Commit graph

1,233,488 commits

Author SHA1 Message Date
Pieter Jansen van Vuuren
64848f062e sfc: introduce pedit add actions on the ipv4 ttl field
Introduce pedit add actions and use it to achieve decrement ttl offload.
Decrement ttl can be achieved by adding 0xff to the ttl field.

Co-developed-by: Edward Cree <ecree.xilinx@gmail.com>
Signed-off-by: Edward Cree <ecree.xilinx@gmail.com>
Signed-off-by: Pieter Jansen van Vuuren <pieter.jansen-van-vuuren@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-08-27 06:56:54 +01:00
Pieter Jansen van Vuuren
9dbc8d2b9a sfc: add decrement ipv6 hop limit by offloading set hop limit actions
Offload pedit set ipv6 hop limit, where the hop limit has already been
matched and the new value is one less, by translating it to a decrement.

Co-developed-by: Edward Cree <ecree.xilinx@gmail.com>
Signed-off-by: Edward Cree <ecree.xilinx@gmail.com>
Signed-off-by: Pieter Jansen van Vuuren <pieter.jansen-van-vuuren@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-08-27 06:56:54 +01:00
Pieter Jansen van Vuuren
66f7288726 sfc: add decrement ttl by offloading set ipv4 ttl actions
Offload pedit set ipv4 ttl field, where the ttl field has already been
matched and the new value is one less, by translating it to a decrement.

Co-developed-by: Edward Cree <ecree.xilinx@gmail.com>
Signed-off-by: Edward Cree <ecree.xilinx@gmail.com>
Signed-off-by: Pieter Jansen van Vuuren <pieter.jansen-van-vuuren@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-08-27 06:56:54 +01:00
Pieter Jansen van Vuuren
0c676503bd sfc: add mac source and destination pedit action offload
Introduce the first pedit set offload functionality for the sfc driver.
In addition to this, add offload functionality for both mac source and
destination pedit set actions.

Co-developed-by: Edward Cree <ecree.xilinx@gmail.com>
Signed-off-by: Edward Cree <ecree.xilinx@gmail.com>
Signed-off-by: Pieter Jansen van Vuuren <pieter.jansen-van-vuuren@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-08-27 06:56:54 +01:00
Pieter Jansen van Vuuren
439c4be983 sfc: introduce ethernet pedit set action infrastructure
Introduce the initial ethernet pedit set action infrastructure in
preparation for adding mac src and dst pedit action offloads.

Co-developed-by: Edward Cree <ecree.xilinx@gmail.com>
Signed-off-by: Edward Cree <ecree.xilinx@gmail.com>
Signed-off-by: Pieter Jansen van Vuuren <pieter.jansen-van-vuuren@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-08-27 06:56:54 +01:00
Vincent Whitchurch
974b808d85 um: virt-pci: fix missing declaration warning
Fix this warning which appears with W=1 and without CONFIG_OF:

 warning: no previous declaration for 'pcibios_get_phb_of_node'

Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202308230949.PphIIlhq-lkp@intel.com/
Fixes: 314a1408b7 ("um: virt-pci: implement pcibios_get_phb_of_node()")
Signed-off-by: Vincent Whitchurch <vincent.whitchurch@axis.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
2023-08-26 22:49:49 +02:00
Justin Stitt
32280e83b5 um: Refactor deprecated strncpy to memcpy
Use `memcpy` since `console_buf` is not expected to be NUL-terminated
and it more accurately describes what is happening with the buffers
`console_buf` and `string` as per Kees' analysis [1].

Also mark char buffer as `__nonstring` as per Kees' suggestion [2].

This change now makes it more clear what this code does and that
`console_buf` is not expected to be NUL-terminated.

