summaryrefslogtreecommitdiffstats
path: root/drivers/irqchip
Commit message (Collapse)AuthorAgeFilesLines
* Merge tag 'irq-core-2022-10-12' of ↵Linus Torvalds2022-10-126-99/+595
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull interrupt updates from Thomas Gleixner: "Core code: - Provide a generic wrapper which can be utilized in drivers to handle the problem of force threaded demultiplex interrupts on RT enabled kernels. This avoids conditionals and horrible quirks in drivers all over the place - Fix up affected pinctrl and GPIO drivers to make them cleanly RT safe Interrupt drivers: - A new driver for the FSL MU platform specific MSI implementation - Make irqchip_init() available for pure ACPI based systems - Provide a functional DT binding for the Realtek RTL interrupt chip - The usual DT updates and small code improvements all over the place" * tag 'irq-core-2022-10-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (21 commits) irqchip: IMX_MU_MSI should depend on ARCH_MXC irqchip/imx-mu-msi: Fix wrong register offset for 8ulp irqchip/ls-extirq: Fix invalid wait context by avoiding to use regmap dt-bindings: irqchip: Describe the IMX MU block as a MSI controller irqchip: Add IMX MU MSI controller driver dt-bindings: irqchip: renesas,irqc: Add r8a779g0 support irqchip/gic-v3: Fix typo in comment dt-bindings: interrupt-controller: ti,sci-intr: Fix missing reg property in the binding dt-bindings: irqchip: ti,sci-inta: Fix warning for missing #interrupt-cells irqchip: Allow extra fields to be passed to IRQCHIP_PLATFORM_DRIVER_END platform-msi: Export symbol platform_msi_create_irq_domain() irqchip/realtek-rtl: use parent interrupts dt-bindings: interrupt-controller: realtek,rtl-intc: require parents irqchip/realtek-rtl: use irq_domain_add_linear() irqchip: Make irqchip_init() usable on pure ACPI systems bcma: gpio: Use generic_handle_irq_safe() gpio: mlxbf2: Use generic_handle_irq_safe() platform/x86: intel_int0002_vgpio: Use generic_handle_irq_safe() ssb: gpio: Use generic_handle_irq_safe() pinctrl: amd: Use generic_handle_irq_safe() ...
| * irqchip: IMX_MU_MSI should depend on ARCH_MXCGeert Uytterhoeven2022-10-121-3/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | The Freescale/NXP i.MX Messaging Unit is only present on Freescale/NXP i.MX SoCs. Hence add a dependency on ARCH_MXC, to prevent asking the user about this driver when configuring a kernel without Freescale/NXP i.MX SoC family support. While at it, expand "MU" to "Messaging Unit" in the help text. Fixes: 70afdab904d2d1e6 ("irqchip: Add IMX MU MSI controller driver") Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/7f3bd932614ddbff46a1b750ef45b231130364ad.1664900434.git.geert+renesas@glider.be
| * irqchip/imx-mu-msi: Fix wrong register offset for 8ulpFrank Li2022-10-041-1/+1
| | | | | | | | | | | | | | | | | | | | | | Offset 0x124 should be for IMX_MU_TSR, not IMX_MU_GSR. Fixes: 70afdab904d2 ("irqchip: Add IMX MU MSI controller driver") Reported-by: Colin King <colin.i.king@gmail.com> Signed-off-by: Frank Li <Frank.Li@nxp.com> [maz: updated commit message, tags] Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20221004202414.216577-1-Frank.Li@nxp.com
| * irqchip/ls-extirq: Fix invalid wait context by avoiding to use regmapVladimir Oltean2022-10-031-24/+63
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The irqchip->irq_set_type method is called by __irq_set_trigger() under the desc->lock raw spinlock. The ls-extirq implementation, ls_extirq_irq_set_type(), uses an MMIO regmap created by of_syscon_register(), which uses plain spinlocks (the kind that are sleepable on RT). Therefore, this is an invalid locking scheme for which we get a kernel splat stating just that ("[ BUG: Invalid wait context ]"), because the context in which the plain spinlock may sleep is atomic due to the raw spinlock. We need to go raw spinlocks all the way. Make this driver ioremap its INTPCR register on its own, and stop relying on syscon to provide a regmap. Fixes: 0dcd9f872769 ("irqchip: Add support for Layerscape external interrupt lines") Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> [maz: trimmed down commit log] Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20220728144254.175385-1-vladimir.oltean@nxp.com
| * Merge branch irq/misc-6.1 into irq/irqchip-nextMarc Zyngier2022-09-292-2/+2
| |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * irq/misc-6.1: : . : Misc irqchip updates for 6.1: : : - Allow generic irqchip support without selecting CONFIG_OF_IRQ : : - Fix a couple of bindings for TI interrupts controllers : : - Yet another binding update for a Renesas SoC : : - The obligatory fixes from the spelling police : . dt-bindings: irqchip: renesas,irqc: Add r8a779g0 support irqchip/gic-v3: Fix typo in comment dt-bindings: interrupt-controller: ti,sci-intr: Fix missing reg property in the binding dt-bindings: irqchip: ti,sci-inta: Fix warning for missing #interrupt-cells irqchip: Make irqchip_init() usable on pure ACPI systems Signed-off-by: Marc Zyngier <maz@kernel.org>
| | * irqchip/gic-v3: Fix typo in commentZhiyuan Dai2022-09-291-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | Fix typo in comment (cleanip/cleanup). Signed-off-by: Zhiyuan Dai <daizhiyuan@phytium.com.cn> [maz: commit message] Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/1664332767-6909-1-git-send-email-daizhiyuan@phytium.com.cn
