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[PATCH v1 1/3] hw/intc: Upgrade the SiFive CLINT implementation to RISC-
|
From: |
Anup Patel |
|
Subject: |
[PATCH v1 1/3] hw/intc: Upgrade the SiFive CLINT implementation to RISC-V ACLINT |
|
Date: |
Sat, 12 Jun 2021 21:36:13 +0530 |
The RISC-V ACLINT is more modular and backward compatible with
original SiFive CLINT so instead of duplicating the orignal
SiFive CLINT implementation we upgrade the current SiFive CLINT
implementation to RISC-V ACLINT implementation.
Signed-off-by: Anup Patel <anup.patel@wdc.com>
---
hw/intc/Kconfig | 2 +-
hw/intc/meson.build | 2 +-
hw/intc/riscv_aclint.c | 374 +++++++++++++++++++++++++++++++++
hw/intc/sifive_clint.c | 266 -----------------------
hw/riscv/Kconfig | 10 +-
hw/riscv/microchip_pfsoc.c | 12 +-
hw/riscv/sifive_e.c | 12 +-
hw/riscv/sifive_u.c | 14 +-
hw/riscv/spike.c | 15 +-
hw/riscv/virt.c | 15 +-
include/hw/intc/riscv_aclint.h | 73 +++++++
include/hw/intc/sifive_clint.h | 60 ------
12 files changed, 494 insertions(+), 361 deletions(-)
create mode 100644 hw/intc/riscv_aclint.c
delete mode 100644 hw/intc/sifive_clint.c
create mode 100644 include/hw/intc/riscv_aclint.h
delete mode 100644 include/hw/intc/sifive_clint.h
diff --git a/hw/intc/Kconfig b/hw/intc/Kconfig
index f4694088a4..78aed93c45 100644
--- a/hw/intc/Kconfig
+++ b/hw/intc/Kconfig
@@ -62,7 +62,7 @@ config RX_ICU
config LOONGSON_LIOINTC
bool
-config SIFIVE_CLINT
+config RISCV_ACLINT
bool
config SIFIVE_PLIC
diff --git a/hw/intc/meson.build b/hw/intc/meson.build
index 1c299039f6..2482fcfaf8 100644
--- a/hw/intc/meson.build
+++ b/hw/intc/meson.build
@@ -48,7 +48,7 @@ specific_ss.add(when: 'CONFIG_RX_ICU', if_true:
files('rx_icu.c'))
specific_ss.add(when: 'CONFIG_S390_FLIC', if_true: files('s390_flic.c'))
specific_ss.add(when: 'CONFIG_S390_FLIC_KVM', if_true:
files('s390_flic_kvm.c'))
specific_ss.add(when: 'CONFIG_SH_INTC', if_true: files('sh_intc.c'))
-specific_ss.add(when: 'CONFIG_SIFIVE_CLINT', if_true: files('sifive_clint.c'))
+specific_ss.add(when: 'CONFIG_RISCV_ACLINT', if_true: files('riscv_aclint.c'))
specific_ss.add(when: 'CONFIG_SIFIVE_PLIC', if_true: files('sifive_plic.c'))
specific_ss.add(when: 'CONFIG_XICS', if_true: files('xics.c'))
specific_ss.add(when: ['CONFIG_KVM', 'CONFIG_XICS'],
diff --git a/hw/intc/riscv_aclint.c b/hw/intc/riscv_aclint.c
new file mode 100644
index 0000000000..682f95cca7
--- /dev/null
+++ b/hw/intc/riscv_aclint.c
@@ -0,0 +1,374 @@
+/*
+ * RISC-V ACLINT (Advanced Core Local Interruptor)
+ *
+ * Copyright (c) 2016-2017 Sagar Karandikar, sagark@eecs.berkeley.edu
+ * Copyright (c) 2017 SiFive, Inc.
+ * Copyright (c) 2021 Western Digital Corporation or its affiliates.
+ *
+ * This provides real-time clock, timer and interprocessor interrupts.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2 or later, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "qemu/osdep.h"
+#include "qapi/error.h"
+#include "qemu/error-report.h"
+#include "qemu/module.h"
+#include "hw/sysbus.h"
+#include "target/riscv/cpu.h"
+#include "hw/qdev-properties.h"
+#include "hw/intc/riscv_aclint.h"
+#include "qemu/timer.h"
+
+static uint64_t cpu_riscv_read_rtc(uint32_t timebase_freq)
+{
+ return muldiv64(qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL),
+ timebase_freq, NANOSECONDS_PER_SECOND);
+}
+
+/*
+ * Called when timecmp is written to update the QEMU timer or immediately
+ * trigger timer interrupt if mtimecmp <= current timer value.
+ */
+static void riscv_aclint_mtimer_write_timecmp(RISCVCPU *cpu, uint64_t value,
+ uint32_t timebase_freq)
+{
+ uint64_t next;
+ uint64_t diff;
+
+ uint64_t rtc_r = cpu_riscv_read_rtc(timebase_freq);
+
+ cpu->env.timecmp = value;
+ if (cpu->env.timecmp <= rtc_r) {
+ /* if we're setting an MTIMECMP value in the "past",
+ immediately raise the timer interrupt */
+ riscv_cpu_update_mip(cpu, MIP_MTIP, BOOL_TO_MASK(1));
+ return;
+ }
+
+ /* otherwise, set up the future timer interrupt */
+ riscv_cpu_update_mip(cpu, MIP_MTIP, BOOL_TO_MASK(0));
+ diff = cpu->env.timecmp - rtc_r;
+ /* back to ns (note args switched in muldiv64) */
+ next = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) +
+ muldiv64(diff, NANOSECONDS_PER_SECOND, timebase_freq);
+ timer_mod(cpu->env.timer, next);
+}
+
+/*
+ * Callback used when the timer set using timer_mod expires.
