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Patch series "mm/damon: make DAMON debugfs interface deprecation
unignorable".
DAMON debugfs interface is deprecated in February 2023, by commit
5445fcbc4cda ("Docs/admin-guide/mm/damon/usage: add DAMON debugfs
interface deprecation notice"). Make the fact unable to be easily ignored
by removing an example usage from the document (patch 1), renaming the
config (patch 2), adding a deprecation notice file to the debugfs
directory (patches 3-5), and renaming the debugfs file that essnetial to
be used for real use of DAMON (patches 6-9).
This patch (of 9):
DAMON tracepoints example on the DAMON usage document is using DAMON
debugfs interface, which is deprecated. Use its alternative, DAMON sysfs
interface.
Link: https://lkml.kernel.org/r/[email protected]
Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: SeongJae Park <[email protected]>
Cc: Alex Shi <[email protected]>
Cc: Hu Haowen <[email protected]>
Cc: Jonathan Corbet <[email protected]>
Cc: Shuah Khan <[email protected]>
Cc: Yanteng Si <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
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Add a sysfs knob for dax devices to control the memmap_on_memory setting
if the dax device were to be hotplugged as system memory.
The default memmap_on_memory setting for dax devices originating via pmem
or hmem is set to 'false' - i.e. no memmap_on_memory semantics, to
preserve legacy behavior. For dax devices via CXL, the default is on.
The sysfs control allows the administrator to override the above defaults
if needed.
Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Vishal Verma <[email protected]>
Tested-by: Li Zhijian <[email protected]>
Reviewed-by: Jonathan Cameron <[email protected]>
Reviewed-by: David Hildenbrand <[email protected]>
Reviewed-by: Huang, Ying <[email protected]>
Reviewed-by: Alison Schofield <[email protected]>
Cc: Dan Williams <[email protected]>
Cc: Dave Jiang <[email protected]>
Cc: Dave Hansen <[email protected]>
Cc: Greg Kroah-Hartman <[email protected]>
Cc: Matthew Wilcox (Oracle) <[email protected]>
Cc: Michal Hocko <[email protected]>
Cc: Oscar Salvador <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
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Add the missing sysfs ABI documentation for the device DAX subsystem.
Various ABI attributes under this have been present since v5.1, and more
have been added over time. In preparation for adding a new attribute,
add this file with the historical details.
Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Vishal Verma <[email protected]>
Cc: Dan Williams <[email protected]>
Cc: Dave Hansen <[email protected]>
Cc: Dave Jiang <[email protected]>
Cc: David Hildenbrand <[email protected]>
Cc: Greg Kroah-Hartman <[email protected]>
Cc: Huang Ying <[email protected]>
Cc: Jonathan Cameron <[email protected]>
Cc: Li Zhijian <[email protected]>
Cc: Matthew Wilcox (Oracle) <[email protected]>
Cc: Michal Hocko <[email protected]>
Cc: Oscar Salvador <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
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Document the GPU SMMU found on the SM8650 platform.
Signed-off-by: Neil Armstrong <[email protected]>
Reviewed-by: Krzysztof Kozlowski <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Will Deacon <[email protected]>
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The 'if' condition for the SM8[45]50 GPU SMMU is too large,
add the other compatible strings to the condition to only
allow the clocks for the GPU SMMU nodes.
Fixes: 4fff78dc2490 ("dt-bindings: arm-smmu: Document SM8[45]50 GPU SMMU")
Suggested-by: Dmitry Baryshkov <[email protected]>
Signed-off-by: Neil Armstrong <[email protected]>
Reviewed-by: Krzysztof Kozlowski <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Will Deacon <[email protected]>
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git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Paolo Abeni:
"Including fixes from bpf and netfilter.