| | * irqchip: Make irqchip_init() usable on pure ACPI systemsHuacai Chen2022-09-281-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pure ACPI systems (e.g., LoongArch) do not need OF_IRQ, but still require irqchip_init() to perform the ACPI irqchip probing, even when OF_IRQ isn't selected. Relax the dependency to enable the generic irqchip support when ACPI_GENERIC_GSI is configured. Signed-off-by: Huacai Chen <chenhuacai@loongson.cn> Tested-by: Tiezhu Yang <yangtiezhu@loongson.cn> [maz: revamped commit message] Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20220927124557.3246737-1-chenhuacai@loongson.cn
| * | Merge branch irq/rtl-imap-deprecation into irq/irqchip-nextMarc Zyngier2022-09-291-73/+61
| |\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * irq/rtl-imap-deprecation: : . : Deprecate interrupt-map property for realtek-rtl irqchip : : Patches from Sander Vanheule. : . irqchip/realtek-rtl: use parent interrupts dt-bindings: interrupt-controller: realtek,rtl-intc: require parents irqchip/realtek-rtl: use irq_domain_add_linear() Signed-off-by: Marc Zyngier <maz@kernel.org>
| | * | irqchip/realtek-rtl: use parent interruptsSander Vanheule2022-09-281-72/+61
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The interrupt-map property for "realtek,rtl-intc" has been deprecated in favor of a list of parent interrupts. Drop the open-coded parser for interrupt-map, and use the first parent interrupt instead. If no parent was provided, the driver will assume that this is the first hardware interrupt of the SoC's MIPS CPU for compatibility with the legacy binding. All SoC interrupts were treated equally, independent of which output they were actually routed to. This means the driver might as well route all interrupts to the first output, and achieve the same behaviour. Without the interrupt-map property, interrupt usage information is no longer available at initialisation. Routing setup will now happen later, when a hardware interrupt is mapped by the subsystem. Signed-off-by: Sander Vanheule <sander@svanheule.net> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/5f901a82eaa9d97cadf6e9b73a894a92f3f83b7c.1663617425.git.sander@svanheule.net
| | * | irqchip/realtek-rtl: use irq_domain_add_linear()Sander Vanheule2022-09-281-2/+1
| | |/ | | | | | | | | | | | | | | | | | | | | | | | | When using an offset of 0, irq_domain_add_simple() is identical to irq_domain_add_linear() on DT-based systems, so use the latter instead. Signed-off-by: Sander Vanheule <sander@svanheule.net> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/0c4cd9f7661a30a4cb7ab9881c4a94bc8a379162.1663617425.git.sander@svanheule.net
| * / irqchip: Add IMX MU MSI controller driverFrank Li2022-09-293-0/+468
| |/ | | | | | | | | | | | | | | | | | | | | | | | | The MU block found in a number of Freescale/NXP SoCs supports generating IRQs by writing data to a register. This enables the MU block to be used as a MSI controller, by leveraging the platform-MSI API. Signed-off-by: Frank Li <Frank.Li@nxp.com> [maz: dropped pointless dma-iommu.h and of_pci.h includes] Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20220922161246.20586-4-Frank.Li@nxp.com
* | Merge tag 'iommu-updates-v6.1' of ↵Linus Torvalds2022-10-104-4/+4
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu Pull iommu updates from Joerg Roedel: - remove the bus_set_iommu() interface which became unnecesary because of IOMMU per-device probing - make the dma-iommu.h header private - Intel VT-d changes from Lu Baolu: - Decouple PASID and PRI from SVA - Add ESRTPS & ESIRTPS capability check - Cleanups - Apple DART support for the M1 Pro/MAX SOCs - support for AMD IOMMUv2 page-tables for the DMA-API layer. The v2 page-tables are compatible with the x86 CPU page-tables. Using them for DMA-API prepares support for hardware-assisted IOMMU virtualization - support for MT6795 Helio X10 M4Us in the Mediatek IOMMU driver - some smaller fixes and cleanups * tag 'iommu-updates-v6.1' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (59 commits) iommu/vt-d: Avoid unnecessary global DMA cache invalidation iommu/vt-d: Avoid unnecessary global IRTE cache invalidation iommu/vt-d: Rename cap_5lp_support to cap_fl5lp_support iommu/vt-d: Remove pasid_set_eafe() iommu/vt-d: Decouple PASID & PRI enabling from SVA iommu/vt-d: Remove unnecessary SVA data accesses in page fault path dt-bindings: iommu: arm,smmu-v3: Relax order of interrupt names iommu: dart: Support t6000 variant iommu/io-pgtable-dart: Add DART PTE support for t6000 iommu/io-pgtable: Add DART subpage protection support iommu/io-pgtable: Move Apple DART support to its own file iommu/mediatek: Add support for MT6795 Helio X10 M4Us iommu/mediatek: Introduce new flag TF_PORT_TO_ADDR_MT8173 dt-bindings: mediatek: Add bindings for MT6795 M4U iommu/iova: Fix module config properly iommu/amd: Fix sparse warning iommu/amd: Remove outdated comment iommu/amd: Free domain ID after domain_flush_pages iommu/amd: Free domain id in error path iommu/virtio: Fix compile error with viommu_capable() ...
