| #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 */ |
