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2023-02-23drm/amdgpu: add umc retire unit elementTao Zhou
It records how many bad pages are retired in one uncorrectable error. Signed-off-by: Tao Zhou <tao.zhou1@amd.com> Reviewed-by: Stanley.Yang <Stanley.Yang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-02-23drm/amd/pm: no pptable resetup on runpm exitingEvan Quan
It is assumed the pptable used before runpm is same as the one used afterwards. Thus, we can reuse the stored copy and do not need to resetup the pptable again. Signed-off-by: Evan Quan <evan.quan@amd.com> Reviewed-by: Feifei Xu <feifei.xu@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-02-23drm/amd/pm: correct the baco state setting for ArmD3 scenarioEvan Quan
The check for baco support relies on the correct baco state. Signed-off-by: Evan Quan <evan.quan@amd.com> Reviewed-by: Feifei Xu <feifei.xu@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-02-23drm/amdgpu: add more fields into device info, caches sizes, etc.Marek Olšák
AMDGPU_IDS_FLAGS_CONFORMANT_TRUNC_COORD: important for conformance on gfx11 Other fields are exposed from IP discovery. enabled_rb_pipes_mask_hi is added for future chips, currently 0. Mesa MR: https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/21403 Signed-off-by: Marek Olšák <marek.olsak@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-02-23drm/amdkfd: Fix an illegal memory accessQu Huang
In the kfd_wait_on_events() function, the kfd_event_waiter structure is allocated by alloc_event_waiters(), but the event field of the waiter structure is not initialized; When copy_from_user() fails in the kfd_wait_on_events() function, it will enter exception handling to release the previously allocated memory of the waiter structure; Due to the event field of the waiters structure being accessed in the free_waiters() function, this results in illegal memory access and system crash, here is the crash log: localhost kernel: RIP: 0010:native_queued_spin_lock_slowpath+0x185/0x1e0 localhost kernel: RSP: 0018:ffffaa53c362bd60 EFLAGS: 00010082 localhost kernel: RAX: ff3d3d6bff4007cb RBX: 0000000000000282 RCX: 00000000002c0000 localhost kernel: RDX: ffff9e855eeacb80 RSI: 000000000000279c RDI: ffffe7088f6a21d0 localhost kernel: RBP: ffffe7088f6a21d0 R08: 00000000002c0000 R09: ffffaa53c362be64 localhost kernel: R10: ffffaa53c362bbd8 R11: 0000000000000001 R12: 0000000000000002 localhost kernel: R13: ffff9e7ead15d600 R14: 0000000000000000 R15: ffff9e7ead15d698 localhost kernel: FS: 0000152a3d111700(0000) GS:ffff9e855ee80000(0000) knlGS:0000000000000000 localhost kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 localhost kernel: CR2: 0000152938000010 CR3: 000000044d7a4000 CR4: 00000000003506e0 localhost kernel: Call Trace: localhost kernel: _raw_spin_lock_irqsave+0x30/0x40 localhost kernel: remove_wait_queue+0x12/0x50 localhost kernel: kfd_wait_on_events+0x1b6/0x490 [hydcu] localhost kernel: ? ftrace_graph_caller+0xa0/0xa0 localhost kernel: kfd_ioctl+0x38c/0x4a0 [hydcu] localhost kernel: ? kfd_ioctl_set_trap_handler+0x70/0x70 [hydcu] localhost kernel: ? kfd_ioctl_create_queue+0x5a0/0x5a0 [hydcu] localhost kernel: ? ftrace_graph_caller+0xa0/0xa0 localhost kernel: __x64_sys_ioctl+0x8e/0xd0 localhost kernel: ? syscall_trace_enter.isra.18+0x143/0x1b0 localhost kernel: do_syscall_64+0x33/0x80 localhost kernel: entry_SYSCALL_64_after_hwframe+0x44/0xa9 localhost kernel: RIP: 0033:0x152a4dff68d7 Allocate the structure with kcalloc, and remove redundant 0-initialization and a redundant loop condition check. Signed-off-by: Qu Huang <qu.huang@linux.dev> Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com> Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-02-23drm/amdgpu/vcn: set and use harvest configJane Jian
in early init to set harvest config if the vcn0/1 is disabled rather than hard-code the ring attributes as before did Signed-off-by: Jane Jian <Jane.Jian@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-02-23drm/amd: Don't allow s0ix on APUs older than RavenMario Limonciello
APUs before Raven didn't support s0ix. As we just relieved some of the safety checks for s0ix to improve power consumption on APUs that support it but that are missing BIOS support a new blind spot was introduced that a user could "try" to run s0ix. Plug this hole so that if users try to run s0ix on anything older than Raven it will just skip suspend of the GPU. Fixes: cf488dcd0ab7 ("drm/amd: Allow s0ix without BIOS support") Suggested-by: Alexander Deucher <Alexander.Deucher@amd.com> Signed-off-by: Mario Limonciello <mario.limonciello@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-02-23drm/amdgpu: fix incorrect active rb bitmap for gfx11Hawking Zhang
GFX v11 changes RB_BACKEND_DISABLE related registers from per SA to global ones. The approach to query active rb bitmap needs to be changed accordingly. Query per SE setting returns wrong active RB bitmap especially in the case when some of SA are disabled. With the new approach, driver will generate the active rb bitmap based on active SA bitmap and global active RB bitmap. Signed-off-by: Hawking Zhang <Hawking.Zhang@amd.com> Reviewed-by: Likun Gao <Likun.Gao@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-02-23drm/amdgpu: optimize VRAM allocation when using drm buddyShane Xiao