| * | iommu/dma: Move public interfaces to linux/iommu.hRobin Murphy2022-09-074-4/+4
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | The iommu-dma layer is now mostly encapsulated by iommu_dma_ops, with only a couple more public interfaces left pertaining to MSI integration. Since these depend on the main IOMMU API header anyway, move their declarations there, taking the opportunity to update the half-baked comments to proper kerneldoc along the way. Signed-off-by: Robin Murphy <robin.murphy@arm.com> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Acked-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/9cd99738f52094e6bed44bfee03fa4f288d20695.1660668998.git.robin.murphy@arm.com Signed-off-by: Joerg Roedel <jroedel@suse.de>
* | Merge tag 'arm64-upstream' of ↵Linus Torvalds2022-10-061-1/+1
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux Pull arm64 updates from Catalin Marinas: - arm64 perf: DDR PMU driver for Alibaba's T-Head Yitian 710 SoC, SVE vector granule register added to the user regs together with SVE perf extensions documentation. - SVE updates: add HWCAP for SVE EBF16, update the SVE ABI documentation to match the actual kernel behaviour (zeroing the registers on syscall rather than "zeroed or preserved" previously). - More conversions to automatic system registers generation. - vDSO: use self-synchronising virtual counter access in gettimeofday() if the architecture supports it. - arm64 stacktrace cleanups and improvements. - arm64 atomics improvements: always inline assembly, remove LL/SC trampolines. - Improve the reporting of EL1 exceptions: rework BTI and FPAC exception handling, better EL1 undefs reporting. - Cortex-A510 erratum 2658417: remove BF16 support due to incorrect result. - arm64 defconfig updates: build CoreSight as a module, enable options necessary for docker, memory hotplug/hotremove, enable all PMUs provided by Arm. - arm64 ptrace() support for TPIDR2_EL0 (register provided with the SME extensions). - arm64 ftraces updates/fixes: fix module PLTs with mcount, remove unused function. - kselftest updates for arm64: simple HWCAP validation, FP stress test improvements, validation of ZA regs in signal handlers, include larger SVE and SME vector lengths in signal tests, various cleanups. - arm64 alternatives (code patching) improvements to robustness and consistency: replace cpucap static branches with equivalent alternatives, associate callback alternatives with a cpucap. - Miscellaneous updates: optimise kprobe performance of patching single-step slots, simplify uaccess_mask_ptr(), move MTE registers initialisation to C, support huge vmalloc() mappings, run softirqs on the per-CPU IRQ stack, compat (arm32) misalignment fixups for multiword accesses. * tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (126 commits) arm64: alternatives: Use vdso/bits.h instead of linux/bits.h arm64/kprobe: Optimize the performance of patching single-step slot arm64: defconfig: Add Coresight as module kselftest/arm64: Handle EINTR while reading data from children kselftest/arm64: Flag fp-stress as exiting when we begin finishing up kselftest/arm64: Don't repeat termination handler for fp-stress ARM64: reloc_test: add __init/__exit annotations to module init/exit funcs arm64/mm: fold check for KFENCE into can_set_direct_map() arm64: ftrace: fix module PLTs with mcount arm64: module: Remove unused plt_entry_is_initialized() arm64: module: Make plt_equals_entry() static arm64: fix the build with binutils 2.27 kselftest/arm64: Don't enable v8.5 for MTE selftest builds arm64: uaccess: simplify uaccess_mask_ptr() arm64: asm/perf_regs.h: Avoid C++-style comment in UAPI header kselftest/arm64: Fix typo in hwcap check arm64: mte: move register initialization to C arm64: mm: handle ARM64_KERNEL_USES_PMD_MAPS in vmemmap_populate() arm64: dma: Drop cache invalidation from arch_dma_prep_coherent() arm64/sve: Add Perf extensions documentation ...
| * | arm64/sysreg: Add _EL1 into ID_AA64PFR0_EL1 definition namesMark Brown2022-09-091-1/+1
| |/ | | | | | | | | | | | | | | | | | | | | | | Normally we include the full register name in the defines for fields within registers but this has not been followed for ID registers. In preparation for automatic generation of defines add the _EL1s into the defines for ID_AA64PFR0_EL1 to follow the convention. No functional changes. Signed-off-by: Mark Brown <broonie@kernel.org> Reviewed-by: Kristina Martsenko <kristina.martsenko@arm.com> Link: https://lore.kernel.org/r/20220905225425.1871461-7-broonie@kernel.org Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
* | irqchip/loongson-pch-lpc: Add dependence on LoongArchJianmin Lv2022-09-161-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | The loongson-pch-lpc driver may be selected in a random configuration, but it is only supported for LoongArch, So, the dependence on LoongArch is added for it to avoid compile error for a random configuration of other architetures. Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Jianmin Lv <lvjianmin@loongson.cn> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20220916071926.28368-1-lvjianmin@loongson.cn
* | irqchip: Select downstream irqchip drivers for LoongArch CPUHuacai Chen2022-09-121-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | LoongArch irqchips have a fixed hierarchy which currently can't be described by ACPI tables, so upstream irqchip drivers call downstream irqchip drivers' initialization directly. As a result, the top level (CPU-level) irqchip driver should explicitly select downstream drivers to avoid build errors. Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20220808085319.3350111-1-chenhuacai@loongson.cn
* | irqchip/gic-v3-its: Remove cpumask_var_t allocationPierre Gondois2022-09-121-6/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Running a PREEMPT_RT kernel based on v5.19-rc3-rt4 on an Ampere Altra triggers: [ 22.616229] BUG: sleeping function called from invalid context at kernel/locking/spinlock_rt.c:46 [ 22.616239] in_atomic(): 1, irqs_disabled(): 128, non_block: 0, pid: 1884, name: kworker/80:1 [ 22.616243] preempt_count: 3, expected: 0 [ 22.616244] RCU nest depth: 0, expected: 0 [...] [ 22.616250] hardirqs last enabled at (33): _raw_spin_unlock_irq (/home/piegon01/linux/./arch/arm64/include/asm/irqflags.h:35) [ 22.616273] hardirqs last disabled at (34): __schedule (/home/piegon01/linux/kernel/sched/core.c:6432 (discriminator 1)) [ 22.616283] softirqs last enabled at (0): copy_process (/home/piegon01/linux/./include/linux/lockdep.h:191) [ 22.616297] softirqs last disabled at (0): 0x0 [ 22.616305] Preemption disabled at: [ 22.616307] __setup_irq (/home/piegon01/linux/kernel/irq/manage.c:1612) [ 22.616322] CPU: 80 PID: 1884 Comm: kworker/80:1 Tainted: G W [...] [ 22.616328] Hardware name: WIWYNN Mt.Jade Server System B81.03001.0005/Mt.Jade Motherboard, BIOS 1.08.20220218 (SCP: 1.08.20220218) 2022/02/18 [ 22.616333] Workqueue: events work_for_cpu_fn [ 22.616344] Call trace: [...] [ 