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1148779 commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Daniel Latypov
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c2bb92bc4e |
kunit: tool: make parser preserve whitespace when printing test log
Currently, kunit_parser.py is stripping all leading whitespace to make parsing easier. But this means we can't accurately show kernel output for failing tests or when the kernel crashes. Embarassingly, this affects even KUnit's own output, e.g. [13:40:46] Expected 2 + 1 == 2, but [13:40:46] 2 + 1 == 3 (0x3) [13:40:46] not ok 1 example_simple_test [13:40:46] [FAILED] example_simple_test After this change, here's what the output in context would look like [13:40:46] =================== example (4 subtests) =================== [13:40:46] # example_simple_test: initializing [13:40:46] # example_simple_test: EXPECTATION FAILED at lib/kunit/kunit-example-test.c:29 [13:40:46] Expected 2 + 1 == 2, but [13:40:46] 2 + 1 == 3 (0x3) [13:40:46] [FAILED] example_simple_test [13:40:46] [SKIPPED] example_skip_test [13:40:46] [SKIPPED] example_mark_skipped_test [13:40:46] [PASSED] example_all_expect_macros_test [13:40:46] # example: initializing suite [13:40:46] # example: pass:1 fail:1 skip:2 total:4 [13:40:46] # Totals: pass:1 fail:1 skip:2 total:4 [13:40:46] ===================== [FAILED] example ===================== This example shows one minor cosmetic defect this approach has. The test counts lines prevent us from dedenting the suite-level output. But at the same time, any form of non-KUnit output would do the same unless it happened to be indented as well. Signed-off-by: Daniel Latypov <dlatypov@google.com> Reviewed-by: David Gow <davidgow@google.com> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org> |
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David Gow
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a81fe7ecf7 |
Documentation: kunit: Fix "How Do I Use This" / "Next Steps" sections
The "How Do I Use This" section of index.rst and "Next Steps" section of
start.rst were just copies of the table of contents, and therefore
weren't really useful either when looking a sphinx generated output
(which already had the TOC visible) or when reading the source (where
it's just a list of files that ls could give you).
Instead, provide a small number of concrete next steps, and a bit more
description about what the pages contain.
This also removes the broken reference to 'tips.rst', which was
previously removed.
Fixed git am whitespace complaints during commit:
Shuah Khan <skhan@linuxfoundation.org>
Fixes: 4399c737a97d ("Documentation: kunit: Remove redundant 'tips.rst' page")
Signed-off-by: David Gow <davidgow@google.com>
Reviewed-by: Sadiya Kazi <sadiyakazi@google.com>
Reviewed-by: Bagas Sanjaya <bagasdotme@gmail.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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Daniel Latypov
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5937e0c04a |
kunit: tool: don't include KTAP headers and the like in the test log
We print the "test log" on failure. This is meant to be all the kernel output that happened during the test. But we also include the special KTAP lines in it, which are often redundant. E.g. we include the "not ok" line in the log, right before we print that the test case failed... [13:51:48] Expected 2 + 1 == 2, but [13:51:48] 2 + 1 == 3 (0x3) [13:51:48] not ok 1 example_simple_test [13:51:48] [FAILED] example_simple_test More full example after this patch: [13:51:48] =================== example (4 subtests) =================== [13:51:48] # example_simple_test: initializing [13:51:48] # example_simple_test: EXPECTATION FAILED at lib/kunit/kunit-example-test.c:29 [13:51:48] Expected 2 + 1 == 2, but [13:51:48] 2 + 1 == 3 (0x3) [13:51:48] [FAILED] example_simple_test Signed-off-by: Daniel Latypov <dlatypov@google.com> Reviewed-by: David Gow <davidgow@google.com> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org> |
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Rae Moar
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6c738b5231 |
kunit: improve KTAP compliance of KUnit test output
Change KUnit test output to better comply with KTAP v1 specifications found here: https://kernel.org/doc/html/latest/dev-tools/ktap.html. 1) Use "KTAP version 1" instead of "TAP version 14" as test output header 2) Remove '-' between test number and test name on test result lines 2) Add KTAP version lines to each subtest header as well Note that the new KUnit output still includes the “# Subtest” line now located after the KTAP version line. This does not completely match the KTAP v1 spec but since it is classified as a diagnostic line, it is not expected to be disruptive or break any existing parsers. This “# Subtest” line comes from the TAP 14 spec (https://testanything.org/tap-version-14-specification.html) and it is used to define the test name before the results. Original output: TAP version 14 1..1 # Subtest: kunit-test-suite 1..3 ok 1 - kunit_test_1 ok 2 - kunit_test_2 ok 3 - kunit_test_3 # kunit-test-suite: pass:3 fail:0 skip:0 total:3 # Totals: pass:3 fail:0 skip:0 total:3 ok 1 - kunit-test-suite New output: KTAP version 1 1..1 KTAP version 1 # Subtest: kunit-test-suite 1..3 ok 1 kunit_test_1 ok 2 kunit_test_2 ok 3 kunit_test_3 # kunit-test-suite: pass:3 fail:0 skip:0 total:3 # Totals: pass:3 fail:0 skip:0 total:3 ok 1 kunit-test-suite Signed-off-by: Rae Moar <rmoar@google.com> Reviewed-by: Daniel Latypov <dlatypov@google.com> Reviewed-by: David Gow <davidgow@google.com> Tested-by: Anders Roxell <anders.roxell@linaro.org> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org> |
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Rae Moar
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434498a6be |
kunit: tool: parse KTAP compliant test output
Change the KUnit parser to be able to parse test output that complies with the KTAP version 1 specification format found here: https://kernel.org/doc/html/latest/dev-tools/ktap.html. Ensure the parser is able to parse tests with the original KUnit test output format as well. KUnit parser now accepts any of the following test output formats: Original KUnit test output format: TAP version 14 1..1 # Subtest: kunit-test-suite 1..3 ok 1 - kunit_test_1 ok 2 - kunit_test_2 ok 3 - kunit_test_3 # kunit-test-suite: pass:3 fail:0 skip:0 total:3 # Totals: pass:3 fail:0 skip:0 total:3 ok 1 - kunit-test-suite KTAP version 1 test output format: KTAP version 1 1..1 KTAP version 1 1..3 ok 1 kunit_test_1 ok 2 kunit_test_2 ok 3 kunit_test_3 ok 1 kunit-test-suite New KUnit test output format (changes made in the next patch of this series): KTAP version 1 1..1 KTAP version 1 # Subtest: kunit-test-suite 1..3 ok 1 kunit_test_1 ok 2 kunit_test_2 ok 3 kunit_test_3 # kunit-test-suite: pass:3 fail:0 skip:0 total:3 # Totals: pass:3 fail:0 skip:0 total:3 ok 1 kunit-test-suite Signed-off-by: Rae Moar <rmoar@google.com> Reviewed-by: Daniel Latypov <dlatypov@google.com> Reviewed-by: David Gow <davidgow@google.com> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org> |
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David Gow
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909c6475d5 |
mm: slub: test: Use the kunit_get_current_test() function
Use the newly-added function kunit_get_current_test() instead of accessing current->kunit_test directly. This function uses a static key to return more quickly when KUnit is enabled, but no tests are actively running. There should therefore be a negligible performance impact to enabling the slub KUnit tests. Other than the performance improvement, this should be a no-op. Cc: Oliver Glitta <glittao@gmail.com> Cc: Hyeonggon Yoo <42.hyeyoo@gmail.com> Cc: Christoph Lameter <cl@linux.com> Cc: Vlastimil Babka <vbabka@suse.cz> Cc: David Rientjes <rientjes@google.com> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David Gow <davidgow@google.com> Acked-by: Vlastimil Babka <vbabka@suse.cz> Acked-by: Hyeonggon Yoo <42.hyeyoo@gmail.com> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org> |
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David Gow
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91e9359221 |
kunit: Use the static key when retrieving the current test
In order to detect if a KUnit test is running, and to access its context, the 'kunit_test' member of the current task_struct is used. Usually, this is accessed directly or via the kunit_fail_current_task() function. In order to speed up the case where no test is running, add a wrapper, kunit_get_current_test(), which uses the static key to fail early. Equally, Speed up kunit_fail_current_test() by using the static key. This should make it convenient for code to call this unconditionally in fakes or error paths, without worrying that this will slow the code down significantly. If CONFIG_KUNIT=n (or m), this compiles away to nothing. If CONFIG_KUNIT=y, it will compile down to a NOP (on most architectures) if no KUnit test is currently running. Note that kunit_get_current_test() does not work if KUnit is built as a module. This mirrors the existing restriction on kunit_fail_current_test(). Note that the definition of kunit_fail_current_test() still wraps an empty, inline function if KUnit is not built-in. This is to ensure that the printf format string __attribute__ will still work. Also update the documentation to suggest users use the new kunit_get_current_test() function, update the example, and to describe the behaviour when KUnit is disabled better. Cc: Jonathan Corbet <corbet@lwn.net> Cc: Sadiya Kazi <sadiyakazi@google.com> Signed-off-by: David Gow <davidgow@google.com> Reviewed-by: Daniel Latypov <dlatypov@google.com> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org> |
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David Gow
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908d0c177b |
kunit: Provide a static key to check if KUnit is actively running tests
KUnit does a few expensive things when enabled. This hasn't been a problem because KUnit was only enabled on test kernels, but with a few people enabling (but not _using_) KUnit on production systems, we need a runtime way of handling this. Provide a 'kunit_running' static key (defaulting to false), which allows us to hide any KUnit code behind a static branch. This should reduce the performance impact (on other code) of having KUnit enabled to a single NOP when no tests are running. Note that, while it looks unintuitive, tests always run entirely within __kunit_test_suites_init(), so it's safe to decrement the static key at the end of this function, rather than in __kunit_test_suites_exit(), which is only there to clean up results in debugfs. Signed-off-by: David Gow <davidgow@google.com> Reviewed-by: Daniel Latypov <dlatypov@google.com> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org> |
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Daniel Latypov
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309e22effb |
kunit: tool: make --json do nothing if --raw_ouput is set
When --raw_output is set (to any value), we don't actually parse the test results. So asking to print the test results as json doesn't make sense. We internally create a fake test with one passing subtest, so --json would actually print out something misleading. This patch: * Rewords the flag descriptions so hopefully this is more obvious. * Also updates --raw_output's description to note the default behavior is to print out only "KUnit" results (actually any KTAP results) * also renames and refactors some related logic for clarity (e.g. test_result => test, it's a kunit_parser.Test object). Notably, this patch does not make it an error to specify --json and --raw_output together. This is an edge case, but I know of at least one wrapper around kunit.py that always sets --json. You'd never be able to use --raw_output with that wrapper. Signed-off-by: Daniel Latypov <dlatypov@google.com> Reviewed-by: David Gow <davidgow@google.com> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org> |
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Daniel Latypov
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0a7d5c30b7 |
kunit: tool: tweak error message when no KTAP found
We currently tell people we "couldn't find any KTAP output" with no indication as to what this might mean. After this patch, we get: $ ./tools/testing/kunit/kunit.py parse /dev/null ============================================================ [ERROR] Test: <missing>: Could not find any KTAP output. Did any KUnit tests run? ============================================================ Testing complete. Ran 0 tests: errors: 1 Note: we could try and generate a more verbose message like > Please check .kunit/test.log to see the raw kernel output. or the like, but we'd need to know what the build dir was to know where test.log actually lives. This patch tries to make a more minimal improvement. Signed-off-by: Daniel Latypov <dlatypov@google.com> Reviewed-by: David Gow <davidgow@google.com> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org> |
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Daniel Latypov
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34c68f432c |
kunit: remove KUNIT_INIT_MEM_ASSERTION macro
Commit 870f63b7cd78 ("kunit: eliminate KUNIT_INIT_*_ASSERT_STRUCT
macros") removed all the other macros of this type.
