diff options
Diffstat (limited to 'drivers/irqchip')
34 files changed, 1177 insertions, 394 deletions
diff --git a/drivers/irqchip/Kconfig b/drivers/irqchip/Kconfig index c11b9965c4ad..08bb3b031f23 100644 --- a/drivers/irqchip/Kconfig +++ b/drivers/irqchip/Kconfig @@ -28,6 +28,7 @@ config ARM_GIC_V2M select ARM_GIC select IRQ_MSI_LIB select PCI_MSI + select IRQ_MSI_IOMMU config GIC_NON_BANKED bool @@ -38,12 +39,14 @@ config ARM_GIC_V3 select PARTITION_PERCPU select GENERIC_IRQ_EFFECTIVE_AFF_MASK if SMP select HAVE_ARM_SMCCC_DISCOVERY + select IRQ_MSI_IOMMU config ARM_GIC_V3_ITS bool select GENERIC_MSI_IRQ select IRQ_MSI_LIB default ARM_GIC_V3 + select IRQ_MSI_IOMMU config ARM_GIC_V3_ITS_FSL_MC bool @@ -109,6 +112,22 @@ config I8259 bool select IRQ_DOMAIN +config BCM2712_MIP + tristate "Broadcom BCM2712 MSI-X Interrupt Peripheral support" + depends on ARCH_BRCMSTB || ARCH_BCM2835 || COMPILE_TEST + default m if ARCH_BRCMSTB || ARCH_BCM2835 + depends on ARM_GIC + select GENERIC_IRQ_CHIP + select IRQ_DOMAIN_HIERARCHY + select GENERIC_MSI_IRQ + select IRQ_MSI_LIB + help + Enable support for the Broadcom BCM2712 MSI-X target peripheral + (MIP) needed by brcmstb PCIe to handle MSI-X interrupts on + Raspberry Pi 5. + + If unsure say n. + config BCM6345_L1_IRQ bool select GENERIC_IRQ_CHIP @@ -408,6 +427,7 @@ config LS_EXTIRQ config LS_SCFG_MSI def_bool y if SOC_LS1021A || ARCH_LAYERSCAPE + select IRQ_MSI_IOMMU depends on PCI_MSI config PARTITION_PERCPU @@ -590,13 +610,7 @@ config RISCV_IMSIC select IRQ_DOMAIN_HIERARCHY select GENERIC_IRQ_MATRIX_ALLOCATOR select GENERIC_MSI_IRQ - -config RISCV_IMSIC_PCI - bool - depends on RISCV_IMSIC - depends on PCI - depends on PCI_MSI - default RISCV_IMSIC + select IRQ_MSI_LIB config SIFIVE_PLIC bool @@ -752,6 +766,18 @@ config MCHP_EIC help Support for Microchip External Interrupt Controller. +config SOPHGO_SG2042_MSI + bool "Sophgo SG2042 MSI Controller" + depends on ARCH_SOPHGO || COMPILE_TEST + depends on PCI + select IRQ_DOMAIN_HIERARCHY + select IRQ_MSI_LIB + select PCI_MSI + help + Support for the Sophgo SG2042 MSI Controller. + This on-chip interrupt controller enables MSI sources to be + routed to the primary PLIC controller on SoC. + config SUNPLUS_SP7021_INTC bool "Sunplus SP7021 interrupt controller" if COMPILE_TEST default SOC_SP7021 diff --git a/drivers/irqchip/Makefile b/drivers/irqchip/Makefile index 25e9ad29b8c4..365bcea9a61f 100644 --- a/drivers/irqchip/Makefile +++ b/drivers/irqchip/Makefile @@ -63,6 +63,7 @@ obj-$(CONFIG_XTENSA_MX) += irq-xtensa-mx.o obj-$(CONFIG_XILINX_INTC) += irq-xilinx-intc.o obj-$(CONFIG_IRQ_CROSSBAR) += irq-crossbar.o obj-$(CONFIG_SOC_VF610) += irq-vf610-mscm-ir.o +obj-$(CONFIG_BCM2712_MIP) += irq-bcm2712-mip.o obj-$(CONFIG_BCM6345_L1_IRQ) += irq-bcm6345-l1.o obj-$(CONFIG_BCM7038_L1_IRQ) += irq-bcm7038-l1.o obj-$(CONFIG_BCM7120_L2_IRQ) += irq-bcm7120-l2.o @@ -128,4 +129,5 @@ obj-$(CONFIG_WPCM450_AIC) += irq-wpcm450-aic.o obj-$(CONFIG_IRQ_IDT3243X) += irq-idt3243x.o obj-$(CONFIG_APPLE_AIC) += irq-apple-aic.o obj-$(CONFIG_MCHP_EIC) += irq-mchp-eic.o +obj-$(CONFIG_SOPHGO_SG2042_MSI) += irq-sg2042-msi.o obj-$(CONFIG_SUNPLUS_SP7021_INTC) += irq-sp7021-intc.o diff --git a/drivers/irqchip/irq-apple-aic.c b/drivers/irqchip/irq-apple-aic.c index 2b1684c60e3c..974dc088c853 100644 --- a/drivers/irqchip/irq-apple-aic.c +++ b/drivers/irqchip/irq-apple-aic.c @@ -409,15 +409,15 @@ static void __exception_irq_entry aic_handle_irq(struct pt_regs *regs) * in use, and be cleared when coming back from the handler. */ if (is_kernel_in_hyp_mode() && - (read_sysreg_s(SYS_ICH_HCR_EL2) & ICH_HCR_EN) && + (read_sysreg_s(SYS_ICH_HCR_EL2) & ICH_HCR_EL2_En) && read_sysreg_s(SYS_ICH_MISR_EL2) != 0) { generic_handle_domain_irq(aic_irqc->hw_domain, AIC_FIQ_HWIRQ(AIC_VGIC_MI)); - if (unlikely((read_sysreg_s(SYS_ICH_HCR_EL2) & ICH_HCR_EN) && + if (unlikely((read_sysreg_s(SYS_ICH_HCR_EL2) & ICH_HCR_EL2_En) && read_sysreg_s(SYS_ICH_MISR_EL2))) { pr_err_ratelimited("vGIC IRQ fired and not handled by KVM, disabling.\n"); - sysreg_clear_set_s(SYS_ICH_HCR_EL2, ICH_HCR_EN, 0); + sysreg_clear_set_s(SYS_ICH_HCR_EL2, ICH_HCR_EL2_En, 0); } } } @@ -841,7 +841,7 @@ static int aic_init_cpu(unsigned int cpu) VM_TMR_FIQ_ENABLE_V | VM_TMR_FIQ_ENABLE_P, 0); /* vGIC maintenance IRQ */ - sysreg_clear_set_s(SYS_ICH_HCR_EL2, ICH_HCR_EN, 0); + sysreg_clear_set_s(SYS_ICH_HCR_EL2, ICH_HCR_EL2_En, 0); } /* PMC FIQ */ diff --git a/drivers/irqchip/irq-armada-370-xp.c b/drivers/irqchip/irq-armada-370-xp.c index d7c5ef248474..2aa6a51e05d0 100644 --- a/drivers/irqchip/irq-armada-370-xp.c +++ b/drivers/irqchip/irq-armada-370-xp.c @@ -564,7 +564,7 @@ static void mpic_reenable_percpu(struct mpic *mpic) static int mpic_starting_cpu(unsigned int cpu) { - struct mpic *mpic = irq_get_default_host()->host_data; + struct mpic *mpic = irq_get_default_domain()->host_data; mpic_perf_init(mpic); mpic_smp_cpu_init(mpic); @@ -700,7 +700,7 @@ static void mpic_handle_cascade_irq(struct irq_desc *desc) static void __exception_irq_entry mpic_handle_irq(struct pt_regs *regs) { - struct mpic *mpic = irq_get_default_host()->host_data; + struct mpic *mpic = irq_get_default_domain()->host_data; irq_hw_number_t i; u32 irqstat; @@ -880,7 +880,7 @@ static int __init mpic_of_init(struct device_node *node, struct device_node *par } if (mpic_is_ipi_available(mpic)) { - irq_set_default_host(mpic->domain); + irq_set_default_domain(mpic->domain); set_handle_irq(mpic_handle_irq); #ifdef CONFIG_SMP err = mpic_ipi_init(mpic, node); diff --git a/drivers/irqchip/irq-bcm2712-mip.c b/drivers/irqchip/irq-bcm2712-mip.c new file mode 100644 index 000000000000..4cce24233f0f --- /dev/null +++ b/drivers/irqchip/irq-bcm2712-mip.c @@ -0,0 +1,293 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright (C) 2024 Raspberry Pi Ltd., All Rights Reserved. + * Copyright (c) 2024 SUSE + */ + +#include <linux/bitmap.h> +#include <linux/irqchip.h> +#include <linux/irqdomain.h> +#include <linux/msi.h> +#include <linux/of_address.h> +#include <linux/of_platform.h> + +#include "irq-msi-lib.h" + +#define MIP_INT_RAISE 0x00 +#define MIP_INT_CLEAR 0x10 +#define MIP_INT_CFGL_HOST 0x20 +#define MIP_INT_CFGH_HOST 0x30 +#define MIP_INT_MASKL_HOST 0x40 +#define MIP_INT_MASKH_HOST 0x50 +#define MIP_INT_MASKL_VPU 0x60 +#define MIP_INT_MASKH_VPU 0x70 +#define MIP_INT_STATUSL_HOST 0x80 +#define MIP_INT_STATUSH_HOST 0x90 +#define MIP_INT_STATUSL_VPU 0xa0 +#define MIP_INT_STATUSH_VPU 0xb0 + +/** + * struct mip_priv - MSI-X interrupt controller data + * @lock: Used to protect bitmap alloc/free + * @base: Base address of MMIO area + * @msg_addr: PCIe MSI-X address + * @msi_base: MSI base + * @num_msis: Count of MSIs + * @msi_offset: MSI offset + * @bitmap: A bitmap for hwirqs + * @parent: Parent domain (GIC) + * @dev: A device pointer + */ +struct mip_priv { + spinlock_t lock; + void __iomem *base; + u64 msg_addr; + u32 msi_base; + u32 num_msis; + u32 msi_offset; + unsigned long *bitmap; + struct irq_domain *parent; + struct device *dev; +}; + +static void mip_compose_msi_msg(struct irq_data *d, struct msi_msg *msg) +{ + struct mip_priv *mip = irq_data_get_irq_chip_data(d); + + msg->address_hi = upper_32_bits(mip->msg_addr); + msg->address_lo = lower_32_bits(mip->msg_addr); + msg->data = d->hwirq; +} + +static struct irq_chip mip_middle_irq_chip = { + .name = "MIP", + .irq_mask = irq_chip_mask_parent, + .irq_unmask = irq_chip_unmask_parent, + .irq_eoi = irq_chip_eoi_parent, + .irq_set_affinity = irq_chip_set_affinity_parent, + .irq_set_type = irq_chip_set_type_parent, + .irq_compose_msi_msg = mip_compose_msi_msg, +}; + +static int mip_alloc_hwirq(struct mip_priv *mip, unsigned int nr_irqs) +{ + guard(spinlock)(&mip->lock); + return bitmap_find_free_region(mip->bitmap, mip->num_msis, ilog2(nr_irqs)); +} + +static void mip_free_hwirq(struct mip_priv *mip, unsigned int hwirq, + unsigned int nr_irqs) +{ + guard(spinlock)(&mip->lock); + bitmap_release_region(mip->bitmap, hwirq, ilog2(nr_irqs)); +} + +static int mip_middle_domain_alloc(struct irq_domain *domain, unsigned int virq, + unsigned int nr_irqs, void *arg) +{ + struct mip_priv *mip = domain->host_data; + struct irq_fwspec fwspec = {0}; + unsigned int hwirq, i; + struct irq_data *irqd; + int irq, ret; + + irq = mip_alloc_hwirq(mip, nr_irqs); + if (irq < 0) + return irq; + + hwirq = irq + mip->msi_offset; + + fwspec.fwnode = domain->parent->fwnode; + fwspec.param_count = 3; + fwspec.param[0] = 0; + fwspec.param[1] = hwirq + mip->msi_base; + fwspec.param[2] = IRQ_TYPE_EDGE_RISING; + + ret = irq_domain_alloc_irqs_parent(domain, virq, nr_irqs, &fwspec); + if (ret) + goto err_free_hwirq; + + for (i = 0; i < nr_irqs; i++) { + irqd = irq_domain_get_irq_data(domain->parent, virq + i); + irqd->chip->irq_set_type(irqd, IRQ_TYPE_EDGE_RISING); + + ret = irq_domain_set_hwirq_and_chip(domain, virq + i, hwirq + i, + &mip_middle_irq_chip, mip); + if (ret) + goto err_free; + + irqd = irq_get_irq_data(virq + i); + irqd_set_single_target(irqd); + irqd_set_affinity_on_activate(irqd); + } + + return 0; + +err_free: + irq_domain_free_irqs_parent(domain, virq, nr_irqs); +err_free_hwirq: + mip_free_hwirq(mip, irq, nr_irqs); + return ret; +} + +static void mip_middle_domain_free(struct irq_domain *domain, unsigned int virq, + unsigned int nr_irqs) +{ + struct irq_data *irqd = irq_domain_get_irq_data(domain, virq); + struct mip_priv *mip; + unsigned int hwirq; + + if (!irqd) + return; + + mip = irq_data_get_irq_chip_data(irqd); + hwirq = irqd_to_hwirq(irqd); + irq_domain_free_irqs_parent(domain, virq, nr_irqs); + mip_free_hwirq(mip, hwirq - mip->msi_offset, nr_irqs); +} + +static const struct irq_domain_ops mip_middle_domain_ops = { + .select = msi_lib_irq_domain_select, + .alloc = mip_middle_domain_alloc, + .free = mip_middle_domain_free, +}; + +#define MIP_MSI_FLAGS_REQUIRED (MSI_FLAG_USE_DEF_DOM_OPS | \ + MSI_FLAG_USE_DEF_CHIP_OPS | \ + MSI_FLAG_PCI_MSI_MASK_PARENT) + +#define MIP_MSI_FLAGS_SUPPORTED (MSI_GENERIC_FLAGS_MASK | \ + MSI_FLAG_MULTI_PCI_MSI | \ + MSI_FLAG_PCI_MSIX) + +static const struct msi_parent_ops mip_msi_parent_ops = { + .supported_flags = MIP_MSI_FLAGS_SUPPORTED, + .required_flags = MIP_MSI_FLAGS_REQUIRED, + .chip_flags = MSI_CHIP_FLAG_SET_EOI | MSI_CHIP_FLAG_SET_ACK, + .bus_select_token = DOMAIN_BUS_GENERIC_MSI, + .bus_select_mask = MATCH_PCI_MSI, + .prefix = "MIP-MSI-", + .init_dev_msi_info = msi_lib_init_dev_msi_info, +}; + +static int mip_init_domains(struct mip_priv *mip, struct device_node *np) +{ + struct irq_domain *middle; + + middle = irq_domain_add_hierarchy(mip->parent, 0, mip->num_msis, np, + &mip_middle_domain_ops, mip); + if (!middle) + return -ENOMEM; + + irq_domain_update_bus_token(middle, DOMAIN_BUS_GENERIC_MSI); + middle->dev = mip->dev; + middle->flags |= IRQ_DOMAIN_FLAG_MSI_PARENT; + middle->msi_parent_ops = &mip_msi_parent_ops; + + /* + * All