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Fri, 25 Feb 2022 17:59:30 -0800 (PST) From: Stafford Horne To: QEMU Development Subject: [PULL v2 1/6] hw/openrisc/openrisc_sim: Create machine state for or1ksim Date: Sat, 26 Feb 2022 10:59:19 +0900 Message-Id: <20220226015924.1293022-2-shorne@gmail.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20220226015924.1293022-1-shorne@gmail.com> References: <20220226015924.1293022-1-shorne@gmail.com> MIME-Version: 1.0 X-Host-Lookup-Failed: Reverse DNS lookup failed for 2607:f8b0:4864:20::434 (failed) Received-SPF: pass client-ip=2607:f8b0:4864:20::434; envelope-from=shorne@gmail.com; helo=mail-pf1-x434.google.com X-Spam_score_int: -6 X-Spam_score: -0.7 X-Spam_bar: / X-Spam_report: (-0.7 / 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, FREEMAIL_FROM=0.001, PDS_HP_HELO_NORDNS=0.659, RCVD_IN_DNSWL_NONE=-0.0001, RDNS_NONE=0.793, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=no 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: , Cc: Stafford Horne , =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" This will allow us to attach machine state attributes like the device tree fdt. Signed-off-by: Stafford Horne Reviewed-by: Philippe Mathieu-Daudé --- hw/openrisc/openrisc_sim.c | 30 ++++++++++++++++++++++++++++-- 1 file changed, 28 insertions(+), 2 deletions(-) diff --git a/hw/openrisc/openrisc_sim.c b/hw/openrisc/openrisc_sim.c index 73fe383c2d..26d2370e60 100644 --- a/hw/openrisc/openrisc_sim.c +++ b/hw/openrisc/openrisc_sim.c @@ -37,6 +37,18 @@ #define KERNEL_LOAD_ADDR 0x100 +#define TYPE_OR1KSIM_MACHINE MACHINE_TYPE_NAME("or1k-sim") +#define OR1KSIM_MACHINE(obj) \ + OBJECT_CHECK(Or1ksimState, (obj), TYPE_OR1KSIM_MACHINE) + +typedef struct Or1ksimState { + /*< private >*/ + MachineState parent_obj; + + /*< public >*/ + +} Or1ksimState; + static struct openrisc_boot_info { uint32_t bootstrap_pc; } boot_info; @@ -183,8 +195,10 @@ static void openrisc_sim_init(MachineState *machine) openrisc_load_kernel(ram_size, kernel_filename); } -static void openrisc_sim_machine_init(MachineClass *mc) +static void openrisc_sim_machine_init(ObjectClass *oc, void *data) { + MachineClass *mc = MACHINE_CLASS(oc); + mc->desc = "or1k simulation"; mc->init = openrisc_sim_init; mc->max_cpus = 2; @@ -192,4 +206,16 @@ static void openrisc_sim_machine_init(MachineClass *mc) mc->default_cpu_type = OPENRISC_CPU_TYPE_NAME("or1200"); } -DEFINE_MACHINE("or1k-sim", openrisc_sim_machine_init) +static const TypeInfo or1ksim_machine_typeinfo = { + .name = TYPE_OR1KSIM_MACHINE, + .parent = TYPE_MACHINE, + .class_init = openrisc_sim_machine_init, + .instance_size = sizeof(Or1ksimState), +}; + +static void or1ksim_machine_init_register_types(void) +{ + type_register_static(&or1ksim_machine_typeinfo); +} + +type_init(or1ksim_machine_init_register_types) From patchwork Sat Feb 26 01:59:20 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Stafford Horne X-Patchwork-Id: 1598050 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: bilbo.ozlabs.org; dkim=pass (2048-bit key; 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Fri, 25 Feb 2022 17:59:32 -0800 (PST) From: Stafford Horne To: QEMU Development Subject: [PULL v2 2/6] hw/openrisc/openrisc_sim: Parameterize initialization Date: Sat, 26 Feb 2022 10:59:20 +0900 Message-Id: <20220226015924.1293022-3-shorne@gmail.