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| * | | MIPS: IRQ: remove orphan allocate_irqno() declarationGaosheng Cui2022-09-241-2/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | All uses of allocate_irqno() have been removed by commit 69a07a41d908 ("MIPS: SGI-IP27: rework HUB interrupts"), so remove the orphan declaration. Signed-off-by: Gaosheng Cui <cuigaosheng1@huawei.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
| * | | MIPS: remove orphan sb1250_time_init() declarationGaosheng Cui2022-09-242-7/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | All uses of sb1250_time_init() have been removed by commit d527eef5b7f1 ("[MIPS] Sibyte: Finish conversion to modern time APIs."), so remove the orphan declaration. The comments about sb1250_time_init() is useless in arch_init_irq(), so remove these comments. Signed-off-by: Gaosheng Cui <cuigaosheng1@huawei.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
| * | | MIPS: Lantiq: switch vmmc to use gpiod APIDmitry Torokhov2022-09-241-9/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This switches vmmc to use gpiod API instead of OF-specific legacy gpio API that we want to stop exporting from gpiolib. Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
| * | | MIPS: lantiq: enable all hardware interrupts on second VPEAleksander Jan Bajkowski2022-09-241-2/+24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch is needed to handle interrupts by the second VPE on the Lantiq ARX100, xRX200, xRX300 and xRX330 SoCs. Switching some ICU interrupts to the second VPE results in a hang. Currently, the vsmp_init_secondary() function is responsible for enabling these interrupts. It only enables Malta-specific interrupts (SW0, SW1, HW4 and HW5). The MIPS core has 8 interrupts defined. On Lantiq SoCs, hardware interrupts are wired to an ICU instance. Each VPE has an independent instance of the ICU. The mapping of the ICU interrupts is shown below: SW0(IP0) - IPI call, SW1(IP1) - IPI resched, HW0(IP2) - ICU 0-31, HW1(IP3) - ICU 32-63, HW2(IP4) - ICU 64-95, HW3(IP5) - ICU 96-127, HW4(IP6) - ICU 128-159, HW5(IP7) - timer. This patch enables all interrupt lines on the second VPE. This problem affects multithreaded SoCs with a custom interrupt controller. SOCs with 1004Kc core and newer use the MIPS GIC. At this point, I am aware that the Realtek RTL839x and RTL930x SoCs may need a similar fix. In the future, this may be replaced with some generic solution. Tested on Lantiq xRX200. Suggested-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Aleksander Jan Bajkowski <olek2@wp.pl> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
| * | | MIPS: BCM47XX: Cast memcmp() of function to (void *)Kees Cook2022-09-191-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Clang is especially sensitive about argument type matching when using __overloaded functions (like memcmp(), etc). Help it see that function pointers are just "void *". Avoids this error: arch/mips/bcm47xx/prom.c:89:8: error: no matching function for call to 'memcmp' if (!memcmp(prom_init, prom_init + mem, 32)) ^~~~~~ include/linux/string.h:156:12: note: candidate function not viable: no known conversion from 'void (void)' to 'const void *' for 1st argument extern int memcmp(const void *,const void *,__kernel_size_t); Cc: Hauke Mehrtens <hauke@hauke-m.de> Cc: "Rafał Miłecki" <zajec5@gmail.com> Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Cc: linux-mips@vger.kernel.org Cc: Nathan Chancellor <nathan@kernel.org> Cc: Nick Desaulniers <ndesaulniers@google.com> Cc: llvm@lists.linux.dev Reported-by: kernel test robot <lkp@intel.com> Link: https://lore.kernel.org/lkml/202209080652.sz2d68e5-lkp@intel.com Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
| * | | mips: ralink: convert to DEFINE_SHOW_ATTRIBUTELiu Shixin2022-09-191-13/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Use DEFINE_SHOW_ATTRIBUTE helper macro to simplify the code. Signed-off-by: Liu Shixin <liushixin2@huawei.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
