From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-10.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 91732C49ED9 for ; Thu, 12 Sep 2019 06:25:55 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 5552B20830 for ; Thu, 12 Sep 2019 06:25:55 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 5552B20830 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=users.sourceforge.jp Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:58476 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1i8IYE-0004qu-2p for qemu-devel@archiver.kernel.org; Thu, 12 Sep 2019 02:25:54 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:37075) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1i8IGF-0002RR-Tk for qemu-devel@nongnu.org; Thu, 12 Sep 2019 02:07:24 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1i8IG9-0008AU-HU for qemu-devel@nongnu.org; Thu, 12 Sep 2019 02:07:19 -0400 Received: from mail02.asahi-net.or.jp ([202.224.55.14]:45500) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1i8IG8-00088b-S4 for qemu-devel@nongnu.org; Thu, 12 Sep 2019 02:07:13 -0400 Received: from h61-195-96-97.vps.ablenet.jp (h61-195-96-97.ablenetvps.ne.jp [61.195.96.97]) (Authenticated sender: PQ4Y-STU) by mail02.asahi-net.or.jp (Postfix) with ESMTPA id 7027D6AC5B; Thu, 12 Sep 2019 15:07:10 +0900 (JST) Received: from yo-satoh-debian.localdomain (ae227063.dynamic.ppp.asahi-net.or.jp [14.3.227.63]) by h61-195-96-97.vps.ablenet.jp (Postfix) with ESMTPSA id 2D484240085; Thu, 12 Sep 2019 15:07:10 +0900 (JST) From: Yoshinori Sato To: qemu-devel@nongnu.org Date: Thu, 12 Sep 2019 15:06:53 +0900 Message-Id: <20190912060701.4642-15-ysato@users.sourceforge.jp> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190912060701.4642-1-ysato@users.sourceforge.jp> References: <20190912060701.4642-1-ysato@users.sourceforge.jp> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 202.224.55.14 Subject: [Qemu-devel] [PATCH v24 14/22] hw/intc: RX62N interrupt controller (ICUa) X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: peter.maydell@linaro.org, Yoshinori Sato , philmd@redhat.com, richard.henderson@linaro.org, imammedo@redhat.com, =?UTF-8?q?Alex=20Benn=C3=A9e?= Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" This implementation supported only ICUa. Hardware manual. https://www.renesas.com/us/en/doc/products/mpumcu/doc/rx_family/r01uh0033= ej0140_rx62n.pdf Signed-off-by: Yoshinori Sato Reviewed-by: Alex Benn=C3=A9e Reviewed-by: Philippe Mathieu-Daud=C3=A9 Message-Id: <20190607091116.49044-6-ysato@users.sourceforge.jp> Tested-by: Philippe Mathieu-Daud=C3=A9 Signed-off-by: Richard Henderson --- include/hw/intc/rx_icu.h | 56 ++++++ hw/intc/rx_icu.c | 379 +++++++++++++++++++++++++++++++++++++++ hw/intc/Kconfig | 3 + hw/intc/Makefile.objs | 1 + 4 files changed, 439 insertions(+) create mode 100644 include/hw/intc/rx_icu.h create mode 100644 hw/intc/rx_icu.c diff --git a/include/hw/intc/rx_icu.h b/include/hw/intc/rx_icu.h new file mode 100644 index 0000000000..acfcf06aef --- /dev/null +++ b/include/hw/intc/rx_icu.h @@ -0,0 +1,56 @@ +#ifndef RX_ICU_H +#define RX_ICU_H + +#include "qemu-common.h" +#include "hw/irq.h" + +enum TRG_MODE { + TRG_LEVEL =3D 0, + TRG_NEDGE =3D 1, /* Falling */ + TRG_PEDGE =3D 2, /* Raising */ + TRG_BEDGE =3D 3, /* Both */ +}; + +struct IRQSource { + enum TRG_MODE sense; + int level; +}; + +enum { + /* Software interrupt