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20220226015924.1293022-1-shorne@gmail.com> References: <20220226015924.1293022-1-shorne@gmail.com> MIME-Version: 1.0 X-Host-Lookup-Failed: Reverse DNS lookup failed for 2607:f8b0:4864:20::634 (failed) Received-SPF: pass client-ip=2607:f8b0:4864:20::634; envelope-from=shorne@gmail.com; helo=mail-pl1-x634.google.com X-Spam_score_int: -6 X-Spam_score: -0.7 X-Spam_bar: / X-Spam_report: (-0.7 / 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, FREEMAIL_FROM=0.001, PDS_HP_HELO_NORDNS=0.659, RCVD_IN_DNSWL_NONE=-0.0001, RDNS_NONE=0.793, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=no 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: , Cc: Stafford Horne , =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" Move magic numbers to variables and enums. These will be reused for upcoming fdt initialization. Signed-off-by: Stafford Horne Reviewed-by: Philippe Mathieu-Daudé --- hw/openrisc/openrisc_sim.c | 42 ++++++++++++++++++++++++++++++-------- 1 file changed, 34 insertions(+), 8 deletions(-) diff --git a/hw/openrisc/openrisc_sim.c b/hw/openrisc/openrisc_sim.c index 26d2370e60..d12b3e0c5e 100644 --- a/hw/openrisc/openrisc_sim.c +++ b/hw/openrisc/openrisc_sim.c @@ -49,6 +49,29 @@ typedef struct Or1ksimState { } Or1ksimState; +enum { + OR1KSIM_DRAM, + OR1KSIM_UART, + OR1KSIM_ETHOC, + OR1KSIM_OMPIC, +}; + +enum { + OR1KSIM_OMPIC_IRQ = 1, + OR1KSIM_UART_IRQ = 2, + OR1KSIM_ETHOC_IRQ = 4, +}; + +static const struct MemmapEntry { + hwaddr base; + hwaddr size; +} or1ksim_memmap[] = { + [OR1KSIM_DRAM] = { 0x00000000, 0 }, + [OR1KSIM_UART] = { 0x90000000, 0x100 }, + [OR1KSIM_ETHOC] = { 0x92000000, 0x800 }, + [OR1KSIM_OMPIC] = { 0x98000000, 16 }, +}; + static struct openrisc_boot_info { uint32_t bootstrap_pc; } boot_info; @@ -176,21 +199,24 @@ static void openrisc_sim_init(MachineState *machine) memory_region_add_subregion(get_system_memory(), 0, ram); if (nd_table[0].used) { - openrisc_sim_net_init(0x92000000, 0x92000400, smp_cpus, - cpus, 4, nd_table); + openrisc_sim_net_init(or1ksim_memmap[OR1KSIM_ETHOC].base, + or1ksim_memmap[OR1KSIM_ETHOC].base + 0x400, + smp_cpus, cpus, + OR1KSIM_ETHOC_IRQ, nd_table); } if (smp_cpus > 1) { - openrisc_sim_ompic_init(0x98000000, smp_cpus, cpus, 1); + openrisc_sim_ompic_init(or1ksim_memmap[OR1KSIM_OMPIC].base, smp_cpus, + cpus, OR1KSIM_OMPIC_IRQ); - serial_irq = qemu_irq_split(get_cpu_irq(cpus, 0, 2), - get_cpu_irq(cpus, 1, 2)); + serial_irq = qemu_irq_split(get_cpu_irq(cpus, 0, OR1KSIM_UART_IRQ), + get_cpu_irq(cpus, 1, OR1KSIM_UART_IRQ)); } else { - serial_irq = get_cpu_irq(cpus, 0, 2); + serial_irq = get_cpu_irq(cpus, 0, OR1KSIM_UART_IRQ); } - serial_mm_init(get_system_memory(), 0x90000000, 0, serial_irq, - 115200, serial_hd(0), DEVICE_NATIVE_ENDIAN); + serial_mm_init(get_system_memory(), or1ksim_memmap[OR1KSIM_UART].base, 0, + serial_irq, 115200, serial_hd(0), DEVICE_NATIVE_ENDIAN); openrisc_load_kernel(ram_size, kernel_filename); } From patchwork Sat Feb 26 01:59:21 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Stafford Horne X-Patchwork-Id: 1598051 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: bilbo.ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256 header.s=20210112 header.b=icbE9ETA; dkim-atps=neutral Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) 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 bilbo.ozlabs.org (Postfix) with ESMTPS id 4K591z59mSz9sG5 for ; Sat, 26 Feb 2022 13:04:39 +1100 (AEDT) Received: from localhost ([::1]:45958 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1nNmRp-0007AC-If for incoming@patchwork.ozlabs.org; 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Fri, 25 Feb 2022 17:59:35 -0800 (PST) From: Stafford Horne To: QEMU Development Subject: [PULL v2 3/6] hw/openrisc/openrisc_sim: Use IRQ splitter when connecting UART Date: Sat, 26 Feb 2022 10:59:21 +0900 Message-Id: <20220226015924.1293022-4-shorne@gmail.