From patchwork Thu Dec 29 22:12:14 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Herv=C3=A9_Poussineau?= X-Patchwork-Id: 9491517 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 4BC0D62AB8 for ; Thu, 29 Dec 2016 22:23:36 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 3962F20007 for ; Thu, 29 Dec 2016 22:23:36 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 2DDF525D9E; Thu, 29 Dec 2016 22:23:36 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id ADEF920007 for ; Thu, 29 Dec 2016 22:23:34 +0000 (UTC) Received: from localhost ([::1]:37550 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cMj6i-0003HX-QU for patchwork-qemu-devel@patchwork.kernel.org; Thu, 29 Dec 2016 17:23:32 -0500 Received: from eggs.gnu.org ([2001:4830:134:3::10]:52945) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cMixv-00053a-Mr for qemu-devel@nongnu.org; Thu, 29 Dec 2016 17:14:30 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1cMixs-0001cP-My for qemu-devel@nongnu.org; Thu, 29 Dec 2016 17:14:27 -0500 Received: from smtp5-g21.free.fr ([212.27.42.5]:27620) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1cMixs-0001aO-8W; Thu, 29 Dec 2016 17:14:24 -0500 Received: from localhost.localdomain (unknown [78.230.185.200]) by smtp5-g21.free.fr (Postfix) with ESMTP id BC0DD5FF20; Thu, 29 Dec 2016 23:14:20 +0100 (CET) From: =?UTF-8?q?Herv=C3=A9=20Poussineau?= To: qemu-devel@nongnu.org Date: Thu, 29 Dec 2016 23:12:14 +0100 Message-Id: <1483049536-21548-5-git-send-email-hpoussin@reactos.org> X-Mailer: git-send-email 2.1.4 In-Reply-To: <1483049536-21548-1-git-send-email-hpoussin@reactos.org> References: <1483049536-21548-1-git-send-email-hpoussin@reactos.org> MIME-Version: 1.0 X-detected-operating-system: by eggs.gnu.org: Windows NT kernel [generic] [fuzzy] X-Received-From: 212.27.42.5 Subject: [Qemu-devel] [PATCH 4/6] prep: QOM'ify System I/O X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Giancarlo Teodori , Thomas Huth , Alexander Graf , =?UTF-8?q?Herv=C3=A9=20Poussineau?= , qemu-ppc@nongnu.org, David Gibson Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Virus-Scanned: ClamAV using ClamSMTP Part of the functionality is copied from hw/ppc/prep.c. Also add support for board identification/equipment registers. Signed-off-by: Hervé Poussineau --- hw/ppc/Makefile.objs | 1 + hw/ppc/prep_systemio.c | 302 +++++++++++++++++++++++++++++++++++++++++++++++++ hw/ppc/trace-events | 4 + 3 files changed, 307 insertions(+) create mode 100644 hw/ppc/prep_systemio.c diff --git a/hw/ppc/Makefile.objs b/hw/ppc/Makefile.objs index 8025129..db72297 100644 --- a/hw/ppc/Makefile.objs +++ b/hw/ppc/Makefile.objs @@ -16,6 +16,7 @@ obj-y += ppc405_boards.o ppc4xx_devs.o ppc405_uc.o ppc440_bamboo.o obj-y += ppc4xx_pci.o # PReP obj-$(CONFIG_PREP) += prep.o +obj-$(CONFIG_PREP) += prep_systemio.o # OldWorld PowerMac obj-$(CONFIG_MAC) += mac_oldworld.o # NewWorld PowerMac diff --git a/hw/ppc/prep_systemio.c b/hw/ppc/prep_systemio.c new file mode 100644 index 0000000..449056c --- /dev/null +++ b/hw/ppc/prep_systemio.c @@ -0,0 +1,302 @@ +/* + * QEMU PReP System I/O emulation + * + * Copyright (c) 2016 Herve Poussineau + * + * 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/isa/isa.h" +#include "exec/address-spaces.h" +#include "qemu/error-report.h" /* for error_report() */ +#include "sysemu/sysemu.h" /* for vm_stop() */ +#include "cpu.h" +#include "trace.h" + +#define TYPE_PREP_SYSTEMIO "prep-systemio" +#define PREP_SYSTEMIO(obj) \ + OBJECT_CHECK(PrepSystemIoState, (obj), TYPE_PREP_SYSTEMIO) + +/* Bit as defined in PowerPC Reference Plaform v1.1, sect. 6.1.5, p. 132 */ +#define PREP_BIT(n) (1 << (7 - (n))) + +typedef struct PrepSystemIoState { + ISADevice parent_obj; + MemoryRegion