Add the Xilinx ZynqMP Inter Processor Interrupt device.
Signed-off-by: Alistair Francis <alistair.fran...@xilinx.com>
---
hw/intc/Makefile.objs | 1 +
hw/intc/xlnx-zynqmp-ipi.c | 263 ++++++++++++++++++++++++++++++++++++++
include/hw/intc/xlnx-zynqmp-ipi.h | 116 +++++++++++++++++
3 files changed, 380 insertions(+)
create mode 100644 hw/intc/xlnx-zynqmp-ipi.c
create mode 100644 include/hw/intc/xlnx-zynqmp-ipi.h
diff --git a/hw/intc/Makefile.objs b/hw/intc/Makefile.objs
index 530df2e..2f63bd7 100644
--- a/hw/intc/Makefile.objs
+++ b/hw/intc/Makefile.objs
@@ -37,3 +37,4 @@ obj-$(CONFIG_S390_FLIC) += s390_flic.o
obj-$(CONFIG_S390_FLIC_KVM) += s390_flic_kvm.o
obj-$(CONFIG_ASPEED_SOC) += aspeed_vic.o
obj-$(CONFIG_ARM_GIC) += arm_gicv3_cpuif.o
+obj-$(CONFIG_XLNX_ZYNQMP) += xlnx-zynqmp-ipi.o
diff --git a/hw/intc/xlnx-zynqmp-ipi.c b/hw/intc/xlnx-zynqmp-ipi.c
new file mode 100644
index 0000000..f5f9c97
--- /dev/null
+++ b/hw/intc/xlnx-zynqmp-ipi.c
@@ -0,0 +1,263 @@
+/*
+ * QEMU model of the Xilinx ZynqMP Inter Processor Interrupt block
+ *
+ * Copyright (c) 2016 Xilinx Inc.
+ * Written by Edgar E. Iglesias <edgar.igles...@xilinx.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include "qemu/osdep.h"
+#include "hw/sysbus.h"
+#include "qemu/bitops.h"
+#include "qemu/log.h"
+#include "hw/intc/xlnx-zynqmp-ipi.h"
+
+#ifndef XLNX_ZYNQMP_IPI_ERR_DEBUG
+#define XLNX_ZYNQMP_IPI_ERR_DEBUG 0
+#endif
+
+#define DB_PRINT_L(lvl, fmt, args...) do {\
+ if (XLNX_ZYNQMP_IPI_ERR_DEBUG >= lvl) {\
+ qemu_log(TYPE_XLNX_ZYNQMP_IPI ": %s:" fmt, __func__, ## args);\
+ } \
+} while (0);
+
+#define DB_PRINT(fmt, args...) DB_PRINT_L(1, fmt, ## args)
+
+static void xlnx_zynqmp_ipi_update_irq(XlnxZynqMPIPI *s)
+{
+ bool pending = s->regs[R_IPI_ISR] & ~s->regs[R_IPI_IMR];
+
+ DB_PRINT("%s: irq=%d isr=%x mask=%x\n",
+ object_get_canonical_path(OBJECT(s)),
+ pending, s->regs[R_IPI_ISR], s->regs[R_IPI_IMR]);
+
+ qemu_set_irq(s->irq, pending);
+}
+
+static void xlnx_zynqmp_ipi_isr_postw(RegisterInfo *reg, uint64_t val64)
+{
+ XlnxZynqMPIPI *s = XLNX_ZYNQMP_IPI(reg->opaque);
+
+ xlnx_zynqmp_ipi_update_irq(s);
+}
+
+static uint64_t xlnx_zynqmp_ipi_ier_prew(RegisterInfo *reg, uint64_t val64)
+{
+ XlnxZynqMPIPI *s = XLNX_ZYNQMP_IPI(reg->opaque);
+ uint32_t val = val64;
+
+ s->regs[R_IPI_IMR] &= ~val;
+ xlnx_zynqmp_ipi_update_irq(s);
+
+ return 0;
+}
+
+static uint64_t xlnx_zynqmp_ipi_idr_prew(RegisterInfo *reg, uint64_t val64)
+{
+ XlnxZynqMPIPI *s = XLNX_ZYNQMP_IPI(reg->opaque);
+ uint32_t val = val64;
+
+ s->regs[R_IPI_IMR] |= val;
+ xlnx_zynqmp_ipi_update_irq(s);
+
+ return 0;
+}
+
+static void xlnx_zynqmp_ipi_trig_postw(RegisterInfo *reg, uint64_t val64)
+{
+ XlnxZynqMPIPI *s = XLNX_ZYNQMP_IPI(reg->opaque);
+ uint64_t old_value = s->regs[R_IPI_TRIG];
+
+ /* TRIG generates a pulse on the outbound signals. We use the
+ * post-write callback to bring the signal back-down.
