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authorPaul Mackerras <paulus@samba.org>2005-05-01 08:58:40 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-05-01 08:58:40 -0700
commit443a848cd30eb5bb5c1038e6371d83404775dcfc (patch)
treef61d62eebf19498395257a7cddee828c4edfa876 /arch/ppc/kernel/head_44x.S
parentf1c55dea0bb2df94aa2b01b0871cb02f2e206676 (diff)
downloadblackbird-op-linux-443a848cd30eb5bb5c1038e6371d83404775dcfc.tar.gz
blackbird-op-linux-443a848cd30eb5bb5c1038e6371d83404775dcfc.zip
[PATCH] ppc32: refactor FPU exception handling
Moved common FPU exception handling code out of head.S so it can be used by several of the sub-architectures that might of a full PowerPC FPU. Also, uses new CONFIG_PPC_FPU define to fix alignment exception handling for floating point load/store instructions to only occur if we have a hardware FPU. Signed-off-by: Jason McMullan <jason.mcmullan@timesys.com> Signed-off-by: Kumar Gala <kumar.gala@freescale.com> Signed-off-by: Paul Mackerras <paulus@samba.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch/ppc/kernel/head_44x.S')
-rw-r--r--arch/ppc/kernel/head_44x.S6
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/ppc/kernel/head_44x.S b/arch/ppc/kernel/head_44x.S
index 9ed8165a3d6c..9b6a8e513657 100644
--- a/arch/ppc/kernel/head_44x.S
+++ b/arch/ppc/kernel/head_44x.S
@@ -426,7 +426,11 @@ interrupt_base:
PROGRAM_EXCEPTION
/* Floating Point Unavailable Interrupt */
+#ifdef CONFIG_PPC_FPU
+ FP_UNAVAILABLE_EXCEPTION
+#else
EXCEPTION(0x2010, FloatingPointUnavailable, UnknownException, EXC_XFER_EE)
+#endif
/* System Call Interrupt */
START_EXCEPTION(SystemCall)
@@ -686,8 +690,10 @@ _GLOBAL(giveup_altivec)
*
* The 44x core does not have an FPU.
*/
+#ifndef CONFIG_PPC_FPU
_GLOBAL(giveup_fpu)
blr
+#endif
/*
* extern void abort(void)
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