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  1. 28 9月, 2017 1 次提交
  3. 26 9月, 2017 2 次提交
  5. 25 9月, 2017 12 次提交
  7. 11 9月, 2017 1 次提交
  9. 09 9月, 2017 1 次提交
  11. 31 8月, 2017 1 次提交
  13. 29 8月, 2017 4 次提交
  15. 23 6月, 2017 5 次提交
  17. 05 6月, 2017 2 次提交
  19. 15 4月, 2017 1 次提交
    • N
      x86/apic/timer: Set ->min_delta_ticks and ->max_delta_ticks · 747d04b3
      由 Nicolai Stange 提交于 
      In preparation for making the clockevents core NTP correction aware,
all clockevent device drivers must set ->min_delta_ticks and
->max_delta_ticks rather than ->min_delta_ns and ->max_delta_ns: a
clockevent device's rate is going to change dynamically and thus, the
ratio of ns to ticks ceases to stay invariant.

Make the x86 arch's apic clockevent driver initialize these fields
properly.

This patch alone doesn't introduce any change in functionality as the
clockevents core still looks exclusively at the (untouched) ->min_delta_ns
and ->max_delta_ns. As soon as this has changed, a followup patch will
purge the initialization of ->min_delta_ns and ->max_delta_ns from this
driver.

Cc: Ingo Molnar <mingo@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: Richard Cochran <richardcochran@gmail.com>
Cc: Prarit Bhargava <prarit@redhat.com>
Cc: Stephen Boyd <sboyd@codeaurora.org>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: x86@kernel.org
CC: Dou Liyang <douly.fnst@cn.fujitsu.com>
Cc: Gu Zheng <guz.fnst@cn.fujitsu.com>
Signed-off-by: NNicolai Stange <nicstange@gmail.com>
Signed-off-by: NJohn Stultz <john.stultz@linaro.org>
      747d04b3
  21. 14 3月, 2017 2 次提交
  23. 11 3月, 2017 1 次提交
    • D
      x86/acpi: Restore the order of CPU IDs · 2b85b3d2
      由 Dou Liyang 提交于 
      The following commits:

  f7c28833 ("x86/acpi: Enable acpi to register all possible cpus at
boot time") and 8f54969d ("x86/acpi: Introduce persistent storage
for cpuid <-> apicid mapping")

... registered all the possible CPUs at boot time via ACPI tables to
make the mapping of cpuid <-> apicid fixed. Both enabled and disabled
CPUs could have a logical CPU ID after boot time.

But, ACPI tables are unreliable. the number amd order of Local APIC
entries which depends on the firmware is often inconsistent with the
physical devices. Even if they are consistent, The disabled CPUs which
take up some logical CPU IDs will also make the order discontinuous.

Revert the part of disabled CPUs registration, keep the allocation
logic of logical CPU IDs and also keep some code location changes.
Signed-off-by: NDou Liyang <douly.fnst@cn.fujitsu.com>
Tested-by: NXiaolong Ye <xiaolong.ye@intel.com>
Cc: rjw@rjwysocki.net
Cc: linux-acpi@vger.kernel.org
Cc: guzheng1@huawei.com
Cc: izumi.taku@jp.fujitsu.com
Cc: lenb@kernel.org
Link: http://lkml.kernel.org/r/1488528147-2279-4-git-send-email-douly.fnst@cn.fujitsu.comSigned-off-by: NThomas Gleixner <tglx@linutronix.de>
      2b85b3d2
  25. 01 3月, 2017 2 次提交
  27. 07 2月, 2017 1 次提交
  29. 29 1月, 2017 1 次提交
    • I
      x86/boot/e820: Rename e820_reserve_resources*() to e820__reserve_resources*() · 1506c8dc
      由 Ingo Molnar 提交于 
      Also do some minor cleanups.

No change in functionality.

Cc: Alex Thorlton <athorlton@sgi.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Huang, Ying <ying.huang@intel.com>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Juergen Gross <jgross@suse.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Paul Jackson <pj@sgi.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rafael J. Wysocki <rjw@sisk.pl>
Cc: Tejun Heo <tj@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Wei Yang <richard.weiyang@gmail.com>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: NIngo Molnar <mingo@kernel.org>
      1506c8dc
  31. 09 1月, 2017 1 次提交
  33. 06 1月, 2017 1 次提交
  35. 05 1月, 2017 1 次提交
    • D
      x86/irq, trace: Add __irq_entry annotation to x86's platform IRQ handlers · c4158ff5
      由 Daniel Bristot de Oliveira 提交于 
      This patch adds the __irq_entry annotation to the default x86
platform IRQ handlers. ftrace's function_graph tracer uses the
__irq_entry annotation to notify the entry and return of IRQ
handlers.

For example, before the patch:
  354549.667252 |   3)  d..1              |  default_idle_call() {
  354549.667252 |   3)  d..1              |    arch_cpu_idle() {
  354549.667253 |   3)  d..1              |      default_idle() {
  354549.696886 |   3)  d..1              |        smp_trace_reschedule_interrupt() {
  354549.696886 |   3)  d..1              |          irq_enter() {
  354549.696886 |   3)  d..1              |            rcu_irq_enter() {

After the patch:
  366416.254476 |   3)  d..1              |    arch_cpu_idle() {
  366416.254476 |   3)  d..1              |      default_idle() {
  366416.261566 |   3)  d..1  ==========> |
  366416.261566 |   3)  d..1              |        smp_trace_reschedule_interrupt() {
  366416.261566 |   3)  d..1              |          irq_enter() {
  366416.261566 |   3)  d..1              |            rcu_irq_enter() {

KASAN also uses this annotation. The smp_apic_timer_interrupt()
was already annotated.
Signed-off-by: NDaniel Bristot de Oliveira <bristot@redhat.com>
Acked-by: NSteven Rostedt (VMware) <rostedt@goodmis.org>
Cc: Aaron Lu <aaron.lu@intel.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Baoquan He <bhe@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Claudio Fontana <claudio.fontana@huawei.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: Dou Liyang <douly.fnst@cn.fujitsu.com>
Cc: Gu Zheng <guz.fnst@cn.fujitsu.com>
Cc: Hidehiro Kawai <hidehiro.kawai.ez@hitachi.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Nicolai Stange <nicstange@gmail.com>
Cc: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Wanpeng Li <wanpeng.li@hotmail.com>
Cc: linux-edac@vger.kernel.org
Link: http://lkml.kernel.org/r/059fdf437c2f0c09b13c18c8fe4e69999d3ffe69.1483528431.git.bristot@redhat.comSigned-off-by: NIngo Molnar <mingo@kernel.org>
      c4158ff5