Link: https://lore.kernel.org/all/202308081708.D5ADC80F@keescook/ [1]
Link: https://github.com/KSPP/linux/issues/90 [2]
Link: https://www.kernel.org/doc/html/latest/process/deprecated.html#strncpy-on-nul-terminated-strings
Cc: linux-hardening@vger.kernel.org
Suggested-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Justin Stitt <justinstitt@google.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
2023-08-26 22:48:38 +02:00
Nick Desaulniers
ab7ca2eb63 um: fix 3 instances of -Wmissing-prototypes
Fixes the following build errors observed from W=1 builds:
  arch/um/drivers/xterm_kern.c:35:5: warning: no previous prototype for
  function 'xterm_fd' [-Wmissing-prototypes]
  35 | int xterm_fd(int socket, int *pid_out)
     |     ^
  arch/um/drivers/xterm_kern.c:35:1: note: declare 'static' if the
  function is not intended to be used outside of this translation unit
  35 | int xterm_fd(int socket, int *pid_out)
     | ^
     | static
  arch/um/drivers/chan_kern.c:183:6: warning: no previous prototype for
  function 'free_irqs' [-Wmissing-prototypes]
  183 | void free_irqs(void)
      |      ^
  arch/um/drivers/chan_kern.c:183:1: note: declare 'static' if the
  function is not intended to be used outside of this translation unit
  183 | void free_irqs(void)
      | ^
      | static
  arch/um/drivers/slirp_kern.c:18:6: warning: no previous prototype for
  function 'slirp_init' [-Wmissing-prototypes]
  18 | void slirp_init(struct net_device *dev, void *data)
     |      ^
  arch/um/drivers/slirp_kern.c:18:1: note: declare 'static' if the
  function is not intended to be used outside of this translation unit
  18 | void slirp_init(struct net_device *dev, void *data)
     | ^
     | static

Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202308081050.sZEw4cQ5-lkp@intel.com/
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
2023-08-26 22:45:05 +02:00
Nick Desaulniers
4b038701e3 um: port_kern: fix -Wmissing-variable-declarations
I'm looking to enable -Wmissing-variable-declarations behind W=1. 0day
bot spotted the following instance:

  arch/um/drivers/port_kern.c:147:14: warning: no previous extern
  declaration for non-static variable 'port_work'
  [-Wmissing-variable-declarations]
  DECLARE_WORK(port_work, port_work_proc);
               ^
  arch/um/drivers/port_kern.c:147:1: note: declare 'static' if the
  variable is not intended to be used outside of this translation unit
  DECLARE_WORK(port_work, port_work_proc);
  ^

This symbol is not referenced by more than one translation unit, so give
it static storage.

Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/llvm/202308081050.sZEw4cQ5-lkp@intel.com/
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
2023-08-26 22:44:37 +02:00
Nick Desaulniers
b10eee784c uml: audio: fix -Wmissing-variable-declarations
I'm looking to enable -Wmissing-variable-declarations behind W=1. 0day
bot spotted the following instance:

  arch/um/drivers/hostaudio_kern.c:316:3: warning: no previous extern
  declaration for non-static variable 'module_data'
  [-Wmissing-variable-declarations]
  } module_data;
    ^
  arch/um/drivers/hostaudio_kern.c:313:1: note: declare 'static' if the
  variable is not intended to be used outside of this translation unit
  struct {
  ^

This symbol is not referenced by more than one translation unit, so give
it static storage.

Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/llvm/202308081050.sZEw4cQ5-lkp@intel.com/
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
2023-08-26 22:43:42 +02:00
Justin Stitt
e30955d029 um: vector: refactor deprecated strncpy
`strncpy` is deprecated for use on NUL-terminated destination strings [1].

A suitable replacement is `strscpy` [2] due to the fact that it
guarantees NUL-termination on its destination buffer argument which is
_not_ the case for `strncpy`!

In this case, we are able to drop the now superfluous `... - 1`
instances because `strscpy` will automatically truncate the last byte by
setting it to a NUL byte if the source size exceeds the destination size
or if the source string is not NUL-terminated.

I've also opted to remove the seemingly useless char* casts. I'm not
sure why they're present at all since (after expanding the `ifr_name`
macro) `ifr.ifr_ifrn.ifrn_name` is a char* already.

All in all, `strscpy` is a more robust and less ambiguous interface
while also letting us remove some `... -1`'s which cleans things up a
bit.

[1]: www.kernel.org/doc/html/latest/process/deprecated.html#strncpy-on-nul-terminated-strings
[2]: https://manpages.debian.org/testing/linux-manual-4.8/strscpy.9.en.html

Link: https://github.com/KSPP/linux/issues/90
Cc: linux-hardening@vger.kernel.org
Signed-off-by: Justin Stitt <justinstitt@google.com>
Acked-by: Anton Ivanov <anton.ivanov@cambridgegreys.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
2023-08-26 22:42:50 +02:00
Masahiro Yamada
8f85f93bfd um: use obj-y to descend into arch/um/*/
The single build rule does not work with the core-y syntax. [1]

Use the standard obj-y syntax.

