The patch titled
revert x86_64-mm-try-multiple-timer-pins
has been removed from the -mm tree. Its filename was
revert-x86_64-mm-try-multiple-timer-pins.patch
This patch was dropped because it is obsolete
------------------------------------------------------
Subject: revert x86_64-mm-try-multiple-timer-pins
From: Andrew Morton <akpm@xxxxxxxx>
Causes early oopses on Rafael's nx6325.
Cc: Andi Kleen <ak@xxxxxxx>
Cc: "Rafael J. Wysocki" <rjw@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
Documentation/x86_64/boot-options.txt | 4
arch/x86_64/kernel/early-quirks.c | 5 +
arch/x86_64/kernel/io_apic.c | 99 +++++++++++++-----------
3 files changed, 64 insertions(+), 44 deletions(-)
diff -puN Documentation/x86_64/boot-options.txt~revert-x86_64-mm-try-multiple-timer-pins Documentation/x86_64/boot-options.txt
--- a/Documentation/x86_64/boot-options.txt~revert-x86_64-mm-try-multiple-timer-pins
+++ a/Documentation/x86_64/boot-options.txt
@@ -52,6 +52,10 @@ APICs
apicmaintimer. Useful when your PIT timer is totally
broken.
+ disable_8254_timer / enable_8254_timer
+ Enable interrupt 0 timer routing over the 8254 in addition to over
+ the IO-APIC. The kernel tries to set a sensible default.
+
Early Console
syntax: earlyprintk=vga
diff -puN arch/x86_64/kernel/early-quirks.c~revert-x86_64-mm-try-multiple-timer-pins arch/x86_64/kernel/early-quirks.c
--- a/arch/x86_64/kernel/early-quirks.c~revert-x86_64-mm-try-multiple-timer-pins
+++ a/arch/x86_64/kernel/early-quirks.c
@@ -61,6 +61,11 @@ static void nvidia_bugs(void)
static void ati_bugs(void)
{
+ if (timer_over_8254 == 1) {
+ timer_over_8254 = 0;
+ printk(KERN_INFO
+ "ATI board detected. Disabling timer routing over 8254.\n");
+ }
}
struct chipset {
diff -puN arch/x86_64/kernel/io_apic.c~revert-x86_64-mm-try-multiple-timer-pins arch/x86_64/kernel/io_apic.c
--- a/arch/x86_64/kernel/io_apic.c~revert-x86_64-mm-try-multiple-timer-pins
+++ a/arch/x86_64/kernel/io_apic.c
@@ -55,6 +55,10 @@ int sis_apic_bug; /* not actually suppor
static int no_timer_check;
+static int disable_timer_pin_1 __initdata;
+
+int timer_over_8254 __initdata = 1;
+
/* Where if anywhere is the i8259 connect in external int mode */
static struct { int pin, apic; } ioapic_i8259 = { -1, -1 };
@@ -350,6 +354,29 @@ static int __init disable_ioapic_setup(c
}
early_param("noapic", disable_ioapic_setup);
+/* Actually the next is obsolete, but keep it for paranoid reasons -AK */
+static int __init disable_timer_pin_setup(char *arg)
+{
+ disable_timer_pin_1 = 1;
+ return 1;
+}
+__setup("disable_timer_pin_1", disable_timer_pin_setup);
+
+static int __init setup_disable_8254_timer(char *s)
+{
+ timer_over_8254 = -1;
+ return 1;
+}
+static int __init setup_enable_8254_timer(char *s)
+{
+ timer_over_8254 = 2;
+ return 1;
+}
+
+__setup("disable_8254_timer", setup_disable_8254_timer);
+__setup("enable_8254_timer", setup_enable_8254_timer);
+
+
/*
* Find the IRQ entry number of a certain pin.
