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  1. 26 6月, 2013 5 次提交
  3. 24 6月, 2013 3 次提交
    • A
      ARM: mxs: don't select HAVE_PWM · ab182463
      由 Arnd Bergmann 提交于 
      The HAVE_PWM symbol is only for legacy platforms that provide
the PWM API without using the generic framework. MXS actually
uses that framework, and selecting the symbol anyway might
cause build errors like

drivers/built-in.o: In function `pwm_beeper_resume':
:(.text+0x1f4fc0): undefined reference to `pwm_config'
:(.text+0x1f4fc8): undefined reference to `pwm_enable'
drivers/built-in.o: In function `pwm_beeper_suspend':
:(.text+0x1f4ffc): undefined reference to `pwm_disable'

when CONFIG_PWM is disabled.
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
Cc: Shawn Guo <shawn.guo@linaro.org>
      ab182463
    • A
      ARM: mxs: stub out mxs_pm_init for !CONFIG_PM · 7a9caf59
      由 Arnd Bergmann 提交于 
      When building a kernel without CONFIG_PM, we get a link
error from referencing mxs_pm_init in the machine
descriptor. This defines a macro to NULL for that case.
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
Acked-by: NShawn Guo <shawn.guo@linaro.org>
      7a9caf59
    • E
      ARM: mvebu: fix length of ethernet registers in mv78260 dtsi · cdd8e498
      由 Ezequiel Garcia 提交于 
      The length of the registers area for the Marvell 370/XP Ethernet controller
was incorrect in the .dtsi: 0x2500, while it should have been 0x4000.
This problem wasn't noticed because there used to be a static mapping for
all the MMIO register region set up by ->map_io().

The register length was fixed in all the other device tree files,
except from the armada-xp-mv78260.dtsi, in the following commit:

  commit cf8088c5
  Author: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
  Date:   Tue May 21 12:33:27 2013 +0200

    arm: mvebu: fix length of Ethernet registers area in .dtsi

This commit fixes a kernel panic in mvneta_probe(), when the kernel
tries to access the unmapped registers:

[  163.639092] mvneta d0070000.ethernet eth0: mac: 6e:3c:4f:87:17:2e
[  163.646962] mvneta d0074000.ethernet eth1: mac: 6a:04:4e:6f:f5:ef
[  163.654853] mvneta d0030000.ethernet eth2: mac: 2a:99:19:19:fc:4c
[  163.661258] Unable to handle kernel paging request at virtual address f011bcf0
[  163.668523] pgd = c0004000
[  163.671237] [f011bcf0] *pgd=2f006811, *pte=00000000, *ppte=00000000
[  163.677565] Internal error: Oops: 807 [#1] SMP ARM
[  163.682370] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 3.10.0-rc6-01850-gba0682e #11
[  163.690046] task: ef04c000 ti: ef03e000 task.ti: ef03e000
[  163.695467] PC is at mvneta_probe+0x34c/0xabc
[...]
Signed-off-by: NEzequiel Garcia <ezequiel.garcia@free-electrons.com>
Acked-by: NThomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: NJason Cooper <jason@lakedaemon.net>
      cdd8e498
  5. 21 6月, 2013 2 次提交
  7. 20 6月, 2013 1 次提交
  9. 18 6月, 2013 2 次提交
  11. 13 6月, 2013 3 次提交
  13. 12 6月, 2013 7 次提交
  15. 08 6月, 2013 2 次提交
    • D
      ARM: exynos: add debug_ll_io_init() call in exynos_init_io() · 9c1fcdcc
      由 Doug Anderson 提交于 
      If the early MMU mapping of the UART happens to get booted out of the
TLB between the start of paging_init() and when we finally re-add the
UART at the very end of s3c_init_cpu(), we'll get a hang at bootup if
we've got early_printk enabled.  Avoid this hang by calling
debug_ll_io_init() early.

