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machdep.h revision 1.17 
      1 /* $NetBSD: machdep.h,v 1.17 2012/10/20 14:42:20 matt Exp $ */
      2 
      3 #ifndef _ARM32_BOOT_MACHDEP_H_
      4 #define _ARM32_BOOT_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 #ifdef IPKDB
     15 #define UND_STACK_SIZE	2
     16 #else
     17 #define UND_STACK_SIZE	1
     18 #endif
     19 #endif
     20 #ifndef FIQ_STACK_SIZE
     21 #define FIQ_STACK_SIZE	1
     22 #endif
     23 
     24 
     25 extern void (*cpu_reset_address)(void);
     26 extern paddr_t cpu_reset_address_paddr;
     27 
     28 extern u_int data_abort_handler_address;
     29 extern u_int prefetch_abort_handler_address;
     30 // extern u_int undefined_handler_address;
     31 #define	undefined_handler_address (curcpu()->ci_undefsave[2])
     32 
     33 struct bootmem_info {
     34 	paddr_t bmi_start;
     35 	paddr_t bmi_kernelstart;
     36 	paddr_t bmi_kernelend;
     37 	paddr_t bmi_end;
     38 	pv_addrqh_t bmi_freechunks;
     39 	pv_addrqh_t bmi_chunks;		/* sorted list of memory to be mapped */
     40 	pv_addr_t bmi_freeblocks[4];
     41 	/*
     42 	 * These need to be static for pmap's kernel_pt list.
     43 	 */
     44 	pv_addr_t bmi_vector_l2pt;
     45 	pv_addr_t bmi_io_l2pt;
     46 	pv_addr_t bmi_l2pts[32];	// for large memory disks.
     47 	u_int bmi_freepages;
     48 	u_int bmi_nfreeblocks;
     49 };
     50 
     51 extern struct bootmem_info bootmem_info;
     52 
     53 extern char *booted_kernel;
     54 
     55 extern volatile uint32_t arm_cpu_hatched;
     56 extern uint32_t arm_cpu_mbox;
     57 extern u_int arm_cpu_max;
     58 
     59 /* misc prototypes used by the many arm machdeps */
     60 void cortex_pmc_ccnt_init(void);
     61 void cpu_hatch(struct cpu_info *, cpuid_t, 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 u_int initarm(void *);
     74 struct pmap_devmap;
     75 struct boot_physmem;
     76 void arm32_bootmem_init(paddr_t memstart, psize_t memsize, paddr_t kernelstart);
     77 void arm32_kernel_vm_init(vaddr_t kvm_base, vaddr_t vectors,
     78 	vaddr_t iovbase /* (can be zero) */,
     79 	const struct pmap_devmap *devmap, bool mapallmem_p);
     80 vaddr_t initarm_common(vaddr_t kvm_base, vsize_t kvm_size,
     81         const struct boot_physmem *bp, size_t nbp);
     82 
     83 
     84 /* from arm/arm32/intr.c */
     85 void dosoftints(void);
     86 void set_spl_masks(void);
     87 #ifdef DIAGNOSTIC
     88 void dump_spl_masks(void);
     89 #endif
     90 #endif
     91