+ * Should raise the timer interrupt line
+ */
+static void riscv_aclint_mtimer_cb(void *opaque)
+{
+ RISCVCPU *cpu = opaque;
+ riscv_cpu_update_mip(cpu, MIP_MTIP, BOOL_TO_MASK(1));
+}
+
+/* CPU wants to read MTIMER register */
+static uint64_t riscv_aclint_mtimer_read(void *opaque, hwaddr addr,
+ unsigned size)
+{
+ RISCVAclintMTimerState *mtimer = opaque;
+
+ if (addr < (mtimer->num_harts << 3)) {
+ size_t hartid = mtimer->hartid_base + (addr >> 3);
+ CPUState *cpu = qemu_get_cpu(hartid);
+ CPURISCVState *env = cpu ? cpu->env_ptr : NULL;
+ if (!env) {
+ error_report("aclint-mtimer: invalid hartid: %zu", hartid);
+ } else if ((addr & 0x7) == 0) {
+ /* timecmp_lo */
+ uint64_t timecmp = env->timecmp;
+ return timecmp & 0xFFFFFFFF;
+ } else if ((addr & 0x7) == 4) {
+ /* timecmp_hi */
+ uint64_t timecmp = env->timecmp;
+ return (timecmp >> 32) & 0xFFFFFFFF;
+ } else {
+ error_report("aclint-mtimer: invalid read: %08x", (uint32_t)addr);
+ return 0;
+ }
+ } else if (addr == (mtimer->aperture_size - 8)) {
+ /* time_lo */
+ return cpu_riscv_read_rtc(mtimer->timebase_freq) & 0xFFFFFFFF;
+ } else if (addr == (mtimer->aperture_size - 4)) {
+ /* time_hi */
+ return (cpu_riscv_read_rtc(mtimer->timebase_freq) >> 32) & 0xFFFFFFFF;
+ }
+
+ error_report("aclint-mtimer: invalid read: %08x", (uint32_t)addr);
+ return 0;
+}
+
+/* CPU wrote MTIMER register */
+static void riscv_aclint_mtimer_write(void *opaque, hwaddr addr,
+ uint64_t value, unsigned size)
+{
+ RISCVAclintMTimerState *mtimer = opaque;
+
+ if (addr < (mtimer->num_harts << 3)) {
+ size_t hartid = mtimer->hartid_base + (addr >> 3);
+ CPUState *cpu = qemu_get_cpu(hartid);
+ CPURISCVState *env = cpu ? cpu->env_ptr : NULL;
+ if (!env) {
+ error_report("aclint-mtimer: invalid hartid: %zu", hartid);
+ } else if ((addr & 0x7) == 0) {
+ /* timecmp_lo */
+ uint64_t timecmp_hi = env->timecmp >> 32;
+ riscv_aclint_mtimer_write_timecmp(RISCV_CPU(cpu),
+ timecmp_hi << 32 | (value & 0xFFFFFFFF),
+ mtimer->timebase_freq);
+ return;
+ } else if ((addr & 0x7) == 4) {
+ /* timecmp_hi */
+ uint64_t timecmp_lo = env->timecmp;
+ riscv_aclint_mtimer_write_timecmp(RISCV_CPU(cpu),
+ value << 32 | (timecmp_lo & 0xFFFFFFFF),
+ mtimer->timebase_freq);
+ } else {
+ error_report("aclint-mtimer: invalid timecmp write: %08x",
+ (uint32_t)addr);
+ }
+ return;
+ } else if (addr == (mtimer->aperture_size - 8)) {
+ /* time_lo */
+ error_report("aclint-mtimer: time_lo write not implemented");
+ return;
+ } else if (addr == (mtimer->aperture_size - 4)) {
+ /* time_hi */
+ error_report("aclint-mtimer: time_hi write not implemented");
+ return;
+ }
+
+ error_report("aclint-mtimer: invalid write: %08x", (uint32_t)addr);
+}
+
+static const MemoryRegionOps riscv_aclint_mtimer_ops = {
+ .read = riscv_aclint_mtimer_read,
+ .write = riscv_aclint_mtimer_write,
+ .endianness = DEVICE_LITTLE_ENDIAN,
+ .valid = {
+ .min_access_size = 4,
+ .max_access_size = 8
+ }
+};
+
+static Property riscv_aclint_mtimer_properties[] = {
+ DEFINE_PROP_UINT32("hartid-base", RISCVAclintMTimerState,
+ hartid_base, 0),
+ DEFINE_PROP_UINT32("num-harts", RISCVAclintMTimerState, num_harts, 0),
+ DEFINE_PROP_UINT32("aperture-size", RISCVAclintMTimerState,
+ aperture_size, 0),
+ DEFINE_PROP_UINT32("timebase-freq", RISCVAclintMTimerState,
+ timebase_freq, 0),
+ DEFINE_PROP_END_OF_LIST(),
+};
+
+static void riscv_aclint_mtimer_realize(DeviceState *dev, Error **errp)
+{
+ int i;
+ RISCVCPU *cpu;
+ RISCVAclintMTimerState *s = RISCV_ACLINT_MTIMER(dev);
+
+ memory_region_init_io(&s->mmio, OBJECT(dev), &riscv_aclint_mtimer_ops, s,
+ TYPE_RISCV_ACLINT_MTIMER, s->aperture_size);
+ sysbus_init_mmio(SYS_BUS_DEVICE(dev), &s->mmio);
+
+ /* Claim MTIP so that only MTIMER controls it. */
+ for (i = 0; i < s->num_harts; i++) {
+ cpu = RISCV_CPU(qemu_get_cpu(s->hartid_base + i));
+ if (riscv_cpu_claim_interrupts(cpu, MIP_MTIP) < 0) {
+ error_report("MTIP already claimed");
+ exit(1);
+ }
+ }
+}
+
+static void riscv_aclint_mtimer_class_init(ObjectClass *klass, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(klass);
+ dc->realize = riscv_aclint_mtimer_realize;
+ device_class_set_props(dc, riscv_aclint_mtimer_properties);
+}
+
+static const TypeInfo riscv_aclint_mtimer_info = {
+ .name = TYPE_RISCV_ACLINT_MTIMER,
+ .parent = TYPE_SYS_BUS_DEVICE,
+ .instance_size = sizeof(RISCVAclintMTimerState),
+ .class_init = riscv_aclint_mtimer_class_init,
+};
+
+/*
+ * Create ACLINT MTIMER device.