request */ + SWI =3D 27, + NR_IRQS =3D 256, +}; + +struct RXICUState { + SysBusDevice parent_obj; + + MemoryRegion memory; + struct IRQSource src[NR_IRQS]; + char *icutype; + uint32_t nr_irqs; + uint32_t *map; + uint32_t nr_sense; + uint32_t *init_sense; + + uint8_t ir[NR_IRQS]; + uint8_t dtcer[NR_IRQS]; + uint8_t ier[NR_IRQS / 8]; + uint8_t ipr[142]; + uint8_t dmasr[4]; + uint16_t fir; + uint8_t nmisr; + uint8_t nmier; + uint8_t nmiclr; + uint8_t nmicr; + int req_irq; + qemu_irq _irq; + qemu_irq _fir; + qemu_irq _swi; +}; +typedef struct RXICUState RXICUState; + +#define TYPE_RXICU "rx-icu" +#define RXICU(obj) OBJECT_CHECK(RXICUState, (obj), TYPE_RXICU) + +#endif /* RX_ICU_H */ diff --git a/hw/intc/rx_icu.c b/hw/intc/rx_icu.c new file mode 100644 index 0000000000..ac4dcbfe37 --- /dev/null +++ b/hw/intc/rx_icu.c @@ -0,0 +1,379 @@ +/* + * RX Interrupt Control Unit + * + * Warning: Only ICUa is supported. + * + * Datasheet: RX62N Group, RX621 Group User's Manual: Hardware + * (Rev.1.40 R01UH0033EJ0140) + * + * Copyright (c) 2019 Yoshinori Sato + * + * 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 WITHOU= T + * 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 alo= ng with + * this program. If not, see . + */ + +#include "qemu/osdep.h" +#include "qemu-common.h" +#include "qemu/log.h" +#include "qapi/error.h" +#include "cpu.h" +#include "hw/hw.h" +#include "hw/irq.h" +#include "hw/sysbus.h" +#include "hw/registerfields.h" +#include "hw/qdev-properties.h" +#include "hw/intc/rx_icu.h" +#include "migration/vmstate.h" +#include "qemu/error-report.h" + +REG8(IR, 0) + FIELD(IR, IR, 0, 1) +REG8(DTCER, 0x100) + FIELD(DTCER, DTCE, 0, 1) +REG8(IER, 0x200) +REG8(SWINTR, 0x2e0) + FIELD(SWINTR, SWINT, 0, 1) +REG16(FIR, 0x2f0) + FIELD(FIR, FVCT, 0, 8) + FIELD(FIR, FIEN, 15, 1) +REG8(IPR, 0x300) + FIELD(IPR, IPR, 0, 4) +REG8(DMRSR, 0x400) +REG8(IRQCR, 0x500) + FIELD(IRQCR, IRQMD, 2, 2) +REG8(NMISR, 0x580) + FIELD(NMISR, NMIST, 0, 1) + FIELD(NMISR, LVDST, 1, 1) + FIELD(NMISR, OSTST, 2, 1) +REG8(NMIER, 0x581) + FIELD(NMIER, NMIEN, 0, 1) + FIELD(NMIER, LVDEN, 1, 1) + FIELD(NMIER, OSTEN, 2, 1) +REG8(NMICLR, 0x582) + FIELD(NMICLR, NMICLR, 0, 1) + FIELD(NMICLR, OSTCLR, 2, 1) +REG8(NMICR, 0x583) + FIELD(NMICR, NMIMD, 3, 1) + +#define request(icu, n) (icu->ipr[icu->map[n]] << 8 | n) + +static void set_irq(RXICUState *icu, int n_IRQ, int req) +{ + if ((icu->fir & R_FIR_FIEN_MASK) && + (icu->fir & R_FIR_FVCT_MASK) =3D=3D n_IRQ) { + qemu_set_irq(icu->_fir, req); + } else { + qemu_set_irq(icu->_irq, req); + } +} + +static void rxicu_request(RXICUState *icu, int n_IRQ) +{ + int enable; + + enable =3D icu->ier[n_IRQ / 8] & (1 << (n_IRQ & 7)); + if (n_IRQ > 0 && enable !=3D 0 && atomic_read(&icu->req_irq) < 0) { + atomic_set(&icu->req_irq, n_IRQ); + set_irq(icu, n_IRQ, request(icu, n_IRQ)); + } +} + +static void rxicu_set_irq(void *opaque, int n_IRQ, int level) +{ + RXICUState *icu =3D opaque; + struct IRQSource *src; + int issue; + + if (n_IRQ >=3D NR_IRQS) { + error_report("%s: IRQ %d out of range", __func__, n_IRQ); + return; + } + + src =3D &icu->src[n_IRQ]; + + level =3D (level !