Implement pci_address_to_pio as weak function to remove the dependency on
asm/prom.h. This is in preparation to make prom.h optional.
Signed-off-by: NRob Herring <rob.herring@calxeda.com>
Acked-by: NGrant Likely <grant.likely@linaro.org>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: x86@kernel.org
Cc: Grant Likely <grant.likely@linaro.org>

Once prom.h is no longer implicitly included, we need to include setup.h
to get COMMAND_LINE_SIZE.
Signed-off-by: NRob Herring <rob.herring@calxeda.com>
Acked-by: NGrant Likely <grant.likely@linaro.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: x86@kernel.org

In preparation of removing prom.h include by of.h, add explicit includes.
Signed-off-by: NRob Herring <rob.herring@calxeda.com>
Acked-by: NGrant Likely <grant.likely@linaro.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: linux-mips@linux-mips.org

While powerpc is a mess of implicit includes by prom.h, microblaze just
copied this and is easily fixed. Add the necessary explicit includes and
remove unnecessary includes and other parts from prom.h
Signed-off-by: NRob Herring <rob.herring@calxeda.com>
Acked-by: NGrant Likely <grant.likely@linaro.org>
Cc: Michal Simek <monstr@monstr.eu>
Cc: microblaze-uclinux@itee.uq.edu.au
Cc: netdev@vger.kernel.org

Move setup_machine_fdt out of prom.h and into asm/setup.h in preparation
to remove prom.h.
Signed-off-by: NRob Herring <rob.herring@calxeda.com>
Acked-by: NGrant Likely <grant.likely@linaro.org>
Cc: James Hogan <james.hogan@imgtec.com>
Cc: linux-metag@vger.kernel.org

Hexagon does not have a prom.h header, so it is probably broken with
CONFIG_OF enabled. In any case, remove unnecessary prom.h include in
preparation to make prom.h optional.
Signed-off-by: NRob Herring <rob.herring@calxeda.com>
Acked-by: NRichard Kuo <rkuo@codeaurora.org>
Acked-by: NGrant Likely <grant.likely@linaro.org>
Cc: linux-hexagon@vger.kernel.org

Remove unnecessary prom.h includes in preparation to remove prom.h.
Signed-off-by: NRob Herring <rob.herring@calxeda.com>
Acked-by: NVineet Gupta <vgupta@synopsys.com>
Acked-by: NGrant Likely <grant.likely@linaro.org>

Remove unnecessary prom.h include in preparation to make prom.h optional.
Signed-off-by: NRob Herring <rob.herring@calxeda.com>
Acked-by: NCatalin Marinas <catalin.marinas@arm.com>
Acked-by: NGrant Likely <grant.likely@linaro.org>
Cc: Will Deacon <will.deacon@arm.com>

Remove unnecessary prom.h include in preparation to make prom.h optional.
Signed-off-by: NRob Herring <rob.herring@calxeda.com>
Acked-by: NGrant Likely <grant.likely@linaro.org>
Cc: Santosh Shilimkar <santosh.shilimkar@ti.com>

Convert mips to use the common of_flat_dt_get_machine_name function.
Signed-off-by: NRob Herring <rob.herring@calxeda.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: linux-mips@linux-mips.org
Acked-by: NJohn Crispin <blogic@openwrt.org>

Convert metag to use the common of_flat_dt_get_machine_name function.
Signed-off-by: NRob Herring <rob.herring@calxeda.com>
[james.hogan: fix missing arch_get_next_mach and const mismatch]
Reported-by: NGuenter Roeck <linux@roeck-us.net>
Signed-off-by: NJames Hogan <james.hogan@imgtec.com>

Convert arm64 to use the common of_flat_dt_get_machine_name function.
Signed-off-by: NRob Herring <rob.herring@calxeda.com>
Acked-by: NCatalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: linux-arm-kernel@lists.infradead.org

Convert arm to use the common of_flat_dt_match_machine function.
Signed-off-by: NRob Herring <rob.herring@calxeda.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: linux-arm-kernel@lists.infradead.org

Convert arc to use the common of_flat_dt_match_machine function.
Signed-off-by: NRob Herring <rob.herring@calxeda.com>
Acked-by: NVineet Gupta <vgupta@synopsys.com>

It appears openrisc prom.c was just copied from another arch with a
bunch of unnecessary includes. Remove all the unecessary ones.
Signed-off-by: NRob Herring <rob.herring@calxeda.com>
Cc: Jonas Bonn <jonas@southpole.se>
Cc: linux@lists.openrisc.net

