| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame^] | 1 | #ifndef __ASM_SH64_PLATFORM_H |
| 2 | #define __ASM_SH64_PLATFORM_H |
| 3 | |
| 4 | /* |
| 5 | * This file is subject to the terms and conditions of the GNU General Public |
| 6 | * License. See the file "COPYING" in the main directory of this archive |
| 7 | * for more details. |
| 8 | * |
| 9 | * include/asm-sh64/platform.h |
| 10 | * |
| 11 | * Copyright (C) 2000, 2001 Paolo Alberelli |
| 12 | * |
| 13 | * benedict.gaster@superh.com: 3rd May 2002 |
| 14 | * Added support for ramdisk, removing statically linked romfs at the same time. |
| 15 | */ |
| 16 | |
| 17 | #include <linux/ioport.h> |
| 18 | #include <asm/irq.h> |
| 19 | |
| 20 | |
| 21 | /* |
| 22 | * Platform definition structure. |
| 23 | */ |
| 24 | struct sh64_platform { |
| 25 | unsigned int readonly_rootfs; |
| 26 | unsigned int ramdisk_flags; |
| 27 | unsigned int initial_root_dev; |
| 28 | unsigned int loader_type; |
| 29 | unsigned int initrd_start; |
| 30 | unsigned int initrd_size; |
| 31 | unsigned int fpu_flags; |
| 32 | unsigned int io_res_count; |
| 33 | unsigned int kram_res_count; |
| 34 | unsigned int xram_res_count; |
| 35 | unsigned int rom_res_count; |
| 36 | struct resource *io_res_p; |
| 37 | struct resource *kram_res_p; |
| 38 | struct resource *xram_res_p; |
| 39 | struct resource *rom_res_p; |
| 40 | }; |
| 41 | |
| 42 | extern struct sh64_platform platform_parms; |
| 43 | |
| 44 | extern unsigned long long memory_start, memory_end; |
| 45 | |
| 46 | extern unsigned long long fpu_in_use; |
| 47 | |
| 48 | extern int platform_int_priority[NR_INTC_IRQS]; |
| 49 | |
| 50 | #define FPU_FLAGS (platform_parms.fpu_flags) |
| 51 | #define STANDARD_IO_RESOURCES (platform_parms.io_res_count) |
| 52 | #define STANDARD_KRAM_RESOURCES (platform_parms.kram_res_count) |
| 53 | #define STANDARD_XRAM_RESOURCES (platform_parms.xram_res_count) |
| 54 | #define STANDARD_ROM_RESOURCES (platform_parms.rom_res_count) |
| 55 | |
| 56 | /* |
| 57 | * Kernel Memory description, Respectively: |
| 58 | * code = last but one memory descriptor |
| 59 | * data = last memory descriptor |
| 60 | */ |
| 61 | #define code_resource (platform_parms.kram_res_p[STANDARD_KRAM_RESOURCES - 2]) |
| 62 | #define data_resource (platform_parms.kram_res_p[STANDARD_KRAM_RESOURCES - 1]) |
| 63 | |
| 64 | /* Be prepared to 64-bit sign extensions */ |
| 65 | #define PFN_UP(x) ((((x) + PAGE_SIZE-1) >> PAGE_SHIFT) & 0x000fffff) |
| 66 | #define PFN_DOWN(x) (((x) >> PAGE_SHIFT) & 0x000fffff) |
| 67 | #define PFN_PHYS(x) ((x) << PAGE_SHIFT) |
| 68 | |
| 69 | #endif /* __ASM_SH64_PLATFORM_H */ |