ppc_parity_mem; + + qemu_irq non_contiguous_io_map_irq; + uint8_t sreset; /* 0x0092 */ + uint8_t equipment; /* 0x080c */ + uint8_t system_control; /* 0x081c */ + uint8_t iomap_type; /* 0x0850 */ + uint8_t ibm_planar_id; /* 0x0852 */ + qemu_irq softreset_irq; + PortioList portio; +} PrepSystemIoState; + +/* PORT 0092 -- Special Port 92 (Read/Write) */ + +enum { + PORT0092_SOFTRESET = PREP_BIT(7), + PORT0092_LE_MODE = PREP_BIT(6), +}; + +static void prep_port0092_write(void *opaque, uint32_t addr, uint32_t val) +{ + PrepSystemIoState *s = opaque; + + trace_prep_systemio_write(addr, val); + + if ((val & PORT0092_SOFTRESET) != 0) { + qemu_irq_raise(s->softreset_irq); + s->sreset = 1; + } else { + qemu_irq_lower(s->softreset_irq); + s->sreset = 0; + } + + if ((val & PORT0092_LE_MODE) != 0) { + /* XXX Not supported yet */ + error_report("little-endian mode not supported"); + vm_stop(RUN_STATE_PAUSED); + } else { + /* Nothing to do */ + } +} + +static uint32_t prep_port0092_read(void *opaque, uint32_t addr) +{ + PrepSystemIoState *s = opaque; + /* XXX LE mode unsupported */ + trace_prep_systemio_read(addr, 0); + return s->sreset; +} + +/* PORT 0808 -- Hardfile Light Register (Write Only) */ + +enum { + PORT0808_HARDFILE_LIGHT_ON = PREP_BIT(7), +}; + +static void prep_port0808_write(void *opaque, uint32_t addr, uint32_t val) +{ + trace_prep_systemio_write(addr, val); +} + +/* PORT 0810 -- Password Protect 1 Register (Write Only) */ + +/* reset by port 0x4D in the SIO */ +static void prep_port0810_write(void *opaque, uint32_t addr, uint32_t val) +{ + trace_prep_systemio_write(addr, val); +} + +/* PORT 0812 -- Password Protect 2 Register (Write Only) */ + +/* reset by port 0x4D in the SIO */ +static void prep_port0812_write(void *opaque, uint32_t addr, uint32_t val) +{ + trace_prep_systemio_write(addr, val); +} + +/* PORT 0814 -- L2 Invalidate Register (Write Only) */ + +static void prep_port0814_write(void *opaque, uint32_t addr, uint32_t val) +{ + trace_prep_systemio_write(addr, val); +} + +/* PORT 0818 -- Reserved for Keylock (Read Only) */ + +enum { + PORT0818_KEYLOCK_SIGNAL_HIGH = PREP_BIT(7), +}; + +static uint32_t prep_port0818_read(void *opaque, uint32_t addr) +{ + uint32_t val = 0; + trace_prep_systemio_read(addr, val); + return val; +} + +/* PORT 080C -- Equipment */ + +enum { + PORT080C_SCSIFUSE = PREP_BIT(1), + PORT080C_L2_COPYBACK = PREP_BIT(4), + PORT080C_L2_256 = PREP_BIT(5), + PORT080C_UPGRADE_CPU = PREP_BIT(6), + PORT080C_L2 = PREP_BIT(7), +}; + +static uint32_t prep_port080c_read(void *opaque, uint32_t addr) +{ + PrepSystemIoState *s = opaque; + trace_prep_systemio_read(addr, s->equipment); + return s->equipment; +} + +/* PORT 081C -- System Control Register (Read/Write) */ + +enum { + PORT081C_FLOPPY_MOTOR_INHIBIT = PREP_BIT(3), + PORT081C_MASK_TEA = PREP_BIT(2), + PORT081C_L2_UPDATE_INHIBIT = PREP_BIT(1), + PORT081C_L2_CACHEMISS_INHIBIT = PREP_BIT(0), +}; + +static void prep_port081c_write(void *opaque, uint32_t addr, uint32_t val) +{ + PrepSystemIoState *s = opaque; + trace_prep_systemio_write(addr, val); + s->system_control = val; +} + +static uint32_t prep_port081c_read(void *opaque, uint32_t addr) +{ + PrepSystemIoState *s = opaque; + trace_prep_systemio_read(addr, s->system_control); + return s->system_control; +} + +/* System Board Identification */ + +static uint32_t prep_port0852_read(void *opaque, uint32_t addr) +{ + PrepSystemIoState *s = opaque; + trace_prep_systemio_read(addr, s->ibm_planar_id); + return s->ibm_planar_id; +} + +/* PORT 0850 -- I/O Map Type Register (Read/Write) */ + +enum { + PORT0850_IOMAP_NONCONTIGUOUS = PREP_BIT(7), +}; + +static uint32_t prep_port0850_read(void *opaque, uint32_t addr) +{ + PrepSystemIoState *s = opaque; + trace_prep_systemio_read(addr, s->iomap_type); + return s->iomap_type; +} + +static void prep_port0850_write(void *opaque, uint32_t addr, uint32_t val) +{ + PrepSystemIoState *s = opaque; + + trace_prep_systemio_write(addr, val); + qemu_set_irq(s->non_contiguous_io_map_irq, + val & PORT0850_IOMAP_NONCONTIGUOUS ? 