diff options
Diffstat (limited to 'arch/ia64/include/asm/sn/pcibr_provider.h')
| -rw-r--r-- | arch/ia64/include/asm/sn/pcibr_provider.h | 150 |
1 files changed, 150 insertions, 0 deletions
diff --git a/arch/ia64/include/asm/sn/pcibr_provider.h b/arch/ia64/include/asm/sn/pcibr_provider.h new file mode 100644 index 000000000..da205b7cd --- /dev/null +++ b/arch/ia64/include/asm/sn/pcibr_provider.h @@ -0,0 +1,150 @@ +/* + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + * + * Copyright (C) 1992-1997,2000-2006 Silicon Graphics, Inc. All rights reserved. + */ +#ifndef _ASM_IA64_SN_PCI_PCIBR_PROVIDER_H +#define _ASM_IA64_SN_PCI_PCIBR_PROVIDER_H + +#include <asm/sn/intr.h> +#include <asm/sn/pcibus_provider_defs.h> + +/* Workarounds */ +#define PV907516 (1 << 1) /* TIOCP: Don't write the write buffer flush reg */ + +#define BUSTYPE_MASK 0x1 + +/* Macros given a pcibus structure */ +#define IS_PCIX(ps) ((ps)->pbi_bridge_mode & BUSTYPE_MASK) +#define IS_PCI_BRIDGE_ASIC(asic) (asic == PCIIO_ASIC_TYPE_PIC || \ + asic == PCIIO_ASIC_TYPE_TIOCP) +#define IS_PIC_SOFT(ps) (ps->pbi_bridge_type == PCIBR_BRIDGETYPE_PIC) +#define IS_TIOCP_SOFT(ps) (ps->pbi_bridge_type == PCIBR_BRIDGETYPE_TIOCP) + + +/* + * The different PCI Bridge types supported on the SGI Altix platforms + */ +#define PCIBR_BRIDGETYPE_UNKNOWN -1 +#define PCIBR_BRIDGETYPE_PIC 2 +#define PCIBR_BRIDGETYPE_TIOCP 3 + +/* + * Bridge 64bit Direct Map Attributes + */ +#define PCI64_ATTR_PREF (1ull << 59) +#define PCI64_ATTR_PREC (1ull << 58) +#define PCI64_ATTR_VIRTUAL (1ull << 57) +#define PCI64_ATTR_BAR (1ull << 56) +#define PCI64_ATTR_SWAP (1ull << 55) +#define PCI64_ATTR_VIRTUAL1 (1ull << 54) + +#define PCI32_LOCAL_BASE 0 +#define PCI32_MAPPED_BASE 0x40000000 +#define PCI32_DIRECT_BASE 0x80000000 + +#define IS_PCI32_MAPPED(x) ((u64)(x) < PCI32_DIRECT_BASE && \ + (u64)(x) >= PCI32_MAPPED_BASE) +#define IS_PCI32_DIRECT(x) ((u64)(x) >= PCI32_MAPPED_BASE) + + +/* + * Bridge PMU Address Transaltion Entry Attibutes + */ +#define PCI32_ATE_V (0x1 << 0) +#define PCI32_ATE_CO (0x1 << 1) /* PIC ASIC ONLY */ +#define PCI32_ATE_PIO (0x1 << 1) /* TIOCP ASIC ONLY */ +#define PCI32_ATE_MSI (0x1 << 2) +#define PCI32_ATE_PREF (0x1 << 3) +#define PCI32_ATE_BAR (0x1 << 4) +#define PCI32_ATE_ADDR_SHFT 12 + +#define MINIMAL_ATES_REQUIRED(addr, size) \ + (IOPG(IOPGOFF(addr) + (size) - 1) == IOPG((size) - 1)) + +#define MINIMAL_ATE_FLAG(addr, size) \ + (MINIMAL_ATES_REQUIRED((u64)addr, size) ? 1 : 0) + +/* bit 29 of the pci address is the SWAP bit */ +#define ATE_SWAPSHIFT 29 +#define ATE_SWAP_ON(x) ((x) |= (1 << ATE_SWAPSHIFT)) +#define ATE_SWAP_OFF(x) ((x) &= ~(1 << ATE_SWAPSHIFT)) + +/* + * I/O page size + */ +#if PAGE_SIZE < 16384 +#define IOPFNSHIFT 12 /* 4K per mapped page */ +#else +#define IOPFNSHIFT 14 /* 16K per mapped page */ +#endif + +#define IOPGSIZE (1 << IOPFNSHIFT) +#define IOPG(x) ((x) >> IOPFNSHIFT) +#define IOPGOFF(x) ((x) & (IOPGSIZE-1)) + +#define PCIBR_DEV_SWAP_DIR (1ull << 19) +#define PCIBR_CTRL_PAGE_SIZE (0x1 << 21) + +/* + * PMU resources. + */ +struct ate_resource{ + u64 *ate; + u64 num_ate; + u64 lowest_free_index; +}; + +struct pcibus_info { + struct pcibus_bussoft pbi_buscommon; /* common header */ + u32 pbi_moduleid; + short pbi_bridge_type; + short pbi_bridge_mode; + + struct ate_resource pbi_int_ate_resource; + u64 pbi_int_ate_size; + + u64 pbi_dir_xbase; + char pbi_hub_xid; + + u64 pbi_devreg[8]; + + u32 pbi_valid_devices; + u32 pbi_enabled_devices; + + spinlock_t pbi_lock; +}; + +extern int pcibr_init_provider(void); +extern void *pcibr_bus_fixup(struct pcibus_bussoft *, struct pci_controller *); +extern dma_addr_t pcibr_dma_map(struct pci_dev *, unsigned long, size_t, int type); +extern dma_addr_t pcibr_dma_map_consistent(struct pci_dev *, unsigned long, size_t, int type); +extern void pcibr_dma_unmap(struct pci_dev *, dma_addr_t, int); + +/* + * prototypes for the bridge asic register access routines in pcibr_reg.c + */ +extern void pcireg_control_bit_clr(struct pcibus_info *, u64); +extern void pcireg_control_bit_set(struct pcibus_info *, u64); +extern u64 pcireg_tflush_get(struct pcibus_info *); +extern u64 pcireg_intr_status_get(struct pcibus_info *); +extern void pcireg_intr_enable_bit_clr(struct pcibus_info *, u64); +extern void pcireg_intr_enable_bit_set(struct pcibus_info *, u64); +extern void pcireg_intr_addr_addr_set(struct pcibus_info *, int, u64); +extern void pcireg_force_intr_set(struct pcibus_info *, int); +extern u64 pcireg_wrb_flush_get(struct pcibus_info *, int); +extern void pcireg_int_ate_set(struct pcibus_info *, int, u64); +extern u64 __iomem * pcireg_int_ate_addr(struct pcibus_info *, int); +extern void pcibr_force_interrupt(struct sn_irq_info *sn_irq_info); +extern void pcibr_change_devices_irq(struct sn_irq_info *sn_irq_info); +extern int pcibr_ate_alloc(struct pcibus_info *, int); +extern void pcibr_ate_free(struct pcibus_info *, int); +extern void ate_write(struct pcibus_info *, int, int, u64); +extern int sal_pcibr_slot_enable(struct pcibus_info *soft, int device, + void *resp, char **ssdt); +extern int sal_pcibr_slot_disable(struct pcibus_info *soft, int device, + int action, void *resp); +extern u16 sn_ioboard_to_pci_bus(struct pci_bus *pci_bus); +#endif |