Current release - regressions:
- af_unix: fix another unix GC hangup
Previous releases - regressions:
- core: fix a possible AF_UNIX deadlock
- bpf: fix NULL pointer dereference in sk_psock_verdict_data_ready()
- netfilter: nft_flow_offload: release dst in case direct xmit path
is used
- bridge: switchdev: ensure MDB events are delivered exactly once
- l2tp: pass correct message length to ip6_append_data
- dccp/tcp: unhash sk from ehash for tb2 alloc failure after
check_estalblished()
- tls: fixes for record type handling with PEEK
- devlink: fix possible use-after-free and memory leaks in
devlink_init()
Previous releases - always broken:
- bpf: fix an oops when attempting to read the vsyscall page through
bpf_probe_read_kernel
- sched: act_mirred: use the backlog for mirred ingress
- netfilter: nft_flow_offload: fix dst refcount underflow
- ipv6: sr: fix possible use-after-free and null-ptr-deref
- mptcp: fix several data races
- phonet: take correct lock to peek at the RX queue
Misc:
- handful of fixes and reliability improvements for selftests"
* tag 'net-6.8.0-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (72 commits)
l2tp: pass correct message length to ip6_append_data
net: phy: realtek: Fix rtl8211f_config_init() for RTL8211F(D)(I)-VD-CG PHY
selftests: ioam: refactoring to align with the fix
Fix write to cloned skb in ipv6_hop_ioam()
phonet/pep: fix racy skb_queue_empty() use
phonet: take correct lock to peek at the RX queue
net: sparx5: Add spinlock for frame transmission from CPU
net/sched: flower: Add lock protection when remove filter handle
devlink: fix port dump cmd type
net: stmmac: Fix EST offset for dwmac 5.10
tools: ynl: don't leak mcast_groups on init error
tools: ynl: make sure we always pass yarg to mnl_cb_run
net: mctp: put sock on tag allocation failure
netfilter: nf_tables: use kzalloc for hook allocation
netfilter: nf_tables: register hooks last when adding new chain/flowtable
netfilter: nft_flow_offload: release dst in case direct xmit path is used
netfilter: nft_flow_offload: reset dst in route object after setting up flow
netfilter: nf_tables: set dormant flag on hook register failure
selftests: tls: add test for peeking past a record of a different type
selftests: tls: add test for merging of same-type control messages
...
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When CONFIG_WQ_CPU_INTENSIVE_REPORT is set, the kernel will report
the work functions which violate the intensive_threshold_us repeatedly.
And now, only when the violate times exceed 4 and is a power of 2,
the kernel warning could be triggered.
However, sometimes, even if a long work execution time occurs only once,
it may cause other work to be delayed for a long time. This may also
cause some problems sometimes.
In order to freely control the threshold of warninging, a boot argument
is added so that the user can control the warning threshold to be printed.
At the same time, keep the exponential backoff to prevent reporting too much.
By default, the warning threshold is 4.
tj: Updated kernel-parameters.txt description.
Signed-off-by: Xuewen Yan <[email protected]>
Signed-off-by: Tejun Heo <[email protected]>
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Add a compatible for the LG Optimus Vu P895 and Optimus 4X P880.
Signed-off-by: Maxim Schwalm <[email protected]>
Signed-off-by: Svyatoslav Ryhel <[email protected]>
Acked-by: Krzysztof Kozlowski <[email protected]>
Signed-off-by: Thierry Reding <[email protected]>
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Specifying which fields were unused allows IANA to only list as deprecated
instructions that were actually used, leaving the rest as unassigned and
possibly available for future use for something else.
Signed-off-by: Dave Thaler <[email protected]>
Acked-by: David Vernet <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Alexei Starovoitov <[email protected]>
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* "BPF ADD" should be "BPF_ADD".
* "src" should be "src_reg" in several places. The latter is the field name
in the instruction. The former refers to the value of the register, or the
immediate.
* Add '' around field names in one sentence, for consistency with the rest
of the document.
Signed-off-by: Dave Thaler <[email protected]>
Acked-by: David Vernet <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Alexei Starovoitov <[email protected]>
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Update dt-binding document for GPIO interrupt controller
of Amlogic-T7 SoCs.
Signed-off-by: Huqiang Qin <[email protected]>
Signed-off-by: Thomas Gleixner <[email protected]>
Acked-by: Conor Dooley <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
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All the RZ/G2L and alike SoC's (listed below) have ECCRAM0/1 interrupts
supported by the IRQC block, reflect the same in DT binding doc.
- R9A07G043U - RZ/G2UL
- R9A07G044L/R9A07G044LC - RZ/{G2L,G2LC}
- R9A07G054 - RZ/V2L
- R9A08G045 - RZ/G3S
For the RZ/G3S SoC ("R9A08G045") ECCRAM0/1 interrupts combined into single
interrupt so we just use the below to represent them:
- ec7tie1-0
- ec7tie2-0
- ec7tiovf-0
Previously, it was assumed that BUS-error and ECCRAM0/1 error interrupts
were only supported by RZ/G2UL ("R9A07G043U") and RZ/G3S ("R9A08G045")
SoCs. However, in reality, all RZ/G2L and similar SoCs (listed above)
support these interrupts. Therefore, mark the 'interrupt-names' property
as required for all the SoCs and update the example node in the binding
document.
