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irqchip: Add RISC-V advanced PLIC driver for direct-mode

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The RISC-V advanced interrupt architecture (AIA) specification defines
advanced platform-level interrupt controller (APLIC) which has two modes
of operation: 1) Direct mode and 2) MSI mode.
(For more details, refer https://github.com/riscv/riscv-aia)

In APLIC direct-mode, wired interrupts are forwared to CPUs (or HARTs)
as a local external interrupt.

Add a platform irqchip driver for the RISC-V APLIC direct-mode to
support RISC-V platforms having only wired interrupts.

Signed-off-by: Anup Patel <apatel@ventanamicro.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Björn Töpel <bjorn@rivosinc.com>
Reviewed-by: Björn Töpel <bjorn@rivosinc.com>
Link: https://lore.kernel.org/r/20240307140307.646078-7-apatel@ventanamicro.com
This commit is contained in:
Anup Patel 2024-03-07 19:33:04 +05:30 committed by Thomas Gleixner
parent 3b806a5a1a
commit 2333df5ae5
6 changed files with 732 additions and 0 deletions
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5
drivers/irqchip/Kconfig
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@ -540,6 +540,11 @@ config RISCV_INTC
depends on RISCV
select IRQ_DOMAIN_HIERARCHY
config RISCV_APLIC
bool
depends on RISCV
select IRQ_DOMAIN_HIERARCHY
config RISCV_IMSIC
bool
depends on RISCV

1
drivers/irqchip/Makefile
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@ -95,6 +95,7 @@ obj-$(CONFIG_QCOM_MPM) += irq-qcom-mpm.o
obj-$(CONFIG_CSKY_MPINTC) += irq-csky-mpintc.o
obj-$(CONFIG_CSKY_APB_INTC) += irq-csky-apb-intc.o
obj-$(CONFIG_RISCV_INTC) += irq-riscv-intc.o
obj-$(CONFIG_RISCV_APLIC) += irq-riscv-aplic-main.o irq-riscv-aplic-direct.o
obj-$(CONFIG_RISCV_IMSIC) += irq-riscv-imsic-state.o irq-riscv-imsic-early.o irq-riscv-imsic-platform.o
obj-$(CONFIG_SIFIVE_PLIC) += irq-sifive-plic.o
obj-$(CONFIG_STARFIVE_JH8100_INTC) += irq-starfive-jh8100-intc.o

326
drivers/irqchip/irq-riscv-aplic-direct.c Normal file
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@ -0,0 +1,326 @@
// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2021 Western Digital Corporation or its affiliates.
* Copyright (C) 2022 Ventana Micro Systems Inc.
*/
#include <linux/bitfield.h>
#include <linux/bitops.h>
#include <linux/cpu.h>
#include <linux/interrupt.h>
#include <linux/irqchip.h>
#include <linux/irqchip/chained_irq.h>
#include <linux/irqchip/riscv-aplic.h>
#include <linux/module.h>
#include <linux/of_address.h>
#include <linux/printk.h>
#include <linux/smp.h>
#include "irq-riscv-aplic-main.h"
#define APLIC_DISABLE_IDELIVERY 0
#define APLIC_ENABLE_IDELIVERY 1
#define APLIC_DISABLE_ITHRESHOLD 1
#define APLIC_ENABLE_ITHRESHOLD 0
struct aplic_direct {
struct aplic_priv priv;
struct irq_domain *irqdomain;
struct cpumask lmask;
};
struct aplic_idc {
unsigned int hart_index;
void __iomem *regs;
struct aplic_direct *direct;
};
static unsigned int aplic_direct_parent_irq;
static DEFINE_PER_CPU(struct aplic_idc, aplic_idcs);
static void aplic_direct_irq_eoi(struct irq_data *d)
{
/*
* The fasteoi_handler requires irq_eoi() callback hence
* provide a dummy handler.