MSI-X unmasked for the host, masked for the VPU, and edge-triggered. + */ + writel(0, mip->base + MIP_INT_MASKL_HOST); + writel(0, mip->base + MIP_INT_MASKH_HOST); + writel(~0, mip->base + MIP_INT_MASKL_VPU); + writel(~0, mip->base + MIP_INT_MASKH_VPU); + writel(~0, mip->base + MIP_INT_CFGL_HOST); + writel(~0, mip->base + MIP_INT_CFGH_HOST); + + return 0; +} + +static int mip_parse_dt(struct mip_priv *mip, struct device_node *np) +{ + struct of_phandle_args args; + u64 size; + int ret; + + ret = of_property_read_u32(np, "brcm,msi-offset", &mip->msi_offset); + if (ret) + mip->msi_offset = 0; + + ret = of_parse_phandle_with_args(np, "msi-ranges", "#interrupt-cells", + 0, &args); + if (ret) + return ret; + + ret = of_property_read_u32_index(np, "msi-ranges", args.args_count + 1, + &mip->num_msis); + if (ret) + goto err_put; + + ret = of_property_read_reg(np, 1, &mip->msg_addr, &size); + if (ret) + goto err_put; + + mip->msi_base = args.args[1]; + + mip->parent = irq_find_host(args.np); + if (!mip->parent) + ret = -EINVAL; + +err_put: + of_node_put(args.np); + return ret; +} + +static int __init mip_of_msi_init(struct device_node *node, struct device_node *parent) +{ + struct platform_device *pdev; + struct mip_priv *mip; + int ret; + + pdev = of_find_device_by_node(node); + of_node_put(node); + if (!pdev) + return -EPROBE_DEFER; + + mip = kzalloc(sizeof(*mip), GFP_KERNEL); + if (!mip) + return -ENOMEM; + + spin_lock_init(&mip->lock); + mip->dev = &pdev->dev; + + ret = mip_parse_dt(mip, node); + if (ret) + goto err_priv; + + mip->base = of_iomap(node, 0); + if (!mip->base) { + ret = -ENXIO; + goto err_priv; + } + + mip->bitmap = bitmap_zalloc(mip->num_msis, GFP_KERNEL); + if (!mip->bitmap) { + ret = -ENOMEM; + goto err_base; + } + + ret = mip_init_domains(mip, node); + if (ret) + goto err_map; + + dev_dbg(&pdev->dev, "MIP: MSI-X count: %u, base: %u, offset: %u, msg_addr: %llx\n", + mip->num_msis, mip->msi_base, mip->msi_offset, mip->msg_addr); + + return 0; + +err_map: + bitmap_free(mip->bitmap); +err_base: + iounmap(mip->base); +err_priv: + kfree(mip); + return ret; +} + +IRQCHIP_PLATFORM_DRIVER_BEGIN(mip_msi) +IRQCHIP_MATCH("brcm,bcm2712-mip", mip_of_msi_init) +IRQCHIP_PLATFORM_DRIVER_END(mip_msi) +MODULE_DESCRIPTION("Broadcom BCM2712 MSI-X interrupt controller"); +MODULE_AUTHOR("Phil Elwell <phil@raspberrypi.com>"); +MODULE_AUTHOR("Stanimir Varbanov <svarbanov@suse.de>"); +MODULE_LICENSE("GPL"); diff --git a/drivers/irqchip/irq-clps711x.c b/drivers/irqchip/irq-clps711x.c index 806ebb1de201..48c73c948ddf 100644 --- a/drivers/irqchip/irq-clps711x.c +++ b/drivers/irqchip/irq-clps711x.c @@ -191,7 +191,7 @@ static int __init _clps711x_intc_init(struct device_node *np, goto out_irqfree; } - irq_set_default_host(clps711x_intc->domain); + irq_set_default_domain(clps711x_intc->domain); set_handle_irq(clps711x_irqh); #ifdef CONFIG_FIQ diff --git a/drivers/irqchip/irq-davinci-cp-intc.c b/drivers/irqchip/irq-davinci-cp-intc.c index f4f8e9fadbbf..d7948c55f542 100644 --- a/drivers/irqchip/irq-davinci-cp-intc.c +++ b/drivers/irqchip/irq-davinci-cp-intc.c @@ -11,7 +11,6 @@ #include <linux/init.h> #include <linux/irq.h> #include <linux/irqchip.h> -#include <linux/irqchip/irq-davinci-cp-intc.h> #include <linux/irqdomain.h> #include <linux/io.h> #include <linux/of.h> @@ -154,24 +153,20 @@ static const struct irq_domain_ops davinci_cp_intc_irq_domain_ops = { .xlate = irq_domain_xlate_onetwocell, }; -static int __init -davinci_cp_intc_do_init(const struct davinci_cp_intc_config *config, - struct device_node *node) +static int __init davinci_cp_intc_do_init(struct resource *res, unsigned int num_irqs, + struct device_node *node) { - unsigned int num_regs = BITS_TO_LONGS(config->num_irqs); + unsigned int num_regs = BITS_TO_LONGS(num_irqs); int offset, irq_base; void __iomem *req; - req = request_mem_region(config->reg.start, - resource_size(&config->reg), - "davinci-cp-intc"); + req = request_mem_region(res->start, resource_size(res), "davinci-cp-intc"); if (!req) { pr_err("%s: register range busy\n", __func__); return -EBUSY; } - davinci_cp_intc_base = ioremap(config->reg.start, - resource_size(&config->reg)); + davinci_cp_intc_base = ioremap(res->start, resource_size(res)); if (!davinci_cp_intc_base) { pr_err("%s: unable to ioremap register range\n", __func__); return -EINVAL; @@ -184,8 +179,7 @@ davinci_cp_intc_do_init(const struct davinci_cp_intc_config *config, /* Disable system interrupts */ for (offset = 0; offset < num_regs; offset++) - davinci_cp_intc_write(~0, - DAVINCI_CP_INTC_SYS_ENABLE_CLR(offset)); + davinci_cp_intc_write(~0, DAVINCI_CP_INTC_SYS_ENABLE_CLR(offset)); /* Set to normal mode, no nesting, no priority hold */ davinci_cp_intc_write(0, DAVINCI_CP_INTC_CTRL); @@ -193,28 +187,25 @@ davinci_cp_intc_do_init(const struct davinci_cp_intc_config *config, /* Clear system interrupt status */ for (offset = 0; offset < num_regs; offset++) - davinci_cp_intc_write(~0, - DAVINCI_CP_INTC_SYS_STAT_CLR(offset)); + davinci_cp_intc_write(~0, DAVINCI_CP_INTC_SYS_STAT_CLR(offset)); /* Enable nIRQ (what about nFIQ?) */ davinci_cp_intc_write(1, DAVINCI_CP_INTC_HOST_ENABLE_IDX_SET); + /* 4 channels per register */ + num_regs = (num_irqs + 3) >> 2; /* Default all priorities to channel 7. */ - num_regs = (config->num_irqs + 3) >> 2; /* 4 channels per register */ for (offset = 0; offset < num_regs; offset++) - davinci_cp_intc_write(0x07070707, - DAVINCI_CP_INTC_CHAN_MAP(offset)); + davinci_cp_intc_write(0x07070707, DAVINCI_CP_INTC_CHAN_MAP(offset)); - irq_base = irq_alloc_descs(-1, 0, config->num_irqs, 0); + irq_base = irq_alloc_descs(-1, 0, num_irqs, 0); if (irq_base < 0) { - pr_err("%s: unable to allocate interrupt descriptors: %d\n", - __func__, irq_base); + pr_err("%s: unable to allocate interrupt descriptors: %d\n", __func__, irq_base); return irq_base; } - davinci_cp_intc_irq_domain = irq_domain_add_legacy( - node, config->num_irqs, irq_base, 0, - &davinci_cp_intc_irq_domain_ops, NULL); + davinci_cp_intc_irq_domain = irq_domain_add_legacy(node, num_irqs, irq_base, 0, + &davinci_cp_intc_irq_domain_ops, NULL); if (!davinci_cp_intc_irq_domain) { pr_err("%s: unable to create an interrupt domain\n", __func__); @@ -229,31 +220,25 @@ davinci_cp_intc_do_init(const struct davinci_cp_intc_config *config, return 0; } -int __init davinci_cp_intc_init(const struct davinci_cp_intc_config *config) -{ - return davinci_cp_intc_do_init(config, NULL); -} - static int __init davinci_cp_intc_of_init(struct device_node *node, struct device_node *parent) { - struct davinci_cp_intc_config config = { }; + unsigned int num_irqs; + struct resource res; int ret; - ret = of_address_to_resource(node, 0, &config.reg); + ret = of_address_to_resource(node, 0, &res); if (ret) { - pr_err("%s: unable to get the register range from device-tree\n", - __func__); + pr_err("%s: unable to get the register range from device-tree\n", __func__); return ret; } - ret = of_property_read_u32(node, "ti,intc-size", &config.num_irqs); + ret = of_property_read_u32(node, "ti,intc-size", &num_irqs); if (ret) { - pr_err("%s: unable to read the 'ti,intc-size' property\n", - __func__); + pr_err("%s: unable to read the 'ti,intc-size' property\n", __func__); return ret; } - return davinci_cp_intc_do_init(&config, node); + return davinci_cp_intc_do_init(&res, num_irqs, node); } IRQCHIP_DECLARE(cp_intc, "ti,cp-intc", davinci_cp_intc_of_init); diff --git a/drivers/irqchip/irq-gic-v2m.c b/drivers/irqchip/irq-gic-v2m.c index be35c5349986..dc98c39d2b20 100644 --- a/drivers/irqchip/irq-gic-v2m.c +++ b/drivers/irqchip/irq-gic-v2m.c @@ -87,9 +87,6 @@ static void gicv2m_compose_msi_msg(struct irq_data *data, struct msi_msg *msg) struct v2m_data *v2m = irq_data_get_irq_chip_data(data); phys_addr_t addr = gicv2m_get_msi_addr(v2m, data->hwirq); - msg->address_hi = upper_32_bits(addr); - msg->address_lo = lower_32_bits(addr); - if (v2m->flags & GICV2M_GRAVITON_ADDRESS_ONLY) msg->data = 0; else @@ -97,7 +94,7 @@ static void gicv2m_compose_msi_msg(struct irq_data *data, struct msi_msg *msg) if (v2m->flags & GICV2M_NEEDS_SPI_OFFSET) msg->data -= v2m->spi_offset; - iommu_dma_compose_msi_msg(irq_data_get_msi_desc(data), msg); + msi_msg_set_addr(irq_data_get_msi_desc(data), msg, addr); } static struct irq_chip gicv2m_irq_chip = { @@ -255,6 +252,7 @@ static void __init gicv2m_teardown(void) static struct msi_parent_ops gicv2m_msi_parent_ops = { .supported_flags = GICV2M_MSI_FLAGS_SUPPORTED, .required_flags = GICV2M_MSI_FLAGS_REQUIRED, + .chip_flags = MSI_CHIP_FLAG_SET_EOI | MSI_CHIP_FLAG_SET_ACK, .bus_select_token = DOMAIN_BUS_NEXUS, .bus_select_mask = MATCH_PCI_MSI | MATCH_PLATFORM_MSI, .prefix = "GICv2m-", @@ -423,7 +421,7 @@ static int __init gicv2m_of_init(struct fwnode_handle *parent_handle, #ifdef CONFIG_ACPI static int acpi_num_msi; -static __init struct fwnode_handle *gicv2m_get_fwnode(struct device *dev) +static struct fwnode_handle *gicv2m_get_fwnode(struct device *dev) { struct v2m_data *data; diff --git a/drivers/irqchip/irq-gic-v3-its-msi-parent.c b/drivers/irqchip/irq-gic-v3-its-msi-parent.c index e150365fbe89..bdb04c808148 100644 --- a/drivers/irqchip/irq-gic-v3-its-msi-parent.c +++ b/drivers/irqchip/irq-gic-v3-its-msi-parent.c @@ -203,6 +203,7 @@ static bool its_init_dev_msi_info(struct device *dev, struct irq_domain *domain, const struct msi_parent_ops gic_v3_its_msi_parent_ops = { .supported_flags = ITS_MSI_FLAGS_SUPPORTED, .required_flags = ITS_MSI_FLAGS_REQUIRED, + .chip_flags = MSI_CHIP_FLAG_SET_EOI | MSI_CHIP_FLAG_SET_ACK, .bus_select_token = DOMAIN_BUS_NEXUS, .bus_select_mask = MATCH_PCI_MSI | MATCH_PLATFORM_MSI, .prefix = "ITS-", diff --git a/drivers/irqchip/irq-gic-v3-its.c b/drivers/irqchip/irq-gic-v3-its.c index 8c3ec5734f1e..0115ad6c8259 100644 --- a/drivers/irqchip/irq-gic-v3-its.c +++ b/drivers/irqchip/irq-gic-v3-its.c @@ -205,13 +205,15 @@ static DEFINE_IDA(its_vpeid_ida); #define gic_data_rdist_rd_base() (gic_data_rdist()->rd_base) #define gic_data_rdist_vlpi_base() (gic_data_rdist_rd_base() + SZ_128K) +static gfp_t gfp_flags_quirk; + static struct page *its_alloc_pages_node(int node, gfp_t gfp, unsigned int order) { struct page *page; int ret = 0; - page = alloc_pages_node(node, gfp, order); + page = alloc_pages_node(node, gfp | gfp_flags_quirk, order); if (!page) return NULL; @@ -1809,17 +1811,10 @@ static u64 its_irq_get_msi_base(struct its_device *its_dev) static void its_irq_compose_msi_msg(struct irq_data *d, struct msi_msg *msg) { struct its_device *its_dev = irq_data_get_irq_chip_data(d); - struct its_node *its; - u64 addr; - - its = its_dev->its; - addr = its->get_msi_base(its_dev); - - msg->address_lo = lower_32_bits(addr); - msg->address_hi = upper_32_bits(addr); - msg->data = its_get_event_id(d); - iommu_dma_compose_msi_msg(irq_data_get_msi_desc(d), msg); + msg->data = its_get_event_id(d); + msi_msg_set_addr(irq_data_get_msi_desc(d), msg, + its_dev->its->get_msi_base(its_dev)); } static int its_irq_set_irqchip_state(struct irq_data *d, @@ -4887,6 +4882,17 @@ static bool __maybe_unused its_enable_quirk_hip09_162100801(void *data) return true; } +static bool __maybe_unused its_enable_rk3568002(void *data) +{ + if (!of_machine_is_compatible("rockchip,rk3566") && + !of_machine_is_compatible("rockchip,rk3568")) + return false; + + gfp_flags_quirk |= GFP_DMA32; + + return true; +} + static const struct gic_quirk its_quirks[] = { #ifdef CONFIG_CAVIUM_ERRATUM_22375 { @@ -4954,6 +4960,14 @@ static const struct gic_quirk its_quirks[] = { .property = "dma-noncoherent", .init = its_set_non_coherent, }, +#ifdef CONFIG_ROCKCHIP_ERRATUM_3568002 + { + .desc = "ITS: Rockchip erratum RK3568002", + .iidr = 0x0201743b, + .mask = 0xffffffff, + .init = its_enable_rk3568002, + }, +#endif { } }; diff --git a/drivers/irqchip/irq-gic-v3-mbi.c b/drivers/irqchip/irq-gic-v3-mbi.c index 3fe870f8ee17..34e9ca77a8c3 100644 --- a/drivers/irqchip/irq-gic-v3-mbi.c +++ b/drivers/irqchip/irq-gic-v3-mbi.c @@ -147,22 +147,18 @@ static const struct irq_domain_ops mbi_domain_ops = { static void mbi_compose_msi_msg(struct irq_data *data, struct msi_msg *msg) { - msg[0].address_hi = upper_32_bits(mbi_phys_base + GICD_SETSPI_NSR); - msg[0].address_lo = lower_32_bits(mbi_phys_base + GICD_SETSPI_NSR); msg[0].data = data->parent_data->hwirq; - - iommu_dma_compose_msi_msg(irq_data_get_msi_desc(data), msg); + msi_msg_set_addr(irq_data_get_msi_desc(data), &msg[0], + mbi_phys_base + GICD_SETSPI_NSR); } static void mbi_compose_mbi_msg(struct irq_data *data, struct msi_msg *msg) { mbi_compose_msi_msg(data, msg); - msg[1].address_hi = upper_32_bits(mbi_phys_base + GICD_CLRSPI_NSR); - msg[1].address_lo = lower_32_bits(mbi_phys_base + GICD_CLRSPI_NSR); msg[1].data = data->parent_data->hwirq; - - iommu_dma_compose_msi_msg(irq_data_get_msi_desc(data), &msg[1]); + msi_msg_set_addr(irq_data_get_msi_desc(data), &msg[1], + mbi_phys_base + GICD_CLRSPI_NSR); } static bool mbi_init_dev_msi_info(struct device *dev, struct irq_domain *domain, @@ -201,6 +197,7 @@ static bool mbi_init_dev_msi_info(struct device *dev, struct irq_domain *domain, static const struct msi_parent_ops gic_v3_mbi_msi_parent_ops = { .supported_flags = MBI_MSI_FLAGS_SUPPORTED, .required_flags = MBI_MSI_FLAGS_REQUIRED, + .chip_flags = MSI_CHIP_FLAG_SET_EOI | MSI_CHIP_FLAG_SET_ACK, .bus_select_token = DOMAIN_BUS_NEXUS, .bus_select_mask = MATCH_PCI_MSI | MATCH_PLATFORM_MSI, .prefix = "MBI-", diff --git a/drivers/irqchip/irq-imx-gpcv2.c b/drivers/irqchip/irq-imx-gpcv2.c index 8a0e82067924..095ae8e3217e 100644 --- a/drivers/irqchip/irq-imx-gpcv2.c +++ b/drivers/irqchip/irq-imx-gpcv2.c @@ -247,7 +247,7 @@ static int __init imx_gpcv2_irqchip_init(struct device_node *node, kfree(cd); return -ENOMEM; } - irq_set_default_host(domain); + irq_set_default_domain(domain); /* Initially mask all interrupts */ for (i = 0; i < IMR_NUM; i++) { diff --git a/drivers/irqchip/irq-imx-irqsteer.c b/drivers/irqchip/irq-imx-irqsteer.c index b0e9788c0045..afbfcce3b1e3 100644 --- a/drivers/irqchip/irq-imx-irqsteer.c +++ b/drivers/irqchip/irq-imx-irqsteer.c @@ -24,7 +24,7 @@ #define CHAN_MINTDIS(t) (CTRL_STRIDE_OFF(t, 3) + 0x4) #define CHAN_MASTRSTAT(t) (CTRL_STRIDE_OFF(t, 3) + 0x8) -#define CHAN_MAX_OUTPUT_INT 0x8 +#define CHAN_MAX_OUTPUT_INT 0xF struct irqsteer_data { void __iomem *regs; @@ -228,10 +228,8 @@ static int imx_irqsteer_probe(struct platform_device *pdev) for (i = 0; i < data->irq_count; i++) { data->irq[i] = irq_of_parse_and_map(np, i); - if (!data->irq[i]) { - ret = -EINVAL; - goto out; - } + if (!data->irq[i]) + break; irq_set_chained_handler_and_data(data->irq[i], imx_irqsteer_irq_handler, @@ -254,9 +252,13 @@ static void imx_irqsteer_remove(struct platform_device *pdev) struct irqsteer_data *irqsteer_data = platform_get_drvdata(pdev); int i; - for (i = 0; i < irqsteer_data->irq_count; i++) + for (i = 0; i < irqsteer_data->irq_count; i++) { + if (!irqsteer_data->irq[i]) + break; + irq_set_chained_handler_and_data(irqsteer_data->irq[i], NULL, NULL); + } irq_domain_remove(irqsteer_data->domain); diff --git a/drivers/irqchip/irq-imx-mu-msi.c b/drivers/irqchip/irq-imx-mu-msi.c index 4342a21de1eb..69aacdfc8bef 100644 --- a/drivers/irqchip/irq-imx-mu-msi.c +++ b/drivers/irqchip/irq-imx-mu-msi.c @@ -214,6 +214,7 @@ static void imx_mu_msi_irq_handler(struct irq_desc *desc) static const struct msi_parent_ops imx_mu_msi_parent_ops = { .supported_flags = IMX_MU_MSI_FLAGS_SUPPORTED, .required_flags = IMX_MU_MSI_FLAGS_REQUIRED, + .chip_flags = MSI_CHIP_FLAG_SET_EOI | MSI_CHIP_FLAG_SET_ACK, .bus_select_token = DOMAIN_BUS_NEXUS, .bus_select_mask = MATCH_PLATFORM_MSI, .prefix = "MU-MSI-", diff --git a/drivers/irqchip/irq-loongson-pch-msi.c b/drivers/irqchip/irq-loongson-pch-msi.c index bd337ecddb40..9c62108b3ad5 100644 --- a/drivers/irqchip/irq-loongson-pch-msi.c +++ b/drivers/irqchip/irq-loongson-pch-msi.c @@ -146,6 +146,7 @@ static const struct irq_domain_ops pch_msi_middle_domain_ops = { static struct msi_parent_ops pch_msi_parent_ops = { .required_flags = PCH_MSI_FLAGS_REQUIRED, .supported_flags = PCH_MSI_FLAGS_SUPPORTED, + .chip_flags = MSI_CHIP_FLAG_SET_EOI | MSI_CHIP_FLAG_SET_ACK, .bus_select_mask = MATCH_PCI_MSI, .bus_select_token = DOMAIN_BUS_NEXUS, .prefix = "PCH-", diff --git a/drivers/irqchip/irq-ls-scfg-msi.c b/drivers/irqchip/irq-ls-scfg-msi.c index c0e1aafe468c..3cb80796cc7c 100644 --- a/drivers/irqchip/irq-ls-scfg-msi.c +++ b/drivers/irqchip/irq-ls-scfg-msi.c @@ -87,8 +87,6 @@ static void ls_scfg_msi_compose_msg(struct irq_data *data, struct msi_msg *msg) { struct ls_scfg_msi *msi_data = irq_data_get_irq_chip_data(data); - msg->address_hi = upper_32_bits(msi_data->msiir_addr); - msg->address_lo = lower_32_bits(msi_data->msiir_addr); msg->data = data->hwirq; if (msi_affinity_flag) { @@ -98,7 +96,8 @@ static void ls_scfg_msi_compose_msg(struct irq_data *data, struct msi_msg *msg) msg->data |= cpumask_first(mask); } - iommu_dma_compose_msi_msg(irq_data_get_msi_desc(data), msg); + msi_msg_set_addr(irq_data_get_msi_desc(data), msg, + msi_data->msiir_addr); } static int ls_scfg_msi_set_affinity(struct irq_data *irq_data, diff --git a/drivers/irqchip/irq-meson-gpio.c b/drivers/irqchip/irq-meson-gpio.c index cd789fa51519..0a25536a5d07 100644 --- a/drivers/irqchip/irq-meson-gpio.c +++ b/drivers/irqchip/irq-meson-gpio.c @@ -26,8 +26,6 @@ /* use for A1 like chips */ #define REG_PIN_A1_SEL 0x04 -/* Used for s4 chips */ -#define REG_EDGE_POL_S4 0x1c /* * Note: The S905X3 datasheet reports that BOTH_EDGE is controlled by @@ -72,6 +70,7 @@ struct meson_gpio_irq_params { bool support_edge_both; unsigned int edge_both_offset; unsigned int edge_single_offset; + unsigned int edge_pol_reg; unsigned int pol_low_offset; unsigned int pin_sel_mask; struct irq_ctl_ops ops; @@ -105,6 +104,18 @@ struct meson_gpio_irq_params { .pin_sel_mask = 0x7f, \ .nr_channels = 8, \ +#define INIT_MESON_A4_AO_COMMON_DATA(irqs) \ + INIT_MESON_COMMON(irqs, meson_a1_gpio_irq_init, \ + meson_a1_gpio_irq_sel_pin, \ + meson_s4_gpio_irq_set_type) \ + .support_edge_both = true, \ + .edge_both_offset = 0, \ + .edge_single_offset = 12, \ + .edge_pol_reg = 0x8, \ + .pol_low_offset = 0, \ + .pin_sel_mask = 0xff, \ + .nr_channels = 2, \ + #define INIT_MESON_S4_COMMON_DATA(irqs) \ INIT_MESON_COMMON(irqs, meson_a1_gpio_irq_init, \ meson_a1_gpio_irq_sel_pin, \ @@ -112,6 +123,7 @@ struct meson_gpio_irq_params { .support_edge_both = true, \ .edge_both_offset = 0, \ .edge_single_offset = 12, \ + .edge_pol_reg = 0x1c, \ .pol_low_offset = 0, \ .pin_sel_mask = 0xff, \ .nr_channels = 12, \ @@ -146,6 +158,18 @@ static const struct meson_gpio_irq_params a1_params = { INIT_MESON_A1_COMMON_DATA(62) }; +static const struct meson_gpio_irq_params a4_params = { + INIT_MESON_S4_COMMON_DATA(81) +}; + +static const struct meson_gpio_irq_params a4_ao_params = { + INIT_MESON_A4_AO_COMMON_DATA(8) +}; + +static const struct meson_gpio_irq_params a5_params = { + INIT_MESON_S4_COMMON_DATA(99) +}; + static const struct meson_gpio_irq_params s4_params = { INIT_MESON_S4_COMMON_DATA(82) }; @@ -168,6 +192,9 @@ static const struct of_device_id meson_irq_gpio_matches[] __maybe_unused = { { .compatible = "amlogic,meson-sm1-gpio-intc", .data = &sm1_params }, { .compatible = "amlogic,meson-a1-gpio-intc", .data = &a1_params }, { .compatible = "amlogic,meson-s4-gpio-intc", .data = &s4_params }, + { .compatible = "amlogic,a4-gpio-ao-intc", .data = &a4_ao_params }, + { .compatible = "amlogic,a4-gpio-intc", .data = &a4_params }, + { .compatible = "amlogic,a5-gpio-intc", .data = &a5_params }, { .compatible = "amlogic,c3-gpio-intc", .data = &c3_params }, { .compatible = "amlogic,t7-gpio-intc", .data = &t7_params }, { } @@ -299,11 +326,10 @@ meson_gpio_irq_release_channel(struct meson_gpio_irq_controller *ctl, static int meson8_gpio_irq_set_type(struct meson_gpio_irq_controller *ctl, unsigned int type, u32 *channel_hwirq) { - u32 val = 0; + const struct meson_gpio_irq_params *params = ctl->params; unsigned int idx; - const struct meson_gpio_irq_params *params; + u32 val = 0; - params = ctl->params; idx = meson_gpio_irq_get_channel_idx(ctl, channel_hwirq); /* @@ -356,19 +382,19 @@ static int meson8_gpio_irq_set_type(struct meson_gpio_irq_controller *ctl, static int meson_s4_gpio_irq_set_type(struct meson_gpio_irq_controller *ctl, unsigned int type, u32 *channel_hwirq) { - u32 val = 0; + const struct meson_gpio_irq_params *params = ctl->params; unsigned int idx; + u32 val = 0; idx = meson_gpio_irq_get_channel_idx(ctl, channel_hwirq); type &= IRQ_TYPE_SENSE_MASK; - meson_gpio_irq_update_bits(ctl, REG_EDGE_POL_S4, BIT(idx), 0); + meson_gpio_irq_update_bits(ctl, params->edge_pol_reg, BIT(idx), 0); if (type == IRQ_TYPE_EDGE_BOTH) { - val |= BIT(ctl->params->edge_both_offset + idx); - meson_gpio_irq_update_bits(ctl, REG_EDGE_POL_S4, - BIT(ctl->params->edge_both_offset + idx), val); + val = BIT(ctl->params->edge_both_offset + idx); + meson_gpio_irq_update_bits(ctl, params->edge_pol_reg, val, val); return 0; } @@ -378,7 +404,7 @@ static int meson_s4_gpio_irq_set_type(struct meson_gpio_irq_controller *ctl, if (type & (IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING)) val |= BIT(ctl->params->edge_single_offset + idx); - meson_gpio_irq_update_bits(ctl, REG_EDGE_POL, + meson_gpio_irq_update_bits(ctl, params->edge_pol_reg, BIT(idx) | BIT(12 + idx), val); return 0; }; diff --git a/drivers/irqchip/irq-msi-lib.c b/drivers/irqchip/irq-msi-lib.c index d8e29fc0d406..51464c6257f3 100644 --- a/drivers/irqchip/irq-msi-lib.c +++ b/drivers/irqchip/irq-msi-lib.c @@ -28,6 +28,7 @@ bool msi_lib_init_dev_msi_info(struct device *dev, struct irq_domain *domain, struct msi_domain_info *info) { const struct msi_parent_ops *pops = real_parent->msi_parent_ops; + struct