[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[PULL 13/15] hw/rx: Add RX GDB simulator
From: |
Philippe Mathieu-Daudé |
Subject: |
[PULL 13/15] hw/rx: Add RX GDB simulator |
Date: |
Sun, 21 Jun 2020 14:48:05 +0200 |
From: Yoshinori Sato <ysato@users.sourceforge.jp>
Add the RX machine internally simulated in GDB.
Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
[PMD: Use TYPE_RX62N_CPU, use #define for RX62N_NR_TMR/CMT/SCI,
renamed CPU -> MCU, device -> microcontroller]
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20200224141923.82118-18-ysato@users.sourceforge.jp>
[PMD: Split of MCU, rename gdbsim, Add gdbsim-r5f562n7/r5f562n8]
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
---
default-configs/rx-softmmu.mak | 1 +
include/hw/rx/rx62n.h | 4 +
hw/rx/rx-gdbsim.c | 196 +++++++++++++++++++++++++++++++++
MAINTAINERS | 7 ++
hw/rx/Kconfig | 4 +
hw/rx/Makefile.objs | 1 +
6 files changed, 213 insertions(+)
create mode 100644 hw/rx/rx-gdbsim.c
diff --git a/default-configs/rx-softmmu.mak b/default-configs/rx-softmmu.mak
index 7c4eb2c1a0..df2b4e4f42 100644
--- a/default-configs/rx-softmmu.mak
+++ b/default-configs/rx-softmmu.mak
@@ -1,2 +1,3 @@
# Default configuration for rx-softmmu
+CONFIG_RX_GDBSIM=y
diff --git a/include/hw/rx/rx62n.h b/include/hw/rx/rx62n.h
index 1d3e6a5cad..aa94758c27 100644
--- a/include/hw/rx/rx62n.h
+++ b/include/hw/rx/rx62n.h
@@ -37,6 +37,10 @@
#define TYPE_R5F562N7_MCU "r5f562n7-mcu"
#define TYPE_R5F562N8_MCU "r5f562n8-mcu"
+#define EXT_CS_BASE 0x01000000
+#define VECTOR_TABLE_BASE 0xffffff80
+#define RX62N_CFLASH_BASE 0xfff80000
+
#define RX62N_NR_TMR 2
#define RX62N_NR_CMT 2
#define RX62N_NR_SCI 6
diff --git a/hw/rx/rx-gdbsim.c b/hw/rx/rx-gdbsim.c
new file mode 100644
index 0000000000..8cd7a438f2
--- /dev/null
+++ b/hw/rx/rx-gdbsim.c
@@ -0,0 +1,196 @@
+/*
+ * RX QEMU GDB simulator
+ *
+ * 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 WITHOUT
+ * 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 along with
+ * this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "qemu/osdep.h"
+#include "qemu/error-report.h"
+#include "qapi/error.h"
+#include "qemu-common.h"
+#include "cpu.h"
+#include "hw/hw.h"
+#include "hw/sysbus.h"
+#include "hw/loader.h"
+#include "hw/rx/rx62n.h"
+#include "sysemu/sysemu.h"
+#include "sysemu/qtest.h"
+#include "sysemu/device_tree.h"
+#include "hw/boards.h"
+
+/* Same address of GDB integrated simulator */
+#define SDRAM_BASE EXT_CS_BASE
+
+typedef struct RxGdbSimMachineClass {
+ /*< private >*/
+ MachineClass parent_class;
+ /*< public >*/
+ const char *mcu_name;
+ uint32_t xtal_freq_hz;
+} RxGdbSimMachineClass;
+
+typedef struct RxGdbSimMachineState {
+ /*< private >*/
+ MachineState parent_obj;
+ /*< public >*/
+ RX62NState mcu;
+} RxGdbSimMachineState;
+
+#define TYPE_RX_GDBSIM_MACHINE MACHINE_TYPE_NAME("rx62n-common")
+
+#define RX_GDBSIM_MACHINE(obj) \
+ OBJECT_CHECK(RxGdbSimMachineState, (obj), TYPE_RX_GDBSIM_MACHINE)
+
+#define RX_GDBSIM_MACHINE_CLASS(klass) \
+ OBJECT_CLASS_CHECK(RxGdbSimMachineClass, (klass), TYPE_RX_GDBSIM_MACHINE)
+#define RX_GDBSIM_MACHINE_GET_CLASS(obj) \
+ OBJECT_GET_CLASS(RxGdbSimMachineClass, (obj), TYPE_RX_GDBSIM_MACHINE)
+
+static void rx_load_image(RXCPU *cpu, const char *filename,
+ uint32_t start, uint32_t size)
+{
+ static uint32_t extable[32];
+ long kernel_size;
+ int i;
+
+ kernel_size = load_image_targphys(filename, start, size);
