1 /* $NetBSD: machdep.h,v 1.35 2020/08/28 13:36:52 skrll Exp $ */ 2 3 #ifndef _ARM32_MACHDEP_H_ 4 #define _ARM32_MACHDEP_H_ 5 6 #ifdef _KERNEL 7 8 #define INIT_ARM_STACK_SHIFT 12 9 #define INIT_ARM_STACK_SIZE (1 << INIT_ARM_STACK_SHIFT) 10 #define INIT_ARM_TOTAL_STACK (INIT_ARM_STACK_SIZE * MAXCPUS) 11 12 /* Define various stack sizes in pages */ 13 #ifndef IRQ_STACK_SIZE 14 #define IRQ_STACK_SIZE 1 15 #endif 16 #ifndef ABT_STACK_SIZE 17 #define ABT_STACK_SIZE 1 18 #endif 19 #ifndef UND_STACK_SIZE 20 #define UND_STACK_SIZE 1 21 #endif 22 #ifndef FIQ_STACK_SIZE 23 #define FIQ_STACK_SIZE 1 24 #endif 25 26 extern void (*cpu_reset_address)(void); 27 extern paddr_t cpu_reset_address_paddr; 28 29 extern void (*cpu_powerdown_address)(void); 30 31 extern u_int data_abort_handler_address; 32 extern u_int prefetch_abort_handler_address; 33 // extern u_int undefined_handler_address; 34 #define undefined_handler_address (curcpu()->ci_undefsave[2]) 35 36 struct bootmem_info { 37 paddr_t bmi_start; 38 paddr_t bmi_kernelstart; 39 paddr_t bmi_kernelend; 40 paddr_t bmi_end; 41 pv_addrqh_t bmi_freechunks; 42 pv_addrqh_t bmi_chunks; /* sorted list of memory to be mapped */ 43 pv_addr_t bmi_freeblocks[4]; 44 /* 45 * These need to be static for pmap's kernel_pt list. 46 */ 47 pv_addr_t bmi_vector_l2pt; 48 pv_addr_t bmi_io_l2pt; 49 pv_addr_t bmi_l2pts[32]; // for large memory disks. 50 u_int bmi_freepages; 51 u_int bmi_nfreeblocks; 52 }; 53 54 extern struct bootmem_info bootmem_info; 55 56 extern char *booted_kernel; 57 extern u_long kern_vtopdiff; 58 59 /* misc prototypes used by the many arm machdeps */ 60 void cortex_pmc_ccnt_init(void); 61 void cpu_hatch(struct cpu_info *, u_int, void (*)(struct cpu_info *)); 62 void halt(void); 63 void parse_mi_bootargs(char *); 64 void data_abort_handler(trapframe_t *); 65 void prefetch_abort_handler(trapframe_t *); 66 void undefinedinstruction_bounce(trapframe_t *); 67 void dumpsys(void); 68 69 /* 70 * note that we use void * as all the platforms have different ideas on what 71 * the structure is 72 */ 73 vaddr_t initarm(void *); 74 struct pmap_devmap; 75 struct boot_physmem; 76 77 void cpu_startup_hook(void); 78 void cpu_startup_default(void); 79 80 static inline paddr_t 81 aarch32_kern_vtophys(vaddr_t va) 82 { 83 return va - kern_vtopdiff; 84 } 85 86 static inline vaddr_t 87 aarch32_kern_phystov(paddr_t pa) 88 { 89 return pa + kern_vtopdiff; 90 } 91 92 #define KERN_VTOPHYS(va) aarch32_kern_vtophys(va) 93 #define KERN_PHYSTOV(pa) aarch32_kern_phystov(pa) 94 95 void cpu_kernel_vm_init(paddr_t, psize_t); 96 97 void arm32_bootmem_init(paddr_t memstart, psize_t memsize, paddr_t kernelstart); 98 void arm32_kernel_vm_init(vaddr_t kvm_base, vaddr_t vectors, 99 vaddr_t iovbase /* (can be zero) */, 100 const struct pmap_devmap *devmap, bool mapallmem_p); 101 vaddr_t initarm_common(vaddr_t kvm_base, vsize_t kvm_size, 102 const struct boot_physmem *bp, size_t nbp); 103 104 void uartputc(int); 105 106 /* from arm/arm32/intr.c */ 107 void dosoftints(void); 108 void set_spl_masks(void); 109 #ifdef DIAGNOSTIC 110 void dump_spl_masks(void); 111 #endif 112 113 #endif /* _KERNEL */ 114 115 #endif /* _ARM32_MACHDEP_H_ */ 116