+++ /dev/null
-From d5a1c7e3fc38d9c7d629e1e47f32f863acbdec3d Mon Sep 17 00:00:00 2001
-From: Borislav Petkov <bp@alien8.de>
-Date: Sat, 20 Jul 2013 19:00:23 +0200
-Subject: rtc-cmos: Add an alarm disable quirk
-
-From: Borislav Petkov <bp@alien8.de>
-
-commit d5a1c7e3fc38d9c7d629e1e47f32f863acbdec3d upstream.
-
-41c7f7424259f ("rtc: Disable the alarm in the hardware (v2)") added the
-functionality to disable the RTC wake alarm when shutting down the box.
-
-However, there are at least two b0rked BIOSes we know about:
-
-https://bugzilla.novell.com/show_bug.cgi?id=812592
-https://bugzilla.novell.com/show_bug.cgi?id=805740
-
-where, when wakeup alarm is enabled in the BIOS, the machine reboots
-automatically right after shutdown, regardless of what wakeup time is
-programmed.
-
-Bisecting the issue lead to this patch so disable its functionality with
-a DMI quirk only for those boxes.
-
-Cc: Brecht Machiels <brecht@mos6581.org>
-Cc: Thomas Gleixner <tglx@linutronix.de>
-Cc: John Stultz <john.stultz@linaro.org>
-Cc: Rabin Vincent <rabin.vincent@stericsson.com>
-Signed-off-by: Borislav Petkov <bp@suse.de>
-[jstultz: Changed variable name for clarity, added extra dmi entry]
-Tested-by: Brecht Machiels <brecht@mos6581.org>
-Tested-by: Borislav Petkov <bp@suse.de>
-Signed-off-by: John Stultz <john.stultz@linaro.org>
-Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-
----
- drivers/rtc/rtc-cmos.c | 52 ++++++++++++++++++++++++++++++++++++++++++++++++-
- 1 file changed, 51 insertions(+), 1 deletion(-)
-
---- a/drivers/rtc/rtc-cmos.c
-+++ b/drivers/rtc/rtc-cmos.c
-@@ -34,11 +34,11 @@
- #include <linux/interrupt.h>
- #include <linux/spinlock.h>
- #include <linux/platform_device.h>
--#include <linux/mod_devicetable.h>
- #include <linux/log2.h>
- #include <linux/pm.h>
- #include <linux/of.h>
- #include <linux/of_platform.h>
-+#include <linux/dmi.h>
-
- /* this is for "generic access to PC-style RTC" using CMOS_READ/CMOS_WRITE */
- #include <asm-generic/rtc.h>
-@@ -377,6 +377,51 @@ static int cmos_set_alarm(struct device
- return 0;
- }
-
-+/*
-+ * Do not disable RTC alarm on shutdown - workaround for b0rked BIOSes.
-+ */
-+static bool alarm_disable_quirk;
-+
-+static int __init set_alarm_disable_quirk(const struct dmi_system_id *id)
-+{
-+ alarm_disable_quirk = true;
-+ pr_info("rtc-cmos: BIOS has alarm-disable quirk. ");
-+ pr_info("RTC alarms disabled\n");
-+ return 0;
-+}
-+
-+static const struct dmi_system_id rtc_quirks[] __initconst = {
-+ /* https://bugzilla.novell.com/show_bug.cgi?id=805740 */
-+ {
-+ .callback = set_alarm_disable_quirk,
-+ .ident = "IBM Truman",
-+ .matches = {
-+ DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
-+ DMI_MATCH(DMI_PRODUCT_NAME, "4852570"),
-+ },
-+ },
-+ /* https://bugzilla.novell.com/show_bug.cgi?id=812592 */
-+ {
-+ .callback = set_alarm_disable_quirk,
-+ .ident = "Gigabyte GA-990XA-UD3",
-+ .matches = {
-+ DMI_MATCH(DMI_SYS_VENDOR,
-+ "Gigabyte Technology Co., Ltd."),
-+ DMI_MATCH(DMI_PRODUCT_NAME, "GA-990XA-UD3"),
-+ },
-+ },
-+ /* http://permalink.gmane.org/gmane.linux.kernel/1604474 */
-+ {
-+ .callback = set_alarm_disable_quirk,
-+ .ident = "Toshiba Satellite L300",
-+ .matches = {
-+ DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
-+ DMI_MATCH(DMI_PRODUCT_NAME, "Satellite L300"),
-+ },
-+ },
-+ {}
-+};
-+
- static int cmos_alarm_irq_enable(struct device *dev, unsigned int enabled)
- {
- struct cmos_rtc *cmos = dev_get_drvdata(dev);
-@@ -385,6 +430,9 @@ static int cmos_alarm_irq_enable(struct
- if (!is_valid_irq(cmos->irq))
- return -EINVAL;
-
-+ if (alarm_disable_quirk)
-+ return 0;
-+
- spin_lock_irqsave(&rtc_lock, flags);
-
- if (enabled)
-@@ -1163,6 +1211,8 @@ static int __init cmos_init(void)
- platform_driver_registered = true;
- }
-
-+ dmi_check_system(rtc_quirks);
-+
- if (retval == 0)
- return 0;
-
mm-mempolicy.c-fix-mempolicy-printing-in-numa_maps.patch
x86-x32-correct-invalid-use-of-user-timespec-in-the-kernel.patch
x86-efi-fix-off-by-one-bug-in-efi-boot-services-reservation.patch
-x86-add-check-for-number-of-available-vectors-before-cpu-down.patch
kvm-x86-limit-pit-timer-frequency.patch
usb-pl2303-fix-data-corruption-on-termios-updates.patch
usb-option-add-new-zte-3g-modem-pids-to-option-driver.patch
kvm-s390-fix-diagnose-code-extraction.patch
s390-uapi-fix-struct-statfs64-definition.patch
parport-parport_pc-remove-double-pci-id-for-netmos.patch
-rtc-cmos-add-an-alarm-disable-quirk.patch
rtc-max8907-weekday-encoding-fixes.patch
pinctrl-sunxi-honor-gpio-output-initial-vaules.patch
perf-kvm-fix-kvm-report-without-guestmount.patch
+++ /dev/null
-From da6139e49c7cb0f4251265cb5243b8d220adb48d Mon Sep 17 00:00:00 2001
-From: Prarit Bhargava <prarit@redhat.com>
-Date: Mon, 13 Jan 2014 06:51:01 -0500
-Subject: x86: Add check for number of available vectors before CPU down
-
-From: Prarit Bhargava <prarit@redhat.com>
-
-commit da6139e49c7cb0f4251265cb5243b8d220adb48d upstream.
-
-Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=64791
-
-When a cpu is downed on a system, the irqs on the cpu are assigned to
-other cpus. It is possible, however, that when a cpu is downed there
-aren't enough free vectors on the remaining cpus to account for the
-vectors from the cpu that is being downed.
-
-This results in an interesting "overflow" condition where irqs are
-"assigned" to a CPU but are not handled.
