提交 · 22d3c0d63b1108af0b4ef1cfdad1f6ef0710da30 · openanolis / cloud-kernel

19 12月, 2016 26 次提交

x86/init: Fix a couple of comment typos · 22d3c0d6

由 Dmitry Torokhov 提交于 12月 09, 2016

Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>
Acked-by: NMarcos Paulo de Souza <marcos.souza.org@gmail.com>
Cc: linux-input@vger.kernel.org
Link: http://lkml.kernel.org/r/1481317061-31486-5-git-send-email-dmitry.torokhov@gmail.comSigned-off-by: NThomas Gleixner <tglx@linutronix.de>

22d3c0d6

x86/init: Remove i8042_detect() from platform ops · 32786fdc

由 Dmitry Torokhov 提交于 12月 09, 2016

Now that i8042 uses flag in legacy platform data, i8042_detect() is
no longer used and can be removed.
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>
Tested-by: NTakashi Iwai <tiwai@suse.de>
Acked-by: NMarcos Paulo de Souza <marcos.souza.org@gmail.com>
Cc: linux-input@vger.kernel.org
Link: http://lkml.kernel.org/r/1481317061-31486-4-git-send-email-dmitry.torokhov@gmail.comSigned-off-by: NThomas Gleixner <tglx@linutronix.de>

32786fdc

Input: i8042 - Trust firmware a bit more when probing on X86 · d79e141c

由 Dmitry Torokhov 提交于 12月 09, 2016

The error message "Can't read CTR while initializing i8042" appears on
Cherry Trail-based devices at each boot time:

i8042: PNP: No PS/2 controller found. Probing ports directly.
i8042: Can't read CTR while initializing i8042
i8042: probe of i8042 failed with error -5

This happens because we historically do not trust firmware on X86 and,
while noting that PNP does not show keyboard or mouse devices, we still
charge ahead and try to probe the controller. Let's relax this a bit and if
results of PNP probe agree with the results of platform
initialization/quirks conclude that there is, in fact, no i8042.

While at it, let's avoid using x86_platform.i8042_detect() and instead
abort execution early if platform indicates that it can not possibly have
i8042 (x86_platform.legacy.i8042 equals X86_LEGACY_I8042_PLATFORM_ABSENT).
Reported-and-tested-by: NTakashi Iwai <tiwai@suse.de>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>
Acked-by: NMarcos Paulo de Souza <marcos.souza.org@gmail.com>
Cc: linux-input@vger.kernel.org
Link: http://lkml.kernel.org/r/1481317061-31486-3-git-send-email-dmitry.torokhov@gmail.comSigned-off-by: NThomas Gleixner <tglx@linutronix.de>

d79e141c

x86/init: Add i8042 state to the platform data · 93ffa9a4

由 Dmitry Torokhov 提交于 12月 09, 2016

Add i8042 state to the platform data to help i8042 driver make decision
whether to probe for i8042 or not. We recognize 3 states: platform/subarch
ca not possible have i8042 (as is the case with Inrel MID platform),
firmware (such as ACPI) reports that i8042 is absent from the device,
or i8042 may be present and the driver should probe for it.

The intent is to allow i8042 driver abort initialization on x86 if PNP data
(absence of both keyboard and mouse PNP devices) agrees with firmware data.

It will also allow us to remove i8042_detect later.
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>
Tested-by: NTakashi Iwai <tiwai@suse.de>
Acked-by: NMarcos Paulo de Souza <marcos.souza.org@gmail.com>
Cc: linux-input@vger.kernel.org
Link: http://lkml.kernel.org/r/1481317061-31486-2-git-send-email-dmitry.torokhov@gmail.comSigned-off-by: NThomas Gleixner <tglx@linutronix.de>

93ffa9a4

x86/microcode/AMD: Use native_cpuid() in load_ucode_amd_bsp() · 2b4c9156

由 Boris Ostrovsky 提交于 12月 18, 2016

When CONFIG_PARAVIRT is selected, cpuid() becomes a call. Since
for 32-bit kernels load_ucode_amd_bsp() is executed before paging
is enabled the call cannot be completed (as kernel virtual addresses
are not reachable yet).

