kpriv/linux-hardened
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

[ARM] 4629/1: Fix VFP emulation code to clear all exception flags of FPEXC

Browse source 
All exception flags of the FPEXC register must be cleared before
returning from exception code to user code, including FP2V and OFC.

Signed-off-by: Takashi Ohmasa <ohmasa.takashi@jp.panasonic.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Takashi Ohmasa 2007-10-19 13:58:51 +01:00 committed by Russell King
parent 0825c67259
commit 67f18f3458
1 changed files with 1 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
arch/arm/vfp/vfpmodule.c
View file

@ -229,7 +229,7 @@ void VFP9_bounce(u32 trigger, u32 fpexc, struct pt_regs *regs)
/*
* Enable access to the VFP so we can handle the bounce.
*/
fmxr(FPEXC, fpexc & ~(FPEXC_EX|FPEXC_INV|FPEXC_UFC|FPEXC_IOC));
fmxr(FPEXC, fpexc & ~(FPEXC_EX|FPEXC_FPV2|FPEXC_INV|FPEXC_UFC|FPEXC_OFC|FPEXC_IOC));
orig_fpscr = fpscr = fmrx(FPSCR);