-
-For example, when downing cpus on a 1-64 logical processor system:
-
-<snip>
-[ 232.021745] smpboot: CPU 61 is now offline
-[ 238.480275] smpboot: CPU 62 is now offline
-[ 245.991080] ------------[ cut here ]------------
-[ 245.996270] WARNING: CPU: 0 PID: 0 at net/sched/sch_generic.c:264 dev_watchdog+0x246/0x250()
-[ 246.005688] NETDEV WATCHDOG: p786p1 (ixgbe): transmit queue 0 timed out
-[ 246.013070] Modules linked in: lockd sunrpc iTCO_wdt iTCO_vendor_support sb_edac ixgbe microcode e1000e pcspkr joydev edac_core lpc_ich ioatdma ptp mdio mfd_core i2c_i801 dca pps_core i2c_core wmi acpi_cpufreq isci libsas scsi_transport_sas
-[ 246.037633] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 3.12.0+ #14
-[ 246.044451] Hardware name: Intel Corporation S4600LH ........../SVRBD-ROW_T, BIOS SE5C600.86B.01.08.0003.022620131521 02/26/2013
-[ 246.057371] 0000000000000009 ffff88081fa03d40 ffffffff8164fbf6 ffff88081fa0ee48
-[ 246.065728] ffff88081fa03d90 ffff88081fa03d80 ffffffff81054ecc ffff88081fa13040
-[ 246.074073] 0000000000000000 ffff88200cce0000 0000000000000040 0000000000000000
-[ 246.082430] Call Trace:
-[ 246.085174] <IRQ> [<ffffffff8164fbf6>] dump_stack+0x46/0x58
-[ 246.091633] [<ffffffff81054ecc>] warn_slowpath_common+0x8c/0xc0
-[ 246.098352] [<ffffffff81054fb6>] warn_slowpath_fmt+0x46/0x50
-[ 246.104786] [<ffffffff815710d6>] dev_watchdog+0x246/0x250
-[ 246.110923] [<ffffffff81570e90>] ? dev_deactivate_queue.constprop.31+0x80/0x80
-[ 246.119097] [<ffffffff8106092a>] call_timer_fn+0x3a/0x110
-[ 246.125224] [<ffffffff8106280f>] ? update_process_times+0x6f/0x80
-[ 246.132137] [<ffffffff81570e90>] ? dev_deactivate_queue.constprop.31+0x80/0x80
-[ 246.140308] [<ffffffff81061db0>] run_timer_softirq+0x1f0/0x2a0
-[ 246.146933] [<ffffffff81059a80>] __do_softirq+0xe0/0x220
-[ 246.152976] [<ffffffff8165fedc>] call_softirq+0x1c/0x30
-[ 246.158920] [<ffffffff810045f5>] do_softirq+0x55/0x90
-[ 246.164670] [<ffffffff81059d35>] irq_exit+0xa5/0xb0
-[ 246.170227] [<ffffffff8166062a>] smp_apic_timer_interrupt+0x4a/0x60
-[ 246.177324] [<ffffffff8165f40a>] apic_timer_interrupt+0x6a/0x70
-[ 246.184041] <EOI> [<ffffffff81505a1b>] ? cpuidle_enter_state+0x5b/0xe0
-[ 246.191559] [<ffffffff81505a17>] ? cpuidle_enter_state+0x57/0xe0
-[ 246.198374] [<ffffffff81505b5d>] cpuidle_idle_call+0xbd/0x200
-[ 246.204900] [<ffffffff8100b7ae>] arch_cpu_idle+0xe/0x30
-[ 246.210846] [<ffffffff810a47b0>] cpu_startup_entry+0xd0/0x250
-[ 246.217371] [<ffffffff81646b47>] rest_init+0x77/0x80
-[ 246.223028] [<ffffffff81d09e8e>] start_kernel+0x3ee/0x3fb
-[ 246.229165] [<ffffffff81d0989f>] ? repair_env_string+0x5e/0x5e
-[ 246.235787] [<ffffffff81d095a5>] x86_64_start_reservations+0x2a/0x2c
-[ 246.242990] [<ffffffff81d0969f>] x86_64_start_kernel+0xf8/0xfc
-[ 246.249610] ---[ end trace fb74fdef54d79039 ]---
-[ 246.254807] ixgbe 0000:c2:00.0 p786p1: initiating reset due to tx timeout
-[ 246.262489] ixgbe 0000:c2:00.0 p786p1: Reset adapter
-Last login: Mon Nov 11 08:35:14 from 10.18.17.119
-[root@(none) ~]# [ 246.792676] ixgbe 0000:c2:00.0 p786p1: detected SFP+: 5
-[ 249.231598] ixgbe 0000:c2:00.0 p786p1: NIC Link is Up 10 Gbps, Flow Control: RX/TX
-[ 246.792676] ixgbe 0000:c2:00.0 p786p1: detected SFP+: 5
-[ 249.231598] ixgbe 0000:c2:00.0 p786p1: NIC Link is Up 10 Gbps, Flow Control: RX/TX
-
-(last lines keep repeating. ixgbe driver is dead until module reload.)
-
-If the downed cpu has more vectors than are free on the remaining cpus on the
-system, it is possible that some vectors are "orphaned" even though they are
-assigned to a cpu. In this case, since the ixgbe driver had a watchdog, the
-watchdog fired and notified that something was wrong.
-
-This patch adds a function, check_vectors(), to compare the number of vectors
-on the CPU going down and compares it to the number of vectors available on
-the system. If there aren't enough vectors for the CPU to go down, an
-error is returned and propogated back to userspace.
-
-v2: Do not need to look at percpu irqs
-v3: Need to check affinity to prevent counting of MSIs in IOAPIC Lowest
- Priority Mode
-v4: Additional changes suggested by Gong Chen.
-v5/v6/v7/v8: Updated comment text
-
-Signed-off-by: Prarit Bhargava <prarit@redhat.com>
-Link: http://lkml.kernel.org/r/1389613861-3853-1-git-send-email-prarit@redhat.com
-Reviewed-by: Gong Chen <gong.chen@linux.intel.com>
-Cc: Andi Kleen <ak@linux.intel.com>
-Cc: Michel Lespinasse <walken@google.com>
-Cc: Seiji Aguchi <seiji.aguchi@hds.com>
-Cc: Yang Zhang <yang.z.zhang@Intel.com>
-Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
-Cc: Janet Morgan <janet.morgan@intel.com>
-Cc: Tony Luck <tony.luck@intel.com>
-Cc: Ruiv Wang <ruiv.wang@gmail.com>
-Cc: Gong Chen <gong.chen@linux.intel.com>
-Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
-Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-
----
- arch/x86/include/asm/irq.h | 1
- arch/x86/kernel/irq.c | 70 +++++++++++++++++++++++++++++++++++++++++++++
- arch/x86/kernel/smpboot.c | 6 +++
- 3 files changed, 77 insertions(+)
-
---- a/arch/x86/include/asm/irq.h
-+++ b/arch/x86/include/asm/irq.h
-@@ -25,6 +25,7 @@ extern void irq_ctx_init(int cpu);
-
- #ifdef CONFIG_HOTPLUG_CPU
- #include <linux/cpumask.h>
-+extern int check_irq_vectors_for_cpu_disable(void);
- extern void fixup_irqs(void);
- extern void irq_force_complete_move(int);
- #endif
---- a/arch/x86/kernel/irq.c
-+++ b/arch/x86/kernel/irq.c
-@@ -249,6 +249,76 @@ void smp_kvm_posted_intr_ipi(struct pt_r
- EXPORT_SYMBOL_GPL(vector_used_by_percpu_irq);
-
- #ifdef CONFIG_HOTPLUG_CPU
-+/*
-+ * This cpu is going to be removed and its vectors migrated to the remaining
-+ * online cpus. Check to see if there are enough vectors in the remaining cpus.
-+ * This function is protected by stop_machine().
