Add support for the Qualcomm IPQ40xx SoC in Kconfig.
Also add its appropriate textofs.
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
Signed-off-by: John Crispin <john@phrozen.org>
Tested-by: Robert Marko <robert.marko@sartura.hr>
Cc: Luka Perkov <luka.perkov@sartura.hr>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
request_irq() is preferred over setup_irq(). Invocations of setup_irq()
occur after memory allocators are ready.
Per tglx[1], setup_irq() existed in olden days when allocators were not
ready by the time early interrupts were initialized.
Hence replace setup_irq() by request_irq().
[1] https://lkml.kernel.org/r/alpine.DEB.2.20.1710191609480.1971@nanos
Link: https://lore.kernel.org/r/20200327124437.4239-1-afzal.mohd.ma@gmail.com
Signed-off-by: afzal mohammed <afzal.mohd.ma@gmail.com>
Acked-by: Lubomir Rintel <lkundrak@v3.sk>
Tested-by: Lubomir Rintel <lkundrak@v3.sk>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
request_irq() is preferred over setup_irq(). Invocations of setup_irq()
occur after memory allocators are ready.
Per tglx[1], setup_irq() existed in olden days when allocators were not
ready by the time early interrupts were initialized.
Hence replace setup_irq() by request_irq().
[1] https://lkml.kernel.org/r/alpine.DEB.2.20.1710191609480.1971@nanos
Link: https://lore.kernel.org/r/20200327124422.4181-1-afzal.mohd.ma@gmail.com
Signed-off-by: afzal mohammed <afzal.mohd.ma@gmail.com>
Acked-by: Krzysztof Halasa <khalasa@piap.pl>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
request_irq() is preferred over setup_irq(). Invocations of setup_irq()
occur after memory allocators are ready.
Per tglx[1], setup_irq() existed in olden days when allocators were not
ready by the time early interrupts were initialized.
Hence replace setup_irq() by request_irq().
[1] https://lkml.kernel.org/r/alpine.DEB.2.20.1710191609480.1971@nanos
Link: https://lore.kernel.org/r/20200327124406.4123-1-afzal.mohd.ma@gmail.com
Signed-off-by: afzal mohammed <afzal.mohd.ma@gmail.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
request_irq() is preferred over setup_irq(). Invocations of setup_irq()
occur after memory allocators are ready.
Per tglx[1], setup_irq() existed in olden days when allocators were not
ready by the time early interrupts were initialized.
Hence replace setup_irq() by request_irq().
[1] https://lkml.kernel.org/r/alpine.DEB.2.20.1710191609480.1971@nanos
Link: https://lore.kernel.org/r/20200327124143.3520-1-afzal.mohd.ma@gmail.com
Signed-off-by: afzal mohammed <afzal.mohd.ma@gmail.com>
Acked-by: Alexander Sverdlin <alexander.sverdlin@gmail.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
These changes unify CPU idle support for Tegra20, Tegra30 and Tegra114.
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Merge tag 'tegra-for-5.7-cpuidle' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into arm/soc
cpuidle: tegra: Changes for v5.7-rc1
These changes unify CPU idle support for Tegra20, Tegra30 and Tegra114.
* tag 'tegra-for-5.7-cpuidle' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux:
cpuidle: tegra: Disable CC6 state if LP2 unavailable
cpuidle: tegra: Squash Tegra114 driver into the common driver
cpuidle: tegra: Squash Tegra30 driver into the common driver
cpuidle: Refactor and move out NVIDIA Tegra20 driver into drivers/cpuidle
Link: https://lore.kernel.org/r/20200313165848.2915133-9-thierry.reding@gmail.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
- A number of cleanups from Anson Huang to remove unneeded includes,
drop unnecessary newlines and base check etc.
- Apply Cortex-A9 specific errata only to Cortex-A9 based i.MX SoCs
and avoid impacting Cortex-A7 based designs.