*/
@@ -771,8 +798,10 @@ void __setup_vector_irq(int cpu)
{
/* Initialize vector_irq on a new cpu */
/* This function must be called with vector_lock held */
+ unsigned long flags;
int irq, vector;
+
/* Mark the inuse vectors */
for (irq = 0; irq < NR_IRQ_VECTORS; ++irq) {
if (!cpu_isset(cpu, irq_domain[irq]))
@@ -1578,32 +1607,9 @@ static inline void unlock_ExtINT_logic(v
* a wide range of boards and BIOS bugs. Fortunately only the timer IRQ
* is so screwy. Thanks to Brian Perkins for testing/hacking this beast
* fanatically on his truly buggy board.
+ *
+ * FIXME: really need to revamp this for modern platforms only.
*/
-
-static int try_apic_pin(int apic, int pin, char *msg)
-{
- apic_printk(APIC_VERBOSE, KERN_INFO
- "..TIMER: trying over IO-APIC=%d PIN=%d %s\n",
- apic, pin, msg);
-
- /*
- * Ok, does IRQ0 through the IOAPIC work?
- */
- unmask_IO_APIC_irq(0);
- if (!no_timer_check && timer_irq_works()) {
- nmi_watchdog_default();
- if (nmi_watchdog == NMI_IO_APIC) {
- disable_8259A_irq(0);
- setup_nmi();
- enable_8259A_irq(0);
- }
- return 1;
- }
- clear_IO_APIC_pin(apic, pin);
- apic_printk(APIC_QUIET, KERN_ERR "..8254 timer didn't work\n");
- return 0;
-}
-
static inline void check_timer(void)
{
int apic1, pin1, apic2, pin2;
@@ -1625,33 +1631,38 @@ static inline void check_timer(void)
*/
apic_write(APIC_LVT0, APIC_LVT_MASKED | APIC_DM_EXTINT);
init_8259A(1);
+ if (timer_over_8254 > 0)
+ enable_8259A_irq(0);
pin1 = find_isa_irq_pin(0, mp_INT);
apic1 = find_isa_irq_apic(0, mp_INT);
pin2 = ioapic_i8259.pin;
apic2 = ioapic_i8259.apic;
- /* Do this first, otherwise we get double interrupts on ATI boards */
- if ((pin1 != -1) && try_apic_pin(pin1, apic1, "with 8259 IRQ0 disabled"))
- return;
+ apic_printk(APIC_VERBOSE,KERN_INFO "..TIMER: vector=0x%02X apic1=%d pin1=%d apic2=%d pin2=%d\n",
+ vector, apic1, pin1, apic2, pin2);
- /* Now try again with IRQ0 8259A enabled. */
- enable_8259A_irq(0);
- if (try_apic_pin(pin1, apic1, "with 8259 IRQ0 enabled"))
- return;
- disable_8259A_irq(0);
-
- /* Always try pin0 and pin2 on APIC 0 to handle buggy timer overrides
- on Nvidia boards */
- if (!(apic1 == 0 && pin1 == 0) &&
- try_apic_pin(0, 0, "fallback with 8259 IRQ0 disabled"))
- return;
- if (!(apic1 == 0 && pin1 == 2) &&
- try_apic_pin(0, 0, "fallback with 8259 IRQ0 disabled"))
- return;
+ if (pin1 != -1) {
+ /*
+ * Ok, does IRQ0 through the IOAPIC work?