*/
}
#ifdef CONFIG_SMP
static int aplic_direct_set_affinity(struct irq_data *d, const struct cpumask *mask_val,
bool force)
{
struct aplic_priv *priv = irq_data_get_irq_chip_data(d);
struct aplic_direct *direct = container_of(priv, struct aplic_direct, priv);
struct aplic_idc *idc;
unsigned int cpu, val;
struct cpumask amask;
void __iomem *target;
cpumask_and(&amask, &direct->lmask, mask_val);
if (force)
cpu = cpumask_first(&amask);
else
cpu = cpumask_any_and(&amask, cpu_online_mask);
if (cpu >= nr_cpu_ids)
return -EINVAL;
idc = per_cpu_ptr(&aplic_idcs, cpu);
target = priv->regs + APLIC_TARGET_BASE + (d->hwirq - 1) * sizeof(u32);
val = FIELD_PREP(APLIC_TARGET_HART_IDX, idc->hart_index);
val |= FIELD_PREP(APLIC_TARGET_IPRIO, APLIC_DEFAULT_PRIORITY);
writel(val, target);
irq_data_update_effective_affinity(d, cpumask_of(cpu));
return IRQ_SET_MASK_OK_DONE;
}
#endif
static struct irq_chip aplic_direct_chip = {
.name = "APLIC-DIRECT",
.irq_mask = aplic_irq_mask,
.irq_unmask = aplic_irq_unmask,
.irq_set_type = aplic_irq_set_type,
.irq_eoi = aplic_direct_irq_eoi,
#ifdef CONFIG_SMP
.irq_set_affinity = aplic_direct_set_affinity,
#endif
.flags = IRQCHIP_SET_TYPE_MASKED |
IRQCHIP_SKIP_SET_WAKE |
IRQCHIP_MASK_ON_SUSPEND,
};
static int aplic_direct_irqdomain_translate(struct irq_domain *d, struct irq_fwspec *fwspec,
unsigned long *hwirq, unsigned int *type)
{
struct aplic_priv *priv = d->host_data;
return aplic_irqdomain_translate(fwspec, priv->gsi_base, hwirq, type);
}
static int aplic_direct_irqdomain_alloc(struct irq_domain *domain, unsigned int virq,
unsigned int nr_irqs, void *arg)
{
struct aplic_priv *priv = domain->host_data;
struct aplic_direct *direct = container_of(priv, struct aplic_direct, priv);
struct irq_fwspec *fwspec = arg;
irq_hw_number_t hwirq;
unsigned int type;
int i, ret;
ret = aplic_irqdomain_translate(fwspec, priv->gsi_base, &hwirq, &type);
if (ret)
return ret;
for (i = 0; i < nr_irqs; i++) {
irq_domain_set_info(domain, virq + i, hwirq + i, &aplic_direct_chip,
priv, handle_fasteoi_irq, NULL, NULL);
irq_set_affinity(virq + i, &direct->lmask);
}
return 0;
}
static const struct irq_domain_ops aplic_direct_irqdomain_ops = {
.translate = aplic_direct_irqdomain_translate,
.alloc = aplic_direct_irqdomain_alloc,
.free = irq_domain_free_irqs_top,
};
/*
* To handle an APLIC direct interrupts, we just read the CLAIMI register
* which will return highest priority pending interrupt and clear the
* pending bit of the interrupt. This process is repeated until CLAIMI
* register return zero value.
*/
static void aplic_direct_handle_irq(struct irq_desc *desc)
{
struct aplic_idc *idc = this_cpu_ptr(&aplic_idcs);
struct irq_domain *irqdomain = idc->direct->irqdomain;
struct irq_chip *chip = irq_desc_get_chip(desc);
irq_hw_number_t hw_irq;
int irq;
chained_irq_enter(chip, desc);
while ((hw_irq = readl(idc->regs + APLIC_IDC_CLAIMI))) {
hw_irq = hw_irq >> APLIC_IDC_TOPI_ID_SHIFT;
irq = irq_find_mapping(irqdomain, hw_irq);
if (unlikely(irq <= 0)) {
dev_warn_ratelimited(idc->direct->priv.dev,
"hw_irq %lu mapping not found\n", hw_irq);
} else {
generic_handle_irq(irq);
}
}
chained_irq_exit(chip, desc);
}
static void aplic_idc_set_delivery(struct aplic_idc *idc, bool en)
{
u32 de = (en) ? APLIC_ENABLE_IDELIVERY : APLIC_DISABLE_IDELIVERY;
u32 th = (en) ? APLIC_ENABLE_ITHRESHOLD : APLIC_DISABLE_ITHRESHOLD;
/* Priority must be less than threshold for interrupt triggering */
writel(th, idc->regs + APLIC_IDC_ITHRESHOLD);
/* Delivery must be set to 1 for interrupt triggering */
writel(de, idc->regs + APLIC_IDC_IDELIVERY);
}
static int aplic_direct_dying_cpu(unsigned int cpu)
{
if (aplic_direct_parent_irq)
disable_percpu_irq(aplic_direct_parent_irq);
return 0;
}
static int aplic_direct_starting_cpu(unsigned int cpu)
{
if (aplic_direct_parent_irq) {
enable_percpu_irq(aplic_direct_parent_irq,
irq_get_trigger_type(aplic_direct_parent_irq));
}
return 0;
}
static int aplic_direct_parse_parent_hwirq(struct device *dev, u32 index,
u32 *parent_hwirq, unsigned long *parent_hartid)
{
struct of_phandle_args parent;
int rc;
/*
* Currently, only OF fwnode is supported so extend this
* function for ACPI support.