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Merge tag 'imx-soc-5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into arm/soc
i.MX SoC changes for 5.7:
- A number of cleanups from Anson Huang to remove unneeded includes,
drop unnecessary newlines and base check etc.
- Apply Cortex-A9 specific errata only to Cortex-A9 based i.MX SoCs
and avoid impacting Cortex-A7 based designs.
* tag 'imx-soc-5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
ARM: imx: Drop unnecessary src_base check
ARM: imx: Remove unnecessary blank lines
ARM: imx: Add missing of_node_put()
ARM: imx: Remove unused include of linux/of.h on mach-imx6sl.c
ARM: imx: Remove unused includes on mach-imx6q.c
ARM: imx: Remove unused include of linux/irqchip/arm-gic.h
ARM: imx: limit errata selection to Cortex-A9 based designs
Link: https://lore.kernel.org/r/20200318051918.32579-2-shawnguo@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Various cleanup:
On Orion5x:
- Drop unneeded select of PCI_DOMAINS_GENERIC
- Remove unneeded variable ret
- Replace setup_irq() by request_irq()
On Dove: Mark dove_io_desc as __maybe_unused
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Merge tag 'mvebu-arm-5.7-1' of git://git.infradead.org/linux-mvebu into arm/soc
mvebu arm for 5.6 (part 1)
Various cleanup:
On Orion5x:
- Drop unneeded select of PCI_DOMAINS_GENERIC
- Remove unneeded variable ret
- Replace setup_irq() by request_irq()
On Dove: Mark dove_io_desc as __maybe_unused
* tag 'mvebu-arm-5.7-1' of git://git.infradead.org/linux-mvebu:
arm: mach-dove: Mark dove_io_desc as __maybe_unused
ARM: orion: replace setup_irq() by request_irq()
ARM: orion5x: ts78xx: Remove unneeded variable ret
ARM: orion5x: Drop unneeded select of PCI_DOMAINS_GENERIC
Link: https://lore.kernel.org/r/87eetux7um.fsf@FE-laptop
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
These patches a preparatory work to move the CPU idle drivers into
drivers/cpuidle.
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Merge tag 'tegra-for-5.7-arm-core' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into arm/soc
ARM: tegra: Core changes for v5.7-rc1
These patches a preparatory work to move the CPU idle drivers into
drivers/cpuidle.
* tag 'tegra-for-5.7-arm-core' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux:
ARM: tegra: cpuidle: Remove unnecessary memory barrier
ARM: tegra: cpuidle: Make abort_flag atomic
ARM: tegra: cpuidle: Handle case where secondary CPU hangs on entering LP2
ARM: tegra: Make outer_disable() open-coded
ARM: tegra: Rename some of the newly exposed PM functions
ARM: tegra: Expose PM functions required for new cpuidle driver
ARM: tegra: Propagate error from tegra_idle_lp2_last()
ARM: tegra: Change tegra_set_cpu_in_lp2() type to void
ARM: tegra: Remove pen-locking from cpuidle-tegra20
ARM: tegra: Add tegra_pm_park_secondary_cpu()
ARM: tegra: Compile sleep-tegra20/30.S unconditionally
Link: https://lore.kernel.org/r/20200313165848.2915133-5-thierry.reding@gmail.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Highlights:
----------
- Add early console support for all STM32 SoCs: F4/F7/H7/MP1
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Merge tag 'stm32-soc-for-v5.7-1' of git://git.kernel.org/pub/scm/linux/kernel/git/atorgue/stm32 into arm/soc
STM32 SoC updates for v5.7, round 1
Highlights:
----------
- Add early console support for all STM32 SoCs: F4/F7/H7/MP1
* tag 'stm32-soc-for-v5.7-1' of git://git.kernel.org/pub/scm/linux/kernel/git/atorgue/stm32:
ARM: debug: stm32: add UART early console support for STM32MP1
ARM: debug: stm32: add UART early console support for STM32H7
ARM: debug: stm32: add UART early console configuration for STM32F7
ARM: debug: stm32: add UART early console configuration for STM32F4
Link: https://lore.kernel.org/r/4e427e37-99c9-239a-f3f8-a3bf50eb1eb2@st.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Just one change for our mach code for including the correct clk header.