22.616403] alloc_cpumask_var_node (/home/piegon01/linux/lib/cpumask.c:115) [ 22.616414] alloc_cpumask_var (/home/piegon01/linux/lib/cpumask.c:147) [ 22.616417] its_select_cpu (/home/piegon01/linux/drivers/irqchip/irq-gic-v3-its.c:1580) [ 22.616428] its_set_affinity (/home/piegon01/linux/drivers/irqchip/irq-gic-v3-its.c:1659) [ 22.616431] msi_domain_set_affinity (/home/piegon01/linux/kernel/irq/msi.c:501) [ 22.616440] irq_do_set_affinity (/home/piegon01/linux/kernel/irq/manage.c:276) [ 22.616443] irq_setup_affinity (/home/piegon01/linux/kernel/irq/manage.c:633) [ 22.616447] irq_startup (/home/piegon01/linux/kernel/irq/chip.c:280) [ 22.616453] __setup_irq (/home/piegon01/linux/kernel/irq/manage.c:1777) Follow the pattern established in commit cba4235e6031e ("genirq: Remove mask argument from setup_affinity()") and co to overcome this issue by defining a static struct cpumask and protecting it by a raw spinlock. Since its_select_cpu() can be executed with IRQs enabled or disabled, enforce that the cpumask computation is done with interrupts disabled. Signed-off-by: Pierre Gondois <pierre.gondois@arm.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20220912141857.1391343-1-pierre.gondois@arm.com
* | irqchip/stm32-exti: Remove check on always false conditionAntonio Borneo2022-09-121-1/+1
|/ | | | | | | | | | | | | | | | | | The field drv_data is assigned during driver's probe, where it's already checked to be not NULL. Remove the always false check '!host_data->drv_data'. This fixes a warning "variable dereferenced before check" detected by '0-DAY CI Kernel Test Service'. Fixes: c297493336b7 ("irqchip/stm32-exti: Simplify irq description table") Reported-by: kernel test robot <lkp@intel.com> Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Link: https://lore.kernel.org/lkml/202208131739.gJvcs9ls-lkp@intel.com/ Signed-off-by: Antonio Borneo <antonio.borneo@foss.st.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20220817125758.5975-1-antonio.borneo@foss.st.com
* Merge tag 'irqchip-fixes-6.0-1' of ↵Thomas Gleixner2022-08-185-28/+33
|\ | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms into irq/urgent Pull irqchip fixes from Marc Zyngier: - A bunch of small fixes for the recently merged LoongArch drivers - A leftover from the non-SMP IRQ affinity rework affecting the Hyper-V IOMMU code Link: https://lore.kernel.org/r/20220812125910.2227338-1-maz@kernel.org
| * irqchip/loongson-liointc: Fix an error handling path in liointc_init()Christophe JAILLET2022-08-121-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | All errors lead to the error handling path, except the one dealing with "reg-names" in DT. Fix it and release some resources before returning if this test fails. Fixes: 0858ed035a85 ("irqchip/loongson-liointc: Add ACPI init support") Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> [maz: fix commit message] Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/1a6d74ab70712279023aa7bdbd31bd3aec103bc0.1659382063.git.christophe.jaillet@wanadoo.fr
| * irqchip/loongarch: Fix irq_domain_alloc_fwnode() abuseMarc Zyngier2022-08-095-5/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The recently merged LoongArch drivers paper over the lack of topology information by creating a bunch of fwnodes for the irqchips. So far, so good. However, irq_domain_alloc_fwnode() is supposed to take a PA, and not a kernel VA blindly cast as a PA, potentially disclosing kernel VAs to userspace. In some other cases, even NULL is used as the PA, which is entertaining. Fix this by using the actual PA of the block when available, and switch to a named fwnode in the other cases. Signed-off-by: Marc Zyngier <maz@kernel.org> Reviewed-by: Jianmin Lv <lvjianmin@loongson.cn> Link: https://lore.kernel.org/r/20220808105020.2689757-1-maz@kernel.org
| * irqchip/loongson-pch-pic: Move find_pch_pic() into CONFIG_ACPIHuacai Chen2022-08-081-19/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | MIPS doesn't declare find_pch_pic(), which makes a build warning: >> drivers/irqchip/irq-loongson-pch-pic.c:51:5: warning: no previous prototype for function 'find_pch_pic' [-Wmissing-prototypes] int find_pch_pic(u32 gsi) ^ drivers/irqchip/irq-loongson-pch-pic.c:51:1: note: declare 'static' if the function is not intended to be used outside of this translation unit int find_pch_pic(u32 gsi) ^ static 1 warning generated. Move find_pch_pic() into CONFIG_ACPI which only used by LoongArch to fix the warning. BTW, remove the duplicated declaration of find_pch_pic() in irq.h. Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20220808093205.3658485-1-chenhuacai@loongson.cn
| * irqchip/loongson-eiointc: Fix a build warningHuacai Chen2022-08-041-1/+1
| | | | | | | | | | | | | | | | | | | | Make acpi_get_vec_parent() be a static function, to avoid: drivers/irqchip/irq-loongson-eiointc.c:289:20: warning: no previous prototype for 'acpi_get_vec_parent' Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20220804025457.213979-1-chenhuacai@loongson.cn
| * irqchip/loongson-eiointc: Fix irq affinity settingHuacai Chen2022-08-041-2/+6
| | | | | | | | | | | | | | | | | | In multi-node case, csr_any_send() should set EIOINTC_REG_ENABLE of the first core of target node, not the first core of the whole. Signed-off-by: Huacai Chen <chenhuacai@loongson.cn> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20220804025421.211958-1-chenhuacai@loongson.cn
* | Merge tag 'riscv-for-linus-5.20-mw0' of ↵Linus Torvalds2022-08-062-6/+8
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux Pull RISC-V updates from Palmer Dabbelt: - Enabling the FPU is now a static_key - Improvements to the Svpbmt support - CPU topology bindings for a handful of systems - Support for systems with 64-bit hart IDs - Many settings have been enabled in the defconfig, including both support for the StarFive systems and many of the Docker requirements There are also a handful of cleanups and improvements, as usual. * tag 'riscv-for-linus-5.20-mw0' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: (28 commits) riscv: enable Docker requirements in defconfig riscv: convert the t-head pbmt errata to use the __nops macro riscv: introduce nops and __nops macros for NOP sequences RISC-V: Add fast call path of crash_kexec() riscv: mmap with PROT_WRITE but no PROT_READ is invalid riscv/efi_stub: Add 64bit boot-hartid support on RV64 riscv: cpu: Add 64bit hartid support on RV64 riscv: smp: Add 64bit hartid support on RV64 riscv: spinwait: Fix hartid variable type riscv: cpu_ops_sbi: Add 64bit hartid support on RV64 riscv: dts: sifive: "fix" pmic watchdog node name riscv: dts: canaan: Add k210 topology information riscv: dts: sifive: Add fu740 topology information riscv: dts: sifive: Add fu540 topology information riscv: dts: starfive: Add JH7100 CPU topology RISC-V: Add CONFIG_{NON,}PORTABLE riscv: config: enable SOC_STARFIVE in defconfig riscv: dts: microchip: Add mpfs' topology information riscv: Kconfig.socs: Add comments riscv: Kconfig.erratas: Add comments ...
