCI_MSI) */
/* This PBM's streaming buffer. */
struct strbuf stc;
/* IOMMU state, potentially shared by both PBM segments. */
struct iommu *iommu;
/* Now things for the actual PCI bus probes. */
unsigned int pci_first_busno;
unsigned int pci_last_busno;
struct pci_bus *pci_bus;
void (*scan_bus)(struct pci_pbm_info *);
struct pci_ops *pci_ops;
};
struct pci_controller_info {
/* Each controller gets a unique index, used mostly for
* error logging purposes.
*/
int index;
/* The PCI bus modules controlled by us. */
struct pci_pbm_info pbm_A;
struct pci_pbm_info pbm_B;
/* Operations which are controller specific. */
#ifdef CONFIG_PCI_MSI
int (*setup_msi_irq)(unsigned int *virt_irq_p, struct pci_dev *pdev,
struct msi_desc *entry);
void (*teardown_msi_irq)(unsigned int virt_irq, struct pci_dev *pdev);
#endif
};
#endif /* !(__SPARC64_PBM_H) */
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