All arches do essentially the same thing now for
early_init_dt_setup_initrd_arch, so it can now be removed.
Signed-off-by: NRob Herring <rob.herring@calxeda.com>
Acked-by: NVineet Gupta <vgupta@synopsys.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Mark Salter <msalter@redhat.com>
Cc: Aurelien Jacquiot <a-jacquiot@ti.com>
Cc: James Hogan <james.hogan@imgtec.com>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Jonas Bonn <jonas@southpole.se>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: x86@kernel.org
Cc: Chris Zankel <chris@zankel.net>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Acked-by: NGrant Likely <grant.likely@linaro.org>

In order to unify the initrd scanning for DT across architectures, make
arm64 use initrd_start and initrd_end instead of the physical addresses.
Signed-off-by: NRob Herring <rob.herring@calxeda.com>
Acked-by: NCatalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: linux-arm-kernel@lists.infradead.org

In order to unify the initrd scanning for DT across architectures, make
arm set initrd_start and initrd_end instead of the physical addresses.
This is aligned with all other architectures.
Signed-off-by: NRob Herring <rob.herring@calxeda.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: linux-arm-kernel@lists.infradead.org
Acked-by: NGrant Likely <grant.likely@linaro.org>

Create a weak version of early_init_dt_add_memory_arch which uses
memblock. This will unify all architectures except ones with custom
memory bank structs.
Signed-off-by: NRob Herring <rob.herring@calxeda.com>
Acked-by: NCatalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Jonas Bonn <jonas@southpole.se>
Acked-by: NGrant Likely <grant.likely@linaro.org>
Cc: linux-arm-kernel@lists.infradead.org
Cc: microblaze-uclinux@itee.uq.edu.au
Cc: linux@lists.openrisc.net
Cc: devicetree@vger.kernel.org

Convert xtensa to use new early_init_dt_scan function.
Signed-off-by: NRob Herring <rob.herring@calxeda.com>
Acked-by: NMax Filippov <jcmvbkbc@gmail.com>
Cc: Chris Zankel <chris@zankel.net>
Cc: linux-xtensa@linux-xtensa.org

Convert openrisc to use new early_init_dt_scan function.
Signed-off-by: NRob Herring <rob.herring@calxeda.com>
Cc: Jonas Bonn <jonas@southpole.se>
Cc: linux@lists.openrisc.net

Convert mips to use new early_init_dt_scan function.

Remove early_init_dt_scan_memory_arch
Signed-off-by: NRob Herring <rob.herring@calxeda.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: linux-mips@linux-mips.org
Acked-by: NJohn Crispin <blogic@openwrt.org>

Convert microblaze to use new early_init_dt_scan function.
Signed-off-by: NRob Herring <rob.herring@calxeda.com>
Tested-by: NMichal Simek <monstr@monstr.eu>
Cc: microblaze-uclinux@itee.uq.edu.au

Convert metag to use new early_init_dt_scan function.
Signed-off-by: NRob Herring <rob.herring@calxeda.com>
Cc: James Hogan <james.hogan@imgtec.com>

Convert c6x to use new early_init_dt_scan function.
Signed-off-by: NRob Herring <rob.herring@calxeda.com>
Acked-by: NMark Salter <msalter@redhat.com>
Cc: Aurelien Jacquiot <a-jacquiot@ti.com>
Cc: linux-c6x-dev@linux-c6x.org

Convert arm64 to use new early_init_dt_scan function.
Signed-off-by: NRob Herring <rob.herring@calxeda.com>
Acked-by: NCatalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: linux-arm-kernel@lists.infradead.org

Convert arm to use new early_init_dt_scan function.
Signed-off-by: NRob Herring <rob.herring@calxeda.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: linux-arm-kernel@lists.infradead.org

Convert arc to use new early_init_dt_scan function.
Signed-off-by: NRob Herring <rob.herring@calxeda.com>
Acked-by: NVineet Gupta <vgupta@synopsys.com>

Use the common unflatten_and_copy_device_tree to copy the built-in FDT
out of init section.
Signed-off-by: NRob Herring <rob.herring@calxeda.com>
Cc: James Hogan <james.hogan@imgtec.com>

Use the common unflatten_and_copy_device_tree to copy the built-in FDT
out of init section.
Signed-off-by: NRob Herring <rob.herring@calxeda.com>
Cc: Chris Zankel <chris@zankel.net>
Acked-by: NMax Filippov <jcmvbkbc@gmail.com>
Cc: linux-xtensa@linux-xtensa.org
Acked-by: NGrant Likely <grant.likely@linaro.org>

Use the common unflatten_and_copy_device_tree to copy the built-in FDT
out of init section.
Signed-off-by: NRob Herring <rob.herring@calxeda.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: x86@kernel.org

Use the common unflatten_and_copy_device_tree to copy the built-in FDT
out of init section. This moves the copy later in the boot, but there
do not appear to be any references to strings in the FDT before the copy.
Signed-off-by: NRob Herring <rob.herring@calxeda.com>
Cc: Jonas Bonn <jonas@southpole.se>
Cc: linux@lists.openrisc.net