*/
if (!is_of_node(dev->fwnode))
return -EINVAL;
rc = of_irq_parse_one(to_of_node(dev->fwnode), index, &parent);
if (rc)
return rc;
rc = riscv_of_parent_hartid(parent.np, parent_hartid);
if (rc)
return rc;
*parent_hwirq = parent.args[0];
return 0;
}
int aplic_direct_setup(struct device *dev, void __iomem *regs)
{
int i, j, rc, cpu, current_cpu, setup_count = 0;
struct aplic_direct *direct;
struct irq_domain *domain;
struct aplic_priv *priv;
struct aplic_idc *idc;
unsigned long hartid;
u32 v, hwirq;
direct = devm_kzalloc(dev, sizeof(*direct), GFP_KERNEL);
if (!direct)
return -ENOMEM;
priv = &direct->priv;
rc = aplic_setup_priv(priv, dev, regs);
if (rc) {
dev_err(dev, "failed to create APLIC context\n");
return rc;
}
/* Setup per-CPU IDC and target CPU mask */
current_cpu = get_cpu();
for (i = 0; i < priv->nr_idcs; i++) {
rc = aplic_direct_parse_parent_hwirq(dev, i, &hwirq, &hartid);
if (rc) {
dev_warn(dev, "parent irq for IDC%d not found\n", i);
continue;
}
/*
* Skip interrupts other than external interrupts for
* current privilege level.
*/
if (hwirq != RV_IRQ_EXT)
continue;
cpu = riscv_hartid_to_cpuid(hartid);
if (cpu < 0) {
dev_warn(dev, "invalid cpuid for IDC%d\n", i);
continue;
}
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;
idc->direct = direct;
aplic_idc_set_delivery(idc, true);
/*
* Boot cpu might not have APLIC hart_index = 0 so check
* and update target registers of all interrupts.
*/
if (cpu == current_cpu && idc->hart_index) {
v = FIELD_PREP(APLIC_TARGET_HART_IDX, idc->hart_index);
v |= FIELD_PREP(APLIC_TARGET_IPRIO, APLIC_DEFAULT_PRIORITY);
for (j = 1; j <= priv->nr_irqs; j++)
writel(v, priv->regs + APLIC_TARGET_BASE + (j - 1) * sizeof(u32));
}
setup_count++;
}
put_cpu();
/* Find parent domain and register chained handler */
domain = irq_find_matching_fwnode(riscv_get_intc_hwnode(),
DOMAIN_BUS_ANY);
if (!aplic_direct_parent_irq && domain) {
aplic_direct_parent_irq = irq_create_mapping(domain, RV_IRQ_EXT);
if (aplic_direct_parent_irq) {
irq_set_chained_handler(aplic_direct_parent_irq,
aplic_direct_handle_irq);
/*
* Setup CPUHP notifier to enable parent
* interrupt on all CPUs
*/
cpuhp_setup_state(CPUHP_AP_ONLINE_DYN,
"irqchip/riscv/aplic:starting",
aplic_direct_starting_cpu,
aplic_direct_dying_cpu);
}
}
/* Fail if we were not able to setup IDC for any CPU */
if (!setup_count)
return -ENODEV;
/* Setup global config and interrupt delivery */
aplic_init_hw_global(priv, false);
/* Create irq domain instance for the APLIC */
direct->irqdomain = irq_domain_create_linear(dev->fwnode, priv->nr_irqs + 1,
&aplic_direct_irqdomain_ops, priv);
if (!direct->irqdomain) {
dev_err(dev, "failed to create direct irq domain\n");
return -ENOMEM;
}
/* Advertise the interrupt controller */
dev_info(dev, "%d interrupts directly connected to %d CPUs\n",
priv->nr_irqs, priv->nr_idcs);
return 0;
}

211
drivers/irqchip/irq-riscv-aplic-main.c Normal file
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@ -0,0 +1,211 @@
// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2021 Western Digital Corporation or its affiliates.