| * | | mips: kernel: convert to DEFINE_SHOW_ATTRIBUTELiu Shixin2022-09-191-13/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Use DEFINE_SHOW_ATTRIBUTE helper macro to simplify the code. Signed-off-by: Liu Shixin <liushixin2@huawei.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
| * | | mips: cavium: convert to DEFINE_SHOW_ATTRIBUTELiu Shixin2022-09-191-14/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Use DEFINE_SHOW_ATTRIBUTE helper macro to simplify the code. Signed-off-by: Liu Shixin <liushixin2@huawei.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
| * | | MIPS: AR7: remove orphan declarations from arch/mips/include/asm/mach-ar7/ar7.hGaosheng Cui2022-09-191-2/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | All uses of ar7_cpu_clock, ar7_bus_clock and ar7_dsp_clock were removed by commit 780019ddf02f ("MIPS: AR7: Implement clock API"), so remove the orphan declarations, too. Signed-off-by: Gaosheng Cui <cuigaosheng1@huawei.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
| * | | MIPS: remove orphan sni_cpu_time_init() declarationGaosheng Cui2022-09-191-3/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | All uses of sni_cpu_time_init() were removed by commit 4b550488f894 ("[MIPS] Deforest the function pointer jungle in the time code."), so remove the orphan declaration, too. Signed-off-by: Gaosheng Cui <cuigaosheng1@huawei.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
| * | | MIPS: IRQ: remove orphan declarations from arch/mips/include/asm/irq.hGaosheng Cui2022-09-191-2/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | All uses of free_irqno() and alloc_legacy_irqno() were removed by commit 69a07a41d908 ("MIPS: SGI-IP27: rework HUB interrupts"), so remove the orphan declarations, too. Signed-off-by: Gaosheng Cui <cuigaosheng1@huawei.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
| * | | MIPS: Octeon: remove orphan octeon_hal_setup_reserved32() declarationGaosheng Cui2022-09-191-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | All uses of octeon_hal_setup_reserved32() were removed by commit 1ef2887030db ("MIPS: Octeon: Remove vestiges of CONFIG_CAVIUM_RESERVE32_USE_WIRED_TLB"), so remove the orphan declaration, too. Signed-off-by: Gaosheng Cui <cuigaosheng1@huawei.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
| * | | MIPS: Octeon: remove orphan cvmx_fpa_setup_pool() declarationGaosheng Cui2022-09-191-20/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | All uses of cvmx_fpa_setup_pool() were removed by commit a03822ea5df6 ("MIPS: OCTEON: Remove some unused files."), so remove the orphan declaration, too. Signed-off-by: Gaosheng Cui <cuigaosheng1@huawei.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
| * | | MIPS: Octeon: remove orphan octeon_swiotlb declarationGaosheng Cui2022-09-191-2/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | All uses of octeon_swiotlb were removed by commit f39f8d0eb081 ("MIPS/octeon: use swiotlb_init instead of open coding it"), so remove the orphan declaration, too. Signed-off-by: Gaosheng Cui <cuigaosheng1@huawei.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
| * | | MIPS: Loongson2ef: remove orphan sbx00_acpi_init() declarationGaosheng Cui2022-09-191-2/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | All uses of sbx00_acpi_init() in the "pci.c" file were removed by commit 5831fdb099dd ("MIPS: Loongson2ef: clean up loongson64 related code"), so remove the orphan declaration, too. Signed-off-by: Gaosheng Cui <cuigaosheng1@huawei.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
| * | | mips: bmips: bcm63268: add TWD block bindingRafał Miłecki2022-09-191-6/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | TWD is an MFD block that contains timers, watchdog & some clocks / reset controller. Signed-off-by: Rafał Miłecki <rafal@milecki.pl> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
| * | | MIPS: SGI-IP27: Fix platform-device leak in bridge_platform_create()Lin Yujun2022-09-191-20/+50
