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machdep.h revision 1.19 
      1 /* $NetBSD: machdep.h,v 1.19 2015/11/11 12:37:13 jmcneill 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 void (*cpu_powerdown_address)(void);
     29 
     30 extern u_int data_abort_handler_address;
     31 extern u_int prefetch_abort_handler_address;
     32 // extern u_int undefined_handler_address;
     33 #define	undefined_handler_address (curcpu()->ci_undefsave[2])
     34 
     35 struct bootmem_info {
     36 	paddr_t bmi_start;
     37 	paddr_t bmi_kernelstart;
     38 	paddr_t bmi_kernelend;
     39 	paddr_t bmi_end;
     40 	pv_addrqh_t bmi_freechunks;
     41 	pv_addrqh_t bmi_chunks;		/* sorted list of memory to be mapped */
     42 	pv_addr_t bmi_freeblocks[4];
     43 	/*
     44 	 * These need to be static for pmap's kernel_pt list.
     45 	 */
     46 	pv_addr_t bmi_vector_l2pt;
     47 	pv_addr_t bmi_io_l2pt;
     48 	pv_addr_t bmi_l2pts[32];	// for large memory disks.
     49 	u_int bmi_freepages;
     50 	u_int bmi_nfreeblocks;
     51 };
     52 
     53 extern struct bootmem_info bootmem_info;
     54 
     55 extern char *booted_kernel;
     56 
     57 extern volatile uint32_t arm_cpu_hatched;
     58 extern volatile uint32_t arm_cpu_mbox;
     59 extern u_int arm_cpu_max;
     60 
     61 /* misc prototypes used by the many arm machdeps */
     62 void cortex_pmc_ccnt_init(void);
     63 void cpu_hatch(struct cpu_info *, cpuid_t, void (*)(struct cpu_info *));
     64 void halt(void);
     65 void parse_mi_bootargs(char *);
     66 void data_abort_handler(trapframe_t *);
     67 void prefetch_abort_handler(trapframe_t *);
     68 void undefinedinstruction_bounce(trapframe_t *);
     69 void dumpsys(void);
     70 
     71 /*
     72  * note that we use void *as all the platforms have different ideas on what
     73  * the structure is
     74  */
     75 u_int initarm(void *);
     76 struct pmap_devmap;
     77 struct boot_physmem;
     78 void arm32_bootmem_init(paddr_t memstart, psize_t memsize, paddr_t kernelstart);
     79 void arm32_kernel_vm_init(vaddr_t kvm_base, vaddr_t vectors,
     80 	vaddr_t iovbase /* (can be zero) */,
     81 	const struct pmap_devmap *devmap, bool mapallmem_p);
     82 vaddr_t initarm_common(vaddr_t kvm_base, vsize_t kvm_size,
     83         const struct boot_physmem *bp, size_t nbp);
     84 
     85 
     86 /* from arm/arm32/intr.c */
     87 void dosoftints(void);
     88 void set_spl_masks(void);
     89 #ifdef DIAGNOSTIC
     90 void dump_spl_masks(void);
     91 #endif
     92 #endif
     93