=3D 0); + switch (src->sense) { + case TRG_LEVEL: + /* level-sensitive irq */ + issue =3D level; + src->level =3D level; + break; + case TRG_NEDGE: + issue =3D (level =3D=3D 0 && src->level =3D=3D 1); + src->level =3D level; + break; + case TRG_PEDGE: + issue =3D (level =3D=3D 1 && src->level =3D=3D 0); + src->level =3D level; + break; + case TRG_BEDGE: + issue =3D ((level ^ src->level) & 1); + src->level =3D level; + break; + default: + g_assert_not_reached(); + } + if (issue =3D=3D 0 && src->sense =3D=3D TRG_LEVEL) { + icu->ir[n_IRQ] =3D 0; + if (atomic_read(&icu->req_irq) =3D=3D n_IRQ) { + /* clear request */ + set_irq(icu, n_IRQ, 0); + atomic_set(&icu->req_irq, -1); + } + return; + } + if (issue) { + icu->ir[n_IRQ] =3D 1; + rxicu_request(icu, n_IRQ); + } +} + +static void rxicu_ack_irq(void *opaque, int no, int level) +{ + RXICUState *icu =3D opaque; + int i; + int n_IRQ; + int max_pri; + + n_IRQ =3D atomic_read(&icu->req_irq); + if (n_IRQ < 0) { + return; + } + atomic_set(&icu->req_irq, -1); + if (icu->src[n_IRQ].sense !=3D TRG_LEVEL) { + icu->ir[n_IRQ] =3D 0; + } + + max_pri =3D 0; + n_IRQ =3D -1; + for (i =3D 0; i < NR_IRQS; i++) { + if (icu->ir[i]) { + if (max_pri < icu->ipr[icu->map[i]]) { + n_IRQ =3D i; + max_pri =3D icu->ipr[icu->map[i]]; + } + } + } + + if (n_IRQ >=3D 0) { + rxicu_request(icu, n_IRQ); + } +} + +static uint64_t icu_read(void *opaque, hwaddr addr, unsigned size) +{ + RXICUState *icu =3D opaque; + int reg =3D addr & 0xff; + + if ((addr !=3D A_FIR && size !=3D 1) || + (addr =3D=3D A_FIR && size !=3D 2)) { + qemu_log_mask(LOG_GUEST_ERROR, "rx_icu: Invalid read size 0x%" + HWADDR_PRIX "\n", addr); + return UINT64_MAX; + } + switch (addr) { + case A_IR ... A_IR + 0xff: + return icu->ir[reg] & R_IR_IR_MASK; + case A_DTCER ... A_DTCER + 0xff: + return icu->dtcer[reg] & R_DTCER_DTCE_MASK; + case A_IER ... A_IER + 0x1f: + return icu->ier[reg]; + case A_SWINTR: + return 0; + case A_FIR: + return icu->fir & (R_FIR_FIEN_MASK | R_FIR_FVCT_MASK); + case A_IPR ... A_IPR + 0x8f: + return icu->ipr[reg] & R_IPR_IPR_MASK; + case A_DMRSR: + case A_DMRSR + 4: + case A_DMRSR + 8: + case A_DMRSR + 12: + return icu->dmasr[reg >> 2]; + case A_IRQCR ... A_IRQCR + 0x1f: + return icu->src[64 + reg].sense << R_IRQCR_IRQMD_SHIFT; + case A_NMISR: + case A_NMICLR: + return 0; + case A_NMIER: + return icu->nmier; + case A_NMICR: + return icu->nmicr; + default: + qemu_log_mask(LOG_UNIMP, "rx_icu: Register 0x%" HWADDR_PRIX + " not implemented.\n", addr); + break; + } + return UINT64_MAX; +} + +static void icu_write(void *opaque, hwaddr addr, uint64_t val, unsigned = size) +{ + RXICUState *icu =3D opaque; + int reg =3D addr & 0xff; + + if ((addr !=3D A_FIR && size !=3D 1) || + (addr =3D=3D A_FIR && size !=3D 2)) { + qemu_log_mask(LOG_GUEST_ERROR, "rx_icu: Invalid write size at 0x= %" + HWADDR_PRIX "\n", addr); + return; + } + switch (addr) { + case A_IR ... A_IR + 0xff: + if (icu->src[reg].sense !=3D TRG_LEVEL && val =3D=3D 0) { + icu->ir[reg] =3D 0; + } + break; + case A_DTCER ... A_DTCER + 0xff: + icu->dtcer[reg] =3D val & R_DTCER_DTCE_MASK; + qemu_log_mask(LOG_UNIMP, + "rx_icu: DTC not implemented\n"); + break; + case A_IER ... A_IER + 0x1f: + icu->ier[reg] =3D val; + break; + case A_SWINTR: + if (val & R_SWINTR_SWINT_MASK) { + qemu_irq_pulse(icu->_swi); + } + break; + case A_FIR: + icu->fir =3D val & (R_FIR_FIEN_MASK | R_FIR_FVCT_MASK); + break; + case A_IPR ... A_IPR + 0x8f: + icu->ipr[reg] =3D val & R_IPR_IPR_MASK; + break; + case A_DMRSR: + case A_DMRSR + 4: + case A_DMRSR + 8: + case A_DMRSR + 12: + icu->dmasr[reg >> 2] =3D val; + qemu_log_mask(LOG_UNIMP, + "rx_icu: DMAC not