Use native_cpuid() instead which is an asm wrapper for the CPUID
instruction.
Signed-off-by: NBoris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: NBorislav Petkov <bp@suse.de>
Cc: Jürgen Gross <jgross@suse.com>
Link: http://lkml.kernel.org/r/1481906392-3847-1-git-send-email-boris.ostrovsky@oracle.com
Link: http://lkml.kernel.org/r/20161218164414.9649-5-bp@alien8.deSigned-off-by: NThomas Gleixner <tglx@linutronix.de>

2b4c9156

x86/microcode/AMD: Do not load when running on a hypervisor · a15a7535

由 Borislav Petkov 提交于 12月 18, 2016

Doing so is completely void of sense for multiple reasons so prevent
it. Set dis_ucode_ldr to true and thus disable the microcode loader by
default to address xen pv guests which execute the AP path but not the
BSP path.

By having it turned off by default, the APs won't run into the loader
either.

Also, check CPUID(1).ECX[31] which hypervisors set. Well almost, not the
xen pv one. That one gets the aforementioned "fix".

Also, improve the detection method by caching the final decision whether
to continue loading in dis_ucode_ldr and do it once on the BSP. The APs
then simply test that value.
Signed-off-by: NBorislav Petkov <bp@suse.de>
Tested-by: NJuergen Gross <jgross@suse.com>
Tested-by: NBoris Ostrovsky <boris.ostrovsky@oracle.com>
Acked-by: NJuergen Gross <jgross@suse.com>
Link: http://lkml.kernel.org/r/20161218164414.9649-4-bp@alien8.deSigned-off-by: NThomas Gleixner <tglx@linutronix.de>

a15a7535

x86/microcode/AMD: Sanitize apply_microcode_early_amd() · 200d3553

由 Borislav Petkov 提交于 12月 18, 2016

Make it simply return bool to denote whether it found a container or not
and return the pointer to the container and its size in the handed-in
container pointer instead, as returning a struct was just silly.
Signed-off-by: NBorislav Petkov <bp@suse.de>
Cc: Jürgen Gross <jgross@suse.com>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Link: http://lkml.kernel.org/r/20161218164414.9649-3-bp@alien8.deSigned-off-by: NThomas Gleixner <tglx@linutronix.de>

200d3553

x86/microcode/AMD: Make find_proper_container() sane again · 8feaa64a

由 Borislav Petkov 提交于 12月 18, 2016

Fixup signature and retvals, return the container struct through the
passed in pointer, not as a function return value.
Signed-off-by: NBorislav Petkov <bp@suse.de>
Cc: Jürgen Gross <jgross@suse.com>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Link: http://lkml.kernel.org/r/20161218164414.9649-2-bp@alien8.deSigned-off-by: NThomas Gleixner <tglx@linutronix.de>

8feaa64a

Merge tag 'rtc-4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux · b0b3a37b

由 Linus Torvalds 提交于 12月 18, 2016

Pull RTC updates from Alexandre Belloni:
  "Subsystem:
   - non-modular drivers are now explicitly non-modular

  New driver:
    - Epson Toyocom rtc-7301sf/dg

  Drivers:
   - cmos: reject unsupported alarm values wrt the RTC capabilities
   - ds1307: ACPI support
   - jz4740: DT support, jz4780 handling, can now be used as a system
     power controller
   - mcp795: many fixes, in particular proper month handling
   - twl: driver is now DT only"

* tag 'rtc-4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (31 commits)
  rtc: mcp795: Fix whitespace and indentation.
  rtc: mcp795: Prefer using the BIT() macro.
  rtc: mcp795: fix month write resetting date to 1.
  rtc: mcp795: fix time range difference between linux and RTC chip.
  rtc: mcp795: fix bitmask value for leap year (LP).
  rtc: mcp795: use bcd2bin/bin2bcd.
  rtc: add support for EPSON TOYOCOM RTC-7301SF/DG
  rtc: ds1307: Add ACPI support
  rtc: imxdi: (trivial) fix a typo
  rtc: ds1374: Merge conditional + WARN_ON()
  rtc: twl: make driver DT only
  rtc: twl: kill static variables
  rtc: fix typos in Kconfig
  rtc: jz4740: make the driver builtin only
  rtc: jz4740: remove unused EXPORT_SYMBOL
  Documentation: bindings: fix twl-rtc documentation
  rtc: Enable compile testing for Maxim and Samsung drivers
  MIPS: jz4740: Remove obsolete code
  MIPS: qi_lb60: Probe RTC driver from DT and use it as power controller
  MIPS: jz4740: DTS: Probe the jz4740-rtc driver from devicetree
  ...

b0b3a37b

rtc: mcp795: Fix whitespace and indentation. · d3e59259