| * | riscv: cpu: Add 64bit hartid support on RV64Sunil V L2022-07-192-6/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The hartid can be a 64bit value on RV64 platforms. Add support for 64bit hartid in riscv_of_processor_hartid() and update its callers. Signed-off-by: Sunil V L <sunilvl@ventanamicro.com> Reviewed-by: Atish Patra <atishp@rivosinc.com> Link: https://lore.kernel.org/r/20220527051743.2829940-5-sunilvl@ventanamicro.com Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
* | | Merge tag 'asm-generic-6.0' of ↵Linus Torvalds2022-08-051-5/+5
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic Pull asm-generic updates from Arnd Bergmann: "There are three independent sets of changes: - Sai Prakash Ranjan adds tracing support to the asm-generic version of the MMIO accessors, which is intended to help understand problems with device drivers and has been part of Qualcomm's vendor kernels for many years - A patch from Sebastian Siewior to rework the handling of IRQ stacks in softirqs across architectures, which is needed for enabling PREEMPT_RT - The last patch to remove the CONFIG_VIRT_TO_BUS option and some of the code behind that, after the last users of this old interface made it in through the netdev, scsi, media and staging trees" * tag 'asm-generic-6.0' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic: uapi: asm-generic: fcntl: Fix typo 'the the' in comment arch/*/: remove CONFIG_VIRT_TO_BUS soc: qcom: geni: Disable MMIO tracing for GENI SE serial: qcom_geni_serial: Disable MMIO tracing for geni serial asm-generic/io: Add logging support for MMIO accessors KVM: arm64: Add a flag to disable MMIO trace for nVHE KVM lib: Add register read/write tracing support drm/meson: Fix overflow implicit truncation warnings irqchip/tegra: Fix overflow implicit truncation warnings coresight: etm4x: Use asm-generic IO memory barriers arm64: io: Use asm-generic high level MMIO accessors arch/*: Disable softirq stacks on PREEMPT_RT.
| * | | irqchip/tegra: Fix overflow implicit truncation warningsSai Prakash Ranjan2022-06-151-5/+5
| |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix -Woverflow warnings for tegra irqchip driver which is a result of moving arm64 custom MMIO accessor macros to asm-generic function implementations giving a bonus type-checking now and uncovering these overflow warnings. drivers/irqchip/irq-tegra.c: In function ‘tegra_ictlr_suspend’: drivers/irqchip/irq-tegra.c:151:18: warning: large integer implicitly truncated to unsigned type [-Woverflow] writel_relaxed(~0ul, ictlr + ICTLR_COP_IER_CLR); ^ Suggested-by: Marc Zyngier <maz@kernel.org> Signed-off-by: Sai Prakash Ranjan <quic_saipraka@quicinc.com> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Cc: Marc Zyngier <maz@kernel.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
* | | Merge tag 'spdx-6.0-rc1' of ↵Linus Torvalds2022-08-041-9/+1
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx Pull SPDX updates from Greg KH: "Here is the set of SPDX comment updates for 6.0-rc1. Nothing huge here, just a number of updated SPDX license tags and cleanups based on the review of a number of common patterns in GPLv2 boilerplate text. Also included in here are a few other minor updates, two USB files, and one Documentation file update to get the SPDX lines correct. All of these have been in the linux-next tree for a very long time" * tag 'spdx-6.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx: (28 commits) Documentation: samsung-s3c24xx: Add blank line after SPDX directive x86/crypto: Remove stray comment terminator treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_406.RULE treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_398.RULE treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_391.RULE treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_390.RULE treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_385.RULE treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_320.RULE treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_319.RULE treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_318.RULE treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_298.RULE treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_292.RULE treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_179.RULE treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_168.RULE (part 2) treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_168.RULE (part 1) treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_160.RULE treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_152.RULE treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_149.RULE treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_147.RULE treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_133.RULE ...
| * | | treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_30.RULE ↵Thomas Gleixner2022-06-101-9/+1
| |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | (part 2) Based on the normalized pattern: this program is free software you can redistribute it and/or modify it under the terms of the gnu general public license as published by the free software foundation version 2 this program is distributed as is without any warranty of any kind whether express or implied without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference. Reviewed-by: Allison Randal <allison@lohutok.net> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | | Merge tag 'arm-newsoc-6.0' of ↵Linus Torvalds2022-08-023-0/+288
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc Pull ARM new SoC support from Arnd Bergmann: "This adds initial support for two SoC families that have been under review for a while. In both cases, the origonal idea was to have a minimally functional version, but we ended up leaving out the clk drivers that are still under review and will be merged through the corresponding subsystem tree. The Nuvoton NPCM8xx is a 64-bit Baseboard Management Controller and based on the 32-bit NPCM7xx family but is now getting added to arch/arm64 as well. Sunplus SP7021, also known as Plus1, is a general-purpose System-in-Package design based on the 32-bit Cortex-A7 SoC on the main chip, plus an I/O chip and memory in the same" * tag 'arm-newsoc-6.0' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (25 commits) MAINTAINERS: rectify entry for ARM/NUVOTON NPCM ARCHITECTURE arm64: defconfig: Add Nuvoton NPCM family support arm64: dts: nuvoton: Add initial NPCM845 EVB device tree arm64: dts: nuvoton: Add initial NPCM8XX device tree arm64: npcm: Add support for Nuvoton NPCM8XX BMC SoC dt-bindings: arm: npcm: Add nuvoton,npcm845 GCR compatible string dt-bindings: arm: npcm: Add nuvoton,npcm845 compatible string dt-bindings: arm: npcm: Add maintainer reset: npcm: Add NPCM8XX support dt-bindings: reset: npcm: Add support for NPCM8XX reset: npcm: using syscon instead of device data ARM: dts: nuvoton: add reset syscon property dt-bindings: reset: npcm: add GCR syscon property dt-binding: clk: npcm845: Add binding for Nuvoton NPCM8XX Clock dt-bindings: watchdog: npcm: Add npcm845 compatible string dt-bindings: timer: npcm: Add npcm845 compatible string ARM: dts: Add Sunplus SP7021-Demo-V3 board device tree ARM: sp7021_defconfig: Add Sunplus SP7021 defconfig ARM: sunplus: Add initial support for Sunplus SP7021 SoC irqchip: Add Sunplus SP7021 interrupt controller driver ...
| * | | irqchip: Add Sunplus SP7021 interrupt controller driverQin Jian2022-07-083-0/+288
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add interrupt controller driver for Sunplus SP7021 SoC. This is the interrupt controller in P-chip which collects all interrupt sources in P-chip and routes them to parent interrupt controller in C-chip. Signed-off-by: Qin Jian <qinjian@cqplus1.com> Acked-by: Marc Zyngier <maz@kernel.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
* | | | Merge tag 'irq-core-2022-08-01' of ↵Linus Torvalds2022-08-0115-360/+1870
|\ \ \ \ | | |_|/ | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull irq updates from Thomas Gleixner: "Updates for interrupt core and drivers: Core: - Fix a few inconsistencies between UP and SMP vs interrupt affinities - Small updates and cleanups all over the place New drivers: - LoongArch interrupt controller - Renesas RZ/G2L interrupt controller Updates: - Hotpath optimization for SiFive PLIC - Workaround for broken PLIC edge triggered interrupts - Simall cleanups and improvements as usual" * tag 'irq-core-2022-08-01' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (52 commits) irqchip/mmp: Declare init functions in common header file irqchip/mips-gic: Check the return value of ioremap() in gic_of_init() genirq: Use for_each_action_of_desc in actions_show() irqchip / ACPI: Introduce ACPI_IRQ_MODEL_LPIC for LoongArch irqchip: Add LoongArch CPU interrupt controller support irqchip: Add Loongson Extended I/O interrupt controller support irqchip/loongson-liointc: Add ACPI init support irqchip/loongson-pch-msi: Add ACPI init support irqchip/loongson-pch-pic: Add ACPI init support irqchip: Add Loongson PCH LPC controller support LoongArch: Prepare to support multiple pch-pic and pch-msi irqdomain LoongArch: Use ACPI_GENERIC_GSI for gsi handling genirq/generic_chip: Export irq_unmap_generic_chip ACPI: irq: Allow acpi_gsi_to_irq() to have an arch-specific fallback APCI: irq: Add support for multiple GSI domains LoongArch: Provisionally add ACPICA data structures irqdomain: Use hwirq_max instead of revmap_size for NOMAP domains irqdomain: Report irq number for NOMAP domains irqchip/gic-v3: Fix comment typo dt-bindings: interrupt-controller: renesas,rzg2l-irqc: Document RZ/V2L SoC ...
