diff options
Diffstat (limited to 'arch/mips/include/asm/mach-loongson64/kernel-entry-init.h')
| -rw-r--r-- | arch/mips/include/asm/mach-loongson64/kernel-entry-init.h | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/arch/mips/include/asm/mach-loongson64/kernel-entry-init.h b/arch/mips/include/asm/mach-loongson64/kernel-entry-init.h index 312739117bb0..cbac603ced19 100644 --- a/arch/mips/include/asm/mach-loongson64/kernel-entry-init.h +++ b/arch/mips/include/asm/mach-loongson64/kernel-entry-init.h @@ -11,6 +11,8 @@ #ifndef __ASM_MACH_LOONGSON64_KERNEL_ENTRY_H #define __ASM_MACH_LOONGSON64_KERNEL_ENTRY_H +#include <asm/cpu.h> + /* * Override macros used in arch/mips/kernel/head.S. */ @@ -26,12 +28,15 @@ mfc0 t0, CP0_PAGEGRAIN or t0, (0x1 << 29) mtc0 t0, CP0_PAGEGRAIN -#ifdef CONFIG_LOONGSON3_ENHANCEMENT /* Enable STFill Buffer */ + mfc0 t0, CP0_PRID + andi t0, (PRID_IMP_MASK | PRID_REV_MASK) + slti t0, (PRID_IMP_LOONGSON_64 | PRID_REV_LOONGSON3A_R2) + bnez t0, 1f mfc0 t0, CP0_CONFIG6 or t0, 0x100 mtc0 t0, CP0_CONFIG6 -#endif +1: _ehb .set pop #endif @@ -52,12 +57,15 @@ mfc0 t0, CP0_PAGEGRAIN or t0, (0x1 << 29) mtc0 t0, CP0_PAGEGRAIN -#ifdef CONFIG_LOONGSON3_ENHANCEMENT /* Enable STFill Buffer */ + mfc0 t0, CP0_PRID + andi t0, (PRID_IMP_MASK | PRID_REV_MASK) + slti t0, (PRID_IMP_LOONGSON_64 | PRID_REV_LOONGSON3A_R2) + bnez t0, 1f mfc0 t0, CP0_CONFIG6 or t0, 0x100 mtc0 t0, CP0_CONFIG6 -#endif +1: _ehb .set pop #endif |