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20220226015924.1293022-1-shorne@gmail.com> References: <20220226015924.1293022-1-shorne@gmail.com> MIME-Version: 1.0 X-Host-Lookup-Failed: Reverse DNS lookup failed for 2607:f8b0:4864:20::52f (failed) Received-SPF: pass client-ip=2607:f8b0:4864:20::52f; envelope-from=shorne@gmail.com; helo=mail-pg1-x52f.google.com X-Spam_score_int: -6 X-Spam_score: -0.7 X-Spam_bar: / X-Spam_report: (-0.7 / 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, FREEMAIL_FROM=0.001, PDS_HP_HELO_NORDNS=0.659, RCVD_IN_DNSWL_NONE=-0.0001, RDNS_NONE=0.793, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=no 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: , Cc: Peter Maydell , Stafford Horne , =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" Currently the OpenRISC SMP configuration only supports 2 cores due to the UART IRQ routing being limited to 2 cores. As was done in commit 1eeffbeb11 ("hw/openrisc/openrisc_sim: Use IRQ splitter when connecting IRQ to multiple CPUs") we can use a splitter to wire more than 2 CPUs. This patch moves serial initialization out to it's own function and uses a splitter to connect multiple CPU irq lines to the UART. Signed-off-by: Stafford Horne Reviewed-by: Peter Maydell Reviewed-by: Philippe Mathieu-Daudé --- hw/openrisc/openrisc_sim.c | 32 ++++++++++++++++++++++++-------- 1 file changed, 24 insertions(+), 8 deletions(-) diff --git a/hw/openrisc/openrisc_sim.c b/hw/openrisc/openrisc_sim.c index d12b3e0c5e..5bfbac00f8 100644 --- a/hw/openrisc/openrisc_sim.c +++ b/hw/openrisc/openrisc_sim.c @@ -137,6 +137,28 @@ static void openrisc_sim_ompic_init(hwaddr base, int num_cpus, sysbus_mmio_map(s, 0, base); } +static void openrisc_sim_serial_init(hwaddr base, int num_cpus, + OpenRISCCPU *cpus[], int irq_pin) +{ + qemu_irq serial_irq; + int i; + + if (num_cpus > 1) { + DeviceState *splitter = qdev_new(TYPE_SPLIT_IRQ); + qdev_prop_set_uint32(splitter, "num-lines", num_cpus); + qdev_realize_and_unref(splitter, NULL, &error_fatal); + for (i = 0; i < num_cpus; i++) { + qdev_connect_gpio_out(splitter, i, get_cpu_irq(cpus, i, irq_pin)); + } + serial_irq = qdev_get_gpio_in(splitter, 0); + } else { + serial_irq = get_cpu_irq(cpus, 0, irq_pin); + } + serial_mm_init(get_system_memory(), base, 0, serial_irq, 115200, + serial_hd(0), DEVICE_NATIVE_ENDIAN); +} + + static void openrisc_load_kernel(ram_addr_t ram_size, const char *kernel_filename) { @@ -177,7 +199,6 @@ static void openrisc_sim_init(MachineState *machine) const char *kernel_filename = machine->kernel_filename; OpenRISCCPU *cpus[2] = {}; MemoryRegion *ram; - qemu_irq serial_irq; int n; unsigned int smp_cpus = machine->smp.cpus; @@ -208,15 +229,10 @@ static void openrisc_sim_init(MachineState *machine) if (smp_cpus > 1) { openrisc_sim_ompic_init(or1ksim_memmap[OR1KSIM_OMPIC].base, smp_cpus, cpus, OR1KSIM_OMPIC_IRQ); - - serial_irq = qemu_irq_split(get_cpu_irq(cpus, 0, OR1KSIM_UART_IRQ), - get_cpu_irq(cpus, 1, OR1KSIM_UART_IRQ)); - } else { - serial_irq = get_cpu_irq(cpus, 0, OR1KSIM_UART_IRQ); } - serial_mm_init(get_system_memory(), or1ksim_memmap[OR1KSIM_UART].base, 0, - serial_irq, 115200, serial_hd(0), DEVICE_NATIVE_ENDIAN); + openrisc_sim_serial_init(or1ksim_memmap[OR1KSIM_UART].base, smp_cpus, cpus, + OR1KSIM_UART_IRQ); openrisc_load_kernel(ram_size, kernel_filename); } From patchwork Sat Feb 26 01:59:22 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Stafford Horne X-Patchwork-Id: 1598049 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: bilbo.ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256 header.s=20210112 header.b=GUgLCTrV; dkim-atps=neutral Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) 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 bilbo.ozlabs.org (Postfix) with ESMTPS id 4K58zN1p1Rz9sG5 for ; 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Fri, 25 Feb 2022 17:59:38 -0800 (PST) Received: from localhost ([2409:10:24a0:4700:e8ad:216a:2a9d:6d0c]) by smtp.gmail.com with ESMTPSA id f15-20020a056a001acf00b004f0ed8dc8d7sm4465564pfv.108.2022.02.25.17.59.37 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 25 Feb 2022 17:59:38 -0800 (PST) From: Stafford Horne To: QEMU Development Subject: [PULL v2 4/6] hw/openrisc/openrisc_sim: Increase max_cpus to 4 Date: Sat, 26 Feb 2022 10:59:22 +0900 Message-Id: <20220226015924.1293022-5-shorne@gmail.