[1]: https://lore.kernel.org/linux-kbuild/d57ba55f-20a3-b836-783d-b49c8a161b6e@kernel.org/T/#m7bc402e1e038f00ebcf2e92ed7fcb8a52fc1ea44

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Tested-by: Jiri Slaby <jirislaby@kernel.org>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Tested-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
2023-08-26 22:41:34 +02:00
Masahiro Yamada
d32df1080f um: Hard-code the result of 'uname -s'
We rely on 'uname -s' returning 'Linux' because there are os-Linux/
directories, but no other os-*/.

Supporting a non-Linux host is unlikely to happen.

Let's hard-code 'Linux'.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Richard Weinberger <richard@nod.at>
2023-08-26 22:40:37 +02:00
David Gow
ff3f786079 um: Use the x86 checksum implementation on 32-bit
When UML is compiled under 32-bit x86, it uses its own copy of
checksum_32.S, which is terribly out-of-date and doesn't support
checksumming unaligned data.

This causes the new "checksum" KUnit test to fail:
./tools/testing/kunit/kunit.py run --kconfig_add CONFIG_64BIT=n --cross_compile i686-linux-gnu- checksum
    KTAP version 1
    # Subtest: checksum
    1..3
    # test_csum_fixed_random_inputs: ASSERTION FAILED at lib/checksum_kunit.c:243
    Expected result == expec, but
        result == 33316 (0x8224)
        expec == 33488 (0x82d0)
    not ok 1 test_csum_fixed_random_inputs
    # test_csum_all_carry_inputs: ASSERTION FAILED at lib/checksum_kunit.c:267
    Expected result == expec, but
        result == 65280 (0xff00)
        expec == 0 (0x0)
    not ok 2 test_csum_all_carry_inputs
    # test_csum_no_carry_inputs: ASSERTION FAILED at lib/checksum_kunit.c:306
    Expected result == expec, but
        result == 65531 (0xfffb)
        expec == 0 (0x0)
    not ok 3 test_csum_no_carry_inputs

Sharing the normal implementation in arch/x86/lib both fixes all of
these issues and means any further fixes only need to be done once.

x86_64 already seems to share the same implementation between UML and
"normal" x86.

Signed-off-by: David Gow <davidgow@google.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
2023-08-26 22:39:24 +02:00
David Gow
760ee8f838 asm-generic: current: Don't include thread-info.h if building asm
asm/current.h is included by some assembly files (either directly, or
indirectly). This works on some architectures (such as x86), as their
implementation of current.h is careful to not include any C, but the
asm-generic version includes linux/thread-info.h unconditionally, which
leads to errors when either C code or non-asm-compatible preprocessor
directives are included.

Just wrap the contents behind an #ifndef __ASSEMBLY__ to avoid any C
code making its way in.

Signed-off-by: David Gow <davidgow@google.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Richard Weinberger <richard@nod.at>
2023-08-26 22:38:49 +02:00
YueHaibing
11ae290ee6 um: Remove unsued extern declaration ldt_host_info()
This is unused now, so can remove it.

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
2023-08-26 22:36:14 +02:00
Linus Torvalds
28f20a1929 Fix an FPU invalidation bug on exec(), and fix a performance
regression due to a missing setting of X86_FEATURE_OSXSAVE.
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'x86-urgent-2023-08-26' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 fixes from Ingo Molnar:
 "Fix an FPU invalidation bug on exec(), and fix a performance
  regression due to a missing setting of X86_FEATURE_OSXSAVE"

* tag 'x86-urgent-2023-08-26' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/fpu: Set X86_FEATURE_OSXSAVE feature after enabling OSXSAVE in CR4
  x86/fpu: Invalidate FPU state correctly on exec()
2023-08-26 10:57:29 -07:00
Linus Torvalds
3b35375f19 A last minute fix for a regression introduced in the v6.5 merge window. The
conversion of the software based interrupt resend mechanism to hlist missed
 to add a check whether the descriptor is already enqueued and dropped the
 interrupt descriptor lookup for nested interrupts.
 
