Merge drm/drm-fixes into drm-misc-fixes

Forwarding to v6.6-rc1.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>

Merge tag 'irq-core-2023-08-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

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

Core:

- Prevent a

Merge tag 'irq-core-2023-08-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

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

Core:

- Prevent a deadlock of nested interrupt threads vs.
synchronize_hard()

- Removal of a stale extern declaration

Drivers:

- The first new driver since v6.2 for Amlogic-C3 SoCs

- The usual small fixes, cleanups and improvements all over the
place"

* tag 'irq-core-2023-08-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
irqchip: Add support for Amlogic-C3 SoCs
dt-bindings: interrupt-controller: Add support for Amlogic-C3 SoCs
irqchip/irq-mvebu-sei: Use devm_platform_get_and_ioremap_resource()
irqchip/ls-scfg-msi: Use devm_platform_get_and_ioremap_resource()
irqchip: Explicitly include correct DT includes
irqchip/orion: Use of_address_count() helper
irqchip/irq-pruss-intc: Do not check for 0 return after calling platform_get_irq()
irqchip/imx-mu-msi: Do not check for 0 return after calling platform_get_irq()
irqchipr/i8259: Mark i8259_of_init() static
irqchip/mips-gic: Mark gic_irq_domain_free() static
irqchip/xtensa-pic: Include header for xtensa_pic_init_legacy()
irqchip/loongson-eiointc: Fix return value checking of eiointc_index
genirq: Remove unused extern declaration
genirq: Prevent nested thread vs synchronize_hardirq() deadlock

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

Catching-up with drm-next and drm-intel-gt-next.
It will unblock a code refactor around the platform
definitions (names vs acronyms).

Signed-off-by: Rodrigo V

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

Catching-up with drm-next and drm-intel-gt-next.
It will unblock a code refactor around the platform
definitions (names vs acronyms).

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

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

Need to pull in b3e4aae612ec ("drm/i915/hdcp: Modify hdcp_gsc_message msg sending mechanism") as
a dependency for https://patchwork.freedesktop.org/series/1

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

Need to pull in b3e4aae612ec ("drm/i915/hdcp: Modify hdcp_gsc_message msg sending mechanism") as
a dependency for https://patchwork.freedesktop.org/series/121735/

Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>

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genirq: Prevent nested thread vs synchronize_hardirq() deadlock

There is a possibility of deadlock if synchronize_hardirq() is called
when the nested threaded interrupt is active. The following sce

genirq: Prevent nested thread vs synchronize_hardirq() deadlock

There is a possibility of deadlock if synchronize_hardirq() is called
when the nested threaded interrupt is active. The following scenario
was observed on a uniprocessor PREEMPT_NONE system:

Thread 1 Thread 2

handle_nested_thread()
Set INPROGRESS
Call ->thread_fn()
thread_fn goes to sleep

free_irq()
__synchronize_hardirq()
Busy-loop forever waiting for INPROGRESS
to be cleared

The INPROGRESS flag is only supposed to be used for hard interrupt
handlers. Remove the incorrect usage in the nested threaded interrupt
case and instead re-use the threads_active / wait_for_threads mechanism
to wait for nested threaded interrupts to complete.

Signed-off-by: Vincent Whitchurch <vincent.whitchurch@axis.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20230613-genirq-nested-v3-1-ae58221143eb@axis.com

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Merge drm/drm-next into drm-misc-next

Backmerging to get v6.5-rc2.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>

ASoC: Merge v6.5-rc2

Get a similar baseline to my other branches, and fixes for people using
the branch.

Merge v6.5-rc1 into drm-misc-fixes

Boris needs 6.5-rc1 in drm-misc-fixes to prevent a conflict.

Signed-off-by: Maxime Ripard <mripard@kernel.org>

Merge branch 'master' into mm-hotfixes-stable

Merge tag 'irq-core-2023-06-26' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/tip/tip

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

Core:

- Convert the

Merge tag 'irq-core-2023-06-26' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/tip/tip

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

Core:

- Convert the interrupt descriptor storage to a maple tree to
overcome the limitations of the radixtree + fixed size bitmap.