But it raced with commit
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David Gow
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a5b9abaa60 |
Documentation: kunit: Remove redundant 'tips.rst' page
The contents of 'tips.rst' was mostly included in 'usage.rst' way back in
commit
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Daniel Latypov
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ec0a42a17e |
Documentation: KUnit: reword description of assertions
The existing wording implies that kunit_kmalloc_array() is "the method
under test". We're actually testing the sort() function in that example.
This is because the example was changed in commit
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Daniel Latypov
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65c48a48ea |
Documentation: KUnit: make usage.rst a superset of tips.rst, remove duplication
usage.rst had most of the content of the tips.rst page copied over. But it's missing https://www.kernel.org/doc/html/v6.0/dev-tools/kunit/tips.html#customizing-error-messages Copy it over so we can retire tips.rst w/o losing content. And in that process, it also gained a duplicate section about how KUNIT_ASSERT_*() exit the test case early. Remove that. Signed-off-by: Daniel Latypov <dlatypov@google.com> Reviewed-by: Sadiya Kazi <sadiyakazi@google.com> Reviewed-by: David Gow <davidgow@google.com> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org> |
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Daniel Latypov
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697365c086 |
kunit: eliminate KUNIT_INIT_*_ASSERT_STRUCT macros
These macros exist because passing an initializer list to other macros
is hard.
The goal of these macros is to generate a line like
struct $ASSERT_TYPE __assertion = $APPROPRIATE_INITIALIZER;
e.g.
struct kunit_unary_assertion __assertion = {
.condition = "foo()",
.expected_true = true
};
But the challenge is you can't pass `{.condition=..., .expect_true=...}`
as a macro argument, since the comma means you're actually passing two
arguments, `{.condition=...` and `.expect_true=....}`.
So we'd made custom macros for each different initializer-list shape.
But we can work around this with the following generic macro
#define KUNIT_INIT_ASSERT(initializers...) { initializers }
Note: this has the downside that we have to rename some macros arguments
to not conflict with the struct field names (e.g. `expected_true`).
It's a bit gross, but probably worth reducing the # of macros.
Signed-off-by: Daniel Latypov <dlatypov@google.com>
Reviewed-by: David Gow <davidgow@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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Daniel Latypov
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101e32a025 |
kunit: tool: remove redundant file.close() call in unit test
We're using a `with` block above, so the file object is already closed. Signed-off-by: Daniel Latypov <dlatypov@google.com> Reviewed-by: David Gow <davidgow@google.com> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org> |
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Daniel Latypov
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05d9d2c3ee |
kunit: tool: unit tests all check parser errors, standardize formatting a bit
Let's verify that the parser isn't reporting any errors for valid inputs. This change also * does result.status checking on one line * makes sure we consistently do it outside of the `with` block Signed-off-by: Daniel Latypov <dlatypov@google.com> Reviewed-by: David Gow <davidgow@google.com> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org> |
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Daniel Latypov
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f473dd9488 |
kunit: tool: make TestCounts a dataclass
Since we're using Python 3.7+, we can use dataclasses to tersen the code. It also lets us create pre-populated TestCounts() objects and compare them in our unit test. (Before, you could only create empty ones). Signed-off-by: Daniel Latypov <dlatypov@google.com> Reviewed-by: David Gow <davidgow@google.com> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org> |
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Jakub Kicinski
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a38a211e9e |
Merge branch 'mptcp-fix-ipv6-reqsk-ops-and-some-netlink-error-codes'
Mat Martineau says: ==================== mptcp: Fix IPv6 reqsk ops and some netlink error codes Patch 1 adds some missing error status values for MPTCP path management netlink commands with invalid attributes. Patches 2-4 make IPv6 subflows use the correct request_sock_ops structure and IPv6-specific destructor. The first patch in this group is a prerequisite change that simplifies the last two patches. ==================== Link: https://lore.kernel.org/r/20221210002810.289674-1-mathew.j.martineau@linux.intel.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
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Matthieu Baerts
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d3295fee3c |
mptcp: use proper req destructor for IPv6
Before, only the destructor from TCP request sock in IPv4 was called
even if the subflow was IPv6.
It is important to use the right destructor to avoid memory leaks with
some advanced IPv6 features, e.g. when the request socks contain
specific IPv6 options.
Fixes:
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Matthieu Baerts
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34b21d1ddc |
mptcp: dedicated request sock for subflow in v6
tcp_request_sock_ops structure is specific to IPv4. It should then not
be used with MPTCP subflows on top of IPv6.
For example, it contains the 'family' field, initialised to AF_INET.
This 'family' field is used by TCP FastOpen code to generate the cookie
but also by TCP Metrics, SELinux and SYN Cookies. Using the wrong family
will not lead to crashes but displaying/using/checking wrong things.
Note that 'send_reset' callback from request_sock_ops structure is used
in some error paths. It is then also important to use the correct one
for IPv4 or IPv6.
The slab name can also be different in IPv4 and IPv6, it will be used
when printing some log messages. The slab pointer will anyway be the
same because the object size is the same for both v4 and v6. A
BUILD_BUG_ON() has also been added to make sure this size is the same.
Fixes:
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Matthieu Baerts
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3fff88186f |
mptcp: remove MPTCP 'ifdef' in TCP SYN cookies
To ease the maintenance, it is often recommended to avoid having #ifdef preprocessor conditions. Here the section related to CONFIG_MPTCP was quite short but the next commit needs to add more code around. It is then cleaner to move specific MPTCP code to functions located in net/mptcp directory. Now that mptcp_subflow_request_sock_ops structure can be static, it can also be marked as "read only after init". Suggested-by: Paolo Abeni <pabeni@redhat.com> Reviewed-by: Mat Martineau <mathew.j.martineau@linux.intel.com> Cc: stable@vger.kernel.org Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net> Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
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Wei Yongjun
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e0fe1123ab |
mptcp: netlink: fix some error return code
Fix to return negative error code -EINVAL from some error handling case instead of 0, as done elsewhere in those functions. Fixes: |
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Jakub Kicinski
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84698dad06 |
Merge branch 'update-joakim-zhang-entries'
Florian Fainelli says: ==================== Update Joakim Zhang entries Shawn, since you are the i.MX maintainer I added you and the NXP Linux Team as the de-facto maintainers for those entries, however there may be other people to list, thanks! ==================== Link: https://lore.kernel.org/r/20221209220519.1542872-1-f.fainelli@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
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Florian Fainelli
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fb21cad284 |
dt-bindings: FEC/i.MX DWMAC and INTMUX maintainer
Emails to Joakim Zhang bounce, add Shawn Guo (i.MX architecture maintainer) and the NXP Linux Team exploder email as well as well Wei Wang for FEC and Clark Wang for DWMAC. Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
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Florian Fainelli
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4e81462a45 |
MAINTAINERS: Update NXP FEC maintainer
Emails to Joakim Zhang bounce, update the list of maintainers per feedback from Clark Wang and designate Wei Fang as the primary maintainer. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
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Rob Herring
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15eb162176 |
dt-bindings: net: Convert Socionext NetSec Ethernet to DT schema
Convert the Socionext NetSec Ethernet binding to DT schema format. Signed-off-by: Rob Herring <robh@kernel.org> Acked-by: Jassi Brar <jaswinder.singh@linaro.org> Link: https://lore.kernel.org/r/20221209171553.3350583-1-robh@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
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Taras Chornyi
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4e426e2534 |
MAINTAINERS: Update email address for Marvell Prestera Ethernet Switch driver
Taras's Marvell email account will be shut down soon so change it to Plvision. Signed-off-by: Taras Chornyi <taras.chornyi@plvision.eu> Signed-off-by: Vadym Kochan <vadym.kochan@plvision.eu> Link: https://lore.kernel.org/r/20221209154521.1246881-1-vadym.kochan@plvision.eu Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
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Linus Torvalds
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631aa74442 |
Updates for miscellaneous x86 areas:
- Reserve a new boot loader type for barebox which is usally used on ARM
and MIPS, but can also be utilized as EFI payload on x86 to provide
watchdog-supervised boot up.
- Consolidate the native and compat 32bit signal handling code and split
the 64bit version out into a separate source file
- Switch the ESPFIX random usage to get_random_long().
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Merge tag 'x86-misc-2022-12-10' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull misc x86 updates from Thomas Gleixner:
"Updates for miscellaneous x86 areas:
- Reserve a new boot loader type for barebox which is usally used on
ARM and MIPS, but can also be utilized as EFI payload on x86 to
provide watchdog-supervised boot up.
