linux.git/arch/arm/Kconfig.debug, branch v4.19

Merge tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

2018-08-23T20:44:43+00:00

Pull ARM 32-bit SoC platform updates from Olof Johansson:
 "Most of the SoC updates in this cycle are cleanups and moves to more
  modern infrastructure:

   - Davinci was moved to common clock framework

   - OMAP1-based Amstrad E3 "Superphone" saw a bunch of cleanups to the
     keyboard interface (bitbanged AT keyboard via GPIO).

   - Removal of some stale code for Renesas platforms

   - Power management improvements for i.MX6LL"

* tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (112 commits)
  ARM: uniphier: select RESET_CONTROLLER
  arm64: uniphier: select RESET_CONTROLLER
  ARM: uniphier: remove empty Makefile
  ARM: exynos: Clear global variable on init error path
  ARM: exynos: Remove outdated maintainer information
  ARM: shmobile: Always enable ARCH_TIMER on SoCs with A7 and/or A15
  ARM: shmobile: r8a7779: hide unused r8a7779_platform_cpu_kill
  soc: r9a06g032: don't build SMP files for non-SMP config
  ARM: shmobile: Add the R9A06G032 SMP enabler driver
  ARM: at91: pm: configure wakeup sources for ULP1 mode
  ARM: at91: pm: add PMC fast startup registers defines
  ARM: at91: pm: Add ULP1 mode support
  ARM: at91: pm: Use ULP0 naming instead of slow clock
  ARM: hisi: handle of_iomap and fix missing of_node_put
  ARM: hisi: check of_iomap and fix missing of_node_put
  ARM: hisi: fix error handling and missing of_node_put
  ARM: mx5: Set the DBGEN bit in ARM_GPC register
  ARM: imx51: Configure M4IF to avoid visual artifacts
  ARM: imx: call imx6sx_cpuidle_init() conditionally for 6sll
  ARM: imx: fix i.MX6SLL build
  ...

Kconfig: consolidate the "Kernel hacking" menu

2018-08-01T23:06:48+00:00

Move the source of lib/Kconfig.debug and arch/$(ARCH)/Kconfig.debug to
the top-level Kconfig.  For two architectures that means moving their
arch-specific symbols in that menu into a new arch Kconfig.debug file,
and for a few more creating a dummy file so that we can include it
unconditionally.

Also move the actual 'Kernel hacking' menu to lib/Kconfig.debug, where
it belongs.

Signed-off-by: Christoph Hellwig 
Signed-off-by: Masahiro Yamada

ARM: debug: fix BCM2836 order entry

2018-06-18T16:30:14+00:00

Entries are sorted by their address value, except the BCM2836/KONA
which are not in the proper order.

Signed-off-by: Clément Peron 
Signed-off-by: Florian Fainelli

ARM: debug: Add iProc UART3 debug addresses

2018-06-18T16:30:13+00:00

Broadcom iProc SoCs typically use the UART3 for debug/console, provide a
known good location for that.

Signed-off-by: Clément Peron 
Signed-off-by: Florian Fainelli

ARM: debug-ll: Add support for r8a77470

2018-04-16T14:01:25+00:00

Enable low-level debugging support for RZ/G1C (r8a77470). RZ/G1C uses
SCIF1 for the debug console.

Signed-off-by: Biju Das 
Reviewed-by: Fabrizio Castro 
Reviewed-by: Geert Uytterhoeven 
Signed-off-by: Simon Horman

ARM: 8747/1: make CONFIG_DEBUG_WX depend on MMU

2018-03-24T14:27:48+00:00

Without CONFIG_MMU, this results in a build failure:

./arch/arm/include/asm/memory.h:92:23: error: initializer element is not constant
 #define VECTORS_BASE  vectors_base
arch/arm/mm/dump.c:32:4: note: in expansion of macro 'VECTORS_BASE'
  { VECTORS_BASE, "Vectors" },

arch/arm/mm/dump.c:71:11: error: 'L_PTE_USER' undeclared here (not in a function); did you mean 'VTIME_USER'?
   .mask = L_PTE_USER,
           ^~~~~~~~~~

Obviously the feature only makes sense with an MMU, so let's add the
dependency here.

Fixes: a8e53c151fe7 ("ARM: 8737/1: mm: dump: add checking for writable and executable")
Acked-by: Laura Abbott 
Signed-off-by: Arnd Bergmann 
Signed-off-by: Russell King

ARM: 8737/1: mm: dump: add checking for writable and executable

2018-01-21T15:32:20+00:00

Page mappings with full RWX permissions are a security risk.
x86, arm64 has an option to walk the page tables
and dump any bad pages.

(1404d6f13e47
("arm64: dump: Add checking for writable and exectuable pages"))
Add a similar implementation for arm.

Reviewed-by: Kees Cook 
Tested-by: Laura Abbott 
Reviewed-by: Laura Abbott 
Signed-off-by: Jinbum Park 
Signed-off-by: Russell King

ARM: 8735/1: mm: dump: make page table dumping reusable

2018-01-21T15:32:17+00:00

This patch refactors the arm page table dumping code,
so multiple tables may be registered with the framework.

This patch refers below commits of arm64.
(4674fdb9f149 ("arm64: mm: dump: make page table dumping reusable"))
(4ddb9bf83349 ("arm64: dump: Make ptdump debugfs a separate option"))

Reviewed-by: Kees Cook 
Tested-by: Laura Abbott 
Reviewed-by: Laura Abbott 
Signed-off-by: Jinbum Park 
Signed-off-by: Russell King

Merge branch 'fixes' of git://git.armlinux.org.uk/~rmk/linux-arm

2017-11-26T23:03:49+00:00

Pull ARM fixes from Russell King:

 - LPAE fixes for kernel-readonly regions

 - Fix for get_user_pages_fast on LPAE systems

 - avoid tying decompressor to a particular platform if DEBUG_LL is
   enabled

 - BUG if we attempt to return to userspace but the to-be-restored PSR
   value keeps us in privileged mode (defeating an issue that ftracetest
   found)

* 'fixes' of git://git.armlinux.org.uk/~rmk/linux-arm:
  ARM: BUG if jumping to usermode address in kernel mode
  ARM: 8722/1: mm: make STRICT_KERNEL_RWX effective for LPAE
  ARM: 8721/1: mm: dump: check hardware RO bit for LPAE
  ARM: make decompressor debug output user selectable
  ARM: fix get_user_pages_fast

ARM: make decompressor debug output user selectable

2017-11-21T14:46:11+00:00

Make the decompressor debug output user selectable, otherwise merely
enabling DEBUG_LL causes the decompressor to become board specific,
thereby preventing a multi-platform kernel from booting.  Enabling
DEBUG_LL doesn't cause the kernel itself to become platform specific
unless EARLY_PRINTK is enabled, or one of the debugging routines is
added in a path that results in it being called.

Signed-off-by: Russell King