+ */
+ s->regs[R_IPI_TRIG] = 0;
+ register_refresh_gpios(reg, old_value, XLNX_ZYNQMP_IPI_ERR_DEBUG);
+}
+
+static RegisterAccessInfo xlnx_zynqmp_ipi_regs_info[] = {
+ { .name = "IPI_TRIG", .addr = A_IPI_TRIG,
+ .rsvd = 0xf0f0fcfe, .ro = 0xf0f0fcfe,
+ .post_write = xlnx_zynqmp_ipi_trig_postw,
+ .gpios = (RegisterGPIOMapping[]) {
+ { .name = "APU", .bit_pos = R_IPI_TRIG_APU_SHIFT, .width = 1 },
+ { .name = "RPU_0", .bit_pos = R_IPI_TRIG_RPU_0_SHIFT, .width = 1 },
+ { .name = "RPU_1", .bit_pos = R_IPI_TRIG_RPU_1_SHIFT, .width = 1 },
+ { .name = "PMU_0", .bit_pos = R_IPI_TRIG_PMU_0_SHIFT, .width = 1 },
+ { .name = "PMU_1", .bit_pos = R_IPI_TRIG_PMU_1_SHIFT, .width = 1 },
+ { .name = "PMU_2", .bit_pos = R_IPI_TRIG_PMU_2_SHIFT, .width = 1 },
+ { .name = "PMU_3", .bit_pos = R_IPI_TRIG_PMU_3_SHIFT, .width = 1 },
+ { .name = "PL_0", .bit_pos = R_IPI_TRIG_PL_0_SHIFT, .width = 1 },
+ { .name = "PL_1", .bit_pos = R_IPI_TRIG_PL_1_SHIFT, .width = 1 },
+ { .name = "PL_2", .bit_pos = R_IPI_TRIG_PL_2_SHIFT, .width = 1 },
+ { .name = "PL_3", .bit_pos = R_IPI_TRIG_PL_3_SHIFT, .width = 1 },
+ { },
+ }
+ },{ .name = "IPI_OBS", .addr = A_IPI_OBS,
+ .rsvd = 0xf0f0fcfe, .ro = 0xffffffff,
+ },{ .name = "IPI_ISR", .addr = A_IPI_ISR,
+ .rsvd = 0xf0f0fcfe, .ro = 0xf0f0fcfe, .w1c = 0xf0f0301,
+ .post_write = xlnx_zynqmp_ipi_isr_postw,
+ .gpios = (RegisterGPIOMapping[]) {
+ { .name = "OBS_APU", .bit_pos = R_IPI_ISR_APU_SHIFT, .width = 1 },
+ { .name = "OBS_RPU_0", .bit_pos = R_IPI_ISR_RPU_0_SHIFT,
+ .width = 1 },
+ { .name = "OBS_RPU_1", .bit_pos = R_IPI_ISR_RPU_1_SHIFT,
+ .width = 1 },
+ { .name = "OBS_PMU_0", .bit_pos = R_IPI_ISR_PMU_0_SHIFT,
+ .width = 1 },
+ { .name = "OBS_PMU_1", .bit_pos = R_IPI_ISR_PMU_1_SHIFT,
+ .width = 1 },
+ { .name = "OBS_PMU_2", .bit_pos = R_IPI_ISR_PMU_2_SHIFT,
+ .width = 1 },
+ { .name = "OBS_PMU_3", .bit_pos = R_IPI_ISR_PMU_3_SHIFT,
+ .width = 1 },
+ { .name = "OBS_PL_0", .bit_pos = R_IPI_ISR_PL_0_SHIFT,
+ .width = 1 },
+ { .name = "OBS_PL_1", .bit_pos = R_IPI_ISR_PL_1_SHIFT,
+ .width = 1 },
+ { .name = "OBS_PL_2", .bit_pos = R_IPI_ISR_PL_2_SHIFT,
+ .width = 1 },