-+ */
-+int check_irq_vectors_for_cpu_disable(void)
-+{
-+ int irq, cpu;
-+ unsigned int this_cpu, vector, this_count, count;
-+ struct irq_desc *desc;
-+ struct irq_data *data;
-+ struct cpumask affinity_new, online_new;
-+
-+ this_cpu = smp_processor_id();
-+ cpumask_copy(&online_new, cpu_online_mask);
-+ cpu_clear(this_cpu, online_new);
-+
-+ this_count = 0;
-+ for (vector = FIRST_EXTERNAL_VECTOR; vector < NR_VECTORS; vector++) {
-+ irq = __this_cpu_read(vector_irq[vector]);
-+ if (irq >= 0) {
-+ desc = irq_to_desc(irq);
-+ data = irq_desc_get_irq_data(desc);
-+ cpumask_copy(&affinity_new, data->affinity);
-+ cpu_clear(this_cpu, affinity_new);
-+
-+ /* Do not count inactive or per-cpu irqs. */
-+ if (!irq_has_action(irq) || irqd_is_per_cpu(data))
-+ continue;
-+
-+ /*
-+ * A single irq may be mapped to multiple
-+ * cpu's vector_irq[] (for example IOAPIC cluster
-+ * mode). In this case we have two
-+ * possibilities:
-+ *
-+ * 1) the resulting affinity mask is empty; that is
-+ * this the down'd cpu is the last cpu in the irq's
-+ * affinity mask, or
-+ *
-+ * 2) the resulting affinity mask is no longer
-+ * a subset of the online cpus but the affinity
-+ * mask is not zero; that is the down'd cpu is the
-+ * last online cpu in a user set affinity mask.
-+ */
-+ if (cpumask_empty(&affinity_new) ||
-+ !cpumask_subset(&affinity_new, &online_new))
-+ this_count++;
-+ }
-+ }
-+
-+ count = 0;
-+ for_each_online_cpu(cpu) {
-+ if (cpu == this_cpu)
-+ continue;
-+ for (vector = FIRST_EXTERNAL_VECTOR; vector < NR_VECTORS;
-+ vector++) {
-+ if (per_cpu(vector_irq, cpu)[vector] < 0)
-+ count++;
-+ }
-+ }
-+
-+ if (count < this_count) {
-+ pr_warn("CPU %d disable failed: CPU has %u vectors assigned and there are only %u available.\n",
-+ this_cpu, this_count, count);
-+ return -ERANGE;
-+ }
-+ return 0;
-+}
-+
- /* A cpu has been removed from cpu_online_mask. Reset irq affinities. */
- void fixup_irqs(void)
- {
---- a/arch/x86/kernel/smpboot.c
-+++ b/arch/x86/kernel/smpboot.c
-@@ -1309,6 +1309,12 @@ void cpu_disable_common(void)
-
- int native_cpu_disable(void)
- {
-+ int ret;
-+
-+ ret = check_irq_vectors_for_cpu_disable();
-+ if (ret)
-+ return ret;
-+
- clear_local_APIC();
-
- cpu_disable_common();
+++ /dev/null
-From d5a1c7e3fc38d9c7d629e1e47f32f863acbdec3d Mon Sep 17 00:00:00 2001
-From: Borislav Petkov <bp@alien8.de>
-Date: Sat, 20 Jul 2013 19:00:23 +0200
-Subject: rtc-cmos: Add an alarm disable quirk
-
-From: Borislav Petkov <bp@alien8.de>
-
-commit d5a1c7e3fc38d9c7d629e1e47f32f863acbdec3d upstream.
-
-41c7f7424259f ("rtc: Disable the alarm in the hardware (v2)") added the
-functionality to disable the RTC wake alarm when shutting down the box.
-
-However, there are at least two b0rked BIOSes we know about:
-
-https://bugzilla.novell.com/show_bug.cgi?id=812592
-https://bugzilla.novell.com/show_bug.cgi?id=805740
-
-where, when wakeup alarm is enabled in the BIOS, the machine reboots
-automatically right after shutdown, regardless of what wakeup time is
-programmed.
-
-Bisecting the issue lead to this patch so disable its functionality with
-a DMI quirk only for those boxes.
-
-Cc: Brecht Machiels <brecht@mos6581.org>
-Cc: Thomas Gleixner <tglx@linutronix.de>
-Cc: John Stultz <john.stultz@linaro.org>
-Cc: Rabin Vincent <rabin.vincent@stericsson.com>
-Signed-off-by: Borislav Petkov <bp@suse.de>
-[jstultz: Changed variable name for clarity, added extra dmi entry]
-Tested-by: Brecht Machiels <brecht@mos6581.org>
-Tested-by: Borislav Petkov <bp@suse.de>
-Signed-off-by: John Stultz <john.stultz@linaro.org>
-Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-
----
- drivers/rtc/rtc-cmos.c | 52 ++++++++++++++++++++++++++++++++++++++++++++++++-
- 1 file changed, 51 insertions(+), 1 deletion(-)
-
---- a/drivers/rtc/rtc-cmos.c
-+++ b/drivers/rtc/rtc-cmos.c
-@@ -34,11 +34,11 @@
- #include <linux/interrupt.h>
- #include <linux/spinlock.h>
- #include <linux/platform_device.h>
--#include <linux/mod_devicetable.h>
- #include <linux/log2.h>
- #include <linux/pm.h>
- #include <linux/of.h>
- #include <linux/of_platform.h>
-+#include <linux/dmi.h>
-
- /* this is for "generic access to PC-style RTC" using CMOS_READ/CMOS_WRITE */
- #include <asm-generic/rtc.h>
-@@ -377,6 +377,51 @@ static int cmos_set_alarm(struct device
- return 0;
- }
-
-+/*
-+ * Do not disable RTC alarm on shutdown - workaround for b0rked BIOSes.