Fixes: 96fed779d3d4 ("dt-bindings: interrupt-controller: Add Renesas RZ/G2L Interrupt Controller")
Fixes: 1cf0697a24ef ("dt-bindings: interrupt-controller: renesas,rzg2l-irqc: Document RZ/G3S")
Signed-off-by: Lad Prabhakar <[email protected]>
Acked-by: Conor Dooley <[email protected]>
Reviewed-by: Geert Uytterhoeven <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Rob Herring <[email protected]>
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The GPU SMMU on QCM2290 nicely fits into the description we already have
for SM61[12]5. Add it.
Signed-off-by: Konrad Dybcio <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Will Deacon <[email protected]>
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If the guest does not explicitly set the GPA of vcpu_info structure in
memory then, for guests with 32 vCPUs or fewer, the vcpu_info embedded
in the shared_info page may be used. As described in a previous commit,
the shared_info page is an overlay at a fixed HVA within the VMM, so in
this case it also more optimal to activate the vcpu_info cache with a
fixed HVA to avoid unnecessary invalidation if the guest memory layout
is modified.
Signed-off-by: Paul Durrant <[email protected]>
Reviewed-by: David Woodhouse <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
[sean: use kvm_gpc_is_{gpa,hva}_active()]
Signed-off-by: Sean Christopherson <[email protected]>
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The shared_info page is not guest memory as such. It is a dedicated page
allocated by the VMM and overlaid onto guest memory in a GFN chosen by the
guest and specified in the XENMEM_add_to_physmap hypercall. The guest may
even request that shared_info be moved from one GFN to another by
re-issuing that hypercall, but the HVA is never going to change.
Because the shared_info page is an overlay the memory slots need to be
updated in response to the hypercall. However, memory slot adjustment is
not atomic and, whilst all vCPUs are paused, there is still the possibility
that events may be delivered (which requires the shared_info page to be
updated) whilst the shared_info GPA is absent. The HVA is never absent
though, so it makes much more sense to use that as the basis for the
kernel's mapping.
Hence add a new KVM_XEN_ATTR_TYPE_SHARED_INFO_HVA attribute type for this
purpose and a KVM_XEN_HVM_CONFIG_SHARED_INFO_HVA flag to advertize its
availability. Don't actually advertize it yet though. That will be done in
a subsequent patch, which will also add tests for the new attribute type.
Also update the KVM API documentation with the new attribute and also fix
it up to consistently refer to 'shared_info' (with the underscore).
Signed-off-by: Paul Durrant <[email protected]>
Reviewed-by: David Woodhouse <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
[sean: store "hva" as a user pointer, use kvm_gpc_is_{gpa,hva}_active()]
Signed-off-by: Sean Christopherson <[email protected]>
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The ACPI custom_method debugfs interface is security-sensitive and
concurrent access to it is broken [1].
Moreover, the recipe for preparing a customized version of a given
control method has changed at one point due to ACPICA changes, which
has not been reflected in its documentation, so whoever used it before
has had to adapt and it had gone unnoticed for a long time.
This interface was a bad idea to start with and its implementation is
fragile at the design level. It's been always conceptually questionable,
problematic from the security standpoint and implemented poorly.
Patches fixing its most apparent functional issues (for example, [2]) don't
actually address much of the above.
Granted, at the time it was introduced, there was no alternative, but
there is the AML debugger in the kernel now and there is the configfs
interface allowing custom ACPI tables to be loaded. The former can be
used for extensive AML debugging and the latter can be use for testing
new AML. [3]
Accordingly, drop custom_method along with its (outdated anyway)
documentation.
Link: https://lore.kernel.org/linux-acpi/[email protected]/ # [1]
Link: https://lore.kernel.org/linux-acpi/[email protected]/ [2]
Link: https://stackoverflow.com/questions/62849113/how-to-unload-an-overlay-loaded-using-acpi-config-sysfs # [3]
Reported-by: Hang Zhang <[email protected]>
Signed-off-by: Rafael J. Wysocki <[email protected]>
Reviewed-by: Zhang Rui <[email protected]>
Reviewed-by: Kees Cook <[email protected]>
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MT7981 (Filogic 820) is a low cost version of MT7986 (Filogic 830) with
a similar wireless controller that also supports four interrupts.