+ */
+DeviceState *riscv_aclint_mtimer_create(hwaddr addr, hwaddr size,
+ uint32_t hartid_base, uint32_t num_harts, uint32_t timebase_freq,
+ bool provide_rdtime)
+{
+ int i;
+ for (i = 0; i < num_harts; i++) {
+ CPUState *cpu = qemu_get_cpu(hartid_base + i);
+ CPURISCVState *env = cpu ? cpu->env_ptr : NULL;
+ if (!env) {
+ continue;
+ }
+ if (provide_rdtime) {
+ riscv_cpu_set_rdtime_fn(env, cpu_riscv_read_rtc, timebase_freq);
+ }
+ env->timer = timer_new_ns(QEMU_CLOCK_VIRTUAL,
+ &riscv_aclint_mtimer_cb, cpu);
+ env->timecmp = 0;
+ }
+
+ DeviceState *dev = qdev_new(TYPE_RISCV_ACLINT_MTIMER);
+ qdev_prop_set_uint32(dev, "hartid-base", hartid_base);
+ qdev_prop_set_uint32(dev, "num-harts", num_harts);
+ qdev_prop_set_uint32(dev, "aperture-size", size);
+ qdev_prop_set_uint32(dev, "timebase-freq", timebase_freq);
+ sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal);
+ sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, addr);
+ return dev;
+}
+
+/* CPU read [M|S]SWI register */
+static uint64_t riscv_aclint_swi_read(void *opaque, hwaddr addr,
+ unsigned size)
+{
+ RISCVAclintSwiState *swi = opaque;
+
+ if (addr < (swi->num_harts << 2)) {
+ size_t hartid = swi->hartid_base + (addr >> 2);
+ CPUState *cpu = qemu_get_cpu(hartid);
+ CPURISCVState *env = cpu ? cpu->env_ptr : NULL;
+ if (!env) {
+ error_report("aclint-swi: invalid hartid: %zu", hartid);
+ } else if ((addr & 0x3) == 0) {
+ return (env->mip & swi->sirq_mask) > 0;
+ } else {
+ error_report("aclint-swi: invalid read: %08x", (uint32_t)addr);
+ return 0;
+ }
+ }
+
+ error_report("aclint-swi: invalid read: %08x", (uint32_t)addr);
+ return 0;
+}
+
+/* CPU wrote [M|S]SWI register */
+static void riscv_aclint_swi_write(void *opaque, hwaddr addr, uint64_t value,
+ unsigned size)
+{
+ RISCVAclintSwiState *swi = opaque;
+
+ if (addr < (swi->num_harts << 2)) {
+ size_t hartid = swi->hartid_base + (addr >> 2);
+ CPUState *cpu = qemu_get_cpu(hartid);
+ CPURISCVState *env = cpu ? cpu->env_ptr : NULL;
+ if (!env) {
+ error_report("aclint-swi: invalid hartid: %zu", hartid);
+ } else if ((addr & 0x3) == 0) {
+ riscv_cpu_update_mip(RISCV_CPU(cpu), swi->sirq_mask,
+ BOOL_TO_MASK(value));
+ } else {
+ error_report("aclint-swi: invalid [M|S]SIP write: %08x",
+ (uint32_t)addr);
+ }
+ return;
+ }
+
+ error_report("aclint-swi: invalid write: %08x", (uint32_t)addr);
+}
+
+static const MemoryRegionOps riscv_aclint_swi_ops = {
+ .read = riscv_aclint_swi_read,
+ .write = riscv_aclint_swi_write,
+ .endianness = DEVICE_LITTLE_ENDIAN,
+ .valid = {
+ .min_access_size = 4,
+ .max_access_size = 4
+ }
+};
+
+static Property riscv_aclint_swi_properties[] = {
+ DEFINE_PROP_UINT32("hartid-base", RISCVAclintSwiState, hartid_base, 0),
+ DEFINE_PROP_UINT32("num-harts", RISCVAclintSwiState, num_harts, 0),
+ DEFINE_PROP_UINT32("aperture-size", RISCVAclintSwiState,
+ aperture_size, 0),
+ DEFINE_PROP_UINT32("sirq-mask", RISCVAclintSwiState, sirq_mask, 0),
+ DEFINE_PROP_END_OF_LIST(),
+};
+
+static void riscv_aclint_swi_realize(DeviceState *dev, Error **errp)
+{
+ int i;
+ RISCVCPU *cpu;
+ RISCVAclintSwiState *s = RISCV_ACLINT_SWI(dev);
+
+ memory_region_init_io(&s->mmio, OBJECT(dev), &riscv_aclint_swi_ops, s,
+ TYPE_RISCV_ACLINT_SWI, s->aperture_size);
+ sysbus_init_mmio(SYS_BUS_DEVICE(dev), &s->mmio);
+
+ /* Claim [M|S]SIP so that can SWI controls it. */
+ for (i = 0; i < s->num_harts; i++) {
+ cpu = RISCV_CPU(qemu_get_cpu(s->hartid_base + i));
+
+ /* We don't claim SSIP bit of mip CSR because this bit is
+ * writable by software as-per RISC-V privilege specification.
+ */
+ if ((s->sirq_mask != MIP_SSIP) &&
+ riscv_cpu_claim_interrupts(cpu, s->sirq_mask) < 0) {
+ error_report("%s already claimed",
+ (s->sirq_mask == MIP_SSIP) ? "SSIP" : "MSIP");
+ exit(1);
+ }
+ }
+}
+
+static void riscv_aclint_swi_class_init(ObjectClass *klass, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(klass);
+ dc->realize = riscv_aclint_swi_realize;
+ device_class_set_props(dc, riscv_aclint_swi_properties);
+}
+
+static const TypeInfo riscv_aclint_swi_info = {
+ .name = TYPE_RISCV_ACLINT_SWI,
+ .parent = TYPE_SYS_BUS_DEVICE,
+ .instance_size = sizeof(RISCVAclintSwiState),
+ .class_init = riscv_aclint_swi_class_init,
+};
+
+/*
+ * Create ACLINT [M|S]SWI device.
