Merge branch 'for-5.15-printk-index' into for-linus

Merge tag 'irqchip-5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms into irq/core

Pull irqchip updates from Marc Zyngier:

- API updates:

- Treewide conversion to generic_

Merge tag 'irqchip-5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms into irq/core

Pull irqchip updates from Marc Zyngier:

- API updates:

- Treewide conversion to generic_handle_domain_irq() for anything
that looks like a chained interrupt controller

- Update the irqdomain documentation

- Use of bitmap_zalloc() throughout the tree

- New functionalities:

- Support for GICv3 EPPI partitions

- Fixes:

- Qualcomm PDC hierarchy fixes

- Yet another priority decoding fix for the GICv3 pseudo-NMIs

- Fix the apple-aic driver irq_eoi() callback to always unmask
the interrupt

- Properly handle edge interrupts on loongson-pch-pic

- Let the mtk-sysirq driver advertise IRQCHIP_SKIP_SET_WAKE

Link: https://lore.kernel.org/r/20210828121013.2647964-1-maz@kernel.org

show more ...

Merge branch 'perf/urgent' into perf/core, to pick up fixes

Signed-off-by: Ingo Molnar <mingo@kernel.org>

Merge branch irq/qcom-pdc-nowake-cleanup into irq/irqchip-next

* irq/qcom-pdc-nowake-cleanup:
: Fix the QCOM PDC mishandling of the interrupt hierarchy by trimming
: it when necessary.
: Expor

Merge branch irq/qcom-pdc-nowake-cleanup into irq/irqchip-next

* irq/qcom-pdc-nowake-cleanup:
: Fix the QCOM PDC mishandling of the interrupt hierarchy by trimming
: it when necessary.
: Export irq_domain_disconnect_hierarchy as a consequence of it.
irqchip/qcom-pdc: Trim unused levels of the interrupt hierarchy
irqdomain: Export irq_domain_disconnect_hierarchy()

Signed-off-by: Marc Zyngier <maz@kernel.org>

show more ...

irqdomain: Export irq_domain_disconnect_hierarchy()

Export irq_domain_disconnect_hierarchy() so irqchip module drivers
can use it.

Signed-off-by: Maulik Shah <mkshah@codeaurora.org>
Signed-off-by:

irqdomain: Export irq_domain_disconnect_hierarchy()

Export irq_domain_disconnect_hierarchy() so irqchip module drivers
can use it.

Signed-off-by: Maulik Shah <mkshah@codeaurora.org>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/1629705880-27877-2-git-send-email-mkshah@codeaurora.org

show more ...

Merge tag 'v5.14-rc6' into locking/core, to pick up fixes

Signed-off-by: Ingo Molnar <mingo@kernel.org>

KVM: PPC: Book3S HV: XIVE: Fix mapping of passthrough interrupts

PCI MSI interrupt numbers are now mapped in a PCI-MSI domain but the
underlying calls handling the passthrough of the interrupt in th

KVM: PPC: Book3S HV: XIVE: Fix mapping of passthrough interrupts

PCI MSI interrupt numbers are now mapped in a PCI-MSI domain but the
underlying calls handling the passthrough of the interrupt in the
guest need a number in the XIVE IRQ domain.

Use the IRQ data mapped in the XIVE IRQ domain and not the one in the
PCI-MSI domain.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20210701132750.1475580-16-clg@kaod.org

show more ...

Backmerge remote-tracking branch 'drm/drm-next' into drm-misc-next

Required bump from v5.13-rc3 to v5.14-rc3, and to pick up sysfb compilation fixes.

Signed-off-by: Maarten Lankhorst <maarten.lankh

Backmerge remote-tracking branch 'drm/drm-next' into drm-misc-next

Required bump from v5.13-rc3 to v5.14-rc3, and to pick up sysfb compilation fixes.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>

show more ...

Merge branch 'fixes-v5.14' into fixes

Merge tag 'v5.13' into next

Sync up with the mainline to get the latest parport API.

Merge drm/drm-next into drm-intel-gt-next

Catching up with 5.14-rc1 and also preparing for a
needed common topic branch for the "Minor revid/stepping
and workaround cleanup"

Reference: https://patc

Merge drm/drm-next into drm-intel-gt-next

Catching up with 5.14-rc1 and also preparing for a
needed common topic branch for the "Minor revid/stepping
and workaround cleanup"

Reference: https://patchwork.freedesktop.org/series/92299/
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>

show more ...

