1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef __ALPHA_MACHVEC_H 3 #define __ALPHA_MACHVEC_H 1 4 5 #include <linux/types.h> 6 7 /* 8 * This file gets pulled in by asm/io.h from user space. We don't 9 * want most of this escaping. 10 */ 11 12 #ifdef __KERNEL__ 13 14 /* The following structure vectors all of the I/O and IRQ manipulation 15 from the generic kernel to the hardware specific backend. */ 16 17 struct task_struct; 18 struct mm_struct; 19 struct vm_area_struct; 20 struct linux_hose_info; 21 struct pci_dev; 22 struct pci_ops; 23 struct pci_controller; 24 struct _alpha_agp_info; 25 struct rtc_time; 26 27 struct alpha_machine_vector 28 { 29 /* This "belongs" down below with the rest of the runtime 30 variables, but it is convenient for entry.S if these 31 two slots are at the beginning of the struct. */ 32 unsigned long hae_cache; 33 unsigned long *hae_register; 34 35 int nr_irqs; 36 int rtc_port; 37 int rtc_boot_cpu_only; 38 unsigned int max_asn; 39 unsigned long max_isa_dma_address; 40 unsigned long irq_probe_mask; 41 unsigned long iack_sc; 42 unsigned long min_io_address; 43 unsigned long min_mem_address; 44 unsigned long pci_dac_offset; 45 46 void (*mv_pci_tbi)(struct pci_controller *hose, 47 dma_addr_t start, dma_addr_t end); 48 49 unsigned int (*mv_ioread8)(const void __iomem *); 50 unsigned int (*mv_ioread16)(const void __iomem *); 51 unsigned int (*mv_ioread32)(const void __iomem *); 52 53 void (*mv_iowrite8)(u8, void __iomem *); 54 void (*mv_iowrite16)(u16, void __iomem *); 55 void (*mv_iowrite32)(u32, void __iomem *); 56 57 u8 (*mv_readb)(const volatile void __iomem *); 58 u16 (*mv_readw)(const volatile void __iomem *); 59 u32 (*mv_readl)(const volatile void __iomem *); 60 u64 (*mv_readq)(const volatile void __iomem *); 61 62 void (*mv_writeb)(u8, volatile void __iomem *); 63 void (*mv_writew)(u16, volatile void __iomem *); 64 void (*mv_writel)(u32, volatile void __iomem *); 65 void (*mv_writeq)(u64, volatile void __iomem *); 66 67 void __iomem *(*mv_ioportmap)(unsigned long); 68 void __iomem *(*mv_ioremap)(unsigned long, unsigned long); 69 void (*mv_iounmap)(volatile void __iomem *); 70 int (*mv_is_ioaddr)(unsigned long); 71 int (*mv_is_mmio)(const volatile void __iomem *); 72 73 void (*mv_switch_mm)(struct mm_struct *, struct mm_struct *, 74 struct task_struct *); 75 void (*mv_activate_mm)(struct mm_struct *, struct mm_struct *); 76 77 void (*mv_flush_tlb_current)(struct mm_struct *); 78 void (*mv_flush_tlb_current_page)(struct mm_struct * mm, 79 struct vm_area_struct *vma, 80 unsigned long addr); 81 82 void (*update_irq_hw)(unsigned long, unsigned long, int); 83 void (*ack_irq)(unsigned long); 84 void (*device_interrupt)(unsigned long vector); 85 void (*machine_check)(unsigned long vector, unsigned long la); 86 87 void (*smp_callin)(void); 88 void (*init_arch)(void); 89 void (*init_irq)(void); 90 void (*init_rtc)(void); 91 void (*init_pci)(void); 92 void (*kill_arch)(int); 93 94 u8 (*pci_swizzle)(struct pci_dev *, u8 *); 95 int (*pci_map_irq)(const struct pci_dev *, u8, u8); 96 struct pci_ops *pci_ops; 97 98 struct _alpha_agp_info *(*agp_info)(void); 99 100 const char *vector_name; 101 102 /* System specific parameters. */ 103 union { 104 struct { 105 unsigned long gru_int_req_bits; 106 } cia; 107 108 struct { 109 unsigned long gamma_bias; 110 } t2; 111 112 struct { 113 unsigned int route_tab; 114 } sio; 115 } sys; 116 }; 117 118 extern struct alpha_machine_vector alpha_mv; 119 120 #ifdef CONFIG_ALPHA_GENERIC 121 extern int alpha_using_srm; 122 extern int alpha_using_qemu; 123 #else 124 # ifdef CONFIG_ALPHA_SRM 125 # define alpha_using_srm 1 126 # else 127 # define alpha_using_srm 0 128 # endif 129 # ifdef CONFIG_ALPHA_QEMU 130 # define alpha_using_qemu 1 131 # else 132 # define alpha_using_qemu 0 133 # endif 134 #endif /* GENERIC */ 135 136 #endif /* __KERNEL__ */ 137 #endif /* __ALPHA_MACHVEC_H */ 138