+ */
+DeviceState *riscv_aclint_swi_create(hwaddr addr, hwaddr size,
+ uint32_t hartid_base, uint32_t num_harts, bool smode_swi)
+{
+ DeviceState *dev = qdev_new(TYPE_RISCV_ACLINT_SWI);
+ qdev_prop_set_uint32(dev, "hartid-base", hartid_base);
+ qdev_prop_set_uint32(dev, "num-harts", num_harts);
+ qdev_prop_set_uint32(dev, "aperture-size", size);
+ qdev_prop_set_uint32(dev, "sirq-mask", smode_swi ? MIP_SSIP : MIP_MSIP);
+ sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal);
+ sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, addr);
+ return dev;
+}
+
+static void riscv_aclint_register_types(void)
+{
+ type_register_static(&riscv_aclint_mtimer_info);
+ type_register_static(&riscv_aclint_swi_info);
+}
+
+type_init(riscv_aclint_register_types)
diff --git a/hw/intc/sifive_clint.c b/hw/intc/sifive_clint.c
deleted file mode 100644
index 0f41e5ea1c..0000000000
--- a/hw/intc/sifive_clint.c
+++ /dev/null
@@ -1,266 +0,0 @@
-/*
- * SiFive CLINT (Core Local Interruptor)
- *
- * Copyright (c) 2016-2017 Sagar Karandikar, sagark@eecs.berkeley.edu
- * Copyright (c) 2017 SiFive, Inc.
- *
- * This provides real-time clock, timer and interprocessor interrupts.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2 or later, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program. If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include "qemu/osdep.h"
-#include "qapi/error.h"
-#include "qemu/error-report.h"
-#include "qemu/module.h"
-#include "hw/sysbus.h"
-#include "target/riscv/cpu.h"
-#include "hw/qdev-properties.h"
-#include "hw/intc/sifive_clint.h"
-#include "qemu/timer.h"
-
-static uint64_t cpu_riscv_read_rtc(uint32_t timebase_freq)
-{
- return muldiv64(qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL),
- timebase_freq, NANOSECONDS_PER_SECOND);
-}
-
-/*
- * Called when timecmp is written to update the QEMU timer or immediately
- * trigger timer interrupt if mtimecmp <= current timer value.
- */
-static void sifive_clint_write_timecmp(RISCVCPU *cpu, uint64_t value,
- uint32_t timebase_freq)
-{
- uint64_t next;
- uint64_t diff;
-
- uint64_t rtc_r = cpu_riscv_read_rtc(timebase_freq);
-
- cpu->env.timecmp = value;
- if (cpu->env.timecmp <= rtc_r) {
- /* if we're setting an MTIMECMP value in the "past",
- immediately raise the timer interrupt */
- riscv_cpu_update_mip(cpu, MIP_MTIP, BOOL_TO_MASK(1));
- return;
- }
-
- /* otherwise, set up the future timer interrupt */
- riscv_cpu_update_mip(cpu, MIP_MTIP, BOOL_TO_MASK(0));
- diff = cpu->env.timecmp - rtc_r;
- /* back to ns (note args switched in muldiv64) */
- next = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) +
- muldiv64(diff, NANOSECONDS_PER_SECOND, timebase_freq);
- timer_mod(cpu->env.timer, next);
-}
-
-/*
- * Callback used when the timer set using timer_mod expires.
- * Should raise the timer interrupt line
- */
-static void sifive_clint_timer_cb(void *opaque)
-{
- RISCVCPU *cpu = opaque;
- riscv_cpu_update_mip(cpu, MIP_MTIP, BOOL_TO_MASK(1));
-}
-
-/* CPU wants to read rtc or timecmp register */
-static uint64_t sifive_clint_read(void *opaque, hwaddr addr, unsigned size)
-{
- SiFiveCLINTState *clint = opaque;
- if (addr >= clint->sip_base &&
- addr < clint->sip_base + (clint->num_harts << 2)) {
- size_t hartid = clint->hartid_base + ((addr - clint->sip_base) >> 2);
- CPUState *cpu = qemu_get_cpu(hartid);
- CPURISCVState *env = cpu ? cpu->env_ptr : NULL;
- if (!env) {
- error_report("clint: invalid timecmp hartid: %zu", hartid);
- } else if ((addr & 0x3) == 0) {
- return (env->mip & MIP_MSIP) > 0;
- } else {
- error_report("clint: invalid read: %08x", (uint32_t)addr);
- return 0;
- }
- } else if (addr >= clint->timecmp_base &&
- addr < clint->timecmp_base + (clint->num_harts << 3)) {
- size_t hartid = clint->hartid_base +
- ((addr - clint->timecmp_base) >> 3);
- CPUState *cpu = qemu_get_cpu(hartid);
- CPURISCVState *env = cpu ? cpu->env_ptr : NULL;
- if (!env) {
- error_report("clint: invalid timecmp hartid: %zu", hartid);
- } else if ((addr & 0x7) == 0) {
- /* timecmp_lo */
- uint64_t timecmp = env->timecmp;
- return timecmp & 0xFFFFFFFF;