Since the VRAM manager changed from drm mm to drm buddy. It's not necessary to allocate 2MB aligned VRAM for more than 2MB unaligned size, and then do trim. This method improves the allocation efficiency and reduces memory fragmentation. v2: Correct the remainder operation Signed-off-by: Shane Xiao <shane.xiao@amd.com> Reviewed-by: Arunpravin Paneer Selvam <Arunpravin.PaneerSelvam@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-02-23drm/amdgpu: remove TOPDOWN flags when allocating VRAM in large bar systemShane Xiao
Since VRAM manager is changed from drm mm to drm buddy, the TOP_DOWN flag should not be set by default in the large bar system. Removing this flag helps improve drm buddy allocator efficiency and reduce the risk of splitting higher order block into lower order. Signed-off-by: Shane Xiao <shane.xiao@amd.com> Reviewed-by: Christian K�nig <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-02-23drm/amdgpu: Select DRM_DISPLAY_HDCP_HELPER in amdgpuHarry Wentland
Keeps this selection with the rest of the DRM HELPER selection. Signed-off-by: Harry Wentland <harry.wentland@amd.com> Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-02-23drm/amd/display: only warn once in dce110_edp_wait_for_hpd_ready()Hamza Mahfooz
Since, hot plugging eDP displays isn't supported, it is sufficient for us to warn about the lack of a connected display once. So, use ASSERT() in dce110_edp_wait_for_hpd_ready() instead of DC_LOG_WARNING(). Reviewed-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Hamza Mahfooz <hamza.mahfooz@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-02-23drm/amd/pm: re-enable ac/dc on smu_v13_0_0/10Kenneth Feng
re-enable ac/dc on smu_v13_0_0/10 Signed-off-by: Kenneth Feng <kenneth.feng@amd.com> Reviewed-by: Yang Wang <kevinyang.wang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-02-23drm/amdgpu: add tmz support for GC 10.3.6Jesse Zhang
this patch to add tmz support for GC 10.3.6 Signed-off-by: Jesse Zhang <Jesse.Zhang@amd.com> Reviewed-by: Yifan Zhang <yifan1.zhang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-02-23drm/amdkfd: To fix sdma page fault issue for GC 11Ruili Ji
For the MQD memory, KMD would always allocate 4K memory, and mes scheduler would write to the end of MQD for unmap flag. Signed-off-by: Ruili Ji <ruiliji2@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-02-23Merge tag 'bootconfig-v6.3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace Pull bootconfig updates from Masami Hiramatsu: - Fix ftrace2bconf.sh tool for checking event enable status correctly - Add CONFIG_BOOT_CONFIG_FORCE to apply bootconfig without 'bootconfig' boot parameter - Enable CONFIG_BOOT_CONFIG_FORCE by default if a bootconfig is embedded in the kernel - Increase max number of nodes of bootconfig to 8192 * tag 'bootconfig-v6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace: bootconfig: Increase max nodes of bootconfig from 1024 to 8192 for DCC support bootconfig: Default BOOT_CONFIG_FORCE to y if BOOT_CONFIG_EMBED Allow forcing unconditional bootconfig processing tools/bootconfig: fix single & used for logical condition
2023-02-23Merge tag 'sysctl-6.3-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux Pull sysctl update from Luis Chamberlain: "Just one fix which just came in. Sadly the eager beavers willing to help with the sysctl moves have slowed" * tag 'sysctl-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux: sysctl: fix proc_dobool() usability
2023-02-23Merge tag 'modules-6.3-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux Pull modules updates from Luis Chamberlain: "Nothing exciting at all for modules for v6.3. The biggest change is just the change of INSTALL_MOD_DIR from "extra" to "updates" which I found lingered for ages for no good reason while testing the CXL mock driver [0]. The CXL mock driver has no kconfig integration and requires building an external module... and re-building the *rest* of the production drivers. This mock driver when loaded but not the production ones will crash. All this can obviously be fixed by integrating kconfig semantics into such test module, however that's not desirable by the maintainer, and so sensible defaults must be used to ensure a default "make modules_install" will suffice for most distros which do not have a file like /etc/depmod.d/dist.conf with something like `search updates extra built-in`. Since most distros rely on kmod and since its inception the "updates" directory is always in the search path it makes more sense to use that than the "extra" which only *some* RH based systems rely on. All this stuff has been on linux-next for a while" [0] https://lkml.kernel.org/r/20221209062919.1096779-1-mcgrof@kernel.org * tag 'modules-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux: Documentation: livepatch: module-elf-format: Remove local klp_modinfo definition module.h: Document klp_modinfo struct using kdoc module: Use kstrtobool() instead of strtobool() kernel/params.c: Use kstrtobool() instead of strtobool() test_kmod: stop kernel-doc warnings kbuild: Modify default INSTALL_MOD_DIR from extra to updates