-+ */
-+static bool alarm_disable_quirk;
-+
-+static int __init set_alarm_disable_quirk(const struct dmi_system_id *id)
-+{
-+ alarm_disable_quirk = true;
-+ pr_info("rtc-cmos: BIOS has alarm-disable quirk. ");
-+ pr_info("RTC alarms disabled\n");
-+ return 0;
-+}
-+
-+static const struct dmi_system_id rtc_quirks[] __initconst = {
-+ /* https://bugzilla.novell.com/show_bug.cgi?id=805740 */
-+ {
-+ .callback = set_alarm_disable_quirk,
-+ .ident = "IBM Truman",
-+ .matches = {
-+ DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
-+ DMI_MATCH(DMI_PRODUCT_NAME, "4852570"),
-+ },
-+ },
-+ /* https://bugzilla.novell.com/show_bug.cgi?id=812592 */
-+ {
-+ .callback = set_alarm_disable_quirk,
-+ .ident = "Gigabyte GA-990XA-UD3",
-+ .matches = {
-+ DMI_MATCH(DMI_SYS_VENDOR,
-+ "Gigabyte Technology Co., Ltd."),
-+ DMI_MATCH(DMI_PRODUCT_NAME, "GA-990XA-UD3"),
-+ },
-+ },
-+ /* http://permalink.gmane.org/gmane.linux.kernel/1604474 */
-+ {
-+ .callback = set_alarm_disable_quirk,
-+ .ident = "Toshiba Satellite L300",
-+ .matches = {
-+ DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
-+ DMI_MATCH(DMI_PRODUCT_NAME, "Satellite L300"),
-+ },
-+ },
-+ {}
-+};
-+
- static int cmos_alarm_irq_enable(struct device *dev, unsigned int enabled)
- {
- struct cmos_rtc *cmos = dev_get_drvdata(dev);
-@@ -385,6 +430,9 @@ static int cmos_alarm_irq_enable(struct
- if (!is_valid_irq(cmos->irq))
- return -EINVAL;
-
-+ if (alarm_disable_quirk)
-+ return 0;
-+
- spin_lock_irqsave(&rtc_lock, flags);
-
- if (enabled)
-@@ -1158,6 +1206,8 @@ static int __init cmos_init(void)
- platform_driver_registered = true;
- }
-
-+ dmi_check_system(rtc_quirks);
-+
- if (retval == 0)
- return 0;
-
mm-mempolicy.c-fix-mempolicy-printing-in-numa_maps.patch
x86-x32-correct-invalid-use-of-user-timespec-in-the-kernel.patch
x86-efi-fix-off-by-one-bug-in-efi-boot-services-reservation.patch
-x86-add-check-for-number-of-available-vectors-before-cpu-down.patch
kvm-x86-limit-pit-timer-frequency.patch
x86-kvm-cache-the-base-of-the-kvm-cpuid-leaves.patch
x86-kvm-correctly-access-the-kvm_cpuid_features-leaf-at-0x40000101.patch
kvm-s390-ioeventfd-ignore-leftmost-bits.patch
s390-uapi-fix-struct-statfs64-definition.patch
parport-parport_pc-remove-double-pci-id-for-netmos.patch
-rtc-cmos-add-an-alarm-disable-quirk.patch
rtc-max8907-weekday-encoding-fixes.patch
pinctrl-sunxi-honor-gpio-output-initial-vaules.patch
perf-kvm-fix-kvm-report-without-guestmount.patch
+++ /dev/null
-From da6139e49c7cb0f4251265cb5243b8d220adb48d Mon Sep 17 00:00:00 2001
-From: Prarit Bhargava <prarit@redhat.com>
-Date: Mon, 13 Jan 2014 06:51:01 -0500
-Subject: x86: Add check for number of available vectors before CPU down
-
-From: Prarit Bhargava <prarit@redhat.com>
-
-commit da6139e49c7cb0f4251265cb5243b8d220adb48d upstream.
-
-Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=64791
-
-When a cpu is downed on a system, the irqs on the cpu are assigned to
-other cpus. It is possible, however, that when a cpu is downed there
-aren't enough free vectors on the remaining cpus to account for the
-vectors from the cpu that is being downed.
-
-This results in an interesting "overflow" condition where irqs are
-"assigned" to a CPU but are not handled.
-
-For example, when downing cpus on a 1-64 logical processor system:
-
-<snip>
-[ 232.021745] smpboot: CPU 61 is now offline
-[ 238.480275] smpboot: CPU 62 is now offline
-[ 245.991080] ------------[ cut here ]------------
-[ 245.996270] WARNING: CPU: 0 PID: 0 at net/sched/sch_generic.c:264 dev_watchdog+0x246/0x250()
-[ 246.005688] NETDEV WATCHDOG: p786p1 (ixgbe): transmit queue 0 timed out
-[ 246.013070] Modules linked in: lockd sunrpc iTCO_wdt iTCO_vendor_support sb_edac ixgbe microcode e1000e pcspkr joydev edac_core lpc_ich ioatdma ptp mdio mfd_core i2c_i801 dca pps_core i2c_core wmi acpi_cpufreq isci libsas scsi_transport_sas
-[ 246.037633] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 3.12.0+ #14
-[ 246.044451] Hardware name: Intel Corporation S4600LH ........../SVRBD-ROW_T, BIOS SE5C600.86B.01.08.0003.022620131521 02/26/2013
-[ 246.057371] 0000000000000009 ffff88081fa03d40 ffffffff8164fbf6 ffff88081fa0ee48
-[ 246.065728] ffff88081fa03d90 ffff88081fa03d80 ffffffff81054ecc ffff88081fa13040
-[ 246.074073] 0000000000000000 ffff88200cce0000 0000000000000040 0000000000000000
-[ 246.082430] Call Trace:
-[ 246.085174] <IRQ> [<ffffffff8164fbf6>] dump_stack+0x46/0x58
-[ 246.091633] [<ffffffff81054ecc>] warn_slowpath_common+0x8c/0xc0
-[ 246.098352] [<ffffffff81054fb6>] warn_slowpath_fmt+0x46/0x50
-[ 246.104786] [<ffffffff815710d6>] dev_watchdog+0x246/0x250
-[ 246.110923] [<ffffffff81570e90>] ? dev_deactivate_queue.constprop.31+0x80/0x80
-[ 246.119097] [<ffffffff8106092a>] call_timer_fn+0x3a/0x110
-[ 246.125224] [<ffffffff8106280f>] ? update_process_times+0x6f/0x80
-[ 246.132137] [<ffffffff81570e90>] ? dev_deactivate_queue.constprop.31+0x80/0x80
-[ 246.140308] [<ffffffff81061db0>] run_timer_softirq+0x1f0/0x2a0
-[ 246.146933] [<ffffffff81059a80>] __do_softirq+0xe0/0x220
-[ 246.152976] [<ffffffff8165fedc>] call_softirq+0x1c/0x30
-[ 246.158920] [<ffffffff810045f5>] do_softirq+0x55/0x90
-[ 246.164670] [<ffffffff81059d35>] irq_exit+0xa5/0xb0
-[ 246.170227] [<ffffffff8166062a>] smp_apic_timer_interrupt+0x4a/0x60
-[ 246.177324] [<ffffffff8165f40a>] apic_timer_interrupt+0x6a/0x70
-[ 246.184041] <EOI> [<ffffffff81505a1b>] ? cpuidle_enter_state+0x5b/0xe0
-[ 246.191559] [<ffffffff81505a17>] ? cpuidle_enter_state+0x57/0xe0
-[ 246.198374] [<ffffffff81505b5d>] cpuidle_idle_call+0xbd/0x200
-[ 246.204900] [<ffffffff8100b7ae>] arch_cpu_idle+0xe/0x30
-[ 246.210846] [<ffffffff810a47b0>] cpu_startup_entry+0xd0/0x250
-[ 246.217371] [<ffffffff81646b47>] rest_init+0x77/0x80
-[ 246.223028] [<ffffffff81d09e8e>] start_kernel+0x3ee/0x3fb
-[ 246.229165] [<ffffffff81d0989f>] ? repair_env_string+0x5e/0x5e
-[ 246.235787] [<ffffffff81d095a5>] x86_64_start_reservations+0x2a/0x2c
-[ 246.242990] [<ffffffff81d0969f>] x86_64_start_kernel+0xf8/0xfc
-[ 246.249610] ---[ end trace fb74fdef54d79039 ]---
-[ 246.254807] ixgbe 0000:c2:00.0 p786p1: initiating reset due to tx timeout
-[ 246.262489] ixgbe 0000:c2:00.0 p786p1: Reset adapter
-Last login: Mon Nov 11 08:35:14 from 10.18.17.119
-[root@(none) ~]# [ 246.792676] ixgbe 0000:c2:00.0 p786p1: detected SFP+: 5
-[ 249.231598] ixgbe 0000:c2:00.0 p786p1: NIC Link is Up 10 Gbps, Flow Control: RX/TX
-[ 246.792676] ixgbe 0000:c2:00.0 p786p1: detected SFP+: 5
-[ 249.231598] ixgbe 0000:c2:00.0 p786p1: NIC Link is Up 10 Gbps, Flow Control: RX/TX
-
-(last lines keep repeating. ixgbe driver is dead until module reload.)