- Consolidate the native and compat 32bit signal handling code and
split the 64bit version out into a separate source file
- Switch the ESPFIX random usage to get_random_long()"
* tag 'x86-misc-2022-12-10' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/espfix: Use get_random_long() rather than archrandom
x86/signal/64: Move 64-bit signal code to its own file
x86/signal/32: Merge native and compat 32-bit signal code
x86/signal: Add ABI prefixes to frame setup functions
x86/signal: Merge get_sigframe()
x86: Remove __USER32_DS
signal/compat: Remove compat_sigset_t override
x86/signal: Remove sigset_t parameter from frame setup functions
x86/signal: Remove sig parameter from frame setup functions
Documentation/x86/boot: Reserve type_of_loader=13 for barebox
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Xu Panda
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80a464d83f |
net: hns3: use strscpy() to instead of strncpy()
The implementation of strscpy() is more robust and safer. That's now the recommended way to copy NUL terminated strings. Signed-off-by: Xu Panda <xu.panda@zte.com.cn> Signed-off-by: Yang Yang <yang.yang29@zte.com> Reviewed-by: Jiri Pirko <jiri@nvidia.com> Link: https://lore.kernel.org/r/202212091538591375035@zte.com.cn Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
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|
Firo Yang
|
da05cecc49 |
sctp: sysctl: make extra pointers netns aware
Recently, a customer reported that from their container whose net namespace is different to the host's init_net, they can't set the container's net.sctp.rto_max to any value smaller than init_net.sctp.rto_min. For instance, Host: sudo sysctl net.sctp.rto_min net.sctp.rto_min = 1000 Container: echo 100 > /mnt/proc-net/sctp/rto_min echo 400 > /mnt/proc-net/sctp/rto_max echo: write error: Invalid argument This is caused by the check made from this'commit |
||
|
Eric Pilmore
|
5f7d78b2b1 |
ntb_netdev: Use dev_kfree_skb_any() in interrupt context
TX/RX callback handlers (ntb_netdev_tx_handler(), ntb_netdev_rx_handler()) can be called in interrupt context via the DMA framework when the respective DMA operations have completed. As such, any calls by these routines to free skb's, should use the interrupt context safe dev_kfree_skb_any() function. Previously, these callback handlers would call the interrupt unsafe version of dev_kfree_skb(). This has not presented an issue on Intel IOAT DMA engines as that driver utilizes tasklets rather than a hard interrupt handler, like the AMD PTDMA DMA driver. On AMD systems, a kernel WARNING message is encountered, which is being issued from skb_release_head_state() due to in_hardirq() being true. Besides the user visible WARNING from the kernel, the other symptom of this bug was that TCP/IP performance across the ntb_netdev interface was very poor, i.e. approximately an order of magnitude below what was expected. With the repair to use dev_kfree_skb_any(), kernel WARNINGs from skb_release_head_state() ceased and TCP/IP performance, as measured by iperf, was on par with expected results, approximately 20 Gb/s on AMD Milan based server. Note that this performance is comparable with Intel based servers. Fixes: |
||
|
Jerry Ray
|
8964916d20 |
net: lan9303: Fix read error execution path
This patch fixes an issue where a read failure of a port statistic counter
will return unknown results. While it is highly unlikely the read will
ever fail, it is much cleaner to return a zero for the stat count.
Fixes:
|
||
|
Roger Quadros
|
5821504f50 |
net: ethernet: ti: am65-cpsw: Fix PM runtime leakage in am65_cpsw_nuss_ndo_slave_open()
Ensure pm_runtime_put() is issued in error path.
Reported-by: Jakub Kicinski <kuba@kernel.org>
Fixes:
|
||
|
Linus Torvalds
|
0a1d4434db |
Updates for timers, timekeeping and drivers:
- Core:
- The timer_shutdown[_sync]() infrastructure:
Tearing down timers can be tedious when there are circular
dependencies to other things which need to be torn down. A prime
example is timer and workqueue where the timer schedules work and the
work arms the timer.
What needs to prevented is that pending work which is drained via
destroy_workqueue() does not rearm the previously shutdown
timer. Nothing in that shutdown sequence relies on the timer being
functional.
The conclusion was that the semantics of timer_shutdown_sync() should
be:
- timer is not enqueued
- timer callback is not running
- timer cannot be rearmed
Preventing the rearming of shutdown timers is done by discarding rearm
attempts silently. A warning for the case that a rearm attempt of a
shutdown timer is detected would not be really helpful because it's
entirely unclear how it should be acted upon. The only way to address
such a case is to add 'if (in_shutdown)' conditionals all over the
place. This is error prone and in most cases of teardown not required
all.
- The real fix for the bluetooth HCI teardown based on
timer_shutdown_sync().
A larger scale conversion to timer_shutdown_sync() is work in
progress.
- Consolidation of VDSO time namespace helper functions
- Small fixes for timer and timerqueue
- Drivers:
- Prevent integer overflow on the XGene-1 TVAL register which causes
an never ending interrupt storm.
- The usual set of new device tree bindings
- Small fixes and improvements all over the place
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Merge tag 'timers-core-2022-12-10' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer updates from Thomas Gleixner:
"Updates for timers, timekeeping and drivers:
Core:
- The timer_shutdown[_sync]() infrastructure:
Tearing down timers can be tedious when there are circular
dependencies to other things which need to be torn down. A prime
example is timer and workqueue where the timer schedules work and
the work arms the timer.
What needs to prevented is that pending work which is drained via
destroy_workqueue() does not rearm the previously shutdown timer.
Nothing in that shutdown sequence relies on the timer being
functional.
The conclusion was that the semantics of timer_shutdown_sync()
should be:
- timer is not enqueued
- timer callback is not running
- timer cannot be rearmed
Preventing the rearming of shutdown timers is done by discarding
rearm attempts silently.
A warning for the case that a rearm attempt of a shutdown timer is
detected would not be really helpful because it's entirely unclear
how it should be acted upon. The only way to address such a case is
to add 'if (in_shutdown)' conditionals all over the place. This is
error prone and in most cases of teardown not required all.
- The real fix for the bluetooth HCI teardown based on
timer_shutdown_sync().
A larger scale conversion to timer_shutdown_sync() is work in
progress.
- Consolidation of VDSO time namespace helper functions
- Small fixes for timer and timerqueue
Drivers:
- Prevent integer overflow on the XGene-1 TVAL register which causes
an never ending interrupt storm.
- The usual set of new device tree bindings
- Small fixes and improvements all over the place"
* tag 'timers-core-2022-12-10' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (34 commits)
dt-bindings: timer: renesas,cmt: Add r8a779g0 CMT support
dt-bindings: timer: renesas,tmu: Add r8a779g0 support
clocksource/drivers/arm_arch_timer: Use kstrtobool() instead of strtobool()
clocksource/drivers/timer-ti-dm: Fix missing clk_disable_unprepare in dmtimer_systimer_init_clock()
clocksource/drivers/timer-ti-dm: Clear settings on probe and free
clocksource/drivers/timer-ti-dm: Make timer_get_irq static
clocksource/drivers/timer-ti-dm: Fix warning for omap_timer_match
clocksource/drivers/arm_arch_timer: Fix XGene-1 TVAL register math error
clocksource/drivers/timer-npcm7xx: Enable timer 1 clock before use
dt-bindings: timer: nuvoton,npcm7xx-timer: Allow specifying all clocks
dt-bindings: timer: rockchip: Add rockchip,rk3128-timer
clockevents: Repair kernel-doc for clockevent_delta2ns()
clocksource/drivers/ingenic-ost: Define pm functions properly in platform_driver struct
clocksource/drivers/sh_cmt: Access registers according to spec
vdso/timens: Refactor copy-pasted find_timens_vvar_page() helper into one copy
Bluetooth: hci_qca: Fix the teardown problem for real
timers: Update the documentation to reflect on the new timer_shutdown() API
timers: Provide timer_shutdown[_sync]()
timers: Add shutdown mechanism to the internal functions
timers: Split [try_to_]del_timer[_sync]() to prepare for shutdown mode
...
|
||
|
Linus Torvalds
|
79ad89123c |
A set of x86 cleanups:
- Rework the handling of x86_regset for 32 and 64 bit. The original
implementation tried to minimize the allocation size with quite some
hard to understand and fragile tricks. Make it robust and straight
forward by separating the register enumerations for 32 and 64 bit
completely.
- Add a few missing static annotations
- Remove the stale unused setup_once() assembly function
- Address a few minor static analysis and kernel-doc warnings
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Merge tag 'x86-cleanups-2022-12-10' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 cleanups from Thomas Gleixner:
"A set of x86 cleanups:
- Rework the handling of x86_regset for 32 and 64 bit.
The original implementation tried to minimize the allocation size
with quite some hard to understand and fragile tricks. Make it
robust and straight forward by separating the register enumerations
for 32 and 64 bit completely.
- Add a few missing static annotations
- Remove the stale unused setup_once() assembly function
- Address a few minor static analysis and kernel-doc warnings"
* tag 'x86-cleanups-2022-12-10' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/asm/32: Remove setup_once()
x86/kaslr: Fix process_mem_region()'s return value
x86: Fix misc small issues
x86/boot: Repair kernel-doc for boot_kstrtoul()
x86: Improve formatting of user_regset arrays
x86: Separate out x86_regset for 32 and 64 bit
x86/i8259: Make default_legacy_pic static
x86/tsc: Make art_related_clocksource static
|
||
|
Linus Torvalds
|
369013162f |
A set of changes for the x86 APIC code:
- Handle the case where x2APIC is enabled and locked by the BIOS on a
kernel with CONFIG_X86_X2APIC=n gracefully. Instead of a panic which
does not make it to the graphical console during very early boot,
simply disable the local APIC completely and boot with the PIC and very
limited functionality, which allows to diagnose the issue.
- Convert x86 APIC device tree bindings to YAML
- Extend x86 APIC device tree bindings to configure interrupt delivery
mode and handle this in during init. This allows to boot with device
tree on platforms which lack a legacy PIC.
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Merge tag 'x86-apic-2022-12-10' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 apic update from Thomas Gleixner:
"A set of changes for the x86 APIC code:
- Handle the case where x2APIC is enabled and locked by the BIOS on a
kernel with CONFIG_X86_X2APIC=n gracefully.