 The missing check whether the descriptor is already queued causes hlist
 corruption and can be observed in the wild. The dropped parent descriptor
 lookup has not yet caused problems, but it would result in stale interrupt
 line in the worst case.
 
 Add the missing enqueued check and bring the descriptor lookup back to cure
 this.
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Merge tag 'irq-urgent-2023-08-26' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull irq fix from Thomas Gleixner:
 "A last minute fix for a regression introduced in the v6.5 merge
  window.

  The conversion of the software based interrupt resend mechanism to
  hlist missed to add a check whether the descriptor is already enqueued
  and dropped the interrupt descriptor lookup for nested interrupts.

  The missing check whether the descriptor is already queued causes
  hlist corruption and can be observed in the wild. The dropped parent
  descriptor lookup has not yet caused problems, but it would result in
  stale interrupt line in the worst case.

  Add the missing enqueued check and bring the descriptor lookup back to
  cure this"

* tag 'irq-urgent-2023-08-26' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  genirq: Fix software resend lockup and nested resend
2023-08-26 10:34:29 -07:00
Linus Torvalds
c313761337 LoongArch fixes for v6.5-final
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Merge tag 'loongarch-fixes-6.5-2' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson

Pull LoongArch fixes from Huacai Chen:
 "Fix a ptrace bug, a hw_breakpoint bug, some build errors/warnings and
  some trivial cleanups"

* tag 'loongarch-fixes-6.5-2' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson:
  LoongArch: Fix hw_breakpoint_control() for watchpoints
  LoongArch: Ensure FP/SIMD registers in the core dump file is up to date
  LoongArch: Put the body of play_dead() into arch_cpu_idle_dead()
  LoongArch: Add identifier names to arguments of die() declaration
  LoongArch: Return earlier in die() if notify_die() returns NOTIFY_STOP
  LoongArch: Do not kill the task in die() if notify_die() returns NOTIFY_STOP
  LoongArch: Remove <asm/export.h>
  LoongArch: Replace #include <asm/export.h> with #include <linux/export.h>
  LoongArch: Remove unneeded #include <asm/export.h>
  LoongArch: Replace -ffreestanding with finer-grained -fno-builtin's
  LoongArch: Remove redundant "source drivers/firmware/Kconfig"
2023-08-26 10:28:52 -07:00
Johan Hovold
9f5deb5516 genirq: Fix software resend lockup and nested resend
The switch to using hlist for managing software resend of interrupts
broke resend in at least two ways:

First, unconditionally adding interrupt descriptors to the resend list can
corrupt the list when the descriptor in question has already been
added. This causes the resend tasklet to loop indefinitely with interrupts
disabled as was recently reported with the Lenovo ThinkPad X13s after
threaded NAPI was disabled in the ath11k WiFi driver.

This bug is easily fixed by restoring the old semantics of irq_sw_resend()
so that it can be called also for descriptors that have already been marked
for resend.

Second, the offending commit also broke software resend of nested
interrupts by simply discarding the code that made sure that such
interrupts are retriggered using the parent interrupt.

Add back the corresponding code that adds the parent descriptor to the
resend list.

Fixes: bc06a9e087 ("genirq: Use hlist for managing resend handlers")
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/lkml/20230809073432.4193-1-johan+linaro@kernel.org/
Link: https://lore.kernel.org/r/20230826154004.1417-1-johan+linaro@kernel.org
2023-08-26 19:14:31 +02:00
Manivannan Sadhasivam
06eea7d18f
PCI: endpoint: Add kernel-doc for pci_epc_mem_init() API
Add missing kernel-doc for pci_epc_mem_init() API.

Link: https://lore.kernel.org/linux-pci/20230717065459.14138-8-manivannan.sadhasivam@linaro.org
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
2023-08-26 16:54:46 +00:00
Manivannan Sadhasivam
127c66c3b9
PCI: epf-mhi: Use iATU for small transfers
For transfers below 4K, let's use iATU since using eDMA for such small
transfers is inefficient.

This is mainly because setting up an eDMA transfer and waiting for
completion adds some latency. This latency is negligible for large
transfers but not for the smaller ones.

With using iATU, there is an increase in ~50Mbps throughput on both MHI
UL (Uplink) and DL (Downlink) channels.