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Merge tag 'sunxi-core-for-5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux into arm/soc
Allwinner Core Changes for v5.7
Just one change for our mach code for including the correct clk header.
* tag 'sunxi-core-for-5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux:
ARM: sunxi: Replace <linux/clk-provider.h> by <linux/of_clk.h>
Link: https://lore.kernel.org/r/20200313055342.GA19760@wens.csie.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
please pull the following:
- Geert drops redundant selects for Broadcom SoCs which are already
implied by ARCH_MULTI_V6_V7
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Merge tag 'arm-soc/for-5.7/soc' of https://github.com/Broadcom/stblinux into arm/soc
This pull request contains Broadcom ARM-based SoCs changes for 5.7,
please pull the following:
- Geert drops redundant selects for Broadcom SoCs which are already
implied by ARCH_MULTI_V6_V7
* tag 'arm-soc/for-5.7/soc' of https://github.com/Broadcom/stblinux:
ARM: bcm: Drop unneeded select of PCI_DOMAINS_GENERIC, HAVE_SMP, TIMER_OF
Link: https://lore.kernel.org/r/20200311212012.9418-3-f.fainelli@gmail.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
A series of changes from Dave Gerlach to enable basic cpuidle support
for am335x and am437x based on generic cpuidle-arm driver.
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Merge tag 'omap-for-v5.7/pm33xx-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into arm/soc
PM changes for am335x and am437x for v5.7 merge window
A series of changes from Dave Gerlach to enable basic cpuidle support
for am335x and am437x based on generic cpuidle-arm driver.
* tag 'omap-for-v5.7/pm33xx-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: omap2plus_defconfig: Add CONFIG_ARM_CPUIDLE
soc: ti: pm33xx: Add base cpuidle support
ARM: OMAP2+: pm33xx-core: Extend platform_data ops for cpuidle
ARM: OMAP2+: pm33xx-core: Add cpuidle_ops for am335x/am437x
dt-bindings: arm: cpu: Add TI AM335x and AM437x enable method
Link: https://lore.kernel.org/r/pull-1583511417-919838@atomide.com-2
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
A change to improve the warning output for device tree data
mismatch as compared to legacy platform data for ti-sysc
related interconnect target modules.
And change omap1 to request_irq() instead of setup_irq().
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Merge tag 'omap-for-v5.7/soc-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into arm/soc
SoC changes for omaps for v5.7 merge window
A change to improve the warning output for device tree data
mismatch as compared to legacy platform data for ti-sysc
related interconnect target modules.
And change omap1 to request_irq() instead of setup_irq().
* tag 'omap-for-v5.7/soc-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: OMAP: replace setup_irq() by request_irq()
ARM: OMAP2+: Improve handling of ti-sysc related sysc_fields
Link: https://lore.kernel.org/r/pull-1583511417-919838@atomide.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
- Enable ARM global timer on Cortex-A9 MPCore SoCs,
- A minor cleanup.
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Merge tag 'renesas-arm-soc-for-v5.7-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-devel into arm/soc
Renesas ARM SoC updates for v5.7
- Enable ARM global timer on Cortex-A9 MPCore SoCs,
- A minor cleanup.