| * | | Merge branch irq/misc-5.20 into irq/irqchip-nextMarc Zyngier2022-07-252-1/+5
| |\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * irq/misc-5.20: : . : Misc IRQ changes for 5.20: : : - Let irq_set_chip_handler_name_locked() take a const struct irq_chip * : : - Convert the ocelot irq_chip to being immutable (depends on the above) : : - Tidy-up the NOMAP irqdomain API variant : : - Teach action_show() to use for_each_action_of_desc() : : - Check ioremap() return value in the MIPS GIC driver : : - Move MMP driver init function declarations into the common .h : : - The obligatory typo fixes : . irqchip/mmp: Declare init functions in common header file irqchip/mips-gic: Check the return value of ioremap() in gic_of_init() genirq: Use for_each_action_of_desc in actions_show() irqdomain: Use hwirq_max instead of revmap_size for NOMAP domains irqdomain: Report irq number for NOMAP domains irqchip/gic-v3: Fix comment typo pinctrl: ocelot: Make irq_chip immutable genirq: Allow irq_set_chip_handler_name_locked() to take a const irq_chip Signed-off-by: Marc Zyngier <maz@kernel.org>
| | * | | irqchip/mips-gic: Check the return value of ioremap() in gic_of_init()William Dean2022-07-241-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The function ioremap() in gic_of_init() can fail, so its return value should be checked. Reported-by: Hacash Robot <hacashRobot@santino.com> Signed-off-by: William Dean <williamsukatube@163.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20220723100128.2964304-1-williamsukatube@163.com
| | * | | irqchip/gic-v3: Fix comment typoJason Wang2022-07-191-1/+1
| | |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | The double `the' is duplicated in line 1786, remove one. Signed-off-by: Jason Wang <wangborong@cdjrlc.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20220715051258.28889-1-wangborong@cdjrlc.com
| * | | Merge branch irq/loongarch into irq/irqchip-nextMarc Zyngier2022-07-2010-162/+1164
| |\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * irq/loongarch: : . : Merge the long awaited IRQ support for the LoongArch architecture. : : From the cover letter: : : "Currently, LoongArch based processors (e.g. Loongson-3A5000) : can only work together with LS7A chipsets. The irq chips in : LoongArch computers include CPUINTC (CPU Core Interrupt : Controller), LIOINTC (Legacy I/O Interrupt Controller), : EIOINTC (Extended I/O Interrupt Controller), PCH-PIC (Main : Interrupt Controller in LS7A chipset), PCH-LPC (LPC Interrupt : Controller in LS7A chipset) and PCH-MSI (MSI Interrupt Controller)." : : Note that this comes with non-official, arch private ACPICA : definitions until the official ACPICA update is realeased. : . irqchip / ACPI: Introduce ACPI_IRQ_MODEL_LPIC for LoongArch irqchip: Add LoongArch CPU interrupt controller support irqchip: Add Loongson Extended I/O interrupt controller support irqchip/loongson-liointc: Add ACPI init support irqchip/loongson-pch-msi: Add ACPI init support irqchip/loongson-pch-pic: Add ACPI init support irqchip: Add Loongson PCH LPC controller support LoongArch: Prepare to support multiple pch-pic and pch-msi irqdomain LoongArch: Use ACPI_GENERIC_GSI for gsi handling genirq/generic_chip: Export irq_unmap_generic_chip ACPI: irq: Allow acpi_gsi_to_irq() to have an arch-specific fallback APCI: irq: Add support for multiple GSI domains LoongArch: Provisionally add ACPICA data structures Signed-off-by: Marc Zyngier <maz@kernel.org>
| | * | | irqchip / ACPI: Introduce ACPI_IRQ_MODEL_LPIC for LoongArchJianmin Lv2022-07-201-0/+37
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | For LoongArch, ACPI_IRQ_MODEL_LPIC is introduced, and then the callback acpi_get_gsi_domain_id and acpi_gsi_to_irq_fallback are implemented. The acpi_get_gsi_domain_id callback returns related fwnode handle of irqdomain for different GSI range. The acpi_gsi_to_irq_fallback will create new mapping for gsi when the mapping of it is not found. Signed-off-by: Jianmin Lv <lvjianmin@loongson.cn> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/1658314292-35346-14-git-send-email-lvjianmin@loongson.cn
| | * | | irqchip: Add LoongArch CPU interrupt controller supportHuacai Chen2022-07-203-0/+122
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | LoongArch CPUINTC stands for CSR.ECFG/CSR.ESTAT and related interrupt controller that described in Section 7.4 of "LoongArch Reference Manual, Vol 1". For more information please refer Documentation/loongarch/irq- chip-model.rst. LoongArch CPUINTC has 13 interrupt sources: SWI0~1, HWI0~7, IPI, TI (Timer) and PCOV (PMC). IRQ mappings of HWI0~7 are configurable (can be created from DT/ACPI), but IPI, TI (Timer) and PCOV (PMC) are hardcoded bits, so we expose the fwnode_handle to map them, and get mapped irq by irq_create_mapping when using them. Co-developed-by: Jianmin Lv <lvjianmin@loongson.cn> Signed-off-by: Jianmin Lv <lvjianmin@loongson.cn> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/1658314292-35346-13-git-send-email-lvjianmin@loongson.cn
| | * | | irqchip: Add Loongson Extended I/O interrupt controller supportHuacai Chen2022-07-203-0/+406
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | EIOINTC stands for "Extended I/O Interrupts" that described in Section 11.2 of "Loongson 3A5000 Processor Reference Manual". For more information please refer Documentation/loongarch/irq-chip-model.rst. Loongson-3A5000 has 4 cores per NUMA node, and each NUMA node has an EIOINTC; while Loongson-3C5000 has 16 cores per NUMA node, and each NUMA node has 4 EIOINTCs. In other words, 16 cores of one NUMA node in Loongson-3C5000 are organized in 4 groups, each group connects to an EIOINTC. We call the "group" here as an EIOINTC node, so each EIOINTC node always includes 4 cores (both in Loongson-3A5000 and Loongson- 3C5000). Co-developed-by: Jianmin Lv <lvjianmin@loongson.cn> Signed-off-by: Jianmin Lv <lvjianmin@loongson.cn> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/1658314292-35346-12-git-send-email-lvjianmin@loongson.cn
| | * | | irqchip/loongson-liointc: Add ACPI init supportHuacai Chen2022-07-201-75/+128
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | LIOINTC stands for "Legacy I/O Interrupts" that described in Section 11.1 of "Loongson 3A5000 Processor Reference Manual". For more information please refer Documentation/loongarch/irq-chip-model.rst. Co-developed-by: Jianmin Lv <lvjianmin@loongson.cn> Signed-off-by: Jianmin Lv <lvjianmin@loongson.cn> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/1658314292-35346-11-git-send-email-lvjianmin@loongson.cn