Instead of a panic which does not make it to the graphical console
during very early boot, simply disable the local APIC completely
and boot with the PIC and very limited functionality, which allows
to diagnose the issue
- Convert x86 APIC device tree bindings to YAML
- Extend x86 APIC device tree bindings to configure interrupt
delivery mode and handle this in during init. This allows to boot
with device tree on platforms which lack a legacy PIC"
* tag 'x86-apic-2022-12-10' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/of: Add support for boot time interrupt delivery mode configuration
x86/of: Replace printk(KERN_LVL) with pr_lvl()
dt-bindings: x86: apic: Introduce new optional bool property for lapic
dt-bindings: x86: apic: Convert Intel's APIC bindings to YAML schema
x86/of: Remove unused early_init_dt_add_memory_arch()
x86/apic: Handle no CONFIG_X86_X2APIC on systems with x2APIC enabled by BIOS
|
||
|
Jakub Kicinski
|
fba119cee1 |
wireless-next patches for v6.2
Fourth set of patches for v6.2. Few final patches, a big change is that rtw88 now has USB support. Major changes: rtw88 * support USB devices rtw8821cu, rtw8822bu, rtw8822cu and rtw8723du -----BEGIN PGP SIGNATURE----- iQFFBAABCgAvFiEEiBjanGPFTz4PRfLobhckVSbrbZsFAmOW9EsRHGt2YWxvQGtl cm5lbC5vcmcACgkQbhckVSbrbZup1wf9EO1wK3M+wICOthV9hphaMK/cU5XQe455 V27N+IGg3KkeLgERYj/35C1Xwa4vXeUxWN31KvNJ/51IQaM14NfUE3OOu+gqUO36 a/HhECtcmzsjC+22hH1gvnN73/+S8VQEEfOJ//Jcg6exRmXVKRMWZU1o3rFupAR+ qePWzvYuadobmE8G/Zq2VFB5Eouf5z7MSXLd7Y/8HJMdL812GmA0nhNJXhHDt27A /K5QBOSnRQ24ZLOG4P0eFZrJGqFTcI27+w4bv+rzUL2ME/Rgp1hB7wBwQbCwD8sU Aus05avcIcVNfsTk3z7kOnYiBqf08WX6Ng6ezb9HunXXfWhLW7JtAw== =AzL1 -----END PGP SIGNATURE----- Merge tag 'wireless-next-2022-12-12' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next Kalle Valo says: ==================== wireless-next patches for v6.2 Fourth set of patches for v6.2. Few final patches, a big change is that rtw88 now has USB support. Major changes: rtw88 * support USB devices rtw8821cu, rtw8822bu, rtw8822cu and rtw8723du * tag 'wireless-next-2022-12-12' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next: (43 commits) wifi: rtl8xxxu: fixing IQK failures for rtl8192eu wifi: rtlwifi: btcoexist: fix conditions branches that are never executed wifi: rtlwifi: rtl8192se: remove redundant rtl_get_bbreg() call wifi: rtw88: Add rtw8723du chipset support wifi: rtw88: Add rtw8822cu chipset support wifi: rtw88: Add rtw8822bu chipset support wifi: rtw88: Add rtw8821cu chipset support wifi: rtw88: Add common USB chip support wifi: rtw88: iterate over vif/sta list non-atomically wifi: rtw88: Drop coex mutex wifi: rtw88: Drop h2c.lock wifi: rtw88: Drop rf_lock wifi: rtw88: Call rtw_fw_beacon_filter_config() with rtwdev->mutex held wifi: rtw88: print firmware type in info message wifi: rtw89: add join info upon create interface wifi: rtw89: fix unsuccessful interface_add flow wifi: rtw89: stop mac port function when stop_ap() wifi: rtw89: add mac TSF sync function wifi: rtw89: request full firmware only once if it's early requested wifi: rtw89: don't request partial firmware if SECURITY_LOADPIN_ENFORCE ... ==================== Link: https://lore.kernel.org/r/20221212093026.5C5AEC433D2@smtp.kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
||
|
Linus Torvalds
|
08d72bd299 |
A small set of updates for CPU hotplug:
- Prevent stale CPU hotplug state in the cpu_down() path which
was detected by stress testing the sysfs interface
- Ensure that the target CPU hotplug state for the boot CPU is
CPUHP_ONLINE instead of the compile time init value CPUHP_OFFLINE.
- Switch back to the original behaviour of warning when a CPU hotplug
callback in the DYING/STARTING section returns an error code. Otherwise
a buggy callback can leave the CPUs in an non recoverable state.
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Merge tag 'smp-core-2022-12-10' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull CPU hotplug updates from Thomas Gleixner:
"A small set of updates for CPU hotplug:
- Prevent stale CPU hotplug state in the cpu_down() path which was
detected by stress testing the sysfs interface
- Ensure that the target CPU hotplug state for the boot CPU is
CPUHP_ONLINE instead of the compile time init value CPUHP_OFFLINE.
- Switch back to the original behaviour of warning when a CPU hotplug
callback in the DYING/STARTING section returns an error code.
Otherwise a buggy callback can leave the CPUs in an non recoverable
state"
* tag 'smp-core-2022-12-10' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
cpu/hotplug: Do not bail-out in DYING/STARTING sections
cpu/hotplug: Set cpuhp target for boot cpu
cpu/hotplug: Make target_store() a nop when target == state
|
||
|
Jakub Kicinski
|
26f708a284 |
bpf-next-for-netdev
-----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEE+soXsSLHKoYyzcli6rmadz2vbToFAmOWgtsACgkQ6rmadz2v bTpT2g//WzQRsODtPVVmg87fEo1GSTXvoXq/fhg95OKNZrVKgx1N6EVlFSLSqEjL TAmOuv5cZT28ZpMPMNjnU/c/lFf/6/UWbbTusA+F3MtSCBSbP5DPsWDD0yvNT9DL EZbGoQDSyt1M+BakZLzwOV6HPn9oDhj5p/4lMw+gptTY+3IeYUbS50DinM8eLz+Q 067aF01p3ROF6LNUx9Az0cLPdU05oHzL2MvRsj/F7h/sWoSW5B/1Kx/m1vsT9lwn T2vbm6r4Jo0m0ZvpEMeRyKNZgVKIc64C7NH9CV7V66giJaONmxvLwkc0zWFwbXJ2 V9aPQbbBUx/CZXoC72LEsvVcoAFl7LAL1IALm2HVt1iQjpj1yDlWw3WV0PMQ9Rn7 xRVDOfQNGZ6jnkv6LB2j7V1z7hVENWQQwM48dgO2pAnJwYmUW9wZaAGE5kadUrZf eCD4c1U+qcZkSk4vwvpr8ubJ0PWPMUZqI0FrHUxfPxqkdy78c1h3qNQufZvAHWff Ca9NZqraFACTx58ZBsN1V5Xzv7azoK8Zgr9+JwVNahpFxclrbL8xuceThkC4smBl fiZJC9fClD9ATquIdj177jNMVC8F4B5yrKF/ehJDcNQhcqUdWx9Sbj461enf+3HI nfTP+77ZzyIJ76iRXJBV/jr9wkaPWhAZVeBGxmw5clTvB9/RBbU= =fzwv -----END PGP SIGNATURE----- Merge tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next Alexei Starovoitov says: ==================== pull-request: bpf-next 2022-12-11 We've added 74 non-merge commits during the last 11 day(s) which contain a total of 88 files changed, 3362 insertions(+), 789 deletions(-). The main changes are: 1) Decouple prune and jump points handling in the verifier, from Andrii. 2) Do not rely on ALLOW_ERROR_INJECTION for fmod_ret, from Benjamin. Merged from hid tree. 3) Do not zero-extend kfunc return values. Necessary fix for 32-bit archs, from Björn. 4) Don't use rcu_users to refcount in task kfuncs, from David. 5) Three reg_state->id fixes in the verifier, from Eduard. 6) Optimize bpf_mem_alloc by reusing elements from free_by_rcu, from Hou. 7) Refactor dynptr handling in the verifier, from Kumar. 8) Remove the "/sys" mount and umount dance in {open,close}_netns in bpf selftests, from Martin. 9) Enable sleepable support for cgrp local storage, from Yonghong. * tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: (74 commits) selftests/bpf: test case for relaxed prunning of active_lock.id selftests/bpf: Add pruning test case for bpf_spin_lock bpf: use check_ids() for active_lock comparison selftests/bpf: verify states_equal() maintains idmap across all frames bpf: states_equal() must build idmap for all function frames selftests/bpf: test cases for regsafe() bug skipping check_id() bpf: regsafe() must not skip check_ids() docs/bpf: Add documentation for BPF_MAP_TYPE_SK_STORAGE selftests/bpf: Add test for dynptr reinit in user_ringbuf callback bpf: Use memmove for bpf_dynptr_{read,write} bpf: Move PTR_TO_STACK alignment check to process_dynptr_func bpf: Rework check_func_arg_reg_off bpf: Rework process_dynptr_func bpf: Propagate errors from process_* checks in check_func_arg bpf: Refactor ARG_PTR_TO_DYNPTR checks into process_dynptr_func bpf: Skip rcu_barrier() if rcu_trace_implies_rcu_gp() is true bpf: Reuse freed element in free_by_rcu during allocation selftests/bpf: Bring test_offload.py back to life bpf: Fix comment error in fixup_kfunc_call function bpf: Do not zero-extend kfunc return values ... ==================== Link: https://lore.kernel.org/r/20221212024701.73809-1-alexei.starovoitov@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
||
|
Linus Torvalds
|
9d33edb20f |
Updates for the interrupt core and driver subsystem:
- Core:
The bulk is the rework of the MSI subsystem to support per device MSI
interrupt domains. This solves conceptual problems of the current
PCI/MSI design which are in the way of providing support for PCI/MSI[-X]
and the upcoming PCI/IMS mechanism on the same device.
IMS (Interrupt Message Store] is a new specification which allows device
manufactures to provide implementation defined storage for MSI messages
contrary to the uniform and specification defined storage mechanisms for
PCI/MSI and PCI/MSI-X. IMS not only allows to overcome the size limitations
of the MSI-X table, but also gives the device manufacturer the freedom to
store the message in arbitrary places, even in host memory which is shared
with the device.