+ { .name = "OBS_PL_3", .bit_pos = R_IPI_ISR_PL_3_SHIFT,
+ .width = 1 },
+ { },
+ }
+ },{ .name = "IPI_IMR", .addr = A_IPI_IMR,
+ .reset = 0xf0f0301, .rsvd = 0xf0f0fcfe,
+ .ro = 0xffffffff,
+ },{ .name = "IPI_IER", .addr = A_IPI_IER,
+ .rsvd = 0xf0f0fcfe, .ro = 0xf0f0fcfe,
+ .pre_write = xlnx_zynqmp_ipi_ier_prew,
+ },{ .name = "IPI_IDR", .addr = A_IPI_IDR,
+ .rsvd = 0xf0f0fcfe, .ro = 0xf0f0fcfe,
+ .pre_write = xlnx_zynqmp_ipi_idr_prew,
+ }
+};
+
+static void xlnx_zynqmp_ipi_reset(DeviceState *dev)
+{
+ XlnxZynqMPIPI *s = XLNX_ZYNQMP_IPI(dev);
+ unsigned int i;
+
+ for (i = 0; i < ARRAY_SIZE(s->regs_info); ++i) {
+ register_reset(&s->regs_info[i]);
+ }
+
+ xlnx_zynqmp_ipi_update_irq(s);
+}
+
+static void xlnx_zynqmp_ipi_handler(void *opaque, int n, int level)
+{
+ XlnxZynqMPIPI *s = XLNX_ZYNQMP_IPI(opaque);
+ RegisterInfo *r_isr = &s->regs_info[A_IPI_ISR / 4];
+
+ uint32_t val = (!!level) << n;
+ uint64_t old_value = s->regs[R_IPI_ISR];
+
+ DB_PRINT("%s: %s: irq[%d]=%d\n", __func__,
+ object_get_canonical_path(OBJECT(s)), n, level);
+
+ s->regs[R_IPI_ISR] |= val;
+
+ xlnx_zynqmp_ipi_update_irq(s);
+ register_refresh_gpios(r_isr, old_value, XLNX_ZYNQMP_IPI_ERR_DEBUG);
+}
+
+static void xlnx_zynqmp_obs_handler(void *opaque, int n, int level)
+{
+ XlnxZynqMPIPI *s = XLNX_ZYNQMP_IPI(opaque);
+
+ s->regs[R_IPI_OBS] &= ~(1ULL << n);
+ s->regs[R_IPI_OBS] |= (level << n);
+}
+
+static const MemoryRegionOps xlnx_zynqmp_ipi_ops = {
+ .read = register_read_memory,
+ .write = register_write_memory,
+ .endianness = DEVICE_LITTLE_ENDIAN,
+ .valid = {
+ .min_access_size = 4,
+ .max_access_size = 4,
+ },
+};
+
+static void xlnx_zynqmp_ipi_realize(DeviceState *dev, Error **errp)
+{
+ qdev_init_gpio_in_named(dev, xlnx_zynqmp_ipi_handler, "IPI_INPUTS", 32);
+ qdev_init_gpio_in_named(dev, xlnx_zynqmp_obs_handler, "OBS_INPUTS", 32);
+}
+
+static void xlnx_zynqmp_ipi_init(Object *obj)
+{
+ XlnxZynqMPIPI *s = XLNX_ZYNQMP_IPI(obj);
+ SysBusDevice *sbd = SYS_BUS_DEVICE(obj);
+ RegisterInfoArray *reg_array;
+
+ memory_region_init_io(&s->iomem, obj, &xlnx_zynqmp_ipi_ops, s,