Cc: Peter Chiu <[email protected]>
Cc: Felix Fietkau <[email protected]>
Signed-off-by: Rafał Miłecki <[email protected]>
Acked-by: Conor Dooley <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
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The mt7986 can support four interrupts to distribute the interrupts
to different CPUs.
Signed-off-by: Peter Chiu <[email protected]>
Reviewed-by: Krzysztof Kozlowski <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
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Document support for the SPI Multi I/O Bus Controller (RPC-IF) in the
Renesas R-Car V4M (R8A779H0) SoC.
Signed-off-by: Geert Uytterhoeven <[email protected]>
Reviewed-by: Wolfram Sang <[email protected]>
Link: https://lore.kernel.org/r/263d6626fd4fa51b175b5c7a53e6a363e2c91519.1708354280.git.geert+renesas@glider.be
Signed-off-by: Krzysztof Kozlowski <[email protected]>
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Add DT-Schema bindings for the EyeQ5 reset controller.
Reviewed-by: Krzysztof Kozlowski <[email protected]>
Signed-off-by: Théo Lebrun <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Stephen Boyd <[email protected]>
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Add DT schema bindings for the EyeQ5 clock controller driver.
Reviewed-by: Krzysztof Kozlowski <[email protected]>
Signed-off-by: Théo Lebrun <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Stephen Boyd <[email protected]>
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This helps validating DTS files. Introduced changes:
1. Documented "reg" property
2. Dropped "syscon" as it was incorrectly used
3. Adjusted nodename, "compatible" and "reg" in example
Signed-off-by: Rafał Miłecki <[email protected]>
Reviewed-by: Krzysztof Kozlowski <[email protected]>
Reviewed-by: AngeloGioacchino Del Regno <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Stephen Boyd <[email protected]>
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This helps validating DTS files. Introduced changes:
1. Documented "reg" property
2. Dropped "syscon" as it was incorrectly used
3. Adjusted nodename, "compatible" and "reg" in example
Signed-off-by: Rafał Miłecki <[email protected]>
Reviewed-by: Krzysztof Kozlowski <[email protected]>
Reviewed-by: AngeloGioacchino Del Regno <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Stephen Boyd <[email protected]>
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This helps validating DTS files. Introduced changes:
1. Documented "reg" property
2. Documented "#reset-cells" property
3. Dropped "syscon" as it was incorrectly used
4. Adjusted "compatible" and "reg" in example
Signed-off-by: Rafał Miłecki <[email protected]>
Reviewed-by: Krzysztof Kozlowski <[email protected]>
Reviewed-by: AngeloGioacchino Del Regno <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Stephen Boyd <[email protected]>
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The existing documentation was not telling that one has to create a PPP
channel and a PPP interface to get PPPoL2TP data offloading working.
Also, tunnel switching was not mentioned, so that people were thinking
it was not supported, while it actually is.
Signed-off-by: Samuel Thibault <[email protected]>
Acked-by: Tom Parkin <[email protected]>
Link: https://lore.kernel.org/r/20240217211425.qj576u3jmaa6yidf@begin
Signed-off-by: Jakub Kicinski <[email protected]>
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Fix misspellings of "Arm11", "Cortex-A8", and "Cortex-A9".
While at it, add a missing comma before "and", and reflow the paragraph.
Signed-off-by: Geert Uytterhoeven <[email protected]>
Acked-by: Krzysztof Kozlowski <[email protected]>
Signed-off-by: Linus Walleij <[email protected]>
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Bring in the build fixes so that we can successfully build PDFs again.
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Include simplified link titles in the main page's documentation index to
enhance website's readability and UX. Update the text that directs users to
various documents without changing the actual titles chosen by the authors.
Signed-off-by: Carlos Bilbao <[email protected]>
Signed-off-by: Jonathan Corbet <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
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Adjust the title of "The Linux kernel user's and administrator's guide" to
adhere to the expected reStructuredText (rst) formatting, using double
equal signs for the main header.