2023-02-23Merge tag 'livepatching-for-6.3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/livepatching/livepatching Pull livepatching updates from Petr Mladek: - Allow reloading a livepatched module by clearing livepatch-specific relocations in the livepatch module. Otherwise, the repeated load would fail on consistency checks. * tag 'livepatching-for-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/livepatching/livepatching: livepatch,x86: Clear relocation targets on a module removal x86/module: remove unused code in __apply_relocate_add
2023-02-23Merge tag 'printk-for-6.3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux Pull printk updates from Petr Mladek: - Refactor printk code for formatting messages that are shown on consoles. This is a preparatory step for introducing atomic consoles which could not share the global buffers - Prevent memory leak when removing printk index in debugfs - Dump also the newest printk message by the sample gdbmacro - Fix a compiler warning * tag 'printk-for-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux: printf: fix errname.c list kernel/printk/index.c: fix memory leak with using debugfs_lookup() printk: Use scnprintf() to print the message about the dropped messages on a console printk: adjust string limit macros printk: use printk_buffers for devkmsg printk: introduce console_prepend_dropped() for dropped messages printk: introduce printk_get_next_message() and printk_message printk: introduce struct printk_buffers console: Document struct console console: Use BIT() macros for @flags values printk: move size limit macros into internal.h docs: gdbmacros: print newest record
2023-02-23Merge tag 'slab-for-6.3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab Pull slab updates from Vlastimil Babka: "This time it's just a bunch of smaller cleanups and fixes for SLAB and SLUB: - Make it possible to use kmem_cache_alloc_bulk() early in boot when interrupts are not yet enabled, as code doing that started to appear via new maple tree users (Thomas Gleixner) - Fix debugfs-related memory leak in SLUB (Greg Kroah-Hartman) - Use the standard idiom to get head page of folio (SeongJae Park) - Simplify and inline is_debug_pagealloc_cache() in SLAB (lvqian) - Remove unused variable in SLAB (Gou Hao)" * tag 'slab-for-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab: mm, slab/slub: Ensure kmem_cache_alloc_bulk() is available early mm/slub: fix memory leak with using debugfs_lookup() mm/slab.c: cleanup is_debug_pagealloc_cache() mm/sl{a,u}b: fix wrong usages of folio_page() for getting head pages mm/slab: remove unused slab_early_init
2023-02-23Merge tag 'probes-v6.3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace Pull kprobes updates from Masami Hiramatsu: - Skip negative return code check for snprintf in eprobe - Add recursive call test cases for kprobe unit test - Add 'char' type to probe events to show it as the character instead of value - Update kselftest kprobe-event testcase to ignore '__pfx_' symbols - Fix kselftest to check filter on eprobe event correctly - Add filter on eprobe to the README file in tracefs - Fix optprobes to check whether there is 'under unoptimizing' optprobe when optimizing another kprobe correctly - Fix optprobe to check whether there is 'under unoptimizing' optprobe when fetching the original instruction correctly - Fix optprobe to free 'forcibly unoptimized' optprobe correctly * tag 'probes-v6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace: tracing/eprobe: no need to check for negative ret value for snprintf test_kprobes: Add recursed kprobe test case tracing/probe: add a char type to show the character value of traced arguments selftests/ftrace: Fix probepoint testcase to ignore __pfx_* symbols selftests/ftrace: Fix eprobe syntax test case to check filter support tracing/eprobe: Fix to add filter on eprobe description in README file x86/kprobes: Fix arch_check_optimized_kprobe check within optimized_kprobe range x86/kprobes: Fix __recover_optprobed_insn check optimizing logic kprobes: Fix to handle forcibly unoptimized kprobes on freeing_list
2023-02-23sctp: add a refcnt in sctp_stream_priorities to avoid a nested loopXin Long
With this refcnt added in sctp_stream_priorities, we don't need to traverse all streams to check if the prio is used by other streams when freeing one stream's prio in sctp_sched_prio_free_sid(). This can avoid a nested loop (up to 65535 * 65535), which may cause a stuck as Ying reported: watchdog: BUG: soft lockup - CPU#23 stuck for 26s! [ksoftirqd/23:136] Call Trace: <TASK> sctp_sched_prio_free_sid+0xab/0x100 [sctp] sctp_stream_free_ext+0x64/0xa0 [sctp] sctp_stream_free+0x31/0x50 [sctp] sctp_association_free+0xa5/0x200 [sctp] Note that it doesn't need to use refcount_t type for this counter, as its accessing is always protected under the sock lock. v1->v2: - add a check in sctp_sched_prio_set to avoid the possible prio_head refcnt overflow. Fixes: 9ed7bfc79542 ("sctp: fix memory leak in sctp_stream_outq_migrate()") Reported-by: Ying Xu <yinxu@redhat.com> Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com> Signed-off-by: Xin Long <lucien.xin@gmail.com> Link: https://lore.kernel.org/r/825eb0c905cb864991eba335f4a2b780e543f06b.1677085641.git.lucien.xin@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-02-23dt-bindings: mailbox: qcom-ipcc: Add compatible for QDU1000/QRU1000Melody Olvera
Document the compatible for the QDU1000 mailbox. Signed-off-by: Melody Olvera <quic_molvera@quicinc.com> Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