irq_chip *chip = info->chip; u32 required_flags; /* Parent ops available? */ @@ -92,10 +93,10 @@ bool msi_lib_init_dev_msi_info(struct device *dev, struct irq_domain *domain, info->flags |= required_flags; /* Chip updates for all child bus types */ - if (!info->chip->irq_eoi) - info->chip->irq_eoi = irq_chip_eoi_parent; - if (!info->chip->irq_ack) - info->chip->irq_ack = irq_chip_ack_parent; + if (!chip->irq_eoi && (pops->chip_flags & MSI_CHIP_FLAG_SET_EOI)) + chip->irq_eoi = irq_chip_eoi_parent; + if (!chip->irq_ack && (pops->chip_flags & MSI_CHIP_FLAG_SET_ACK)) + chip->irq_ack = irq_chip_ack_parent; /* * The device MSI domain can never have a set affinity callback. It @@ -105,7 +106,7 @@ bool msi_lib_init_dev_msi_info(struct device *dev, struct irq_domain *domain, * device MSI domain aside of mask/unmask which is provided e.g. by * PCI/MSI device domains. */ - info->chip->irq_set_affinity = msi_domain_set_affinity; + chip->irq_set_affinity = msi_domain_set_affinity; return true; } EXPORT_SYMBOL_GPL(msi_lib_init_dev_msi_info); diff --git a/drivers/irqchip/irq-mvebu-gicp.c b/drivers/irqchip/irq-mvebu-gicp.c index 2b6183919ea4..d67f93f6d750 100644 --- a/drivers/irqchip/irq-mvebu-gicp.c +++ b/drivers/irqchip/irq-mvebu-gicp.c @@ -161,6 +161,7 @@ static const struct irq_domain_ops gicp_domain_ops = { static const struct msi_parent_ops gicp_msi_parent_ops = { .supported_flags = GICP_MSI_FLAGS_SUPPORTED, .required_flags = GICP_MSI_FLAGS_REQUIRED, + .chip_flags = MSI_CHIP_FLAG_SET_EOI | MSI_CHIP_FLAG_SET_ACK, .bus_select_token = DOMAIN_BUS_GENERIC_MSI, .bus_select_mask = MATCH_PLATFORM_MSI, .prefix = "GICP-", diff --git a/drivers/irqchip/irq-mvebu-odmi.c b/drivers/irqchip/irq-mvebu-odmi.c index ff19bfd258dc..28f7e81df94f 100644 --- a/drivers/irqchip/irq-mvebu-odmi.c +++ b/drivers/irqchip/irq-mvebu-odmi.c @@ -157,6 +157,7 @@ static const struct irq_domain_ops odmi_domain_ops = { static const struct msi_parent_ops odmi_msi_parent_ops = { .supported_flags = ODMI_MSI_FLAGS_SUPPORTED, .required_flags = ODMI_MSI_FLAGS_REQUIRED, + .chip_flags = MSI_CHIP_FLAG_SET_EOI | MSI_CHIP_FLAG_SET_ACK, .bus_select_token = DOMAIN_BUS_GENERIC_MSI, .bus_select_mask = MATCH_PLATFORM_MSI, .prefix = "ODMI-", diff --git a/drivers/irqchip/irq-mvebu-sei.c b/drivers/irqchip/irq-mvebu-sei.c index 065166ab5dbc..ebd4a9014e8d 100644 --- a/drivers/irqchip/irq-mvebu-sei.c +++ b/drivers/irqchip/irq-mvebu-sei.c @@ -356,6 +356,7 @@ static void mvebu_sei_reset(struct mvebu_sei *sei) static const struct msi_parent_ops sei_msi_parent_ops = { .supported_flags = SEI_MSI_FLAGS_SUPPORTED, .required_flags = SEI_MSI_FLAGS_REQUIRED, + .chip_flags = MSI_CHIP_FLAG_SET_EOI | MSI_CHIP_FLAG_SET_ACK, .bus_select_mask = MATCH_PLATFORM_MSI, .bus_select_token = DOMAIN_BUS_GENERIC_MSI, .prefix = "SEI-", diff --git a/drivers/irqchip/irq-pic32-evic.c b/drivers/irqchip/irq-pic32-evic.c index eb6ca516a166..b546b1036e12 100644 --- a/drivers/irqchip/irq-pic32-evic.c +++ b/drivers/irqchip/irq-pic32-evic.c @@ -291,7 +291,7 @@ static int __init pic32_of_init(struct device_node *node, gc->private = &priv[i]; } - irq_set_default_host(evic_irq_domain); + irq_set_default_domain(evic_irq_domain); /* * External interrupts have software configurable edge polarity. These diff --git a/drivers/irqchip/irq-renesas-rzg2l.c b/drivers/irqchip/irq-renesas-rzg2l.c index 99e27e01b0b1..6a2e41f02446 100644 --- a/drivers/irqchip/irq-renesas-rzg2l.c +++ b/drivers/irqchip/irq-renesas-rzg2l.c @@ -541,43 +541,36 @@ static int rzg2l_irqc_common_init(struct device_node *node, struct device_node * return -ENODEV; parent_domain = irq_find_host(parent); - if (!parent_domain) { - dev_err(&pdev->dev, "cannot find parent domain\n"); - return -ENODEV; - } + if (!parent_domain) + return dev_err_probe(dev, -ENODEV, "cannot find parent domain\n"); - rzg2l_irqc_data = devm_kzalloc(&pdev->dev, sizeof(*rzg2l_irqc_data), GFP_KERNEL); + rzg2l_irqc_data = devm_kzalloc(dev, sizeof(*rzg2l_irqc_data), GFP_KERNEL); if (!rzg2l_irqc_data) return -ENOMEM; rzg2l_irqc_data->irqchip = irq_chip; - rzg2l_irqc_data->base = devm_of_iomap(&pdev->dev, pdev->dev.of_node, 0, NULL); + rzg2l_irqc_data->base = devm_of_iomap(dev, dev->of_node, 0, NULL); if (IS_ERR(rzg2l_irqc_data->base)) return PTR_ERR(rzg2l_irqc_data->base); ret = rzg2l_irqc_parse_interrupts(rzg2l_irqc_data, node); - if (ret) { - dev_err(&pdev->dev, "cannot parse interrupts: %d\n", ret); - return ret; - } - - resetn = devm_reset_control_get_exclusive(&pdev->dev, NULL); - if (IS_ERR(resetn)) - return PTR_ERR(resetn); + if (ret) + return dev_err_probe(dev, ret, "cannot parse interrupts: %d\n", ret); - ret = reset_control_deassert(resetn); - if (ret) { - dev_err(&pdev->dev, "failed to deassert resetn pin, %d\n", ret); - return ret; + resetn = devm_reset_control_get_exclusive_deasserted(dev, NULL); + if (IS_ERR(resetn)) { + return dev_err_probe(dev, PTR_ERR(resetn), + "failed to acquire deasserted reset: %d\n", ret); } - pm_runtime_enable(&pdev->dev); - ret = pm_runtime_resume_and_get(&pdev->dev); - if (ret < 0) { - dev_err(&pdev->dev, "pm_runtime_resume_and_get failed: %d\n", ret); - goto pm_disable; - } + ret = devm_pm_runtime_enable(dev); + if (ret) + return dev_err_probe(dev, ret, "devm_pm_runtime_enable failed: %d\n", ret); + + ret = pm_runtime_resume_and_get(dev); + if (ret) + return dev_err_probe(dev, ret, "pm_runtime_resume_and_get failed: %d\n", ret); raw_spin_lock_init(&rzg2l_irqc_data->lock); @@ -585,9 +578,8 @@ static int rzg2l_irqc_common_init(struct device_node *node, struct device_node * node, &rzg2l_irqc_domain_ops, rzg2l_irqc_data); if (!irq_domain) { - dev_err(&pdev->dev, "failed to add irq domain\n"); - ret = -ENOMEM; - goto pm_put; + pm_runtime_put(dev); + return dev_err_probe(dev, -ENOMEM, "failed to add irq domain\n"); } register_syscore_ops(&rzg2l_irqc_syscore_ops); @@ -604,13 +596,6 @@ static int rzg2l_irqc_common_init(struct device_node *node, struct device_node * dev = NULL; return 0; - -pm_put: - pm_runtime_put(&pdev->dev); -pm_disable: - pm_runtime_disable(&pdev->dev); - reset_control_assert(resetn); - return ret; } static int __init rzg2l_irqc_init(struct device_node *node, diff --git a/drivers/irqchip/irq-renesas-rzv2h.c b/drivers/irqchip/irq-renesas-rzv2h.c index fe2d29e91026..0f0fd7d4dfdf 100644 --- a/drivers/irqchip/irq-renesas-rzv2h.c +++ b/drivers/irqchip/irq-renesas-rzv2h.c @@ -64,11 +64,18 @@ #define ICU_TINT_LEVEL_HIGH 2 #define ICU_TINT_LEVEL_LOW 3 -#define ICU_TSSR_K(tint_nr) ((tint_nr) / 4) -#define ICU_TSSR_TSSEL_N(tint_nr) ((tint_nr) % 4) -#define ICU_TSSR_TSSEL_PREP(tssel, n) ((tssel) << ((n) * 8)) -#define ICU_TSSR_TSSEL_MASK(n) ICU_TSSR_TSSEL_PREP(0x7F, n) -#define ICU_TSSR_TIEN(n) (BIT(7) << ((n) * 8)) +#define ICU_TSSR_TSSEL_PREP(tssel, n, field_width) ((tssel) << ((n) * (field_width))) +#define ICU_TSSR_TSSEL_MASK(n, field_width) \ +({\ + typeof(field_width) (_field_width) = (field_width); \ + ICU_TSSR_TSSEL_PREP((GENMASK(((_field_width) - 2), 0)), (n), _field_width); \ +}) + +#define ICU_TSSR_TIEN(n, field_width) \ +({\ + typeof(field_width) (_field_width) = (field_width); \ + BIT((_field_width) - 1) << ((n) * (_field_width)); \ +}) #define ICU_TITSR_K(tint_nr) ((tint_nr) / 16) #define ICU_TITSR_TITSEL_N(tint_nr) ((tint_nr) % 16) @@ -78,20 +85,36 @@ #define ICU_TINT_EXTRACT_HWIRQ(x) FIELD_GET(GENMASK(15, 0), (x)) #define ICU_TINT_EXTRACT_GPIOINT(x) FIELD_GET(GENMASK(31, 16), (x)) -#define ICU_PB5_TINT 0x55 +#define ICU_RZG3E_TINT_OFFSET 0x800 +#define ICU_RZG3E_TSSEL_MAX_VAL 0x8c +#define ICU_RZV2H_TSSEL_MAX_VAL 0x55 + +/** + * struct rzv2h_hw_info - Interrupt Control Unit controller hardware info structure. + * @tssel_lut: TINT lookup table + * @t_offs: TINT offset + * @max_tssel: TSSEL max value + * @field_width: TSSR field width + */ +struct rzv2h_hw_info { + const u8 *tssel_lut; + u16 t_offs; + u8 max_tssel; + u8 field_width; +}; /** * struct rzv2h_icu_priv - Interrupt Control Unit controller private data structure. * @base: Controller's base address - * @irqchip: Pointer to struct irq_chip * @fwspec: IRQ firmware specific data * @lock: Lock to serialize access to hardware registers + * @info: Pointer to struct rzv2h_hw_info */ struct rzv2h_icu_priv { void __iomem *base; - const struct irq_chip *irqchip; struct irq_fwspec fwspec[ICU_NUM_IRQ]; raw_spinlock_t lock; + const struct rzv2h_hw_info *info; }; static inline struct rzv2h_icu_priv *irq_data_to_priv(struct irq_data *data) @@ -111,7 +134,7 @@ static void rzv2h_icu_eoi(struct irq_data *d) tintirq_nr = hw_irq - ICU_TINT_START; bit = BIT(tintirq_nr); if (!irqd_is_level_type(d)) - writel_relaxed(bit, priv->base + ICU_TSCLR); + writel_relaxed(bit, priv->base + priv->info->t_offs + ICU_TSCLR); } else if (hw_irq >= ICU_IRQ_START) { tintirq_nr = hw_irq - ICU_IRQ_START; bit = BIT(tintirq_nr); @@ -130,21 +153,31 @@ static void rzv2h_tint_irq_endisable(struct irq_data *d, bool enable) struct rzv2h_icu_priv *priv = irq_data_to_priv(d); unsigned int hw_irq = irqd_to_hwirq(d); u32 tint_nr, tssel_n, k, tssr; + u8 nr_tint; if (hw_irq < ICU_TINT_START) return; tint_nr = hw_irq - ICU_TINT_START; - k = ICU_TSSR_K(tint_nr); - tssel_n = ICU_TSSR_TSSEL_N(tint_nr); + nr_tint = 32 / priv->info->field_width; + k = tint_nr / nr_tint; + tssel_n = tint_nr % nr_tint; guard(raw_spinlock)(&priv->lock); - tssr = readl_relaxed(priv->base + ICU_TSSR(k)); + tssr = readl_relaxed(priv->base + priv->info->t_offs + ICU_TSSR(k)); if (enable) - tssr |= ICU_TSSR_TIEN(tssel_n); + tssr |= ICU_TSSR_TIEN(tssel_n, priv->info->field_width); else - tssr &= ~ICU_TSSR_TIEN(tssel_n); - writel_relaxed(tssr, priv->base + ICU_TSSR(k)); + tssr &= ~ICU_TSSR_TIEN(tssel_n, priv->info->field_width); + writel_relaxed(tssr, priv->base + priv->info->t_offs + ICU_TSSR(k)); + + /* + * A glitch in the edge detection circuit can cause a spurious + * interrupt. Clear the status flag after setting the ICU_TSSRk + * registers, which is recommended by the hardware manual as a + * countermeasure. + */ + writel_relaxed(BIT(tint_nr), priv->base + priv->info->t_offs + ICU_TSCLR); } static void rzv2h_icu_irq_disable(struct irq_data *d) @@ -247,8 +280,8 @@ static void rzv2h_clear_tint_int(struct rzv2h_icu_priv *priv, unsigned int hwirq u32 bit = BIT(tint_nr); int k = tint_nr / 16; - tsctr = readl_relaxed(priv->base + ICU_TSCTR); - titsr = readl_relaxed(priv->base + ICU_TITSR(k)); + tsctr = readl_relaxed(priv->base + priv->info->t_offs + ICU_TSCTR); + titsr = readl_relaxed(priv->base + priv->info->t_offs + ICU_TITSR(k)); titsel = ICU_TITSR_TITSEL_GET(titsr, titsel_n); /* @@ -257,7 +290,7 @@ static void rzv2h_clear_tint_int(struct rzv2h_icu_priv *priv, unsigned int hwirq */ if ((tsctr & bit) && ((titsel == ICU_TINT_EDGE_RISING) || (titsel == ICU_TINT_EDGE_FALLING))) - writel_relaxed(bit, priv->base + ICU_TSCLR); + writel_relaxed(bit, priv->base + priv->info->t_offs + ICU_TSCLR); } static int rzv2h_tint_set_type(struct irq_data *d, unsigned int type) @@ -268,6 +301,7 @@ static int rzv2h_tint_set_type(struct irq_data *d, unsigned int type) unsigned int hwirq; u32 tint, sense; int tint_nr; + u8 nr_tint; switch (type & IRQ_TYPE_SENSE_MASK) { case IRQ_TYPE_LEVEL_LOW: @@ -290,39 +324,42 @@ static int rzv2h_tint_set_type(struct irq_data *d, unsigned int type) return -EINVAL; } + priv = irq_data_to_priv(d); tint = (u32)(uintptr_t)irq_data_get_irq_chip_data(d); - if (tint > ICU_PB5_TINT) + if (tint > priv->info->max_tssel) return -EINVAL; - priv = irq_data_to_priv(d); - hwirq = irqd_to_hwirq(d); + if (priv->info->tssel_lut) + tint = priv->info->tssel_lut[tint]; + hwirq = irqd_to_hwirq(d); tint_nr = hwirq - ICU_TINT_START; - tssr_k = ICU_TSSR_K(tint_nr); - tssel_n = ICU_TSSR_TSSEL_N(tint_nr); + nr_tint = 32 / priv->info->field_width; + tssr_k = tint_nr / nr_tint; + tssel_n = tint_nr % nr_tint; + tien = ICU_TSSR_TIEN(tssel_n, priv->info->field_width); titsr_k = ICU_TITSR_K(tint_nr); titsel_n = ICU_TITSR_TITSEL_N(tint_nr); - tien = ICU_TSSR_TIEN(titsel_n); guard(raw_spinlock)(&priv->lock); - tssr = readl_relaxed(priv->base + ICU_TSSR(tssr_k)); - tssr &= ~(ICU_TSSR_TSSEL_MASK(tssel_n) | tien); - tssr |= ICU_TSSR_TSSEL_PREP(tint, tssel_n); + tssr = readl_relaxed(priv->base + priv->info->t_offs + ICU_TSSR(tssr_k)); + tssr &= ~(ICU_TSSR_TSSEL_MASK(tssel_n, priv->info->field_width) | tien); + tssr |= ICU_TSSR_TSSEL_PREP(tint, tssel_n, priv->info->field_width); - writel_relaxed(tssr, priv->base + ICU_TSSR(tssr_k)); + writel_relaxed(tssr, priv->base + priv->info->t_offs + ICU_TSSR(tssr_k)); - titsr = readl_relaxed(priv->base + ICU_TITSR(titsr_k)); + titsr = readl_relaxed(priv->base + priv->info->t_offs + ICU_TITSR(titsr_k)); titsr &= ~ICU_TITSR_TITSEL_MASK(titsel_n); titsr |= ICU_TITSR_TITSEL_PREP(sense, titsel_n); - writel_relaxed(titsr, priv->base + ICU_TITSR(titsr_k)); + writel_relaxed(titsr, priv->base + priv->info->t_offs + ICU_TITSR(titsr_k)); rzv2h_clear_tint_int(priv, hwirq); - writel_relaxed(tssr | tien, priv->base + ICU_TSSR(tssr_k)); + writel_relaxed(tssr | tien, priv->base + priv->info->t_offs + ICU_TSSR(tssr_k)); return 0; } @@ -390,7 +427,7 @@ static int rzv2h_icu_alloc(struct irq_domain *domain, unsigned int virq, unsigne if (hwirq > (ICU_NUM_IRQ - 1)) return -EINVAL; - ret = irq_domain_set_hwirq_and_chip(domain, virq, hwirq, priv->irqchip, + ret = irq_domain_set_hwirq_and_chip(domain, virq, hwirq, &rzv2h_icu_chip, (void *)(uintptr_t)tint); if (ret) return ret; @@ -421,7 +458,13 @@ static int rzv2h_icu_parse_interrupts(struct rzv2h_icu_priv *priv, struct device return 0; } -static int rzv2h_icu_init(struct device_node *node, struct device_node *parent) +static void rzv2h_icu_put_device(void *data) +{ + put_device(data); +} + +static int rzv2h_icu_init_common(struct device_node *node, struct device_node *parent, + const struct rzv2h_hw_info *hw_info) { struct irq_domain *irq_domain, *parent_domain; struct rzv2h_icu_priv *rzv2h_icu_data; @@ -433,50 +476,48 @@ static int rzv2h_icu_init(struct device_node *node, struct device_node *parent) if (!pdev) return -ENODEV; + ret = devm_add_action_or_reset(&pdev->dev, rzv2h_icu_put_device, + &pdev->dev); + if (ret < 0) + return ret; + parent_domain = irq_find_host(parent); if (!parent_domain) { dev_err(&pdev->dev, "cannot find parent domain\n"); - ret = -ENODEV; - goto put_dev; + return -ENODEV; } rzv2h_icu_data = devm_kzalloc(&pdev->dev, sizeof(*rzv2h_icu_data), GFP_KERNEL); - if (!rzv2h_icu_data) { - ret = -ENOMEM; - goto put_dev; - } - - rzv2h_icu_data->irqchip = &rzv2h_icu_chip; + if (!rzv2h_icu_data) + return -ENOMEM; rzv2h_icu_data->base = devm_of_iomap(&pdev->dev, pdev->dev.of_node, 0, NULL); - if (IS_ERR(rzv2h_icu_data->base)) { - ret = PTR_ERR(rzv2h_icu_data->base); - goto put_dev; - } + if (IS_ERR(rzv2h_icu_data->base)) + return PTR_ERR(rzv2h_icu_data->base); ret = rzv2h_icu_parse_interrupts(rzv2h_icu_data, node); if (ret) { dev_err(&pdev->dev, "cannot parse interrupts: %d\n", ret); - goto put_dev; + return ret; } - resetn = devm_reset_control_get_exclusive(&pdev->dev, NULL); + resetn = devm_reset_control_get_exclusive_deasserted(&pdev->dev, NULL); if (IS_ERR(resetn)) { ret = PTR_ERR(resetn); - goto put_dev; + dev_err(&pdev->dev, "failed to acquire deasserted reset: %d\n", ret); + return ret; } - ret = reset_control_deassert(resetn); - if (ret) { - dev_err(&pdev->dev, "failed to deassert resetn pin, %d\n", ret); - goto put_dev; + ret = devm_pm_runtime_enable(&pdev->dev); + if (ret < 0) { + dev_err(&pdev->dev, "devm_pm_runtime_enable failed, %d\n", ret); + return ret; } - pm_runtime_enable(&pdev->dev); ret = pm_runtime_resume_and_get(&pdev->dev); if (ret < 0) { dev_err(&pdev->dev, "pm_runtime_resume_and_get failed: %d\n", ret); - goto pm_disable; + return ret; } raw_spin_lock_init(&rzv2h_icu_data->lock); @@ -489,6 +530,8 @@ static int rzv2h_icu_init(struct device_node *node, struct device_node *parent) goto pm_put; } + rzv2h_icu_data->info = hw_info; + /* * coccicheck complains about a missing put_device call before returning, but it's a false * positive. We still need &pdev->dev after successfully returning from this function. @@ -497,16 +540,61 @@ static int rzv2h_icu_init(struct device_node *node, struct device_node *parent) pm_put: pm_runtime_put(&pdev->dev); -pm_disable: - pm_runtime_disable(&pdev->dev); - reset_control_assert(resetn); -put_dev: - put_device(&pdev->dev); return ret; } +/* Mapping based on port index on Table 4.2-6 and TSSEL bits on Table 4.6-4 */ +static const u8 rzg3e_tssel_lut[] = { + 81, 82, 83, 84, 85, 86, 87, 88, /* P00-P07 */ + 89, 90, 91, 92, 93, 94, 95, 96, /* P10-P17 */ + 111, 112, /* P20-P21 */ + 97, 98, 99, 100, 101, 102, 103, 104, /* P30-P37 */ + 105, 106, 107, 108, 109, 110, /* P40-P45 */ + 113, 114, 115, 116, 117, 118, 119, /* P50-P56 */ + 120, 121, 122, 123, 124, 125, 126, /* P60-P66 */ + 127, 128, 129, 130, 131, 132, 133, 134, /* P70-P77 */ + 135, 136, 137, 138, 139, 140, /* P80-P85 */ + 43, 44, 45, 46, 47, 48, 49, 50, /* PA0-PA7 */ + 51, 52, 53, 54, 55, 56, 57, 58, /* PB0-PB7 */ + 59, 60, 61, /* PC0-PC2 */ + 62, 63, 64, 65, 66, 67, 68, 69, /* PD0-PD7 */ + 70, 71, 72, 73, 74, 75, 76, 77, /* PE0-PE7 */ + 78, 79, 80, /* PF0-PF2 */ + 25, 26, 27, 28, 29, 30, 31, 32, /* PG0-PG7 */ + 33, 34, 35, 36, 37, 38, /* PH0-PH5 */ + 4, 5, 6, 7, 8, /* PJ0-PJ4 */ + 39, 40, 41, 42, /* PK0-PK3 */ + 9, 10, 11, 12, 21, 22, 23, 24, /* PL0-PL7 */ + 13, 14, 15, 16, 17, 18, 19, 20, /* PM0-PM7 */ + 0, 1, 2, 3 /* PS0-PS3 */ +}; + +static const struct rzv2h_hw_info rzg3e_hw_params = { + .tssel_lut = rzg3e_tssel_lut, + .t_offs = ICU_RZG3E_TINT_OFFSET, + .max_tssel = ICU_RZG3E_TSSEL_MAX_VAL, + .field_width = 16, +}; + +static const struct rzv2h_hw_info rzv2h_hw_params = { + .t_offs = 0, + .max_tssel = ICU_RZV2H_TSSEL_MAX_VAL, + .field_width = 8, +}; + +static int rzg3e_icu_init(struct device_node *node, struct device_node *parent) +{ + return rzv2h_icu_init_common(node, parent, &rzg3e_hw_params); +} + +static int rzv2h_icu_init(struct device_node *node, struct device_node *parent) +{ + return rzv2h_icu_init_common(node, parent, &rzv2h_hw_params); +} + IRQCHIP_PLATFORM_DRIVER_BEGIN(rzv2h_icu) +IRQCHIP_MATCH("renesas,r9a09g047-icu", rzg3e_icu_init) IRQCHIP_MATCH("renesas,r9a09g057-icu", rzv2h_icu_init) IRQCHIP_PLATFORM_DRIVER_END(rzv2h_icu) MODULE_AUTHOR("Fabrizio Castro <fabrizio.castro.jz@renesas.com>"); diff --git a/drivers/irqchip/irq-riscv-aplic-direct.c b/drivers/irqchip/irq-riscv-aplic-direct.c index 7cd6b646774b..205ad61d15e4 100644 --- a/drivers/irqchip/irq-riscv-aplic-direct.c +++ b/drivers/irqchip/irq-riscv-aplic-direct.c @@ -31,7 +31,7 @@ struct aplic_direct { }; struct aplic_idc { - unsigned int hart_index; + u32 hart_index; void __iomem *regs; struct aplic_direct *direct; }; @@ -219,6 +219,20 @@ static int aplic_direct_parse_parent_hwirq(struct device *dev, u32 index, return 0; } +static int aplic_direct_get_hart_index(struct device *dev, u32 logical_index, + u32 *hart_index) +{ + const char *prop_hart_index = "riscv,hart-indexes"; + struct device_node *np = to_of_node(dev->fwnode); + + if (!np || !of_property_present(np, prop_hart_index)) { + *hart_index = logical_index; + return 0; + } + + return of_property_read_u32_index(np, prop_hart_index, logical_index, hart_index); +} + int aplic_direct_setup(struct device *dev, void __iomem *regs) { int i, j, rc, cpu, current_cpu, setup_count = 0; @@ -265,8 +279,12 @@ int aplic_direct_setup(struct device *dev, void __iomem *regs) cpumask_set_cpu(cpu, &direct->lmask); idc = per_cpu_ptr(&aplic_idcs, cpu); - idc->hart_index = i; - idc->regs = priv->regs + APLIC_IDC_BASE + i * APLIC_IDC_SIZE; + rc = aplic_direct_get_hart_index(dev, i, &idc->hart_index); + if (rc) { + dev_warn(dev, "hart index not found for IDC%d\n", i); + continue; + } + idc->regs = priv->regs + APLIC_IDC_BASE + idc->hart_index * APLIC_IDC_SIZE; idc->direct = direct; aplic_idc_set_delivery(idc, true); diff --git a/drivers/irqchip/irq-riscv-imsic-early.c b/drivers/irqchip/irq-riscv-imsic-early.c index 275df5005705..d9ae87808651 100644 --- a/drivers/irqchip/irq-riscv-imsic-early.c +++ b/drivers/irqchip/irq-riscv-imsic-early.c @@ -73,10 +73,16 @@ static int __init imsic_ipi_domain_init(void) { return 0; } static void imsic_handle_irq(struct irq_desc *desc) { struct irq_chip *chip = irq_desc_get_chip(desc); - int err, cpu = smp_processor_id(); + int cpu = smp_processor_id(); struct imsic_vector *vec; unsigned long local_id; + /* + * Process pending local synchronization instead of waiting + * for per-CPU local timer to expire. + */ + imsic_local_sync_all(false); + chained_irq_enter(chip, desc); while ((local_id = csr_swap(CSR_TOPEI, 0))) { @@ -97,9 +103,7 @@ static void imsic_handle_irq(struct irq_desc *desc) continue; } - err = generic_handle_domain_irq(imsic->base_domain, vec->hwirq); - if (unlikely(err)) - pr_warn_ratelimited("hwirq 0x%x mapping not found\n", vec->hwirq); + generic_handle_irq(vec->irq); } chained_irq_exit(chip, desc); @@ -120,7 +124,7 @@ static int imsic_starting_cpu(unsigned int cpu) * Interrupts identities might have been enabled/disabled while * this CPU was not running so sync-up local enable/disable state. */ - imsic_local_sync_all(); + imsic_local_sync_all(true); /* Enable local interrupt delivery */ imsic_local_delivery(true); diff --git a/drivers/irqchip/irq-riscv-imsic-platform.c b/drivers/irqchip/irq-riscv-imsic-platform.c index c708780e8760..b8ae67c25b37 100644 --- a/drivers/irqchip/irq-riscv-imsic-platform.c +++ b/drivers/irqchip/irq-riscv-imsic-platform.c @@ -20,6 +20,7 @@ #include <linux/spinlock.h> #include <linux/smp.h> +#include "irq-msi-lib.h" #include "irq-riscv-imsic-state.h" static bool imsic_cpu_page_phys(unsigned int cpu, unsigned int guest_index, @@ -63,6 +64,11 @@ static int imsic_irq_retrigger(struct