implemented\n"); + break; + case A_IRQCR ... A_IRQCR + 0x1f: + icu->src[64 + reg].sense =3D val >> R_IRQCR_IRQMD_SHIFT; + break; + case A_NMICLR: + break; + case A_NMIER: + icu->nmier |=3D val & (R_NMIER_NMIEN_MASK | + R_NMIER_LVDEN_MASK | + R_NMIER_OSTEN_MASK); + break; + case A_NMICR: + if ((icu->nmier & R_NMIER_NMIEN_MASK) =3D=3D 0) { + icu->nmicr =3D val & R_NMICR_NMIMD_MASK; + } + break; + default: + qemu_log_mask(LOG_UNIMP, "rx_icu: Register 0x%" HWADDR_PRIX + " not implemented\n", addr); + break; + } +} + +static const MemoryRegionOps icu_ops =3D { + .write =3D icu_write, + .read =3D icu_read, + .endianness =3D DEVICE_LITTLE_ENDIAN, + .impl =3D { + .max_access_size =3D 2, + }, +}; + +static void rxicu_realize(DeviceState *dev, Error **errp) +{ + RXICUState *icu =3D RXICU(dev); + int i, j; + + if (icu->init_sense =3D=3D NULL) { + qemu_log_mask(LOG_GUEST_ERROR, + "rx_icu: trigger-level property must be set."); + return; + } + for (i =3D j =3D 0; i < NR_IRQS; i++) { + if (icu->init_sense[j] =3D=3D i) { + icu->src[i].sense =3D TRG_LEVEL; + if (j < icu->nr_sense) { + j++; + } + } else { + icu->src[i].sense =3D TRG_PEDGE; + } + } + icu->req_irq =3D -1; +} + +static void rxicu_init(Object *obj) +{ + SysBusDevice *d =3D SYS_BUS_DEVICE(obj); + RXICUState *icu =3D RXICU(obj); + + memory_region_init_io(&icu->memory, OBJECT(icu), &icu_ops, + icu, "rx-icu", 0x600); + sysbus_init_mmio(d, &icu->memory); + + qdev_init_gpio_in(DEVICE(d), rxicu_set_irq, NR_IRQS); + qdev_init_gpio_in_named(DEVICE(d), rxicu_ack_irq, "ack", 1); + sysbus_init_irq(d, &icu->_irq); + sysbus_init_irq(d, &icu->_fir); + sysbus_init_irq(d, &icu->_swi); +} + +static void rxicu_fini(Object *obj) +{ + RXICUState *icu =3D RXICU(obj); + g_free(icu->map); + g_free(icu->init_sense); +} + +static const VMStateDescription vmstate_rxicu =3D { + .name =3D "rx-icu", + .version_id =3D 1, + .minimum_version_id =3D 1, + .fields =3D (VMStateField[]) { + VMSTATE_END_OF_LIST() + } +}; + +static Property rxicu_properties[] =3D { + DEFINE_PROP_ARRAY("ipr-map", RXICUState, nr_irqs, map, + qdev_prop_uint32, uint32_t), + DEFINE_PROP_ARRAY("trigger-level", RXICUState, nr_sense, init_sense, + qdev_prop_uint32, uint32_t), + DEFINE_PROP_END_OF_LIST(), +}; + +static void rxicu_class_init(ObjectClass *klass, void *data) +{ + DeviceClass *dc =3D DEVICE_CLASS(klass); + + dc->realize =3D rxicu_realize; + dc->props =3D rxicu_properties; + dc->vmsd =3D &vmstate_rxicu; +} + +static const TypeInfo rxicu_info =3D { + .name =3D TYPE_RXICU, + .parent =3D TYPE_SYS_BUS_DEVICE, + .instance_size =3D sizeof(RXICUState), + .instance_init =3D rxicu_init, + .instance_finalize =3D rxicu_fini, + .class_init =3D rxicu_class_init, +}; + +static void rxicu_register_types(void) +{ + type_register_static(&rxicu_info); +} + +type_init(rxicu_register_types) diff --git a/hw/intc/Kconfig b/hw/intc/Kconfig index 5347f8412c..67e9d97464 100644 --- a/hw/intc/Kconfig +++ b/hw/intc/Kconfig @@ -58,3 +58,6 @@ config S390_FLIC_KVM =20 config OMPIC bool + +config RX_ICU + bool diff --git a/hw/intc/Makefile.objs b/hw/intc/Makefile.objs index f726d87532..f17cbd1a9f 100644 --- a/hw/intc/Makefile.objs +++ b/hw/intc/Makefile.objs @@ -49,3 +49,4 @@ obj-$(CONFIG_ARM_GIC) +=3D arm_gicv3_cpuif.o obj-$(CONFIG_MIPS_CPS) +=3D mips_gic.o obj-$(CONFIG_NIOS2) +=3D nios2_iic.o obj-$(CONFIG_OMPIC) +=3D ompic.o +obj-$(CONFIG_RX) +=3D rx_icu.o --=20 2.20.1