linux-stable.git/Documentation/arm, branch v3.16 Linux kernel stable tree Merge branch 'for-linus' of git://ftp.arm.linux.org.uk/~rmk/linux-arm into next 2014-06-05T22:57:04+00:00 Linus Torvalds torvalds@linux-foundation.org 2014-06-05T22:57:04+00:00 eb3d3ec567e868c8a3bfbfdfc9465ffd52983d11 Pull ARM updates from Russell King: - Major clean-up of the L2 cache support code. The existing mess was becoming rather unmaintainable through all the additions that others have done over time. This turns it into a much nicer structure, and implements a few performance improvements as well. - Clean up some of the CP15 control register tweaks for alignment support, moving some code and data into alignment.c - DMA properties for ARM, from Santosh and reviewed by DT people. This adds DT properties to specify bus translations we can't discover automatically, and to indicate whether devices are coherent. - Hibernation support for ARM - Make ftrace work with read-only text in modules - add suspend support for PJ4B CPUs - rework interrupt masking for undefined instruction handling, which allows us to enable interrupts earlier in the handling of these exceptions. - support for big endian page tables - fix stacktrace support to exclude stacktrace functions from the trace, and add save_stack_trace_regs() implementation so that kprobes can record stack traces. - Add support for the Cortex-A17 CPU. - Remove last vestiges of ARM710 support. - Removal of ARM "meminfo" structure, finally converting us solely to memblock to handle the early memory initialisation. * 'for-linus' of git://ftp.arm.linux.org.uk/~rmk/linux-arm: (142 commits) ARM: ensure C page table setup code follows assembly code (part II) ARM: ensure C page table setup code follows assembly code ARM: consolidate last remaining open-coded alignment trap enable ARM: remove global cr_no_alignment ARM: remove CPU_CP15 conditional from alignment.c ARM: remove unused adjust_cr() function ARM: move "noalign" command line option to alignment.c ARM: provide common method to clear bits in CPU control register ARM: 8025/1: Get rid of meminfo ARM: 8060/1: mm: allow sub-architectures to override PCI I/O memory type ARM: 8066/1: correction for ARM patch 8031/2 ARM: 8049/1: ftrace/add save_stack_trace_regs() implementation ARM: 8065/1: remove last use of CONFIG_CPU_ARM710 ARM: 8062/1: Modify ldrt fixup handler to re-execute the userspace instruction ARM: 8047/1: rwsem: use asm-generic rwsem implementation ARM: l2c: trial at enabling some Cortex-A9 optimisations ARM: l2c: add warnings for stuff modifying aux_ctrl register values ARM: l2c: print a warning with L2C-310 caches if the cache size is modified ARM: l2c: remove old .set_debug method ARM: l2c: kill L2X0_AUX_CTRL_MASK before anyone else makes use of this ... 
Pull ARM updates from Russell King:

 - Major clean-up of the L2 cache support code.  The existing mess was
   becoming rather unmaintainable through all the additions that others
   have done over time.  This turns it into a much nicer structure, and
   implements a few performance improvements as well.

 - Clean up some of the CP15 control register tweaks for alignment
   support, moving some code and data into alignment.c

 - DMA properties for ARM, from Santosh and reviewed by DT people.  This
   adds DT properties to specify bus translations we can't discover
   automatically, and to indicate whether devices are coherent.

 - Hibernation support for ARM

 - Make ftrace work with read-only text in modules

 - add suspend support for PJ4B CPUs

 - rework interrupt masking for undefined instruction handling, which
   allows us to enable interrupts earlier in the handling of these
   exceptions.

 - support for big endian page tables

 - fix stacktrace support to exclude stacktrace functions from the
   trace, and add save_stack_trace_regs() implementation so that kprobes
   can record stack traces.

 - Add support for the Cortex-A17 CPU.

 - Remove last vestiges of ARM710 support.

 - Removal of ARM "meminfo" structure, finally converting us solely to
   memblock to handle the early memory initialisation.