[kwilczynski: commit log]
Link: https://lore.kernel.org/linux-pci/20230717065459.14138-7-manivannan.sadhasivam@linaro.org
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>
2023-08-26 16:54:46 +00:00
Manivannan Sadhasivam
8ab8a31645
PCI: epf-mhi: Add support for SM8450
Add support for Qualcomm Snapdragon SM8450 SoC to the EPF driver. SM8450
has the dedicated PID (0x0306) and supports eDMA. Currently, it has no
fixed PCI class, so it is being advertised as "PCI_CLASS_OTHERS".

Link: https://lore.kernel.org/linux-pci/20230717065459.14138-6-manivannan.sadhasivam@linaro.org
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>
2023-08-26 16:54:46 +00:00
Manivannan Sadhasivam
7b99aaadda
PCI: epf-mhi: Add eDMA support
Add support for Embedded DMA (eDMA) available in the DesignWare PCIe IP
to transfer the MHI buffers between the host and the endpoint. The eDMA
use helps achieve greater throughput as the transfers are offloaded from
CPUs.

For differentiating the iATU and eDMA APIs, the pci_epf_mhi_{read/write}
APIs are renamed to pci_epf_mhi_iatu_{read/write} and separate eDMA
specific APIs pci_epf_mhi_edma_{read/write} are introduced.

Platforms that require eDMA support can pass the MHI_EPF_USE_DMA flag
through pci_epf_mhi_ep_info.

[kwilczynski: commit log]
Link: https://lore.kernel.org/linux-pci/20230717065459.14138-5-manivannan.sadhasivam@linaro.org
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>
2023-08-26 16:54:45 +00:00
Manivannan Sadhasivam
ff8d92038c
PCI: qcom-ep: Add eDMA support
Qualcomm PCIe Endpoint controllers have the in-built Embedded DMA (eDMA)
peripheral for offloading the data transfer between the PCIe bus and
memory.

Let's add support for it by enabling the eDMA IRQ in the driver. The
eDMA DMA Engine driver will handle the rest of the functionality.

Since the eDMA on Qualcomm platforms only uses a single IRQ for all
channels, use 1 for edma.nr_irqs.

[kwilczynski: commit log]
Link: https://lore.kernel.org/linux-pci/20230717065459.14138-4-manivannan.sadhasivam@linaro.org
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>
2023-08-26 16:54:45 +00:00
Manivannan Sadhasivam
d9d9f26f16
PCI: epf-mhi: Make use of the alignment restriction from EPF core
Instead of hardcoding the alignment restriction in the EPF_MHI driver, make
use of the info available from the EPF core that reflects the alignment
restriction of the endpoint controller.

For this purpose, let's introduce the get_align_offset() static function.

[kwilczynski: update get_align_offset() to avoid issues on 32-bit architectures]
Link: https://lore.kernel.org/linux-pci/20230717065459.14138-3-manivannan.sadhasivam@linaro.org
Link: https://lore.kernel.org/linux-pci/20230826150626.23309-1-manivannan.sadhasivam@linaro.org
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>
2023-08-26 16:54:45 +00:00
Arthur Grillo
bb7f98db31
drm/tests: Add KUnit tests for drm_fb_memcpy()
Insert parameterized test for the drm_fb_memcpy() to ensure correctness
and prevent future regressions. The test case can accept different
formats.

Signed-off-by: Arthur Grillo <arthurgrillo@riseup.net>
Signed-off-by: Maíra Canal <mairacanal@riseup.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20230814-gsoc-drm-format-test-v2-v3-6-bd3e9f9bc2fb@riseup.net
2023-08-26 11:36:17 -03:00
Arthur Grillo
af4fd86a5c
drm/tests: Add multi-plane support to conversion_buf_size()
The drm_fb_memcpy() supports multi-plane formats. To fully test it in
the future, add multi-plane support to the conversion_buf_size() helper.

Signed-off-by: Arthur Grillo <arthurgrillo@riseup.net>
Reviewed-by: Maíra Canal <mairacanal@riseup.net>
Signed-off-by: Maíra Canal <mairacanal@riseup.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20230814-gsoc-drm-format-test-v2-v3-5-bd3e9f9bc2fb@riseup.net
2023-08-26 11:36:17 -03:00
Arthur Grillo
371e0b186a
drm/tests: Add KUnit tests for drm_fb_build_fourcc_list()
Insert parameterized test for the drm_fb_build_fourcc_list() to ensure
correctness and prevent future regressions.