+ */
+ unmask_IO_APIC_irq(0);
+ if (!no_timer_check && timer_irq_works()) {
+ nmi_watchdog_default();
+ if (nmi_watchdog == NMI_IO_APIC) {
+ disable_8259A_irq(0);
+ setup_nmi();
+ enable_8259A_irq(0);
+ }
+ if (disable_timer_pin_1 > 0)
+ clear_IO_APIC_pin(0, pin1);
+ return;
+ }
+ clear_IO_APIC_pin(apic1, pin1);
+ apic_printk(APIC_QUIET,KERN_ERR "..MP-BIOS bug: 8254 timer not "
+ "connected to IO-APIC\n");
+ }
- /* Then try pure 8259A routing */
- enable_8259A_irq(0);
apic_printk(APIC_VERBOSE,KERN_INFO "...trying to set up timer (IRQ0) "
"through the 8259A ... ");
if (pin2 != -1) {
_
Patches currently in -mm which might be from akpm@xxxxxxxx are
origin.patch
git-acpi.patch
video-sysfs-support-take-2-add-dev-argument-for-backlight_device_register.patch
acpi-asus-s3-resume-fix.patch
sony_apci-resume.patch
video-sysfs-support-take-2-add-dev-argument-for-backlight_device_register-sony_acpi-fix.patch
git-cpufreq-prep.patch
git-cpufreq.patch
git-powerpc.patch
fix-gregkh-driver-sound-device.patch
git-dvb.patch
git-dvb-fixup.patch
git-gfs2-nmw.patch
git-ia64.patch
git-input.patch
git-input-fixup.patch
git-libata-all.patch
via-pata-controller-xfer-fixes-fix.patch
git-mtd.patch
git-netdev-all.patch
git-netdev-all-fixup.patch
libphy-dont-do-that.patch
update-smc91x-driver-with-arm-versatile-board-info.patch
drivers-net-ns83820c-add-paramter-to-disable-auto.patch
git-net.patch
net-uninline-skb_put.patch
ioat-warning-fix.patch
tidy-gregkh-pci-pci-check-szhi-when-sz-is-0-when-64-bit-iomem-bigger-than-4g.patch
fix-gregkh-pci-pci-check-szhi-when-sz-is-0-when-64-bit-iomem-bigger-than-4g.patch
fix-2-gregkh-pci-pci-check-szhi-when-sz-is-0-when-64-bit-iomem-bigger-than-4g.patch
git-scsi-misc.patch
drivers-scsi-mca_53c9xc-save_flags-cli-removal.patch
nokia-e70-is-an-unusual-device.patch
git-watchdog.patch
pre-x86_64-mm-i386-reloc-abssym.patch
post-x86_64-mm-i386-reloc-abssym.patch
revert-x86_64-mm-try-multiple-timer-pins.patch
revert-x86_64-mm-try-multiple-timer-pins-wanring-fix.patch
arch-i386-kernel-io_apicc-handle-a-negative-return-value.patch
touchkit-ps-2-touchscreen-driver.patch
get-rid-of-zone_table.patch
new-scheme-to-preempt-swap-token-tidy.patch
balance_pdgat-cleanup.patch
add-numa-node-information-to-struct-device-tidy.patch
node-aware-skb-allocation-fix-for-device-tree-changes.patch
radix-tree-rcu-lockless-readside.patch
acx1xx-wireless-driver.patch
security-introduce-file-caps-tweaks.patch
security-introduce-file-caps-warning-fix.patch
swsusp-add-resume_offset-command-line-parameter-rev-2.patch
add-include-linux-freezerh-and-move-definitions-from-ueagle-fix.patch
cciss-set-sector_size-to-2048-for-performance-tidy.patch
deprecate-smbfs-in-favour-of-cifs.patch
edac-new-opteron-athlon64-memory-controller-driver.patch
kbuild-dont-put-temp-files-in-the-source-tree.patch
lockdep-annotate-nfs-nfsd-in-kernel-sockets-tidy.patch
drivers-add-lcd-support-3-Kconfig-fix.patch
probe_kernel_address-needs-to-do-set_fs.patch
slab-use-probe_kernel_address.patch
lockdep-spin_lock_irqsave_nested-fix.patch
lockdep-spin_lock_irqsave_nested-fix-2.patch
aio-use-prepare_to_wait.patch
exar-quad-port-serial-fix.patch
vfs_getattr-remove-dead-code.patch
ext3-uninline-large-functions.patch
ext4-uninline-large-functions.patch
uninline-module_put.patch
sleep-profiling-fixes.patch
sleep-profiling-fix.patch
debug-workqueue-locking-sanity-fix.patch
pcengines-wrap-led-support-fix.patch