- } else if ((addr & 0x7) == 4) {
- /* timecmp_hi */
- uint64_t timecmp = env->timecmp;
- return (timecmp >> 32) & 0xFFFFFFFF;
- } else {
- error_report("clint: invalid read: %08x", (uint32_t)addr);
- return 0;
- }
- } else if (addr == clint->time_base) {
- /* time_lo */
- return cpu_riscv_read_rtc(clint->timebase_freq) & 0xFFFFFFFF;
- } else if (addr == clint->time_base + 4) {
- /* time_hi */
- return (cpu_riscv_read_rtc(clint->timebase_freq) >> 32) & 0xFFFFFFFF;
- }
-
- error_report("clint: invalid read: %08x", (uint32_t)addr);
- return 0;
-}
-
-/* CPU wrote to rtc or timecmp register */
-static void sifive_clint_write(void *opaque, hwaddr addr, uint64_t value,
- unsigned size)
-{
- SiFiveCLINTState *clint = opaque;
-
- if (addr >= clint->sip_base &&
- addr < clint->sip_base + (clint->num_harts << 2)) {
- size_t hartid = clint->hartid_base + ((addr - clint->sip_base) >> 2);
- CPUState *cpu = qemu_get_cpu(hartid);
- CPURISCVState *env = cpu ? cpu->env_ptr : NULL;
- if (!env) {
- error_report("clint: invalid timecmp hartid: %zu", hartid);
- } else if ((addr & 0x3) == 0) {
- riscv_cpu_update_mip(RISCV_CPU(cpu), MIP_MSIP,
BOOL_TO_MASK(value));
- } else {
- error_report("clint: invalid sip write: %08x", (uint32_t)addr);
- }
- return;
- } else if (addr >= clint->timecmp_base &&
- addr < clint->timecmp_base + (clint->num_harts << 3)) {
- size_t hartid = clint->hartid_base +
- ((addr - clint->timecmp_base) >> 3);
- CPUState *cpu = qemu_get_cpu(hartid);
- CPURISCVState *env = cpu ? cpu->env_ptr : NULL;
- if (!env) {
- error_report("clint: invalid timecmp hartid: %zu", hartid);
- } else if ((addr & 0x7) == 0) {
- /* timecmp_lo */
- uint64_t timecmp_hi = env->timecmp >> 32;
- sifive_clint_write_timecmp(RISCV_CPU(cpu),
- timecmp_hi << 32 | (value & 0xFFFFFFFF), clint->timebase_freq);
- return;
- } else if ((addr & 0x7) == 4) {
- /* timecmp_hi */
- uint64_t timecmp_lo = env->timecmp;
- sifive_clint_write_timecmp(RISCV_CPU(cpu),
- value << 32 | (timecmp_lo & 0xFFFFFFFF), clint->timebase_freq);
- } else {
- error_report("clint: invalid timecmp write: %08x", (uint32_t)addr);
- }
- return;
- } else if (addr == clint->time_base) {
- /* time_lo */
- error_report("clint: time_lo write not implemented");
- return;
- } else if (addr == clint->time_base + 4) {
- /* time_hi */
- error_report("clint: time_hi write not implemented");
- return;
- }
-
- error_report("clint: invalid write: %08x", (uint32_t)addr);
-}
-
-static const MemoryRegionOps sifive_clint_ops = {
- .read = sifive_clint_read,
- .write = sifive_clint_write,
- .endianness = DEVICE_LITTLE_ENDIAN,
- .valid = {
- .min_access_size = 4,
- .max_access_size = 8
- }
-};
-
-static Property sifive_clint_properties[] = {
- DEFINE_PROP_UINT32("hartid-base", SiFiveCLINTState, hartid_base, 0),
- DEFINE_PROP_UINT32("num-harts", SiFiveCLINTState, num_harts, 0),
- DEFINE_PROP_UINT32("sip-base", SiFiveCLINTState, sip_base, 0),
- DEFINE_PROP_UINT32("timecmp-base", SiFiveCLINTState, timecmp_base, 0),
- DEFINE_PROP_UINT32("time-base", SiFiveCLINTState, time_base, 0),
- DEFINE_PROP_UINT32("aperture-size", SiFiveCLINTState, aperture_size, 0),
- DEFINE_PROP_UINT32("timebase-freq", SiFiveCLINTState, timebase_freq, 0),
- DEFINE_PROP_END_OF_LIST(),
-};
-
-static void sifive_clint_realize(DeviceState *dev, Error **errp)
-{
- SiFiveCLINTState *s = SIFIVE_CLINT(dev);
- memory_region_init_io(&s->mmio, OBJECT(dev), &sifive_clint_ops, s,
- TYPE_SIFIVE_CLINT, s->aperture_size);
- sysbus_init_mmio(SYS_BUS_DEVICE(dev), &s->mmio);
-}
-
-static void sifive_clint_class_init(ObjectClass *klass, void *data)
-{
- DeviceClass *dc = DEVICE_CLASS(klass);
- dc->realize = sifive_clint_realize;
- device_class_set_props(dc, sifive_clint_properties);
-}
-
-static const TypeInfo sifive_clint_info = {
- .name = TYPE_SIFIVE_CLINT,
- .parent = TYPE_SYS_BUS_DEVICE,
- .instance_size = sizeof(SiFiveCLINTState),
- .class_init = sifive_clint_class_init,
-};
-
-static void sifive_clint_register_types(void)
-{
- type_register_static(&sifive_clint_info);
-}
-
-type_init(sifive_clint_register_types)
-
-
-/*
- * Create CLINT device.