+ if (kernel_size < 0) {
+ fprintf(stderr, "qemu: could not load kernel '%s'\n", filename);
+ exit(1);
+ }
+ cpu->env.pc = start;
+
+ /* setup exception trap trampoline */
+ /* linux kernel only works little-endian mode */
+ for (i = 0; i < ARRAY_SIZE(extable); i++) {
+ extable[i] = cpu_to_le32(0x10 + i * 4);
+ }
+ rom_add_blob_fixed("extable", extable, sizeof(extable), VECTOR_TABLE_BASE);
+}
+
+static void rx_gdbsim_init(MachineState *machine)
+{
+ MachineClass *mc = MACHINE_GET_CLASS(machine);
+ RxGdbSimMachineState *s = RX_GDBSIM_MACHINE(machine);
+ RxGdbSimMachineClass *rxc = RX_GDBSIM_MACHINE_GET_CLASS(machine);
+ MemoryRegion *sysmem = get_system_memory();
+ const char *kernel_filename = machine->kernel_filename;
+ const char *dtb_filename = machine->dtb;
+
+ if (machine->ram_size < mc->default_ram_size) {
+ error_report("Invalid RAM size, should be more than %" PRIi64 " Bytes",
+ mc->default_ram_size);
+ }
+
+ /* Allocate memory space */
+ memory_region_add_subregion(sysmem, SDRAM_BASE, machine->ram);
+
+ /* Initialize MCU */
+ object_initialize_child(OBJECT(machine), "mcu", &s->mcu, rxc->mcu_name);
+ object_property_set_link(OBJECT(&s->mcu), OBJECT(sysmem),
+ "main-bus", &error_abort);
+ object_property_set_uint(OBJECT(&s->mcu), rxc->xtal_freq_hz,
+ "xtal-frequency-hz", &error_abort);
+ object_property_set_bool(OBJECT(&s->mcu), kernel_filename != NULL,
+ "load-kernel", &error_abort);
+ qdev_realize(DEVICE(&s->mcu), NULL, &error_abort);
+
+ /* Load kernel and dtb */
+ if (kernel_filename) {
+ ram_addr_t kernel_offset;
+
+ /*
+ * The kernel image is loaded into
+ * the latter half of the SDRAM space.
+ */
+ kernel_offset = machine->ram_size / 2;
+ rx_load_image(RXCPU(first_cpu), kernel_filename,
+ SDRAM_BASE + kernel_offset, kernel_offset);
+ if (dtb_filename) {
+ ram_addr_t dtb_offset;
+ int dtb_size;
+ void *dtb;
+
+ dtb = load_device_tree(dtb_filename, &dtb_size);
+ if (dtb == NULL) {
+ error_report("Couldn't open dtb file %s", dtb_filename);
+ exit(1);
+ }
+ if (machine->kernel_cmdline &&
+ qemu_fdt_setprop_string(dtb, "/chosen", "bootargs",
+ machine->kernel_cmdline) < 0) {
+ error_report("Couldn't set /chosen/bootargs");
+ exit(1);
+ }
+ /* DTB is located at the end of SDRAM space. */
+ dtb_offset = machine->ram_size - dtb_size;
+ rom_add_blob_fixed("dtb", dtb, dtb_size,
+ SDRAM_BASE + dtb_offset);
+ /* Set dtb address to R1 */
+ RXCPU(first_cpu)->env.regs[1] = SDRAM_BASE + dtb_offset;
+ }
+ }
+}
+
+static void rx_gdbsim_class_init(ObjectClass *oc, void *data)
+{
+ MachineClass *mc = MACHINE_CLASS(oc);
+
+ mc->init = rx_gdbsim_init;
+ mc->default_cpu_type = TYPE_RX62N_CPU;
+ mc->default_ram_size = 16 * MiB;
+ mc->default_ram_id = "ext-sdram";
+}
+
+static void rx62n7_class_init(ObjectClass *oc, void *data)
+{
+ RxGdbSimMachineClass *rxc = RX_GDBSIM_MACHINE_CLASS(oc);
+ MachineClass *mc = MACHINE_CLASS(oc);
+
+ rxc->mcu_name = TYPE_R5F562N7_MCU;
+ rxc->xtal_freq_hz = 12 * 1000 * 1000;
+ mc->desc = "gdb simulator (R5F562N7 MCU and external RAM)";
+};
+
+static void rx62n8_class_init(ObjectClass *oc, void *data)
+{
+ RxGdbSimMachineClass *rxc = RX_GDBSIM_MACHINE_CLASS(oc);
+ MachineClass *mc = MACHINE_CLASS(oc);
+
+ rxc->mcu_name = TYPE_R5F562N8_MCU;
+ rxc->xtal_freq_hz = 12 * 1000 * 1000;
+ mc->desc = "gdb simulator (R5F562N8 MCU and external RAM)";
+};
+
+static const TypeInfo rx_gdbsim_types[] = {