Signed-off-by: Arthur Grillo <arthurgrillo@riseup.net>
Signed-off-by: Maíra Canal <mairacanal@riseup.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20230814-gsoc-drm-format-test-v2-v3-4-bd3e9f9bc2fb@riseup.net
2023-08-26 11:36:17 -03:00
Arthur Grillo
c6099d7ed3
drm/tests: Add KUnit tests for drm_fb_clip_offset()
Insert parameterized test for the drm_fb_clip_offset() to ensure
correctness and prevent future regressions.

Signed-off-by: Arthur Grillo <arthurgrillo@riseup.net>
Reviewed-by: Maíra Canal <mairacanal@riseup.net>
Signed-off-by: Maíra Canal <mairacanal@riseup.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20230814-gsoc-drm-format-test-v2-v3-3-bd3e9f9bc2fb@riseup.net
2023-08-26 11:36:16 -03:00
Arthur Grillo
97eacd052d
drm/tests: Add KUnit tests for drm_fb_swab()
Insert parameterized test for the drm_fb_swab() to ensure correctness
and prevent future regressions.

Each expected color has it bytes reversed in order, so xrgb would be
bgrx.

Signed-off-by: Arthur Grillo <arthurgrillo@riseup.net>
Reviewed-by: Maíra Canal <mairacanal@riseup.net>
Signed-off-by: Maíra Canal <mairacanal@riseup.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20230814-gsoc-drm-format-test-v2-v3-2-bd3e9f9bc2fb@riseup.net
2023-08-26 11:36:16 -03:00
Arthur Grillo
ef8e29b16f
drm/tests: Test default pitch fallback
Test the default pitch fallback when NULL is passed as the dst_pitch on
the conversion procedures.

Reviewed-by: Maíra Canal <mairacanal@riseup.net>
Signed-off-by: Arthur Grillo <arthurgrillo@riseup.net>
Signed-off-by: Maíra Canal <mairacanal@riseup.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20230814-gsoc-drm-format-test-v2-v3-1-bd3e9f9bc2fb@riseup.net
2023-08-26 11:36:10 -03:00
Huacai Chen
9730870b48 LoongArch: Fix hw_breakpoint_control() for watchpoints
In hw_breakpoint_control(), encode_ctrl_reg() has already encoded the
MWPnCFG3_LoadEn/MWPnCFG3_StoreEn bits in info->ctrl. We don't need to
add (1 << MWPnCFG3_LoadEn | 1 << MWPnCFG3_StoreEn) unconditionally.

Otherwise we can't set read watchpoint and write watchpoint separately.

Cc: stable@vger.kernel.org
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
2023-08-26 22:21:57 +08:00
Huacai Chen
656f9aec07 LoongArch: Ensure FP/SIMD registers in the core dump file is up to date
This is a port of commit 379eb01c21 ("riscv: Ensure the value
of FP registers in the core dump file is up to date").

The values of FP/SIMD registers in the core dump file come from the
thread.fpu. However, kernel saves the FP/SIMD registers only before
scheduling out the process. If no process switch happens during the
exception handling, kernel will not have a chance to save the latest
values of FP/SIMD registers. So it may cause their values in the core
dump file incorrect. To solve this problem, force fpr_get()/simd_get()
to save the FP/SIMD registers into the thread.fpu if the target task
equals the current task.

Cc: stable@vger.kernel.org
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
2023-08-26 22:21:57 +08:00
Lukas Bulwahn
4d2b748305 x86/microcode: Remove remaining references to CONFIG_MICROCODE_AMD
Commit e6bcfdd75d ("x86/microcode: Hide the config knob") removed the
MICROCODE_AMD config, but left some references in defconfigs and comments,
that have no effect on any kernel build around.

Clean up those remaining config references. No functional change.

Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: Borislav Petkov (AMD) <bp@alien8.de>
Link: https://lore.kernel.org/r/20230825141226.13566-1-lukas.bulwahn@gmail.com
2023-08-26 13:37:55 +02:00
Vincent Donnefort
f156a7d13f KVM: arm64: Remove size-order align in the nVHE hyp private VA range
commit f922c13e77 ("KVM: arm64: Introduce
pkvm_alloc_private_va_range()") and commit 92abe0f81e ("KVM: arm64:
Introduce hyp_alloc_private_va_range()") added an alignment for the
start address of any allocation into the nVHE hypervisor private VA
range.