Without this patch, you can reliably reproduce a hang when early
printk is enabled by adding flush_tlb_all() at the start of
exynos_init_io().  After this patch the hang goes away.
Signed-off-by: NDoug Anderson <dianders@chromium.org>
Acked-by: NKukjin Kim <kgene.kim@samsung.com>
Signed-off-by: NOlof Johansson <olof@lixom.net>
      9c1fcdcc
    • T
      ARM: EXYNOS: uncompress - print debug messages if DEBUG_LL is defined · 437d8ac5
      由 Tushar Behera 提交于 
      Printing low-level debug messages make an assumption that the specified
UART port has been preconfigured by the bootloader. Incorrectly
specified UART port results in system getting stalled while printing the
message "Uncompressing Linux... done, booting the kernel"
This UART port number is specified through S3C_LOWLEVEL_UART_PORT. Since
the UART port might different for different board, it is not possible to
specify it correctly for every board that use a common defconfig file.

Calling this print subroutine only when DEBUG_LL fixes the problem. By
disabling DEBUG_LL in default config file, we would be able to boot
multiple boards with different default UART ports.

With this current approach, we miss the print "Uncompressing Linux...
done, booting the kernel." when DEBUG_LL is not defined.
Signed-off-by: NTushar Behera <tushar.behera@linaro.org>
Signed-off-by: NOlof Johansson <olof@lixom.net>
      437d8ac5
  17. 06 6月, 2013 6 次提交
    • J
      MIPS: ralink: add missing SZ_1M multiplier · cdfce539
      由 John Crispin 提交于 
      On RT5350 the memory size is set to Bytes and not MegaBytes due to a missing
multiplier.
Signed-off-by: NJohn Crispin <blogic@openwrt.org>
Cc: John Crispin <blogic@openwrt.org>
Patchwork: https://patchwork.linux-mips.org/patch/5378/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
      cdfce539
    • R
      MIPS: Compat: Fix cputime_to_timeval() arguments in compat binfmt_elf. · 7b741aa4
      由 Ralf Baechle 提交于 
      cputime_to_timeval() takes a struct timeval *as its second argument but
a struct compat_timeval * will be passed resulting in:

  CC      arch/mips/kernel/binfmt_elfn32.o
In file included from arch/mips/kernel/binfmt_elfn32.c:122:0:
arch/mips/kernel/../../../fs/binfmt_elf.c: In function ‘fill_prstatus’:
arch/mips/kernel/../../../fs/binfmt_elf.c:1330:3: warning: passing argument 2 of ‘cputime_to_timeval’ from incompatible pointer type [enabled by default]
In file included from include/asm-generic/cputime.h:12:0,
                 from /home/ralf/src/linux/linux-mips/arch/mips/include/asm/cputime.h:4,
                 from include/linux/sched.h:28,
                 from include/linux/ptrace.h:5,
                 from include/uapi/linux/elfcore.h:7,
                 from include/linux/elfcore.h:7,
                 from arch/mips/kernel/binfmt_elfn32.c:55:
include/asm-generic/cputime_nsecs.h:92:91: note: expected ‘struct timeval *’ but argument is of type ‘struct compat_timeval *’
In file included from arch/mips/kernel/binfmt_elfn32.c:122:0:
arch/mips/kernel/../../../fs/binfmt_elf.c:1331:3: warning: passing argument 2 of ‘cputime_to_timeval’ from incompatible pointer type [enabled by default]
In file included from include/asm-generic/cputime.h:12:0,
                 from /home/ralf/src/linux/linux-mips/arch/mips/include/asm/cputime.h:4,
                 from include/linux/sched.h:28,
                 from include/linux/ptrace.h:5,
                 from include/uapi/linux/elfcore.h:7,
                 from include/linux/elfcore.h:7,
                 from arch/mips/kernel/binfmt_elfn32.c:55:
include/asm-generic/cputime_nsecs.h:92:91: note: expected ‘struct timeval *’ but argument is of type ‘struct compat_timeval *’
In file included from arch/mips/kernel/binfmt_elfn32.c:122:0:
arch/mips/kernel/../../../fs/binfmt_elf.c:1336:3: warning: passing argument 2 of ‘cputime_to_timeval’ from incompatible pointer type [enabled by default]
In file included from include/asm-generic/cputime.h:12:0,
                 from /home/ralf/src/linux/linux-mips/arch/mips/include/asm/cputime.h:4,
                 from include/linux/sched.h:28,
                 from include/linux/ptrace.h:5,
                 from include/uapi/linux/elfcore.h:7,
                 from include/linux/elfcore.h:7,
                 from arch/mips/kernel/binfmt_elfn32.c:55:
include/asm-generic/cputime_nsecs.h:92:91: note: expected ‘struct timeval *’ but argument is of type ‘struct compat_timeval *’
In file included from arch/mips/kernel/binfmt_elfn32.c:122:0:
arch/mips/kernel/../../../fs/binfmt_elf.c:1337:3: warning: passing argument 2 of ‘cputime_to_timeval’ from incompatible pointer type [enabled by default]
In file included from include/asm-generic/cputime.h:12:0,
                 from /home/ralf/src/linux/linux-mips/arch/mips/include/asm/cputime.h:4,
                 from include/linux/sched.h:28,
                 from include/linux/ptrace.h:5,
                 from include/uapi/linux/elfcore.h:7,
                 from include/linux/elfcore.h:7,
                 from arch/mips/kernel/binfmt_elfn32.c:55:
include/asm-generic/cputime_nsecs.h:92:91: note: expected ‘struct timeval *’ but argument is of type ‘struct compat_timeval *’
In file included from arch/mips/kernel/binfmt_elfn32.c:122:0:
arch/mips/kernel/../../../fs/binfmt_elf.c:1339:2: warning: passing argument 2 of ‘cputime_to_timeval’ from incompatible pointer type [enabled by default]
In file included from include/asm-generic/cputime.h:12:0,
                 from /home/ralf/src/linux/linux-mips/arch/mips/include/asm/cputime.h:4,
                 from include/linux/sched.h:28,
                 from include/linux/ptrace.h:5,
                 from include/uapi/linux/elfcore.h:7,
                 from include/linux/elfcore.h:7,
                 from arch/mips/kernel/binfmt_elfn32.c:55:
include/asm-generic/cputime_nsecs.h:92:91: note: expected ‘struct timeval *’ but argument is of type ‘struct compat_timeval *’
In file included from arch/mips/kernel/binfmt_elfn32.c:122:0:
arch/mips/kernel/../../../fs/binfmt_elf.c:1340:2: warning: passing argument 2 of ‘cputime_to_timeval’ from incompatible pointer type [enabled by default]
In file included from include/asm-generic/cputime.h:12:0,
                 from /home/ralf/src/linux/linux-mips/arch/mips/include/asm/cputime.h:4,
                 from include/linux/sched.h:28,
                 from include/linux/ptrace.h:5,
                 from include/uapi/linux/elfcore.h:7,
                 from include/linux/elfcore.h:7,
                 from arch/mips/kernel/binfmt_elfn32.c:55:
include/asm-generic/cputime_nsecs.h:92:91: note: expected ‘struct timeval *’ but argument is of type ‘struct compat_timeval *’
  AS      arch/mips/kernel/scall64-n32.o
  CC      arch/mips/kernel/signal_n32.o
  CC      arch/mips/kernel/binfmt_elfo32.o
In file included from arch/mips/kernel/binfmt_elfo32.c:165:0:
arch/mips/kernel/../../../fs/binfmt_elf.c: In function ‘fill_prstatus’:
arch/mips/kernel/../../../fs/binfmt_elf.c:1330:3: warning: passing argument 2 of ‘cputime_to_timeval’ from incompatible pointer type [enabled by default]
In file included from include/asm-generic/cputime.h:12:0,
                 from /home/ralf/src/linux/linux-mips/arch/mips/include/asm/cputime.h:4,
                 from include/linux/sched.h:28,
                 from include/linux/ptrace.h:5,
                 from include/uapi/linux/elfcore.h:7,
                 from include/linux/elfcore.h:7,
                 from arch/mips/kernel/binfmt_elfo32.c:78:
include/asm-generic/cputime_nsecs.h:92:91: note: expected ‘struct timeval *’ but argument is of type ‘struct compat_timeval *’
In file included from arch/mips/kernel/binfmt_elfo32.c:165:0:
arch/mips/kernel/../../../fs/binfmt_elf.c:1331:3: warning: passing argument 2 of ‘cputime_to_timeval’ from incompatible pointer type [enabled by default]
In file included from include/asm-generic/cputime.h:12:0,
                 from /home/ralf/src/linux/linux-mips/arch/mips/include/asm/cputime.h:4,
                 from include/linux/sched.h:28,
                 from include/linux/ptrace.h:5,
                 from include/uapi/linux/elfcore.h:7,
                 from include/linux/elfcore.h:7,
                 from arch/mips/kernel/binfmt_elfo32.c:78:
include/asm-generic/cputime_nsecs.h:92:91: note: expected ‘struct timeval *’ but argument is of type ‘struct compat_timeval *’
In file included from arch/mips/kernel/binfmt_elfo32.c:165:0:
arch/mips/kernel/../../../fs/binfmt_elf.c:1336:3: warning: passing argument 2 of ‘cputime_to_timeval’ from incompatible pointer type [enabled by default]
In file included from include/asm-generic/cputime.h:12:0,
                 from /home/ralf/src/linux/linux-mips/arch/mips/include/asm/cputime.h:4,
                 from include/linux/sched.h:28,
                 from include/linux/ptrace.h:5,
                 from include/uapi/linux/elfcore.h:7,
                 from include/linux/elfcore.h:7,
                 from arch/mips/kernel/binfmt_elfo32.c:78:
include/asm-generic/cputime_nsecs.h:92:91: note: expected ‘struct timeval *’ but argument is of type ‘struct compat_timeval *’
In file included from arch/mips/kernel/binfmt_elfo32.c:165:0:
arch/mips/kernel/../../../fs/binfmt_elf.c:1337:3: warning: passing argument 2 of ‘cputime_to_timeval’ from incompatible pointer type [enabled by default]
In file included from include/asm-generic/cputime.h:12:0,
                 from /home/ralf/src/linux/linux-mips/arch/mips/include/asm/cputime.h:4,
                 from include/linux/sched.h:28,
                 from include/linux/ptrace.h:5,
                 from include/uapi/linux/elfcore.h:7,
                 from include/linux/elfcore.h:7,
                 from arch/mips/kernel/binfmt_elfo32.c:78:
include/asm-generic/cputime_nsecs.h:92:91: note: expected ‘struct timeval *’ but argument is of type ‘struct compat_timeval *’
In file included from arch/mips/kernel/binfmt_elfo32.c:165:0:
arch/mips/kernel/../../../fs/binfmt_elf.c:1339:2: warning: passing argument 2 of ‘cputime_to_timeval’ from incompatible pointer type [enabled by default]
In file included from include/asm-generic/cputime.h:12:0,
                 from /home/ralf/src/linux/linux-mips/arch/mips/include/asm/cputime.h:4,
                 from include/linux/sched.h:28,
                 from include/linux/ptrace.h:5,
                 from include/uapi/linux/elfcore.h:7,
                 from include/linux/elfcore.h:7,
                 from arch/mips/kernel/binfmt_elfo32.c:78:
include/asm-generic/cputime_nsecs.h:92:91: note: expected ‘struct timeval *’ but argument is of type ‘struct compat_timeval *’
In file included from arch/mips/kernel/binfmt_elfo32.c:165:0:
arch/mips/kernel/../../../fs/binfmt_elf.c:1340:2: warning: passing argument 2 of ‘cputime_to_timeval’ from incompatible pointer type [enabled by default]
In file included from include/asm-generic/cputime.h:12:0,
                 from /home/ralf/src/linux/linux-mips/arch/mips/include/asm/cputime.h:4,
                 from include/linux/sched.h:28,
                 from include/linux/ptrace.h:5,
                 from include/uapi/linux/elfcore.h:7,
                 from include/linux/elfcore.h:7,
                 from arch/mips/kernel/binfmt_elfo32.c:78:
include/asm-generic/cputime_nsecs.h:92:91: note: expected ‘struct timeval *’ but argument is of type ‘struct compat_timeval *’
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
      7b741aa4
    • D
      MIPS: OCTEON: Improve _machine_halt implementation. · 38c3c0f6
      由 David Daney 提交于 
      As noted by Wladislav Wiebe:
   $ halt
   ..
   Sent SIGKILL to all processes
   Requesting system halt
   [66.729373] System halted.
   [66.733244]
   [66.734761] =====================================
   [66.739473] [ BUG: lock held at task exit time! ]
   [66.744188] 3.8.7-0-sampleversion-fct #49 Tainted: G           O
   [66.750202] -------------------------------------
   [66.754913] init/21479 is exiting with locks still held!
   [66.760234] 1 lock held by init/21479:
   [66.763990]  #0:  (reboot_mutex){+.+...}, at: [<ffffffff801776c8>] SyS_reboot+0xe0/0x218
   [66.772165]
   [66.772165] stack backtrace:
   [66.776532] Call Trace:
   [66.778992] [<ffffffff805780a8>] dump_stack+0x8/0x34
   [66.783972] [<ffffffff801618b0>] do_exit+0x610/0xa70
   [66.788948] [<ffffffff801777a8>] SyS_reboot+0x1c0/0x218
   [66.794186] [<ffffffff8013d6a4>] handle_sys64+0x44/0x64