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20220226015924.1293022-1-shorne@gmail.com> References: <20220226015924.1293022-1-shorne@gmail.com> MIME-Version: 1.0 X-Host-Lookup-Failed: Reverse DNS lookup failed for 2607:f8b0:4864:20::42f (failed) Received-SPF: pass client-ip=2607:f8b0:4864:20::42f; envelope-from=shorne@gmail.com; helo=mail-pf1-x42f.google.com X-Spam_score_int: -6 X-Spam_score: -0.7 X-Spam_bar: / X-Spam_report: (-0.7 / 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, FREEMAIL_FROM=0.001, PDS_HP_HELO_NORDNS=0.659, RCVD_IN_DNSWL_NONE=-0.0001, RDNS_NONE=0.793, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=no 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: , Cc: Peter Maydell , Stafford Horne , =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" Now that we no longer have a limit of 2 CPUs due to fixing the IRQ routing issues we can increase the max. Here we increase the limit to 4, we could go higher, but currently OMPIC has a limit of 4, so we align with that. Signed-off-by: Stafford Horne Reviewed-by: Peter Maydell Reviewed-by: Philippe Mathieu-Daudé --- hw/openrisc/openrisc_sim.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/hw/openrisc/openrisc_sim.c b/hw/openrisc/openrisc_sim.c index 5bfbac00f8..8cfb92bec6 100644 --- a/hw/openrisc/openrisc_sim.c +++ b/hw/openrisc/openrisc_sim.c @@ -37,6 +37,8 @@ #define KERNEL_LOAD_ADDR 0x100 +#define OR1KSIM_CPUS_MAX 4 + #define TYPE_OR1KSIM_MACHINE MACHINE_TYPE_NAME("or1k-sim") #define OR1KSIM_MACHINE(obj) \ OBJECT_CHECK(Or1ksimState, (obj), TYPE_OR1KSIM_MACHINE) @@ -197,12 +199,12 @@ static void openrisc_sim_init(MachineState *machine) { ram_addr_t ram_size = machine->ram_size; const char *kernel_filename = machine->kernel_filename; - OpenRISCCPU *cpus[2] = {}; + OpenRISCCPU *cpus[OR1KSIM_CPUS_MAX] = {}; MemoryRegion *ram; int n; unsigned int smp_cpus = machine->smp.cpus; - assert(smp_cpus >= 1 && smp_cpus <= 2); + assert(smp_cpus >= 1 && smp_cpus <= OR1KSIM_CPUS_MAX); for (n = 0; n < smp_cpus; n++) { cpus[n] = OPENRISC_CPU(cpu_create(machine->cpu_type)); if (cpus[n] == NULL) { @@ -243,7 +245,7 @@ static void openrisc_sim_machine_init(ObjectClass *oc, void *data) mc->desc = "or1k simulation"; mc->init = openrisc_sim_init; - mc->max_cpus = 2; + mc->max_cpus = OR1KSIM_CPUS_MAX; mc->is_default = true; mc->default_cpu_type = OPENRISC_CPU_TYPE_NAME("or1200"); } From patchwork Sat Feb 26 01:59:23 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stafford Horne X-Patchwork-Id: 1598052 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: bilbo.ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256 header.s=20210112 header.b=IA2vR5ch; dkim-atps=neutral Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; 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Fri, 25 Feb 2022 17:59:41 -0800 (PST) Received: from localhost ([2409:10:24a0:4700:e8ad:216a:2a9d:6d0c]) by smtp.gmail.com with ESMTPSA id g21-20020a17090a7d1500b001b968e82819sm10092258pjl.10.2022.02.25.17.59.40 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 25 Feb 2022 17:59:40 -0800 (PST) From: Stafford Horne To: QEMU Development Subject: [PULL v2 5/6] hw/openrisc/openrisc_sim: Add automatic device tree generation Date: Sat, 26 Feb 2022 10:59:23 +0900 Message-Id: <20220226015924.1293022-6-shorne@gmail.