There have been several attempts to glue this into the current MSI code,
but after lengthy discussions it turned out that there is a fundamental
design problem in the current PCI/MSI-X implementation. This needs some
historical background.
When PCI/MSI[-X] support was added around 2003, interrupt management was
completely different from what we have today in the actively developed
architectures. Interrupt management was completely architecture specific
and while there were attempts to create common infrastructure the
commonalities were rudimentary and just providing shared data structures and
interfaces so that drivers could be written in an architecture agnostic
way.
The initial PCI/MSI[-X] support obviously plugged into this model which
resulted in some basic shared infrastructure in the PCI core code for
setting up MSI descriptors, which are a pure software construct for holding
data relevant for a particular MSI interrupt, but the actual association to
Linux interrupts was completely architecture specific. This model is still
supported today to keep museum architectures and notorious stranglers
alive.
In 2013 Intel tried to add support for hot-pluggable IO/APICs to the kernel,
which was creating yet another architecture specific mechanism and resulted
in an unholy mess on top of the existing horrors of x86 interrupt handling.
The x86 interrupt management code was already an incomprehensible maze of
indirections between the CPU vector management, interrupt remapping and the
actual IO/APIC and PCI/MSI[-X] implementation.
At roughly the same time ARM struggled with the ever growing SoC specific
extensions which were glued on top of the architected GIC interrupt
controller.
This resulted in a fundamental redesign of interrupt management and
provided the today prevailing concept of hierarchical interrupt
domains. This allowed to disentangle the interactions between x86 vector
domain and interrupt remapping and also allowed ARM to handle the zoo of
SoC specific interrupt components in a sane way.
The concept of hierarchical interrupt domains aims to encapsulate the
functionality of particular IP blocks which are involved in interrupt
delivery so that they become extensible and pluggable. The X86
encapsulation looks like this:
|--- device 1
[Vector]---[Remapping]---[PCI/MSI]--|...
|--- device N
where the remapping domain is an optional component and in case that it is
not available the PCI/MSI[-X] domains have the vector domain as their
parent. This reduced the required interaction between the domains pretty
much to the initialization phase where it is obviously required to
establish the proper parent relation ship in the components of the
hierarchy.
While in most cases the model is strictly representing the chain of IP
blocks and abstracting them so they can be plugged together to form a
hierarchy, the design stopped short on PCI/MSI[-X]. Looking at the hardware
it's clear that the actual PCI/MSI[-X] interrupt controller is not a global
entity, but strict a per PCI device entity.
Here we took a short cut on the hierarchical model and went for the easy
solution of providing "global" PCI/MSI domains which was possible because
the PCI/MSI[-X] handling is uniform across the devices. This also allowed
to keep the existing PCI/MSI[-X] infrastructure mostly unchanged which in
turn made it simple to keep the existing architecture specific management
alive.
A similar problem was created in the ARM world with support for IP block
specific message storage. Instead of going all the way to stack a IP block
specific domain on top of the generic MSI domain this ended in a construct
which provides a "global" platform MSI domain which allows overriding the
irq_write_msi_msg() callback per allocation.
In course of the lengthy discussions we identified other abuse of the MSI
infrastructure in wireless drivers, NTB etc. where support for
implementation specific message storage was just mindlessly glued into the
existing infrastructure. Some of this just works by chance on particular
platforms but will fail in hard to diagnose ways when the driver is used
on platforms where the underlying MSI interrupt management code does not
expect the creative abuse.
Another shortcoming of today's PCI/MSI-X support is the inability to
allocate or free individual vectors after the initial enablement of
MSI-X. This results in an works by chance implementation of VFIO (PCI
pass-through) where interrupts on the host side are not set up upfront to
avoid resource exhaustion. They are expanded at run-time when the guest
actually tries to use them. The way how this is implemented is that the
host disables MSI-X and then re-enables it with a larger number of
vectors again. That works by chance because most device drivers set up
all interrupts before the device actually will utilize them. But that's
not universally true because some drivers allocate a large enough number
of vectors but do not utilize them until it's actually required,
e.g. for acceleration support. But at that point other interrupts of the
device might be in active use and the MSI-X disable/enable dance can
just result in losing interrupts and therefore hard to diagnose subtle
problems.
Last but not least the "global" PCI/MSI-X domain approach prevents to
utilize PCI/MSI[-X] and PCI/IMS on the same device due to the fact that IMS
is not longer providing a uniform storage and configuration model.
The solution to this is to implement the missing step and switch from
global PCI/MSI domains to per device PCI/MSI domains. The resulting
hierarchy then looks like this:
|--- [PCI/MSI] device 1
[Vector]---[Remapping]---|...
|--- [PCI/MSI] device N
which in turn allows to provide support for multiple domains per device:
|--- [PCI/MSI] device 1
|--- [PCI/IMS] device 1
[Vector]---[Remapping]---|...
|--- [PCI/MSI] device N
|--- [PCI/IMS] device N
This work converts the MSI and PCI/MSI core and the x86 interrupt
domains to the new model, provides new interfaces for post-enable
allocation/free of MSI-X interrupts and the base framework for PCI/IMS.
PCI/IMS has been verified with the work in progress IDXD driver.
There is work in progress to convert ARM over which will replace the
platform MSI train-wreck. The cleanup of VFIO, NTB and other creative
"solutions" are in the works as well.
- Drivers:
- Updates for the LoongArch interrupt chip drivers
- Support for MTK CIRQv2
- The usual small fixes and updates all over the place
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Merge tag 'irq-core-2022-12-10' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq updates from Thomas Gleixner:
"Updates for the interrupt core and driver subsystem:
The bulk is the rework of the MSI subsystem to support per device MSI
interrupt domains. This solves conceptual problems of the current
PCI/MSI design which are in the way of providing support for
PCI/MSI[-X] and the upcoming PCI/IMS mechanism on the same device.
IMS (Interrupt Message Store] is a new specification which allows
device manufactures to provide implementation defined storage for MSI
messages (as opposed to PCI/MSI and PCI/MSI-X that has a specified
message store which is uniform accross all devices). The PCI/MSI[-X]
uniformity allowed us to get away with "global" PCI/MSI domains.
IMS not only allows to overcome the size limitations of the MSI-X
table, but also gives the device manufacturer the freedom to store the
message in arbitrary places, even in host memory which is shared with
the device.
There have been several attempts to glue this into the current MSI
code, but after lengthy discussions it turned out that there is a
fundamental design problem in the current PCI/MSI-X implementation.
This needs some historical background.
When PCI/MSI[-X] support was added around 2003, interrupt management
was completely different from what we have today in the actively
developed architectures. Interrupt management was completely
architecture specific and while there were attempts to create common
infrastructure the commonalities were rudimentary and just providing
shared data structures and interfaces so that drivers could be written
in an architecture agnostic way.
The initial PCI/MSI[-X] support obviously plugged into this model
which resulted in some basic shared infrastructure in the PCI core
code for setting up MSI descriptors, which are a pure software
construct for holding data relevant for a particular MSI interrupt,
but the actual association to Linux interrupts was completely
architecture specific. This model is still supported today to keep
museum architectures and notorious stragglers alive.
In 2013 Intel tried to add support for hot-pluggable IO/APICs to the
kernel, which was creating yet another architecture specific mechanism
and resulted in an unholy mess on top of the existing horrors of x86
interrupt handling. The x86 interrupt management code was already an
incomprehensible maze of indirections between the CPU vector
management, interrupt remapping and the actual IO/APIC and PCI/MSI[-X]
implementation.
At roughly the same time ARM struggled with the ever growing SoC
specific extensions which were glued on top of the architected GIC
interrupt controller.
This resulted in a fundamental redesign of interrupt management and
provided the today prevailing concept of hierarchical interrupt
domains. This allowed to disentangle the interactions between x86
vector domain and interrupt remapping and also allowed ARM to handle
the zoo of SoC specific interrupt components in a sane way.
The concept of hierarchical interrupt domains aims to encapsulate the
functionality of particular IP blocks which are involved in interrupt
delivery so that they become extensible and pluggable. The X86
encapsulation looks like this:
|--- device 1
[Vector]---[Remapping]---[PCI/MSI]--|...
|--- device N
where the remapping domain is an optional component and in case that
it is not available the PCI/MSI[-X] domains have the vector domain as
their parent. This reduced the required interaction between the
domains pretty much to the initialization phase where it is obviously
required to establish the proper parent relation ship in the
components of the hierarchy.
While in most cases the model is strictly representing the chain of IP
blocks and abstracting them so they can be plugged together to form a
hierarchy, the design stopped short on PCI/MSI[-X]. Looking at the
hardware it's clear that the actual PCI/MSI[-X] interrupt controller
is not a global entity, but strict a per PCI device entity.
Here we took a short cut on the hierarchical model and went for the
easy solution of providing "global" PCI/MSI domains which was possible
because the PCI/MSI[-X] handling is uniform across the devices. This
also allowed to keep the existing PCI/MSI[-X] infrastructure mostly
unchanged which in turn made it simple to keep the existing
architecture specific management alive.
A similar problem was created in the ARM world with support for IP
block specific message storage. Instead of going all the way to stack
a IP block specific domain on top of the generic MSI domain this ended
in a construct which provides a "global" platform MSI domain which
allows overriding the irq_write_msi_msg() callback per allocation.
In course of the lengthy discussions we identified other abuse of the
MSI infrastructure in wireless drivers, NTB etc. where support for
implementation specific message storage was just mindlessly glued into
the existing infrastructure. Some of this just works by chance on
particular platforms but will fail in hard to diagnose ways when the
driver is used on platforms where the underlying MSI interrupt
management code does not expect the creative abuse.
Another shortcoming of today's PCI/MSI-X support is the inability to
allocate or free individual vectors after the initial enablement of
MSI-X. This results in an works by chance implementation of VFIO (PCI
pass-through) where interrupts on the host side are not set up upfront
to avoid resource exhaustion. They are expanded at run-time when the
guest actually tries to use them. The way how this is implemented is
that the host disables MSI-X and then re-enables it with a larger
number of vectors again. That works by chance because most device
drivers set up all interrupts before the device actually will utilize
them. But that's not universally true because some drivers allocate a
large enough number of vectors but do not utilize them until it's
actually required, e.g. for acceleration support. But at that point
other interrupts of the device might be in active use and the MSI-X
disable/enable dance can just result in losing interrupts and
therefore hard to diagnose subtle problems.