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In error case in bridge_platform_create after calling platform_device_add()/platform_device_add_data()/ platform_device_add_resources(), release the failed 'pdev' or it will be leak, call platform_device_put() to fix this problem. Besides, 'pdev' is divided into 'pdev_wd' and 'pdev_bd', use platform_device_unregister() to release sgi_w1 resources when xtalk-bridge registration fails. Fixes: 5dc76a96e95a ("MIPS: PCI: use information from 1-wire PROM for IOC3 detection") Signed-off-by: Lin Yujun <linyujun809@huawei.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
| * | | MIPS: SGI-IP30: Fix platform-device leak in bridge_platform_create()Lin Yujun2022-09-191-20/+50
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In error case in bridge_platform_create after calling platform_device_add()/platform_device_add_data()/ platform_device_add_resources(), release the failed 'pdev' or it will be leak, call platform_device_put() to fix this problem. Besides, 'pdev' is divided into 'pdev_wd' and 'pdev_bd', use platform_device_unregister() to release sgi_w1 resources when xtalk-bridge registration fails. Fixes: fd27234f24ae ("MIPS: add support for SGI Octane (IP30)") Signed-off-by: Lin Yujun <linyujun809@huawei.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
| * | | MIPS: dts: lantiq: rename dts files with soc name being the prefixAleksander Jan Bajkowski2022-09-122-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Rename lantiq dts files with soc name being the prefix, so that the board dts file can be located easily by soc name, and we also gain the consistency of naming. This patch is a preparation for the addition of dts for newer SoCs (Lantiq ARX100, VRX200 and xRX330). Signed-off-by: Aleksander Jan Bajkowski <olek2@wp.pl> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
| * | | MIPS: Fix comments typoShaomin Deng2022-09-121-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Remove the repeated word "as" in comments. Signed-off-by: Shaomin Deng <dengshaomin@cdjrlc.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
| * | | MIPS: ath25: clean up non-kernel-doc comment warningRandy Dunlap2022-09-121-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Don't use "/**" kernel-doc notation for comments that are not in kernel-doc format. Eliminates one warning: arch/mips/pci/pci-ar2315.c:6: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst * Both AR2315 and AR2316 chips have PCI interface unit, which supports DMA Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Reported-by: kernel test robot <lkp@intel.com> Cc: Aditya Srivastava <yashsri421@gmail.com> Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Cc: linux-mips@vger.kernel.org Cc: Sergey Ryazanov <ryazanov.s.a@gmail.com> Acked-by: Sergey Ryazanov <ryazanov.s.a@gmail.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
| * | | MIPS: move from strlcpy with unused retval to strscpyWolfram Sang2022-09-123-5/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Follow the advice of the below link and prefer 'strscpy' in this subsystem. Conversion is 1:1 because the return value is not used. Generated by a coccinelle script. Link: https://lore.kernel.org/r/CAHk-=wgfRnXz0W3D37d01q3JFkr_i_uTL=V6A6G1oUZcprmknw@mail.gmail.com/ Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
| * | | MIPS: Fix comment typoJason Wang2022-09-121-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | The double `it' is duplicated in the comment, remove one. Signed-off-by: Jason Wang <wangborong@cdjrlc.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