* 'for-linus' of git://ftp.arm.linux.org.uk/~rmk/linux-arm: (142 commits)
  ARM: ensure C page table setup code follows assembly code (part II)
  ARM: ensure C page table setup code follows assembly code
  ARM: consolidate last remaining open-coded alignment trap enable
  ARM: remove global cr_no_alignment
  ARM: remove CPU_CP15 conditional from alignment.c
  ARM: remove unused adjust_cr() function
  ARM: move "noalign" command line option to alignment.c
  ARM: provide common method to clear bits in CPU control register
  ARM: 8025/1: Get rid of meminfo
  ARM: 8060/1: mm: allow sub-architectures to override PCI I/O memory type
  ARM: 8066/1: correction for ARM patch 8031/2
  ARM: 8049/1: ftrace/add save_stack_trace_regs() implementation
  ARM: 8065/1: remove last use of CONFIG_CPU_ARM710
  ARM: 8062/1: Modify ldrt fixup handler to re-execute the userspace instruction
  ARM: 8047/1: rwsem: use asm-generic rwsem implementation
  ARM: l2c: trial at enabling some Cortex-A9 optimisations
  ARM: l2c: add warnings for stuff modifying aux_ctrl register values
  ARM: l2c: print a warning with L2C-310 caches if the cache size is modified
  ARM: l2c: remove old .set_debug method
  ARM: l2c: kill L2X0_AUX_CTRL_MASK before anyone else makes use of this
  ...
Merge branch 'arm64-efi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into next 2014-06-05T20:15:32+00:00 Linus Torvalds torvalds@linux-foundation.org 2014-06-05T20:15:32+00:00 c3c55a07203947f72afa50a3218460b27307c47d Pull ARM64 EFI update from Peter Anvin: "By agreement with the ARM64 EFI maintainers, we have agreed to make -tip the upstream for all EFI patches. That is why this patchset comes from me :) This patchset enables EFI stub support for ARM64, like we already have on x86" * 'arm64-efi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: arm64: efi: only attempt efi map setup if booting via EFI efi/arm64: ignore dtb= when UEFI SecureBoot is enabled doc: arm64: add description of EFI stub support arm64: efi: add EFI stub doc: arm: add UEFI support documentation arm64: add EFI runtime services efi: Add shared FDT related functions for ARM/ARM64 arm64: Add function to create identity mappings efi: add helper function to get UEFI params from FDT doc: efi-stub.txt updates for ARM lib: add fdt_empty_tree.c 
Pull ARM64 EFI update from Peter Anvin:
 "By agreement with the ARM64 EFI maintainers, we have agreed to make
  -tip the upstream for all EFI patches.  That is why this patchset
  comes from me :)

  This patchset enables EFI stub support for ARM64, like we already have
  on x86"

* 'arm64-efi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  arm64: efi: only attempt efi map setup if booting via EFI
  efi/arm64: ignore dtb= when UEFI SecureBoot is enabled
  doc: arm64: add description of EFI stub support
  arm64: efi: add EFI stub
  doc: arm: add UEFI support documentation
  arm64: add EFI runtime services
  efi: Add shared FDT related functions for ARM/ARM64
  arm64: Add function to create identity mappings
  efi: add helper function to get UEFI params from FDT
  doc: efi-stub.txt updates for ARM
  lib: add fdt_empty_tree.c
ARM: 8066/1: correction for ARM patch 8031/2 2014-06-01T00:13:18+00:00 Nicolas Pitre nicolas.pitre@linaro.org 2014-05-30T19:58:27+00:00 437b680a222098f67ecb1690f8eb91f550bfaac8 A small mistake slipped through in memory.txt. Signed-off-by: Nicolas Pitre <nico@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> 
A small mistake slipped through in memory.txt.