2023-02-23mailbox: qcom-apcs-ipc: add IPQ5332 APSS clock supportKathiravan T
IPQ5332 has the APSS clock controller utilizing the same register space as the APCS, so provide access to the APSS utilizing a child device like other IPQ chipsets. Like IPQ6018, the same controller and driver is used, so utilize IPQ6018 match data for IPQ5332. Signed-off-by: Kathiravan T <quic_kathirav@quicinc.com> Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org> Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
2023-02-23dt-bindings: mailbox: qcom: add compatible for the IPQ5332 SoCKathiravan T
Add the mailbox compatible for the IPQ5332 SoC. Since the IPQ5332 mailbox is compatible with the IPQ6018, lets create the fallback to ipq6018 compatible, so that we don't bloat the of_device_id table in the driver. Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by: Kathiravan T <quic_kathirav@quicinc.com> Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
2023-02-23dt-bindings: remoteproc: qcom,glink-rpm-edge: convert to DT schemaKrzysztof Kozlowski
Convert Qualcomm G-Link RPM edge binding to DT schema. Move it to remoteproc as it better suits the purpose - communication channel with remote processor. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
2023-02-23mailbox: qcom-apcs-ipc: enable APCS clock device for MSM8996Dmitry Baryshkov
MSM8996 also has the clock-related part of the APCS mailbox device. Follow the usual pattern and create a child device to handle these clocks. Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
2023-02-23dt-bindings: mailbox: qcom: add #clock-cells to msm8996 exampleDmitry Baryshkov
Add the #clock-cells property to the MSM8996 example, as the APCS block is going to provide the `sys_apcs_aux' clock to the consumers. Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
2023-02-23dt-bindings: mailbox: qcom: add missing platforms to conditional clausesDmitry Baryshkov
Add missing platforms to the conditional clauses selecting whether the clocks/clock-names properties are required or whether they must be omitted. Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
2023-02-23dt-bindings: mailbox: qcom: correct the list of platforms using clocksDmitry Baryshkov
The schema incorrectly lists some of the platforms in the statement requiring clocks/clock-names. Correct this by moving platforms not requiring additional clocks to the separate clause. Fixes: 0d17014e9189 ("dt-bindings: mailbox: Add binding for SDX55 APCS") Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
2023-02-23dt-bindings: mailbox: qcom: enable syscon compatible for msm8976Dmitry Baryshkov
On msm8976 platform APCS also uses syscon compatible, so move it to the block of compatibles using SoC-compat together with syscon. Fixes: 60545466180e ("dt-bindings: mailbox: qcom,apcs-kpss-global: Add syscon const for relevant entries") Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
2023-02-23dt-bindings: mailbox: qcom: add SDX55 compatibleDmitry Baryshkov
The commit 0d17014e9189 ("dt-bindings: mailbox: Add binding for SDX55 APCS") added SDX55 compatible string to one of clock-selection conditions, but failed to add one to the main schema's compatible list. Fix this omission. Fixes: 0d17014e9189 ("dt-bindings: mailbox: Add binding for SDX55 APCS") Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
2023-02-23dt-bindings: mailbox: qcom-ipcc: document the sa8775p platformBartosz Golaszewski
Add a compatible for the ipcc on sa8775p platforms. Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org> Reviewed-by: Manivannan Sadhasivam <mani@kernel.org> Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
2023-02-23dt-bindings: mailbox: sti-mailbox: convert to DT schemaAlain Volmat
Convert the sti-mailbox.txt file into st,sti-mailbox.yaml Signed-off-by: Alain Volmat <avolmat@me.com> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
2023-02-23mailbox: zynq: Switch to flexible array to simplify codeChristophe JAILLET
Using flexible array is more straight forward. It - saves 1 pointer in the 'zynqmp_ipi_pdata' structure - saves an indirection when using this array - saves some LoC and avoids some always spurious pointer arithmetic Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
2023-02-23docs: recommend using Link: whenever using Reported-by:Thorsten Leemhuis
Encourage developers to place Link: tag pointing to the report when they are using Reported-by: tags. Those links are often extremely useful for any code archaeologist that wants to know more about the backstory of a change than the commit message provides. That includes maintainers higher up in the patch-flow hierarchy, which is why Linus asks developers to add such links [1, 2, 3]. To quote [1]: > Again, the commit has a link to the patch *submission*, which is > almost entirely useless. There's no link to the actual problem the > patch fixes. > > [...] > > Put another way: I can see that > > Reported-by: Zhangfei Gao <zhangfei.gao@foxmail.com> > > in the commit, but I don't have a clue what the actual report was, and > there really isn't enough information in the commit itself, except for > a fairly handwavy "Device drivers might, for instance, still need to > flush operations.." > > I don't want to know what device drivers _might_ do. I would want to > have an actual pointer to what they do and where. Another reason why these links