* | | | MIPS: Loongson32: Fix PHY-mode being left unspecifiedSerge Semin2022-09-191-8/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | commit 0060c8783330 ("net: stmmac: implement support for passive mode converters via dt") has changed the plat->interface field semantics from containing the PHY-mode to specifying the MAC-PCS interface mode. Due to that the loongson32 platform code will leave the phylink interface uninitialized with the PHY-mode intended by the means of the actual platform setup. The commit-author most likely has just missed the arch-specific code to fix. Let's mend the Loongson32 platform code then by assigning the PHY-mode to the phy_interface field of the STMMAC platform data. Fixes: 0060c8783330 ("net: stmmac: implement support for passive mode converters via dt") Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru> Signed-off-by: Keguang Zhang <keguang.zhang@gmail.com> Tested-by: Keguang Zhang <keguang.zhang@gmail.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
* | | | MIPS: lantiq: export clk_get_io() for lantiq_wdt.koRandy Dunlap2022-09-191-0/+1
|/ / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The lantiq WDT driver uses clk_get_io(), which is not exported, so export it to fix a build error: ERROR: modpost: "clk_get_io" [drivers/watchdog/lantiq_wdt.ko] undefined! Fixes: 287e3f3f4e68 ("MIPS: lantiq: implement support for clkdev api") Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Reported-by: kernel test robot <lkp@intel.com> Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Cc: John Crispin <john@phrozen.org> Cc: linux-mips@vger.kernel.org Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
* | | Merge tag 'mips-fixes_6.0_1' of ↵Linus Torvalds2022-09-115-22/+21
|\ \ \ | |_|/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux Pull MIPS fixes from Thomas Bogendoerfer: - fix for loongson32 starup hang - fix for octeon irq setup problem - fix compiler warning for new CONFIG option - switch to SPARSEMEM_EXTREME for all platforms selecting SPARSEMEM * tag 'mips-fixes_6.0_1' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux: mips: Select SPARSEMEM_EXTREME MIPS: OCTEON: irq: Fix octeon_irq_force_ciu_mapping() MIPS: octeon: Get rid of preprocessor directives around RESERVE32 MIPS: loongson32: ls1c: Fix hang during startup
| * | mips: Select SPARSEMEM_EXTREMEAlexander Sverdlin2022-09-091-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit c46173183657 ("MIPS: Add NUMA support for Loongson-3") has increased .bss size of the Octeon kernel from 16k to 16M. Providing the conditions for SPARSEMEM_EXTREME avoids the waste of memory. Thomas has tested the loogsoon64 kernel, where .bss is being reduced by this patch from 16.5M to 515k. Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Alexander Sverdlin <alexander.sverdlin@nokia.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
| * | MIPS: OCTEON: irq: Fix octeon_irq_force_ciu_mapping()Alexander Sverdlin2022-09-071-0/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | For irq_domain_associate() to work the virq descriptor has to be pre-allocated in advance. Otherwise the following happens: WARNING: CPU: 0 PID: 0 at .../kernel/irq/irqdomain.c:527 irq_domain_associate+0x298/0x2e8 error: virq128 is not allocated Modules linked in: CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.19.78-... #1 ... Call Trace: [<ffffffff801344c4>] show_stack+0x9c/0x130 [<ffffffff80769550>] dump_stack+0x90/0xd0 [<ffffffff801576d0>] __warn+0x118/0x130 [<ffffffff80157734>] warn_slowpath_fmt+0x4c/0x70 [<ffffffff801b83c0>] irq_domain_associate+0x298/0x2e8 [<ffffffff80a43bb8>] octeon_irq_init_ciu+0x4c8/0x53c [<ffffffff80a76cbc>] of_irq_init+0x1e0/0x388 [<ffffffff80a452cc>] init_IRQ+0x4c/0xf4 [<ffffffff80a3cc00>] start_kernel+0x404/0x698 Use irq_alloc_desc_at() to avoid the above problem. Signed-off-by: Alexander Sverdlin <alexander.sverdlin@nokia.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
| * | MIPS: octeon: Get rid of preprocessor directives around RESERVE32Alexander Sverdlin2022-09-072-20/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some of them were pointless because CONFIG_CAVIUM_RESERVE32 is now always defined, some were not enough (Yu Zhao reported "Failed to allocate CAVIUM_RESERVE32 memory area" error). Removing the directives allows for compiler coverage of RESERVE32 code and replacing one of [always-true] "ifdef" with a compiler conditional fixes the [cosmetic] error message. Fixes: 3e3114ac460e ("MIPS: Introduce CAVIUM_RESERVE32 Kconfig option") Signed-off-by: Alexander Sverdlin <alexander.sverdlin@nokia.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