This alignment (order of the size of the allocation) intends to enable
efficient stack verification (if the PAGE_SHIFT bit is zero, the stack
pointer is on the guard page and a stack overflow occurred).

But this is only necessary for stack allocation and can waste a lot of
VA space. So instead make stack-specific functions, handling the guard
page requirements, while other users (e.g.  fixmap) will only get page
alignment.

Reviewed-by: Kalesh Singh <kaleshsingh@google.com>
Signed-off-by: Vincent Donnefort <vdonnefort@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20230811112037.1147863-1-vdonnefort@google.com
2023-08-26 12:00:54 +01:00
Mario Limonciello
4dbd6e61ad platform/x86/amd/pmf: Fix a missing cleanup path
On systems that support slider notifications but don't otherwise support
granular slider the SPS cleanup path doesn't run.

This means that loading/unloading/loading leads to failures because
the sysfs files don't get setup properly when reloaded.

Add the missing cleanup path.

Fixes: 33c9ab5b49 ("platform/x86/amd/pmf: Notify OS power slider update")
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Link: https://lore.kernel.org/r/20230823185421.23959-1-mario.limonciello@amd.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2023-08-26 12:25:56 +02:00
Utkarsh Patel
aad6ad1b78 platform/chrome: cros_ec_typec: Configure Retimer cable type
Connector class driver only configure cable type active or passive.
Configure if the cable type is retimer or redriver with this change.
This detail will be provided as a part of cable discover mode VDO.

Signed-off-by: Utkarsh Patel <utkarsh.h.patel@intel.com>
Acked-by: Prashant Malani <pmalani@chromium.org>
Link: https://lore.kernel.org/r/20230718024703.1013367-2-utkarsh.h.patel@intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-08-26 11:11:07 +02:00
Helge Deller
358ad816e5 parisc: led: Reduce CPU overhead for disk & lan LED computation
Older PA-RISC machines have LEDs which show the disk- and LAN-activity.
The computation is done in software and takes quite some time, e.g. on a
J6500 this may take up to 60% time of one CPU if the machine is loaded
via network traffic.

Since most people don't care about the LEDs, start with LEDs disabled and
just show a CPU heartbeat LED. The disk and LAN LEDs can be turned on
manually via /proc/pdc/led.

Signed-off-by: Helge Deller <deller@gmx.de>
Cc: <stable@vger.kernel.org>
2023-08-26 10:14:42 +02:00
Oswald Buddenhagen
0982e519df ALSA: emu10k1: add separate documentation for E-MU cards
They are sufficiently different from Sound Blasters.

Signed-off-by: Oswald Buddenhagen <oswald.buddenhagen@gmx.de>
Link: https://lore.kernel.org/r/20230825222157.170978-3-oswald.buddenhagen@gmx.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-08-26 09:25:17 +02:00
Oswald Buddenhagen
13890a6a87 ALSA: emu10k1: more documentation updates
- Clarify the data flows. For SB Live! I fixed only the most obvious
  point ("from" vs. "for").
- Mention 7.1 side channels on Audigy.
- Be unspecific about the output DACs on Audigy, as lots of variants
  actually exist (see emu_chip_details table).

Signed-off-by: Oswald Buddenhagen <oswald.buddenhagen@gmx.de>
Link: https://lore.kernel.org/r/20230825222157.170978-2-oswald.buddenhagen@gmx.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-08-26 09:25:08 +02:00
Oswald Buddenhagen
d945ef3627 ALSA: emu10k1: de-duplicate audigy-mixer.rst vs. sb-live-mixer.rst
Let the MANUALS/PATENTS section of the former simply refer to the latter
- there is no point in duplicating this information with little value to
end users.

Signed-off-by: Oswald Buddenhagen <oswald.buddenhagen@gmx.de>
Link: https://lore.kernel.org/r/20230825222157.170978-1-oswald.buddenhagen@gmx.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-08-26 09:24:59 +02:00
Takashi Iwai
4aa69d64e4 ALSA: ump: Fix -Wformat-truncation warnings
Filling the rawmidi name and substream name can be truncated, and this
leads to spurious compiler warnings due to -Wformat-truncation.
Although the truncation is the expected behavior, it'd be better to
truncate the string within "(...)"