Last but not least the "global" PCI/MSI-X domain approach prevents to
utilize PCI/MSI[-X] and PCI/IMS on the same device due to the fact
that IMS is not longer providing a uniform storage and configuration
model.
The solution to this is to implement the missing step and switch from
global PCI/MSI domains to per device PCI/MSI domains. The resulting
hierarchy then looks like this:
|--- [PCI/MSI] device 1
[Vector]---[Remapping]---|...
|--- [PCI/MSI] device N
which in turn allows to provide support for multiple domains per
device:
|--- [PCI/MSI] device 1
|--- [PCI/IMS] device 1
[Vector]---[Remapping]---|...
|--- [PCI/MSI] device N
|--- [PCI/IMS] device N
This work converts the MSI and PCI/MSI core and the x86 interrupt
domains to the new model, provides new interfaces for post-enable
allocation/free of MSI-X interrupts and the base framework for
PCI/IMS. PCI/IMS has been verified with the work in progress IDXD
driver.
There is work in progress to convert ARM over which will replace the
platform MSI train-wreck. The cleanup of VFIO, NTB and other creative
"solutions" are in the works as well.
Drivers:
- Updates for the LoongArch interrupt chip drivers
- Support for MTK CIRQv2
- The usual small fixes and updates all over the place"
* tag 'irq-core-2022-12-10' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (134 commits)
irqchip/ti-sci-inta: Fix kernel doc
irqchip/gic-v2m: Mark a few functions __init
irqchip/gic-v2m: Include arm-gic-common.h
irqchip/irq-mvebu-icu: Fix works by chance pointer assignment
iommu/amd: Enable PCI/IMS
iommu/vt-d: Enable PCI/IMS
x86/apic/msi: Enable PCI/IMS
PCI/MSI: Provide pci_ims_alloc/free_irq()
PCI/MSI: Provide IMS (Interrupt Message Store) support
genirq/msi: Provide constants for PCI/IMS support
x86/apic/msi: Enable MSI_FLAG_PCI_MSIX_ALLOC_DYN
PCI/MSI: Provide post-enable dynamic allocation interfaces for MSI-X
PCI/MSI: Provide prepare_desc() MSI domain op
PCI/MSI: Split MSI-X descriptor setup
genirq/msi: Provide MSI_FLAG_MSIX_ALLOC_DYN
genirq/msi: Provide msi_domain_alloc_irq_at()
genirq/msi: Provide msi_domain_ops:: Prepare_desc()
genirq/msi: Provide msi_desc:: Msi_data
genirq/msi: Provide struct msi_map
x86/apic/msi: Remove arch_create_remap_msi_irq_domain()
...
|
||
|
Stephen Boyd
|
0e2c9884cb |
Merge branches 'clk-mediatek', 'clk-trace', 'clk-qcom' and 'clk-microchip' into clk-next
- Tracepoints for clk_rate_request structures * clk-mediatek: clk: mediatek: fix dependency of MT7986 ADC clocks clk: mediatek: Change PLL register API for MT8186 clk: mediatek: Add new clock driver to handle FHCTL hardware dt-bindings: clock: mediatek: Add new bindings of MediaTek frequency hopping clk: mediatek: Export PLL operations symbols clk: mediatek: mt8186-topckgen: Add GPU clock mux notifier clk: mediatek: mt8186-mfg: Propagate rate changes to parent clk: mediatek: mt8195-topckgen: Drop flags for main/univpll fixed factors clk: mediatek: mt8192: Drop flags for main/univpll fixed factors clk: mediatek: mt6795-topckgen: Drop flags for main/sys/univpll fixed factors clk: mediatek: mt8173: Drop flags for main/sys/univpll fixed factors clk: mediatek: mt8183: Drop flags for sys/univpll fixed factors clk: mediatek: mt8183: Compress top_divs array entries clk: mediatek: mt8186-topckgen: Drop flags for main/univpll fixed factors clk: mediatek: clk-mtk: Allow specifying flags on mtk_fixed_factor clocks * clk-trace: clk: Add trace events for rate requests clk: Store clk_core for clk_rate_request * clk-qcom: (69 commits) clk: qcom: rpmh: add support for SM6350 rpmh IPA clock clk: qcom: mmcc-msm8974: use parent_hws/_data instead of parent_names clk: qcom: mmcc-msm8974: move clock parent tables down clk: qcom: mmcc-msm8974: use ARRAY_SIZE instead of specifying num_parents clk: qcom: gcc-msm8974: use parent_hws/_data instead of parent_names clk: qcom: gcc-msm8974: move clock parent tables down clk: qcom: gcc-msm8974: use ARRAY_SIZE instead of specifying num_parents dt-bindings: clocks: qcom,mmcc: define clocks/clock-names for MSM8974 dt-bindings: clock: split qcom,gcc-msm8974,-msm8226 to the separate file clk: qcom: gcc-ipq4019: switch to devm_clk_notifier_register clk: qcom: rpmh: remove usage of platform name clk: qcom: rpmh: rename VRM clock data clk: qcom: rpmh: rename ARC clock data clk: qcom: rpmh: support separate symbol name for the RPMH clocks clk: qcom: rpmh: remove platform names from BCM clocks clk: qcom: rpmh: drop all _ao names clk: qcom: rpmh: reuse common duplicate clocks clk: qcom: rpmh: group clock definitions together clk: qcom: rpm: drop the platform from clock definitions clk: qcom: rpm: drop the _clk suffix completely ... * clk-microchip: clk: microchip: enable the MPFS clk driver by default if SOC_MICROCHIP_POLARFIRE clk: microchip: check for null return of devm_kzalloc() |
||
|
Stephen Boyd
|
e0a1d1394b |
Merge branches 'clk-spear', 'clk-fract', 'clk-rockchip' and 'clk-imx' into clk-next
- Debugfs support for fractional divider clk * clk-spear: clk: spear: Fix SSP clock definition on SPEAr600 clk: spear: Fix CLCD clock definition on SPEAr600 * clk-fract: clk: fractional-divider: Regroup inclusions clk: fractional-divider: Show numerator and denominator in debugfs clk: fractional-divider: Split out clk_fd_get_div() helper * clk-rockchip: clk: rockchip: Fix memory leak in rockchip_clk_register_pll() clk: rockchip: add clock controller for the RK3588 clk: rockchip: add lookup table support clk: rockchip: simplify rockchip_clk_add_lookup clk: rockchip: allow additional mux options for cpu-clock frequency changes clk: rockchip: add pll type for RK3588 clk: rockchip: add register offset of the cores select parent dt-bindings: clock: add rk3588 cru bindings dt-bindings: reset: add rk3588 reset definitions dt-bindings: clock: add rk3588 clock definitions clk: rockchip: use proper crypto0 name on rk3399 * clk-imx: clk: imx: rename imx_obtain_fixed_clk_hw() to imx_get_clk_hw_by_name() clk: imx8mn: fix imx8mn_enet_phy_sels clocks list clk: imx8mn: fix imx8mn_sai2_sels clocks list clk: imx: rename video_pll1 to video_pll clk: imx: replace osc_hdmi with dummy clk: imx8mn: rename vpu_pll to m7_alt_pll clk: imx: imxrt1050: add IMXRT1050_CLK_LCDIF_PIX clock gate clk: imx: imxrt1050: fix IMXRT1050_CLK_LCDIF_APB offsets clk: imx8mp: Add audio shared gate dt-bindings: clock: imx8mp: Add ids for the audio shared gate clk: imx: pll14xx: Add 320 MHz and 640 MHz entries for PLL146x clk: imx93: keep sys ctr clock always on clk: imx: keep hsio bus clock always on clk: imx93: drop tpm1/3, lpit1/2 clk dt-bindings: clock: imx93: drop TPM1/3 LPIT1/2 entry clk: imx93: correct enet clock clk: imx93: unmap anatop base in error handling path clk: imx: imx8mp: add shared clk gate for usb suspend clk dt-bindings: clocks: imx8mp: Add ID for usb suspend clock clk: imx93: correct the flexspi1 clock setting |
||
|
Stephen Boyd
|
83907bf316 |
Merge branches 'clk-bindings', 'clk-renesas', 'clk-amlogic', 'clk-allwinner' and 'clk-ti' into clk-next
* clk-bindings: dt-bindings: clock: ti,cdce925: Convert to DT schema * clk-renesas: (26 commits) clk: renesas: r8a779f0: Fix Ethernet Switch clocks clk: renesas: r8a779g0: Add Z0 clock support clk: renesas: r8a779g0: Add CMT clocks clk: renesas: r8a779g0: Add TMU and SASYNCRT clocks clk: renesas: r8a779f0: Fix SCIF parent clocks clk: renesas: r8a779f0: Fix HSCIF parent clocks clk: renesas: r9a06g032: Repair grave increment error clk: renesas: rzg2l: Don't assume all CPG_MOD clocks support PM clk: renesas: rzg2l: Fix typo in struct rzg2l_cpg_priv kerneldoc clk: renesas: r8a779a0: Fix SD0H clock name clk: renesas: r8a779g0: Add RPC-IF clock clk: renesas: r8a779g0: Add SDHI clocks clk: renesas: r8a779f0: Add SASYNCPER internal clock clk: renesas: r8a779f0: Fix SD0H clock name clk: renesas: r9a07g043: Drop WDT2 clock and reset entry clk: renesas: r9a07g044: Drop WDT2 clock and reset entry clk: renesas: r8a779g0: Add TPU clock clk: renesas: r8a779g0: Add PWM clock clk: renesas: r8a779g0: Add SCIF clocks clk: renesas: r9a07g044: Add MTU3a clock and reset entry ... * clk-amlogic: clk: meson: pll: add pcie lock retry workaround clk: meson: pll: adjust timeout in meson_clk_pll_wait_lock() * clk-allwinner: clk: sunxi-ng: f1c100s: Add IR mod clock clk: sunxi-ng: v3s: Correct the header guard of ccu-sun8i-v3s.h * clk-ti: clk: ti: fix typo in ti_clk_retry_init() code comment clk: ti: dra7-atl: don't allocate `parent_names' variable clk: ti: change ti_clk_register[_omap_hw]() API |
||
|
Stephen Boyd
|
a9fc882f57 |
Merge branches 'clk-x86', 'clk-xilinx', 'clk-cleanup', 'clk-mstar' and 'clk-ingenic' into clk-next
