From 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 Mon Sep 17 00:00:00 2001 From: Yunhong Jiang Date: Tue, 4 Aug 2015 12:17:53 -0700 Subject: Add the rt linux 4.1.3-rt3 as base Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang --- kernel/arch/arm/nwfpe/fpa11.inl | 51 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 51 insertions(+) create mode 100644 kernel/arch/arm/nwfpe/fpa11.inl (limited to 'kernel/arch/arm/nwfpe/fpa11.inl') diff --git a/kernel/arch/arm/nwfpe/fpa11.inl b/kernel/arch/arm/nwfpe/fpa11.inl new file mode 100644 index 000000000..ab8d68262 --- /dev/null +++ b/kernel/arch/arm/nwfpe/fpa11.inl @@ -0,0 +1,51 @@ +/* + NetWinder Floating Point Emulator + (c) Rebel.COM, 1998,1999 + + Direct questions, comments to Scott Bambrough + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. +*/ + +#include "fpa11.h" + +/* Read and write floating point status register */ +static inline unsigned int readFPSR(void) +{ + FPA11 *fpa11 = GET_FPA11(); + return (fpa11->fpsr); +} + +static inline void writeFPSR(FPSR reg) +{ + FPA11 *fpa11 = GET_FPA11(); + /* the sysid byte in the status register is readonly */ + fpa11->fpsr = (fpa11->fpsr & MASK_SYSID) | (reg & ~MASK_SYSID); +} + +/* Read and write floating point control register */ +static inline FPCR readFPCR(void) +{ + FPA11 *fpa11 = GET_FPA11(); + /* clear SB, AB and DA bits before returning FPCR */ + return (fpa11->fpcr & ~MASK_RFC); +} + +static inline void writeFPCR(FPCR reg) +{ + FPA11 *fpa11 = GET_FPA11(); + fpa11->fpcr &= ~MASK_WFC; /* clear SB, AB and DA bits */ + fpa11->fpcr |= (reg & MASK_WFC); /* write SB, AB and DA bits */ +} -- cgit 1.2.3-korg