| | * | | irqchip/loongson-pch-msi: Add ACPI init supportHuacai Chen2022-07-202-43/+86
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | PCH-PIC/PCH-MSI stands for "Interrupt Controller" that described in Section 5 of "Loongson 7A1000 Bridge User Manual". For more information please refer Documentation/loongarch/irq-chip-model.rst. Co-developed-by: Jianmin Lv <lvjianmin@loongson.cn> Signed-off-by: Jianmin Lv <lvjianmin@loongson.cn> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/1658314292-35346-10-git-send-email-lvjianmin@loongson.cn
| | * | | irqchip/loongson-pch-pic: Add ACPI init supportHuacai Chen2022-07-202-32/+147
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | PCH-PIC/PCH-MSI stands for "Interrupt Controller" that described in Section 5 of "Loongson 7A1000 Bridge User Manual". For more information please refer Documentation/loongarch/irq-chip-model.rst. Co-developed-by: Jianmin Lv <lvjianmin@loongson.cn> Signed-off-by: Jianmin Lv <lvjianmin@loongson.cn> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/1658314292-35346-9-git-send-email-lvjianmin@loongson.cn
| | * | | irqchip: Add Loongson PCH LPC controller supportHuacai Chen2022-07-203-0/+214
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | PCH-LPC stands for "LPC Interrupts" that described in Section 24.3 of "Loongson 7A1000 Bridge User Manual". For more information please refer Documentation/loongarch/irq-chip-model.rst. Co-developed-by: Jianmin Lv <lvjianmin@loongson.cn> Signed-off-by: Jianmin Lv <lvjianmin@loongson.cn> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/1658314292-35346-8-git-send-email-lvjianmin@loongson.cn
| | * | | APCI: irq: Add support for multiple GSI domainsMarc Zyngier2022-07-202-12/+24
| | |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In an unfortunate departure from the ACPI spec, the LoongArch architecture split its GSI space across multiple interrupt controllers. In order to be able to reuse the core code and prevent architectures from reinventing an already square wheel, offer the arch code the ability to register a dispatcher function that will return the domain fwnode for a given GSI. The ARM GIC drivers are updated to support this (with a single domain, as intended). Signed-off-by: Marc Zyngier <maz@kernel.org> Cc: Hanjun Guo <guohanjun@huawei.com> Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Signed-off-by: Jianmin Lv <lvjianmin@loongson.cn> Tested-by: Hanjun Guo <guohanjun@huawei.com> Reviewed-by: Hanjun Guo <guohanjun@huawei.com> Link: https://lore.kernel.org/r/1658314292-35346-3-git-send-email-lvjianmin@loongson.cn
| * | | Merge branch irq/renesas-irqc into irq/irqchip-nextMarc Zyngier2022-07-193-0/+402
| |\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * irq/renesas-irqc: : . : New Renesas RZ/G2L IRQC driver from Lad Prabhakar, equipped with : its companion GPIO driver. : . dt-bindings: interrupt-controller: renesas,rzg2l-irqc: Document RZ/V2L SoC gpio: thunderx: Don't directly include asm-generic/msi.h pinctrl: renesas: pinctrl-rzg2l: Add IRQ domain to handle GPIO interrupt dt-bindings: pinctrl: renesas,rzg2l-pinctrl: Document the properties to handle GPIO IRQ gpio: gpiolib: Allow free() callback to be overridden irqchip: Add RZ/G2L IA55 Interrupt Controller driver dt-bindings: interrupt-controller: Add Renesas RZ/G2L Interrupt Controller gpio: Remove dynamic allocation from populate_parent_alloc_arg() Signed-off-by: Marc Zyngier <maz@kernel.org>
| | * | | irqchip: Add RZ/G2L IA55 Interrupt Controller driverLad Prabhakar2022-07-103-0/+402
| | |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add a driver for the Renesas RZ/G2L Interrupt Controller. This supports external pins being used as interrupts. It supports one line for NMI, 8 external pins and 32 GPIO pins (out of 123) to be used as IRQ lines. Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20220707182314.66610-4-prabhakar.mahadev-lad.rj@bp.renesas.com
| * | | Merge branch irq/plic-masking into irq/irqchip-nextMarc Zyngier2022-07-104-67/+101
| |\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * irq/plic-masking: : . : SiFive PLIC optimisations from Samuel Holland: : : "This series removes the spinlocks and cpumask operations from the PLIC : driver's hot path. As far as I know, using the priority to mask : interrupts is an intended usage and will work on all existing : implementations. [...]" : . irqchip/sifive-plic: Separate the enable and mask operations irqchip/sifive-plic: Make better use of the effective affinity mask PCI: hv: Take a const cpumask in hv_compose_msi_req_get_cpu() genirq: Provide an IRQ affinity mask in non-SMP configs genirq: Return a const cpumask from irq_data_get_affinity_mask genirq: Add and use an irq_data_update_affinity helper genirq: Refactor accessors to use irq_data_get_affinity_mask genirq: Drop redundant irq_init_effective_affinity genirq: GENERIC_IRQ_EFFECTIVE_AFF_MASK depends on SMP genirq: GENERIC_IRQ_IPI depends on SMP irqchip/mips-gic: Only register IPI domain when SMP is enabled Signed-off-by: Marc Zyngier <maz@kernel.org>
| | * | | irqchip/sifive-plic: Separate the enable and mask operationsSamuel Holland2022-07-101-21/+34
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The PLIC has two per-IRQ checks before sending an IRQ to a hart context. First, it checks that the IRQ's priority is nonzero. Then, it checks that the enable bit is set for that combination of IRQ and context. Currently, the PLIC driver sets both the priority value and the enable bit in its (un)mask operations. However, modifying the enable bit is problematic for two reasons: 1) The enable bits are packed, so changes are not atomic and require taking a spinlock. 2) The following requirement from the PLIC spec, which explains the racy (un)mask operations in plic_irq_eoi(): If the completion ID does not match an interrupt source that is currently enabled for the target, the completion is silently ignored. Both of these problems are solved by using the priority value to mask IRQs. Each IRQ has a separate priority register, so writing the priority value is atomic. And since the enable bit remains set while an IRQ is masked, the EOI operation works normally. The enable bits are still used to control the IRQ's affinity. Signed-off-by: Samuel Holland <samuel@sholland.org> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20220701202440.59059-3-samuel@sholland.org
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-06 14:13:27 +0000