- Make MxL's CGU driver secure compatible - Support for CPU PLL on MStar/SigmaStar SoCs - Ingenic JZ4755 SoC clk support - Support audio clks on X1000 SoCs * clk-x86: clk: mxl: syscon_node_to_regmap() returns error pointers clk: mxl: Fix a clk entry by adding relevant flags clk: mxl: Add option to override gate clks clk: mxl: Remove redundant spinlocks clk: mxl: Switch from direct readl/writel based IO to regmap based IO * clk-xilinx: clk: xilinx: Drop duplicate depends on COMMON_CLK * clk-cleanup: clk: nomadik: correct struct name kernel-doc warning clk: lmk04832: fix kernel-doc warnings clk: lmk04832: drop superfluous #include clk: lmk04832: drop unnecessary semicolons clk: lmk04832: declare variables as const when possible clk: socfpga: Fix memory leak in socfpga_gate_init() clk: st: Fix memory leak in st_of_quadfs_setup() clk: samsung: Fix memory leak in _samsung_clk_register_pll() clk: visconti: Fix memory leak in visconti_register_pll() clk: Remove a useless include clk: samsung: Fix reference to CLK_OF_DECLARE in comment clk: stm32mp1: Staticize ethrx_src clk: keystone: syscon-clk: Use dev_err_probe() helper clk: bulk: Use dev_err_probe() helper in __clk_bulk_get() clk: cdce925: simplify using devm_regulator_get_enable() * clk-mstar: clk: mstar: msc313 cpupll clk driver * clk-ingenic: clk: Add Ingenic JZ4755 CGU driver dt-bindings: clock: Add Ingenic JZ4755 CGU header dt-bindings: ingenic: Add support for the JZ4755 CGU clk: ingenic: Minor cosmetic fixups for X1000 clk: ingenic: Add X1000 audio clocks dt-bindings: ingenic,x1000-cgu: Add audio clocks clk: ingenic: Add .set_rate_hook() for PLL clocks clk: ingenic: Make PLL clock enable_bit and stable_bit optional clk: ingenic: Make PLL clock "od" field optional |
||
|
Linus Torvalds
|
f10bc40168 |
A single update for debugobjetcs:
Add the object pointer to the debug output for better correlation with other debug facilities. -----BEGIN PGP SIGNATURE----- iQJHBAABCgAxFiEEQp8+kY+LLUocC4bMphj1TA10mKEFAmOUeukTHHRnbHhAbGlu dXRyb25peC5kZQAKCRCmGPVMDXSYoWdCD/93/TiOebMyE/ghYWzmbgXPgCS2WD8H Wo7mRqm//4ZkKlpfurSQMjsdabdUyxeD7rSmxk4bgiz6RM9gAiK4ruRg/36tWzoS 2seTgsPaYiluTCI5k6buWejBmO72d3yTAypmnAjHc8yRYverHEEkcUGnxMtiUowg XhmAsFf02zNlTZjwgNAoDDAoEWICTdozWg74j0vYmCP3oH9i08n9JI+TK14C8dUr Rnhigq5mdDDsrNk7336dNPbg5yudT1IPNFtckV+FQ4xIi6xZEsfcP+XMw/K//pEL EJ2WItkcVPCXZCsfHr4QcFgtSDd+XPYcYKvenwLdctceT1/Kely7soYsi1nSc7FA 46Bp+qeVyiASqbYw1O2U4Zec/DEcjdd4PH0ISs2zxX2t1N63F5e6WZ1kfI9IQRA6 wjA9KGD86hX5DCtAUF0zGZNUcSHXjELuL8RNLXlnK3ahDQLNi2hrKrLNLEk9368C BfWjjSDHXY/SK8uITHcwjjCmmTb8YdftLJlxpE35n/tTKdyKxpN4HQBK/dAiaD2/ CsfzyH5XdIDe0jdLo1AT+ukhpSjGetWStbBx9wFY7E88OIIBQfGbwHYofZRcu0+f IjXQxObFO2xqd3U28rM5Oa6Xv/s16tcKxkULxO3lzeDMZ3TD9HzbiJds8Dq8223g I/I7kIrd/XjVag== =JERo -----END PGP SIGNATURE----- Merge tag 'core-debugobjects-2022-12-10' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull debugobjects update from Thomas Gleixner: "A single update for debugobjects: Add the object pointer to the debug output for better correlation with other debug facilities" * tag 'core-debugobjects-2022-12-10' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: debugobjects: Print object pointer in debug_print_object() |
||
|
Linus Torvalds
|
9c2b840a3b |
Three small x86 fixes which did not make it into 6.1:
- Remove a superfluous noinline which prevents GCC-7.3 to optimize a stub
function away.
- Allow uprobes on REP NOP and do not treat them like word-sized branch
instructions.
- Make the VDSO symbol export of __vdso_sgx_enter_enclave() depend on
CONFIG_X86_SGX to prevent build fails with newer LLVM versions which
rightfully detect that there is no function behind the symbol.
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Merge tag 'x86-urgent-2022-12-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Thomas Gleixner:
"Three small x86 fixes which did not make it into 6.1:
- Remove a superfluous noinline which prevents GCC-7.3 to optimize a
stub function away
- Allow uprobes on REP NOP and do not treat them like word-sized
branch instructions
- Make the VDSO symbol export of __vdso_sgx_enter_enclave() depend on
CONFIG_X86_SGX to prevent build failures with newer LLVM versions
which rightfully detect that there is no function behind the
symbol"
* tag 'x86-urgent-2022-12-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/vdso: Conditionally export __vdso_sgx_enter_enclave()
uprobes/x86: Allow to probe a NOP instruction with 0x66 prefix
x86/alternative: Remove noinline from __ibt_endbr_seal[_end]() stubs
|
||
|
Linus Torvalds
|
47477c84b8 |
s390 updates for 6.2 merge window
- Factor out handle_write() function and simplify 3215 console
write operation.
- When 3170 terminal emulator is connected to the 3215 console
driver the boot time could be very long due to limited buffer
space or missing operator input. Add con3215_drop command line
parameter and con3215_drop sysfs attribute file to instruct
the kernel drop console data when such conditions are met.
- Fix white space errors in 3215 console driver.
- Move enum paiext_mode definition to a header file and rename
it to paievt_mode to indicate this is now used for several
events. Rename PAI_MODE_COUNTER to PAI_MODE_COUNTING to make
consistent with PAI_MODE_SAMPLING.
- Simplify the logic of PMU pai_crypto mapped buffer reference
counter and make it consistent with PMU pai_ext.
- Rename PMU pai_crypto mapped buffer structure member users
to active_events to make it consistent with PMU pai_ext.
- Enable HUGETLB_PAGE_OPTIMIZE_VMEMMAP configuration option.
This results in saving of 12K per 1M hugetlb page (~1.2%)
and 32764K per 2G hugetlb page (~1.6%).
- Use generic serial.h, bugs.h, shmparam.h and vga.h header
files and scrap s390-specific versions.
- The generic percpu setup code does not expect the s390-like
implementation and emits a warning. To get rid of that warning
and provide sane CPU-to-node and CPU-to-CPU distance mappings
implementat a minimal version of setup_per_cpu_areas().
- Use kstrtobool() instead of strtobool() for re-IPL sysfs device
attributes.
- Avoid unnecessary lookup of a pointer to MSI descriptor when
setting IRQ affinity for a PCI device.
- Get rid of "an incompatible function type cast" warning by
changing debug_sprintf_format_fn() function prototype so it
matches the debug_format_proc_t function type.
- Remove unused info_blk_hdr__pcpus() and get_page_state()
functions.
- Get rid of clang "unused unused insn cache ops function"
warning by moving s390_insn definition to a private header.
- Get rid of clang "unused function" warning by making function
raw3270_state_final() only available if CONFIG_TN3270_CONSOLE
is enabled.
- Use kstrobool() to parse sclp_con_drop parameter to make it
identical to the con3215_drop parameter and allow passing
values like "yes" and "true".
- Use sysfs_emit() for all SCLP sysfs show functions, which is
the current standard way to generate output strings.
- Make SCLP con_drop sysfs attribute also writable and allow to
change its value during runtime. This makes SCLP console drop
handling consistent with the 3215 device driver.
- Virtual and physical addresses are indentical on s390. However,
there is still a confusion when pointers are directly casted to
physical addresses or vice versa. Use correct address converters
virt_to_phys() and phys_to_virt() for s390 channel IO drivers.
- Support for power managemant has been removed from s390 since
quite some time. Remove unused power managemant code from the
appldata device driver.
- Allow memory tools like KASAN see memory accesses from the
checksum code. Switch to GENERIC_CSUM if KASAN is enabled,
just like x86 does.
- Add support of ECKD DASDs disks so it could be used as boot
and dump devices.
- Follow checkpatch recommendations and use octal values instead
of S_IRUGO and S_IWUSR for dump device attributes in sysfs.
- Changes to vx-insn.h do not cause a recompile of C files that
use asm(".include \"asm/vx-insn.h\"\n") magic to access vector
instruction macros from inline assemblies. Add wrapper include
header file to avoid this problem.
- Use vector instruction macros instead of byte patterns to
increase register validation routine readability.
- The current machine check register validation handling does not
take into account various scenarios and might lead to killing a
wrong user process or potentially ignore corrupted FPU registers.
Simplify logic of the machine check handler and stop the whole
machine if the previous context was kerenel mode. If the previous
context was user mode, kill the current task.
- Introduce sclp_emergency_printk() function which can be used to
emit a message in emergency cases. It is supposed to be used in
cases where regular console device drivers may not work anymore,
e.g. unrecoverable machine checks.
Keep the early Service-Call Control Block so it can also be used
after initdata has been freed to allow sclp_emergency_printk()
implementation.
- In case a system will be stopped because of an unrecoverable
machine check error print the machine check interruption code
to give a hint of what went wrong.