-
-If the downed cpu has more vectors than are free on the remaining cpus on the
-system, it is possible that some vectors are "orphaned" even though they are
-assigned to a cpu. In this case, since the ixgbe driver had a watchdog, the
-watchdog fired and notified that something was wrong.
-
-This patch adds a function, check_vectors(), to compare the number of vectors
-on the CPU going down and compares it to the number of vectors available on
-the system. If there aren't enough vectors for the CPU to go down, an
-error is returned and propogated back to userspace.
-
-v2: Do not need to look at percpu irqs
-v3: Need to check affinity to prevent counting of MSIs in IOAPIC Lowest
- Priority Mode
-v4: Additional changes suggested by Gong Chen.
-v5/v6/v7/v8: Updated comment text
-
-Signed-off-by: Prarit Bhargava <prarit@redhat.com>
-Link: http://lkml.kernel.org/r/1389613861-3853-1-git-send-email-prarit@redhat.com
-Reviewed-by: Gong Chen <gong.chen@linux.intel.com>
-Cc: Andi Kleen <ak@linux.intel.com>
-Cc: Michel Lespinasse <walken@google.com>
-Cc: Seiji Aguchi <seiji.aguchi@hds.com>
-Cc: Yang Zhang <yang.z.zhang@Intel.com>
-Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
-Cc: Janet Morgan <janet.morgan@intel.com>
-Cc: Tony Luck <tony.luck@intel.com>
-Cc: Ruiv Wang <ruiv.wang@gmail.com>
-Cc: Gong Chen <gong.chen@linux.intel.com>
-Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
-Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-
----
- arch/x86/include/asm/irq.h | 1
- arch/x86/kernel/irq.c | 70 +++++++++++++++++++++++++++++++++++++++++++++
- arch/x86/kernel/smpboot.c | 6 +++
- 3 files changed, 77 insertions(+)
-
---- a/arch/x86/include/asm/irq.h
-+++ b/arch/x86/include/asm/irq.h
-@@ -25,6 +25,7 @@ extern void irq_ctx_init(int cpu);
-
- #ifdef CONFIG_HOTPLUG_CPU
- #include <linux/cpumask.h>
-+extern int check_irq_vectors_for_cpu_disable(void);
- extern void fixup_irqs(void);
- extern void irq_force_complete_move(int);
- #endif
---- a/arch/x86/kernel/irq.c
-+++ b/arch/x86/kernel/irq.c
-@@ -262,6 +262,76 @@ __visible void smp_trace_x86_platform_ip
- EXPORT_SYMBOL_GPL(vector_used_by_percpu_irq);
-
- #ifdef CONFIG_HOTPLUG_CPU
-+/*
-+ * This cpu is going to be removed and its vectors migrated to the remaining
-+ * online cpus. Check to see if there are enough vectors in the remaining cpus.
-+ * This function is protected by stop_machine().
-+ */
-+int check_irq_vectors_for_cpu_disable(void)
-+{
-+ int irq, cpu;
-+ unsigned int this_cpu, vector, this_count, count;
-+ struct irq_desc *desc;
-+ struct irq_data *data;
-+ struct cpumask affinity_new, online_new;
-+
-+ this_cpu = smp_processor_id();
-+ cpumask_copy(&online_new, cpu_online_mask);
-+ cpu_clear(this_cpu, online_new);
-+
-+ this_count = 0;
-+ for (vector = FIRST_EXTERNAL_VECTOR; vector < NR_VECTORS; vector++) {
-+ irq = __this_cpu_read(vector_irq[vector]);
-+ if (irq >= 0) {
-+ desc = irq_to_desc(irq);
-+ data = irq_desc_get_irq_data(desc);
-+ cpumask_copy(&affinity_new, data->affinity);
-+ cpu_clear(this_cpu, affinity_new);
-+
-+ /* Do not count inactive or per-cpu irqs. */
-+ if (!irq_has_action(irq) || irqd_is_per_cpu(data))
-+ continue;
-+
-+ /*
-+ * A single irq may be mapped to multiple
-+ * cpu's vector_irq[] (for example IOAPIC cluster
-+ * mode). In this case we have two
-+ * possibilities:
-+ *
-+ * 1) the resulting affinity mask is empty; that is
-+ * this the down'd cpu is the last cpu in the irq's
-+ * affinity mask, or
-+ *
-+ * 2) the resulting affinity mask is no longer
-+ * a subset of the online cpus but the affinity
-+ * mask is not zero; that is the down'd cpu is the
-+ * last online cpu in a user set affinity mask.
-+ */
-+ if (cpumask_empty(&affinity_new) ||
-+ !cpumask_subset(&affinity_new, &online_new))
-+ this_count++;
-+ }
-+ }
-+
-+ count = 0;
-+ for_each_online_cpu(cpu) {
-+ if (cpu == this_cpu)
-+ continue;
-+ for (vector = FIRST_EXTERNAL_VECTOR; vector < NR_VECTORS;
-+ vector++) {
-+ if (per_cpu(vector_irq, cpu)[vector] < 0)
-+ count++;
-+ }
-+ }
-+
-+ if (count < this_count) {
-+ pr_warn("CPU %d disable failed: CPU has %u vectors assigned and there are only %u available.\n",
-+ this_cpu, this_count, count);
-+ return -ERANGE;
-+ }
-+ return 0;
-+}
-+
- /* A cpu has been removed from cpu_online_mask. Reset irq affinities. */
- void fixup_irqs(void)
- {
---- a/arch/x86/kernel/smpboot.c
-+++ b/arch/x86/kernel/smpboot.c
-@@ -1310,6 +1310,12 @@ void cpu_disable_common(void)
-
- int native_cpu_disable(void)
- {
-+ int ret;
-+
-+ ret = check_irq_vectors_for_cpu_disable();
-+ if (ret)
-+ return ret;
-+
- clear_local_APIC();
-
- cpu_disable_common();
+++ /dev/null
-From d5a1c7e3fc38d9c7d629e1e47f32f863acbdec3d Mon Sep 17 00:00:00 2001
-From: Borislav Petkov <bp@alien8.de>
-Date: Sat, 20 Jul 2013 19:00:23 +0200
-Subject: rtc-cmos: Add an alarm disable quirk
-
-From: Borislav Petkov <bp@alien8.de>
-
-commit d5a1c7e3fc38d9c7d629e1e47f32f863acbdec3d upstream.
-
-41c7f7424259f ("rtc: Disable the alarm in the hardware (v2)") added the
-functionality to disable the RTC wake alarm when shutting down the box.
-
-However, there are at least two b0rked BIOSes we know about:
-
-https://bugzilla.novell.com/show_bug.cgi?id=812592
-https://bugzilla.novell.com/show_bug.cgi?id=805740
-
-where, when wakeup alarm is enabled in the BIOS, the machine reboots
-automatically right after shutdown, regardless of what wakeup time is
-programmed.
-
-Bisecting the issue lead to this patch so disable its functionality with
-a DMI quirk only for those boxes.