* tag 'renesas-arm-soc-for-v5.7-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-devel:
ARM: shmobile: Replace <linux/clk-provider.h> by <linux/of_clk.h>
ARM: shmobile: Enable ARM_GLOBAL_TIMER on Cortex-A9 MPCore SoCs
Link: https://lore.kernel.org/r/20200226110221.19288-3-geert+renesas@glider.be
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Without this, we get the warnings below when CONFIG_MMU is disabled:
linux/arch/arm/mach-dove/common.c:51:24: warning: ‘dove_io_desc’ defined
but not used [-Wunused-variable]
static struct map_desc dove_io_desc[] __initdata = {
^~~~~~~~~~~~
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Andrew Lunn <andrew@lunn.ch>
Cc: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Cc: Gregory Clement <gregory.clement@bootlin.com>
Cc: Russell King <linux@armlinux.org.uk>
Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
request_irq() is preferred over setup_irq(). Invocations of setup_irq()
occur after memory allocators are ready.
Per tglx[1], setup_irq() existed in olden days when allocators were not
ready by the time early interrupts were initialized.
Hence replace setup_irq() by request_irq().
[1] https://lkml.kernel.org/r/alpine.DEB.2.20.1710191609480.1971@nanos
Signed-off-by: afzal mohammed <afzal.mohd.ma@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
Add support of early console for STM32MP1. Default UART instance is UART4,
but other UART instances can be configured by setting physical and virtual
base addresses in menuconfig.
Signed-off-by: Erwan Le Ray <erwan.leray@st.com>
Signed-off-by: Alexandre Torgue <alexandre.torgue@st.com>
Add support of early console for STM32H7. Default UART instance is USART1,
but other UART instances can be configured by setting physical and virtual
base addresses in menuconfig.
Signed-off-by: Erwan Le Ray <erwan.leray@st.com>
Signed-off-by: Alexandre Torgue <alexandre.torgue@st.com>
Early console is hardcoded on USART1 in current implementation.
With this patch, default UART instance is USART1, but other UART instances
can be configured by setting physical and virtual base addresses in
menuconfig.
Signed-off-by: Erwan Le Ray <erwan.leray@st.com>
Signed-off-by: Alexandre Torgue <alexandre.torgue@st.com>
Early console is hardcoded on USART1 in current implementation.
With this patch, default UART instance is USART1, but other UART instances
can be configured by setting physical and virtual base addresses in
menuconfig.
Signed-off-by: Erwan Le Ray <erwan.leray@st.com>
Signed-off-by: Alexandre Torgue <alexandre.torgue@st.com>
Tegra20/30/114/124 SoCs have common idling states, thus there is no much
point in having separate drivers for a similar hardware. This patch moves
Tegra114/124 arch/ drivers into the common driver without any functional
changes. The CC6 state is kept disabled on Tegra114/124 because the core
Tegra PM code needs some more work in order to support that state.
Acked-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Tegra20 and Terga30 SoCs have common C1 and CC6 idling states and thus
share the same code paths, there is no point in having separate drivers
for a similar hardware. This patch merely moves functionality of the old
driver into the new, although the CC6 state is kept disabled for now since
old driver had a rudimentary support for this state (allowing to enter
into CC6 only when secondary CPUs are put offline), while new driver can
provide a full-featured support. The new feature will be enabled by
another patch.
Acked-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Tested-by: Peter Geis <pgwipeout@gmail.com>
Tested-by: Jasper Korten <jja2000@gmail.com>
Tested-by: David Heidelberg <david@ixit.cz>
Tested-by: Nicolas Chauvet <kwizart@gmail.com>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
The driver's code is refactored in a way that will make it easy to
support Tegra30/114/124 SoCs by this unified driver later on. The
current functionality is equal to the old Tegra20 driver, only the
code's structure changed a tad. This is also a proper platform driver
now.
Acked-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
There is no good justification for smp_rmb() after returning from LP2
because there are no memory operations that require SMP synchronization.
Thus remove the confusing barrier.