Signed-off-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Merge tag 'berlin-soc-3.16' of https://github.com/shesselba/linux-berlin into next/soc 2014-05-26T20:41:02+00:00 Olof Johansson olof@lixom.net 2014-05-26T20:41:02+00:00 e469d6ba0ac0b75f6cd762fc497d35dec0d11fc2 Merge "ARM: berlin: SoC changes for v3.16" from Sebastian Hesselbart: Despite relatively young Berlin SoC support, we already have support for a BG2Q SoC provided by Alexandre Belloni and Antoine Tenart. Also, we gained support for DW gpio and a pinctrl driver. * tag 'berlin-soc-3.16' of https://github.com/shesselba/linux-berlin: ARM: berlin: add the pinctrl dependency for the Marvell Berlin SoCs ARM: berlin: add the LIBGPIO as a dependency for the BG2Q ARM: berlin: add MACH_BERLIN_BG2Q symbol ARM: berlin: add Marvell Armada 1500 pro to Marvell doc Signed-off-by: Olof Johansson <olof@lixom.net> 
Merge "ARM: berlin: SoC changes for v3.16" from Sebastian Hesselbart:

Despite relatively young Berlin SoC support, we already have support
for a BG2Q SoC provided by Alexandre Belloni and Antoine Tenart. Also,
we gained support for DW gpio and a pinctrl driver.

* tag 'berlin-soc-3.16' of https://github.com/shesselba/linux-berlin:
  ARM: berlin: add the pinctrl dependency for the Marvell Berlin SoCs
  ARM: berlin: add the LIBGPIO as a dependency for the BG2Q
  ARM: berlin: add MACH_BERLIN_BG2Q symbol
  ARM: berlin: add Marvell Armada 1500 pro to Marvell doc

Signed-off-by: Olof Johansson <olof@lixom.net>
ARM: berlin: add Marvell Armada 1500 pro to Marvell doc 2014-05-19T20:52:05+00:00 Antoine Tenart antoine.tenart@free-electrons.com 2014-03-18T14:32:46+00:00 af987718f0bb238a7f09bf6aa9b87c7121e3bbd3 This adds Marvell Berlin Armada 1500 Pro (BG2Q) to Marvell SoC documentation. Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com> Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> 
This adds Marvell Berlin Armada 1500 Pro (BG2Q) to Marvell SoC documentation.

Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
ARM: STi: Add STiH407 SoC support 2014-05-17T08:22:30+00:00 Maxime Coquelin maxime.coquelin@st.com 2014-02-27T12:17:27+00:00 c6594025c0f8cea2ba089444a359495bd0ea3e6f This patch adds support to STiH407 SoC. Acked-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: Maxime Coquelin <maxime.coquelin@st.com> 
This patch adds support to STiH407 SoC.

Acked-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: Maxime Coquelin <maxime.coquelin@st.com>
doc: arm: add UEFI support documentation 2014-04-30T18:57:01+00:00 Leif Lindholm leif.lindholm@linaro.org 2013-11-28T16:41:21+00:00 e1977464e8403b4d7ed23d6bdb3358e78b311aa0 This patch provides documentation of the [U]EFI runtime service and configuration features for the arm architecture. Cc: Rob Landley <rob@landley.net> Cc: linux-doc@vger.kernel.org Signed-off-by: Leif Lindholm <leif.lindholm@linaro.org> Acked-by: Grant Likely <grant.likely@linaro.org> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Matt Fleming <matt.fleming@intel.com> 
This patch provides documentation of the [U]EFI runtime service and
configuration features for the arm architecture.

