diff options
author | Edgar E. Iglesias <edgar.iglesias@xilinx.com> | 2022-03-16 17:46:44 +0100 |
---|---|---|
committer | Peter Maydell <peter.maydell@linaro.org> | 2022-03-18 11:31:20 +0000 |
commit | b4ecda2dd79b3ee8747d5dc935c28738ab9297a9 (patch) | |
tree | 2d122e8ae9817773abee46c9a667b9637b6e61d0 | |
parent | 63320bcaed89642044500ec017c0acb592220831 (diff) |
hw/misc: Add a model of the Xilinx ZynqMP APU Control
Add a model of the Xilinx ZynqMP APU Control.
Reviewed-by: Luc Michel <luc@lmichel.fr>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Message-id: 20220316164645.2303510-6-edgar.iglesias@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
-rw-r--r-- | hw/misc/meson.build | 1 | ||||
-rw-r--r-- | hw/misc/xlnx-zynqmp-apu-ctrl.c | 253 | ||||
-rw-r--r-- | include/hw/misc/xlnx-zynqmp-apu-ctrl.h | 93 |
3 files changed, 347 insertions, 0 deletions
diff --git a/hw/misc/meson.build b/hw/misc/meson.build index 61397f3bbb..6fb69612e0 100644 --- a/hw/misc/meson.build +++ b/hw/misc/meson.build @@ -85,6 +85,7 @@ softmmu_ss.add(when: 'CONFIG_RASPI', if_true: files( softmmu_ss.add(when: 'CONFIG_SLAVIO', if_true: files('slavio_misc.c')) softmmu_ss.add(when: 'CONFIG_ZYNQ', if_true: files('zynq_slcr.c')) specific_ss.add(when: 'CONFIG_XLNX_ZYNQMP_ARM', if_true: files('xlnx-zynqmp-crf.c')) +specific_ss.add(when: 'CONFIG_XLNX_ZYNQMP_ARM', if_true: files('xlnx-zynqmp-apu-ctrl.c')) softmmu_ss.add(when: 'CONFIG_XLNX_VERSAL', if_true: files( 'xlnx-versal-xramc.c', 'xlnx-versal-pmc-iou-slcr.c', diff --git a/hw/misc/xlnx-zynqmp-apu-ctrl.c b/hw/misc/xlnx-zynqmp-apu-ctrl.c new file mode 100644 index 0000000000..20de23cf67 --- /dev/null +++ b/hw/misc/xlnx-zynqmp-apu-ctrl.c @@ -0,0 +1,253 @@ +/* + * QEMU model of the ZynqMP APU Control. + * + * Copyright (c) 2013-2022 Xilinx Inc + * SPDX-License-Identifier: GPL-2.0-or-later + * + * Written by Peter Crosthwaite <peter.crosthwaite@xilinx.com> and + * Edgar E. Iglesias <edgar.iglesias@xilinx.com> + */ + +#include "qemu/osdep.h" +#include "qapi/error.h" +#include "qemu/log.h" +#include "migration/vmstate.h" +#include "hw/qdev-properties.h" +#include "hw/sysbus.h" +#include "hw/irq.h" +#include "hw/register.h" + +#include "qemu/bitops.h" +#include "qapi/qmp/qerror.h" + +#include "hw/misc/xlnx-zynqmp-apu-ctrl.h" + +#ifndef XILINX_ZYNQMP_APU_ERR_DEBUG +#define XILINX_ZYNQMP_APU_ERR_DEBUG 0 +#endif + +static void update_wfi_out(void *opaque) +{ + XlnxZynqMPAPUCtrl *s = XLNX_ZYNQMP_APU_CTRL(opaque); + unsigned int i, wfi_pending; + + wfi_pending = s->cpu_pwrdwn_req & s->cpu_in_wfi; + for (i = 0; i < APU_MAX_CPU; i++) { + qemu_set_irq(s->wfi_out[i], !!