* Copyright (C) 2022 Ventana Micro Systems Inc.
*/
#include <linux/bitfield.h>
#include <linux/irqchip/riscv-aplic.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/of_irq.h>
#include <linux/platform_device.h>
#include <linux/printk.h>
#include "irq-riscv-aplic-main.h"
void aplic_irq_unmask(struct irq_data *d)
{
struct aplic_priv *priv = irq_data_get_irq_chip_data(d);
writel(d->hwirq, priv->regs + APLIC_SETIENUM);
}
void aplic_irq_mask(struct irq_data *d)
{
struct aplic_priv *priv = irq_data_get_irq_chip_data(d);
writel(d->hwirq, priv->regs + APLIC_CLRIENUM);
}
int aplic_irq_set_type(struct irq_data *d, unsigned int type)
{
struct aplic_priv *priv = irq_data_get_irq_chip_data(d);
void __iomem *sourcecfg;
u32 val = 0;
switch (type) {
case IRQ_TYPE_NONE:
val = APLIC_SOURCECFG_SM_INACTIVE;
break;
case IRQ_TYPE_LEVEL_LOW:
val = APLIC_SOURCECFG_SM_LEVEL_LOW;
break;
case IRQ_TYPE_LEVEL_HIGH:
val = APLIC_SOURCECFG_SM_LEVEL_HIGH;
break;
case IRQ_TYPE_EDGE_FALLING:
val = APLIC_SOURCECFG_SM_EDGE_FALL;
break;
case IRQ_TYPE_EDGE_RISING:
val = APLIC_SOURCECFG_SM_EDGE_RISE;
break;
default:
return -EINVAL;
}
sourcecfg = priv->regs + APLIC_SOURCECFG_BASE;
sourcecfg += (d->hwirq - 1) * sizeof(u32);
writel(val, sourcecfg);
return 0;
}
int aplic_irqdomain_translate(struct irq_fwspec *fwspec, u32 gsi_base,
unsigned long *hwirq, unsigned int *type)
{
if (WARN_ON(fwspec->param_count < 2))
return -EINVAL;
if (WARN_ON(!fwspec->param[0]))
return -EINVAL;
/* For DT, gsi_base is always zero. */
*hwirq = fwspec->param[0] - gsi_base;
*type = fwspec->param[1] & IRQ_TYPE_SENSE_MASK;
WARN_ON(*type == IRQ_TYPE_NONE);
return 0;
}
void aplic_init_hw_global(struct aplic_priv *priv, bool msi_mode)
{
u32 val;
#ifdef CONFIG_RISCV_M_MODE
u32 valh;
if (msi_mode) {
val = lower_32_bits(priv->msicfg.base_ppn);
valh = FIELD_PREP(APLIC_xMSICFGADDRH_BAPPN, upper_32_bits(priv->msicfg.base_ppn));
valh |= FIELD_PREP(APLIC_xMSICFGADDRH_LHXW, priv->msicfg.lhxw);
valh |= FIELD_PREP(APLIC_xMSICFGADDRH_HHXW, priv->msicfg.hhxw);
valh |= FIELD_PREP(APLIC_xMSICFGADDRH_LHXS, priv->msicfg.lhxs);
valh |= FIELD_PREP(APLIC_xMSICFGADDRH_HHXS, priv->msicfg.hhxs);
writel(val, priv->regs + APLIC_xMSICFGADDR);
writel(valh, priv->regs + APLIC_xMSICFGADDRH);
}
#endif
/* Setup APLIC domaincfg register */
val = readl(priv->regs + APLIC_DOMAINCFG);
val |= APLIC_DOMAINCFG_IE;
if (msi_mode)
val |= APLIC_DOMAINCFG_DM;
writel(val, priv->regs + APLIC_DOMAINCFG);
if (readl(priv->regs + APLIC_DOMAINCFG) != val)
dev_warn(priv->dev, "unable to write 0x%x in domaincfg\n", val);
}
static void aplic_init_hw_irqs(struct aplic_priv *priv)
{
int i;
/* Disable all interrupts */
for (i = 0; i <= priv->nr_irqs; i += 32)
writel(-1U, priv->regs + APLIC_CLRIE_BASE + (i / 32) * sizeof(u32));
/* Set interrupt type and default priority for all interrupts */
for (i = 1; i <= priv->nr_irqs; i++) {
writel(0, priv->regs + APLIC_SOURCECFG_BASE + (i - 1) * sizeof(u32));
writel(APLIC_DEFAULT_PRIORITY,
priv->regs + APLIC_TARGET_BASE + (i - 1) * sizeof(u32));
}
/* Clear APLIC domaincfg */
writel(0, priv->regs + APLIC_DOMAINCFG);
}
int aplic_setup_priv(struct aplic_priv *priv, struct device *dev, void __iomem *regs)
{
struct of_phandle_args parent;
int rc;
/*
* Currently, only OF fwnode is supported so extend this
* function for ACPI support.