+ TYPE_XLNX_ZYNQMP_IPI, R_MAX * 4);
+ reg_array =
+ register_init_block32(DEVICE(obj), xlnx_zynqmp_ipi_regs_info,
+ ARRAY_SIZE(xlnx_zynqmp_ipi_regs_info),
+ s->regs_info, s->regs,
+ &xlnx_zynqmp_ipi_ops, XLNX_ZYNQMP_IPI_ERR_DEBUG,
+ R_MAX);
+ memory_region_add_subregion(&s->iomem,
+ A_IPI_IDR,
+ ®_array->mem);
+
+ sysbus_init_mmio(sbd, &s->iomem);
+ sysbus_init_irq(sbd, &s->irq);
+}
+
+static const VMStateDescription vmstate_ipi = {
+ .name = TYPE_XLNX_ZYNQMP_IPI,
+ .version_id = 1,
+ .minimum_version_id = 1,
+ .minimum_version_id_old = 1,
+ .fields = (VMStateField[]) {
+ VMSTATE_UINT32_ARRAY(regs, XlnxZynqMPIPI, R_MAX),
+ VMSTATE_END_OF_LIST(),
+ }
+};
+
+static void xlnx_zynqmp_ipi_class_init(ObjectClass *klass, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(klass);
+
+ dc->reset = xlnx_zynqmp_ipi_reset;
+ dc->realize = xlnx_zynqmp_ipi_realize;
+ dc->vmsd = &vmstate_ipi;
+}
+
+static const TypeInfo xlnx_zynqmp_ipi_info = {
+ .name = TYPE_XLNX_ZYNQMP_IPI,
+ .parent = TYPE_SYS_BUS_DEVICE,
+ .instance_size = sizeof(XlnxZynqMPIPI),
+ .class_init = xlnx_zynqmp_ipi_class_init,
+ .instance_init = xlnx_zynqmp_ipi_init,
+};
+
+static void xlnx_zynqmp_ipi_register_types(void)
+{
+ type_register_static(&xlnx_zynqmp_ipi_info);
+}
+
+type_init(xlnx_zynqmp_ipi_register_types)
diff --git a/include/hw/intc/xlnx-zynqmp-ipi.h
b/include/hw/intc/xlnx-zynqmp-ipi.h
new file mode 100644
index 0000000..065d130
--- /dev/null
+++ b/include/hw/intc/xlnx-zynqmp-ipi.h
@@ -0,0 +1,116 @@
+/*
+ * QEMU model of the Xilinx ZynqMP Inter Processor Interrupt block
+ *
+ * Copyright (c) 2016 Xilinx Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include "qemu/osdep.h"
+#include "hw/register.h"
+
+#define TYPE_XLNX_ZYNQMP_IPI "xlnx.zynqmp.ipi"
+
+#define XLNX_ZYNQMP_IPI(obj) \
+ OBJECT_CHECK(XlnxZynqMPIPI, (obj), TYPE_XLNX_ZYNQMP_IPI)
+
+REG32(IPI_TRIG, 0x0)
+ FIELD(IPI_TRIG, PL_3, 27, 1)
+ FIELD(IPI_TRIG, PL_2, 26, 1)
+ FIELD(IPI_TRIG, PL_1, 25, 1)
+ FIELD(IPI_TRIG, PL_0, 24, 1)
+ FIELD(IPI_TRIG, PMU_3, 19, 1)
+ FIELD(IPI_TRIG, PMU_2, 18, 1)
+ FIELD(IPI_TRIG, PMU_1, 17, 1)
+ FIELD(IPI_TRIG, PMU_0, 16, 1)