-
-Cc: Brecht Machiels <brecht@mos6581.org>
-Cc: Thomas Gleixner <tglx@linutronix.de>
-Cc: John Stultz <john.stultz@linaro.org>
-Cc: Rabin Vincent <rabin.vincent@stericsson.com>
-Signed-off-by: Borislav Petkov <bp@suse.de>
-[jstultz: Changed variable name for clarity, added extra dmi entry]
-Tested-by: Brecht Machiels <brecht@mos6581.org>
-Tested-by: Borislav Petkov <bp@suse.de>
-Signed-off-by: John Stultz <john.stultz@linaro.org>
-Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-
----
- drivers/rtc/rtc-cmos.c | 52 ++++++++++++++++++++++++++++++++++++++++++++++++-
- 1 file changed, 51 insertions(+), 1 deletion(-)
-
---- a/drivers/rtc/rtc-cmos.c
-+++ b/drivers/rtc/rtc-cmos.c
-@@ -34,11 +34,11 @@
- #include <linux/interrupt.h>
- #include <linux/spinlock.h>
- #include <linux/platform_device.h>
--#include <linux/mod_devicetable.h>
- #include <linux/log2.h>
- #include <linux/pm.h>
- #include <linux/of.h>
- #include <linux/of_platform.h>
-+#include <linux/dmi.h>
-
- /* this is for "generic access to PC-style RTC" using CMOS_READ/CMOS_WRITE */
- #include <asm-generic/rtc.h>
-@@ -377,6 +377,51 @@ static int cmos_set_alarm(struct device
- return 0;
- }
-
-+/*
-+ * Do not disable RTC alarm on shutdown - workaround for b0rked BIOSes.
-+ */
-+static bool alarm_disable_quirk;
-+
-+static int __init set_alarm_disable_quirk(const struct dmi_system_id *id)
-+{
-+ alarm_disable_quirk = true;
-+ pr_info("rtc-cmos: BIOS has alarm-disable quirk. ");
-+ pr_info("RTC alarms disabled\n");
-+ return 0;
-+}
-+
-+static const struct dmi_system_id rtc_quirks[] __initconst = {
-+ /* https://bugzilla.novell.com/show_bug.cgi?id=805740 */
-+ {
-+ .callback = set_alarm_disable_quirk,
-+ .ident = "IBM Truman",
-+ .matches = {
-+ DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
-+ DMI_MATCH(DMI_PRODUCT_NAME, "4852570"),
-+ },
-+ },
-+ /* https://bugzilla.novell.com/show_bug.cgi?id=812592 */
-+ {
-+ .callback = set_alarm_disable_quirk,
-+ .ident = "Gigabyte GA-990XA-UD3",
-+ .matches = {
-+ DMI_MATCH(DMI_SYS_VENDOR,
-+ "Gigabyte Technology Co., Ltd."),
-+ DMI_MATCH(DMI_PRODUCT_NAME, "GA-990XA-UD3"),
-+ },
-+ },
-+ /* http://permalink.gmane.org/gmane.linux.kernel/1604474 */
-+ {
-+ .callback = set_alarm_disable_quirk,
-+ .ident = "Toshiba Satellite L300",
-+ .matches = {
-+ DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
-+ DMI_MATCH(DMI_PRODUCT_NAME, "Satellite L300"),
-+ },
-+ },
-+ {}
-+};
-+
- static int cmos_alarm_irq_enable(struct device *dev, unsigned int enabled)
- {
- struct cmos_rtc *cmos = dev_get_drvdata(dev);
-@@ -385,6 +430,9 @@ static int cmos_alarm_irq_enable(struct
- if (!is_valid_irq(cmos->irq))
- return -EINVAL;
-
-+ if (alarm_disable_quirk)
-+ return 0;
-+
- spin_lock_irqsave(&rtc_lock, flags);
-
- if (enabled)
-@@ -1157,6 +1205,8 @@ static int __init cmos_init(void)
- platform_driver_registered = true;
- }
-
-+ dmi_check_system(rtc_quirks);
-+
- if (retval == 0)
- return 0;
-
x86-x32-correct-invalid-use-of-user-timespec-in-the-kernel.patch
xen-pci-fix-build-on-non-x86.patch
x86-efi-fix-off-by-one-bug-in-efi-boot-services-reservation.patch
-x86-add-check-for-number-of-available-vectors-before-cpu-down.patch
kvm-x86-limit-pit-timer-frequency.patch
x86-kvm-cache-the-base-of-the-kvm-cpuid-leaves.patch
x86-kvm-correctly-access-the-kvm_cpuid_features-leaf-at-0x40000101.patch
kvm-s390-ioeventfd-ignore-leftmost-bits.patch
s390-uapi-fix-struct-statfs64-definition.patch
parport-parport_pc-remove-double-pci-id-for-netmos.patch
-rtc-cmos-add-an-alarm-disable-quirk.patch
rtc-max8907-weekday-encoding-fixes.patch
misc-mic-bug-fix-for-interrupt-acknowledgement-in-msi-intx-case.patch
pinctrl-sunxi-honor-gpio-output-initial-vaules.patch
+++ /dev/null
-From da6139e49c7cb0f4251265cb5243b8d220adb48d Mon Sep 17 00:00:00 2001
-From: Prarit Bhargava <prarit@redhat.com>
-Date: Mon, 13 Jan 2014 06:51:01 -0500
-Subject: x86: Add check for number of available vectors before CPU down
-
-From: Prarit Bhargava <prarit@redhat.com>
-
-commit da6139e49c7cb0f4251265cb5243b8d220adb48d upstream.
-
-Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=64791
-
-When a cpu is downed on a system, the irqs on the cpu are assigned to
-other cpus. It is possible, however, that when a cpu is downed there
-aren't enough free vectors on the remaining cpus to account for the
-vectors from the cpu that is being downed.
-
-This results in an interesting "overflow" condition where irqs are
-"assigned" to a CPU but are not handled.
