linux/arch/arm/vfp
Will Deacon f27d6e1723 ARM: 7729/1: vfp: ensure VFP_arch is non-zero when VFP is not supported
Commit d3f79584a8 ("ARM: cleanup undefined instruction entry code")
improved the register scheduling when handling undefined instructions.
A side effect of this is that r5 is now used as a temporary, whilst the
VFP probing code relies on r5 containing a non-zero value when VFP is
not supported.

This patch fixes the VFP detection code so that we don't rely on the
contents of r5. Without this patch, Linux dies loudly on CPUs without
VFP support.

Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2013-05-22 22:01:37 +01:00
..
entry.S ARM: 7729/1: vfp: ensure VFP_arch is non-zero when VFP is not supported 2013-05-22 22:01:37 +01:00
Makefile ARM: vfp: use -mfloat-abi=soft to build vfp 2011-10-01 21:08:55 +02:00
vfp.h [ARM] 5387/1: Add ptrace VFP support on ARM 2009-02-12 10:59:43 +00:00
vfpdouble.c [ARM] vfp: fix fuitod/fsitod instructions 2008-01-10 17:07:08 +00:00
vfphw.S ARM: Fix broken commit 0cc41e4a21 corrupting kernel messages 2013-03-01 21:09:59 +00:00
vfpinstr.h [ARM] 4583/1: ARMv7: Add VFPv3 support 2008-01-26 14:41:28 +00:00
vfpmodule.c ARM: VFP: fix emulation of second VFP instruction 2013-02-25 16:09:12 +00:00
vfpsingle.c