1 /* pbm.h: UltraSparc PCI controller software state.
3 * Copyright (C) 1997, 1998, 1999, 2007 David S. Miller (davem@davemloft.net)
6 #ifndef __SPARC64_PBM_H
7 #define __SPARC64_PBM_H
9 #include <linux/types.h>
10 #include <linux/pci.h>
11 #include <linux/ioport.h>
12 #include <linux/spinlock.h>
13 #include <linux/msi.h>
17 #include <asm/oplib.h>
19 #include <asm/of_device.h>
20 #include <asm/iommu.h>
22 /* The abstraction used here is that there are PCI controllers,
23 * each with one (Sabre) or two (PSYCHO/SCHIZO) PCI bus modules
24 * underneath. Each PCI bus module uses an IOMMU (shared by both
25 * PBMs of a controller, or per-PBM), and if a streaming buffer
26 * is present, each PCI bus module has it's own. (ie. the IOMMU
27 * might be shared between PBMs, the STC is never shared)
28 * Furthermore, each PCI bus module controls it's own autonomous
32 extern void pci_iommu_table_init(struct iommu *iommu, int tsbsize, u32 dma_offset, u32 dma_addr_mask);
34 #define PCI_STC_FLUSHFLAG_INIT(STC) \
35 (*((STC)->strbuf_flushflag) = 0UL)
36 #define PCI_STC_FLUSHFLAG_SET(STC) \
37 (*((STC)->strbuf_flushflag) != 0UL)
39 struct pci_controller_info;
42 struct pci_pbm_info *next;
44 /* PCI controller we sit under. */
45 struct pci_controller_info *parent;
47 /* Physical address base of controller registers. */
48 unsigned long controller_regs;
50 /* Physical address base of PBM registers. */
51 unsigned long pbm_regs;
53 /* Physical address of DMA sync register, if any. */
54 unsigned long sync_reg;
56 /* Opaque 32-bit system bus Port ID. */
59 /* Opaque 32-bit handle used for hypervisor calls. */
62 /* Chipset version information. */
64 #define PBM_CHIP_TYPE_SABRE 1
65 #define PBM_CHIP_TYPE_PSYCHO 2
66 #define PBM_CHIP_TYPE_SCHIZO 3
67 #define PBM_CHIP_TYPE_SCHIZO_PLUS 4
68 #define PBM_CHIP_TYPE_TOMATILLO 5
72 /* Name used for top-level resources. */
75 /* OBP specific information. */
76 struct device_node *prom_node;
79 /* PBM I/O and Memory space resources. */
80 struct resource io_space;
81 struct resource mem_space;
83 /* Base of PCI Config space, can be per-PBM or shared. */
84 unsigned long config_space;
86 /* State of 66MHz capabilities on this PBM. */
95 u32 msiq_first_devino;
105 unsigned long *msi_bitmap;
106 #endif /* !(CONFIG_PCI_MSI) */
108 /* This PBM's streaming buffer. */
111 /* IOMMU state, potentially shared by both PBM segments. */
114 /* Now things for the actual PCI bus probes. */
115 unsigned int pci_first_busno;
116 unsigned int pci_last_busno;
117 struct pci_bus *pci_bus;
118 void (*scan_bus)(struct pci_pbm_info *);
119 struct pci_ops *pci_ops;
122 struct pci_controller_info {
123 /* Each controller gets a unique index, used mostly for
124 * error logging purposes.
128 /* The PCI bus modules controlled by us. */
129 struct pci_pbm_info pbm_A;
130 struct pci_pbm_info pbm_B;
132 /* Operations which are controller specific. */
133 #ifdef CONFIG_PCI_MSI
134 int (*setup_msi_irq)(unsigned int *virt_irq_p, struct pci_dev *pdev,
135 struct msi_desc *entry);
136 void (*teardown_msi_irq)(unsigned int virt_irq, struct pci_dev *pdev);
140 #endif /* !(__SPARC64_PBM_H) */