Merge branch 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...

[firefly-linux-kernel-4.4.55.git] / arch / x86 / kernel / apic / apic.c

diff --git a/arch/x86/kernel/apic/apic.c b/arch/x86/kernel/apic/apic.c
index 562a8325cc1c07c06d4dcbf51a84f5040a53d996..966673f44141ef1db7d5f8e1ab198fc28b53f6df 100644 (file)
--- a/arch/x86/kernel/apic/apic.c
+++ b/arch/x86/kernel/apic/apic.c
@@ -93,7 +93,7 @@ DEFINE_EARLY_PER_CPU(int, x86_cpu_to_logical_apicid, BAD_APICID);
  *
  * +1=force-enable
  */
-static int force_enable_local_apic;
+static int force_enable_local_apic __initdata;
 /*
  * APIC command line parameters
  */
@@ -163,7 +163,7 @@ early_param("nox2apic", setup_nox2apic);
 unsigned long mp_lapic_addr;
 int disable_apic;
 /* Disable local APIC timer from the kernel commandline or via dmi quirk */
-static int disable_apic_timer __cpuinitdata;
+static int disable_apic_timer __initdata;
 /* Local APIC timer works in C2 */
 int local_apic_timer_c2_ok;
 EXPORT_SYMBOL_GPL(local_apic_timer_c2_ok);
@@ -187,29 +187,8 @@ static struct resource lapic_resource = {
 
 static unsigned int calibration_result;
 
-static int lapic_next_event(unsigned long delta,
-                           struct clock_event_device *evt);
-static void lapic_timer_setup(enum clock_event_mode mode,
-                             struct clock_event_device *evt);
-static void lapic_timer_broadcast(const struct cpumask *mask);
 static void apic_pm_activate(void);
 
-/*
- * The local apic timer can be used for any function which is CPU local.
- */
-static struct clock_event_device lapic_clockevent = {
-       .name           = "lapic",
-       .features       = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT
-                       | CLOCK_EVT_FEAT_C3STOP | CLOCK_EVT_FEAT_DUMMY,
-       .shift          = 32,
-       .set_mode       = lapic_timer_setup,
-       .set_next_event = lapic_next_event,
-       .broadcast      = lapic_timer_broadcast,
-       .rating         = 100,
-       .irq            = -1,
-};
-static DEFINE_PER_CPU(struct clock_event_device, lapic_events);
-
 static unsigned long apic_phys;
 
 /*
@@ -248,7 +227,7 @@ static int modern_apic(void)
  * right after this call apic become NOOP driven
  * so apic->write/read doesn't do anything
  */
-void apic_disable(void)
+static void __init apic_disable(void)
 {
        pr_info("APIC: switched to apic NOOP\n");
        apic = &apic_noop;
@@ -292,23 +271,6 @@ u64 native_apic_icr_read(void)
        return icr1 | ((u64)icr2 << 32);
 }
 
-/**
- * enable_NMI_through_LVT0 - enable NMI through local vector table 0
- */
-void __cpuinit enable_NMI_through_LVT0(void)
-{
-       unsigned int v;
-
-       /* unmask and set to NMI */
-       v = APIC_DM_NMI;
-
-       /* Level triggered for 82489DX (32bit mode) */
-       if (!lapic_is_integrated())
-               v |= APIC_LVT_LEVEL_TRIGGER;
-
-       apic_write(APIC_LVT0, v);
-}
-
 #ifdef CONFIG_X86_32
 /**
  * get_physical_broadcast - Get number of physical broadcast IDs
@@ -518,6 +480,23 @@ static void lapic_timer_broadcast(const struct cpumask *mask)
 #endif
 }
 
+
+/*
+ * The local apic timer can be used for any function which is CPU local.
+ */
+static struct clock_event_device lapic_clockevent = {
+       .name           = "lapic",
+       .features       = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT
+                       | CLOCK_EVT_FEAT_C3STOP | CLOCK_EVT_FEAT_DUMMY,
+       .shift          = 32,
+       .set_mode       = lapic_timer_setup,
+       .set_next_event = lapic_next_event,
+       .broadcast      = lapic_timer_broadcast,
+       .rating         = 100,
+       .irq            = -1,
+};
+static DEFINE_PER_CPU(struct clock_event_device, lapic_events);
+
 /*
  * Setup the local APIC timer for this CPU. Copy the initialized values
  * of the boot CPU and register the clock event in the framework.
@@ -1560,7 +1539,7 @@ static int __init detect_init_APIC(void)
 }
 #else
 
-static int apic_verify(void)
+static int __init apic_verify(void)
 {
        u32 features, h, l;
 
@@ -1585,7 +1564,7 @@ static int apic_verify(void)
        return 0;
 }
 
-int apic_force_enable(void)
+int __init apic_force_enable(unsigned long addr)
 {
        u32 h, l;
 
@@ -1601,7 +1580,7 @@ int apic_force_enable(void)
        if (!(l & MSR_IA32_APICBASE_ENABLE)) {
                pr_info("Local APIC disabled by BIOS -- reenabling.\n");
                l &= ~MSR_IA32_APICBASE_BASE;
-               l |= MSR_IA32_APICBASE_ENABLE | APIC_DEFAULT_PHYS_BASE;
+               l |= MSR_IA32_APICBASE_ENABLE | addr;
                wrmsr(MSR_IA32_APICBASE, l, h);
                enabled_via_apicbase = 1;
        }
@@ -1642,7 +1621,7 @@ static int __init detect_init_APIC(void)
                                "you can enable it with \"lapic\"\n");
                        return -1;
                }
-               if (apic_force_enable())
+               if (apic_force_enable(APIC_DEFAULT_PHYS_BASE))
                        return -1;
        } else {
                if (apic_verify())