Signed-off-by: Carlos Bilbao <[email protected]>
Signed-off-by: Jonathan Corbet <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
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If the directory passed to the '.. kernel-feat::' directive does not
exist or the get_feat.pl script does not find any files to extract
features from, Sphinx will report the following error:
Sphinx parallel build error:
UnboundLocalError: local variable 'fname' referenced before assignment
make[2]: *** [Documentation/Makefile:102: htmldocs] Error 2
This is due to how I changed the script in c48a7c44a1d0 ("docs:
kernel_feat.py: fix potential command injection"). Before that, the
filename passed along to self.nestedParse() in this case was weirdly
just the whole get_feat.pl invocation.
We can fix it by doing what kernel_abi.py does -- just pass
self.arguments[0] as 'fname'.
Fixes: c48a7c44a1d0 ("docs: kernel_feat.py: fix potential command injection")
Cc: Justin Forbes <[email protected]>
Cc: Salvatore Bonaccorso <[email protected]>
Cc: Jani Nikula <[email protected]>
Cc: Mauro Carvalho Chehab <[email protected]>
Cc: [email protected]
Signed-off-by: Vegard Nossum <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jonathan Corbet <[email protected]>
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This patch adds CONFIG_KASAN_EXTRA_INFO introduction information to
KASAN documentation.
Signed-off-by: Juntong Deng <[email protected]>
Reviewed-by: Andrey Konovalov <[email protected]>
Link: https://lore.kernel.org/r/AM6PR03MB5848C52B871DA67455F0B2F2994D2@AM6PR03MB5848.eurprd03.prod.outlook.com
Signed-off-by: Jonathan Corbet <[email protected]>
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In the 'fault-injection' subdirectory, the first letter F
is capitalized, whereas in index.rst f is lowercase, but in
index.rst all other elements in the same column are capitalized.
Signed-off-by: "Ran.Park" <[email protected]>
Signed-off-by: Jonathan Corbet <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
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The mailman2 server running on lists.linuxfoundation.org will be shut
down in very imminent future. Update all instances of obsolete list
addresses throughout the tree with their new destinations.
Signed-off-by: Konstantin Ryabitsev <[email protected]>
Reviewed-by: Kees Cook <[email protected]>
Signed-off-by: Jonathan Corbet <[email protected]>
Link: https://lore.kernel.org/r/20240214-lf-org-list-migration-v1-1-ef1eab4b1543@linuxfoundation.org
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kerneldoc.py is mostly indented with 4 spaces (like PEP8 suggests);
replace the last remaining tabs for consistency.
No functional change.
Cc: Jani Nikula <[email protected]>
Cc: Mauro Carvalho Chehab <[email protected]>
Signed-off-by: Vegard Nossum <[email protected]>
Reviewed-by: Randy Dunlap <[email protected]>
Signed-off-by: Jonathan Corbet <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
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Akira Yokosawa reported [1] that the "translations" extension we added in
commit 7418ec5b151f ("docs: translations: add translations links when they
exist") broke the build on Sphinx versions v6.1.3 through 7.1.2 (possibly
others) with the following error:
Exception occurred:
File "/usr/lib/python3.12/site-packages/sphinx/util/nodes.py", line 624, in _copy_except__document
newnode = self.__class__(rawsource=self.rawsource, **self.attributes)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
TypeError: LanguagesNode.__init__() missing 1 required positional argument: 'current_language'
The full traceback has been saved in /tmp/sphinx-err-7xmwytuu.log, if you want to report the issue to the developers.
Solve this problem by making 'current_language' a true element attribute
of the LanguagesNode element, which is probably the more correct way to do
it anyway.
Tested on Sphinx 2.x, 3.x, 6.x, and 7.x.
[1]: https://lore.kernel.org/all/[email protected]/
Fixes: 7418ec5b151f ("docs: translations: add translations links when they exist")
Reported-by: Akira Yokosawa <[email protected]>
Signed-off-by: Vegard Nossum <[email protected]>
Closes: https://lore.kernel.org/all/[email protected]/
Tested-by: Akira Yokosawa <[email protected]> # Sphinx 4.3.2, 5.3.0 and 6.2.1
Signed-off-by: Jonathan Corbet <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
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Just a typographical error.
Reported-by: Edmund Grimley-Evans <[email protected]>
Reviewed-by: Dave Martin <[email protected]>
Signed-off-by: Mark Brown <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Catalin Marinas <[email protected]>
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The documentation for system vector length configuration does not cover all
cases where unsupported values are written, tighten it up.
Reported-by: Edmund Grimley-Evans <[email protected]>
Signed-off-by: Mark Brown <[email protected]>
Reviewed-by: Dave Martin <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Catalin Marinas <[email protected]>
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The ABI for SME is very like that for SVE so bits of the ABI were copied
but not adequately search and replaced, fix that.
