| fd44aa5e570d1d8c7d361dcbf94c2b8cd25cfe92 |
|
17-Jun-2014 |
Magnus Damm <damm+renesas@opensource.se> |
ARM: shmobile: Move common.h
Change location for common.h so it can be used as #include "common.h"
instead of the old style #include <mach/common.h>.
Signed-off-by: Magnus Damm <damm+renesas@opensource.se>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
|
| 505891ec2558771cd84fe00fc1646275b4c069ed |
|
17-Feb-2014 |
Magnus Damm <damm@opensource.se> |
ARM: shmobile: Remove EMEV2 header file
There is no C board code left for the EMEV2 SoC, so
get rid of the emev2.h include file to save some lines.
While at it make functions static.
Signed-off-by: Magnus Damm <damm@opensource.se>
[horms+renesas@verge.net.au: Resolved conflict]
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
|
| 344c62f7a65f9124d5262e34dab66d581081a3a7 |
|
14-Sep-2013 |
Magnus Damm <damm@opensource.se> |
ARM: shmobile: Let EMEV2 rely on SCU CPU notifier
Now when CPU notifiers are used for SCU boot vector
setup shmobile_smp_scu_boot_secondary() is no longer
needed.
Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
|
| 0da60225dee270a4a4b86c08509e772e78961b82 |
|
31-Jul-2013 |
Magnus Damm <damm@opensource.se> |
ARM: shmobile: Use shared SCU SMP boot code on emev2
Use shared SCU code on emev2 for SMP boot.
Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
|
| 8d7217e5d74966e1016dad1f48fdaebb85deb685 |
|
02-Jul-2013 |
Magnus Damm <damm@opensource.se> |
ARM: shmobile: Disconnect EMEV2 SMP code from clocks
Update the EMEV2 SMP code to access the SMU directly
instead of relying on help from the legacy clock code.
This change moves us one step closer to common clocks.
Signed-off-by: Magnus Damm <damm@opensource.se>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
|
| 683101a66203149da96e93fb8c0740c726bc114f |
|
02-Jul-2013 |
Magnus Damm <damm@opensource.se> |
ARM: shmobile: Use DT for SMP on EMEV2 and KZM9D
Rework the EMEV2 SMP code to rely on DT for CPU information
instead of reading out number of CPU cores from the SCU.
Signed-off-by: Magnus Damm <damm@opensource.se>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
|
| 8bd26e3a7e49af2697449bbcb7187a39dc85d672 |
|
17-Jun-2013 |
Paul Gortmaker <paul.gortmaker@windriver.com> |
arm: delete __cpuinit/__CPUINIT usage from all ARM users
The __cpuinit type of throwaway sections might have made sense
some time ago when RAM was more constrained, but now the savings
do not offset the cost and complications. For example, the fix in
commit 5e427ec2d0 ("x86: Fix bit corruption at CPU resume time")
is a good example of the nasty type of bugs that can be created
with improper use of the various __init prefixes.
After a discussion on LKML[1] it was decided that cpuinit should go
the way of devinit and be phased out. Once all the users are gone,
we can then finally remove the macros themselves from linux/init.h.
Note that some harmless section mismatch warnings may result, since
notify_cpu_starting() and cpu_up() are arch independent (kernel/cpu.c)
and are flagged as __cpuinit -- so if we remove the __cpuinit from
the arch specific callers, we will also get section mismatch warnings.
As an intermediate step, we intend to turn the linux/init.h cpuinit
related content into no-ops as early as possible, since that will get
rid of these warnings. In any case, they are temporary and harmless.
This removes all the ARM uses of the __cpuinit macros from C code,
and all __CPUINIT from assembly code. It also had two ".previous"
section statements that were paired off against __CPUINIT
(aka .section ".cpuinit.text") that also get removed here.
[1] https://lkml.org/lkml/2013/5/20/589
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Will Deacon <will.deacon@arm.com>
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
|
| a188bfcafa61f600877f3e2b4a27cbe42b72c818 |
|
10-Jun-2013 |
Magnus Damm <damm@opensource.se> |
ARM: shmobile: EMEV2 SMP with SCU boot fn and args
Let EMEV2 make use of shmobile_boot_fn and shmobile_boot_arg
together with shmobile_boot_scu and the SCU base address.
Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
|
| c0114709ed85a5693eb74acdfa03d94f7f12e5b8 |
|
14-Jan-2013 |
Catalin Marinas <catalin.marinas@arm.com> |
irqchip: gic: Perform the gic_secondary_init() call via CPU notifier
All the calls to gic_secondary_init() pass 0 as the first argument.
Since this function is called on each CPU when starting, it can be done
in a platform-independent way via a CPU notifier registered by the GIC
code.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Acked-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
Tested-by: Simon Horman <horms+renesas@verge.net.au>
Acked-by: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com>
Tested-by: Dinh Nguyen <dinguyen@altera.com>
Acked-by: Nicolas Pitre <nico@linaro.org>
Tested-by: Marc Zyngier <marc.zyngier@arm.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Kukjin Kim <kgene.kim@samsung.com>
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: David Brown <davidb@codeaurora.org>
Cc: Bryan Huntsman <bryanh@codeaurora.org>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Magnus Damm <magnus.damm@gmail.com>
Cc: Shiraz Hashim <shiraz.hashim@st.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Kukjin Kim <kgene.kim@samsung.com>
Cc: Barry Song <baohua.song@csr.com>
|
| 1af4b3fa1912f20a3dd1e231e90b439c0226b9b1 |
|
13-Feb-2013 |
Magnus Damm <damm@opensource.se> |
ARM: shmobile: Update EMEV2 to use scu_power_mode()
Update the SMP code for EMEV2 to make use of the
shared SCU function scu_power_mode() together with
the early setup code in shmobile_secondary_vector_scu.
With this patch in place the secondary CPUs modify the
SCU setting during early boot instead of letting other
CPUs deal with the coherency setting before boot. In
other words, we used to setup coherency before boot
in emev2_boot_secondary() but that bit is now instead
handled by the code in shmobile_secondary_vector_scu.
Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
|
| 4c8228455d1008136d748e6973dd72578bab4697 |
|
13-Feb-2013 |
Magnus Damm <damm@opensource.se> |
ARM: shmobile: Common shmobile_scu_base in headsmp-scu.S
Update the code in headsmp-scu.S to use a global
shmobile_scu_base variable both for convenient SCU
base address storage and for the early SCU setup
code in shmobile_secondary_vector_scu.
With this patch applied r8a7779, sh73a0 and EMEV2
all make use of the global shmobile_scu_base
variable. However only sh73a0 makes use of the SCU
bring up code in shmobile_secondary_vector_scu.
Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
|
| d8a28ed1bc06128f8761b332c74759db1dc7d82c |
|
13-Feb-2013 |
Magnus Damm <damm@opensource.se> |
ARM: shmobile: Rework EMEV2 scu_base variable
Rename the static scu_base variable into shmobile_scu_base.
Later in the series the shmobile_scu_base variable will be
made into a global variable so this is preparation only.
Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
|
| 2f747dbab424396b797d8abfb5d54c5e19003885 |
|
12-Feb-2013 |
Magnus Damm <damm@opensource.se> |
ARM: shmobile: Remove emev2_get_core_count()
Reduce the number of lines of code in smp-emev2.c
by getting rid of the emev2_get_core_count() function.
Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
|
| da252b8ee542e95d35374b1d31006f8fe5d59f6a |
|
12-Feb-2013 |
Magnus Damm <damm@opensource.se> |
ARM: shmobile: Move EMEV2 CPU boot vector setup code
Move the boot vector setup code for the EMEV2 SoC to match
the sh73a0 and r8a7779 implementations. With this in place
all SoC specific SMP implementations for mach-shmobile uses
the ->smp_prepare_cpus() callback to setup the boot vector.
Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
|
| d62242d7f63d6c874f783d8a691534080df1cb59 |
|
12-Feb-2013 |
Magnus Damm <damm@opensource.se> |
ARM: shmobile: Remove partial CPU Hotplug from EMEV2
Remove partial CPU hotplug support from EMEV2 SMP code.
The upstream EMEV2 SMP support code has no CPU shutdown or
reset ability so we cannot reboot the secondary CPU cores.
Regular SMP operation is however still working as expected.
Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
|
| 520f7bd73354f003a9a59937b28e4903d985c420 |
|
27-Dec-2012 |
Rob Herring <rob.herring@calxeda.com> |
irqchip: Move ARM gic.h to include/linux/irqchip/arm-gic.h
Now that we have GIC moved to drivers/irqchip and all GIC DT init for
platforms using irqchip_init, move gic.h and update the remaining
includes.