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20220226015924.1293022-1-shorne@gmail.com> References: <20220226015924.1293022-1-shorne@gmail.com> MIME-Version: 1.0 X-Host-Lookup-Failed: Reverse DNS lookup failed for 2607:f8b0:4864:20::42b (failed) Received-SPF: pass client-ip=2607:f8b0:4864:20::42b; envelope-from=shorne@gmail.com; helo=mail-pf1-x42b.google.com X-Spam_score_int: -6 X-Spam_score: -0.7 X-Spam_bar: / X-Spam_report: (-0.7 / 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, FREEMAIL_FROM=0.001, PDS_HP_HELO_NORDNS=0.659, RCVD_IN_DNSWL_NONE=-0.0001, RDNS_NONE=0.793, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=no 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: , Cc: Peter Maydell , Stafford Horne Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" Using the device tree means that qemu can now directly tell the kernel what hardware is configured rather than use having to maintain and update a separate device tree file. This patch adds automatic device tree generation support for the OpenRISC simulator. A device tree is built up based on the state of the configure openrisc simulator. This is then dumped to memory and the load address is passed to the kernel in register r3. Signed-off-by: Stafford Horne Reviewed-by: Peter Maydell --- Since v1: - Added fdt to CONFIG_OR1K_SIM source set configs/targets/or1k-softmmu.mak | 1 + hw/openrisc/meson.build | 2 +- hw/openrisc/openrisc_sim.c | 189 ++++++++++++++++++++++++++++--- 3 files changed, 176 insertions(+), 16 deletions(-) diff --git a/configs/targets/or1k-softmmu.mak b/configs/targets/or1k-softmmu.mak index 1dfb93e46d..9e1d4a1fb1 100644 --- a/configs/targets/or1k-softmmu.mak +++ b/configs/targets/or1k-softmmu.mak @@ -1,2 +1,3 @@ TARGET_ARCH=openrisc TARGET_WORDS_BIGENDIAN=y +TARGET_NEED_FDT=y diff --git a/hw/openrisc/meson.build b/hw/openrisc/meson.build index 947f63ee08..ec48172c9d 100644 --- a/hw/openrisc/meson.build +++ b/hw/openrisc/meson.build @@ -1,5 +1,5 @@ openrisc_ss = ss.source_set() openrisc_ss.add(files('cputimer.c')) -openrisc_ss.add(when: 'CONFIG_OR1K_SIM', if_true: files('openrisc_sim.c')) +openrisc_ss.add(when: 'CONFIG_OR1K_SIM', if_true: [files('openrisc_sim.c'), fdt]) hw_arch += {'openrisc': openrisc_ss} diff --git a/hw/openrisc/openrisc_sim.c b/hw/openrisc/openrisc_sim.c index 8cfb92bec6..e0e71c0faa 100644 --- a/hw/openrisc/openrisc_sim.c +++ b/hw/openrisc/openrisc_sim.c @@ -29,15 +29,20 @@ #include "net/net.h" #include "hw/loader.h" #include "hw/qdev-properties.h" +#include "exec/address-spaces.h" +#include "sysemu/device_tree.h" #include "sysemu/sysemu.h" #include "hw/sysbus.h" #include "sysemu/qtest.h" #include "sysemu/reset.h" #include "hw/core/split-irq.h" +#include + #define KERNEL_LOAD_ADDR 0x100 #define OR1KSIM_CPUS_MAX 4 +#define OR1KSIM_CLK_MHZ 20000000 #define TYPE_OR1KSIM_MACHINE MACHINE_TYPE_NAME("or1k-sim") #define OR1KSIM_MACHINE(obj) \ @@ -48,6 +53,8 @@ typedef struct Or1ksimState { MachineState parent_obj; /*< public >*/ + void *fdt; + int fdt_size; } Or1ksimState; @@ -76,6 +83,7 @@ static const struct MemmapEntry { static struct openrisc_boot_info { uint32_t bootstrap_pc; + uint32_t fdt_addr; } boot_info; static void main_cpu_reset(void *opaque) @@ -86,6 +94,7 @@ static void main_cpu_reset(void *opaque) cpu_reset(CPU(cpu)); cpu_set_pc(cs, boot_info.bootstrap_pc); + cpu_set_gpr(&cpu->env, 3, boot_info.fdt_addr); } static qemu_irq get_cpu_irq(OpenRISCCPU *cpus[], int cpunum, int irq_pin) @@ -93,12 +102,77 @@ static qemu_irq get_cpu_irq(OpenRISCCPU *cpus[], int cpunum, int irq_pin) return qdev_get_gpio_in_named(DEVICE(cpus[cpunum]), "IRQ", irq_pin); } -static void openrisc_sim_net_init(hwaddr base, hwaddr descriptors, +static void openrisc_create_fdt(Or1ksimState *state, + const struct MemmapEntry *memmap, + int num_cpus, uint64_t mem_size, + const char *cmdline) +{ + void *fdt; + int cpu; + char *nodename; + int pic_ph; + + fdt = state->fdt = create_device_tree(&state->fdt_size); + if (!fdt) { + error_report("create_device_tree() failed"); + exit(1); + } + + qemu_fdt_setprop_string(fdt, "/", "compatible", "opencores,or1ksim"); + qemu_fdt_setprop_cell(fdt, "/", "#address-cells", 0x1); + qemu_fdt_setprop_cell(fdt, "/", "#size-cells", 0x1); + + nodename = g_strdup_printf("/memory@%" HWADDR_PRIx, + memmap[OR1KSIM_DRAM].base); + qemu_fdt_add_subnode(fdt, nodename); + qemu_fdt_setprop_cells(fdt, nodename, "reg", + memmap[OR1KSIM_DRAM].base, mem_size); + qemu_fdt_setprop_string(fdt, nodename, "device_type", "memory"); + g_free(nodename); + + qemu_fdt_add_subnode(fdt, "/cpus"); + qemu_fdt_setprop_cell(fdt, "/cpus", "#size-cells", 0x0); + qemu_fdt_setprop_cell(fdt, "/cpus", "#address-cells", 0x1); + + for (cpu = 0; cpu < num_cpus; cpu++) { + nodename = g_strdup_printf("/cpus/cpu@%d", cpu); + qemu_fdt_add_subnode(fdt, nodename); + qemu_fdt_setprop_string(fdt, nodename, "compatible", + "opencores,or1200-rtlsvn481"); + qemu_fdt_setprop_cell(fdt, nodename, "reg", cpu); + qemu_fdt_setprop_cell(fdt, nodename, "clock-frequency", + OR1KSIM_CLK_MHZ); + g_free(nodename); + } + + nodename = (char *)"/pic"; + qemu_fdt_add_subnode(fdt, nodename); + pic_ph = qemu_fdt_alloc_phandle(fdt); + qemu_fdt_setprop_string(fdt, nodename, "compatible", + "opencores,or1k-pic-level"); + qemu_fdt_setprop_cell(fdt, nodename, "#interrupt-cells", 1); + qemu_fdt_setprop(fdt, nodename, "interrupt-controller", NULL, 0); + qemu_fdt_setprop_cell(fdt, nodename, "phandle", pic_ph); + + qemu_fdt_setprop_cell(fdt, "/", "interrupt-parent", pic_ph); + + qemu_fdt_add_subnode(fdt, "/chosen"); + if (cmdline) { + qemu_fdt_setprop_string(fdt, "/chosen", "bootargs", cmdline); + } + + /* Create aliases node for use by devices. */ + qemu_fdt_add_subnode(fdt, "/aliases"); +} + +static void openrisc_sim_net_init(Or1ksimState *state, hwaddr base, hwaddr size, int num_cpus, OpenRISCCPU *cpus[], int irq_pin, NICInfo *nd) { + void *fdt = state->fdt; DeviceState *dev; SysBusDevice *s; + char *nodename; int i; dev = qdev_new("open_eth"); @@ -118,14 +192,28 @@ static void openrisc_sim_net_init(hwaddr base, hwaddr descriptors, sysbus_connect_irq(s, 0, get_cpu_irq(cpus, 0, irq_pin)); } sysbus_mmio_map(s, 0, base); - sysbus_mmio_map(s, 1, descriptors); + sysbus_mmio_map(s, 1, base + 0x400); + + /* Init device tree node for ethoc. */ + nodename = g_strdup_printf("/ethoc@%" HWADDR_PRIx, base); + qemu_fdt_add_subnode(fdt, nodename); + qemu_fdt_setprop_string(fdt, nodename, "compatible", "opencores,ethoc"); + qemu_fdt_setprop_cells(fdt, nodename, "reg", base, size); + qemu_fdt_setprop_cell(fdt, nodename, "interrupts", irq_pin); + qemu_fdt_setprop(fdt, nodename, "big-endian", NULL, 0); + + qemu_fdt_setprop_string(fdt, "/aliases", "enet0", nodename); + g_free(nodename); } -static void openrisc_sim_ompic_init(hwaddr base, int num_cpus, +static void openrisc_sim_ompic_init(Or1ksimState *state, hwaddr base, + hwaddr size, int num_cpus, OpenRISCCPU *cpus[], int irq_pin) { + void *fdt = state->fdt; DeviceState *dev; SysBusDevice *s; + char *nodename; int i; dev = qdev_new("or1k-ompic"); @@ -137,11 +225,24 @@ static void openrisc_sim_ompic_init(hwaddr base, int num_cpus, sysbus_connect_irq(s, i, get_cpu_irq(cpus, i, irq_pin)); } sysbus_mmio_map(s, 0, base); + + /* Add device tree node for ompic. */ + nodename = g_strdup_printf("/ompic@%" HWADDR_PRIx, base); + qemu_fdt_add_subnode(fdt, nodename); + qemu_fdt_setprop_string(fdt, nodename, "compatible", "openrisc,ompic"); + qemu_fdt_setprop_cells(fdt, nodename, "reg", base, size); + qemu_fdt_setprop(fdt, nodename, "interrupt-controller", NULL, 0); + qemu_fdt_setprop_cell(fdt, nodename, "#interrupt-cells", 0); + qemu_fdt_setprop_cell(fdt, nodename, "interrupts", irq_pin); + g_free(nodename); } -static