irq_data *d) return 0; } +static void imsic_irq_ack(struct irq_data *d) +{ + irq_move_irq(d); +} + static void imsic_irq_compose_vector_msg(struct imsic_vector *vec, struct msi_msg *msg) { phys_addr_t msi_addr; @@ -96,9 +102,23 @@ static int imsic_irq_set_affinity(struct irq_data *d, const struct cpumask *mask bool force) { struct imsic_vector *old_vec, *new_vec; - struct irq_data *pd = d->parent_data; + struct imsic_vector tmp_vec; + + /* + * Requirements for the downstream irqdomains (or devices): + * + * 1) Downstream irqdomains (or devices) with atomic MSI update can + * happily do imsic_irq_set_affinity() in the process-context on + * any CPU so the irqchip of such irqdomains must not set the + * IRQCHIP_MOVE_DEFERRED flag. + * + * 2) Downstream irqdomains (or devices) with non-atomic MSI update + * must use imsic_irq_set_affinity() in nterrupt-context upon + * the next device interrupt so the irqchip of such irqdomains + * must set the IRQCHIP_MOVE_DEFERRED flag. + */ - old_vec = irq_data_get_irq_chip_data(pd); + old_vec = irq_data_get_irq_chip_data(d); if (WARN_ON(!old_vec)) return -ENOENT; @@ -111,34 +131,95 @@ static int imsic_irq_set_affinity(struct irq_data *d, const struct cpumask *mask return -EBUSY; /* Get a new vector on the desired set of CPUs */ - new_vec = imsic_vector_alloc(old_vec->hwirq, mask_val); + new_vec = imsic_vector_alloc(old_vec->irq, mask_val); if (!new_vec) return -ENOSPC; + /* + * Device having non-atomic MSI update might see an intermediate + * state when changing target IMSIC vector from one CPU to another. + * + * To avoid losing interrupt to such intermediate state, do the + * following (just like x86 APIC): + * + * 1) First write a temporary IMSIC vector to the device which + * has MSI address same as the old IMSIC vector but MSI data + * matches the new IMSIC vector. + * + * 2) Next write the new IMSIC vector to the device. + * + * Based on the above, __imsic_local_sync() must check pending + * status of both old MSI data and new MSI data on the old CPU. + */ + if (!irq_can_move_in_process_context(d) && + new_vec->local_id != old_vec->local_id) { + /* Setup temporary vector */ + tmp_vec.cpu = old_vec->cpu; + tmp_vec.local_id = new_vec->local_id; + + /* Point device to the temporary vector */ + imsic_msi_update_msg(irq_get_irq_data(d->irq), &tmp_vec); + } + /* Point device to the new vector */ - imsic_msi_update_msg(d, new_vec); + imsic_msi_update_msg(irq_get_irq_data(d->irq), new_vec); /* Update irq descriptors with the new vector */ - pd->chip_data = new_vec; + d->chip_data = new_vec; - /* Update effective affinity of parent irq data */ - irq_data_update_effective_affinity(pd, cpumask_of(new_vec->cpu)); + /* Update effective affinity */ + irq_data_update_effective_affinity(d, cpumask_of(new_vec->cpu)); /* Move state of the old vector to the new vector */ imsic_vector_move(old_vec, new_vec); return IRQ_SET_MASK_OK_DONE; } + +static void imsic_irq_force_complete_move(struct irq_data *d) +{ + struct imsic_vector *mvec, *vec = irq_data_get_irq_chip_data(d); + unsigned int cpu = smp_processor_id(); + + if (WARN_ON(!vec)) + return; + + /* Do nothing if there is no in-flight move */ + mvec = imsic_vector_get_move(vec); + if (!mvec) + return; + + /* Do nothing if the old IMSIC vector does not belong to current CPU */ + if (mvec->cpu != cpu) + return; + + /* + * The best we can do is force cleanup the old IMSIC vector. + * + * The challenges over here are same as x86 vector domain so + * refer to the comments in irq_force_complete_move() function + * implemented at arch/x86/kernel/apic/vector.c. + */ + + /* Force cleanup in-flight move */ + pr_info("IRQ fixup: irq %d move in progress, old vector cpu %d local_id %d\n", + d->irq, mvec->cpu, mvec->local_id); + imsic_vector_force_move_cleanup(vec); +} #endif static struct irq_chip imsic_irq_base_chip = { - .name = "IMSIC", - .irq_mask = imsic_irq_mask, - .irq_unmask = imsic_irq_unmask, - .irq_retrigger = imsic_irq_retrigger, - .irq_compose_msi_msg = imsic_irq_compose_msg, - .flags = IRQCHIP_SKIP_SET_WAKE | - IRQCHIP_MASK_ON_SUSPEND, + .name = "IMSIC", + .irq_mask = imsic_irq_mask, + .irq_unmask = imsic_irq_unmask, +#ifdef CONFIG_SMP + .irq_set_affinity = imsic_irq_set_affinity, + .irq_force_complete_move = imsic_irq_force_complete_move, +#endif + .irq_retrigger = imsic_irq_retrigger, + .irq_ack = imsic_irq_ack, + .irq_compose_msi_msg = imsic_irq_compose_msg, + .flags = IRQCHIP_SKIP_SET_WAKE | IRQCHIP_MASK_ON_SUSPEND, }; static int imsic_irq_domain_alloc(struct irq_domain *domain, unsigned int virq, @@ -155,7 +236,7 @@ static int imsic_irq_domain_alloc(struct irq_domain *domain, unsigned int virq, return -ENOSPC; irq_domain_set_info(domain, virq, virq, &imsic_irq_base_chip, vec, - handle_simple_irq, NULL, NULL); + handle_edge_irq, NULL, NULL); irq_set_noprobe(virq); irq_set_affinity(virq, cpu_online_mask); irq_data_update_effective_affinity(irq_get_irq_data(virq), cpumask_of(vec->cpu)); @@ -172,22 +253,6 @@ static void imsic_irq_domain_free(struct irq_domain *domain, unsigned int virq, irq_domain_free_irqs_parent(domain, virq, nr_irqs); } -static int imsic_irq_domain_select(struct irq_domain *domain, struct irq_fwspec *fwspec, - enum irq_domain_bus_token bus_token) -{ - const struct msi_parent_ops *ops = domain->msi_parent_ops; - u32 busmask = BIT(bus_token); - - if (fwspec->fwnode != domain->fwnode || fwspec->param_count != 0) - return 0; - - /* Handle pure domain searches */ - if (bus_token == ops->bus_select_token) - return 1; - - return !!(ops->bus_select_mask & busmask); -} - #ifdef CONFIG_GENERIC_IRQ_DEBUGFS static void imsic_irq_debug_show(struct seq_file *m, struct irq_domain *d, struct irq_data *irqd, int ind) @@ -204,107 +269,37 @@ static void imsic_irq_debug_show(struct seq_file *m, struct irq_domain *d, static const struct irq_domain_ops imsic_base_domain_ops = { .alloc = imsic_irq_domain_alloc, .free = imsic_irq_domain_free, - .select = imsic_irq_domain_select, + .select = msi_lib_irq_domain_select, #ifdef CONFIG_GENERIC_IRQ_DEBUGFS .debug_show = imsic_irq_debug_show, #endif }; -#ifdef CONFIG_RISCV_IMSIC_PCI - -static void imsic_pci_mask_irq(struct irq_data *d) -{ - pci_msi_mask_irq(d); - irq_chip_mask_parent(d); -} - -static void imsic_pci_unmask_irq(struct irq_data *d) +static bool imsic_init_dev_msi_info(struct device *dev, struct irq_domain *domain, + struct irq_domain *real_parent, struct msi_domain_info *info) { - irq_chip_unmask_parent(d); - pci_msi_unmask_irq(d); -} - -#define MATCH_PCI_MSI BIT(DOMAIN_BUS_PCI_MSI) - -#else - -#define MATCH_PCI_MSI 0 - -#endif - -static bool imsic_init_dev_msi_info(struct device *dev, - struct irq_domain *domain, - struct irq_domain *real_parent, - struct msi_domain_info *info) -{ - const struct msi_parent_ops *pops = real_parent->msi_parent_ops; - - /* MSI parent domain specific settings */ - switch (real_parent->bus_token) { - case DOMAIN_BUS_NEXUS: - if (WARN_ON_ONCE(domain != real_parent)) - return false; -#ifdef CONFIG_SMP - info->chip->irq_set_affinity = imsic_irq_set_affinity; -#endif - break; - default: - WARN_ON_ONCE(1); + if (!msi_lib_init_dev_msi_info(dev, domain, real_parent, info)) return false; - } - /* Is the target supported? */ switch (info->bus_token) { -#ifdef CONFIG_RISCV_IMSIC_PCI case DOMAIN_BUS_PCI_DEVICE_MSI: case DOMAIN_BUS_PCI_DEVICE_MSIX: - info->chip->irq_mask = imsic_pci_mask_irq; - info->chip->irq_unmask = imsic_pci_unmask_irq; - break; -#endif - case DOMAIN_BUS_DEVICE_MSI: - /* - * Per-device MSI should never have any MSI feature bits - * set. It's sole purpose is to create a dumb interrupt - * chip which has a device specific irq_write_msi_msg() - * callback. - */ - if (WARN_ON_ONCE(info->flags)) - return false; - - /* Core managed MSI descriptors */ - info->flags |= MSI_FLAG_ALLOC_SIMPLE_MSI_DESCS | - MSI_FLAG_FREE_MSI_DESCS; - break; - case DOMAIN_BUS_WIRED_TO_MSI: + info->chip->flags |= IRQCHIP_MOVE_DEFERRED; break; default: - WARN_ON_ONCE(1); - return false; + break; } - /* Use hierarchial chip operations re-trigger */ - info->chip->irq_retrigger = irq_chip_retrigger_hierarchy; - - /* - * Mask out the domain specific MSI feature flags which are not - * supported by the real parent. - */ - info->flags &= pops->supported_flags; - - /* Enforce the required flags */ - info->flags |= pops->required_flags; - return true; } -#define MATCH_PLATFORM_MSI BIT(DOMAIN_BUS_PLATFORM_MSI) - static const struct msi_parent_ops imsic_msi_parent_ops = { .supported_flags = MSI_GENERIC_FLAGS_MASK | MSI_FLAG_PCI_MSIX, .required_flags = MSI_FLAG_USE_DEF_DOM_OPS | - MSI_FLAG_USE_DEF_CHIP_OPS, + MSI_FLAG_USE_DEF_CHIP_OPS | + MSI_FLAG_PCI_MSI_MASK_PARENT, + .chip_flags = MSI_CHIP_FLAG_SET_ACK, .bus_select_token = DOMAIN_BUS_NEXUS, .bus_select_mask = MATCH_PCI_MSI | MATCH_PLATFORM_MSI, .init_dev_msi_info = imsic_init_dev_msi_info, diff --git a/drivers/irqchip/irq-riscv-imsic-state.c b/drivers/irqchip/irq-riscv-imsic-state.c index b97e6cd89ed7..bdf5cd2037f2 100644 --- a/drivers/irqchip/irq-riscv-imsic-state.c +++ b/drivers/irqchip/irq-riscv-imsic-state.c @@ -124,10 +124,11 @@ void __imsic_eix_update(unsigned long base_id, unsigned long num_id, bool pend, } } -static void __imsic_local_sync(struct imsic_local_priv *lpriv) +static bool __imsic_local_sync(struct imsic_local_priv *lpriv) { - struct imsic_local_config *mlocal; - struct imsic_vector *vec, *mvec; + struct imsic_local_config *tlocal, *mlocal; + struct imsic_vector *vec, *tvec, *mvec; + bool ret = true; int i; lockdep_assert_held(&lpriv->lock); @@ -143,35 +144,97 @@ static void __imsic_local_sync(struct imsic_local_priv *lpriv) __imsic_id_clear_enable(i); /* - * If the ID was being moved to a new ID on some other CPU - * then we can get a MSI during the movement so check the - * ID pending bit and re-trigger the new ID on other CPU - * using MMIO write. + * Clear the previous vector pointer of the new vector only + * after the movement is complete on the old CPU. */ - mvec = READ_ONCE(vec->move); - WRITE_ONCE(vec->move, NULL); - if (mvec && mvec != vec) { - if (__imsic_id_read_clear_pending(i)) { + mvec = READ_ONCE(vec->move_prev); + if (mvec) { + /* + * If the old vector has not been updated then + * try again in the next sync-up call. + */ + if (READ_ONCE(mvec->move_next)) { + ret = false; + continue; + } + + WRITE_ONCE(vec->move_prev, NULL); + } + + /* + * If a vector was being moved to a new vector on some other + * CPU then we can get a MSI during the movement so check the + * ID pending bit and re-trigger the new ID on other CPU using + * MMIO write. + */ + mvec = READ_ONCE(vec->move_next); + if (mvec) { + /* + * Devices having non-atomic MSI update might see + * an intermediate state so check both old ID and + * new ID for pending interrupts. + * + * For details, see imsic_irq_set_affinity(). + */ + tvec = vec->local_id == mvec->local_id ? + NULL : &lpriv->vectors[mvec->local_id]; + + if (tvec && !irq_can_move_in_process_context(irq_get_irq_data(vec->irq)) && + __imsic_id_read_clear_pending(tvec->local_id)) { + /* Retrigger temporary vector if it was already in-use */ + if (READ_ONCE(tvec->enable)) { + tlocal = per_cpu_ptr(imsic->global.local, tvec->cpu); + writel_relaxed(tvec->local_id, tlocal->msi_va); + } + + mlocal = per_cpu_ptr(imsic->global.local, mvec->cpu); + writel_relaxed(mvec->local_id, mlocal->msi_va); + } + + if (__imsic_id_read_clear_pending(vec->local_id)) { mlocal = per_cpu_ptr(imsic->global.local, mvec->cpu); writel_relaxed(mvec->local_id, mlocal->msi_va); } - imsic_vector_free(&lpriv->vectors[i]); + WRITE_ONCE(vec->move_next, NULL); + imsic_vector_free(vec); } skip: bitmap_clear(lpriv->dirty_bitmap, i, 1); } + + return ret; } -void imsic_local_sync_all(void) +#ifdef CONFIG_SMP +static void __imsic_local_timer_start(struct imsic_local_priv *lpriv) +{ + lockdep_assert_held(&lpriv->lock); + + if (!timer_pending(&lpriv->timer)) { + lpriv->timer.expires = jiffies + 1; + add_timer_on(&lpriv->timer, smp_processor_id()); + } +} +#else +static inline void __imsic_local_timer_start(struct imsic_local_priv *lpriv) +{ +} +#endif + +void imsic_local_sync_all(bool force_all) { struct imsic_local_priv *lpriv = this_cpu_ptr(imsic->lpriv); unsigned long flags; raw_spin_lock_irqsave(&lpriv->lock, flags); - bitmap_fill(lpriv->dirty_bitmap, imsic->global.nr_ids + 1); - __imsic_local_sync(lpriv); + + if (force_all) + bitmap_fill(lpriv->dirty_bitmap, imsic->global.nr_ids + 1); + if (!