Cc: Rob Landley <rob@landley.net>
Cc: linux-doc@vger.kernel.org
Signed-off-by: Leif Lindholm <leif.lindholm@linaro.org>
Acked-by: Grant Likely <grant.likely@linaro.org>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
ARM: 8031/2: change fixmap mapping region to support 32 CPUs 2014-04-23T10:09:42+00:00 Liu Hua sdu.liu@huawei.com 2014-04-18T08:43:32+00:00 a05e54c103b0b8e1dab5d04b411f1d48387c4903 In 32-bit ARM systems, the fixmap mapping region can support no more than 14 CPUs(total: 896k; one CPU: 64K). And we can configure NR_CPUS up to 32. So there is a mismatch. This patch moves fixmapping region downwards to region 0xffc00000- 0xffe00000. Then the fixmap mapping region can support up to 32 CPUs. Reviewed-by: Nicolas Pitre <nico@linaro.org> Signed-off-by: Liu Hua <sdu.liu@huawei.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> 
In 32-bit ARM systems, the fixmap mapping region can support no more
than 14 CPUs(total: 896k; one CPU: 64K). And we can configure NR_CPUS
up to 32. So there is a mismatch.

This patch moves fixmapping region downwards to region 0xffc00000-
0xffe00000. Then the fixmap mapping region can support up to 32 CPUs.

Reviewed-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Liu Hua <sdu.liu@huawei.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
ARM: 8023/1: remove remnants of the static DMA mapping 2014-04-23T00:24:33+00:00 Nicolas Pitre nicolas.pitre@linaro.org 2014-04-09T20:24:02+00:00 64d3b6a3f480154b6727dd2187f5f2b58c15da77 It looks like the static mapping area for DMA was replaced by dynamic allocation into the vmalloc area by commit e9da6e9905e6 but the information in Documentation/arm/memory.txt was not removed accordingly. CONSISTENT_END in arch/arm/include/asm/memory.h has no more users and can be removed as well. Signed-off-by: Nicolas Pitre <nico@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> 
It looks like the static mapping area for DMA was replaced by dynamic
allocation into the vmalloc area by commit e9da6e9905e6 but the
information in Documentation/arm/memory.txt was not removed accordingly.

CONSISTENT_END in arch/arm/include/asm/memory.h has no more users and
can be removed as well.

Signed-off-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Merge tag 'mvebu-soc-3xx-3.15' of git://git.infradead.org/linux-mvebu into next/soc 2014-02-25T17:34:42+00:00 Arnd Bergmann arnd@arndb.de 2014-02-25T17:34:42+00:00 88dbede1da891a20b8499568122d29471c76b3b0 Merge "mvebu new SoCs for v3.15" from Jason Cooper: - mvebu - initial support for Armada 375, 380, and 385 Depends: - tags/mvebu-soc-3.15 (resolves delete/rename hidden conflict) * tag 'mvebu-soc-3xx-3.15' of git://git.infradead.org/linux-mvebu: Documentation: arm: update Marvell documentation about Armada 375/38x ARM: mvebu: add initial support for the Armada 380/385 SOCs ARM: mvebu: add workaround for data abort issue on Armada 375 ARM: mvebu: add initial support for the Armada 375 SOCs ARM: mvebu: add Armada 375 support to the system-controller driver ARM: mvebu: make CPU_PJ4B selection a per-SoC choice ARM: mvebu: rename DT machine structure for Armada 370/XP ARM: mvebu: rename armada-370-xp.c to board-v7.c Signed-off-by: Arnd Bergmann <arnd@arndb.de> 
Merge "mvebu new SoCs for v3.15" from Jason Cooper:

 - mvebu
    - initial support for Armada 375, 380, and 385

Depends:
 - tags/mvebu-soc-3.15 (resolves delete/rename hidden conflict)

* tag 'mvebu-soc-3xx-3.15' of git://git.infradead.org/linux-mvebu:
  Documentation: arm: update Marvell documentation about Armada 375/38x
  ARM: mvebu: add initial support for the Armada 380/385 SOCs
  ARM: mvebu: add workaround for data abort issue on Armada 375
  ARM: mvebu: add initial support for the Armada 375 SOCs
  ARM: mvebu: add Armada 375 support to the system-controller driver
  ARM: mvebu: make CPU_PJ4B selection a per-SoC choice
  ARM: mvebu: rename DT machine structure for Armada 370/XP
  ARM: mvebu: rename armada-370-xp.c to board-v7.c

Signed-off-by: Arnd Bergmann <arnd@arndb.de>