void openrisc_sim_serial_init(hwaddr base, int num_cpus, +static void openrisc_sim_serial_init(Or1ksimState *state, hwaddr base, + hwaddr size, int num_cpus, OpenRISCCPU *cpus[], int irq_pin) { + void *fdt = state->fdt; + char *nodename; qemu_irq serial_irq; int i; @@ -158,29 +259,45 @@ static void openrisc_sim_serial_init(hwaddr base, int num_cpus, } serial_mm_init(get_system_memory(), base, 0, serial_irq, 115200, serial_hd(0), DEVICE_NATIVE_ENDIAN); -} + /* Add device tree node for serial. */ + nodename = g_strdup_printf("/serial@%" HWADDR_PRIx, base); + qemu_fdt_add_subnode(fdt, nodename); + qemu_fdt_setprop_string(fdt, nodename, "compatible", "ns16550a"); + qemu_fdt_setprop_cells(fdt, nodename, "reg", base, size); + qemu_fdt_setprop_cell(fdt, nodename, "interrupts", irq_pin); + qemu_fdt_setprop_cell(fdt, nodename, "clock-frequency", OR1KSIM_CLK_MHZ); + qemu_fdt_setprop(fdt, nodename, "big-endian", NULL, 0); + + /* The /chosen node is created during fdt creation. */ + qemu_fdt_setprop_string(fdt, "/chosen", "stdout-path", nodename); + qemu_fdt_setprop_string(fdt, "/aliases", "uart0", nodename); + g_free(nodename); +} -static void openrisc_load_kernel(ram_addr_t ram_size, - const char *kernel_filename) +static hwaddr openrisc_load_kernel(ram_addr_t ram_size, + const char *kernel_filename) { long kernel_size; uint64_t elf_entry; + uint64_t high_addr; hwaddr entry; if (kernel_filename && !qtest_enabled()) { kernel_size = load_elf(kernel_filename, NULL, NULL, NULL, - &elf_entry, NULL, NULL, NULL, 1, EM_OPENRISC, - 1, 0); + &elf_entry, NULL, &high_addr, NULL, 1, + EM_OPENRISC, 1, 0); entry = elf_entry; if (kernel_size < 0) { kernel_size = load_uimage(kernel_filename, &entry, NULL, NULL, NULL, NULL); + high_addr = entry + kernel_size; } if (kernel_size < 0) { kernel_size = load_image_targphys(kernel_filename, KERNEL_LOAD_ADDR, ram_size - KERNEL_LOAD_ADDR); + high_addr = KERNEL_LOAD_ADDR + kernel_size; } if (entry <= 0) { @@ -192,7 +309,38 @@ static void openrisc_load_kernel(ram_addr_t ram_size, exit(1); } boot_info.bootstrap_pc = entry; + + return high_addr; } + return 0; +} + +static uint32_t openrisc_load_fdt(Or1ksimState *state, hwaddr load_start, + uint64_t mem_size) +{ + void *fdt = state->fdt; + uint32_t fdt_addr; + int ret; + int fdtsize = fdt_totalsize(fdt); + + if (fdtsize <= 0) { + error_report("invalid device-tree"); + exit(1); + } + + /* We put fdt right after the kernel and/or initrd. */ + fdt_addr = ROUND_UP(load_start, 4); + + ret = fdt_pack(fdt); + /* Should only fail if we've built a corrupted tree */ + g_assert(ret == 0); + /* copy in the device tree */ + qemu_fdt_dumpdtb(fdt, fdtsize); + + rom_add_blob_fixed_as("fdt", fdt, fdtsize, fdt_addr, + &address_space_memory); + + return fdt_addr; } static void openrisc_sim_init(MachineState *machine) @@ -200,7 +348,9 @@ static void openrisc_sim_init(MachineState *machine) ram_addr_t ram_size = machine->ram_size; const char *kernel_filename = machine->kernel_filename; OpenRISCCPU *cpus[OR1KSIM_CPUS_MAX] = {}; + Or1ksimState *state = OR1KSIM_MACHINE(machine); MemoryRegion *ram; + hwaddr load_addr; int n; unsigned int smp_cpus = machine->smp.cpus; @@ -221,22 +371,31 @@ static void openrisc_sim_init(MachineState *machine) memory_region_init_ram(ram, NULL, "openrisc.ram", ram_size, &error_fatal); memory_region_add_subregion(get_system_memory(), 0, ram); + openrisc_create_fdt(state, or1ksim_memmap, smp_cpus, machine->ram_size, + machine->kernel_cmdline); + if (nd_table[0].used) { - openrisc_sim_net_init(or1ksim_memmap[OR1KSIM_ETHOC].base, - or1ksim_memmap[OR1KSIM_ETHOC].base + 0x400, + openrisc_sim_net_init(state, or1ksim_memmap[OR1KSIM_ETHOC].base, + or1ksim_memmap[OR1KSIM_ETHOC].size, smp_cpus, cpus, OR1KSIM_ETHOC_IRQ, nd_table); } if (smp_cpus > 