- */
-DeviceState *sifive_clint_create(hwaddr addr, hwaddr size,
- uint32_t hartid_base, uint32_t num_harts, uint32_t sip_base,
- uint32_t timecmp_base, uint32_t time_base, uint32_t timebase_freq,
- bool provide_rdtime)
-{
- int i;
- for (i = 0; i < num_harts; i++) {
- CPUState *cpu = qemu_get_cpu(hartid_base + i);
- CPURISCVState *env = cpu ? cpu->env_ptr : NULL;
- if (!env) {
- continue;
- }
- if (provide_rdtime) {
- riscv_cpu_set_rdtime_fn(env, cpu_riscv_read_rtc, timebase_freq);
- }
- env->timer = timer_new_ns(QEMU_CLOCK_VIRTUAL,
- &sifive_clint_timer_cb, cpu);
- env->timecmp = 0;
- }
-
- DeviceState *dev = qdev_new(TYPE_SIFIVE_CLINT);
- qdev_prop_set_uint32(dev, "hartid-base", hartid_base);
- qdev_prop_set_uint32(dev, "num-harts", num_harts);
- qdev_prop_set_uint32(dev, "sip-base", sip_base);
- qdev_prop_set_uint32(dev, "timecmp-base", timecmp_base);
- qdev_prop_set_uint32(dev, "time-base", time_base);
- qdev_prop_set_uint32(dev, "aperture-size", size);
- qdev_prop_set_uint32(dev, "timebase-freq", timebase_freq);
- sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal);
- sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, addr);
- return dev;
-}
diff --git a/hw/riscv/Kconfig b/hw/riscv/Kconfig
index 1de18cdcf1..939cd0ef40 100644
--- a/hw/riscv/Kconfig
+++ b/hw/riscv/Kconfig
@@ -9,7 +9,7 @@ config MICROCHIP_PFSOC
select MCHP_PFSOC_MMUART
select MCHP_PFSOC_SYSREG
select MSI_NONBROKEN
- select SIFIVE_CLINT
+ select RISCV_ACLINT
select SIFIVE_PDMA
select SIFIVE_PLIC
select UNIMP
@@ -29,7 +29,7 @@ config RISCV_VIRT
select PCI_EXPRESS_GENERIC_BRIDGE
select PFLASH_CFI01
select SERIAL
- select SIFIVE_CLINT
+ select RISCV_ACLINT
select SIFIVE_PLIC
select SIFIVE_TEST
select VIRTIO_MMIO
@@ -38,7 +38,7 @@ config RISCV_VIRT
config SIFIVE_E
bool
select MSI_NONBROKEN
- select SIFIVE_CLINT
+ select RISCV_ACLINT
select SIFIVE_GPIO
select SIFIVE_PLIC
select SIFIVE_UART
@@ -49,7 +49,7 @@ config SIFIVE_U
bool
select CADENCE
select MSI_NONBROKEN
- select SIFIVE_CLINT
+ select RISCV_ACLINT
select SIFIVE_GPIO
select SIFIVE_PDMA
select SIFIVE_PLIC
@@ -65,5 +65,5 @@ config SPIKE
bool
select HTIF
select MSI_NONBROKEN
- select SIFIVE_CLINT
+ select RISCV_ACLINT
select SIFIVE_PLIC
diff --git a/hw/riscv/microchip_pfsoc.c b/hw/riscv/microchip_pfsoc.c
index c4146b7a6b..e637e5c885 100644
--- a/hw/riscv/microchip_pfsoc.c
+++ b/hw/riscv/microchip_pfsoc.c
@@ -51,7 +51,7 @@
#include "hw/riscv/boot.h"
#include "hw/riscv/riscv_hart.h"
#include "hw/riscv/microchip_pfsoc.h"
-#include "hw/intc/sifive_clint.h"
+#include "hw/intc/riscv_aclint.h"
#include "hw/intc/sifive_plic.h"
#include "sysemu/sysemu.h"
@@ -235,10 +235,12 @@ static void microchip_pfsoc_soc_realize(DeviceState *dev,
Error **errp)
memmap[MICROCHIP_PFSOC_BUSERR_UNIT4].size);
/* CLINT */
- sifive_clint_create(memmap[MICROCHIP_PFSOC_CLINT].base,
- memmap[MICROCHIP_PFSOC_CLINT].size, 0, ms->smp.cpus,
- SIFIVE_SIP_BASE, SIFIVE_TIMECMP_BASE, SIFIVE_TIME_BASE,
- CLINT_TIMEBASE_FREQ, false);
+ riscv_aclint_swi_create(memmap[MICROCHIP_PFSOC_CLINT].base,
+ RISCV_ACLINT_SWI_SIZE, 0, ms->smp.cpus, false);
+ riscv_aclint_mtimer_create(
+ memmap[MICROCHIP_PFSOC_CLINT].base + RISCV_ACLINT_SWI_SIZE,
+ RISCV_ACLINT_MTIMER_SIZE, 0, ms->smp.cpus,
+ RISCV_ACLINT_TIMEBASE_FREQ, false);
/* L2 cache controller */
create_unimplemented_device("microchip.pfsoc.l2cc",
diff --git a/hw/riscv/sifive_e.c b/hw/riscv/sifive_e.c
index f939bcf9ea..ea960a5f2e 100644
--- a/hw/riscv/sifive_e.c
+++ b/hw/riscv/sifive_e.c
@@ -42,7 +42,7 @@
#include "hw/riscv/sifive_e.h"
#include "hw/riscv/boot.h"
#include "hw/char/sifive_uart.h"
-#include "hw/intc/sifive_clint.h"
+#include "hw/intc/riscv_aclint.h"
#include "hw/intc/sifive_plic.h"
#include "hw/misc/sifive_e_prci.h"
#include "chardev/char.h"
@@ -210,10 +210,12 @@ static void sifive_e_soc_realize(DeviceState *dev, Error
**errp)
SIFIVE_E_PLIC_CONTEXT_BASE,
SIFIVE_E_PLIC_CONTEXT_STRIDE,
memmap[SIFIVE_E_DEV_PLIC].size);
- sifive_clint_create(memmap[SIFIVE_E_DEV_CLINT].base,
- memmap[SIFIVE_E_DEV_CLINT].size, 0, ms->smp.cpus,
- SIFIVE_SIP_BASE, SIFIVE_TIMECMP_BASE, SIFIVE_TIME_BASE,
- SIFIVE_CLINT_TIMEBASE_FREQ, false);
+ riscv_aclint_swi_create(memmap[SIFIVE_E_DEV_CLINT].base,
+ RISCV_ACLINT_SWI_SIZE, 0, ms->smp.cpus, false);
+ riscv_aclint_mtimer_create(memmap[SIFIVE_E_DEV_CLINT].base +
+ RISCV_ACLINT_SWI_SIZE,
+ RISCV_ACLINT_MTIMER_SIZE, 0, ms->smp.cpus,
+ RISCV_ACLINT_TIMEBASE_FREQ, false);
create_unimplemented_device("riscv.sifive.e.aon",
memmap[SIFIVE_E_DEV_AON].base, memmap[SIFIVE_E_DEV_AON].size);
sifive_e_prci_create(memmap[SIFIVE_E_DEV_PRCI].base);
diff --git a/hw/riscv/sifive_u.c b/hw/riscv/sifive_u.c
index 7b59942369..e5fe681984 100644
--- a/hw/riscv/sifive_u.c
+++ b/hw/riscv/sifive_u.c
@@ -52,7 +52,7 @@
#include "hw/riscv/sifive_u.h"
#include "hw/riscv/boot.h"
#include "hw/char/sifive_uart.h"