| * | MIPS: loongson32: ls1c: Fix hang during startupYang Ling2022-08-291-1/+0
| |/ | | | | | | | | | | | | | | | | | | | | The RTCCTRL reg of LS1C is obselete. Writing this reg will cause system hang. Fixes: 60219c563c9b6 ("MIPS: Add RTC support for Loongson1C board") Signed-off-by: Yang Ling <gnaygnil@gmail.com> Tested-by: Keguang Zhang <keguang.zhang@gmail.com> Acked-by: Keguang Zhang <keguang.zhang@gmail.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
* | KVM: Rename mmu_notifier_* to mmu_invalidate_*Chao Peng2022-08-191-6/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The motivation of this renaming is to make these variables and related helper functions less mmu_notifier bound and can also be used for non mmu_notifier based page invalidation. mmu_invalidate_* was chosen to better describe the purpose of 'invalidating' a page that those variables are used for. - mmu_notifier_seq/range_start/range_end are renamed to mmu_invalidate_seq/range_start/range_end. - mmu_notifier_retry{_hva} helper functions are renamed to mmu_invalidate_retry{_hva}. - mmu_notifier_count is renamed to mmu_invalidate_in_progress to avoid confusion with mn_active_invalidate_count. - While here, also update kvm_inc/dec_notifier_count() to kvm_mmu_invalidate_begin/end() to match the change for mmu_notifier_count. No functional change intended. Signed-off-by: Chao Peng <chao.p.peng@linux.intel.com> Message-Id: <20220816125322.1110439-3-chao.p.peng@linux.intel.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* | KVM: MIPS: remove unnecessary definition of KVM_PRIVATE_MEM_SLOTSPaolo Bonzini2022-08-191-2/+0
|/ | | | | | | KVM_PRIVATE_MEM_SLOTS defaults to zero, so it is not necessary to define it in MIPS's asm/kvm_host.h. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* Merge tag 'tty-6.0-rc1' of ↵Linus Torvalds2022-08-081-10/+7
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty Pull tty / serial driver updates from Greg KH: "Here is the big set of tty and serial driver changes for 6.0-rc1. It was delayed from last week as I wanted to make sure the last commit here got some good testing in linux-next and elsewhere as it seemed to show up only late in testing for some reason. Nothing major here, just lots of cleanups from Jiri and Ilpo to make the tty core cleaner (Jiri) and the rs485 code simpler to use (Ilpo). Also included in here is the obligatory n_gsm updates from Daniel Starke and lots of tiny driver updates and minor fixes and tweaks for other smaller serial drivers. All of these have been in linux-next for a while with no reported problems" * tag 'tty-6.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (186 commits) tty: serial: qcom-geni-serial: Fix %lu -> %u in print statements tty: amiserial: Fix comment typo tty: serial: document uart_get_console() tty: serial: serial_core, reformat kernel-doc for functions Documentation: serial: link uart_ops properly Documentation: serial: move GPIO kernel-doc to the functions Documentation: serial: dedup kernel-doc for uart functions Documentation: serial: move uart_ops documentation to the struct dt-bindings: serial: snps-dw-apb-uart: Document Rockchip RV1126 serial: mvebu-uart: uart2 error bits clearing tty: serial: fsl_lpuart: correct the count of break characters serial: stm32: make info structs static to avoid sparse warnings serial: fsl_lpuart: zero out parity bit in CS7 mode tty: serial: qcom-geni-serial: Fix get_clk_div_rate() which otherwise could return a sub-optimal clock rate. serial: 8250_bcm2835aux: Add missing clk_disable_unprepare() tty: vt: initialize unicode screen buffer serial: remove VR41XX serial driver serial: 8250: lpc18xx: Remove redundant sanity check for RS485 flags serial: 8250_dwlib: remove redundant sanity check for RS485 flags dt_bindings: rs485: Correct delay values ...