are wanted: the ongoing regression tracking efforts can only scale with them, as they allow the regression tracking bot 'regzbot' to automatically connect tracked reports with patches that are posted or committed to fix tracked regressions. Link: https://lore.kernel.org/all/CAHk-=wjMmSZzMJ3Xnskdg4+GGz=5p5p+GSYyFBTh0f-DgvdBWg@mail.gmail.com/ [1] Link: https://lore.kernel.org/all/CAHk-=wgs38ZrfPvy=nOwVkVzjpM3VFU1zobP37Fwd_h9iAD5JQ@mail.gmail.com/ [2] Link: https://lore.kernel.org/all/CAHk-=wjxzafG-=J8oT30s7upn4RhBs6TX-uVFZ5rME+L5_DoJA@mail.gmail.com/ [3] Signed-off-by: Thorsten Leemhuis <linux@leemhuis.info> Link: https://lore.kernel.org/r/9a07ec640d809723492f8ade4f54705914e80419.1676369564.git.linux@leemhuis.info Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2023-02-23Documentation: front page: use recommended heading adornmentsRandy Dunlap
Convert the Documentation front page to use the heading adornments that are documented in doc-guide/sphinx.rst for document title and chapters. I.e., convert most section headings to chapters. This leaves "Indices and tables" as a chapter entry at the same level as the other chapters. The only visual difference from before to after is that the "Indices and tables" heading is smaller and has more vertical whitespace preceding it (although that may depend on the web browser being used). Fixes: 0c7b4366f1ab ("docs: Rewrite the front page") Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Cc: Mauro Carvalho Chehab <mchehab@kernel.org> Link: https://lore.kernel.org/r/20230215005726.27320-1-rdunlap@infradead.org Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2023-02-23docs/sp_SP: Add process programming-language translationCarlos Bilbao
Translate Documentation/process/programming-language.rst into Spanish. Signed-off-by: Carlos Bilbao <carlos.bilbao@amd.com> Link: https://lore.kernel.org/r/20230207220844.2661295-1-carlos.bilbao@amd.com Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2023-02-23docs: locking: refer to the actual existing config namesLukas Bulwahn
The config is actually called CONFIG_RT_MUTEXES, not CONFIG_RT_MUTEX. The config CONFIG_LOCK_TORTURE_TEST should be connected by underscore, for the sake of consistent referencing to configs in the kernel documentation. Address those issues. Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com> Acked-by: Waiman Long <longman@redhat.com> Link: https://lore.kernel.org/r/20230220165749.12850-1-lukas.bulwahn@gmail.com Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2023-02-23powercap: RAPL: Add Power Limit4 support for Meteor Lake SoCSumeet Pawnikar
Add Meteor Lake SoC to the list of processor models for which Power Limit4 is supported by the Intel RAPL driver. Signed-off-by: Sumeet Pawnikar <sumeet.r.pawnikar@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2023-02-23Merge branches 'clk-loongson' and 'clk-qcom' into clk-nextStephen Boyd
* clk-loongson: dt-bindings: clock: add loongson-2 clock dt-bindings: clock: add loongson-2 clock include file * clk-qcom: (143 commits) clk: qcom: apcs-msm8986: Include bitfield.h for FIELD_PREP clk: qcom: Revert sync_state based clk_disable_unused dt-bindings: clock: Merge qcom,gpucc-sm8350 into qcom,gpucc.yaml clk: qcom: gpucc-sdm845: fix clk_dis_wait being programmed for CX GDSC clk: qcom: gpucc-sc7180: fix clk_dis_wait being programmed for CX GDSC dt-bindings: clock: qcom,sa8775p-gcc: add the power-domains property clk: qcom: cpu-8996: add missing cputype include clk: qcom: gcc-sa8775p: remove unused variables clk: qcom: smd-rpm: provide RPM_SMD_XO_CLK_SRC on MSM8996 platform clk: qcom: add msm8996 Core Bus Framework (CBF) support dt-bindings: clock: qcom,msm8996-cbf: Describe the MSM8996 CBF clock controller clk: qcom: add the driver for the MSM8996 APCS clocks clk: qcom: gcc-qcs404: fix duplicate initializer warning clk: qcom: cpu-8996: change setup sequence to follow vendor kernel clk: qcom: cpu-8996: fix PLL clock ops clk: qcom: cpu-8996: fix ACD initialization clk: qcom: cpu-8996: fix PLL configuration sequence clk: qcom: cpu-8996: move qcom_cpu_clk_msm8996_acd_init call clk: qcom: cpu-8996: setup PLLs before registering clocks clk: qcom: cpu-8996: simplify the cpu_clk_notifier_cb ...
2023-02-23Merge branches 'clk-microchip', 'clk-allwinner', 'clk-mediatek', 'clk-imx' ↵Stephen Boyd
and 'clk-core' into clk-next - Various cleanups and improvements to Mediatek clk drivers to reduce code size and modernize the drivers - Support for Mediatek MT7891 SoC clks * clk-microchip: clk: at91: do not compile dt-compat.c for sama7g5 and sam9x60 clk: at91: mark ddr clocks as critical * clk-allwinner: clk: sunxi-ng: d1: Add CAN bus gates and resets dt-bindings: clock: Add D1 CAN bus gates and resets clk: sunxi-ng: d1: Mark cpux clock as critical clk: sunxi-ng: d1: Allow building for R528/T113 clk: sunxi-ng: Move SoC driver conditions to dependencies clk: sunxi-ng: Remove duplicate ARCH_SUNXI dependencies clk: sunxi-ng: Avoid computing the rate twice clk: sunxi-ng: h3/h5: Model H3 CLK_DRAM as a fixed clock clk: sunxi-ng: fix ccu_mmc_timing.c kernel-doc issues * clk-mediatek: (29 commits) clk: mediatek: clk-mtk: Remove unneeded semicolon clk: mediatek: remove MT8195 vppsys/0/1 simple_probe dt-bindings: arm: mediatek: migrate MT8195 vppsys0/1 to mtk-mmsys driver clk: mediatek: add MT7981 clock support dt-bindings: clock: mediatek: add mt7981 clock IDs dt-bindings: clock: Add compatibles for MT7981 clk: mediatek: clk-mt7986-topckgen: Migrate to mtk_clk_simple_probe() clk: mediatek: clk-mt7986-topckgen: Properly keep some clocks enabled clk: mediatek: clk-mt6795-topckgen: Migrate to mtk_clk_simple_probe() clk: mediatek: clk-mt8186-topckgen: Migrate to mtk_clk_simple_probe() clk: mediatek: clk-mt8192: Migrate topckgen to mtk_clk_simple_probe() clk: mediatek: clk-mtk: Register MFG notifier in mtk_clk_simple_probe() clk: mediatek: clk-mt8183: Join top_aud_muxes and top_aud_divs clk: mediatek: mt8186: Join top_adj_div and top_muxes clk: mediatek: mt8192: Join top_adj_divs and top_muxes clk: mediatek: clk-mt8192: Move CLK_TOP_CSW_F26M_D2 in top_divs clk: mediatek: mt8173: Migrate pericfg/topckgen to mtk_clk_simple_probe() clk: mediatek: clk-mtk: Extend mtk_clk_simple_probe() clk: mediatek: Switch to mtk_clk_simple_probe() where possible clk: mediatek: mt8173: Break down clock drivers and allow module build ... * clk-imx: clk: imx: pll14xx: fix recalc_rate for negative kdiv MAINTAINERS: clk: imx: Add Peng Fan as reviewer clk: imx: fix compile testing imxrt1050 clk: imx: set imx_clk_gpr_mux_ops storage-class-specifier to static clk: imx6ul: add ethernet refclock mux support clk: imx6ul: fix enet1 gate configuration clk: imx: add imx_obtain_fixed_of_clock() clk: imx6q: add ethernet refclock mux support clk: imx: add clk-gpr-mux driver dt-bindings: imx8ulp: clock: no spaces before tabs clk: imx6sll: add proper spdx license identifier clk: imx: imx93: invoke imx_register_uart_clocks clk: imx: remove clk_count of imx_register_uart_clocks clk: imx: get stdout clk count from device tree clk: imx: avoid memory leak * clk-core: clk: Honor CLK_OPS_PARENT_ENABLE in clk_core_is_enabled()
2023-02-23Merge branches 'clk-cleanup', 'clk-bindings', 'clk-renesas', 'clk-versa' and ↵Stephen Boyd
'clk-amlogic' into clk-next - Support for Versa 5P49V60 clks * clk-cleanup: clk: rs9: Drop unused pin_xin field clk: sprd: Add dependency for SPRD_UMS512_CLK clk: ralink: fix 'mt7621_gate_is_enabled()' function dt-bindings: clock: remove stih416 bindings drivers/clk: Remove "select SRCU" * clk-bindings: dt-bindings: clock: qcom,sm8450-camcc: constrain required-opps dt-bindings: clock: imx8m-clock: correct i.MX8MQ node name * clk-renesas: clk: renesas: rcar-gen3: Disable R-Car H3 ES1.* clk: renesas: r8a779g0: Add CAN-FD clocks clk: renesas: r8a779g0: Tidy up DMAC name on SYS-DMAC clk: renesas: r8a779a0: Tidy up DMAC name on SYS-DMAC clk: renesas: r8a779g0: Add custom clock for PLL2 clk: renesas: cpg-mssr: Remove superfluous check in resume code clk: renesas: r9a06g032: Handle h2mode setting based on USBF presence clk: renesas: cpg-mssr: Fix use after free if cpg_mssr_common_init() failed clk: renesas: r9a07g044: Add clock and reset entries for CRU clk: renesas: r9a09g011: Add SDHI/eMMC clock and reset entries clk: renesas: r9a09g011: Add USB clock and reset entries clk: renesas: r9a09g011: Add TIM clock and reset entries clk: renesas: r8a779g0: Add display related clocks clk: renesas: rcar-gen4: Restore PLL enum sort order clk: renesas: r8a779g0: Fix OSC predividers clk: renesas: r9a09g011: Add PWM clock and reset entries * clk-versa: dt-bindings: clock: versaclock5: Document 5P49V60 compatible string clk: vc5: Add support for 5P49V60 clk: vc5: Use `clamp()` to restrict PLL range * clk-amlogic: clk: meson: clk-cpu-dyndiv: switch from .round_rate to .determine_rate clk: meson: sclk-div: switch from .round_rate to .determine_rate clk: meson: dualdiv: switch from .round_rate to .determine_rate clk: meson: mpll: Switch from .round_rate to .determine_rate
2023-02-23cpufreq: amd-pstate: remove MODULE_LICENSE in non-modulesNick Alcock
Since commit 8b41fc4454e ("kbuild: create modules.builtin without Makefile.modbuiltin or tristate.conf"), MODULE_LICENSE declarations are used to identify modules. As a consequence, uses of the macro in non-modules will cause modprobe to misidentify their containing object file as a module when it is not (false positives), and modprobe might succeed rather than failing with a suitable error message. So remove it in amd-pstate.c which cannot be built as a module. Signed-off-by: Nick Alcock <nick.alcock@oracle.com> Suggested-by: Luis Chamberlain <mcgrof@kernel.org> [ rjw: Subject and changelog adjustments ] Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2023-02-23cpufreq: schedutil: make kobj_type structure constantThomas Weißschuh
Since commit ee6d3dd4ed48 ("driver core: make kobj_type constant.") the driver core allows the usage of const struct kobj_type. Take advantage of this to constify the structure definition to prevent modification at runtime. Signed-off-by: Thomas Weißschuh <linux@weissschuh.net> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2023-02-23cpufreq: amd-pstate: Let user know amd-pstate is disabledKai-Heng Feng
Commit 202e683df37c ("cpufreq: amd-pstate: add amd-pstate driver parameter for mode selection") changed the driver to be disabled by default, and this can surprise users. Let users know what happened so they can decide what to do next. Link: https://bugs.launchpad.net/bugs/2006942 Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com> Acked-by: Huang Rui <ray.huang@amd.com> Reviewed-by: Yuan Perry <Perry.Yuan@amd.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2023-02-23cpufreq: intel_pstate: Adjust balance_performance EPP for Sapphire RapidsSrinivas Pandruvada
