These changes are the raw update to linux-4.4.6-rt14. Kernel sources

[kvmfornfv.git] / kernel / arch / arm / vfp / vfpmodule.c

diff --git a/kernel/arch/arm/vfp/vfpmodule.c b/kernel/arch/arm/vfp/vfpmodule.c
index f6e4d56..2a61e4b 100644 (file)
--- a/kernel/arch/arm/vfp/vfpmodule.c
+++ b/kernel/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)
 {