| * MIPS: ath79: Remove one of the identical args in early_printkIlpo Järvinen2022-07-081-10/+6
| | | | | | | | | | | | | | | | | | | | prom_putchar_wait() inputs both mask and val but the callers always set them to the same value. Thus pass only val. Suggested-by: Jiri Slaby <jirislaby@kernel.org> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Link: https://lore.kernel.org/r/20220704125151.59231-1-ilpo.jarvinen@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * serial: Consolidate BOTH_EMPTY useIlpo Järvinen2022-06-271-4/+5
| | | | | | | | | | | | | | | | | | | | | | Per file BOTH_EMPTY defines are littering our source code here and there. Define once in serial.h and create helper for the check too. Reviewed-by: Jiri Slaby <jirislaby@kernel.org> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Link: https://lore.kernel.org/r/20220624205424.12686-7-ilpo.jarvinen@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | Merge tag 'mips_6.0' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linuxLinus Torvalds2022-08-0699-4185/+258
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull MIPS updates from Thomas Bogendoerfer: - added support for Netgear WNR3500L v2 - removed support for VR41xx SoC and platforms based on it - cleanups and fixes * tag 'mips_6.0' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux: (25 commits) MIPS: tlbex: Explicitly compare _PAGE_NO_EXEC against 0 Revert "MIPS: octeon: Remove vestiges of CONFIG_CAVIUM_RESERVE32" MIPS: Introduce CAVIUM_RESERVE32 Kconfig option MIPS: msi-octeon: eliminate kernel-doc warnings MIPS: Fix comment typo MIPS: BMIPS: Utilize cfe_die() for invalid DTB MIPS: CFE: Add cfe_die() MIPS: Fixed __debug_virt_addr_valid() MIPS: BCM47XX: Add support for Netgear WNR3500L v2 MIPS: Remove VR41xx support MIPS: dts: align gpio-key node names with dtschema MIPS: dts: correct gpio-keys names and properties MIPS: cpuinfo: Fix a warning for CONFIG_CPUMASK_OFFSTACK MIPS: Make phys_to_virt utilize __va() MIPS: vdso: Utilize __pa() for gic_pfn MIPS: mm: Use the bitmap API to allocate bitmaps MIPS: math-emu: Use the bitmap API to allocate bitmaps MIPS: Loongson64: Fix section mismatch warning mips: cavium-octeon: Fix missing of_node_put() in octeon2_usb_clocks_start MIPS: mscc: ocelot: enable FDMA usage ...
| * | MIPS: tlbex: Explicitly compare _PAGE_NO_EXEC against 0Nathan Chancellor2022-08-041-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When CONFIG_XPA is enabled, Clang warns: arch/mips/mm/tlbex.c:629:24: error: converting the result of '<<' to a boolean; did you mean '(1 << _PAGE_NO_EXEC_SHIFT) != 0'? [-Werror,-Wint-in-bool-context] if (cpu_has_rixi && !!_PAGE_NO_EXEC) { ^ arch/mips/include/asm/pgtable-bits.h:174:28: note: expanded from macro '_PAGE_NO_EXEC' # define _PAGE_NO_EXEC (1 << _PAGE_NO_EXEC_SHIFT) ^ arch/mips/mm/tlbex.c:2568:24: error: converting the result of '<<' to a boolean; did you mean '(1 << _PAGE_NO_EXEC_SHIFT) != 0'? [-Werror,-Wint-in-bool-context] if (!cpu_has_rixi || !_PAGE_NO_EXEC) { ^ arch/mips/include/asm/pgtable-bits.h:174:28: note: expanded from macro '_PAGE_NO_EXEC' # define _PAGE_NO_EXEC (1 << _PAGE_NO_EXEC_SHIFT) ^ 2 errors generated. _PAGE_NO_EXEC can be '0' or '1 << _PAGE_NO_EXEC_SHIFT' depending on the build and runtime configuration, which is what the negation operators are trying to convey. To silence the warning, explicitly compare against 0 so the result of the '<<' operator is not implicitly converted to a boolean. According to its documentation, GCC enables -Wint-in-bool-context with -Wall but this warning is not visible when building the same configuration with GCC. It appears GCC only warns when compiling C++, not C, although the documentation makes no note of this: https://godbolt.org/z/x39q3brxf Reported-by: Sudip Mukherjee (Codethink) <sudipm.mukherjee@gmail.com> Signed-off-by: Nathan Chancellor <nathan@kernel.org> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
| * | Revert "MIPS: octeon: Remove vestiges of CONFIG_CAVIUM_RESERVE32"Alexander Sverdlin2022-07-302-5/+54