This patch puts the precision specifies to each %s for fitting the
words within the size-limited strings.

Fixes: 5f11dd938f ("ALSA: usb-audio: Attach legacy rawmidi after probing all UMP EPs")
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202308251844.1FuQYsql-lkp@intel.com/
Link: https://lore.kernel.org/r/20230826072151.23408-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-08-26 09:22:18 +02:00
Jakub Kicinski
b32add2d20 Merge branch '1GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue
Tony Nguyen says:

====================
Intel Wired LAN Driver Updates 2023-08-24 (igc, e1000e)

This series contains updates to igc and e1000e drivers.

Vinicius adds support for utilizing multiple PTP registers on igc.

Sasha reduces interval time for PTM on igc and adds new device support
on e1000e.

* '1GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue:
  e1000e: Add support for the next LOM generation
  igc: Decrease PTM short interval from 10 us to 1 us
  igc: Add support for multiple in-flight TX timestamps
====================

Link: https://lore.kernel.org/r/20230824204418.1551093-1-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-08-25 19:09:46 -07:00
Jakub Kicinski
5c905279a1 Merge branch 'pds_core-error-handling-fixes'
Shannon Nelson says:

====================
pds_core: error handling fixes

Some fixes for better handling of broken states.
====================

Link: https://lore.kernel.org/r/20230824161754.34264-1-shannon.nelson@amd.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-08-25 19:06:00 -07:00
Shannon Nelson
0ea064e74b pds_core: pass opcode to devcmd_wait
Don't rely on the PCI memory for the devcmd opcode because we
read a 0xff value if the PCI bus is broken, which can cause us
to report a bogus dev_cmd opcode later.

Fixes: 523847df1b ("pds_core: add devcmd device interfaces")
Signed-off-by: Shannon Nelson <shannon.nelson@amd.com>
Reviewed-by: Brett Creeley <brett.creeley@amd.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://lore.kernel.org/r/20230824161754.34264-6-shannon.nelson@amd.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-08-25 19:05:58 -07:00
Shannon Nelson
969cfd4c8c pds_core: check for work queue before use
Add a check that the wq exists before queuing up work for a
failed devcmd, as the PF is responsible for health and the VF
doesn't have a wq.

Fixes: c2dbb09043 ("pds_core: health timer and workqueue")
Signed-off-by: Shannon Nelson <shannon.nelson@amd.com>
Reviewed-by: Brett Creeley <brett.creeley@amd.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://lore.kernel.org/r/20230824161754.34264-5-shannon.nelson@amd.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-08-25 19:05:58 -07:00
Shannon Nelson
95e383226d pds_core: no reset command for VF
The VF doesn't need to send a reset command, and in a PCI reset
scenario it might not have a valid IO space to write to anyway.

Fixes: 523847df1b ("pds_core: add devcmd device interfaces")
Signed-off-by: Shannon Nelson <shannon.nelson@amd.com>
Reviewed-by: Brett Creeley <brett.creeley@amd.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://lore.kernel.org/r/20230824161754.34264-4-shannon.nelson@amd.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-08-25 19:05:58 -07:00
Shannon Nelson
e48b894a1d pds_core: no health reporter in VF
Make sure the health reporter is set up before we use it in
our devlink health updates, especially since the VF doesn't
set up the health reporter.

Fixes: 25b450c05a ("pds_core: add devlink health facilities")
Signed-off-by: Shannon Nelson <shannon.nelson@amd.com>
Reviewed-by: Brett Creeley <brett.creeley@amd.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://lore.kernel.org/r/20230824161754.34264-3-shannon.nelson@amd.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-08-25 19:05:58 -07:00
Shannon Nelson
91202ce78f pds_core: protect devlink callbacks from fw_down state
Don't access structs that have been cleared when in the fw_down
state and the various structs have been cleaned and are waiting
to recover.  This caused a panic on rmmod when already in fw_down
and devlink_param_unregister() tried to check the parameters.

Fixes: 40ced89445 ("pds_core: devlink params for enabling VIF support")
Signed-off-by: Shannon Nelson <shannon.nelson@amd.com>
Reviewed-by: Brett Creeley <brett.creeley@amd.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://lore.kernel.org/r/20230824161754.34264-2-shannon.nelson@amd.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-08-25 19:05:58 -07:00