(wfi_pending & (1 << i))); + } +} + +static void zynqmp_apu_rvbar_post_write(RegisterInfo *reg, uint64_t val) +{ + XlnxZynqMPAPUCtrl *s = XLNX_ZYNQMP_APU_CTRL(reg->opaque); + int i; + + for (i = 0; i < APU_MAX_CPU; ++i) { + uint64_t rvbar = s->regs[R_RVBARADDR0L + 2 * i] + + ((uint64_t)s->regs[R_RVBARADDR0H + 2 * i] << 32); + if (s->cpus[i]) { + object_property_set_int(OBJECT(s->cpus[i]), "rvbar", rvbar, + &error_abort); + } + } +} + +static void zynqmp_apu_pwrctl_post_write(RegisterInfo *reg, uint64_t val) +{ + XlnxZynqMPAPUCtrl *s = XLNX_ZYNQMP_APU_CTRL(reg->opaque); + unsigned int i, new; + + for (i = 0; i < APU_MAX_CPU; i++) { + new = val & (1 << i); + /* Check if CPU's CPUPWRDNREQ has changed. If yes, update GPIOs. */ + if (new != (s->cpu_pwrdwn_req & (1 << i))) { + qemu_set_irq(s->cpu_power_status[i], !!new); + } + s->cpu_pwrdwn_req &= ~(1 << i); + s->cpu_pwrdwn_req |= new; + } + update_wfi_out(s); +} + +static void imr_update_irq(XlnxZynqMPAPUCtrl *s) +{ + bool pending = s->regs[R_ISR] & ~s->regs[R_IMR]; + qemu_set_irq(s->irq_imr, pending); +} + +static void isr_postw(RegisterInfo *reg, uint64_t val64) +{ + XlnxZynqMPAPUCtrl *s = XLNX_ZYNQMP_APU_CTRL(reg->opaque); + imr_update_irq(s); +} + +static uint64_t ien_prew(RegisterInfo *reg, uint64_t val64) +{ + XlnxZynqMPAPUCtrl *s = XLNX_ZYNQMP_APU_CTRL(reg->opaque); + uint32_t val = val64; + + s->regs[R_IMR] &= ~val; + imr_update_irq(s); + return 0; +} + +static uint64_t ids_prew(RegisterInfo *reg, uint64_t val64) +{ + XlnxZynqMPAPUCtrl *s = XLNX_ZYNQMP_APU_CTRL(reg->opaque); + uint32_t val = val64; + + s->regs[R_IMR] |= val; + imr_update_irq(s); + return 0; +} + +static const RegisterAccessInfo zynqmp_apu_regs_info[] = { +#define RVBAR_REGDEF(n) \ + { .name = "RVBAR CPU " #n " Low", .addr = A_RVBARADDR ## n ## L, \ + .reset = 0xffff0000ul, \ + .post_write = zynqmp_apu_rvbar_post_write, \ + },{ .name = "RVBAR CPU " #n " High", .addr = A_RVBARADDR ## n ## H, \ + .post_write = zynqmp_apu_rvbar_post_write, \ + } + { .name = "ERR_CTRL", .addr = A_APU_ERR_CTRL, + },{ .name = "ISR", .addr = A_ISR, + .w1c = 0x1, + .post_write = isr_postw, + },{ .name = "IMR", .addr = A_IMR, + .reset = 0x1, + .ro = 0x1, + },{ .name = "IEN", .addr = A_IEN, + .pre_write = ien_prew, + },{ .name = "IDS", .addr = A_IDS, + .pre_write = ids_prew, + },{ .name = "CONFIG_0", .addr = A_CONFIG_0, + .reset = 0xf0f, + },{ .name = "CONFIG_1", .addr = A_CONFIG_1, + }, + RVBAR_REGDEF(0), + RVBAR_REGDEF(1), + RVBAR_REGDEF(2), + RVBAR_REGDEF(3), + { .name = "ACE_CTRL", .addr = A_ACE_CTRL, + .reset = 0xf000f, + },{ .name = "SNOOP_CTRL", .addr = A_SNOOP_CTRL, + },{ .name = "PWRCTL", .addr = A_PWRCTL, + .post_write = zynqmp_apu_pwrctl_post_write, + },{ .name = "PWRSTAT", .addr = A_PWRSTAT, + .ro = 0x3000f, + } +}; + +static void zynqmp_apu_reset_enter(Object *obj, ResetType type) +{ + XlnxZynqMPAPUCtrl *s = XLNX_ZYNQMP_APU_CTRL(obj); + int i; + + for (i = 0; i < APU_R_MAX; ++i) { + register_reset(&s->regs_info[i]); + } + + s->cpu_pwrdwn_req = 0; + s->cpu_in_wfi = 0; +} + +static void zynqmp_apu_reset_hold(Object *obj) +{ + XlnxZynqMPAPUCtrl *s = XLNX_ZYNQMP_APU_CTRL(obj); + + update_wfi_out(s); + imr_update_irq(s); +} + +static const MemoryRegionOps zynqmp_apu_ops = { + .read = register_read_memory, + .write = register_write_memory, + .endianness = DEVICE_LITTLE_ENDIAN, + .valid = { + .min_access_size = 4, + .max_access_size = 4, + } +}; + +static void zynqmp_apu_handle_wfi(void *opaque, int irq, int level) +{ + XlnxZynqMPAPUCtrl *s = XLNX_ZYNQMP_APU_CTRL(opaque); + + s->cpu_in_wfi = deposit32(s->cpu_in_wfi, irq, 1, level); + update_wfi_out(s); +} + +static void zynqmp_apu_init(Object *obj) +{ + XlnxZynqMPAPUCtrl *s = XLNX_ZYNQMP_APU_CTRL(obj); + int i; + + s->reg_array = + register_init_block32(DEVICE(obj), zynqmp_apu_regs_info, + ARRAY_SIZE(zynqmp_apu_regs_info), + s->regs_info, s->regs, + &zynqmp_apu_ops, + XILINX_ZYNQMP_APU_ERR_DEBUG, + APU_R_MAX * 4); + sysbus_init_mmio(SYS_BUS_DEVICE(obj), &s->reg_array->mem); + sysbus_init_irq(SYS_BUS_DEVICE(obj), &s->irq_imr); + + for (i = 0; i < APU_MAX_CPU; ++i) { + g_autofree gchar *prop_name = g_strdup_printf("cpu%d", i); + object_property_add_link(obj, prop_name, TYPE_ARM_CPU, + (Object **)&s->cpus[i], + qdev_prop_allow_set_link_before_realize, + OBJ_PROP_LINK_STRONG); + } + + /* wfi_out is used to connect to PMU GPIs. */ + qdev_init_gpio_out_named(DEVICE(obj), s->wfi_out, "wfi_out", 4); + /* CPU_POWER_STATUS is used to connect to INTC redirect. */ + qdev_init_gpio_out_named(DEVICE(obj), s->cpu_power_status, + "CPU_POWER_STATUS", 4); + /* wfi_in is used as input from CPUs as wfi request. */ + qdev_init_gpio_in_named(DEVICE(obj), zynqmp_apu_handle_wfi, "wfi_in", 4); +} + +static void zynqmp_apu_finalize(Object *obj) +{ + XlnxZynqMPAPUCtrl *s = XLNX_ZYNQMP_APU_CTRL(obj); + register_finalize_block(s->reg_array); +} + +static const VMStateDescription vmstate_zynqmp_apu = { + .name = TYPE_XLNX_ZYNQMP_APU_CTRL, + .version_id = 1, + .minimum_version_id = 1, + .fields = (VMStateField[]) { + VMSTATE_UINT32_ARRAY(regs, XlnxZynqMPAPUCtrl, APU_R_MAX), + VMSTATE_END_OF_LIST(), + } +}; + +static void zynqmp_apu_class_init(ObjectClass *klass, void *data) +{ + ResettableClass *rc = RESETTABLE_CLASS(klass); + DeviceClass *dc = DEVICE_CLASS(klass); + + dc->vmsd = &vmstate_zynqmp_apu; + + rc->phases.enter = zynqmp_apu_reset_enter; + rc->phases.hold = zynqmp_apu_reset_hold; +} + +static const TypeInfo zynqmp_apu_info = { + .name = TYPE_XLNX_ZYNQMP_APU_CTRL, + .parent = TYPE_SYS_BUS_DEVICE, + .instance_size = sizeof(XlnxZynqMPAPUCtrl), + .class_init = zynqmp_apu_class_init, + .instance_init = zynqmp_apu_init, + .instance_finalize = zynqmp_apu_finalize, +}; + +static void zynqmp_apu_register_types(void) +{ + type_register_static(&zynqmp_apu_info); +} + +type_init(zynqmp_apu_register_types) diff --git a/include/hw/misc/xlnx-zynqmp-apu-ctrl.h b/include/hw/misc/xlnx-zynqmp-apu-ctrl.h new file mode 100644 index 0000000000..b8ca9434af --- /dev/null +++ b/include/hw/misc/xlnx-zynqmp-apu-ctrl.h @@ -0,0 +1,93 @@ +/* + * QEMU model of ZynqMP APU Control. + * + * Copyright (c) 2013-2022 Xilinx Inc + * SPDX-License-Identifier: GPL-2.0-or-later + * + * Written by Peter Crosthwaite <peter.crosthwaite@xilinx.com> and + * Edgar E. Iglesias <edgar.iglesias@xilinx.com> + * + */ +#ifndef HW_MISC_XLNX_ZYNQMP_APU_CTRL_H +#define HW_MISC_XLNX_ZYNQMP_APU_CTRL_H + +#include "hw/sysbus.h" +#include "hw/register.h" +#include "target/arm/cpu.h" + +#define TYPE_XLNX_ZYNQMP_APU_CTRL "xlnx.apu-ctrl" +OBJECT_DECLARE_SIMPLE_TYPE(XlnxZynqMPAPUCtrl, XLNX_ZYNQMP_APU_CTRL) + +REG32(APU_ERR_CTRL, 0x0) + FIELD(APU_ERR_CTRL, PSLVERR, 0, 1) +REG32(ISR, 0x10) + FIELD(ISR, INV_APB, 0, 1) +REG32(IMR, 0x14) + FIELD(IMR, INV_APB, 0, 1) +REG32(IEN, 0x18) + FIELD(IEN, INV_APB, 0, 1) +REG32(IDS, 0x1c) + FIELD(IDS, INV_APB, 0, 1) +REG32(CONFIG_0, 0x20) + FIELD(CONFIG_0, CFGTE, 24, 4) + FIELD(CONFIG_0, CFGEND, 16, 4) + FIELD(CONFIG_0, VINITHI, 8, 4) + FIELD(CONFIG_0, AA64NAA32, 0, 4) +REG32(CONFIG_1, 0x24) + FIELD(CONFIG_1, L2RSTDISABLE, 29, 1) + FIELD(CONFIG_1, L1RSTDISABLE, 28, 1) + FIELD(CONFIG_1, CP15DISABLE, 0, 4) +REG32(RVBARADDR0L, 0x40) + FIELD(RVBARADDR0L, ADDR, 2, 30) +REG32(RVBARADDR0H, 0x44) + FIELD(RVBARADDR0H, ADDR, 0, 8) +REG32(RVBARADDR1L, 0x48) + FIELD(RVBARADDR1L, ADDR, 2, 30) +REG32(RVBARADDR1H, 0x4c) + FIELD(RVBARADDR1H, ADDR, 0, 8) +REG32(RVBARADDR2L, 0x50) + FIELD(RVBARADDR2L, ADDR, 2, 30) +REG32(RVBARADDR2H, 0x54) + FIELD(RVBARADDR2H, ADDR, 0, 8) +REG32(RVBARADDR3L, 0x58) + FIELD(RVBARADDR3L, ADDR, 2, 30) +REG32(RVBARADDR3H, 0x5c) + FIELD(RVBARADDR3H, ADDR, 0, 8) +REG32(ACE_CTRL, 0x60) + FIELD(ACE_CTRL, AWQOS, 16, 4) + FIELD(ACE_CTRL, ARQOS, 0, 4) +REG32(SNOOP_CTRL, 0x80) + FIELD(SNOOP_CTRL, ACE_INACT, 4, 1) + FIELD(SNOOP_CTRL, ACP_INACT, 0, 1) +REG32(PWRCTL, 0x90) + FIELD(PWRCTL, CLREXMONREQ, 17, 1) + FIELD(PWRCTL, L2FLUSHREQ, 16, 1) + FIELD(PWRCTL, CPUPWRDWNREQ, 0, 4) +REG32(PWRSTAT, 0x94) + FIELD(PWRSTAT, CLREXMONACK, 17, 1) + FIELD(PWRSTAT, L2FLUSHDONE, 16, 1) + FIELD(PWRSTAT, DBGNOPWRDWN, 0, 4) + +#define APU_R_MAX ((R_PWRSTAT) + 1) + +#define APU_MAX_CPU 4 + +struct XlnxZynqMPAPUCtrl { + SysBusDevice busdev; + + ARMCPU *cpus[APU_MAX_CPU]; + /* WFIs towards PMU. */ + qemu_irq wfi_out[4]; + /* CPU Power status towards INTC Redirect. */ + qemu_irq cpu_power_status[4]; + qemu_irq irq_imr; + + uint8_t cpu_pwrdwn_req; + uint8_t cpu_in_wfi; + + RegisterInfoArray *reg_array; + uint32_t regs[APU_R_MAX]; + RegisterInfo regs_info[APU_R_MAX]; +}; + +#endif |