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This reverts commit e98b461bb057aaea6fa766260788c08825213837. We actually have been using the CONFIG_CAVIUM_RESERVE32 and previous patch defined it in the corresponding Kconfig. Signed-off-by: Alexander Sverdlin <alexander.sverdlin@nokia.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
| * | MIPS: Introduce CAVIUM_RESERVE32 Kconfig optionAlexander Sverdlin2022-07-301-0/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This options is used to reserve a shared memory region for user processes to use for hardware memory buffers. The actual code to support the option comes in the following patch. Signed-off-by: Corey Minyard <cminyard@mvista.com> Signed-off-by: Alexander Sverdlin <alexander.sverdlin@nokia.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
| * | MIPS: msi-octeon: eliminate kernel-doc warningsRandy Dunlap2022-07-301-7/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Rearrange kernel-doc notation for 2 functions to eliminate kernel-doc warnings. Use Return: notation for the function return value description. Add function short descriptions for both functions. Correct 2 typos. Fixes these kernel-doc warnings: msi-octeon.c:49: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst * Called when a driver request MSI interrupts instead of the msi-octeon.c:49: warning: missing initial short description on line: * Called when a driver request MSI interrupts instead of the msi-octeon.c:62: warning: No description found for return value of 'arch_setup_msi_irq' msi-octeon.c:189: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst * Called when a device no longer needs its MSI interrupts. All msi-octeon.c:189: warning: missing initial short description on line: * Called when a device no longer needs its MSI interrupts. All Fixes: e8635b484f64 ("MIPS: Add Cavium OCTEON PCI support.") Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Cc: Aditya Srivastava <yashsri421@gmail.com> Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Cc: linux-mips@vger.kernel.org Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
| * | MIPS: Fix comment typoJason Wang2022-07-301-1/+1
| | | | | | | | | | | | | | | | | | | | | Fix the typo `s/that that/than that/' in line 72. Signed-off-by: Jason Wang <wangborong@cdjrlc.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
| * | MIPS: BMIPS: Utilize cfe_die() for invalid DTBFlorian Fainelli2022-07-172-1/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If we were not specified a correct DTB, we will not be able to print anything useful with panic() which requires a working console of some sort. Utilize cfe_die() to callback into the CFE default UART and print some useful diagnostics. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
| * | MIPS: CFE: Add cfe_die()Florian Fainelli2022-07-172-1/+69
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add a cfe_die() implementation which is useful when the kernel does an early panic and no console is registered. This allows us to print useful diagnostics such as an invalid DTB having been configured/selected. Since the BMIPS_GENERIC kernel can be built with support for multiple processors, we need to do a runtime determination of the type of CPU that we are executing on to perform the appropriate XKS01 disabling. Since cfe_init() + cfe_die() could be conceivably called at very early stages of the kernel boot, before cpu_probe(), we do not rely on the structure(s) populated by cpu_probe(). Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
| * | MIPS: Fixed __debug_virt_addr_valid()Florian Fainelli2022-07-151-10/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It is permissible for kernel code to call virt_to_phys() against virtual addresses that are in KSEG0 or KSEG1 and we need to be dealing with both types. Rewrite the test condition to ensure that the kernel virtual addresses are above PAGE_OFFSET which they must be, and below KSEG2 where the non-linear mapping starts. For EVA, there is not much that we can do given the linear address range that is offered, so just return any virtual address as being valid. Finally, when HIGHMEM is not enabled, all virtual addresses are assumed to be valid as well. Fixes: dfad83cb7193 ("MIPS: Add support for CONFIG_DEBUG_VIRTUAL") Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Reviewed-by: Serge Semin <fancer.lancer@gmail.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