While the majority of server OS distributions are deployed with the "performance" governor as the default, some distributions like Ubuntu use the "powersave" governor by default. While using the "powersave" governor in its default configuration on Sapphire Rapids systems leads to much lower power, the performance is lower by more than 25% for several workloads relative to the "performance" governor. A 37% difference has been reported by www.Phoronix.com [1]. This is a consequence of using a relatively high EPP value in the default configuration of the "powersave" governor and the performance can be made much closer to the "performance" governor's level by adjusting the default EPP value. Based on experiments, with EPP of 0x00, 0x10, 0x20, the performance delta between the "powersave" governor and the "performance" one is around 12%. However, the EPP of 0x20 reduces average power by 18% with respect to the lower EPP values. [Note that raising min_perf_pct in sysfs as high as 50% in addition to adjusting EPP does not improve the performance any further.] For this reason, change the EPP value corresponding to the the default balance_performance setting for Sapphire Rapids to 0x20, which is straightforward, because analogous default EPP adjustment has been applied to Alder Lake and there is a way to set the balance_performance EPP value in intel_pstate based on the processor model already. The goal here is to limit the mean performance delta between the "powersave" governor in the default configuration and the "performance" governor for a wide variety of server workloadsto to around 10-12%. For some bursty workloads, this delta can be still large, as the frequency ramp-up will still lag when the "powersave" governor is in use irrespective of the EPP setting, because the performance governor always requests the maximum possible frequency. Link: https://www.phoronix.com/review/centos-clear-spr/6 # [1] Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> [ rjw: Subject and changelog edits ] Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2023-02-23Merge tag 'perf-tools-for-v6.3-1-2023-02-22' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux Pull perf tools updates from Arnaldo Carvalho de Melo: "Miscellaneous: - Add Ian Rogers to MAINTAINERS as a perf tools reviewer. - Add support for retire latency feature (pipeline stall of a instruction compared to the previous one, in cycles) present on some Intel processors. - Add 'perf c2c' report option to show false sharing with adjacent cachelines, to be used in machines with cacheline prefetching, where accesses to a cacheline brings the next one too. - Skip 'perf test bpf' when the required kernel-debuginfo package isn't installed. - Avoid d3-flame-graph package dependency in 'perf script flamegraph', making this feature more generally available. - Add JSON metric events to present CPI stall cycles in Power10. - Assorted improvements/refactorings on the JSON metrics parsing code. perf lock contention: - Add -o/--lock-owner option: $ sudo ./perf lock contention -abo -- ./perf bench sched pipe # Running 'sched/pipe' benchmark: # Executed 1000000 pipe operations between two processes Total time: 4.766 [sec] 4.766540 usecs/op 209795 ops/sec contended total wait max wait avg wait pid owner 403 565.32 us 26.81 us 1.40 us -1 Unknown 4 27.99 us 8.57 us 7.00 us 1583145 sched-pipe 1 8.25 us 8.25 us 8.25 us 1583144 sched-pipe 1 2.03 us 2.03 us 2.03 us 5068 chrome The owner is unknown in most cases. Filtering only for the mutex locks, it will more likely get the owners. - -S/--callstack-filter is to limit display entries having the given string in the callstack: $ sudo ./perf lock contention -abv -S net sleep 1 ... contended total wait max wait avg wait type caller 5 70.20 us 16.13 us 14.04 us spinlock __dev_queue_xmit+0xb6d 0xffffffffa5dd1c60 _raw_spin_lock+0x30 0xffffffffa5b8f6ed __dev_queue_xmit+0xb6d 0xffffffffa5cd8267 ip6_finish_output2+0x2c7 0xffffffffa5cdac14 ip6_finish_output+0x1d4 0xffffffffa5cdb477 ip6_xmit+0x457 0xffffffffa5d1fd17 inet6_csk_xmit+0xd7 0xffffffffa5c5f4aa __tcp_transmit_skb+0x54a 0xffffffffa5c6467d tcp_keepalive_timer+0x2fd Please note that to have the -b option (BPF) working above one has to build with BUILD_BPF_SKEL=1. - Add more 'perf test' entries to test these new features. perf script: - Add 'cgroup' field for 'perf script' output: $ perf record --all-cgroups -- true $ perf script -F comm,pid,cgroup true 337112 /user.slice/user-657345.slice/user@657345.service/... true 337112 /user.slice/user-657345.slice/user@657345.service/... true 337112 /user.slice/user-657345.slice/user@657345.service/... true 337112 /user.slice/user-657345.slice/user@657345.service/... - Add support for showing branch speculation information in 'perf script' and in the 'perf report' raw dump (-D). perf record: - Fix 'perf record' segfault with --overwrite and --max-size. perf test/bench: - Switch basic BPF filtering test to use syscall tracepoint to avoid the variable number of probes inserted when using the previous probe point (do_epoll_wait) that happens on different CPU architectures. - Fix DWARF unwind test by adding non-inline to expected function in a