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authorTakashi Iwai <tiwai@suse.de>2018-01-11 12:44:40 +0100
committerTakashi Iwai <tiwai@suse.de>2018-01-11 12:44:40 +0100
commit50a9cbfdcc4037aad422be83fd5106f4a8d42633 (patch)
treee9c15bf9383dbccae7e569ff8861eb393922f89d
parent58c53541346e203768f1b9a2409892f63d782c19 (diff)
parent379f855e928b52b26febcaf4d4555e43cfe32ca2 (diff)
Merge branch 'users/alnovak/SLE12-SP2/for-next' into SLE12-SP2
Pull x86/acpi fixes from Ales Novak (bsc#1068984) suse-commit: 570f32043790454efaa1047f1d39842465dd4e1d
-rw-r--r--arch/x86/kernel/acpi/boot.c60
1 files changed, 37 insertions, 23 deletions
diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c
index 9d4b22998da1..c32c9757af6d 100644
--- a/arch/x86/kernel/acpi/boot.c
+++ b/arch/x86/kernel/acpi/boot.c
@@ -321,13 +321,12 @@ acpi_parse_lapic_nmi(struct acpi_subtable_header * header, const unsigned long e
#ifdef CONFIG_X86_IO_APIC
#define MP_ISA_BUS 0
+static int __init mp_register_ioapic_irq(u8 bus_irq, u8 polarity,
+ u8 trigger, u32 gsi);
+
static void __init mp_override_legacy_irq(u8 bus_irq, u8 polarity, u8 trigger,
u32 gsi)
{
- int ioapic;
- int pin;
- struct mpc_intsrc mp_irq;
-
/*
* Check bus_irq boundary.
*/
@@ -337,14 +336,6 @@ static void __init mp_override_legacy_irq(u8 bus_irq, u8 polarity, u8 trigger,
}
/*
- * Convert 'gsi' to 'ioapic.pin'.
- */
- ioapic = mp_find_ioapic(gsi);
- if (ioapic < 0)
- return;
- pin = mp_find_ioapic_pin(ioapic, gsi);
-
- /*
* TBD: This check is for faulty timer entries, where the override
* erroneously sets the trigger to level, resulting in a HUGE
* increase of timer interrupts!
@@ -352,16 +343,8 @@ static void __init mp_override_legacy_irq(u8 bus_irq, u8 polarity, u8 trigger,
if ((bus_irq == 0) && (trigger == 3))
trigger = 1;
- mp_irq.type = MP_INTSRC;
- mp_irq.irqtype = mp_INT;
- mp_irq.irqflag = (trigger << 2) | polarity;
- mp_irq.srcbus = MP_ISA_BUS;
- mp_irq.srcbusirq = bus_irq; /* IRQ */
- mp_irq.dstapic = mpc_ioapic_id(ioapic); /* APIC ID */
- mp_irq.dstirq = pin; /* INTIN# */
-
- mp_save_irq(&mp_irq);
-
+ if (mp_register_ioapic_irq(bus_irq, polarity, trigger, gsi) < 0)
+ return;
/*
* Reset default identity mapping if gsi is also an legacy IRQ,
* otherwise there will be more than one entry with the same GSI
@@ -408,6 +391,34 @@ static int mp_config_acpi_gsi(struct device *dev, u32 gsi, int trigger,
return 0;
}
+static int __init mp_register_ioapic_irq(u8 bus_irq, u8 polarity,
+ u8 trigger, u32 gsi)
+{
+ struct mpc_intsrc mp_irq;
+ int ioapic, pin;
+
+ /* Convert 'gsi' to 'ioapic.pin'(INTIN#) */
+ ioapic = mp_find_ioapic(gsi);
+ if (ioapic < 0) {
+ pr_warn("Failed to find ioapic for gsi : %u\n", gsi);
+ return ioapic;
+ }
+
+ pin = mp_find_ioapic_pin(ioapic, gsi);
+
+ mp_irq.type = MP_INTSRC;
+ mp_irq.irqtype = mp_INT;
+ mp_irq.irqflag = (trigger << 2) | polarity;
+ mp_irq.srcbus = MP_ISA_BUS;
+ mp_irq.srcbusirq = bus_irq;
+ mp_irq.dstapic = mpc_ioapic_id(ioapic);
+ mp_irq.dstirq = pin;
+
+ mp_save_irq(&mp_irq);
+
+ return 0;
+}
+
static int __init
acpi_parse_ioapic(struct acpi_subtable_header * header, const unsigned long end)
{
@@ -452,7 +463,10 @@ static void __init acpi_sci_ioapic_setup(u8 bus_irq, u16 polarity, u16 trigger,
if (acpi_sci_flags & ACPI_MADT_POLARITY_MASK)
polarity = acpi_sci_flags & ACPI_MADT_POLARITY_MASK;
- mp_override_legacy_irq(bus_irq, polarity, trigger, gsi);
+ if (bus_irq < NR_IRQS_LEGACY)
+ mp_override_legacy_irq(bus_irq, polarity, trigger, gsi);
+ else
+ mp_register_ioapic_irq(bus_irq, polarity, trigger, gsi);
acpi_penalize_sci_irq(bus_irq, trigger, polarity);
/*