| * | MIPS: BCM47XX: Add support for Netgear WNR3500L v2Florian Fainelli2022-07-155-0/+25
| | | | | | | | | | | | | | | | | | | | | | | | Add support for the Netgear WNR3500L v2 router based on the BCM47186 chipset and supporting 802.11n Wi-Fi. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
| * | MIPS: Remove VR41xx supportThomas Bogendoerfer2022-07-1458-4068/+1
| | | | | | | | | | | | | | | | | | No (active) developer owns this hardware, so let's remove Linux support. Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
| * | MIPS: dts: align gpio-key node names with dtschemaKrzysztof Kozlowski2022-07-144-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | The node names should be generic and DT schema expects certain pattern (e.g. with key/button/switch). Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Acked-by: Arınç ÜNAL <arinc.unal@arinc9.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
| * | MIPS: dts: correct gpio-keys names and propertiesKrzysztof Kozlowski2022-07-1410-57/+37
| | | | | | | | | | | | | | | | | | | | | | | | gpio-keys children do not use unit addresses. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Acked-by: Arınç ÜNAL <arinc.unal@arinc9.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
| * | MIPS: cpuinfo: Fix a warning for CONFIG_CPUMASK_OFFSTACKHuacai Chen2022-07-141-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When CONFIG_CPUMASK_OFFSTACK and CONFIG_DEBUG_PER_CPU_MAPS is selected, cpu_max_bits_warn() generates a runtime warning similar as below while we show /proc/cpuinfo. Fix this by using nr_cpu_ids (the runtime limit) instead of NR_CPUS to iterate CPUs. [ 3.052463] ------------[ cut here ]------------ [ 3.059679] WARNING: CPU: 3 PID: 1 at include/linux/cpumask.h:108 show_cpuinfo+0x5e8/0x5f0 [ 3.070072] Modules linked in: efivarfs autofs4 [ 3.076257] CPU: 0 PID: 1 Comm: systemd Not tainted 5.19-rc5+ #1052 [ 3.084034] Hardware name: Loongson Loongson-3A4000-7A1000-1w-V0.1-CRB/Loongson-LS3A4000-7A1000-1w-EVB-V1.21, BIOS Loongson-UDK2018-V2.0.04082-beta7 04/27 [ 3.099465] Stack : 9000000100157b08 9000000000f18530 9000000000cf846c 9000000100154000 [ 3.109127] 9000000100157a50 0000000000000000 9000000100157a58 9000000000ef7430 [ 3.118774] 90000001001578e8 0000000000000040 0000000000000020 ffffffffffffffff [ 3.128412] 0000000000aaaaaa 1ab25f00eec96a37 900000010021de80 900000000101c890 [ 3.138056] 0000000000000000 0000000000000000 0000000000000000 0000000000aaaaaa [ 3.147711] ffff8000339dc220 0000000000000001 0000000006ab4000 0000000000000000 [ 3.157364] 900000000101c998 0000000000000004 9000000000ef7430 0000000000000000 [ 3.167012] 0000000000000009 000000000000006c 0000000000000000 0000000000000000 [ 3.176641] 9000000000d3de08 9000000001639390 90000000002086d8 00007ffff0080286 [ 3.186260] 00000000000000b0 0000000000000004 0000000000000000 0000000000071c1c [ 3.195868] ... [ 3.199917] Call Trace: [ 3.203941] [<98000000002086d8>] show_stack+0x38/0x14c [ 3.210666] [<9800000000cf846c>] dump_stack_lvl+0x60/0x88 [ 3.217625] [<980000000023d268>] __warn+0xd0/0x100 [ 3.223958] [<9800000000cf3c90>] warn_slowpath_fmt+0x7c/0xcc [ 3.231150] [<9800000000210220>] show_cpuinfo+0x5e8/0x5f0 [ 3.238080] [<98000000004f578c>] seq_read_iter+0x354/0x4b4 [ 3.245098] [<98000000004c2e90>] new_sync_read+0x17c/0x1c4 [ 3.252114] [<98000000004c5174>] vfs_read+0x138/0x1d0 [ 3.258694] [<98000000004c55f8>] ksys_read+0x70/0x100 [ 3.265265] [<9800000000cfde9c>] do_syscall+0x7c/0x94 [ 3.271820] [<9800000000202fe4>] handle_syscall+0xc4/0x160 [ 3.281824] ---[ end trace 8b484262b4b8c24c ]--- Cc: stable@vger.kernel.org Signed-off-by: Huacai Chen <chenhuacai@loongson.cn> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
| * | MIPS: Make phys_to_virt utilize __va()Florian Fainelli2022-07-111-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | The implementation is exactly the same, so avoid open-coding it in two different locations. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Reviewed-by: Serge Semin <fancer.lancer@gmail.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
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