1 : 0); + s->iomap_type = val; +} + +static const MemoryRegionPortio ppc_io800_port_list[] = { + { 0x092, 1, 1, .read = prep_port0092_read, + .write = prep_port0092_write, }, + { 0x808, 1, 1, .write = prep_port0808_write, }, + { 0x80c, 1, 1, .read = prep_port080c_read, }, + { 0x810, 1, 1, .write = prep_port0810_write, }, + { 0x812, 1, 1, .write = prep_port0812_write, }, + { 0x814, 1, 1, .write = prep_port0814_write, }, + { 0x818, 1, 1, .read = prep_port0818_read }, + { 0x81c, 1, 1, .read = prep_port081c_read, + .write = prep_port081c_write, }, + { 0x850, 1, 1, .read = prep_port0850_read, + .write = prep_port0850_write, }, + { 0x852, 1, 1, .read = prep_port0852_read, }, + PORTIO_END_OF_LIST() +}; + +static uint64_t ppc_parity_error_readl(void *opaque, hwaddr addr, + unsigned int size) +{ + uint32_t val = 0; + trace_prep_systemio_read((unsigned int)addr, val); + return val; +} + +static const MemoryRegionOps ppc_parity_error_ops = { + .read = ppc_parity_error_readl, + .valid = { + .min_access_size = 4, + .max_access_size = 4, + }, +}; + +static void prep_systemio_realize(DeviceState *dev, Error **errp) +{ + ISADevice *isa = ISA_DEVICE(dev); + PrepSystemIoState *s = PREP_SYSTEMIO(dev); + PowerPCCPU *cpu; + + qdev_init_gpio_out(dev, &s->non_contiguous_io_map_irq, 1); + s->iomap_type = 0; /* contiguous mode XXX 0x1? */ + cpu = POWERPC_CPU(first_cpu); + s->softreset_irq = cpu->env.irq_inputs[PPC6xx_INPUT_HRESET]; + + isa_register_portio_list(isa, &s->portio, 0x0, ppc_io800_port_list, s, + "systemio800"); + + memory_region_init_io(&s->ppc_parity_mem, OBJECT(dev), + &ppc_parity_error_ops, s, "ppc-parity", 0x4); + memory_region_add_subregion(get_system_memory(), 0xbfffeff0, + &s->ppc_parity_mem); +} + +static const VMStateDescription vmstate_prep_systemio = { + .name = "prep_systemio", + .version_id = 1, + .minimum_version_id = 1, + .fields = (VMStateField[]) { + VMSTATE_UINT8(system_control, PrepSystemIoState), + VMSTATE_UINT8(iomap_type, PrepSystemIoState), + VMSTATE_END_OF_LIST() + }, +}; + +static Property prep_systemio_properties[] = { + DEFINE_PROP_UINT8("ibm-planar-id", PrepSystemIoState, ibm_planar_id, 0), + DEFINE_PROP_UINT8("equipment", PrepSystemIoState, equipment, 0), + DEFINE_PROP_END_OF_LIST() +}; + +static void prep_systemio_class_initfn(ObjectClass *klass, void *data) +{ + DeviceClass *dc = DEVICE_CLASS(klass); + + dc->realize = prep_systemio_realize; + dc->vmsd = &vmstate_prep_systemio; + dc->props = prep_systemio_properties; +} + +static TypeInfo prep_systemio800_info = { + .name = TYPE_PREP_SYSTEMIO, + .parent = TYPE_ISA_DEVICE, + .instance_size = sizeof(PrepSystemIoState), + .class_init = prep_systemio_class_initfn, +}; + +static void prep_systemio_register_types(void) +{ + type_register_static(&prep_systemio800_info); +} + +type_init(prep_systemio_register_types) diff --git a/hw/ppc/trace-events b/hw/ppc/trace-events index 2297ead..2ba6166 100644 --- a/hw/ppc/trace-events +++ b/hw/ppc/trace-events @@ -74,3 +74,7 @@ ppc_tb_adjust(uint64_t offs1, uint64_t offs2, int64_t diff, int64_t seconds) "ad # hw/ppc/prep.c prep_io_800_writeb(uint32_t addr, uint32_t val) "0x%08" PRIx32 " => 0x%02" PRIx32 prep_io_800_readb(uint32_t addr, uint32_t retval) "0x%08" PRIx32 " <= 0x%02" PRIx32 + +# hw/ppc/prep_systemio.c +prep_systemio_read(uint32_t addr, uint32_t val) "read addr=%x val=%x" +prep_systemio_write(uint32_t addr, uint32_t val) "write addr=%x val=%x"