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machdep.h revision 1.23 
      1 /* $NetBSD: machdep.h,v 1.23 2018/08/01 13:48:00 skrll Exp $ */
      2 
      3 #ifndef _ARM32_MACHDEP_H_
      4 #define _ARM32_MACHDEP_H_
      5 
      6 /* Define various stack sizes in pages */
      7 #ifndef IRQ_STACK_SIZE
      8 #define IRQ_STACK_SIZE	1
      9 #endif
     10 #ifndef ABT_STACK_SIZE
     11 #define ABT_STACK_SIZE	1
     12 #endif
     13 #ifndef UND_STACK_SIZE
     14 #define UND_STACK_SIZE	1
     15 #endif
     16 #ifndef FIQ_STACK_SIZE
     17 #define FIQ_STACK_SIZE	1
     18 #endif
     19 
     20 
     21 extern void (*cpu_reset_address)(void);
     22 extern paddr_t cpu_reset_address_paddr;
     23 
     24 extern void (*cpu_powerdown_address)(void);
     25 
     26 extern u_int data_abort_handler_address;
     27 extern u_int prefetch_abort_handler_address;
     28 // extern u_int undefined_handler_address;
     29 #define	undefined_handler_address (curcpu()->ci_undefsave[2])
     30 
     31 struct bootmem_info {
     32 	paddr_t bmi_start;
     33 	paddr_t bmi_kernelstart;
     34 	paddr_t bmi_kernelend;
     35 	paddr_t bmi_end;
     36 	pv_addrqh_t bmi_freechunks;
     37 	pv_addrqh_t bmi_chunks;		/* sorted list of memory to be mapped */
     38 	pv_addr_t bmi_freeblocks[4];
     39 	/*
     40 	 * These need to be static for pmap's kernel_pt list.
     41 	 */
     42 	pv_addr_t bmi_vector_l2pt;
     43 	pv_addr_t bmi_io_l2pt;
     44 	pv_addr_t bmi_l2pts[32];	// for large memory disks.
     45 	u_int bmi_freepages;
     46 	u_int bmi_nfreeblocks;
     47 };
     48 
     49 extern struct bootmem_info bootmem_info;
     50 
     51 extern char *booted_kernel;
     52 
     53 extern volatile uint32_t arm_cpu_hatched;
     54 extern volatile uint32_t arm_cpu_mbox;
     55 extern u_int arm_cpu_max;
     56 
     57 /* misc prototypes used by the many arm machdeps */
     58 void cortex_pmc_ccnt_init(void);
     59 void cpu_hatch(struct cpu_info *, cpuid_t, void (*)(struct cpu_info *));
     60 void halt(void);
     61 void parse_mi_bootargs(char *);
     62 void data_abort_handler(trapframe_t *);
     63 void prefetch_abort_handler(trapframe_t *);
     64 void undefinedinstruction_bounce(trapframe_t *);
     65 void dumpsys(void);
     66 
     67 /*
     68  * note that we use void * as all the platforms have different ideas on what
     69  * the structure is
     70  */
     71 u_int initarm(void *);
     72 struct pmap_devmap;
     73 struct boot_physmem;
     74 void arm32_bootmem_init(paddr_t memstart, psize_t memsize, paddr_t kernelstart);
     75 void arm32_kernel_vm_init(vaddr_t kvm_base, vaddr_t vectors,
     76 	vaddr_t iovbase /* (can be zero) */,
     77 	const struct pmap_devmap *devmap, bool mapallmem_p);
     78 vaddr_t initarm_common(vaddr_t kvm_base, vsize_t kvm_size,
     79         const struct boot_physmem *bp, size_t nbp);
     80 
     81 
     82 /* from arm/arm32/intr.c */
     83 void dosoftints(void);
     84 void set_spl_masks(void);
     85 #ifdef DIAGNOSTIC
     86 void dump_spl_masks(void);
     87 #endif
     88 #endif
     89