*/
if (!is_of_node(dev->fwnode))
return -EINVAL;
/* Save device pointer and register base */
priv->dev = dev;
priv->regs = regs;
/* Find out number of interrupt sources */
rc = of_property_read_u32(to_of_node(dev->fwnode), "riscv,num-sources",
&priv->nr_irqs);
if (rc) {
dev_err(dev, "failed to get number of interrupt sources\n");
return rc;
}
/*
* Find out number of IDCs based on parent interrupts
*
* If "msi-parent" property is present then we ignore the
* APLIC IDCs which forces the APLIC driver to use MSI mode.
*/
if (!of_property_present(to_of_node(dev->fwnode), "msi-parent")) {
while (!of_irq_parse_one(to_of_node(dev->fwnode), priv->nr_idcs, &parent))
priv->nr_idcs++;
}
/* Setup initial state APLIC interrupts */
aplic_init_hw_irqs(priv);
return 0;
}
static int aplic_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
bool msi_mode = false;
void __iomem *regs;
int rc;
/* Map the MMIO registers */
regs = devm_platform_ioremap_resource(pdev, 0);
if (!regs) {
dev_err(dev, "failed map MMIO registers\n");
return -ENOMEM;
}
/*
* If msi-parent property is present then setup APLIC MSI
* mode otherwise setup APLIC direct mode.
*/
if (is_of_node(dev->fwnode))
msi_mode = of_property_present(to_of_node(dev->fwnode), "msi-parent");
if (msi_mode)
rc = -ENODEV;
else
rc = aplic_direct_setup(dev, regs);
if (rc)
dev_err(dev, "failed to setup APLIC in %s mode\n", msi_mode ? "MSI" : "direct");
return rc;
}
static const struct of_device_id aplic_match[] = {
{ .compatible = "riscv,aplic" },
{}
};
static struct platform_driver aplic_driver = {
.driver = {
.name = "riscv-aplic",
.of_match_table = aplic_match,
},
.probe = aplic_probe,
};
builtin_platform_driver(aplic_driver);

44
drivers/irqchip/irq-riscv-aplic-main.h Normal file
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@ -0,0 +1,44 @@
/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright (C) 2021 Western Digital Corporation or its affiliates.
* Copyright (C) 2022 Ventana Micro Systems Inc.
*/
#ifndef _IRQ_RISCV_APLIC_MAIN_H
#define _IRQ_RISCV_APLIC_MAIN_H
#include <linux/device.h>
#include <linux/io.h>
#include <linux/irq.h>
#include <linux/irqdomain.h>
#include <linux/fwnode.h>
#define APLIC_DEFAULT_PRIORITY 1
struct aplic_msicfg {
phys_addr_t base_ppn;
u32 hhxs;
u32 hhxw;
u32 lhxs;
u32 lhxw;
};
struct aplic_priv {
struct device *dev;
u32 gsi_base;
u32 nr_irqs;
u32 nr_idcs;
void __iomem *regs;
struct aplic_msicfg msicfg;
};
void aplic_irq_unmask(struct irq_data *d);
void aplic_irq_mask(struct irq_data *d);
int aplic_irq_set_type(struct irq_data *d, unsigned int type);
int aplic_irqdomain_translate(struct irq_fwspec *fwspec, u32 gsi_base,
unsigned long *hwirq, unsigned int *type);
void aplic_init_hw_global(struct aplic_priv *priv, bool msi_mode);
int aplic_setup_priv(struct aplic_priv *priv, struct device *dev, void __iomem *regs);
int aplic_direct_setup(struct device *dev, void __iomem *regs);
#endif

145
include/linux/irqchip/riscv-aplic.h Normal file
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@ -0,0 +1,145 @@
/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright (C) 2021 Western Digital Corporation or its affiliates.
