5698bf8c86
a new physmem.c file. The new code provides helper routines that can be used by legacy SoCs and newer FDT-based systems. There are routines to add one or more regions of physically contiguous ram, and exclude one or more physically contiguous regions of ram. Ram can be excluded from crash dumps, from being given over to the vm system for allocation management, or both. After all the included and excluded regions have been added, arm_physmem_init_kernel_globals() processes the regions into the global dump_avail and phys_avail arrays and realmem and physmem variables that communicate memory configuration to the rest of the kernel. Convert all existing SoCs to use the new helper code.
75 lines
2.7 KiB
C
75 lines
2.7 KiB
C
/* $NetBSD: machdep.h,v 1.7 2002/02/21 02:52:21 thorpej Exp $ */
|
|
/* $FreeBSD$ */
|
|
|
|
#ifndef _MACHDEP_BOOT_MACHDEP_H_
|
|
#define _MACHDEP_BOOT_MACHDEP_H_
|
|
|
|
/* Structs that need to be initialised by initarm */
|
|
struct pv_addr;
|
|
extern struct pv_addr irqstack;
|
|
extern struct pv_addr undstack;
|
|
extern struct pv_addr abtstack;
|
|
|
|
/* Define various stack sizes in pages */
|
|
#define IRQ_STACK_SIZE 1
|
|
#define ABT_STACK_SIZE 1
|
|
#define UND_STACK_SIZE 1
|
|
|
|
/* misc prototypes used by the many arm machdeps */
|
|
struct trapframe;
|
|
void arm_lock_cache_line(vm_offset_t);
|
|
void init_proc0(vm_offset_t kstack);
|
|
void halt(void);
|
|
void data_abort_handler(struct trapframe *);
|
|
void prefetch_abort_handler(struct trapframe *);
|
|
void set_stackptrs(int cpu);
|
|
void undefinedinstruction_bounce(struct trapframe *);
|
|
|
|
/* Early boot related helper functions */
|
|
struct arm_boot_params;
|
|
vm_offset_t default_parse_boot_param(struct arm_boot_params *abp);
|
|
vm_offset_t freebsd_parse_boot_param(struct arm_boot_params *abp);
|
|
vm_offset_t linux_parse_boot_param(struct arm_boot_params *abp);
|
|
vm_offset_t fake_preload_metadata(struct arm_boot_params *abp);
|
|
vm_offset_t parse_boot_param(struct arm_boot_params *abp);
|
|
|
|
/*
|
|
* Initialization functions called by the common initarm() function in
|
|
* arm/machdep.c (but not necessarily from the custom initarm() functions of
|
|
* older code).
|
|
*
|
|
* - initarm_early_init() is called very early, after parsing the boot params
|
|
* and after physical memory has been located and sized.
|
|
*
|
|
* - initarm_devmap_init() is called as one of the last steps of early virtual
|
|
* memory initialization, shortly before the new page tables are installed.
|
|
*
|
|
* - initarm_lastaddr() is called after initarm_devmap_init(), and must return
|
|
* the address of the first byte of unusable KVA space. This allows a
|
|
* platform to carve out of the top of the KVA space whatever reserves it
|
|
* needs for things like static device mapping, and this is called to get the
|
|
* value before calling pmap_bootstrap() which uses the value to size the
|
|
* available KVA.
|
|
*
|
|
* - initarm_gpio_init() is called after the static device mappings are
|
|
* established and just before cninit(). The intention is that the routine
|
|
* can do any hardware setup (such as gpio or pinmux) necessary to make the
|
|
* console functional.
|
|
*
|
|
* - initarm_late_init() is called just after cninit(). This is the first of
|
|
* the init routines that can use printf() and expect the output to appear on
|
|
* a standard console.
|
|
*
|
|
*/
|
|
void initarm_early_init(void);
|
|
int initarm_devmap_init(void);
|
|
vm_offset_t initarm_lastaddr(void);
|
|
void initarm_gpio_init(void);
|
|
void initarm_late_init(void);
|
|
|
|
/* Board-specific attributes */
|
|
void board_set_serial(uint64_t);
|
|
void board_set_revision(uint32_t);
|
|
|
|
#endif /* !_MACHINE_MACHDEP_H_ */
|