This is an alternative fix to the one sent by Wladislav.  We kill the
watchdog for each CPU and then spin in WAIT with interrupts disabled.
This is the lowest power mode for the OCTEON.  If we were to spin with
interrupts enabled, we would get a continual stream of warning messages
and backtraces from the lockup detector, so I chose to disable
interrupts.
Signed-off-by: NDavid Daney <david.daney@cavium.com>
Cc: Maxim Uvarov <muvarov@gmail.com>
Cc: Wladislav Wiebe <wladislav.kw@gmail.com>
Cc: linux-mips@linux-mips.org
Cc: David Daney <david.daney@cavium.com>
Patchwork: https://patchwork.linux-mips.org/patch/5324/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
      38c3c0f6
    • Y
      MIPS: rtlx: Fix implicit declaration of function set_vi_handler() · 406b5ee2
      由 Yoichi Yuasa 提交于 
      arch/mips/kernel/rtlx.c: In function 'rtlx_module_init':
arch/mips/kernel/rtlx.c:523:3: error: implicit declaration of function 'set_vi_handler' [-Werror=implicit-function-declaration]
Signed-off-by: NYoichi Yuasa <yuasa@linux-mips.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/5340/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
      406b5ee2
    • P
      arch, mm: Remove tlb_fast_mode() · 29eb7782
      由 Peter Zijlstra 提交于 
      Since the introduction of preemptible mmu_gather TLB fast mode has been
broken. TLB fast mode relies on there being absolutely no concurrency;
it frees pages first and invalidates TLBs later.

