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authorRalf Baechle <ralf@linux-mips.org>2006-04-05 09:45:47 +0100
committerRalf Baechle <ralf@linux-mips.org>2006-04-19 04:14:28 +0200
commitf088fc84f94c1a36943e28ad704a9a740a35f877 (patch)
tree309add2d3fe666920a681985c36d55f731df9922 /arch/mips/kernel/process.c
parent41c594ab65fc89573af296d192aa5235d09717ab (diff)
downloadop-kernel-dev-f088fc84f94c1a36943e28ad704a9a740a35f877.zip
op-kernel-dev-f088fc84f94c1a36943e28ad704a9a740a35f877.tar.gz
[MIPS] FPU affinity for MT ASE.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/kernel/process.c')
-rw-r--r--arch/mips/kernel/process.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/arch/mips/kernel/process.c b/arch/mips/kernel/process.c
index 8b393df..199a06e 100644
--- a/arch/mips/kernel/process.c
+++ b/arch/mips/kernel/process.c
@@ -185,6 +185,17 @@ int copy_thread(int nr, unsigned long clone_flags, unsigned long usp,
childregs->cp0_status &= ~(ST0_CU2|ST0_CU1);
clear_tsk_thread_flag(p, TIF_USEDFPU);
+#ifdef CONFIG_MIPS_MT_FPAFF
+ /*
+ * FPU affinity support is cleaner if we track the
+ * user-visible CPU affinity from the very beginning.
+ * The generic cpus_allowed mask will already have
+ * been copied from the parent before copy_thread
+ * is invoked.
+ */
+ p->thread.user_cpus_allowed = p->cpus_allowed;
+#endif /* CONFIG_MIPS_MT_FPAFF */
+
if (clone_flags & CLONE_SETTLS)
ti->tp_value = regs->regs[7];
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