Merge drm/drm-next into drm-intel-next

Catching up with 5.14-rc1

Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>

Merge branch 'cpufreq/cppc-fie' into cpufreq/arm/linux-next

Merge remote-tracking branch 'torvalds/master' into perf/core

To pick up fixes.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

Merge branch 'for-5.14/amd-sfh' into for-linus

- support for Renoir and Cezanne SoCs
- support for Ambient Light Sensor
- support for Human Presence Detection sensor

all from Basavaraj Natikar

Merge tag 'irq-core-2021-06-29' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull irq updates from Thomas Gleixner:
"Updates for the interrupt subsystem:

Core changes:

- Cleanup

Merge tag 'irq-core-2021-06-29' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull irq updates from Thomas Gleixner:
"Updates for the interrupt subsystem:

Core changes:

- Cleanup and simplification of common code to invoke the low level
interrupt flow handlers when this invocation requires irqdomain
resolution. Add the necessary core infrastructure.

- Provide a proper interface for modular PMU drivers to set the
interrupt affinity.

- Add a request flag which allows to exclude interrupts from spurious
interrupt detection. Useful especially for IPI handlers which
always return IRQ_HANDLED which turns the spurious interrupt
detection into a pointless waste of CPU cycles.

Driver changes:

- Bulk convert interrupt chip drivers to the new irqdomain low level
flow handler invocation mechanism.

- Add device tree bindings for the Renesas R-Car M3-W+ SoC

- Enable modular build of the Qualcomm PDC driver

- The usual small fixes and improvements"

* tag 'irq-core-2021-06-29' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (38 commits)
dt-bindings: interrupt-controller: arm,gic-v3: Describe GICv3 optional properties
irqchip: gic-pm: Remove redundant error log of clock bulk
irqchip/sun4i: Remove unnecessary oom message
irqchip/irq-imx-gpcv2: Remove unnecessary oom message
irqchip/imgpdc: Remove unnecessary oom message
irqchip/gic-v3-its: Remove unnecessary oom message
irqchip/gic-v2m: Remove unnecessary oom message
irqchip/exynos-combiner: Remove unnecessary oom message
irqchip: Bulk conversion to generic_handle_domain_irq()
genirq: Move non-irqdomain handle_domain_irq() handling into ARM's handle_IRQ()
genirq: Add generic_handle_domain_irq() helper
irqchip/nvic: Convert from handle_IRQ() to handle_domain_irq()
irqdesc: Fix __handle_domain_irq() comment
genirq: Use irq_resolve_mapping() to implement __handle_domain_irq() and co
irqdomain: Introduce irq_resolve_mapping()
irqdomain: Protect the linear revmap with RCU
irqdomain: Cache irq_data instead of a virq number in the revmap
irqdomain: Use struct_size() helper when allocating irqdomain
irqdomain: Make normal and nomap irqdomains exclusive
powerpc: Move the use of irq_domain_add_nomap() behind a config option
...

show more ...

Merge tag 'irqchip-5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms into irq/core

Pull irqchip updates from Marc Zyngier:

- Revamped the irqdomain internals to consistently

Merge tag 'irqchip-5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms into irq/core

Pull irqchip updates from Marc Zyngier:

- Revamped the irqdomain internals to consistently cache irqdata

- Expose a new API to simplify IRQ handling involving an irqdomain by
not using the IRQ number

- Convert all the irqchip drivers to this new API

- Allow the Qualcomm PDC driver to be compiled as a module

- Fix HiSi MBIGEN compile warning when CONFIG_ACPI isn't selected

- Remove a bunch of spurious printks on error paths

- The obligatory couple of DT updates

show more ...

Merge branch irq/generic_handle_domain_irq-core into irq/irqchip-next

Simplify the handling of interrupts that require an IRQ domain
resolution:
- domains now cache the irqdata instead of the irq nu

Merge branch irq/generic_handle_domain_irq-core into irq/irqchip-next

Simplify the handling of interrupts that require an IRQ domain
resolution:
- domains now cache the irqdata instead of the irq number
- consistent behaviour wrt RCU
- single lookup for architectures using sparse IRQs
- reduced boilerplate code in drivers.

* irq/generic_handle_domain_irq-core: (26 commits)
irqchip: Bulk conversion to generic_handle_domain_irq()
genirq: Move non-irqdomain handle_domain_irq() handling into ARM's handle_IRQ()
genirq: Add generic_handle_domain_irq() helper
irqchip/nvic: Convert from handle_IRQ() to handle_domain_irq()
irqdesc: Fix __handle_domain_irq() comment
genirq: Use irq_resolve_mapping() to implement __handle_domain_irq() and co
irqdomain: Introduce irq_resolve_mapping()
irqdomain: Protect the linear revmap with RCU
irqdomain: Cache irq_data instead of a virq number in the revmap
irqdomain: Use struct_size() helper when allocating irqdomain
irqdomain: Make normal and nomap irqdomains exclusive
powerpc: Move the use of irq_domain_add_nomap() behind a config option
irqdomain: Reimplement irq_linear_revmap() with irq_find_mapping()
irqdomain: Kill irq_domain_add_legacy_isa
powerpc: Drop dependency between asm/irq.h and linux/irqdomain.h
powerpc: Convert irq_domain_add_legacy_isa use to irq_domain_add_legacy
scsi/ibmvscsi: Directly include linux/{of.h,irqdomain.h}
powerpc: Add missing linux/{of.h,irqdomain.h} include directives
MIPS: Do not include linux/irqdomain.h from asm/irq.h
MIPS: Add missing linux/irqdomain.h includes
...