backtrace. - Use 'grep -c' where the longer form 'grep | wc -l' was being used. - Add getpid and execve benchmarks to 'perf bench syscall'. Intel PT: - Add support for synthesizing "cycle" events from Intel PT traces as we support "instruction" events when Intel PT CYC packets are available. This enables much more accurate profiles than when using the regular 'perf record -e cycles' (the default) when the workload lasts for very short periods (<10ms). - .plt symbol handling improvements, better handling IBT (in the past MPX) done in the context of decoding Intel PT processor traces, IFUNC symbols on x86_64, static executables, understanding .plt.got symbols on x86_64. - Add a 'perf test' to test symbol resolution, part of the .plt improvements series, this tests things like symbol size in contexts where only the symbol start is available (kallsyms), etc. - Better handle auxtrace/Intel PT data when using pipe mode (perf record sleep 1|perf report). - Fix symbol lookup with kcore with multiple segments match stext, getting the symbol resolution to just show DSOs as unknown. ARM: - Timestamp improvements for ARM64 systems with ETMv4 (Embedded Trace Macrocell v4). - Ensure ARM64 CoreSight timestamps don't go backwards. - Document that ARM64 SPE (Statistical Profiling Extension) is used with 'perf c2c/mem'. - Add raw decoding for ARM64 SPEv1.2 previous branch address. - Update neoverse-n2-v2 ARM vendor events (JSON tables): topdown L1, TLB, cache, branch, PE utilization and instruction mix metrics. - Update decoder code for OpenCSD version 1.4, on ARM64 systems. - Fix command line auto-complete of CPU events on aarch64. Build: - Fix 'perf probe' and 'perf test' when libtraceevent isn't linked, as several tests use tracepoints, those should be skipped. - More fallout fixes for the removal of tools/lib/traceevent/. - Fix build error when linking with libpfm" * tag 'perf-tools-for-v6.3-1-2023-02-22' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux: (114 commits) perf tests stat_all_metrics: Change true workload to sleep workload for system wide check perf vendor events power10: Add JSON metric events to present CPI stall cycles in powerpc perf intel-pt: Synthesize cycle events perf c2c: Add report option to show false sharing in adjacent cachelines perf record: Fix segfault with --overwrite and --max-size perf stat: Avoid merging/aggregating metric counts twice perf tools: Fix perf tool build error in util/pfm.c perf tools: Fix auto-complete on aarch64 perf lock contention: Support old rw_semaphore type perf lock contention: Add -o/--lock-owner option perf lock contention: Fix to save callstack for the default modified perf test bpf: Skip test if kernel-debuginfo is not present perf probe: Update the exit error codes in function try_to_find_probe_trace_event perf script: Fix missing Retire Latency fields option documentation perf event x86: Add retire_lat when synthesizing PERF_SAMPLE_WEIGHT_STRUCT perf test x86: Support the retire_lat (Retire Latency) sample_type check perf test bpf: Check for libtraceevent support perf script: Support Retire Latency perf report: Support Retire Latency perf lock contention: Support filters for different aggregation ...
2023-02-23Merge tag 'trace-v6.3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace Pull tracing updates from Steven Rostedt: - Add function names as a way to filter function addresses - Add sample module to test ftrace ops and dynamic trampolines - Allow stack traces to be passed from beginning event to end event for synthetic events. This will allow seeing the stack trace of when a task is scheduled out and recorded when it gets scheduled back in. - Add trace event helper __get_buf() to use as a temporary buffer when printing out trace event output. - Add kernel command line to create trace instances on boot up. - Add enabling of events to instances created at boot up. - Add trace_array_puts() to write into instances. - Allow boot instances to take a snapshot at the end of boot up. - Allow live patch modules to include trace events - Minor fixes and clean ups * tag 'trace-v6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace: (31 commits) tracing: Remove unnecessary NULL assignment tracepoint: Allow livepatch module add trace event tracing: Always use canonical ftrace path tracing/histogram: Fix stacktrace histogram Documententation tracing/histogram: Fix stacktrace key tracing/histogram: Fix a few problems with stacktrace variable printing tracing: Add BUILD_BUG() to make sure stacktrace fits in strings tracing/histogram: Don't use strlen to find length of stacktrace variables tracing: Allow boot instances to have snapshot buffers tracing: Add trace_array_puts() to write into instance tracing: Add enabling of events to boot instances tracing: Add creation of instances at boot command line tracing: Fix trace_event_raw_event_synth() if else statement samples: ftrace: Make some global variables static ftrace: sample: avoid open-coded 64-bit division samples: ftrace: Include the nospec-branch.h only for x86 tracing: Acquire buffer from temparary trace sequence tracing/histogram: Wrap remaining shell snippets in code blocks tracing/osnoise: No need for schedule_hrtimeout range bpf/tracing: Use stage6 of tracing to not duplicate macros ...
generated by cgit (git 2.34.1) at 2025-09-12 16:07:57 +0000