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Diffstat (limited to 'arch/powerpc/sysdev/xive/common.c')
-rw-r--r--arch/powerpc/sysdev/xive/common.c32
1 files changed, 5 insertions, 27 deletions
diff --git a/arch/powerpc/sysdev/xive/common.c b/arch/powerpc/sysdev/xive/common.c
index 3459015092fa..959a2a62f233 100644
--- a/arch/powerpc/sysdev/xive/common.c
+++ b/arch/powerpc/sysdev/xive/common.c
@@ -266,7 +266,7 @@ static unsigned int xive_get_irq(void)
* of pending priorities. This will also have the effect of
* updating the CPPR to the most favored pending interrupts.
*
- * In the future, if we have a way to differenciate a first
+ * In the future, if we have a way to differentiate a first
* entry (on HW interrupt) from a replay triggered by EOI,
* we could skip this on replays unless we soft-mask tells us
* that a new HW interrupt occurred.
@@ -319,7 +319,7 @@ void xive_do_source_eoi(u32 hw_irq, struct xive_irq_data *xd)
* The FW told us to call it. This happens for some
* interrupt sources that need additional HW whacking
* beyond the ESB manipulation. For example LPC interrupts
- * on P9 DD1.0 need a latch to be clared in the LPC bridge
+ * on P9 DD1.0 needed a latch to be clared in the LPC bridge
* itself. The Firmware will take care of it.
*/
if (WARN_ON_ONCE(!xive_ops->eoi))
@@ -337,9 +337,9 @@ void xive_do_source_eoi(u32 hw_irq, struct xive_irq_data *xd)
* This allows us to then do a re-trigger if Q was set
* rather than synthesizing an interrupt in software
*
- * For LSIs, using the HW EOI cycle works around a problem
- * on P9 DD1 PHBs where the other ESB accesses don't work
- * properly.
+ * For LSIs the HW EOI cycle is used rather than PQ bits,
+ * as they are automatically re-triggred in HW when still
+ * pending.
*/
if (xd->flags & XIVE_IRQ_FLAG_LSI)
xive_esb_read(xd, XIVE_ESB_LOAD_EOI);
@@ -1408,28 +1408,6 @@ void xive_teardown_cpu(void)
xive_cleanup_cpu_queues(cpu, xc);
}
-void xive_kexec_teardown_cpu(int secondary)
-{
- struct xive_cpu *xc = __this_cpu_read(xive_cpu);
- unsigned int cpu = smp_processor_id();
-
- /* Set CPPR to 0 to disable flow of interrupts */
- xc->cppr = 0;
- out_8(xive_tima + xive_tima_offset + TM_CPPR, 0);
-
- /* Backend cleanup if any */
- if (xive_ops->teardown_cpu)
- xive_ops->teardown_cpu(cpu, xc);
-
-#ifdef CONFIG_SMP
- /* Get rid of IPI */
- xive_cleanup_cpu_ipi(cpu, xc);
-#endif
-
- /* Disable and free the queues */
- xive_cleanup_cpu_queues(cpu, xc);
-}
-
void xive_shutdown(void)
{
xive_ops->shutdown();