+ {
+ .name = MACHINE_TYPE_NAME("gdbsim-r5f562n7"),
+ .parent = TYPE_RX_GDBSIM_MACHINE,
+ .class_init = rx62n7_class_init,
+ }, {
+ .name = MACHINE_TYPE_NAME("gdbsim-r5f562n8"),
+ .parent = TYPE_RX_GDBSIM_MACHINE,
+ .class_init = rx62n8_class_init,
+ }, {
+ .name = TYPE_RX_GDBSIM_MACHINE,
+ .parent = TYPE_MACHINE,
+ .instance_size = sizeof(RxGdbSimMachineState),
+ .class_size = sizeof(RxGdbSimMachineClass),
+ .class_init = rx_gdbsim_class_init,
+ .abstract = true,
+ }
+};
+
+DEFINE_TYPES(rx_gdbsim_types)
diff --git a/MAINTAINERS b/MAINTAINERS
index 71308a485b..a16e167721 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1252,6 +1252,13 @@ S: Supported
F: hw/riscv/opentitan.c
F: include/hw/riscv/opentitan.h
+RX Machines
+-----------
+rx-gdbsim
+M: Yoshinori Sato <ysato@users.sourceforge.jp>
+S: Maintained
+F: hw/rx/rx-gdbsim.c
+
SH4 Machines
------------
R2D
diff --git a/hw/rx/Kconfig b/hw/rx/Kconfig
index e7b1c59516..2b297c5a6a 100644
--- a/hw/rx/Kconfig
+++ b/hw/rx/Kconfig
@@ -4,3 +4,7 @@ config RX62N_MCU
select RENESAS_TMR
select RENESAS_CMT
select RENESAS_SCI
+
+config RX_GDBSIM
+ bool
+ select RX62N_MCU
diff --git a/hw/rx/Makefile.objs b/hw/rx/Makefile.objs
index fe19ee7984..4ef6b9e5b1 100644
--- a/hw/rx/Makefile.objs
+++ b/hw/rx/Makefile.objs
@@ -1 +1,2 @@
obj-$(CONFIG_RX62N_MCU) += rx62n.o
+obj-$(CONFIG_RX_GDBSIM) += rx-gdbsim.o
--
2.21.3
- [PULL 02/15] MAINTAINERS: Add an entry for common Renesas peripherals, (continued)
- [PULL 02/15] MAINTAINERS: Add an entry for common Renesas peripherals, Philippe Mathieu-Daudé, 2020/06/21
- [PULL 03/15] hw/sh4: Use MemoryRegion typedef, Philippe Mathieu-Daudé, 2020/06/21
- [PULL 05/15] hw/timer/sh_timer: Remove unused 'qemu/timer.h' include, Philippe Mathieu-Daudé, 2020/06/21
- [PULL 04/15] hw/sh4: Extract timer definitions to 'hw/timer/tmu012.h', Philippe Mathieu-Daudé, 2020/06/21
- [PULL 06/15] hw/intc: RX62N interrupt controller (ICUa), Philippe Mathieu-Daudé, 2020/06/21
- [PULL 07/15] hw/timer: RX62N 8-Bit timer (TMR), Philippe Mathieu-Daudé, 2020/06/21
- [PULL 09/15] hw/char: RX62N serial communication interface (SCI), Philippe Mathieu-Daudé, 2020/06/21
- [PULL 08/15] hw/timer: RX62N compare match timer (CMT), Philippe Mathieu-Daudé, 2020/06/21
- [PULL 11/15] hw/rx: Honor -accel qtest, Philippe Mathieu-Daudé, 2020/06/21
- [PULL 10/15] hw/rx: RX62N microcontroller (MCU), Philippe Mathieu-Daudé, 2020/06/21
- [PULL 13/15] hw/rx: Add RX GDB simulator,
Philippe Mathieu-Daudé <=
- [PULL 14/15] BootLinuxConsoleTest: Test the RX GDB simulator, Philippe Mathieu-Daudé, 2020/06/21
- [PULL 15/15] docs: Document the RX target, Philippe Mathieu-Daudé, 2020/06/21
- [PULL 12/15] hw/rx: Register R5F562N7 and R5F562N8 MCUs, Philippe Mathieu-Daudé, 2020/06/21
- Re: [PULL 00/15] Renesas hardware patches for 2020-06-21, Peter Maydell, 2020/06/22
- Re: [PULL 00/15] Renesas hardware patches for 2020-06-21, Peter Maydell, 2020/06/22
- Re: [PULL 00/15] Renesas hardware patches for 2020-06-21, Philippe Mathieu-Daudé, 2020/06/22
- Re: [PULL 00/15] Renesas hardware patches for 2020-06-21, Aleksandar Markovic, 2020/06/22
- Re: [PULL 00/15] Renesas hardware patches for 2020-06-21, Aleksandar Markovic, 2020/06/22
- Re: [PULL 00/15] Renesas hardware patches for 2020-06-21, Philippe Mathieu-Daudé, 2020/06/22
- Re: [PULL 00/15] Renesas hardware patches for 2020-06-21, Aleksandar Markovic, 2020/06/22