mirror of https://gitee.com/openkylin/linux.git
70 lines
2.0 KiB
C
70 lines
2.0 KiB
C
|
#ifndef __ASM_SH64_PLATFORM_H
|
||
|
|
#define __ASM_SH64_PLATFORM_H
|
||
|
|
|
||
|
|
/*
|
||
|
|
* This file is subject to the terms and conditions of the GNU General Public
|
||
|
|
* License. See the file "COPYING" in the main directory of this archive
|
||
|
|
* for more details.
|
||
|
|
*
|
||
|
|
* include/asm-sh64/platform.h
|
||
|
|
*
|
||
|
|
* Copyright (C) 2000, 2001 Paolo Alberelli
|
||
|
|
*
|
||
|
|
* benedict.gaster@superh.com: 3rd May 2002
|
||
|
|
* Added support for ramdisk, removing statically linked romfs at the same time.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <linux/ioport.h>
|
||
|
|
#include <asm/irq.h>
|
||
|
|
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Platform definition structure.
|
||
|
|
*/
|
||
|
|
struct sh64_platform {
|
||
|
|
unsigned int readonly_rootfs;
|
||
|
|
unsigned int ramdisk_flags;
|
||
|
|
unsigned int initial_root_dev;
|
||
|
|
unsigned int loader_type;
|
||
|
|
unsigned int initrd_start;
|
||
|
|
unsigned int initrd_size;
|
||
|
|
unsigned int fpu_flags;
|
||
|
|
unsigned int io_res_count;
|
||
|
|
unsigned int kram_res_count;
|
||
|
|
unsigned int xram_res_count;
|
||
|
|
unsigned int rom_res_count;
|
||
|
|
struct resource *io_res_p;
|
||
|
|
struct resource *kram_res_p;
|
||
|
|
struct resource *xram_res_p;
|
||
|
|
struct resource *rom_res_p;
|
||
|
|
};
|
||
|
|
|
||
|
|
extern struct sh64_platform platform_parms;
|
||
|
|
|
||
|
|
extern unsigned long long memory_start, memory_end;
|
||
|
|
|
||
|
|
extern unsigned long long fpu_in_use;
|
||
|
|
|
||
|
|
extern int platform_int_priority[NR_INTC_IRQS];
|
||
|
|
|
||
|
|
#define FPU_FLAGS (platform_parms.fpu_flags)
|
||
|
|
#define STANDARD_IO_RESOURCES (platform_parms.io_res_count)
|
||
|
|
#define STANDARD_KRAM_RESOURCES (platform_parms.kram_res_count)
|
||
|
|
#define STANDARD_XRAM_RESOURCES (platform_parms.xram_res_count)
|
||
|
|
#define STANDARD_ROM_RESOURCES (platform_parms.rom_res_count)
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Kernel Memory description, Respectively:
|
||
|
|
* code = last but one memory descriptor
|
||
|
|
* data = last memory descriptor
|
||
|
|
*/
|
||
|
|
#define code_resource (platform_parms.kram_res_p[STANDARD_KRAM_RESOURCES - 2])
|
||
|
|
#define data_resource (platform_parms.kram_res_p[STANDARD_KRAM_RESOURCES - 1])
|
||
|
|
|
||
|
|
/* Be prepared to 64-bit sign extensions */
|
||
|
|
#define PFN_UP(x) ((((x) + PAGE_SIZE-1) >> PAGE_SHIFT) & 0x000fffff)
|
||
|
|
#define PFN_DOWN(x) (((x) >> PAGE_SHIFT) & 0x000fffff)
|
||
|
|
#define PFN_PHYS(x) ((x) << PAGE_SHIFT)
|
||
|
|
|
||
|
|
#endif /* __ASM_SH64_PLATFORM_H */
|