These changes are the raw update to linux-4.4.6-rt14. Kernel sources

are taken from kernel.org, and rt patch from the rt wiki download page.

During the rebasing, the following patch collided:

Force tick interrupt and get rid of softirq magic(I70131fb85).

Collisions have been removed because its logic was found on the
source already.

Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769
Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>

4 files changed, 38 insertions, 43 deletions

diff --git a/kernel/arch/m68k/coldfire/intc-5272.c b/kernel/arch/m68k/coldfire/intc-5272.c
index d1e2fbad3..b0a19e207 100644
--- a/kernel/arch/m68k/coldfire/intc-5272.c
+++ b/kernel/arch/m68k/coldfire/intc-5272.c
@@ -143,10 +143,10 @@ static int intc_irq_set_type(struct irq_data *d, unsigned int type)
  * We need to be careful with the masking/acking due to the side effects
  * of masking an interrupt.
  */
-static void intc_external_irq(unsigned int irq, struct irq_desc *desc)
+static void intc_external_irq(struct irq_desc *desc)
 {
 	irq_desc_get_chip(desc)->irq_ack(&desc->irq_data);
-	handle_simple_irq(irq, desc);
+	handle_simple_irq(desc);
 }
 
 static struct irq_chip intc_irq_chip = {
diff --git a/kernel/arch/m68k/coldfire/m5272.c b/kernel/arch/m68k/coldfire/m5272.c
index b15219ed2..c525e4c08 100644
--- a/kernel/arch/m68k/coldfire/m5272.c
+++ b/kernel/arch/m68k/coldfire/m5272.c
@@ -126,7 +126,7 @@ static struct fixed_phy_status nettel_fixed_phy_status __initdata = {
 static int __init init_BSP(void)
 {
 	m5272_uarts_init();
-	fixed_phy_add(PHY_POLL, 0, &nettel_fixed_phy_status);
+	fixed_phy_add(PHY_POLL, 0, &nettel_fixed_phy_status, -1);
 	return 0;
 }
 
diff --git a/kernel/arch/m68k/coldfire/m54xx.c b/kernel/arch/m68k/coldfire/m54xx.c
index 075aaabd1..c32f76791 100644
--- a/kernel/arch/m68k/coldfire/m54xx.c
+++ b/kernel/arch/m68k/coldfire/m54xx.c
@@ -25,6 +25,7 @@
 #include <asm/m54xxgpt.h>
 #ifdef CONFIG_MMU
 #include <asm/mmu_context.h>
+#include <linux/pfn.h>
 #endif
 
 /***************************************************************************/
@@ -91,13 +92,13 @@ static void __init mcf54xx_bootmem_alloc(void)
 	m68k_memory[0].size = _ramend - _rambase;
 
 	/* compute total pages in system */
-	num_pages = (_ramend - _rambase) >> PAGE_SHIFT;
+	num_pages = PFN_DOWN(_ramend - _rambase);
 
 	/* page numbers */
 	memstart = PAGE_ALIGN(_ramstart);
-	min_low_pfn = _rambase >> PAGE_SHIFT;
-	start_pfn = memstart >> PAGE_SHIFT;
-	max_low_pfn = _ramend >> PAGE_SHIFT;
+	min_low_pfn = PFN_DOWN(_rambase);
+	start_pfn = PFN_DOWN(memstart);
+	max_pfn = max_low_pfn = PFN_DOWN(_ramend);
 	high_memory = (void *)_ramend;
 
 	m68k_virt_to_node_shift = fls(_ramend - _rambase - 1) - 6;
diff --git a/kernel/arch/m68k/coldfire/pit.c b/kernel/arch/m68k/coldfire/pit.c
index 493b3111d..d86a9ffb3 100644
--- a/kernel/arch/m68k/coldfire/pit.c
+++ b/kernel/arch/m68k/coldfire/pit.c
@@ -42,37 +42,28 @@ static u32 pit_cnt;
  * This is also called after resume to bring the PIT into operation again.
  */
 
-static void init_cf_pit_timer(enum clock_event_mode mode,
-                             struct clock_event_device *evt)
+static int cf_pit_set_periodic(struct clock_event_device *evt)
 {
-	switch (mode) {
-	case CLOCK_EVT_MODE_PERIODIC:
-
-		__raw_writew(MCFPIT_PCSR_DISABLE, TA(MCFPIT_PCSR));
-		__raw_writew(PIT_CYCLES_PER_JIFFY, TA(MCFPIT_PMR));
-		__raw_writew(MCFPIT_PCSR_EN | MCFPIT_PCSR_PIE | \
-				MCFPIT_PCSR_OVW | MCFPIT_PCSR_RLD | \
-				MCFPIT_PCSR_CLK64, TA(MCFPIT_PCSR));
-		break;
-
-	case CLOCK_EVT_MODE_SHUTDOWN:
-	case CLOCK_EVT_MODE_UNUSED:
-
-		__raw_writew(MCFPIT_PCSR_DISABLE, TA(MCFPIT_PCSR));
-		break;
-
-	case CLOCK_EVT_MODE_ONESHOT:
-
-		__raw_writew(MCFPIT_PCSR_DISABLE, TA(MCFPIT_PCSR));
-		__raw_writew(MCFPIT_PCSR_EN | MCFPIT_PCSR_PIE | \
-				MCFPIT_PCSR_OVW | MCFPIT_PCSR_CLK64, \
-				TA(MCFPIT_PCSR));
-		break;
-
-	case CLOCK_EVT_MODE_RESUME:
-		/* Nothing to do here */
-		break;
-	}
+	__raw_writew(MCFPIT_PCSR_DISABLE, TA(MCFPIT_PCSR));
+	__raw_writew(PIT_CYCLES_PER_JIFFY, TA(MCFPIT_PMR));
+	__raw_writew(MCFPIT_PCSR_EN | MCFPIT_PCSR_PIE |
+		     MCFPIT_PCSR_OVW | MCFPIT_PCSR_RLD |
+		     MCFPIT_PCSR_CLK64, TA(MCFPIT_PCSR));
+	return 0;
+}
+
+static int cf_pit_set_oneshot(struct clock_event_device *evt)
+{
+	__raw_writew(MCFPIT_PCSR_DISABLE, TA(MCFPIT_PCSR));
+	__raw_writew(MCFPIT_PCSR_EN | MCFPIT_PCSR_PIE |
+		     MCFPIT_PCSR_OVW | MCFPIT_PCSR_CLK64, TA(MCFPIT_PCSR));
+	return 0;
+}
+
+static int cf_pit_shutdown(struct clock_event_device *evt)
+{
+	__raw_writew(MCFPIT_PCSR_DISABLE, TA(MCFPIT_PCSR));
+	return 0;
 }
 
 /*
@@ -88,12 +79,15 @@ static int cf_pit_next_event(unsigned long delta,
 }
 
 struct clock_event_device cf_pit_clockevent = {
-	.name		= "pit",
-	.features	= CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT,
-	.set_mode	= init_cf_pit_timer,
-	.set_next_event	= cf_pit_next_event,
-	.shift		= 32,
-	.irq		= MCF_IRQ_PIT1,
+	.name			= "pit",
+	.features		= CLOCK_EVT_FEAT_PERIODIC |
+				  CLOCK_EVT_FEAT_ONESHOT,
+	.set_state_shutdown	= cf_pit_shutdown,
+	.set_state_periodic	= cf_pit_set_periodic,
+	.set_state_oneshot	= cf_pit_set_oneshot,
+	.set_next_event		= cf_pit_next_event,
+	.shift			= 32,
+	.irq			= MCF_IRQ_PIT1,
 };