projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| c4617318 HC |
1 | /* |
| 2 | * This file is subject to the terms and conditions of the GNU General Public | |
| 3 | * License. See the file "COPYING" in the main directory of this archive | |
| 4 | * for more details. | |
| 5 | * | |
| 6 | * Copyright (C) 2005 Embedded Alley Solutions, Inc | |
| 7 | * Copyright (C) 2005 Ralf Baechle (ralf@linux-mips.org) | |
| 8 | * Copyright (C) 2009 Jiajie Chen (chenjiajie@cse.buaa.edu.cn) | |
| 9 | * Copyright (C) 2012 Huacai Chen (chenhc@lemote.com) | |
| 10 | */ | |
| 30ad29bb HC |
11 | #ifndef __ASM_MACH_LOONGSON64_KERNEL_ENTRY_H |
| 12 | #define __ASM_MACH_LOONGSON64_KERNEL_ENTRY_H | |
| c4617318 | 13 | |
| c824ad16 HC |
14 | #include <asm/cpu.h> |
| 15 | ||
| c4617318 HC |
16 | /* |
| 17 | * Override macros used in arch/mips/kernel/head.S. | |
| 18 | */ | |
| 19 | .macro kernel_entry_setup | |
| 20 | #ifdef CONFIG_CPU_LOONGSON3 | |
| 21 | .set push | |
| 22 | .set mips64 | |
| 23 | /* Set LPA on LOONGSON3 config3 */ | |
| 97ab1bb4 | 24 | mfc0 t0, CP0_CONFIG3 |
| c4617318 | 25 | or t0, (0x1 << 7) |
| 97ab1bb4 | 26 | mtc0 t0, CP0_CONFIG3 |
| c4617318 | 27 | /* Set ELPA on LOONGSON3 pagegrain */ |
| 97ab1bb4 | 28 | mfc0 t0, CP0_PAGEGRAIN |
| b2edcfc8 | 29 | or t0, (0x1 << 29) |
| 97ab1bb4 | 30 | mtc0 t0, CP0_PAGEGRAIN |
| 1e820da3 | 31 | /* Enable STFill Buffer */ |
| c824ad16 HC |
32 | mfc0 t0, CP0_PRID |
| 33 | andi t0, (PRID_IMP_MASK | PRID_REV_MASK) | |
| 34 | slti t0, (PRID_IMP_LOONGSON_64 | PRID_REV_LOONGSON3A_R2) | |
| 35 | bnez t0, 1f | |
| 97ab1bb4 | 36 | mfc0 t0, CP0_CONFIG6 |
| 1e820da3 | 37 | or t0, 0x100 |
| 97ab1bb4 | 38 | mtc0 t0, CP0_CONFIG6 |
| c824ad16 | 39 | 1: |
| c4617318 HC |
40 | _ehb |
| 41 | .set pop | |
| 42 | #endif | |
| 43 | .endm | |
| 44 | ||
| 45 | /* | |
| 46 | * Do SMP slave processor setup. | |
| 47 | */ | |
| 48 | .macro smp_slave_setup | |
| 49 | #ifdef CONFIG_CPU_LOONGSON3 | |
| 50 | .set push | |
| 51 | .set mips64 | |
| 52 | /* Set LPA on LOONGSON3 config3 */ | |
| 97ab1bb4 | 53 | mfc0 t0, CP0_CONFIG3 |
| c4617318 | 54 | or t0, (0x1 << 7) |
| 97ab1bb4 | 55 | mtc0 t0, CP0_CONFIG3 |
| c4617318 | 56 | /* Set ELPA on LOONGSON3 pagegrain */ |
| 97ab1bb4 | 57 | mfc0 t0, CP0_PAGEGRAIN |
| b2edcfc8 | 58 | or t0, (0x1 << 29) |
| 97ab1bb4 | 59 | mtc0 t0, CP0_PAGEGRAIN |
| 1e820da3 | 60 | /* Enable STFill Buffer */ |
| c824ad16 HC |
61 | mfc0 t0, CP0_PRID |
| 62 | andi t0, (PRID_IMP_MASK | PRID_REV_MASK) | |
| 63 | slti t0, (PRID_IMP_LOONGSON_64 | PRID_REV_LOONGSON3A_R2) | |
| 64 | bnez t0, 1f | |
| 97ab1bb4 | 65 | mfc0 t0, CP0_CONFIG6 |
| 1e820da3 | 66 | or t0, 0x100 |
| 97ab1bb4 | 67 | mtc0 t0, CP0_CONFIG6 |
| c824ad16 | 68 | 1: |
| c4617318 HC |
69 | _ehb |
| 70 | .set pop | |
| 71 | #endif | |
| 72 | .endm | |
| 73 | ||
| 30ad29bb | 74 | #endif /* __ASM_MACH_LOONGSON64_KERNEL_ENTRY_H */ |