Reported-by: Edmund Grimley-Evans <[email protected]>
Signed-off-by: Mark Brown <[email protected]>
Reviewed-by: Dave Martin <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Catalin Marinas <[email protected]>
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When we documented that we always clear state not shared with FPSIMD we
didn't catch all of the places that mentioned that state might not be
cleared, remove a lingering reference.
Reported-by: Edmund Grimley-Evans <[email protected]>
Reviewed-by: Dave Martin <[email protected]>
Signed-off-by: Mark Brown <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Catalin Marinas <[email protected]>
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Document DU found in RZ/V2L SoC. The DU block is identical to RZ/G2L
SoC and therefore use RZ/G2L fallback to avoid any driver changes.
Signed-off-by: Biju Das <[email protected]>
Reviewed-by: Rob Herring <[email protected]>
Reviewed-by: Laurent Pinchart <[email protected]>
Reviewed-by: Geert Uytterhoeven <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Maxime Ripard <[email protected]>
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The RZ/G2L LCD controller is composed of Frame Compression Processor
(FCPVD), Video Signal Processor (VSPD), and Display Unit (DU).
The DU module supports the following hardware features
− Display Parallel Interface (DPI) and MIPI LINK Video Interface
− Display timing master
− Generates video timings
− Selecting the polarity of output DCLK, HSYNC, VSYNC, and DE
− Supports Progressive
− Input data format (from VSPD): RGB888, RGB666
− Output data format: same as Input data format
− Supporting Full HD (1920 pixels x 1080 lines) for MIPI-DSI Output
− Supporting WXGA (1280 pixels x 800 lines) for Parallel Output
This patch documents the DU module found on RZ/G2L LCDC.
Signed-off-by: Biju Das <[email protected]>
Reviewed-by: Rob Herring <[email protected]>
Reviewed-by: Laurent Pinchart <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Maxime Ripard <[email protected]>
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On newer Qualcomm platforms, like X1E80100-CRD, the WSA884x speakers
share SD_N GPIOs between two speakers, thus a coordinated assertion is
needed. Linux supports handling shared GPIO lines through "reset-gpios"
property, thus allow specifying either powerdown or reset GPIOs (these
are the same).
Cc: Bartosz Golaszewski <[email protected]>
Cc: Sean Anderson <[email protected]>
Acked-by: Rob Herring <[email protected]>
Signed-off-by: Krzysztof Kozlowski <[email protected]>
Link: https://msgid.link/r/[email protected]
Signed-off-by: Mark Brown <[email protected]>
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On a 8-socket server the TSC is wrongly marked as 'unstable' and disabled
during boot time on about one out of 120 boot attempts:
clocksource: timekeeping watchdog on CPU227: wd-tsc-wd excessive read-back delay of 153560ns vs. limit of 125000ns,
wd-wd read-back delay only 11440ns, attempt 3, marking tsc unstable
tsc: Marking TSC unstable due to clocksource watchdog
TSC found unstable after boot, most likely due to broken BIOS. Use 'tsc=unstable'.
sched_clock: Marking unstable (119294969739, 159204297)<-(125446229205, -5992055152)
clocksource: Checking clocksource tsc synchronization from CPU 319 to CPUs 0,99,136,180,210,542,601,896.
clocksource: Switched to clocksource hpet
The reason is that for platform with a large number of CPUs, there are
sporadic big or huge read latencies while reading the watchog/clocksource
during boot or when system is under stress work load, and the frequency and
maximum value of the latency goes up with the number of online CPUs.
The cCurrent code already has logic to detect and filter such high latency
case by reading the watchdog twice and checking the two deltas. Due to the
randomness of the latency, there is a low probabilty that the first delta
(latency) is big, but the second delta is small and looks valid. The
watchdog code retries the readouts by default twice, which is not
necessarily sufficient for systems with a large number of CPUs.
There is a command line parameter 'max_cswd_read_retries' which allows to
increase the number of retries, but that's not user friendly as it needs to
be tweaked per system. As the number of required retries is proportional to
the number of online CPUs, this parameter can be calculated at runtime.
Scale and enlarge the number of retries according to the number of online
CPUs and remove the command line parameter completely.
