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Iglesias" , qemu-arm@nongnu.org, Peter Maydell , Richard Henderson , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= Subject: [PATCH v2 03/16] hw/intc/xilinx_intc: Make device endianness configurable Date: Thu, 7 Nov 2024 01:22:09 +0000 Message-ID: <20241107012223.94337-4-philmd@linaro.org> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20241107012223.94337-1-philmd@linaro.org> References: <20241107012223.94337-1-philmd@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2a00:1450:4864:20::434; envelope-from=philmd@linaro.org; helo=mail-wr1-x434.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @linaro.org) X-ZM-MESSAGEID: 1730942610554116600 Replace the DEVICE_NATIVE_ENDIAN MemoryRegionOps by a pair of DEVICE_LITTLE_ENDIAN / DEVICE_BIG_ENDIAN. Add the "little-endian" property to select the device endianness, defaulting to little endian. Set the proper endianness for each machine using the device. Signed-off-by: Philippe Mathieu-Daud=C3=A9 --- hw/intc/xilinx_intc.c | 61 +++++++++++++++++++----- hw/microblaze/petalogix_ml605_mmu.c | 1 + hw/microblaze/petalogix_s3adsp1800_mmu.c | 1 + 3 files changed, 50 insertions(+), 13 deletions(-) diff --git a/hw/intc/xilinx_intc.c b/hw/intc/xilinx_intc.c index 8fb6b4f1a5..4fffde961a 100644 --- a/hw/intc/xilinx_intc.c +++ b/hw/intc/xilinx_intc.c @@ -3,6 +3,9 @@ * * Copyright (c) 2009 Edgar E. Iglesias. * + * https://docs.amd.com/v/u/en-US/xps_intc + * DS572: LogiCORE IP XPS Interrupt Controller (v2.01a) + * * Permission is hereby granted, free of charge, to any person obtaining a= copy * of this software and associated documentation files (the "Software"), t= o deal * in the Software without restriction, including without limitation the r= ights @@ -49,6 +52,7 @@ struct XpsIntc { SysBusDevice parent_obj; =20 + bool little_endian_model; MemoryRegion mmio; qemu_irq parent_irq; =20 @@ -140,17 +144,39 @@ static void pic_write(void *opaque, hwaddr addr, update_irq(p); } =20 -static const MemoryRegionOps pic_ops =3D { - .read =3D pic_read, - .write =3D pic_write, - .endianness =3D DEVICE_NATIVE_ENDIAN, - .impl =3D { - .min_access_size =3D 4, - .max_access_size =3D 4, +static const MemoryRegionOps pic_ops[2] =3D { + { + .read =3D pic_read, + .write =3D pic_write, + .endianness =3D DEVICE_BIG_ENDIAN, + .impl =3D { + .min_access_size =3D 4, + .max_access_size =3D 4, + }, + .valid =3D { + /* + * All XPS INTC registers are accessed through the PLB interfa= ce. + * The base address for these registers is provided by the + * configuration parameter, C_BASEADDR. Each register is 32 bi= ts + * although some bits may be unused and is accessed on a 4-byte + * boundary offset from the base address. + */ + .min_access_size =3D 4, + .max_access_size =3D 4, + }, }, - .valid =3D { - .min_access_size =3D 4, - .max_access_size =3D 4 + { + .read =3D pic_read, + .write =3D pic_write, + .endianness =3D DEVICE_LITTLE_ENDIAN, + .impl =3D { + .min_access_size =3D 4, + .max_access_size =3D 4, + }, + .valid =3D { + .min_access_size =3D 4, + .max_access_size =3D 4, + }, } }; =20 @@ -174,13 +200,21 @@ static void xilinx_intc_init(Object *obj) =20 qdev_init_gpio_in(DEVICE(obj), irq_handler, 32); sysbus_init_irq(SYS_BUS_DEVICE(obj), &p->parent_irq); - - memory_region_init_io(&p->mmio, obj, &pic_ops, p, "xlnx.xps-intc", - R_MAX * 4); sysbus_init_mmio(SYS_BUS_DEVICE(obj), &p->mmio); } =20 +static void xilinx_intc_realize(DeviceState *dev, Error **errp) +{ + XpsIntc *p =3D XILINX_INTC(dev); + + memory_region_init_io(&p->mmio, OBJECT(dev), + &pic_ops[p->little_endian_model], + p, "xlnx.xps-intc", + R_MAX * 4); +} + static Property xilinx_intc_properties[] =3D { + DEFINE_PROP_BOOL("little-endian", XpsIntc, little_endian_model, true), DEFINE_PROP_UINT32("kind-of-intr", XpsIntc, c_kind_of_intr, 0), DEFINE_PROP_END_OF_LIST(), }; @@ -189,6 +223,7 @@ static void xilinx_intc_class_init(ObjectClass *klass, = void *data) { DeviceClass *dc =3D DEVICE_CLASS(klass); =20 + dc->realize =3D xilinx_intc_realize; device_class_set_props(dc, xilinx_intc_properties); } =20 diff --git a/hw/microblaze/petalogix_ml605_mmu.c b/hw/microblaze/petalogix_= ml605_mmu.c index d2b2109065..64e8cadbee 100644 --- a/hw/microblaze/petalogix_ml605_mmu.c +++ b/hw/microblaze/petalogix_ml605_mmu.c @@ -111,6 +111,7 @@ petalogix_ml605_init(MachineState *machine) =20 =20 dev =3D qdev_new("xlnx.xps-intc"); + qdev_prop_set_bit(dev, "little-endian", true); qdev_prop_set_uint32(dev, "kind-of-intr", 1 << TIMER_IRQ); sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal); sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, INTC_BASEADDR); diff --git a/hw/microblaze/petalogix_s3adsp1800_mmu.c b/hw/microblaze/petal= ogix_s3adsp1800_mmu.c index 8110be8371..af949196d3 100644 --- a/hw/microblaze/petalogix_s3adsp1800_mmu.c +++ b/hw/microblaze/petalogix_s3adsp1800_mmu.c @@ -95,6 +95,7 @@ petalogix_s3adsp1800_init(MachineState *machine) 64 * KiB, 1, 0x89, 0x18, 0x0000, 0x0, 1); =20 dev =3D qdev_new("xlnx.xps-intc"); + qdev_prop_set_bit(dev, "little-endian", !TARGET_BIG_ENDIAN); qdev_prop_set_uint32(dev, "kind-of-intr", 1 << ETHLITE_IRQ | 1 << UARTLITE_IRQ); sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal); --=20 2.45.2