* Copyright (C) 2022 Ventana Micro Systems Inc.
*/
#ifndef __LINUX_IRQCHIP_RISCV_APLIC_H
#define __LINUX_IRQCHIP_RISCV_APLIC_H
#include <linux/bitops.h>
#define APLIC_MAX_IDC BIT(14)
#define APLIC_MAX_SOURCE 1024
#define APLIC_DOMAINCFG 0x0000
#define APLIC_DOMAINCFG_RDONLY 0x80000000
#define APLIC_DOMAINCFG_IE BIT(8)
#define APLIC_DOMAINCFG_DM BIT(2)
#define APLIC_DOMAINCFG_BE BIT(0)
#define APLIC_SOURCECFG_BASE 0x0004
#define APLIC_SOURCECFG_D BIT(10)
#define APLIC_SOURCECFG_CHILDIDX_MASK 0x000003ff
#define APLIC_SOURCECFG_SM_MASK 0x00000007
#define APLIC_SOURCECFG_SM_INACTIVE 0x0
#define APLIC_SOURCECFG_SM_DETACH 0x1
#define APLIC_SOURCECFG_SM_EDGE_RISE 0x4
#define APLIC_SOURCECFG_SM_EDGE_FALL 0x5
#define APLIC_SOURCECFG_SM_LEVEL_HIGH 0x6
#define APLIC_SOURCECFG_SM_LEVEL_LOW 0x7
#define APLIC_MMSICFGADDR 0x1bc0
#define APLIC_MMSICFGADDRH 0x1bc4
#define APLIC_SMSICFGADDR 0x1bc8
#define APLIC_SMSICFGADDRH 0x1bcc
#ifdef CONFIG_RISCV_M_MODE
#define APLIC_xMSICFGADDR APLIC_MMSICFGADDR
#define APLIC_xMSICFGADDRH APLIC_MMSICFGADDRH
#else
#define APLIC_xMSICFGADDR APLIC_SMSICFGADDR
#define APLIC_xMSICFGADDRH APLIC_SMSICFGADDRH
#endif
#define APLIC_xMSICFGADDRH_L BIT(31)
#define APLIC_xMSICFGADDRH_HHXS_MASK 0x1f
#define APLIC_xMSICFGADDRH_HHXS_SHIFT 24
#define APLIC_xMSICFGADDRH_HHXS (APLIC_xMSICFGADDRH_HHXS_MASK << \
APLIC_xMSICFGADDRH_HHXS_SHIFT)
#define APLIC_xMSICFGADDRH_LHXS_MASK 0x7
#define APLIC_xMSICFGADDRH_LHXS_SHIFT 20
#define APLIC_xMSICFGADDRH_LHXS (APLIC_xMSICFGADDRH_LHXS_MASK << \
APLIC_xMSICFGADDRH_LHXS_SHIFT)
#define APLIC_xMSICFGADDRH_HHXW_MASK 0x7
#define APLIC_xMSICFGADDRH_HHXW_SHIFT 16
#define APLIC_xMSICFGADDRH_HHXW (APLIC_xMSICFGADDRH_HHXW_MASK << \
APLIC_xMSICFGADDRH_HHXW_SHIFT)
#define APLIC_xMSICFGADDRH_LHXW_MASK 0xf
#define APLIC_xMSICFGADDRH_LHXW_SHIFT 12
#define APLIC_xMSICFGADDRH_LHXW (APLIC_xMSICFGADDRH_LHXW_MASK << \
APLIC_xMSICFGADDRH_LHXW_SHIFT)
#define APLIC_xMSICFGADDRH_BAPPN_MASK 0xfff
#define APLIC_xMSICFGADDRH_BAPPN_SHIFT 0
#define APLIC_xMSICFGADDRH_BAPPN (APLIC_xMSICFGADDRH_BAPPN_MASK << \
APLIC_xMSICFGADDRH_BAPPN_SHIFT)
#define APLIC_xMSICFGADDR_PPN_SHIFT 12
#define APLIC_xMSICFGADDR_PPN_HART(__lhxs) \