[ tglx: Massaged change log and comments ]
Signed-off-by: Feng Tang <[email protected]>
Signed-off-by: Thomas Gleixner <[email protected]>
Tested-by: Jin Wang <[email protected]>
Tested-by: Paul E. McKenney <[email protected]>
Reviewed-by: Waiman Long <[email protected]>
Reviewed-by: Paul E. McKenney <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
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Add bindings for the reset generator on the SOPHGO SG2042 RISC-V SoC.
Signed-off-by: Chen Wang <[email protected]>
Reviewed-by: Krzysztof Kozlowski <[email protected]>
Reviewed-by: Inochi Amaoto <[email protected]>
Link: https://lore.kernel.org/r/35c348437b6e18972ccaf90d9c38040caccd1f11.1706577450.git.unicorn_wang@outlook.com
Signed-off-by: Philipp Zabel <[email protected]>
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These functions aren't used anymore, so get rid of them.
Signed-off-by: "Darrick J. Wong" <[email protected]>
Signed-off-by: Christoph Hellwig <[email protected]>
Reviewed-by: Dave Chinner <[email protected]>
Signed-off-by: Chandan Babu R <[email protected]>
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All current and pending xfile users use the xfile_obj_load
and xfile_obj_store API, so make those the actual implementation.
Signed-off-by: Christoph Hellwig <[email protected]>
Reviewed-by: "Darrick J. Wong" <[email protected]>
Signed-off-by: Chandan Babu R <[email protected]>
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Merge series from Cezary Rojewski <[email protected]>:
The avs-driver continues to be utilized on more recent Intel machines.
As TGL-based (cAVS 2.5) e.g.: RPL, inherit most of the functionality
from previous platforms:
SKL <- APL <- CNL <- ICL <- TGL
rather than putting everything into a single file, the platform-specific
bits are split into cnl/icl/tgl.c files instead. Makes the division clear
and code easier to maintain.
Layout of the patchset:
First are two changes combined together address the sound-clipping
problem, present when only one stream is running - specifically one
CAPTURE stream.
Follow up is naming-scheme adjustment for some of the existing functions
what improves code incohesiveness. As existing IPC/IRQ code operates
solely on cAVS 1.5 architecture, it needs no abstraction. The situation
changes when newer platforms come into the picture. Thus the next two
patches abstract the existing IPC/IRQ handlers so that majority of the
common code can be re-used.
The ICCMAX change stands out a bit - the AudioDSP firmware loading
procedure differs on ICL-based platforms (and onwards) and having a
separate commit makes the situation clear to the developers who are
going to support the solution from LTS perspective. For that reason
I decided not to merge it into the commit introducing the icl.c file.
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The VBUS register block on the PM4125 PMIC shares the design with the
PM8150B one. Define corresponding compatible string, having the
qcom,pm8150b-vbus-reg as a fallback.
Acked-by: Krzysztof Kozlowski <[email protected]>
Signed-off-by: Dmitry Baryshkov <[email protected]>
Link: https://msgid.link/r/[email protected]
Signed-off-by: Mark Brown <[email protected]>
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The addition of the XFS online fsck documentation starting with
commit a8f6c2e54ddc ("xfs: document the motivation for online fsck design")
added a deeper level of nesting than LaTeX is prepared to deal with. That
caused a pdfdocs build failure with the helpful "Too deeply nested" error
message buried deeply in Documentation/output/filesystems.log.
Increase the "maxlistdepth" parameter to instruct LaTeX that it needs to
deal with the deeper nesting whether it wants to or not.
Suggested-by: Akira Yokosawa <[email protected]>
Tested-by: Akira Yokosawa <[email protected]>
Cc: [email protected] # v6.4+
Link: https://lore.kernel.org/linux-doc/[email protected]/
Signed-off-by: Jonathan Corbet <[email protected]>
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https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux-mem-ctrl into soc/drivers
Memory controller drivers for v6.9
1. TI EMIF: Simplify handling CONFIG_DEBUG_FS, CONFIG_OF and
platform_driver_probe().
2. Narrow regex in Nvidia Tegra20 EMC binding.
* tag 'memory-controller-drv-6.9' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux-mem-ctrl:
dt-bindings: memory-controllers: narrow regex for unit address to hex numbers
memory: emif: Drop usage of platform_driver_probe()
memory: emif: Simplify code handling CONFIG_OF
memory: emif: Simplify code handling CONFIG_DEBUG_FS
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnd Bergmann <[email protected]>
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