-#include "hw/intc/sifive_clint.h"
+#include "hw/intc/riscv_aclint.h"
#include "hw/intc/sifive_plic.h"
#include "chardev/char.h"
#include "net/eth.h"
@@ -160,7 +160,7 @@ static void create_fdt(SiFiveUState *s, const MemMapEntry
*memmap,
qemu_fdt_add_subnode(fdt, "/cpus");
qemu_fdt_setprop_cell(fdt, "/cpus", "timebase-frequency",
- SIFIVE_CLINT_TIMEBASE_FREQ);
+ RISCV_ACLINT_TIMEBASE_FREQ);
qemu_fdt_setprop_cell(fdt, "/cpus", "#size-cells", 0x0);
qemu_fdt_setprop_cell(fdt, "/cpus", "#address-cells", 0x1);
@@ -839,10 +839,12 @@ static void sifive_u_soc_realize(DeviceState *dev, Error
**errp)
serial_hd(0), qdev_get_gpio_in(DEVICE(s->plic), SIFIVE_U_UART0_IRQ));
sifive_uart_create(system_memory, memmap[SIFIVE_U_DEV_UART1].base,
serial_hd(1), qdev_get_gpio_in(DEVICE(s->plic), SIFIVE_U_UART1_IRQ));
- sifive_clint_create(memmap[SIFIVE_U_DEV_CLINT].base,
- memmap[SIFIVE_U_DEV_CLINT].size, 0, ms->smp.cpus,
- SIFIVE_SIP_BASE, SIFIVE_TIMECMP_BASE, SIFIVE_TIME_BASE,
- SIFIVE_CLINT_TIMEBASE_FREQ, false);
+ riscv_aclint_swi_create(memmap[SIFIVE_U_DEV_CLINT].base,
+ RISCV_ACLINT_SWI_SIZE, 0, ms->smp.cpus, false);
+ riscv_aclint_mtimer_create(memmap[SIFIVE_U_DEV_CLINT].base +
+ RISCV_ACLINT_SWI_SIZE,
+ RISCV_ACLINT_MTIMER_SIZE, 0, ms->smp.cpus,
+ RISCV_ACLINT_TIMEBASE_FREQ, false);
if (!sysbus_realize(SYS_BUS_DEVICE(&s->prci), errp)) {
return;
diff --git a/hw/riscv/spike.c b/hw/riscv/spike.c
index ec7cb2f707..10681fbf99 100644
--- a/hw/riscv/spike.c
+++ b/hw/riscv/spike.c
@@ -36,7 +36,7 @@
#include "hw/riscv/boot.h"
#include "hw/riscv/numa.h"
#include "hw/char/riscv_htif.h"
-#include "hw/intc/sifive_clint.h"
+#include "hw/intc/riscv_aclint.h"
#include "chardev/char.h"
#include "sysemu/arch_init.h"
#include "sysemu/device_tree.h"
@@ -83,7 +83,7 @@ static void create_fdt(SpikeState *s, const MemMapEntry
*memmap,
qemu_fdt_add_subnode(fdt, "/cpus");
qemu_fdt_setprop_cell(fdt, "/cpus", "timebase-frequency",
- SIFIVE_CLINT_TIMEBASE_FREQ);
+ RISCV_ACLINT_TIMEBASE_FREQ);
qemu_fdt_setprop_cell(fdt, "/cpus", "#size-cells", 0x0);
qemu_fdt_setprop_cell(fdt, "/cpus", "#address-cells", 0x1);
qemu_fdt_add_subnode(fdt, "/cpus/cpu-map");
@@ -225,11 +225,14 @@ static void spike_board_init(MachineState *machine)
sysbus_realize(SYS_BUS_DEVICE(&s->soc[i]), &error_abort);
/* Core Local Interruptor (timer and IPI) for each socket */
- sifive_clint_create(
+ riscv_aclint_swi_create(
memmap[SPIKE_CLINT].base + i * memmap[SPIKE_CLINT].size,
- memmap[SPIKE_CLINT].size, base_hartid, hart_count,
- SIFIVE_SIP_BASE, SIFIVE_TIMECMP_BASE, SIFIVE_TIME_BASE,
- SIFIVE_CLINT_TIMEBASE_FREQ, false);
+ RISCV_ACLINT_SWI_SIZE, base_hartid, hart_count, false);
+ riscv_aclint_mtimer_create(
+ memmap[SPIKE_CLINT].base + i * memmap[SPIKE_CLINT].size +
+ RISCV_ACLINT_SWI_SIZE,
+ RISCV_ACLINT_MTIMER_SIZE, base_hartid, hart_count,
+ RISCV_ACLINT_TIMEBASE_FREQ, false);
}
/* register system main memory (actual RAM) */
diff --git a/hw/riscv/virt.c b/hw/riscv/virt.c
index c0dc69ff33..5eb63f6efd 100644
--- a/hw/riscv/virt.c
+++ b/hw/riscv/virt.c
@@ -33,7 +33,7 @@
#include "hw/riscv/virt.h"
#include "hw/riscv/boot.h"
#include "hw/riscv/numa.h"
-#include "hw/intc/sifive_clint.h"
+#include "hw/intc/riscv_aclint.h"
#include "hw/intc/sifive_plic.h"
#include "hw/misc/sifive_test.h"
#include "chardev/char.h"
@@ -224,7 +224,7 @@ static void create_fdt(RISCVVirtState *s, const MemMapEntry
*memmap,
qemu_fdt_add_subnode(fdt, "/cpus");
qemu_fdt_setprop_cell(fdt, "/cpus", "timebase-frequency",
- SIFIVE_CLINT_TIMEBASE_FREQ);
+ RISCV_ACLINT_TIMEBASE_FREQ);
qemu_fdt_setprop_cell(fdt, "/cpus", "#size-cells", 0x0);
qemu_fdt_setprop_cell(fdt, "/cpus", "#address-cells", 0x1);
qemu_fdt_add_subnode(fdt, "/cpus/cpu-map");
@@ -587,11 +587,14 @@ static void virt_machine_init(MachineState *machine)
sysbus_realize(SYS_BUS_DEVICE(&s->soc[i]), &error_abort);
/* Per-socket CLINT */
- sifive_clint_create(
+ riscv_aclint_swi_create(
memmap[VIRT_CLINT].base + i * memmap[VIRT_CLINT].size,
- memmap[VIRT_CLINT].size, base_hartid, hart_count,
- SIFIVE_SIP_BASE, SIFIVE_TIMECMP_BASE, SIFIVE_TIME_BASE,
- SIFIVE_CLINT_TIMEBASE_FREQ, true);
+ RISCV_ACLINT_SWI_SIZE, base_hartid, hart_count, false);
+ riscv_aclint_mtimer_create(
+ memmap[VIRT_CLINT].base + i * memmap[VIRT_CLINT].size +
+ RISCV_ACLINT_SWI_SIZE,
+ RISCV_ACLINT_MTIMER_SIZE, base_hartid, hart_count,
+ RISCV_ACLINT_TIMEBASE_FREQ, true);
/* Per-socket PLIC hart topology configuration string */
plic_hart_config_len =
diff --git a/include/hw/intc/riscv_aclint.h b/include/hw/intc/riscv_aclint.h
new file mode 100644
index 0000000000..471a5ffd0b
--- /dev/null
+++ b/include/hw/intc/riscv_aclint.h
@@ -0,0 +1,73 @@
+/*
+ * RISC-V ACLINT (Advanced Core Local Interruptor) interface
+ *
+ * Copyright (c) 2016-2017 Sagar Karandikar, sagark@eecs.berkeley.edu
+ * Copyright (c) 2017 SiFive, Inc.