-
-For example, when downing cpus on a 1-64 logical processor system:
-
-<snip>
-[ 232.021745] smpboot: CPU 61 is now offline
-[ 238.480275] smpboot: CPU 62 is now offline
-[ 245.991080] ------------[ cut here ]------------
-[ 245.996270] WARNING: CPU: 0 PID: 0 at net/sched/sch_generic.c:264 dev_watchdog+0x246/0x250()
-[ 246.005688] NETDEV WATCHDOG: p786p1 (ixgbe): transmit queue 0 timed out
-[ 246.013070] Modules linked in: lockd sunrpc iTCO_wdt iTCO_vendor_support sb_edac ixgbe microcode e1000e pcspkr joydev edac_core lpc_ich ioatdma ptp mdio mfd_core i2c_i801 dca pps_core i2c_core wmi acpi_cpufreq isci libsas scsi_transport_sas
-[ 246.037633] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 3.12.0+ #14
-[ 246.044451] Hardware name: Intel Corporation S4600LH ........../SVRBD-ROW_T, BIOS SE5C600.86B.01.08.0003.022620131521 02/26/2013
-[ 246.057371] 0000000000000009 ffff88081fa03d40 ffffffff8164fbf6 ffff88081fa0ee48
-[ 246.065728] ffff88081fa03d90 ffff88081fa03d80 ffffffff81054ecc ffff88081fa13040
-[ 246.074073] 0000000000000000 ffff88200cce0000 0000000000000040 0000000000000000
-[ 246.082430] Call Trace:
-[ 246.085174] <IRQ> [<ffffffff8164fbf6>] dump_stack+0x46/0x58
-[ 246.091633] [<ffffffff81054ecc>] warn_slowpath_common+0x8c/0xc0
-[ 246.098352] [<ffffffff81054fb6>] warn_slowpath_fmt+0x46/0x50
-[ 246.104786] [<ffffffff815710d6>] dev_watchdog+0x246/0x250
-[ 246.110923] [<ffffffff81570e90>] ? dev_deactivate_queue.constprop.31+0x80/0x80
-[ 246.119097] [<ffffffff8106092a>] call_timer_fn+0x3a/0x110
-[ 246.125224] [<ffffffff8106280f>] ? update_process_times+0x6f/0x80
-[ 246.132137] [<ffffffff81570e90>] ? dev_deactivate_queue.constprop.31+0x80/0x80
-[ 246.140308] [<ffffffff81061db0>] run_timer_softirq+0x1f0/0x2a0
-[ 246.146933] [<ffffffff81059a80>] __do_softirq+0xe0/0x220
-[ 246.152976] [<ffffffff8165fedc>] call_softirq+0x1c/0x30
-[ 246.158920] [<ffffffff810045f5>] do_softirq+0x55/0x90
-[ 246.164670] [<ffffffff81059d35>] irq_exit+0xa5/0xb0
-[ 246.170227] [<ffffffff8166062a>] smp_apic_timer_interrupt+0x4a/0x60
-[ 246.177324] [<ffffffff8165f40a>] apic_timer_interrupt+0x6a/0x70
-[ 246.184041] <EOI> [<ffffffff81505a1b>] ? cpuidle_enter_state+0x5b/0xe0
-[ 246.191559] [<ffffffff81505a17>] ? cpuidle_enter_state+0x57/0xe0
-[ 246.198374] [<ffffffff81505b5d>] cpuidle_idle_call+0xbd/0x200
-[ 246.204900] [<ffffffff8100b7ae>] arch_cpu_idle+0xe/0x30
-[ 246.210846] [<ffffffff810a47b0>] cpu_startup_entry+0xd0/0x250
-[ 246.217371] [<ffffffff81646b47>] rest_init+0x77/0x80
-[ 246.223028] [<ffffffff81d09e8e>] start_kernel+0x3ee/0x3fb
-[ 246.229165] [<ffffffff81d0989f>] ? repair_env_string+0x5e/0x5e
-[ 246.235787] [<ffffffff81d095a5>] x86_64_start_reservations+0x2a/0x2c
-[ 246.242990] [<ffffffff81d0969f>] x86_64_start_kernel+0xf8/0xfc
-[ 246.249610] ---[ end trace fb74fdef54d79039 ]---
-[ 246.254807] ixgbe 0000:c2:00.0 p786p1: initiating reset due to tx timeout
-[ 246.262489] ixgbe 0000:c2:00.0 p786p1: Reset adapter
-Last login: Mon Nov 11 08:35:14 from 10.18.17.119
-[root@(none) ~]# [ 246.792676] ixgbe 0000:c2:00.0 p786p1: detected SFP+: 5
-[ 249.231598] ixgbe 0000:c2:00.0 p786p1: NIC Link is Up 10 Gbps, Flow Control: RX/TX
-[ 246.792676] ixgbe 0000:c2:00.0 p786p1: detected SFP+: 5
-[ 249.231598] ixgbe 0000:c2:00.0 p786p1: NIC Link is Up 10 Gbps, Flow Control: RX/TX
-
-(last lines keep repeating. ixgbe driver is dead until module reload.)
-
-If the downed cpu has more vectors than are free on the remaining cpus on the
-system, it is possible that some vectors are "orphaned" even though they are
-assigned to a cpu. In this case, since the ixgbe driver had a watchdog, the
-watchdog fired and notified that something was wrong.
-
-This patch adds a function, check_vectors(), to compare the number of vectors
-on the CPU going down and compares it to the number of vectors available on
-the system. If there aren't enough vectors for the CPU to go down, an
-error is returned and propogated back to userspace.
-
-v2: Do not need to look at percpu irqs
-v3: Need to check affinity to prevent counting of MSIs in IOAPIC Lowest
- Priority Mode
-v4: Additional changes suggested by Gong Chen.
-v5/v6/v7/v8: Updated comment text
-
-Signed-off-by: Prarit Bhargava <prarit@redhat.com>
-Link: http://lkml.kernel.org/r/1389613861-3853-1-git-send-email-prarit@redhat.com
-Reviewed-by: Gong Chen <gong.chen@linux.intel.com>
-Cc: Andi Kleen <ak@linux.intel.com>
-Cc: Michel Lespinasse <walken@google.com>
-Cc: Seiji Aguchi <seiji.aguchi@hds.com>
-Cc: Yang Zhang <yang.z.zhang@Intel.com>
-Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
-Cc: Janet Morgan <janet.morgan@intel.com>
-Cc: Tony Luck <tony.luck@intel.com>
-Cc: Ruiv Wang <ruiv.wang@gmail.com>
-Cc: Gong Chen <gong.chen@linux.intel.com>
-Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
-Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-
----
- arch/x86/include/asm/irq.h | 1
- arch/x86/kernel/irq.c | 70 +++++++++++++++++++++++++++++++++++++++++++++
- arch/x86/kernel/smpboot.c | 6 +++
- 3 files changed, 77 insertions(+)
-
---- a/arch/x86/include/asm/irq.h
-+++ b/arch/x86/include/asm/irq.h
-@@ -25,6 +25,7 @@ extern void irq_ctx_init(int cpu);
-
- #ifdef CONFIG_HOTPLUG_CPU
- #include <linux/cpumask.h>
-+extern int check_irq_vectors_for_cpu_disable(void);
- extern void fixup_irqs(void);
- extern void irq_force_complete_move(int);
- #endif
---- a/arch/x86/kernel/irq.c
-+++ b/arch/x86/kernel/irq.c
-@@ -262,6 +262,76 @@ __visible void smp_trace_x86_platform_ip
- EXPORT_SYMBOL_GPL(vector_used_by_percpu_irq);
-
- #ifdef CONFIG_HOTPLUG_CPU
-+/*
-+ * This cpu is going to be removed and its vectors migrated to the remaining
-+ * online cpus. Check to see if there are enough vectors in the remaining cpus.
-+ * This function is protected by stop_machine().
-+ */
-+int check_irq_vectors_for_cpu_disable(void)
-+{
-+ int irq, cpu;
-+ unsigned int this_cpu, vector, this_count, count;
-+ struct irq_desc *desc;
-+ struct irq_data *data;
-+ struct cpumask affinity_new, online_new;
-+
-+ this_cpu = smp_processor_id();
-+ cpumask_copy(&online_new, cpu_online_mask);
-+ cpu_clear(this_cpu, online_new);
-+
-+ this_count = 0;
-+ for (vector = FIRST_EXTERNAL_VECTOR; vector < NR_VECTORS; vector++) {
-+ irq = __this_cpu_read(vector_irq[vector]);
-+ if (irq >= 0) {
-+ desc = irq_to_desc(irq);
-+ data = irq_desc_get_irq_data(desc);
-+ cpumask_copy(&affinity_new, data->affinity);
-+ cpu_clear(this_cpu, affinity_new);
-+
-+ /* Do not count inactive or per-cpu irqs. */
-+ if (!irq_has_action(irq) || irqd_is_per_cpu(data))
-+ continue;
-+
-+ /*
-+ * A single irq may be mapped to multiple
-+ * cpu's vector_irq[] (for example IOAPIC cluster
-+ * mode). In this case we have two
-+ * possibilities:
-+ *
-+ * 1) the resulting affinity mask is empty; that is
-+ * this the down'd cpu is the last cpu in the irq's
-+ * affinity mask, or
-+ *
-+ * 2) the resulting affinity mask is no longer
-+ * a subset of the online cpus but the affinity
-+ * mask is not zero; that is the down'd cpu is the
-+ * last online cpu in a user set affinity mask.