Use the common unflatten_and_copy_device_tree to copy the built-in FDT
out of init section.
Signed-off-by: NRob Herring <rob.herring@calxeda.com>
Acked-by: NVineet Gupta <vgupta@synopsys.com>
Acked-by: NGrant Likely <grant.likely@linaro.org>

Save some pointless copying of the kernel command line and just use
boot_command_line instead. The DT code already handles CONFIG_CMDLINE,
so a separate copy is not needed.
Signed-off-by: NRob Herring <rob.herring@calxeda.com>
Cc: Jonas Bonn <jonas@southpole.se>
Cc: linux@lists.openrisc.net
Reviewed-by: NGrant Likely <grant.likely@linaro.org>

Save some pointless copying of the kernel command line and just use
boot_command_line instead.

Also remove default_command_line as it is not referenced anywhere, and
the DT code already handles the default command line.
Signed-off-by: NRob Herring <rob.herring@calxeda.com>
Tested-by: NMark Salter <msalter@redhat.com>
Acked-by: NMark Salter <msalter@redhat.com>
Cc: Aurelien Jacquiot <a-jacquiot@ti.com>
Cc: linux-c6x-dev@linux-c6x.org
Reviewed-by: NGrant Likely <grant.likely@linaro.org>

Ran into this cryptic PMU bootup log recently:

[    0.124047] Performance Events:
[    0.125000] smpboot: ...

Turns out we print this if no PMU is detected. Fall back to
the right condition so that the following is printed:

[    0.122381] Performance Events: no PMU driver, software events only.

Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Link: http://lkml.kernel.org/n/tip-u2fwaUffakjp0qkpRfqljgsn@git.kernel.orgSigned-off-by: NIngo Molnar <mingo@kernel.org>

Enable ARCH_USE_CMPXCHG_LOCKREF since it shows performance improvements
with Linus' simple stat() test case of up to 50% on a 30 cpu system.
Signed-off-by: NHeiko Carstens <heiko.carstens@de.ibm.com>

Linus suggested to replace

 #ifndef CONFIG_HAVE_ARCH_MUTEX_CPU_RELAX
 #define arch_mutex_cpu_relax() cpu_relax()
 #endif

with just a simple

  #ifndef arch_mutex_cpu_relax
  # define arch_mutex_cpu_relax() cpu_relax()
  #endif

to get rid of CONFIG_HAVE_CPU_RELAX_SIMPLE. So architectures can
simply define arch_mutex_cpu_relax if they want an architecture
specific function instead of having to add a select statement in
their Kconfig in addition.
Suggested-by: NLinus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: NHeiko Carstens <heiko.carstens@de.ibm.com>

ad65782f (context_tracking: Optimize main APIs off case
with static key) converted context tracking main APIs to inline
function and left ARM asm callers behind.

This can be easily fixed by making ARM calling the post static
keys context tracking function. We just need to replicate the
static key checks there. We'll remove these later when ARM will
support the context tracking static keys.
Reported-by: NGuenter Roeck <linux@roeck-us.net>
Reported-by: NRussell King <linux@arm.linux.org.uk>
Signed-off-by: NFrederic Weisbecker <fweisbec@gmail.com>
Tested-by: NKevin Hilman <khilman@linaro.org>
Cc: Nicolas Pitre <nicolas.pitre@linaro.org>
Cc: Anil Kumar <anilk4.v@gmail.com>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Benoit Cousson <b-cousson@ti.com>
Cc: Guenter Roeck <linux@roeck-us.net>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Kevin Hilman <khilman@linaro.org>

On AMD family 14h, applying microcode patch on the a core (core0)
would also affect the other core (core1) in the same compute
unit. The driver would skip applying the patch on core1, but it
still need to update kernel structures to reflect the proper
patch level.

The current logic is not updating the struct
ucode_cpu_info.cpu_sig.rev of the skipped core. This causes the
/sys/devices/system/cpu/cpu1/microcode/version to report
incorrect patch level as shown below:

  $ grep . cpu?/microcode/version
  cpu0/microcode/version:0x600063d
  cpu1/microcode/version:0x6000626
  cpu2/microcode/version:0x600063d
  cpu3/microcode/version:0x6000626
  cpu4/microcode/version:0x600063d
Signed-off-by: NSuravee Suthikulpanit <suravee.suthikulpanit@amd.com>
Acked-by: NBorislav Petkov <bp@suse.de>
Cc: <bp@alien8.de>
Cc: <jacob.w.shin@gmail.com>
Cc: <herrmann.der.user@googlemail.com>
Link: http://lkml.kernel.org/r/1285806432-1995-1-git-send-email-suravee.suthikulpanit@amd.comSigned-off-by: NIngo Molnar <mingo@kernel.org>