Acked-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Tested-by: Peter Geis <pgwipeout@gmail.com>
Tested-by: Jasper Korten <jja2000@gmail.com>
Tested-by: David Heidelberg <david@ixit.cz>
Tested-by: Nicolas Chauvet <kwizart@gmail.com>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Replace memory accessors with atomic API just to make code consistent
with the abort_barrier. The new variant may be even more correct now
since atomic_read() will prevent compiler from generating wrong things
like carrying abort_flag value in a register instead of re-fetching it
from memory.
Acked-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Tested-by: Peter Geis <pgwipeout@gmail.com>
Tested-by: Jasper Korten <jja2000@gmail.com>
Tested-by: David Heidelberg <david@ixit.cz>
Tested-by: Nicolas Chauvet <kwizart@gmail.com>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
It is possible that something may go wrong with the secondary CPU, in
that case it is much nicer to get a dump of the flow-controller state
before hanging machine.
Acked-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Tested-by: Peter Geis <pgwipeout@gmail.com>
Tested-by: Jasper Korten <jja2000@gmail.com>
Tested-by: David Heidelberg <david@ixit.cz>
Tested-by: Nicolas Chauvet <kwizart@gmail.com>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
The outer_disable() of Tegra's suspend code is open-coded now since
that helper produces spurious warning message about secondary CPUs being
online when CPU enters into LP2 from cpuidle. The secondaries are actually
halted by the cpuidle driver on entering into LP2 idle-state, but the
online status is not touched by the cpuidle. This fixes a storm of
warnings once LP2 idling state is enabled on Tegra30. The outer_disable()
helper has sanity checks for interrupts and secondary CPUs being disabled
and we are pretty confident about the interrupts state during of CPU
idling / system suspend. The rail-off status check is added in this patch
as equivalent for the "num_online_cpus() > 1".
Acked-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Tested-by: Peter Geis <pgwipeout@gmail.com>
Tested-by: Jasper Korten <jja2000@gmail.com>
Tested-by: David Heidelberg <david@ixit.cz>
Tested-by: Nicolas Chauvet <kwizart@gmail.com>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Rename some of the recently exposed PM functions, prefixing them with
"tegra_pm_" in order to make the naming of the PM functions consistent.
Acked-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Tested-by: Peter Geis <pgwipeout@gmail.com>
Tested-by: Jasper Korten <jja2000@gmail.com>
Tested-by: David Heidelberg <david@ixit.cz>
Tested-by: Nicolas Chauvet <kwizart@gmail.com>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
The upcoming unified CPUIDLE driver will be added to the drivers/cpuidle/
directory and it will require all these exposed Tegra PM-core functions.
Acked-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Tested-by: Peter Geis <pgwipeout@gmail.com>
Tested-by: Jasper Korten <jja2000@gmail.com>
Tested-by: David Heidelberg <david@ixit.cz>
Tested-by: Nicolas Chauvet <kwizart@gmail.com>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
[treding@nvidia.com: fixup missing include rename]
Signed-off-by: Thierry Reding <treding@nvidia.com>
Technically cpu_suspend() may fail and it's never good to lose information
about failure. For example things like cpuidle core could correctly sample
idling time in the case of failure.
Acked-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Tested-by: Peter Geis <pgwipeout@gmail.com>
Tested-by: Jasper Korten <jja2000@gmail.com>
Tested-by: David Heidelberg <david@ixit.cz>
Tested-by: Nicolas Chauvet <kwizart@gmail.com>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
The Tegra30 CPUIDLE driver has intention to check whether primary CPU was
the last CPU that entered LP2 (CC6) idle-state, but that functionality
never got utilized because driver never supported the CC6 state for the
case where any secondary CPU is online. The new cpuidle driver will
properly support CC6 on Tegra30, including the case where secondary CPUs
are online, and that knowledge about what CPUs entered into CC6 won't be
needed at all because new driver will use different approach by making use
of the coupled idle-state and explicitly parking secondary CPUs before
entering into CC6. Thus this patch is just a minor cleanup change.