This allows us to handle very large servers with a huge number of
guests without imposing a huge memory overhead on everyone

- Implement optional retriggering of interrupts which utilize the
fasteoi handler to work around a GICv3 architecture issue

Drivers:

- A set of fixes and updates for the Loongson/Loongarch related
drivers

- Workaound for an ASR8601 integration hickup which ends up with CPU
numbering which can't be represented in the GIC implementation

- The usual set of boring fixes and updates all over the place"

* tag 'irq-core-2023-06-26' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/tip/tip: (27 commits)
Revert "irqchip/mxs: Include linux/irqchip/mxs.h"
irqchip/jcore-aic: Fix missing allocation of IRQ descriptors
irqchip/stm32-exti: Fix warning on initialized field overwritten
irqchip/stm32-exti: Add STM32MP15xx IWDG2 EXTI to GIC map
irqchip/gicv3: Add a iort_pmsi_get_dev_id() prototype
irqchip/mxs: Include linux/irqchip/mxs.h
irqchip/clps711x: Remove unused clps711x_intc_init() function
irqchip/mmp: Remove non-DT codepath
irqchip/ftintc010: Mark all function static
irqdomain: Include internals.h for function prototypes
irqchip/loongson-eiointc: Add DT init support
dt-bindings: interrupt-controller: Add Loongson EIOINTC
irqchip/loongson-eiointc: Fix irq affinity setting during resume
irqchip/loongson-liointc: Add IRQCHIP_SKIP_SET_WAKE flag
irqchip/loongson-liointc: Fix IRQ trigger polarity
irqchip/loongson-pch-pic: Fix potential incorrect hwirq assignment
irqchip/loongson-pch-pic: Fix initialization of HT vector register
irqchip/gic-v3-its: Enable RESEND_WHEN_IN_PROGRESS for LPIs
genirq: Allow fasteoi handler to resend interrupts on concurrent handling
genirq: Expand doc for PENDING and REPLAY flags
...

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Merge tag 'irqchip-6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms into irq/core

Pull irqchip updates from Marc Zyngier:

- A number of Loogson/Loogarch fixes

- Allow th

Merge tag 'irqchip-6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms into irq/core

Pull irqchip updates from Marc Zyngier:

- A number of Loogson/Loogarch fixes

- Allow the core code to retrigger an interrupt that has
fired while the same interrupt is being handled on another
CPU, papering over a GICv3 architecture issue

- Work around an integration problem on ASR8601, where the CPU
numbering isn't representable in the GIC implementation...

- Add some missing interrupt to the STM32 irqchip

- A bunch of warning squashing triggered by W=1 builds

Link: https://lore.kernel.org/r/20230623224345.3577134-1-maz@kernel.org

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Merge branch irq/lpi-resend into irq/irqchip-next

* irq/lpi-resend:
: .
: Patch series from James Gowans, working around an issue with
: GICv3 LPIs that can fire concurrently on multiple CPUs.

Merge branch irq/lpi-resend into irq/irqchip-next

* irq/lpi-resend:
: .
: Patch series from James Gowans, working around an issue with
: GICv3 LPIs that can fire concurrently on multiple CPUs.
: .
irqchip/gic-v3-its: Enable RESEND_WHEN_IN_PROGRESS for LPIs
genirq: Allow fasteoi handler to resend interrupts on concurrent handling
genirq: Expand doc for PENDING and REPLAY flags
genirq: Use BIT() for the IRQD_* state flags

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

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genirq: Allow fasteoi handler to resend interrupts on concurrent handling

There is a class of interrupt controllers out there that, once they
have signalled a given interrupt number, will still sign

genirq: Allow fasteoi handler to resend interrupts on concurrent handling

There is a class of interrupt controllers out there that, once they
have signalled a given interrupt number, will still signal incoming
instances of the *same* interrupt despite the original interrupt
not having been EOIed yet.

As long as the new interrupt reaches the *same* CPU, nothing bad
happens, as that CPU still has its interrupts globally disabled,
and we will only take the new interrupt once the interrupt has
been EOIed.

However, things become more "interesting" if an affinity change comes
in while the interrupt is being handled. More specifically, while
the per-irq lock is being dropped. This results in the affinity change
taking place immediately. At this point, there is nothing that prevents
the interrupt from firing on the new target CPU. We end-up with the
interrupt running concurrently on two CPUs, which isn't a good thing.

And that's where things become worse: the new CPU notices that the
interrupt handling is in progress (irq_may_run() return false), and
*drops the interrupt on the floor*.

The whole race looks like this:

CPU 0 | CPU 1
-----------------------------|-----------------------------
interrupt start |
handle_fasteoi_irq | set_affinity(CPU 1)
handler |
... | interrupt start
... | handle_fasteoi_irq -> early out
handle_fasteoi_irq return | interrupt end
interrupt end |

If the interrupt was an edge, too bad. The interrupt is lost, and
the system will eventually die one way or another. Not great.

A way to avoid this situation is to detect this problem at the point
we handle the interrupt on the new target. Instead of dropping the
interrupt, use the resend mechanism to force it to be replayed.

Also, in order to limit the impact of this workaround to the pathetic
architectures that require it, gate it behind a new irq flag aptly
named IRQD_RESEND_WHEN_IN_PROGRESS.