__imsic_local_sync(lpriv)) + __imsic_local_timer_start(lpriv); + raw_spin_unlock_irqrestore(&lpriv->lock, flags); } @@ -190,12 +253,7 @@ void imsic_local_delivery(bool enable) #ifdef CONFIG_SMP static void imsic_local_timer_callback(struct timer_list *timer) { - struct imsic_local_priv *lpriv = this_cpu_ptr(imsic->lpriv); - unsigned long flags; - - raw_spin_lock_irqsave(&lpriv->lock, flags); - __imsic_local_sync(lpriv); - raw_spin_unlock_irqrestore(&lpriv->lock, flags); + imsic_local_sync_all(false); } static void __imsic_remote_sync(struct imsic_local_priv *lpriv, unsigned int cpu) @@ -216,14 +274,11 @@ static void __imsic_remote_sync(struct imsic_local_priv *lpriv, unsigned int cpu */ if (cpu_online(cpu)) { if (cpu == smp_processor_id()) { - __imsic_local_sync(lpriv); - return; + if (__imsic_local_sync(lpriv)) + return; } - if (!timer_pending(&lpriv->timer)) { - lpriv->timer.expires = jiffies + 1; - add_timer_on(&lpriv->timer, cpu); - } + __imsic_local_timer_start(lpriv); } } #else @@ -278,8 +333,26 @@ void imsic_vector_unmask(struct imsic_vector *vec) raw_spin_unlock(&lpriv->lock); } -static bool imsic_vector_move_update(struct imsic_local_priv *lpriv, struct imsic_vector *vec, - bool new_enable, struct imsic_vector *new_move) +void imsic_vector_force_move_cleanup(struct imsic_vector *vec) +{ + struct imsic_local_priv *lpriv; + struct imsic_vector *mvec; + unsigned long flags; + + lpriv = per_cpu_ptr(imsic->lpriv, vec->cpu); + raw_spin_lock_irqsave(&lpriv->lock, flags); + + mvec = READ_ONCE(vec->move_prev); + WRITE_ONCE(vec->move_prev, NULL); + if (mvec) + imsic_vector_free(mvec); + + raw_spin_unlock_irqrestore(&lpriv->lock, flags); +} + +static bool imsic_vector_move_update(struct imsic_local_priv *lpriv, + struct imsic_vector *vec, bool is_old_vec, + bool new_enable, struct imsic_vector *move_vec) { unsigned long flags; bool enabled; @@ -289,7 +362,10 @@ static bool imsic_vector_move_update(struct imsic_local_priv *lpriv, struct imsi /* Update enable and move details */ enabled = READ_ONCE(vec->enable); WRITE_ONCE(vec->enable, new_enable); - WRITE_ONCE(vec->move, new_move); + if (is_old_vec) + WRITE_ONCE(vec->move_next, move_vec); + else + WRITE_ONCE(vec->move_prev, move_vec); /* Mark the vector as dirty and synchronize */ bitmap_set(lpriv->dirty_bitmap, vec->local_id, 1); @@ -322,8 +398,8 @@ void imsic_vector_move(struct imsic_vector *old_vec, struct imsic_vector *new_ve * interrupt on the old vector while device was being moved * to the new vector. */ - enabled = imsic_vector_move_update(old_lpriv, old_vec, false, new_vec); - imsic_vector_move_update(new_lpriv, new_vec, enabled, new_vec); + enabled = imsic_vector_move_update(old_lpriv, old_vec, true, false, new_vec); + imsic_vector_move_update(new_lpriv, new_vec, false, enabled, old_vec); } #ifdef CONFIG_GENERIC_IRQ_DEBUGFS @@ -368,7 +444,7 @@ struct imsic_vector *imsic_vector_from_local_id(unsigned int cpu, unsigned int l return &lpriv->vectors[local_id]; } -struct imsic_vector *imsic_vector_alloc(unsigned int hwirq, const struct cpumask *mask) +struct imsic_vector *imsic_vector_alloc(unsigned int irq, const struct cpumask *mask) { struct imsic_vector *vec = NULL; struct imsic_local_priv *lpriv; @@ -384,9 +460,10 @@ struct imsic_vector *imsic_vector_alloc(unsigned int hwirq, const struct cpumask lpriv = per_cpu_ptr(imsic->lpriv, cpu); vec = &lpriv->vectors[local_id]; - vec->hwirq = hwirq; + vec->irq = irq; vec->enable = false; - vec->move = NULL; + vec->move_next = NULL; + vec->move_prev = NULL; return vec; } @@ -396,7 +473,7 @@ void imsic_vector_free(struct imsic_vector *vec) unsigned long flags; raw_spin_lock_irqsave(&imsic->matrix_lock, flags); - vec->hwirq = UINT_MAX; + vec->irq = 0; irq_matrix_free(imsic->matrix, vec->cpu, vec->local_id, false); raw_spin_unlock_irqrestore(&imsic->matrix_lock, flags); } @@ -455,7 +532,7 @@ static int __init imsic_local_init(void) vec = &lpriv->vectors[i]; vec->cpu = cpu; vec->local_id = i; - vec->hwirq = UINT_MAX; + vec->irq = 0; } } diff --git a/drivers/irqchip/irq-riscv-imsic-state.h b/drivers/irqchip/irq-riscv-imsic-state.h index 391e44280827..3202ffa4e849 100644 --- a/drivers/irqchip/irq-riscv-imsic-state.h +++ b/drivers/irqchip/irq-riscv-imsic-state.h @@ -20,10 +20,11 @@ struct imsic_vector { unsigned int cpu; unsigned int local_id; /* Details saved by driver in the vector */ - unsigned int hwirq; + unsigned int irq; /* Details accessed using local lock held */ bool enable; - struct imsic_vector *move; + struct imsic_vector *move_next; + struct imsic_vector *move_prev; }; struct imsic_local_priv { @@ -74,7 +75,7 @@ static inline void __imsic_id_clear_enable(unsigned long id) __imsic_eix_update(id, 1, false, false); } -void imsic_local_sync_all(void); +void imsic_local_sync_all(bool force_all); void imsic_local_delivery(bool enable); void imsic_vector_mask(struct imsic_vector *vec); @@ -87,14 +88,15 @@ static inline bool imsic_vector_isenabled(struct imsic_vector *vec) static inline struct imsic_vector *imsic_vector_get_move(struct imsic_vector *vec) { - return READ_ONCE(vec->move); + return READ_ONCE(vec->move_prev); } +void imsic_vector_force_move_cleanup(struct imsic_vector *vec); void imsic_vector_move(struct imsic_vector *old_vec, struct imsic_vector *new_vec); struct imsic_vector *imsic_vector_from_local_id(unsigned int cpu, unsigned int local_id); -struct imsic_vector *imsic_vector_alloc(unsigned int hwirq, const struct cpumask *mask); +struct imsic_vector *imsic_vector_alloc(unsigned int irq, const struct cpumask *mask); void imsic_vector_free(struct imsic_vector *vector); void imsic_vector_debug_show(struct seq_file *m, struct imsic_vector *vec, int ind); diff --git a/drivers/irqchip/irq-sg2042-msi.c b/drivers/irqchip/irq-sg2042-msi.c new file mode 100644 index 000000000000..375b55aa0acd --- /dev/null +++ b/drivers/irqchip/irq-sg2042-msi.c @@ -0,0 +1,250 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * SG2042 MSI Controller + * + * Copyright (C) 2024 Sophgo Technology Inc. + * Copyright (C) 2024 Chen Wang <unicorn_wang@outlook.com> + */ + +#include <linux/cleanup.h> +#include <linux/io.h> +#include <linux/irq.h> +#include <linux/irqdomain.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/msi.h> +#include <linux/platform_device.h> +#include <linux/property.h> +#include <linux/slab.h> + +#include "irq-msi-lib.h" + +#define SG2042_MAX_MSI_VECTOR 32 + +struct sg2042_msi_chipdata { + void __iomem *reg_clr; // clear reg, see TRM, 10.1.33, GP_INTR0_CLR + + phys_addr_t doorbell_addr; // see TRM, 10.1.32, GP_INTR0_SET + + u32 irq_first; // The vector number that MSIs starts + u32 num_irqs; // The number of vectors for MSIs + + DECLARE_BITMAP(msi_map, SG2042_MAX_MSI_VECTOR); + struct mutex msi_map_lock; // lock for msi_map +}; + +static int sg2042_msi_allocate_hwirq(struct sg2042_msi_chipdata *data, int num_req) +{ + int first; + + guard(mutex)(&data->msi_map_lock); + first = bitmap_find_free_region(data->msi_map, data->num_irqs, + get_count_order(num_req)); + return first >= 0 ? first : -ENOSPC; +} + +static void sg2042_msi_free_hwirq(struct sg2042_msi_chipdata *data, int hwirq, int num_req) +{ + guard(mutex)(&data->msi_map_lock); + bitmap_release_region(data->msi_map, hwirq, get_count_order(num_req)); +} + +static void sg2042_msi_irq_ack(struct irq_data *d) +{ + struct sg2042_msi_chipdata *data = irq_data_get_irq_chip_data(d); + int bit_off = d->hwirq; + + writel(1 << bit_off, data->reg_clr); + + irq_chip_ack_parent(d); +} + +static void sg2042_msi_irq_compose_msi_msg(struct irq_data *d, struct msi_msg *msg) +{ + struct sg2042_msi_chipdata *data = irq_data_get_irq_chip_data(d); + + msg->address_hi = upper_32_bits(data->doorbell_addr); + msg->address_lo = lower_32_bits(data->doorbell_addr); + msg->data = 1 << d->hwirq; +} + +static const struct irq_chip sg2042_msi_middle_irq_chip = { + .name = "SG2042 MSI", + .irq_ack = sg2042_msi_irq_ack, + .irq_mask = irq_chip_mask_parent, + .irq_unmask = irq_chip_unmask_parent, +#ifdef CONFIG_SMP + .irq_set_affinity = irq_chip_set_affinity_parent, +#endif + .irq_compose_msi_msg = sg2042_msi_irq_compose_msi_msg, +}; + +static int sg2042_msi_parent_domain_alloc(struct irq_domain *domain, unsigned int virq, int hwirq) +{ + struct sg2042_msi_chipdata *data = domain->host_data; + struct irq_fwspec fwspec; + struct irq_data *d; + int ret; + + fwspec.fwnode = domain->parent->fwnode; + fwspec.param_count = 2; + fwspec.param[0] = data->irq_first + hwirq; + fwspec.param[1] = IRQ_TYPE_EDGE_RISING; + + ret = irq_domain_alloc_irqs_parent(domain, virq, 1, &fwspec); + if (ret) + return ret; + + d = irq_domain_get_irq_data(domain->parent, virq); + return d->chip->irq_set_type(d, IRQ_TYPE_EDGE_RISING); +} + +static int sg2042_msi_middle_domain_alloc(struct irq_domain *domain, unsigned int virq, + unsigned int nr_irqs, void *args) +{ + struct sg2042_msi_chipdata *data = domain->host_data; + int hwirq, err, i; + + hwirq = sg2042_msi_allocate_hwirq(data, nr_irqs); + if (hwirq < 0) + return hwirq; + + for (i = 0; i < nr_irqs; i++) { + err = sg2042_msi_parent_domain_alloc(domain, virq + i, hwirq + i); + if (err) + goto err_hwirq; + + irq_domain_set_hwirq_and_chip(domain, virq + i, hwirq + i, + &sg2042_msi_middle_irq_chip, data); + } + + return 0; + +err_hwirq: + sg2042_msi_free_hwirq(data, hwirq, nr_irqs); + irq_domain_free_irqs_parent(domain, virq, i); + + return err; +} + +static void sg2042_msi_middle_domain_free(struct irq_domain *domain, unsigned int virq, + unsigned int nr_irqs) +{ + struct irq_data *d = irq_domain_get_irq_data(domain, virq); + struct sg2042_msi_chipdata *data = irq_data_get_irq_chip_data(d); + + irq_domain_free_irqs_parent(domain, virq, nr_irqs); + sg2042_msi_free_hwirq(data, d->hwirq, nr_irqs); +} + +static const struct irq_domain_ops sg2042_msi_middle_domain_ops = { + .alloc = sg2042_msi_middle_domain_alloc, + .free = sg2042_msi_middle_domain_free, + .select = msi_lib_irq_domain_select, +}; + +#define SG2042_MSI_FLAGS_REQUIRED (MSI_FLAG_USE_DEF_DOM_OPS | \ + MSI_FLAG_USE_DEF_CHIP_OPS) + +#define SG2042_MSI_FLAGS_SUPPORTED MSI_GENERIC_FLAGS_MASK + +static const struct msi_parent_ops sg2042_msi_parent_ops = { + .required_flags = SG2042_MSI_FLAGS_REQUIRED, + .supported_flags = SG2042_MSI_FLAGS_SUPPORTED, + .chip_flags = MSI_CHIP_FLAG_SET_ACK, + .bus_select_mask = MATCH_PCI_MSI, + .bus_select_token = DOMAIN_BUS_NEXUS, + .prefix = "SG2042-", + .init_dev_msi_info = msi_lib_init_dev_msi_info, +}; + +static int sg2042_msi_init_domains(struct sg2042_msi_chipdata *data, + struct irq_domain *plic_domain, struct device *dev) +{ + struct fwnode_handle *fwnode = dev_fwnode(dev); + struct irq_domain *middle_domain; + + middle_domain = irq_domain_create_hierarchy(plic_domain, 0, data->num_irqs, fwnode, + &sg2042_msi_middle_domain_ops, data); + if (!middle_domain) { + pr_err("Failed to create the MSI middle domain\n"); + return -ENOMEM; + } + + irq_domain_update_bus_token(middle_domain, DOMAIN_BUS_NEXUS); + + middle_domain->flags |= IRQ_DOMAIN_FLAG_MSI_PARENT; + middle_domain->msi_parent_ops = &sg2042_msi_parent_ops; + + return 0; +} + +static int sg2042_msi_probe(struct platform_device *pdev) +{ + struct fwnode_reference_args args = { }; + struct sg2042_msi_chipdata *data; + struct device *dev = &pdev->dev; + struct irq_domain *plic_domain; + struct resource *res; + int ret; + + data = devm_kzalloc(dev, sizeof(struct sg2042_msi_chipdata), GFP_KERNEL); + if (!data) + return -ENOMEM; + + data->reg_clr = devm_platform_ioremap_resource_byname(pdev, "clr"); + if (IS_ERR(data->reg_clr)) { + dev_err(dev, "Failed to map clear register\n"); + return PTR_ERR(data->reg_clr); + } + + res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "doorbell"); + if (!res) { + dev_err(dev, "Failed get resource from set\n"); + return -EINVAL; + } + data->doorbell_addr = res->start; + + ret = fwnode_property_get_reference_args(dev_fwnode(dev), "msi-ranges", + "#interrupt-cells", 0, 0, &args); + if (ret) { + dev_err(dev, "Unable to parse MSI vec base\n"); + return ret; + } + fwnode_handle_put(args.fwnode); + + ret = fwnode_property_get_reference_args(dev_fwnode(dev), "msi-ranges", NULL, + args.nargs + 1, 0, &args); + if (ret) { + dev_err(dev, "Unable to parse MSI vec number\n"); + return ret; + } + + plic_domain = irq_find_matching_fwnode(args.fwnode, DOMAIN_BUS_ANY); + fwnode_handle_put(args.fwnode); + if (!plic_domain) { + pr_err("Failed to find the PLIC domain\n"); + return -ENXIO; + } + + data->irq_first = (u32)args.args[0]; + data->num_irqs = (u32)args.args[args.nargs - 1]; + + mutex_init(&data->msi_map_lock); + + return sg2042_msi_init_domains(data, plic_domain, dev); +} + +static const struct of_device_id sg2042_msi_of_match[] = { + { .compatible = "sophgo,sg2042-msi" }, + { } +}; + +static struct platform_driver sg2042_msi_driver = { + .driver = { + .name = "sg2042-msi", + .of_match_table = sg2042_msi_of_match, + }, + .probe = sg2042_msi_probe, +}; +builtin_platform_driver(sg2042_msi_driver); diff --git a/drivers/irqchip/irq-sunxi-nmi.c b/drivers/irqchip/irq-sunxi-nmi.c index 0b4312152024..01b0d8321728 100644 --- a/drivers/irqchip/irq-sunxi-nmi.c +++ b/drivers/irqchip/irq-sunxi-nmi.c @@ -48,32 +48,41 @@ enum { SUNXI_SRC_TYPE_EDGE_RISING, }; -struct sunxi_sc_nmi_reg_offs { - u32 ctrl; - u32 pend; - u32 enable; +struct sunxi_sc_nmi_data { + struct { + u32 ctrl; + u32 pend; + u32 enable; + } reg_offs; + u32 enable_val; }; -static const struct sunxi_sc_nmi_reg_offs sun6i_reg_offs __initconst = { - .ctrl = SUN6I_NMI_CTRL, - .pend = SUN6I_NMI_PENDING, - .enable = SUN6I_NMI_ENABLE, +static const struct sunxi_sc_nmi_data sun6i_data __initconst = { + .reg_offs.ctrl = SUN6I_NMI_CTRL, + .reg_offs.pend = SUN6I_NMI_PENDING, + .reg_offs.enable = SUN6I_NMI_ENABLE, }; -static const struct sunxi_sc_nmi_reg_offs sun7i_reg_offs __initconst = { - .ctrl = SUN7I_NMI_CTRL, - .pend = SUN7I_NMI_PENDING, - .enable = SUN7I_NMI_ENABLE, +static const struct sunxi_sc_nmi_data sun7i_data __initconst = { + .reg_offs.ctrl = SUN7I_NMI_CTRL, + .reg_offs.pend = SUN7I_NMI_PENDING, + .reg_offs.enable = SUN7I_NMI_ENABLE, }; -static const struct sunxi_sc_nmi_reg_offs sun9i_reg_offs __initconst = { - .ctrl = SUN9I_NMI_CTRL, - .pend = SUN9I_NMI_PENDING, - .enable = SUN9I_NMI_ENABLE, +static const struct sunxi_sc_nmi_data sun9i_data __initconst = { + .reg_offs.ctrl = SUN9I_NMI_CTRL, + .reg_offs.pend = SUN9I_NMI_PENDING, + .reg_offs.enable = SUN9I_NMI_ENABLE, }; -static inline void sunxi_sc_nmi_write(struct irq_chip_generic *gc, u32 off, - u32 val) +static const struct sunxi_sc_nmi_data sun55i_a523_data __initconst = { + .reg_offs.ctrl = SUN9I_NMI_CTRL, + .reg_offs.pend = SUN9I_NMI_PENDING, + .reg_offs.enable = SUN9I_NMI_ENABLE, + .enable_val = BIT(31), +}; + +static inline void sunxi_sc_nmi_write(struct irq_chip_generic *gc, u32 off, u32 val) { irq_reg_writel(gc, val, off); } @@ -143,15 +152,13 @@ static int sunxi_sc_nmi_set_type(struct irq_data *data, unsigned int flow_type) } static int __init sunxi_sc_nmi_irq_init(struct device_node *node, - const struct sunxi_sc_nmi_reg_offs *reg_offs) + const struct sunxi_sc_nmi_data *data) { - struct irq_domain *domain; + unsigned int irq, clr = IRQ_NOREQUEST | IRQ_NOPROBE | IRQ_NOAUTOEN; struct irq_chip_generic *gc; - unsigned int irq; - unsigned int clr = IRQ_NOREQUEST | IRQ_NOPROBE | IRQ_NOAUTOEN; + struct irq_domain *domain; int ret; - domain = irq_domain_add_linear(node, 1, &irq_generic_chip_ops, NULL); if (!domain) { pr_err("Could not register interrupt domain.\n"); @@ -186,27 +193,28 @@ static int __init sunxi_sc_nmi_irq_init(struct device_node *node, gc->chip_types[0].chip.irq_unmask = irq_gc_mask_set_bit; gc->chip_types[0].chip.irq_eoi = irq_gc_ack_set_bit; gc->chip_types[0].chip.irq_set_type = sunxi_sc_nmi_set_type; - gc->chip_types[0].chip.flags = IRQCHIP_EOI_THREADED | IRQCHIP_EOI_IF_HANDLED | + gc->chip_types[0].chip.flags = IRQCHIP_EOI_THREADED | + IRQCHIP_EOI_IF_HANDLED | IRQCHIP_SKIP_SET_WAKE; - gc->chip_types[0].regs.ack = reg_offs->pend; - gc->chip_types[0].regs.mask = reg_offs->enable; - gc->chip_types[0].regs.type = reg_offs->ctrl; + gc->chip_types[0].regs.ack = data->reg_offs.pend; + gc->chip_types[0].regs.mask = data->reg_offs.enable; + gc->chip_types[0].regs.type = data->reg_offs.ctrl; gc->chip_types[1].type = IRQ_TYPE_EDGE_BOTH; gc->chip_types[1].chip.irq_ack = irq_gc_ack_set_bit; gc->chip_types[1].chip.irq_mask = irq_gc_mask_clr_bit; gc->chip_types[1].chip.irq_unmask = irq_gc_mask_set_bit; gc->chip_types[1].chip.irq_set_type = sunxi_sc_nmi_set_type; - gc->chip_types[1].regs.ack = reg_offs->pend; - gc->chip_types[1].regs.mask = reg_offs->enable; - gc->chip_types[1].regs.type = reg_offs->ctrl; + gc->chip_types[1].regs.ack = data->reg_offs.pend; + gc->chip_types[1].regs.mask = data->reg_offs.enable; + gc->chip_types[1].regs.type = data->reg_offs.ctrl; gc->chip_types[1].handler = handle_edge_irq; /* Disable any active interrupts */ - sunxi_sc_nmi_write(gc, reg_offs->enable, 0); + sunxi_sc_nmi_write(gc, data->reg_offs.enable, data->enable_val); /* Clear any pending NMI interrupts */ - sunxi_sc_nmi_write(gc, reg_offs->pend, SUNXI_NMI_IRQ_BIT); + sunxi_sc_nmi_write(gc, data->reg_offs.pend, SUNXI_NMI_IRQ_BIT); irq_set_chained_handler_and_data(irq, sunxi_sc_nmi_handle_irq, domain); @@ -221,20 +229,27 @@ fail_irqd_remove: static int __init sun6i_sc_nmi_irq_init(struct device_node *node, struct device_node *parent) { - return sunxi_sc_nmi_irq_init(node, &sun6i_reg_offs); + return sunxi_sc_nmi_irq_init(node, &sun6i_data); } IRQCHIP_DECLARE(sun6i_sc_nmi, "allwinner,sun6i-a31-sc-nmi", sun6i_sc_nmi_irq_init); static int __init sun7i_sc_nmi_irq_init(struct device_node *node, struct device_node *parent) { - return sunxi_sc_nmi_irq_init(node, &sun7i_reg_offs); + return sunxi_sc_nmi_irq_init(node, &sun7i_data); } IRQCHIP_DECLARE(sun7i_sc_nmi, "allwinner,sun7i-a20-sc-nmi", sun7i_sc_nmi_irq_init); static int __init sun9i_nmi_irq_init(struct device_node *node, struct device_node *parent) { - return sunxi_sc_nmi_irq_init(node, &sun9i_reg_offs); + return sunxi_sc_nmi_irq_init(node, &sun9i_data); } IRQCHIP_DECLARE(sun9i_nmi, "allwinner,sun9i-a80-nmi", sun9i_nmi_irq_init); + +static int __init sun55i_nmi_irq_init(struct device_node *node, + struct device_node *parent) +{ + return sunxi_sc_nmi_irq_init(node, &sun55i_a523_data); +} +IRQCHIP_DECLARE(sun55i_nmi, "allwinner,sun55i-a523-nmi", sun55i_nmi_irq_init); diff --git a/drivers/irqchip/irq-xilinx-intc.c b/drivers/irqchip/irq-xilinx-intc.c index 7e08714d507f..38727e9cc713 100644 --- a/drivers/irqchip/irq-xilinx-intc.c +++ b/drivers/irqchip/irq-xilinx-intc.c @@ -233,7 +233,7 @@ static int __init xilinx_intc_of_init(struct device_node *intc, } } else { primary_intc = irqc; - irq_set_default_host(primary_intc->root_domain); + irq_set_default_domain(primary_intc->root_domain); set_handle_irq(xil_intc_handle_irq); } diff --git a/drivers/irqchip/irq-xtensa-mx.c b/drivers/irqchip/irq-xtensa-mx.c index 7f314e58f3ce..9b441d180299 100644 --- a/drivers/irqchip/irq-xtensa-mx.c +++ b/drivers/irqchip/irq-xtensa-mx.c @@ -156,7 +156,7 @@ static void __init xtensa_mx_init_common(struct irq_domain *root_domain) { unsigned int i; - irq_set_default_host(root_domain); + irq_set_default_domain(root_domain); secondary_init_irq(); /* Initialize default IRQ routing to CPU 0 */ diff --git a/drivers/irqchip/irq-xtensa-pic.c b/drivers/irqchip/irq-xtensa-pic.c index f9d6fce4da33..9be7b7c5cd23 100644 --- a/drivers/irqchip/irq-xtensa-pic.c +++ b/drivers/irqchip/irq-xtensa-pic.c @@ -87,7 +87,7 @@ int __init xtensa_pic_init_legacy(struct device_node *interrupt_parent) struct irq_domain *root_domain = irq_domain_add_legacy(NULL, NR_IRQS - 1, 1, 0, &xtensa_irq_domain_ops, &xtensa_irq_chip); - irq_set_default_host(root_domain); + irq_set_default_domain(root_domain); return 0; } @@ -97,7 +97,7 @@ static int __init xtensa_pic_init(struct device_node *np, struct irq_domain *root_domain = irq_domain_add_linear(np, NR_IRQS, &xtensa_irq_domain_ops, &xtensa_irq_chip); - irq_set_default_host(root_domain); + irq_set_default_domain(root_domain); return 0; } IRQCHIP_DECLARE(xtensa_irq_chip, "cdns,xtensa-pic", xtensa_pic_init); |