However now we can get concurrency and stuff goes *bang*.

This patch removes all tlb_fast_mode() code; it was found the better
option vs trying to patch the hole by entangling tlb invalidation with
the scheduler.

Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Tony Luck <tony.luck@intel.com>
Reported-by: NMax Filippov <jcmvbkbc@gmail.com>
Signed-off-by: NPeter Zijlstra <peterz@infradead.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      29eb7782
    • M
      x86/PCI: Map PCI setup data with ioremap() so it can be in highmem · 65694c5a
      由 Matt Fleming 提交于 
      f9a37be0 ("x86: Use PCI setup data") added support for using PCI ROM
images from setup_data.  This used phys_to_virt(), which is not valid for
highmem addresses, and can cause a crash when booting a 32-bit kernel via
the EFI boot stub.

pcibios_add_device() assumes that the physical addresses stored in
setup_data are accessible via the direct kernel mapping, and that calling
phys_to_virt() is valid.  This isn't guaranteed to be true on x86 where the
direct mapping range is much smaller than on x86-64.

Calling phys_to_virt() on a highmem address results in the following:

 BUG: unable to handle kernel paging request at 39a3c198
 IP: [<c262be0f>] pcibios_add_device+0x2f/0x90
 ...
 Call Trace:
  [<c2370c73>] pci_device_add+0xe3/0x130
  [<c274640b>] pci_scan_single_device+0x8b/0xb0
  [<c2370d08>] pci_scan_slot+0x48/0x100
  [<c2371904>] pci_scan_child_bus+0x24/0xc0
  [<c262a7b0>] pci_acpi_scan_root+0x2c0/0x490
  [<c23b7203>] acpi_pci_root_add+0x312/0x42f
  ...

The solution is to use ioremap() instead of phys_to_virt() to map the
setup data into the kernel address space.

[bhelgaas: changelog]
Tested-by: NJani Nikula <jani.nikula@intel.com>
Signed-off-by: NMatt Fleming <matt.fleming@intel.com>
Signed-off-by: NBjorn Helgaas <bhelgaas@google.com>
Cc: Matthew Garrett <mjg59@srcf.ucam.org>
Cc: Seth Forshee <seth.forshee@canonical.com>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Cc: stable@vger.kernel.org	# v3.8+
      65694c5a
  19. 04 6月, 2013 1 次提交
  21. 03 6月, 2013 8 次提交