driver-base-memoryc-remove-warnings-of.patch
remove-kernel-syscalls-x86_64-fix.patch
protect-ext2-ioctl-modifying-append_only-immutable-etc-with-i_mutex.patch
remove-hash_highmem.patch
elf-fix-kcore-note-size-calculation-fix.patch
reiserfs-add-missing-d-cache-flushing-tweak.patch
ext2-reservations.patch
ext2-reservations-fix-42.patch
ext2-reservations-fix-ext2_new_blocks-type.patch
pktcdvd-bio-write-congestion-using-blk_congestion_wait-fix.patch
bug-test-1.patch
fsstack-introduce-fsstack_copy_attrinode_-tidy.patch
log2-implement-a-general-integer-log2-facility-in-the-kernel-fix.patch
log2-implement-a-general-integer-log2-facility-in-the-kernel-vs-git-cryptodev.patch
log2-implement-a-general-integer-log2-facility-in-the-kernel-ppc-fix.patch
add-process_session-helper-routine-deprecate-old-field-tidy.patch
add-process_session-helper-routine-deprecate-old-field-fix-warnings.patch
add-process_session-helper-routine-deprecate-old-field-fix-warnings-2.patch
mxser-session-warning-fix.patch
tty-switch-to-ktermios-and-new-framework-warning-fix.patch
tty-switch-to-ktermios-bluetooth-fix.patch
tty_ioctl-use-termios-for-the-old-structure-and-termios2-fix.patch
char-istallion-correct-fail-paths-fix.patch
drivers-isdn-handcrafted-min-max-macro-removal-fix.patch
fault-injection-capabilities-infrastructure-tidy.patch
fault-injection-capabilities-infrastructure-tweaks.patch
fault-injection-Kconfig-cleanup.patch
fault-injection-stacktrace-filtering-kconfig-fix.patch
kernel-schedc-whitespace-cleanups-more.patch
swap_prefetch-vs-zoned-counters.patch
add-include-linux-freezerh-and-move-definitions-from-prefetch.patch
readahead-minmax_ra_pages.patch
readahead-sysctl-parameters.patch
make-copy_from_user_inatomic-not-zero-the-tail-on-i386-vs-reiser4.patch
resier4-add-include-linux-freezerh-and-move-definitions-from.patch
make-kmem_cache_destroy-return-void-reiser4.patch
reiser4-hardirq-include-fix.patch
reiser4-run-truncate_inode_pages-in-reiser4_delete_inode.patch
reiser4-get_sb_dev-fix.patch
reiser4-vs-zoned-allocator.patch
reiser4-temp-fix.patch
hpt3xx-rework-rate-filtering-tidy.patch
video-get-the-default-mode-from-the-right-database-fb-modedb-uses-wrong-default_mode-fix.patch
various-fbdev-files-mark-structs-fix.patch
md-allow-reads-that-have-bypassed-the-cache-to-be-retried-on-failure-fix.patch
statistics-infrastructure-fix-buffer-overflow-in-histogram-with-linear-tidy.patch
extend-notifier_call_chain-to-count-nr_calls-made.patch
define-and-use-new-eventscpu_lock_acquire-and-cpu_lock_release-fix.patch
gtod-persistent-clock-support-i386.patch
updated-hrtimers-state-tracking.patch
updated-i386-convert-to-clock-event-devices.patch
updated-i386-convert-to-clock-event-devices-fix.patch
updated-gtod-mark-tsc-unusable-for-highres-timers.patch
round_jiffies-infrastructure-fix.patch
clocksource-small-cleanup-2-fix.patch
kevent_user_wait-retval-fix.patch
kevent-v23-socket-notifications-fix-again.patch
kevent-timer-notifications-fix.patch
nr_blockdev_pages-in_interrupt-warning.patch
device-suspend-debug.patch
mutex-subsystem-synchro-test-module-fix.patch
slab-leaks3-default-y.patch
x86-kmap_atomic-debugging.patch
restore-rogue-readahead-printk.patch
put_bh-debug.patch
e1000-printk-warning-fixes.patch
acpi_format_exception-debug.patch
jmicron-warning-fix.patch
squash-ipc-warnings.patch
squash-udf-warnings.patch
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