+ * Copyright (c) 2021 Western Digital Corporation or its affiliates.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2 or later, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef HW_RISCV_ACLINT_H
+#define HW_RISCV_ACLINT_H
+
+#include "hw/sysbus.h"
+
+#define TYPE_RISCV_ACLINT_MTIMER "riscv.aclint.mtimer"
+
+#define RISCV_ACLINT_MTIMER(obj) \
+ OBJECT_CHECK(RISCVAclintMTimerState, (obj), TYPE_RISCV_ACLINT_MTIMER)
+
+typedef struct RISCVAclintMTimerState {
+ /*< private >*/
+ SysBusDevice parent_obj;
+
+ /*< public >*/
+ MemoryRegion mmio;
+ uint32_t hartid_base;
+ uint32_t num_harts;
+ uint32_t aperture_size;
+ uint32_t timebase_freq;
+} RISCVAclintMTimerState;
+
+DeviceState *riscv_aclint_mtimer_create(hwaddr addr, hwaddr size,
+ uint32_t hartid_base, uint32_t num_harts, uint32_t timebase_freq,
+ bool provide_rdtime);
+
+#define TYPE_RISCV_ACLINT_SWI "riscv.aclint.swi"
+
+#define RISCV_ACLINT_SWI(obj) \
+ OBJECT_CHECK(RISCVAclintSwiState, (obj), TYPE_RISCV_ACLINT_SWI)
+
+typedef struct RISCVAclintSwiState {
+ /*< private >*/
+ SysBusDevice parent_obj;
+
+ /*< public >*/
+ MemoryRegion mmio;
+ uint32_t hartid_base;
+ uint32_t num_harts;
+ uint32_t aperture_size;
+ uint32_t sirq_mask;
+} RISCVAclintSwiState;
+
+DeviceState *riscv_aclint_swi_create(hwaddr addr, hwaddr size,
+ uint32_t hartid_base, uint32_t num_harts, bool smode_swi);
+
+enum {
+ RISCV_ACLINT_MTIMER_SIZE = 0x8000,
+ RISCV_ACLINT_TIMEBASE_FREQ = 10000000,
+ RISCV_ACLINT_SWI_SIZE = 0x4000
+};
+
+#endif
diff --git a/include/hw/intc/sifive_clint.h b/include/hw/intc/sifive_clint.h
deleted file mode 100644
index a30be0f3d6..0000000000
--- a/include/hw/intc/sifive_clint.h
+++ /dev/null
@@ -1,60 +0,0 @@
-/*
- * SiFive CLINT (Core Local Interruptor) interface
- *
- * Copyright (c) 2016-2017 Sagar Karandikar, sagark@eecs.berkeley.edu
- * Copyright (c) 2017 SiFive, Inc.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2 or later, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program. If not, see <http://www.gnu.org/licenses/>.
- */
-
-#ifndef HW_SIFIVE_CLINT_H
-#define HW_SIFIVE_CLINT_H
-
-#include "hw/sysbus.h"
-
-#define TYPE_SIFIVE_CLINT "riscv.sifive.clint"
-
-#define SIFIVE_CLINT(obj) \
- OBJECT_CHECK(SiFiveCLINTState, (obj), TYPE_SIFIVE_CLINT)
-
-typedef struct SiFiveCLINTState {
- /*< private >*/
- SysBusDevice parent_obj;
-
- /*< public >*/
- MemoryRegion mmio;
- uint32_t hartid_base;
- uint32_t num_harts;
- uint32_t sip_base;
- uint32_t timecmp_base;
- uint32_t time_base;
- uint32_t aperture_size;
- uint32_t timebase_freq;
-} SiFiveCLINTState;
-
-DeviceState *sifive_clint_create(hwaddr addr, hwaddr size,
- uint32_t hartid_base, uint32_t num_harts, uint32_t sip_base,
- uint32_t timecmp_base, uint32_t time_base, uint32_t timebase_freq,
- bool provide_rdtime);
-
-enum {
- SIFIVE_SIP_BASE = 0x0,
- SIFIVE_TIMECMP_BASE = 0x4000,
- SIFIVE_TIME_BASE = 0xBFF8
-};
-
-enum {
- SIFIVE_CLINT_TIMEBASE_FREQ = 10000000
-};
-
-#endif
--
2.25.1