show more ...

irqdomain: Introduce irq_resolve_mapping()

Rework irq_find_mapping() to return an both an irq_desc pointer,
optionally the virtual irq number, and rename the result to
__irq_resolve_mapping(). a new

irqdomain: Introduce irq_resolve_mapping()

Rework irq_find_mapping() to return an both an irq_desc pointer,
optionally the virtual irq number, and rename the result to
__irq_resolve_mapping(). a new helper called irq_resolve_mapping()
is provided for code that doesn't need the virtual irq number.

irq_find_mapping() is also rewritten in terms of __irq_resolve_mapping().

Signed-off-by: Marc Zyngier <maz@kernel.org>

show more ...

irqdomain: Protect the linear revmap with RCU

It is pretty odd that the radix tree uses RCU while the linear
portion doesn't, leading to potential surprises for the users,
depending on how the irqdo

irqdomain: Protect the linear revmap with RCU

It is pretty odd that the radix tree uses RCU while the linear
portion doesn't, leading to potential surprises for the users,
depending on how the irqdomain has been created.

Fix this by moving the update of the linear revmap under
the mutex, and the lookup under the RCU read-side lock.

The mutex name is updated to reflect that it doesn't only
cover the radix-tree anymore.

Signed-off-by: Marc Zyngier <maz@kernel.org>

show more ...

irqdomain: Cache irq_data instead of a virq number in the revmap

Caching a virq number in the revmap is pretty inefficient, as
it means we will need to convert it back to either an irq_data
or irq_d

irqdomain: Cache irq_data instead of a virq number in the revmap

Caching a virq number in the revmap is pretty inefficient, as
it means we will need to convert it back to either an irq_data
or irq_desc to do anything with it.

It is also a bit odd, as the radix tree does cache irq_data
pointers.

Change the revmap type to be an irq_data pointer instead of
an unsigned int, and preserve the current API for now.

Signed-off-by: Marc Zyngier <maz@kernel.org>

show more ...

irqdomain: Use struct_size() helper when allocating irqdomain

Instead of open-coding the size computation of struct irqdomain,
use the struct_size() helper instead.

This is going to be handy as we

irqdomain: Use struct_size() helper when allocating irqdomain

Instead of open-coding the size computation of struct irqdomain,
use the struct_size() helper instead.

This is going to be handy as we change the type of the revmap
array.

Signed-off-by: Marc Zyngier <maz@kernel.org>

show more ...

irqdomain: Make normal and nomap irqdomains exclusive

Direct mappings are completely exclusive of normal mappings, meaning
that we can refactor the code slightly so that we can get rid of
the revmap

irqdomain: Make normal and nomap irqdomains exclusive

Direct mappings are completely exclusive of normal mappings, meaning
that we can refactor the code slightly so that we can get rid of
the revmap_direct_max_irq field and use the revmap_size field
instead, reducing the size of the irqdomain structure.

Signed-off-by: Marc Zyngier <maz@kernel.org>

show more ...

powerpc: Move the use of irq_domain_add_nomap() behind a config option

Only a handful of old PPC systems are still using the old 'nomap'
variant of the irqdomain library. Move the associated definit

powerpc: Move the use of irq_domain_add_nomap() behind a config option

Only a handful of old PPC systems are still using the old 'nomap'
variant of the irqdomain library. Move the associated definitions
behind a configuration option, which will allow us to make some
more radical changes.

Signed-off-by: Marc Zyngier <maz@kernel.org>

show more ...

irqdomain: Reimplement irq_linear_revmap() with irq_find_mapping()

irq_linear_revmap() is supposed to be a fast path for domain
lookups, but it only exposes low-level details of the irqdomain
implem

irqdomain: Reimplement irq_linear_revmap() with irq_find_mapping()

irq_linear_revmap() is supposed to be a fast path for domain
lookups, but it only exposes low-level details of the irqdomain
implementation, details which are better kept private.

The *overhead* between the two is only a function call and
a couple of tests, so it is likely that noone can show any
meaningful difference compared to the cost of taking an
interrupt.

Reimplement irq_linear_revmap() with irq_find_mapping()
in order to preserve source code compatibility, and
rename the internal field for a measure.

Signed-off-by: Marc Zyngier <maz@kernel.org>

show more ...