-+ */
-+ if (cpumask_empty(&affinity_new) ||
-+ !cpumask_subset(&affinity_new, &online_new))
-+ this_count++;
-+ }
-+ }
-+
-+ count = 0;
-+ for_each_online_cpu(cpu) {
-+ if (cpu == this_cpu)
-+ continue;
-+ for (vector = FIRST_EXTERNAL_VECTOR; vector < NR_VECTORS;
-+ vector++) {
-+ if (per_cpu(vector_irq, cpu)[vector] < 0)
-+ count++;
-+ }
-+ }
-+
-+ if (count < this_count) {
-+ pr_warn("CPU %d disable failed: CPU has %u vectors assigned and there are only %u available.\n",
-+ this_cpu, this_count, count);
-+ return -ERANGE;
-+ }
-+ return 0;
-+}
-+
- /* A cpu has been removed from cpu_online_mask. Reset irq affinities. */
- void fixup_irqs(void)
- {
---- a/arch/x86/kernel/smpboot.c
-+++ b/arch/x86/kernel/smpboot.c
-@@ -1312,6 +1312,12 @@ void cpu_disable_common(void)
-
- int native_cpu_disable(void)
- {
-+ int ret;
-+
-+ ret = check_irq_vectors_for_cpu_disable();
-+ if (ret)
-+ return ret;
-+
- clear_local_APIC();
-
- cpu_disable_common();
+++ /dev/null
-From d5a1c7e3fc38d9c7d629e1e47f32f863acbdec3d Mon Sep 17 00:00:00 2001
-From: Borislav Petkov <bp@alien8.de>
-Date: Sat, 20 Jul 2013 19:00:23 +0200
-Subject: rtc-cmos: Add an alarm disable quirk
-
-From: Borislav Petkov <bp@alien8.de>
-
-commit d5a1c7e3fc38d9c7d629e1e47f32f863acbdec3d upstream.
-
-41c7f7424259f ("rtc: Disable the alarm in the hardware (v2)") added the
-functionality to disable the RTC wake alarm when shutting down the box.
-
-However, there are at least two b0rked BIOSes we know about:
-
-https://bugzilla.novell.com/show_bug.cgi?id=812592
-https://bugzilla.novell.com/show_bug.cgi?id=805740
-
-where, when wakeup alarm is enabled in the BIOS, the machine reboots
-automatically right after shutdown, regardless of what wakeup time is
-programmed.
-
-Bisecting the issue lead to this patch so disable its functionality with
-a DMI quirk only for those boxes.
-
-Cc: Brecht Machiels <brecht@mos6581.org>
-Cc: Thomas Gleixner <tglx@linutronix.de>
-Cc: John Stultz <john.stultz@linaro.org>
-Cc: Rabin Vincent <rabin.vincent@stericsson.com>
-Signed-off-by: Borislav Petkov <bp@suse.de>
-[jstultz: Changed variable name for clarity, added extra dmi entry]
-Tested-by: Brecht Machiels <brecht@mos6581.org>
-Tested-by: Borislav Petkov <bp@suse.de>
-Signed-off-by: John Stultz <john.stultz@linaro.org>
-Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-
----
- drivers/rtc/rtc-cmos.c | 52 ++++++++++++++++++++++++++++++++++++++++++++++++-
- 1 file changed, 51 insertions(+), 1 deletion(-)
-
---- a/drivers/rtc/rtc-cmos.c
-+++ b/drivers/rtc/rtc-cmos.c
-@@ -34,11 +34,11 @@
- #include <linux/interrupt.h>
- #include <linux/spinlock.h>
- #include <linux/platform_device.h>
--#include <linux/mod_devicetable.h>
- #include <linux/log2.h>
- #include <linux/pm.h>
- #include <linux/of.h>
- #include <linux/of_platform.h>
-+#include <linux/dmi.h>
-
- /* this is for "generic access to PC-style RTC" using CMOS_READ/CMOS_WRITE */
- #include <asm-generic/rtc.h>
-@@ -377,6 +377,51 @@ static int cmos_set_alarm(struct device
- return 0;
- }
-
-+/*
-+ * Do not disable RTC alarm on shutdown - workaround for b0rked BIOSes.
-+ */
-+static bool alarm_disable_quirk;
-+
-+static int __init set_alarm_disable_quirk(const struct dmi_system_id *id)
-+{
-+ alarm_disable_quirk = true;
-+ pr_info("rtc-cmos: BIOS has alarm-disable quirk. ");
-+ pr_info("RTC alarms disabled\n");
-+ return 0;
-+}
-+
-+static const struct dmi_system_id rtc_quirks[] __initconst = {
-+ /* https://bugzilla.novell.com/show_bug.cgi?id=805740 */
-+ {
-+ .callback = set_alarm_disable_quirk,
-+ .ident = "IBM Truman",
-+ .matches = {
-+ DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
-+ DMI_MATCH(DMI_PRODUCT_NAME, "4852570"),
-+ },
-+ },
-+ /* https://bugzilla.novell.com/show_bug.cgi?id=812592 */
-+ {
-+ .callback = set_alarm_disable_quirk,
-+ .ident = "Gigabyte GA-990XA-UD3",
-+ .matches = {
-+ DMI_MATCH(DMI_SYS_VENDOR,
-+ "Gigabyte Technology Co., Ltd."),
-+ DMI_MATCH(DMI_PRODUCT_NAME, "GA-990XA-UD3"),
-+ },
-+ },
-+ /* http://permalink.gmane.org/gmane.linux.kernel/1604474 */
-+ {
-+ .callback = set_alarm_disable_quirk,
-+ .ident = "Toshiba Satellite L300",
-+ .matches = {
-+ DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
-+ DMI_MATCH(DMI_PRODUCT_NAME, "Satellite L300"),
-+ },
-+ },
-+ {}
-+};
-+
- static int cmos_alarm_irq_enable(struct device *dev, unsigned int enabled)
- {
- struct cmos_rtc *cmos = dev_get_drvdata(dev);
-@@ -385,6 +430,9 @@ static int cmos_alarm_irq_enable(struct
- if (!is_valid_irq(cmos->irq))
- return -EINVAL;
-
-+ if (alarm_disable_quirk)
-+ return 0;
-+
- spin_lock_irqsave(&rtc_lock, flags);
-
- if (enabled)
-@@ -1166,6 +1214,8 @@ static int __init cmos_init(void)
- platform_driver_registered = true;
- }
-
-+ dmi_check_system(rtc_quirks);
-+
- if (retval == 0)
- return 0;
-
arm-at91-smc-bug-fix-in-sam9_smc_cs_read.patch
serial-add-support-for-200-v3-series-titan-card.patch
parport-parport_pc-remove-double-pci-id-for-netmos.patch
-rtc-cmos-add-an-alarm-disable-quirk.patch
asoc-adau1701-fix-adau1701_seroctl_word_len_16-constant.patch
alsa-rme9652-fix-a-missing-comma-in-channel_map_9636_ds.patch
alsa-enable-config_zone_dma-for-smaller-pci-dma-masks.patch
projects / thirdparty / kernel / stable-queue.git / commitdiff