1) { - openrisc_sim_ompic_init(or1ksim_memmap[OR1KSIM_OMPIC].base, smp_cpus, - cpus, OR1KSIM_OMPIC_IRQ); + openrisc_sim_ompic_init(state, or1ksim_memmap[OR1KSIM_OMPIC].base, + or1ksim_memmap[OR1KSIM_UART].size, + smp_cpus, cpus, OR1KSIM_OMPIC_IRQ); } - openrisc_sim_serial_init(or1ksim_memmap[OR1KSIM_UART].base, smp_cpus, cpus, + openrisc_sim_serial_init(state, or1ksim_memmap[OR1KSIM_UART].base, + or1ksim_memmap[OR1KSIM_UART].size, smp_cpus, cpus, OR1KSIM_UART_IRQ); - openrisc_load_kernel(ram_size, kernel_filename); + load_addr = openrisc_load_kernel(ram_size, kernel_filename); + if (load_addr > 0) { + boot_info.fdt_addr = openrisc_load_fdt(state, load_addr, + machine->ram_size); + } } static void openrisc_sim_machine_init(ObjectClass *oc, void *data) From patchwork Sat Feb 26 01:59:24 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stafford Horne X-Patchwork-Id: 1598053 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: bilbo.ozlabs.org; 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Fri, 25 Feb 2022 17:59:43 -0800 (PST) From: Stafford Horne To: QEMU Development Subject: [PULL v2 6/6] hw/openrisc/openrisc_sim: Add support for initrd loading Date: Sat, 26 Feb 2022 10:59:24 +0900 Message-Id: <20220226015924.1293022-7-shorne@gmail.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20220226015924.1293022-1-shorne@gmail.com> References: <20220226015924.1293022-1-shorne@gmail.com> MIME-Version: 1.0 X-Host-Lookup-Failed: Reverse DNS lookup failed for 2607:f8b0:4864:20::102d (failed) Received-SPF: pass client-ip=2607:f8b0:4864:20::102d; envelope-from=shorne@gmail.com; helo=mail-pj1-x102d.google.com X-Spam_score_int: -6 X-Spam_score: -0.7 X-Spam_bar: / X-Spam_report: (-0.7 / 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, FREEMAIL_FROM=0.001, PDS_HP_HELO_NORDNS=0.659, RCVD_IN_DNSWL_NONE=-0.0001, RDNS_NONE=0.793, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=no 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: , Cc: Peter Maydell , Stafford Horne Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" The initrd passed via the command line is loaded into memory. It's location and size is then added to the device tree so the kernel knows where to find it. Signed-off-by: Stafford Horne Reviewed-by: Peter Maydell --- hw/openrisc/openrisc_sim.c | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) diff --git a/hw/openrisc/openrisc_sim.c b/hw/openrisc/openrisc_sim.c index e0e71c0faa..8184caa60b 100644 --- a/hw/openrisc/openrisc_sim.c +++ b/hw/openrisc/openrisc_sim.c @@ -315,6 +315,33 @@ static hwaddr openrisc_load_kernel(ram_addr_t ram_size, return 0; } +static hwaddr openrisc_load_initrd(Or1ksimState *state, const char *filename, + hwaddr load_start, uint64_t mem_size) +{ + void *fdt = state->fdt; + int size; + hwaddr start; + + /* We put the initrd right after the kernel; page aligned. */ + start = TARGET_PAGE_ALIGN(load_start); + + size = load_ramdisk(filename, start, mem_size - start); + if (size < 0) { + size = load_image_targphys(filename, start, mem_size - start); + if (size < 0) { + error_report("could not load ramdisk '%s'", filename); + exit(1); + } + } + + qemu_fdt_setprop_cell(fdt, "/chosen", + "linux,initrd-start", start); + qemu_fdt_setprop_cell(fdt, "/chosen", + "linux,initrd-end", start + size); + + return start + size; +} + static uint32_t openrisc_load_fdt(Or1ksimState *state, hwaddr load_start, uint64_t mem_size) { @@ -393,6 +420,10 @@ static void openrisc_sim_init(MachineState *machine) load_addr = openrisc_load_kernel(ram_size, kernel_filename); if (load_addr > 0) { + if (machine->initrd_filename) { + load_addr = openrisc_load_initrd(state, machine->initrd_filename, + load_addr, machine->ram_size); + } boot_info.fdt_addr = openrisc_load_fdt(state, load_addr, machine->ram_size); }