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 u8 (*mv_ioread8)(const void __iomem *); 50 u16 (*mv_ioread16)(const void __iomem *); 51 u32 (*mv_ioread32)(const void __iomem *); 52 u64 (*mv_ioread64)(const void __iomem *); 53 54 void (*mv_iowrite8)(u8, void __iomem *); 55 void (*mv_iowrite16)(u16, void __iomem *); 56 void (*mv_iowrite32)(u32, void __iomem *); 57 void (*mv_iowrite64)(u64, void __iomem *); 58 59 u8 (*mv_readb)(const volatile void __iomem *); 60 u16 (*mv_readw)(const volatile void __iomem *); 61 u32 (*mv_readl)(const volatile void __iomem *); 62 u64 (*mv_readq)(const volatile void __iomem *); 63 64 void (*mv_writeb)(u8, volatile void __iomem *); 65 void (*mv_writew)(u16, volatile void __iomem *); 66 void (*mv_writel)(u32, volatile void __iomem *); 67 void (*mv_writeq)(u64, volatile void __iomem *); 68 69 void __iomem *(*mv_ioportmap)(unsigned long); 70 void __iomem *(*mv_ioremap)(unsigned long, unsigned long); 71 void (*mv_iounmap)(volatile void __iomem *); 72 int (*mv_is_ioaddr)(unsigned long); 73 int (*mv_is_mmio)(const volatile void __iomem *); 74 75 void (*update_irq_hw)(unsigned long, unsigned long, int); 76 void (*ack_irq)(unsigned long); 77 void (*device_interrupt)(unsigned long vector); 78 void (*machine_check)(unsigned long vector, unsigned long la); 79 80 void (*smp_callin)(void); 81 void (*init_arch)(void); 82 void (*init_irq)(void); 83 void (*init_rtc)(void); 84 void (*init_pci)(void); 85 void (*kill_arch)(int); 86 87 u8 (*pci_swizzle)(struct pci_dev *, u8 *); 88 int (*pci_map_irq)(const struct pci_dev *, u8, u8); 89 struct pci_ops *pci_ops; 90 91 struct _alpha_agp_info *(*agp_info)(void); 92 93 const char *vector_name; 94 95 /* System specific parameters. */ 96 union { 97 struct { 98 unsigned long gru_int_req_bits; 99 } cia; 100 101 struct { 102 unsigned long gamma_bias; 103 } t2; 104 105 struct { 106 unsigned int route_tab; 107 } sio; 108 } sys; 109 }; 110 111 extern struct alpha_machine_vector alpha_mv; 112 113 #ifdef CONFIG_ALPHA_GENERIC 114 extern int alpha_using_srm; 115 extern int alpha_using_qemu; 116 #else 117 # ifdef CONFIG_ALPHA_SRM 118 # define alpha_using_srm 1 119 # else 120 # define alpha_using_srm 0 121 # endif 122 # ifdef CONFIG_ALPHA_QEMU 123 # define alpha_using_qemu 1 124 # else 125 # define alpha_using_qemu 0 126 # endif 127 #endif /* GENERIC */ 128 129 #endif /* __KERNEL__ */ 130 #endif /* __ALPHA_MACHVEC_H */ 131