Acked-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Tested-by: Peter Geis <pgwipeout@gmail.com>
Tested-by: Jasper Korten <jja2000@gmail.com>
Tested-by: David Heidelberg <david@ixit.cz>
Tested-by: Nicolas Chauvet <kwizart@gmail.com>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Pen-locking is meant to block CPU0 if CPU1 wakes up during of entering
into LP2 because of some interrupt firing up, preventing unnecessary LP2
enter that will be resumed immediately. Apparently this case doesn't
happen often in practice, I checked how often it takes place and found
that after ~20 hours of browsing web, managing email, watching videos and
idling (15+ hours) there is only a dozen of early LP2 entering abortions
and they all happened while device was idling. Thus let's remove the
pen-locking and make LP2 entering uninterruptible, simplifying code quite
a lot. This will also become very handy for the upcoming unified cpuidle
driver, allowing to have a common LP2 code-path across of different
hardware generations.
Acked-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Tested-by: Peter Geis <pgwipeout@gmail.com>
Tested-by: Jasper Korten <jja2000@gmail.com>
Tested-by: David Heidelberg <david@ixit.cz>
Tested-by: Nicolas Chauvet <kwizart@gmail.com>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
This function resembles tegra_cpu_die() of the hotplug code, but
this variant is more suitable to be used for CPU PM because it's made
specifically to be used by cpu_suspend(). In short this function puts
secondary CPU offline, it will be used by the new CPUIDLE driver.
Acked-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Tested-by: Peter Geis <pgwipeout@gmail.com>
Tested-by: Jasper Korten <jja2000@gmail.com>
Tested-by: David Heidelberg <david@ixit.cz>
Tested-by: Nicolas Chauvet <kwizart@gmail.com>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
The sleep-tegra*.S provides functionality required for suspend/resume
and CPU hotplugging. The new unified CPUIDLE driver will support multiple
hardware generations starting from Terga20 and ending with Tegra124, the
driver will utilize functions that are provided by the assembly and thus
it is cleaner to compile that code without any build-dependencies in order
to avoid churning with #ifdef's.
Acked-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Tested-by: Peter Geis <pgwipeout@gmail.com>
Tested-by: Jasper Korten <jja2000@gmail.com>
Tested-by: David Heidelberg <david@ixit.cz>
Tested-by: Nicolas Chauvet <kwizart@gmail.com>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
src_base is already checked during src driver initialization, no
need to check its availability again when using it.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Support for Broadcom SoCs depends on ARCH_MULTI_V6_V7, and thus on
ARCH_MULTIPLATFORM, which selects PCI_DOMAINS_GENERIC and TIMER_OF.
Support for the various Broadcom IPROC architected SoCs depends on
ARCH_MULTI_V7, which selects HAVE_SMP.
Hence there is no need for the Broadcom-specific symbols to select any
of them.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: Ray Jui <rjui@broadcom.com>
Cc: Scott Branden <sbranden@broadcom.com>
Cc: bcm-kernel-feedback-list@broadcom.com
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Remove unneeded variable ret used to store return value,just return 0.
Signed-off-by: Xu Wang <vulab@iscas.ac.cn>
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
Support for Marvell Orion SoCs depends on ARCH_MULTI_V5, and thus on
ARCH_MULTIPLATFORM.
As the latter selects GENERIC_CLOCKEVENTS and USE_OF, there is no need
for ARCH_ORION5X and ARCH_ORION5X_DT to select any of them.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Andrew Lunn <andrew@lunn.ch>
Cc: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Cc: Gregory Clement <gregory.clement@bootlin.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
request_irq() is preferred over setup_irq(). Invocations of setup_irq()
occur after memory allocators are ready.
Per tglx[1], setup_irq() existed in olden days when allocators were not
ready by the time early interrupts were initialized.
Hence replace setup_irq() by request_irq().
