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authorCatalin Marinas <catalin.marinas@arm.com>2007-01-24 18:47:08 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2007-01-25 16:35:29 +0000
commitc6428464894889e110418928e6b37dc2eb4cee56 (patch)
tree292410b297ef2332715aabd7a87ef9fe0c03de4a /include/asm-arm
parent412489af76b5c0e4029d4406d93554c22a88fc73 (diff)
downloadblackbird-op-linux-c6428464894889e110418928e6b37dc2eb4cee56.tar.gz
blackbird-op-linux-c6428464894889e110418928e6b37dc2eb4cee56.zip
[ARM] 4111/1: Allow VFP to work with thread migration on SMP
The current lazy saving of the VFP registers is no longer possible with thread migration on SMP. This patch implements a per-CPU vfp-state pointer and the saving of the VFP registers at every context switch. The registers restoring is still performed in a lazy way. Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'include/asm-arm')
-rw-r--r--include/asm-arm/fpstate.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/asm-arm/fpstate.h b/include/asm-arm/fpstate.h
index 6af4e6bd1290..f31cda5a55ee 100644
--- a/include/asm-arm/fpstate.h
+++ b/include/asm-arm/fpstate.h
@@ -35,6 +35,9 @@ struct vfp_hard_struct {
*/
__u32 fpinst;
__u32 fpinst2;
+#ifdef CONFIG_SMP
+ __u32 cpu;
+#endif
};
union vfp_state {
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