2 * This file is subject to the terms and conditions of the GNU General Public
3 * License. See the file "COPYING" in the main directory of this archive
6 * Copyright (C) 1992-1997,2000-2006 Silicon Graphics, Inc. All rights reserved.
8 #ifndef _ASM_IA64_SN_PCI_PCIBR_PROVIDER_H
9 #define _ASM_IA64_SN_PCI_PCIBR_PROVIDER_H
11 #include <asm/sn/intr.h>
12 #include <asm/sn/pcibus_provider_defs.h>
15 #define PV907516 (1 << 1) /* TIOCP: Don't write the write buffer flush reg */
17 #define BUSTYPE_MASK 0x1
19 /* Macros given a pcibus structure */
20 #define IS_PCIX(ps) ((ps)->pbi_bridge_mode & BUSTYPE_MASK)
21 #define IS_PCI_BRIDGE_ASIC(asic) (asic == PCIIO_ASIC_TYPE_PIC || \
22 asic == PCIIO_ASIC_TYPE_TIOCP)
23 #define IS_PIC_SOFT(ps) (ps->pbi_bridge_type == PCIBR_BRIDGETYPE_PIC)
24 #define IS_TIOCP_SOFT(ps) (ps->pbi_bridge_type == PCIBR_BRIDGETYPE_TIOCP)
28 * The different PCI Bridge types supported on the SGI Altix platforms
30 #define PCIBR_BRIDGETYPE_UNKNOWN -1
31 #define PCIBR_BRIDGETYPE_PIC 2
32 #define PCIBR_BRIDGETYPE_TIOCP 3
35 * Bridge 64bit Direct Map Attributes
37 #define PCI64_ATTR_PREF (1ull << 59)
38 #define PCI64_ATTR_PREC (1ull << 58)
39 #define PCI64_ATTR_VIRTUAL (1ull << 57)
40 #define PCI64_ATTR_BAR (1ull << 56)
41 #define PCI64_ATTR_SWAP (1ull << 55)
42 #define PCI64_ATTR_VIRTUAL1 (1ull << 54)
44 #define PCI32_LOCAL_BASE 0
45 #define PCI32_MAPPED_BASE 0x40000000
46 #define PCI32_DIRECT_BASE 0x80000000
48 #define IS_PCI32_MAPPED(x) ((u64)(x) < PCI32_DIRECT_BASE && \
49 (u64)(x) >= PCI32_MAPPED_BASE)
50 #define IS_PCI32_DIRECT(x) ((u64)(x) >= PCI32_MAPPED_BASE)
54 * Bridge PMU Address Transaltion Entry Attibutes
56 #define PCI32_ATE_V (0x1 << 0)
57 #define PCI32_ATE_CO (0x1 << 1) /* PIC ASIC ONLY */
58 #define PCI32_ATE_PIO (0x1 << 1) /* TIOCP ASIC ONLY */
59 #define PCI32_ATE_MSI (0x1 << 2)
60 #define PCI32_ATE_PREF (0x1 << 3)
61 #define PCI32_ATE_BAR (0x1 << 4)
62 #define PCI32_ATE_ADDR_SHFT 12
64 #define MINIMAL_ATES_REQUIRED(addr, size) \
65 (IOPG(IOPGOFF(addr) + (size) - 1) == IOPG((size) - 1))
67 #define MINIMAL_ATE_FLAG(addr, size) \
68 (MINIMAL_ATES_REQUIRED((u64)addr, size) ? 1 : 0)
70 /* bit 29 of the pci address is the SWAP bit */
71 #define ATE_SWAPSHIFT 29
72 #define ATE_SWAP_ON(x) ((x) |= (1 << ATE_SWAPSHIFT))
73 #define ATE_SWAP_OFF(x) ((x) &= ~(1 << ATE_SWAPSHIFT))
79 #define IOPFNSHIFT 12 /* 4K per mapped page */
81 #define IOPFNSHIFT 14 /* 16K per mapped page */
84 #define IOPGSIZE (1 << IOPFNSHIFT)
85 #define IOPG(x) ((x) >> IOPFNSHIFT)
86 #define IOPGOFF(x) ((x) & (IOPGSIZE-1))
88 #define PCIBR_DEV_SWAP_DIR (1ull << 19)
89 #define PCIBR_CTRL_PAGE_SIZE (0x1 << 21)
97 u64 lowest_free_index;
101 struct pcibus_bussoft pbi_buscommon; /* common header */
103 short pbi_bridge_type;
104 short pbi_bridge_mode;
106 struct ate_resource pbi_int_ate_resource;
107 u64 pbi_int_ate_size;
114 u32 pbi_valid_devices;
115 u32 pbi_enabled_devices;
120 extern int pcibr_init_provider(void);
121 extern void *pcibr_bus_fixup(struct pcibus_bussoft *, struct pci_controller *);
122 extern dma_addr_t pcibr_dma_map(struct pci_dev *, unsigned long, size_t, int type);
123 extern dma_addr_t pcibr_dma_map_consistent(struct pci_dev *, unsigned long, size_t, int type);
124 extern void pcibr_dma_unmap(struct pci_dev *, dma_addr_t, int);
127 * prototypes for the bridge asic register access routines in pcibr_reg.c
129 extern void pcireg_control_bit_clr(struct pcibus_info *, u64);
130 extern void pcireg_control_bit_set(struct pcibus_info *, u64);
131 extern u64 pcireg_tflush_get(struct pcibus_info *);
132 extern u64 pcireg_intr_status_get(struct pcibus_info *);
133 extern void pcireg_intr_enable_bit_clr(struct pcibus_info *, u64);
134 extern void pcireg_intr_enable_bit_set(struct pcibus_info *, u64);
135 extern void pcireg_intr_addr_addr_set(struct pcibus_info *, int, u64);
136 extern void pcireg_force_intr_set(struct pcibus_info *, int);
137 extern u64 pcireg_wrb_flush_get(struct pcibus_info *, int);
138 extern void pcireg_int_ate_set(struct pcibus_info *, int, u64);
139 extern u64 __iomem * pcireg_int_ate_addr(struct pcibus_info *, int);
140 extern void pcibr_force_interrupt(struct sn_irq_info *sn_irq_info);
141 extern void pcibr_change_devices_irq(struct sn_irq_info *sn_irq_info);
142 extern int pcibr_ate_alloc(struct pcibus_info *, int);
143 extern void pcibr_ate_free(struct pcibus_info *, int);
144 extern void ate_write(struct pcibus_info *, int, int, u64);
145 extern int sal_pcibr_slot_enable(struct pcibus_info *soft, int device,
146 void *resp, char **ssdt);
147 extern int sal_pcibr_slot_disable(struct pcibus_info *soft, int device,
148 int action, void *resp);
149 extern u16 sn_ioboard_to_pci_bus(struct pci_bus *pci_bus);