+ FIELD(IPI_TRIG, RPU_1, 9, 1)
+ FIELD(IPI_TRIG, RPU_0, 8, 1)
+ FIELD(IPI_TRIG, APU, 0, 1)
+REG32(IPI_OBS, 0x4)
+ FIELD(IPI_OBS, PL_3, 27, 1)
+ FIELD(IPI_OBS, PL_2, 26, 1)
+ FIELD(IPI_OBS, PL_1, 25, 1)
+ FIELD(IPI_OBS, PL_0, 24, 1)
+ FIELD(IPI_OBS, PMU_3, 19, 1)
+ FIELD(IPI_OBS, PMU_2, 18, 1)
+ FIELD(IPI_OBS, PMU_1, 17, 1)
+ FIELD(IPI_OBS, PMU_0, 16, 1)
+ FIELD(IPI_OBS, RPU_1, 9, 1)
+ FIELD(IPI_OBS, RPU_0, 8, 1)
+ FIELD(IPI_OBS, APU, 0, 1)
+REG32(IPI_ISR, 0x10)
+ FIELD(IPI_ISR, PL_3, 27, 1)
+ FIELD(IPI_ISR, PL_2, 26, 1)
+ FIELD(IPI_ISR, PL_1, 25, 1)
+ FIELD(IPI_ISR, PL_0, 24, 1)
+ FIELD(IPI_ISR, PMU_3, 19, 1)
+ FIELD(IPI_ISR, PMU_2, 18, 1)
+ FIELD(IPI_ISR, PMU_1, 17, 1)
+ FIELD(IPI_ISR, PMU_0, 16, 1)
+ FIELD(IPI_ISR, RPU_1, 9, 1)
+ FIELD(IPI_ISR, RPU_0, 8, 1)
+ FIELD(IPI_ISR, APU, 0, 1)
+REG32(IPI_IMR, 0x14)
+ FIELD(IPI_IMR, PL_3, 27, 1)
+ FIELD(IPI_IMR, PL_2, 26, 1)
+ FIELD(IPI_IMR, PL_1, 25, 1)
+ FIELD(IPI_IMR, PL_0, 24, 1)
+ FIELD(IPI_IMR, PMU_3, 19, 1)
+ FIELD(IPI_IMR, PMU_2, 18, 1)
+ FIELD(IPI_IMR, PMU_1, 17, 1)
+ FIELD(IPI_IMR, PMU_0, 16, 1)
+ FIELD(IPI_IMR, RPU_1, 9, 1)
+ FIELD(IPI_IMR, RPU_0, 8, 1)
+ FIELD(IPI_IMR, APU, 0, 1)
+REG32(IPI_IER, 0x18)
+ FIELD(IPI_IER, PL_3, 27, 1)
+ FIELD(IPI_IER, PL_2, 26, 1)
+ FIELD(IPI_IER, PL_1, 25, 1)
+ FIELD(IPI_IER, PL_0, 24, 1)
+ FIELD(IPI_IER, PMU_3, 19, 1)
+ FIELD(IPI_IER, PMU_2, 18, 1)
+ FIELD(IPI_IER, PMU_1, 17, 1)
+ FIELD(IPI_IER, PMU_0, 16, 1)
+ FIELD(IPI_IER, RPU_1, 9, 1)
+ FIELD(IPI_IER, RPU_0, 8, 1)
+ FIELD(IPI_IER, APU, 0, 1)
+REG32(IPI_IDR, 0x1c)
+ FIELD(IPI_IDR, PL_3, 27, 1)
+ FIELD(IPI_IDR, PL_2, 26, 1)
+ FIELD(IPI_IDR, PL_1, 25, 1)
+ FIELD(IPI_IDR, PL_0, 24, 1)
+ FIELD(IPI_IDR, PMU_3, 19, 1)
+ FIELD(IPI_IDR, PMU_2, 18, 1)
+ FIELD(IPI_IDR, PMU_1, 17, 1)
+ FIELD(IPI_IDR, PMU_0, 16, 1)
+ FIELD(IPI_IDR, RPU_1, 9, 1)
+ FIELD(IPI_IDR, RPU_0, 8, 1)
+ FIELD(IPI_IDR, APU, 0, 1)
+
+#define R_MAX (R_IPI_IDR + 1)
+
+typedef struct XlnxZynqMPIPI {
+ SysBusDevice parent_obj;
+
+ MemoryRegion iomem;
+ qemu_irq irq;
+
+ uint32_t regs[R_MAX];
+ RegisterInfo regs_info[R_MAX];
+} XlnxZynqMPIPI;
--
2.7.4