- Move storage error checking from the assembly entry code to C
in order to simplify machine check handling. Enter the handler
with DAT turned on, which simplifies the entry code even more.
- The machine check extended save areas are allocated using
a private "nmi_save_areas" slab cache which guarantees a
required power-of-two alignment. Get rid of that cache in
favour of kmalloc().
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Merge tag 's390-6.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 updates from Alexander Gordeev:
- Factor out handle_write() function and simplify 3215 console write
operation
- When 3170 terminal emulator is connected to the 3215 console driver
the boot time could be very long due to limited buffer space or
missing operator input. Add con3215_drop command line parameter and
con3215_drop sysfs attribute file to instruct the kernel drop console
data when such conditions are met
- Fix white space errors in 3215 console driver
- Move enum paiext_mode definition to a header file and rename it to
paievt_mode to indicate this is now used for several events. Rename
PAI_MODE_COUNTER to PAI_MODE_COUNTING to make consistent with
PAI_MODE_SAMPLING
- Simplify the logic of PMU pai_crypto mapped buffer reference counter
and make it consistent with PMU pai_ext
- Rename PMU pai_crypto mapped buffer structure member users to
active_events to make it consistent with PMU pai_ext
- Enable HUGETLB_PAGE_OPTIMIZE_VMEMMAP configuration option. This
results in saving of 12K per 1M hugetlb page (~1.2%) and 32764K per
2G hugetlb page (~1.6%)
- Use generic serial.h, bugs.h, shmparam.h and vga.h header files and
scrap s390-specific versions
- The generic percpu setup code does not expect the s390-like
implementation and emits a warning. To get rid of that warning and
provide sane CPU-to-node and CPU-to-CPU distance mappings implementat
a minimal version of setup_per_cpu_areas()
- Use kstrtobool() instead of strtobool() for re-IPL sysfs device
attributes
- Avoid unnecessary lookup of a pointer to MSI descriptor when setting
IRQ affinity for a PCI device
- Get rid of "an incompatible function type cast" warning by changing
debug_sprintf_format_fn() function prototype so it matches the
debug_format_proc_t function type
- Remove unused info_blk_hdr__pcpus() and get_page_state() functions
- Get rid of clang "unused unused insn cache ops function" warning by
moving s390_insn definition to a private header
- Get rid of clang "unused function" warning by making function
raw3270_state_final() only available if CONFIG_TN3270_CONSOLE is
enabled
- Use kstrobool() to parse sclp_con_drop parameter to make it identical
to the con3215_drop parameter and allow passing values like "yes" and
"true"
- Use sysfs_emit() for all SCLP sysfs show functions, which is the
current standard way to generate output strings
- Make SCLP con_drop sysfs attribute also writable and allow to change
its value during runtime. This makes SCLP console drop handling
consistent with the 3215 device driver
- Virtual and physical addresses are indentical on s390. However, there
is still a confusion when pointers are directly casted to physical
addresses or vice versa. Use correct address converters
virt_to_phys() and phys_to_virt() for s390 channel IO drivers
- Support for power managemant has been removed from s390 since quite
some time. Remove unused power managemant code from the appldata
device driver
- Allow memory tools like KASAN see memory accesses from the checksum
code. Switch to GENERIC_CSUM if KASAN is enabled, just like x86 does
- Add support of ECKD DASDs disks so it could be used as boot and dump
devices
- Follow checkpatch recommendations and use octal values instead of
S_IRUGO and S_IWUSR for dump device attributes in sysfs
- Changes to vx-insn.h do not cause a recompile of C files that use
asm(".include \"asm/vx-insn.h\"\n") magic to access vector
instruction macros from inline assemblies. Add wrapper include header
file to avoid this problem
- Use vector instruction macros instead of byte patterns to increase
register validation routine readability
- The current machine check register validation handling does not take
into account various scenarios and might lead to killing a wrong user
process or potentially ignore corrupted FPU registers. Simplify logic
of the machine check handler and stop the whole machine if the
previous context was kerenel mode. If the previous context was user
mode, kill the current task
- Introduce sclp_emergency_printk() function which can be used to emit
a message in emergency cases. It is supposed to be used in cases
where regular console device drivers may not work anymore, e.g.
unrecoverable machine checks
Keep the early Service-Call Control Block so it can also be used
after initdata has been freed to allow sclp_emergency_printk()
implementation
- In case a system will be stopped because of an unrecoverable machine
check error print the machine check interruption code to give a hint
of what went wrong
- Move storage error checking from the assembly entry code to C in
order to simplify machine check handling. Enter the handler with DAT
turned on, which simplifies the entry code even more
- The machine check extended save areas are allocated using a private
"nmi_save_areas" slab cache which guarantees a required power-of-two
alignment. Get rid of that cache in favour of kmalloc()
* tag 's390-6.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (38 commits)
s390/nmi: get rid of private slab cache
s390/nmi: move storage error checking back to C, enter with DAT on
s390/nmi: print machine check interruption code before stopping system
s390/sclp: introduce sclp_emergency_printk()
s390/sclp: keep sclp_early_sccb
s390/nmi: rework register validation handling
s390/nmi: use vector instruction macros instead of byte patterns
s390/vx: add vx-insn.h wrapper include file
s390/ipl: use octal values instead of S_* macros
s390/ipl: add eckd dump support
s390/ipl: add eckd support
vfio/ccw: identify CCW data addresses as physical
vfio/ccw: sort out physical vs virtual pointers usage
s390/checksum: support GENERIC_CSUM, enable it for KASAN
s390/appldata: remove power management callbacks
s390/cio: sort out physical vs virtual pointers usage
s390/sclp: allow to change sclp_console_drop during runtime
s390/sclp: convert to use sysfs_emit()
s390/sclp: use kstrobool() to parse sclp_con_drop parameter
s390/3270: make raw3270_state_final() depend on CONFIG_TN3270_CONSOLE
...
|
||
|
Linus Torvalds
|
49d07f010c |
m68k updates for v6.2
- Remove an unused function involving a non-explictly signed char
type,
- Reword a (correct) comment to stop the inflood of (incorrect)
patches trying to fix it,
- Defconfig updates.
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Merge tag 'm68k-for-v6.2-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k
Pull m68k updates from Geert Uytterhoeven:
- remove an unused function involving a non-explictly signed char type
- reword a (correct) comment to stop the inflood of (incorrect) patches
trying to fix it
- defconfig updates
* tag 'm68k-for-v6.2-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k:
m68k: defconfig: Update defconfigs for v6.1-rc1
m68k: mac: Reword comment using double "in"
m68k: mac: Remove unused rbv_set_video_bpp()
|
||
|
Linus Torvalds
|
5977aa66c4 |
- DT cleanups
- fix for early use of kzalloc on mt7621 platform - cleanups and fixes -----BEGIN PGP SIGNATURE----- iQJOBAABCAA4FiEEbt46xwy6kEcDOXoUeZbBVTGwZHAFAmOW+3QaHHRzYm9nZW5k QGFscGhhLmZyYW5rZW4uZGUACgkQeZbBVTGwZHAk7Q/5AWmm+85Iq8MTna1D7muw FIFC7edvvj5qBTWzhzUiGTsNcAgYEqAcLLtaSdbi29LW0YiBMxMPis2kIJgEruQz DAXa7gM6Am3ac/nk+WUTZjyaMeoox0KlX08XmU/a0XsJehsfbfGwdx4dzhHM5YDa 6J9gAwQPfO3do55MnSrKxqyhGQUuz93AitA5OxQ67PqaRoqKij144n3QMoFFLMBt uxZhc2K7sVK68le6plqBC18SwRTgQjfoVgXBJhvnwKbkpr8VTKaBmVp68e6Atr7f S5C1/MEWzqg5/TM9GOON8MRU38WU20RMOwC4PT27pAPSBLw0xmEx1wKKUvA0Czbr YhclsHCchqEJ6zCo5AVDhTzAKartcZ8P1CpPkutgljpWtfJaHIfilPeRk6Zq42gj CRtC5iwVExid+tB5upz3+7h7U0DCf5O8qwF4FhRFo8cBXLuPe5FFZHjJloXwMjOT AC4hvYBSf2gr0k/zDW0rfLsQllyFKEX2ovXa87CVzvGJ3wH6KX2ibSyllOhz+y/a 8a7VFRd79VPx6b/gHRMEjpRcUB1jFV4q2W0rOau8O+YXNgYABchXbj5WoLtrIeXH Mf6WezORDDFcnNZ0DTQ854zOPe5UT47M0sW+H+6pAfIY3YiPbB8+DTiJhs4yPDjJ dMNu2pfmOzVrbBfU2Qlnfxc= =0llC -----END PGP SIGNATURE----- Merge tag 'mips_6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux Pull MIPS updates from Thomas Bogendoerfer: - DT cleanups - fix for early use of kzalloc on mt7621 platform - cleanups and fixes * tag 'mips_6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux: (21 commits) MIPS: OCTEON: warn only once if deprecated link status is being used MIPS: BCM63xx: Add check for NULL for clk in clk_enable platform/mips: Adjust Kconfig to keep consistency MIPS: OCTEON: cvmx-bootmem: use strscpy() to instead of strncpy() MIPS: mscc: jaguar2: Fix pca9545 i2c-mux node names mips/pci: use devm_platform_ioremap_resource() mips: ralink: mt7621: do not use kzalloc too early mips: ralink: mt7621: soc queries and tests as functions mips: ralink: mt7621: define MT7621_SYSC_BASE with __iomem MIPS: Restore symbol versions for copy_page_cpu and clear_page_cpu mips: dts: remove label = "cpu" from DSA dt-binding mips: ralink: mt7621: change DSA port labels to generic naming mips: ralink: mt7621: fix phy-mode of external phy on GB-PC2 MIPS: vpe-cmp: fix possible memory leak while module exiting MIPS: vpe-mt: fix possible memory leak while module exiting dt-bindings: mips: brcm: add Broadcom SoCs bindings dt-bindings: mips: add CPU bindings for MIPS architecture mips: dts: brcm: bcm7435: add "interrupt-names" for NAND controller mips: dts: bcm63268: add TWD block timer MIPS: Use "grep -E" instead of "egrep" ... |