From: Hong H. Pham <hong.pham@windriver.com>
Date: Thu, 4 Dec 2008 17:12:57 +0000 (-0800)
Subject: sparc64: Sync FPU state in VIS emulation handler.
X-Git-Tag: MMI-PSA29.97-13-9~30513^2~1
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=410d2c8187ed969238ba98008c1d57307a56cfd8;p=GitHub%2FMotorolaMobilityLLC%2Fkernel-slsi.git

sparc64: Sync FPU state in VIS emulation handler.

Copy the FPU state to the task's thread_info->fpregs for the VIS emulation
functions to access.

Signed-off-by: Hong H. Pham <hong.pham@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/arch/sparc64/kernel/visemul.c b/arch/sparc64/kernel/visemul.c
index 69f8a35c6bcd..b956fd71c131 100644
--- a/arch/sparc64/kernel/visemul.c
+++ b/arch/sparc64/kernel/visemul.c
@@ -807,6 +807,8 @@ int vis_emul(struct pt_regs *regs, unsigned int insn)
 	if (get_user(insn, (u32 __user *) pc))
 		return -EFAULT;
 
+	save_and_clear_fpu();
+
 	opf = (insn & VIS_OPF_MASK) >> VIS_OPF_SHIFT;
 	switch (opf) {
 	default: