diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/include/asm/vfp.h | 4 | ||||
| -rw-r--r-- | arch/arm/vfp/vfpmodule.c | 13 |
2 files changed, 17 insertions, 0 deletions
diff --git a/arch/arm/include/asm/vfp.h b/arch/arm/include/asm/vfp.h index 03f9ca3cdfa4..22e414056a8c 100644 --- a/arch/arm/include/asm/vfp.h +++ b/arch/arm/include/asm/vfp.h @@ -91,4 +91,8 @@ #define VFPOPDESC_UNUSED_MASK (0xFF << VFPOPDESC_UNUSED_BIT) #define VFPOPDESC_OPDESC_MASK (~(VFPOPDESC_LENGTH_MASK | VFPOPDESC_UNUSED_MASK)) +#ifndef __ASSEMBLY__ +void vfp_disable(void); +#endif + #endif /* __ASM_VFP_H */ diff --git a/arch/arm/vfp/vfpmodule.c b/arch/arm/vfp/vfpmodule.c index f6e4d56eda00..2a61e4b04600 100644 --- a/arch/arm/vfp/vfpmodule.c +++ b/arch/arm/vfp/vfpmodule.c @@ -445,6 +445,19 @@ static void vfp_enable(void *unused) set_copro_access(access | CPACC_FULL(10) | CPACC_FULL(11)); } +/* Called by platforms on which we want to disable VFP because it may not be + * present on all CPUs within a SMP complex. Needs to be called prior to + * vfp_init(). + */ +void vfp_disable(void) +{ + if (VFP_arch) { + pr_debug("%s: should be called prior to vfp_init\n", __func__); + return; + } + VFP_arch = 1; +} + #ifdef CONFIG_CPU_PM static int vfp_pm_suspend(void) { |