Suggested-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: James Gowans <jgowans@amazon.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Marc Zyngier <maz@kernel.org>
Cc: KarimAllah Raslan <karahmed@amazon.com>
Cc: Yipeng Zou <zouyipeng@huawei.com>
Cc: Zhang Jianhua <chris.zjh@huawei.com>
[maz: reworded commit mesage]
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20230608120021.3273400-3-jgowans@amazon.com

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genirq: Use hlist for managing resend handlers

The current implementation utilizes a bitmap for managing interrupt resend
handlers, which is allocated based on the SPARSE_IRQ/NR_IRQS macros.
However

genirq: Use hlist for managing resend handlers

The current implementation utilizes a bitmap for managing interrupt resend
handlers, which is allocated based on the SPARSE_IRQ/NR_IRQS macros.
However, this method may not efficiently utilize memory during runtime,
particularly when IRQ_BITMAP_BITS is large.

Address this issue by using an hlist to manage interrupt resend handlers
instead of relying on a static bitmap memory allocation. Additionally, a
new function, clear_irq_resend(), is introduced and called from
irq_shutdown to ensure a graceful teardown of the interrupt.

Signed-off-by: Shanker Donthineni <sdonthineni@nvidia.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20230519134902.1495562-2-sdonthineni@nvidia.com

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Merge branch 'next' into for-linus

Prepare input updates for 6.3 merge window.

Merge drm/drm-next into drm-misc-next

Backmerging into drm-misc-next to get DRM accelerator infrastructure,
which is required by ipuv driver.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>

Merge wireless into wireless-next

Due to the two cherry picked commits from wireless to wireless-next we have
several conflicts in mt76. To avoid any bugs with conflicts merge wireless into
wireless

Merge wireless into wireless-next

Due to the two cherry picked commits from wireless to wireless-next we have
several conflicts in mt76. To avoid any bugs with conflicts merge wireless into
wireless-next.

96f134dc1964 wifi: mt76: handle possible mt76_rx_token_consume failures
fe13dad8992b wifi: mt76: dma: do not increment queue head if mt76_dma_add_buf fails

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Merge tag 'v6.2-rc3' into next

Merge with mainline to bring in timer_shutdown_sync() API.

Merge drm/drm-fixes into drm-misc-fixes

Let's start the fixes cycle.

Signed-off-by: Maxime Ripard <maxime@cerno.tech>

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

Sync up with v6.2-rc1.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>

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

Sync after v6.2-rc1 landed in drm-next.

We need to get some dependencies in place before we can merge
the fixes series from Gwan-gyeong and Chris.

Referen

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

Sync after v6.2-rc1 landed in drm-next.

We need to get some dependencies in place before we can merge
the fixes series from Gwan-gyeong and Chris.

References: https://lore.kernel.org/all/Y6x5JCDnh2rvh4lA@intel.com/
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>

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Merge tag 'v6.2-rc1' into media_tree

Linux 6.2-rc1

* tag 'v6.2-rc1': (14398 commits)
Linux 6.2-rc1
treewide: Convert del_timer*() to timer_shutdown*()
pstore: Properly assign mem_type propert

Merge tag 'v6.2-rc1' into media_tree

Linux 6.2-rc1

* tag 'v6.2-rc1': (14398 commits)
Linux 6.2-rc1
treewide: Convert del_timer*() to timer_shutdown*()
pstore: Properly assign mem_type property
pstore: Make sure CONFIG_PSTORE_PMSG selects CONFIG_RT_MUTEXES
cfi: Fix CFI failure with KASAN
perf python: Fix splitting CC into compiler and options
afs: Stop implementing ->writepage()
afs: remove afs_cache_netfs and afs_zap_permits() declarations
afs: remove variable nr_servers
afs: Fix lost servers_outstanding count
ALSA: usb-audio: Add new quirk FIXED_RATE for JBL Quantum810 Wireless
ALSA: azt3328: Remove the unused function snd_azf3328_codec_outl()
gcov: add support for checksum field
test_maple_tree: add test for mas_spanning_rebalance() on insufficient data
maple_tree: fix mas_spanning_rebalance() on insufficient data
hugetlb: really allocate vma lock for all sharable vmas
kmsan: export kmsan_handle_urb
kmsan: include linux/vmalloc.h
mm/mempolicy: fix memory leak in set_mempolicy_home_node system call
mm, mremap: fix mremap() expanding vma with addr inside vma
...

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

To resolve a trivial merge conflict with c302378bc157f6a7 ("libbpf:
Hashmap interface update to allow both long and void* keys/values"),

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

To resolve a trivial merge conflict with c302378bc157f6a7 ("libbpf:
Hashmap interface update to allow both long and void* keys/values"),
where a function present upstream was removed in the perf tools
development tree.

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

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Merge branch 'main' into zstd-linus

Merge tags 'acpi-6.2-rc1' and 'irq-core-2022-12-10' into loongarch-next

LoongArch architecture changes for 6.2 depend on the acpi and irqchip
changes to work, so merge them to create a base.