[1] https://lkml.kernel.org/r/alpine.DEB.2.20.1710191609480.1971@nanos
Signed-off-by: afzal mohammed <afzal.mohd.ma@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
as too large frame sizes on some configurations. On the
ARM side, the compiler was messing up shadow stacks between
EL1 and EL2 code, which is easily fixed with __always_inline.
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull KVM fixes from Paolo Bonzini:
"More bugfixes, including a few remaining "make W=1" issues such as too
large frame sizes on some configurations.
On the ARM side, the compiler was messing up shadow stacks between EL1
and EL2 code, which is easily fixed with __always_inline"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: VMX: check descriptor table exits on instruction emulation
kvm: x86: Limit the number of "kvm: disabled by bios" messages
KVM: x86: avoid useless copy of cpufreq policy
KVM: allow disabling -Werror
KVM: x86: allow compiling as non-module with W=1
KVM: Pre-allocate 1 cpumask variable per cpu for both pv tlb and pv ipis
KVM: Introduce pv check helpers
KVM: let declaration of kvm_get_running_vcpus match implementation
KVM: SVM: allocate AVIC data structures based on kvm_amd module parameter
arm64: Ask the compiler to __always_inline functions used by KVM at HYP
KVM: arm64: Define our own swab32() to avoid a uapi static inline
KVM: arm64: Ask the compiler to __always_inline functions used at HYP
kvm: arm/arm64: Fold VHE entry/exit work into kvm_vcpu_run_vhe()
KVM: arm/arm64: Fix up includes for trace.h
- Fix compilation on 32bit
- Move VHE guest entry/exit into the VHE-specific entry code
- Make sure all functions called by the non-VHE HYP code is tagged as __always_inline
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Merge tag 'kvmarm-fixes-5.6-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD
KVM/arm fixes for 5.6, take #1
- Fix compilation on 32bit
- Move VHE guest entry/exit into the VHE-specific entry code
- Make sure all functions called by the non-VHE HYP code is tagged as __always_inline
Add CONFIG_ARM_CPUIDLE and supporting CONFIG_DT_IDLE_STATES as am335x
and am437x will make use of these drivers.
Acked-by: Santosh Shilimkar <ssantosh@kernel.org>
Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
Acked-by: Santosh Shilimkar <ssantosh@kernel.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
In order for am335x and am437x to properly enter deeper c-states in
cpuidle they must always call into the sleep33/43xx suspend code and
also sometimes invoke the wkup_m3_ipc driver. These are both controlled
by the pm33xx module so we must provide a method for the platform code
to call back into the module when it is available as the core cpuidle
ops that are invoked by the cpuidle-arm driver must remain as built in.
Extend the init platform op to take an idle function as an argument so
that we can use this to call into the pm33xx module for c-states that
need it. Also add a deinit op so we can unregister this idle function
from the PM core when the pm33xx module gets unloaded.
Acked-by: Santosh Shilimkar <ssantosh@kernel.org>
Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
Acked-by: Santosh Shilimkar <ssantosh@kernel.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
am335x and am437x can now make use of the generic cpuidle-arm driver.
This requires that we define init and suspend ops to be passed set as
the cpuidle ops for the SoC. These ops are invoked directly at the last
stage of the cpuidle-arm driver in order to allow low level platform
code to run and bring the CPU the rest of the way into it's desired idle
state. It is required that the CPUIDLE_METHOD_OF_DECLARE be called from
code that is built in so define these ops in pm33xx-core where the
always built-in portion of the PM code for these SoCs lives.
Additionally, although an soc_suspend function is already exposed by the
pm33xx platform code, it contains additional operations needed for full
SoC suspend beyond what is needed for a relatively simple CPU suspend
needed during cpuidle. To get around this introduce cpu_suspend ops to
be used by the am335x and am437x PM driver for the last stage of cpuidle
path.
Acked-by: Santosh Shilimkar <ssantosh@kernel.org>
Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
Acked-by: Santosh Shilimkar <ssantosh@kernel.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