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Anton Vorontsov <avorontsov@mvista.com>
Cc: Kukjin Kim <kgene.kim@samsung.com>
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: David Brown <davidb@codeaurora.org>
Cc: Daniel Walker <dwalker@fifo99.com>
Cc: Bryan Huntsman <bryanh@codeaurora.org>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: Magnus Damm <magnus.damm@gmail.com>
Cc: Viresh Kumar <viresh.linux@gmail.com>
Cc: Shiraz Hashim <shiraz.hashim@st.com>
Cc: Stephen Warren <swarren@wwwdotorg.org>
Cc: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Samuel Ortiz <sameo@linux.intel.com>
|
| b1cffebf1029c87e1f1984d48463ee21093a6bc7 |
|
26-Nov-2012 |
Rob Herring <rob.herring@calxeda.com> |
ARM: GIC: remove direct use of gic_raise_softirq
In preparation of moving gic code to drivers/irqchip, remove the direct
platform dependencies on gic_raise_softirq. Move the setup of
smp_cross_call into the gic code and use arch_send_wakeup_ipi_mask
function to trigger wake-up IPIs.
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Kukjin Kim <kgene.kim@samsung.com>
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: David Brown <davidb@codeaurora.org>
Cc: Daniel Walker <dwalker@fifo99.com>
Cc: Bryan Huntsman <bryanh@codeaurora.org>
Acked-by: Tony Lindgren <tony@atomide.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: Magnus Damm <magnus.damm@gmail.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Cc: Shiraz Hashim <shiraz.hashim@st.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Cc: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Olof Johansson <olof@lixom.net>
|
| 40937f7460041864c003d49b1f2ddcb32d5044f3 |
|
13-Nov-2012 |
Simon Horman <horms@verge.net.au> |
Revert "ARM: shmobile: emev2: Replace modify_scu_cpu_psr with scu_power_mode"
This reverts commit 865d90f80384d62e6fbe835159cb674dec32ccb5.
The code changes the flags of the wrong cpus - which breaks the whole
bootup of secondary CPUs.
Cc: Bastian Hecht <hechtb@gmail.com>
Signed-off-by: Simon Horman <horms@verge.net.au>
|
| 865d90f80384d62e6fbe835159cb674dec32ccb5 |
|
25-Oct-2012 |
Bastian Hecht <hechtb@googlemail.com> |
ARM: shmobile: emev2: Replace modify_scu_cpu_psr with scu_power_mode
We can remove the extra code of modify_scu_cpu_psr() and use the cleaner
generic ARM helper scu_power_mode(). As every CPU only deals with its
own power register and scu_power_mode() operates with 8-bit accesses,
we save the locking overhead too.
Signed-off-by: Bastian Hecht <hechtb@gmail.com>
Signed-off-by: Simon Horman <horms@verge.net.au>
|
| a62580e58065dc00430b16ced6e7a00837b8323f |
|
08-Sep-2011 |
Marc Zyngier <marc.zyngier@arm.com> |
ARM: SoC: convert shmobile SMP to SMP operations
Convert shmobile SMP platforms to use struct smp_operations to provide
their SMP and CPU hotplug operations.
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: Magnus Damm <magnus.damm@gmail.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Acked-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
|
| e91d5d916f50ad2cf2394aba89d32833adce4303 |
|
22-Aug-2012 |
Stephen Boyd <sboyd@codeaurora.org> |
ARM: 7498/1: mach-shmobile: Use SGI0 to wake secondary CPUs
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
|
| bd5a875d90c878be4d23f54ea565253734ae2377 |
|
16-May-2012 |
Magnus Damm <damm@opensource.se> |
mach-shmobile: Emma Mobile EV2 SMP support V3
This is V3 of Emma Mobile EV2 SMP support.
At this point only the most basic form of SMP operation
is supported. TWD and CPU Hotplug support is excluded.
Tied to both the Emma Mobile EV2 and the KZM9D board
due to the need to switch on board in platsmp.c and
the newly introduced need for static mappings.
The static mappings are needed to allow hardware
acces early during boot when SMP is initialized.
This early requirement forces us to also map in
the SMU registers.
Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
|