(BIT(__lhxs) - 1)
#define APLIC_xMSICFGADDR_PPN_LHX_MASK(__lhxw) \
(BIT(__lhxw) - 1)
#define APLIC_xMSICFGADDR_PPN_LHX_SHIFT(__lhxs) \
((__lhxs))
#define APLIC_xMSICFGADDR_PPN_LHX(__lhxw, __lhxs) \
(APLIC_xMSICFGADDR_PPN_LHX_MASK(__lhxw) << \
APLIC_xMSICFGADDR_PPN_LHX_SHIFT(__lhxs))
#define APLIC_xMSICFGADDR_PPN_HHX_MASK(__hhxw) \
(BIT(__hhxw) - 1)
#define APLIC_xMSICFGADDR_PPN_HHX_SHIFT(__hhxs) \
((__hhxs) + APLIC_xMSICFGADDR_PPN_SHIFT)
#define APLIC_xMSICFGADDR_PPN_HHX(__hhxw, __hhxs) \
(APLIC_xMSICFGADDR_PPN_HHX_MASK(__hhxw) << \
APLIC_xMSICFGADDR_PPN_HHX_SHIFT(__hhxs))
#define APLIC_IRQBITS_PER_REG 32
#define APLIC_SETIP_BASE 0x1c00
#define APLIC_SETIPNUM 0x1cdc
#define APLIC_CLRIP_BASE 0x1d00
#define APLIC_CLRIPNUM 0x1ddc
#define APLIC_SETIE_BASE 0x1e00
#define APLIC_SETIENUM 0x1edc
#define APLIC_CLRIE_BASE 0x1f00
#define APLIC_CLRIENUM 0x1fdc
#define APLIC_SETIPNUM_LE 0x2000
#define APLIC_SETIPNUM_BE 0x2004
#define APLIC_GENMSI 0x3000
#define APLIC_TARGET_BASE 0x3004
#define APLIC_TARGET_HART_IDX_SHIFT 18
#define APLIC_TARGET_HART_IDX_MASK 0x3fff
#define APLIC_TARGET_HART_IDX (APLIC_TARGET_HART_IDX_MASK << \
APLIC_TARGET_HART_IDX_SHIFT)
#define APLIC_TARGET_GUEST_IDX_SHIFT 12
#define APLIC_TARGET_GUEST_IDX_MASK 0x3f
#define APLIC_TARGET_GUEST_IDX (APLIC_TARGET_GUEST_IDX_MASK << \
APLIC_TARGET_GUEST_IDX_SHIFT)
#define APLIC_TARGET_IPRIO_SHIFT 0
#define APLIC_TARGET_IPRIO_MASK 0xff
#define APLIC_TARGET_IPRIO (APLIC_TARGET_IPRIO_MASK << \
APLIC_TARGET_IPRIO_SHIFT)
#define APLIC_TARGET_EIID_SHIFT 0
#define APLIC_TARGET_EIID_MASK 0x7ff
#define APLIC_TARGET_EIID (APLIC_TARGET_EIID_MASK << \
APLIC_TARGET_EIID_SHIFT)
#define APLIC_IDC_BASE 0x4000
#define APLIC_IDC_SIZE 32
#define APLIC_IDC_IDELIVERY 0x00
#define APLIC_IDC_IFORCE 0x04
#define APLIC_IDC_ITHRESHOLD 0x08
#define APLIC_IDC_TOPI 0x18
#define APLIC_IDC_TOPI_ID_SHIFT 16
#define APLIC_IDC_TOPI_ID_MASK 0x3ff
#define APLIC_IDC_TOPI_ID (APLIC_IDC_TOPI_ID_MASK << \
APLIC_IDC_TOPI_ID_SHIFT)
#define APLIC_IDC_TOPI_PRIO_SHIFT 0
#define APLIC_IDC_TOPI_PRIO_MASK 0xff
#define APLIC_IDC_TOPI_PRIO (APLIC_IDC_TOPI_PRIO_MASK << \
APLIC_IDC_TOPI_PRIO_SHIFT)
#define APLIC_IDC_CLAIMI 0x1c
#endif