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authorRalf Baechle <ralf@linux-mips.org>2014-05-23 16:29:44 +0200
committerRalf Baechle <ralf@linux-mips.org>2014-05-24 00:07:01 +0200
commitb633648c5ad3cfbda0b3daea50d2135d44899259 (patch)
tree6100185cae10f36a55e71c3b220fc79cfa14b7c0 /arch/mips/kernel/irq.c
parent8b2e62cc34feaaf1cac9440a93fb18ac0b1e81bc (diff)
MIPS: MT: Remove SMTC support
Nobody is maintaining SMTC anymore and there also seems to be no userbase. Which is a pity - the SMTC technology primarily developed by Kevin D. Kissell <kevink@paralogos.com> is an ingenious demonstration for the MT ASE's power and elegance. Based on Markos Chandras <Markos.Chandras@imgtec.com> patch https://patchwork.linux-mips.org/patch/6719/ which while very similar did no longer apply cleanly when I tried to merge it plus some additional post-SMTC cleanup - SMTC was a feature as tricky to remove as it was to merge once upon a time. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/kernel/irq.c')
-rw-r--r--arch/mips/kernel/irq.c17
1 files changed, 0 insertions, 17 deletions
diff --git a/arch/mips/kernel/irq.c b/arch/mips/kernel/irq.c
index d1fea7a054be..5024fa39b861 100644
--- a/arch/mips/kernel/irq.c
+++ b/arch/mips/kernel/irq.c
@@ -73,7 +73,6 @@ void free_irqno(unsigned int irq)
*/
void ack_bad_irq(unsigned int irq)
{
- smtc_im_ack_irq(irq);
printk("unexpected IRQ # %d\n", irq);
}
@@ -142,23 +141,7 @@ void __irq_entry do_IRQ(unsigned int irq)
{
irq_enter();
check_stack_overflow();
- if (!smtc_handle_on_other_cpu(irq))
- generic_handle_irq(irq);
- irq_exit();
-}
-
-#ifdef CONFIG_MIPS_MT_SMTC_IRQAFF
-/*
- * To avoid inefficient and in some cases pathological re-checking of
- * IRQ affinity, we have this variant that skips the affinity check.
- */
-
-void __irq_entry do_IRQ_no_affinity(unsigned int irq)
-{
- irq_enter();
- smtc_im_backstop(irq);
generic_handle_irq(irq);
irq_exit();
}
-#endif /* CONFIG_MIPS_MT_SMTC_IRQAFF */