Refactor the AST27x0 SSP implementation to derive from the newly introduced AspeedCoprocessor base class rather than AspeedSoC. The AspeedSoC class contains many SoC-level fields and behaviors that are not applicable to coprocessor subsystems like SSP, leading to unnecessary coupling and code size.
This change moves the Aspeed27x0SSPSoCState structure definition into aspeed_coprocessor.h and updates related references in aspeed_ast27x0-ssp.c and aspeed_ast27x0-fc.c to use AspeedCoprocessorState and AspeedCoprocessorClass. Key updates include: - Replace inheritance from AspeedSoC -> AspeedCoprocessor. - Replace type casts and class access macros (ASPEED_SOC_*) with ASPEED_COPROCESSOR_*. This refactor improves modularity, reduces memory footprint, and prepares for future coprocessor variants to share a lighter-weight common base. No functional change. Signed-off-by: Jamin Lin <[email protected]> --- include/hw/arm/aspeed_coprocessor.h | 12 ++++++++++++ include/hw/arm/aspeed_soc.h | 12 ------------ hw/arm/aspeed_ast27x0-fc.c | 10 +++++----- hw/arm/aspeed_ast27x0-ssp.c | 29 ++++++++++++----------------- hw/arm/meson.build | 2 +- 5 files changed, 30 insertions(+), 35 deletions(-) diff --git a/include/hw/arm/aspeed_coprocessor.h b/include/hw/arm/aspeed_coprocessor.h index 6938dfe24c..927e8675b0 100644 --- a/include/hw/arm/aspeed_coprocessor.h +++ b/include/hw/arm/aspeed_coprocessor.h @@ -42,4 +42,16 @@ struct AspeedCoprocessorClass { qemu_irq (*get_irq)(void *ctx, int dev); }; +struct Aspeed27x0SSPSoCState { + AspeedCoprocessorState parent; + AspeedINTCState intc[2]; + UnimplementedDeviceState ipc[2]; + UnimplementedDeviceState scuio; + + ARMv7MState armv7m; +}; + +#define TYPE_ASPEED27X0SSP_SOC "aspeed27x0ssp-soc" +OBJECT_DECLARE_SIMPLE_TYPE(Aspeed27x0SSPSoCState, ASPEED27X0SSP_SOC) + #endif /* ASPEED_COPROCESSOR_H */ diff --git a/include/hw/arm/aspeed_soc.h b/include/hw/arm/aspeed_soc.h index 3cd9ad189f..b100a404f1 100644 --- a/include/hw/arm/aspeed_soc.h +++ b/include/hw/arm/aspeed_soc.h @@ -153,18 +153,6 @@ struct Aspeed10x0SoCState { ARMv7MState armv7m; }; -struct Aspeed27x0SSPSoCState { - AspeedSoCState parent; - AspeedINTCState intc[2]; - UnimplementedDeviceState ipc[2]; - UnimplementedDeviceState scuio; - - ARMv7MState armv7m; -}; - -#define TYPE_ASPEED27X0SSP_SOC "aspeed27x0ssp-soc" -OBJECT_DECLARE_SIMPLE_TYPE(Aspeed27x0SSPSoCState, ASPEED27X0SSP_SOC) - struct Aspeed27x0TSPSoCState { AspeedSoCState parent; AspeedINTCState intc[2]; diff --git a/hw/arm/aspeed_ast27x0-fc.c b/hw/arm/aspeed_ast27x0-fc.c index e598f57ca2..4315e8da98 100644 --- a/hw/arm/aspeed_ast27x0-fc.c +++ b/hw/arm/aspeed_ast27x0-fc.c @@ -21,7 +21,7 @@ #include "hw/loader.h" #include "hw/arm/boot.h" #include "hw/block/flash.h" - +#include "hw/arm/aspeed_coprocessor.h" #define TYPE_AST2700A1FC MACHINE_TYPE_NAME("ast2700fc") OBJECT_DECLARE_SIMPLE_TYPE(Ast2700FCState, AST2700A1FC); @@ -115,8 +115,8 @@ static bool ast2700fc_ca35_init(MachineState *machine, Error **errp) static bool ast2700fc_ssp_init(MachineState *machine, Error **errp) { - AspeedSoCState *soc; - AspeedSoCClass *sc; + AspeedCoprocessorState *soc; + AspeedCoprocessorClass *sc; Ast2700FCState *s = AST2700A1FC(machine); s->ssp_sysclk = clock_new(OBJECT(s), "SSP_SYSCLK"); clock_set_hz(s->ssp_sysclk, 200000000ULL); @@ -129,8 +129,8 @@ static bool ast2700fc_ssp_init(MachineState *machine, Error **errp) object_property_set_link(OBJECT(&s->ssp), "memory", OBJECT(&s->ssp_memory), &error_abort); - soc = ASPEED_SOC(&s->ssp); - sc = ASPEED_SOC_GET_CLASS(soc); + soc = ASPEED_COPROCESSOR(&s->ssp); + sc = ASPEED_COPROCESSOR_GET_CLASS(soc); aspeed_soc_uart_set_chr(soc->uart, ASPEED_DEV_UART4, sc->uarts_base, sc->uarts_num, serial_hd(1)); if (!qdev_realize(DEVICE(&s->ssp), NULL, errp)) { diff --git a/hw/arm/aspeed_ast27x0-ssp.c b/hw/arm/aspeed_ast27x0-ssp.c index 57dd588af4..0e68c0f6a8 100644 --- a/hw/arm/aspeed_ast27x0-ssp.c +++ b/hw/arm/aspeed_ast27x0-ssp.c @@ -14,6 +14,7 @@ #include "hw/qdev-clock.h" #include "hw/misc/unimp.h" #include "hw/arm/aspeed_soc.h" +#include "hw/arm/aspeed_coprocessor.h" #define AST2700_SSP_RAM_SIZE (32 * MiB) @@ -106,9 +107,9 @@ static struct nvic_intc_irq_info ast2700_ssp_intcmap[] = { static qemu_irq aspeed_soc_ast27x0ssp_get_irq(void *ctx, int dev) { - AspeedSoCState *s = (AspeedSoCState *)ctx; + AspeedCoprocessorState *s = (AspeedCoprocessorState *)ctx; Aspeed27x0SSPSoCState *a = ASPEED27X0SSP_SOC(s); - AspeedSoCClass *sc = ASPEED_SOC_GET_CLASS(s); + AspeedCoprocessorClass *sc = ASPEED_COPROCESSOR_GET_CLASS(s); int or_idx; int idx; @@ -130,8 +131,8 @@ static qemu_irq aspeed_soc_ast27x0ssp_get_irq(void *ctx, int dev) static void aspeed_soc_ast27x0ssp_init(Object *obj) { Aspeed27x0SSPSoCState *a = ASPEED27X0SSP_SOC(obj); - AspeedSoCState *s = ASPEED_SOC(obj); - AspeedSoCClass *sc = ASPEED_SOC_GET_CLASS(s); + AspeedCoprocessorState *s = ASPEED_COPROCESSOR(obj); + AspeedCoprocessorClass *sc = ASPEED_COPROCESSOR_GET_CLASS(s); int i; object_initialize_child(obj, "armv7m", &a->armv7m, TYPE_ARMV7M); @@ -161,8 +162,8 @@ static void aspeed_soc_ast27x0ssp_init(Object *obj) static void aspeed_soc_ast27x0ssp_realize(DeviceState *dev_soc, Error **errp) { Aspeed27x0SSPSoCState *a = ASPEED27X0SSP_SOC(dev_soc); - AspeedSoCState *s = ASPEED_SOC(dev_soc); - AspeedSoCClass *sc = ASPEED_SOC_GET_CLASS(s); + AspeedCoprocessorState *s = ASPEED_COPROCESSOR(dev_soc); + AspeedCoprocessorClass *sc = ASPEED_COPROCESSOR_GET_CLASS(s); DeviceState *armv7m; g_autofree char *sram_name = NULL; int uart; @@ -186,8 +187,8 @@ static void aspeed_soc_ast27x0ssp_realize(DeviceState *dev_soc, Error **errp) sram_name = g_strdup_printf("aspeed.dram.%d", CPU(a->armv7m.cpu)->cpu_index); - if (!memory_region_init_ram(&s->sram, OBJECT(s), sram_name, sc->sram_size, - errp)) { + if (!memory_region_init_ram(&s->sram, OBJECT(s), sram_name, + AST2700_SSP_RAM_SIZE, errp)) { return; } memory_region_add_subregion(s->memory, @@ -269,31 +270,25 @@ static void aspeed_soc_ast27x0ssp_class_init(ObjectClass *klass, const void *dat NULL }; DeviceClass *dc = DEVICE_CLASS(klass); - AspeedSoCClass *sc = ASPEED_SOC_CLASS(dc); + AspeedCoprocessorClass *sc = ASPEED_COPROCESSOR_CLASS(dc); - /* Reason: The Aspeed SoC can only be instantiated from a board */ + /* Reason: The Aspeed Coprocessor can only be instantiated from a board */ dc->user_creatable = false; dc->realize = aspeed_soc_ast27x0ssp_realize; sc->valid_cpu_types = valid_cpu_types; sc->silicon_rev = AST2700_A1_SILICON_REV; - sc->sram_size = AST2700_SSP_RAM_SIZE; - sc->spis_num = 0; - sc->ehcis_num = 0; - sc->wdts_num = 0; - sc->macs_num = 0; sc->uarts_num = 13; sc->uarts_base = ASPEED_DEV_UART0; sc->irqmap = aspeed_soc_ast27x0ssp_irqmap; sc->memmap = aspeed_soc_ast27x0ssp_memmap; - sc->num_cpus = 1; sc->get_irq = aspeed_soc_ast27x0ssp_get_irq; } static const TypeInfo aspeed_soc_ast27x0ssp_types[] = { { .name = TYPE_ASPEED27X0SSP_SOC, - .parent = TYPE_ASPEED_SOC, + .parent = TYPE_ASPEED_COPROCESSOR, .instance_size = sizeof(Aspeed27x0SSPSoCState), .instance_init = aspeed_soc_ast27x0ssp_init, .class_init = aspeed_soc_ast27x0ssp_class_init, diff --git a/hw/arm/meson.build b/hw/arm/meson.build index 56bdb88b11..b9e02ace7f 100644 --- a/hw/arm/meson.build +++ b/hw/arm/meson.build @@ -45,7 +45,6 @@ arm_ss.add(when: 'CONFIG_ASPEED_SOC', if_true: files( 'aspeed_soc_common.c', 'aspeed_ast2400.c', 'aspeed_ast2600.c', - 'aspeed_ast27x0-ssp.c', 'aspeed_ast27x0-tsp.c', 'aspeed_ast10x0.c', 'aspeed_eeprom.c', @@ -53,6 +52,7 @@ arm_ss.add(when: 'CONFIG_ASPEED_SOC', if_true: files( arm_common_ss.add(when: ['CONFIG_ASPEED_SOC', 'TARGET_AARCH64'], if_true: files( 'aspeed_ast27x0.c', 'aspeed_ast27x0-fc.c', + 'aspeed_ast27x0-ssp.c', 'aspeed_coprocessor_common.c')) arm_common_ss.add(when: 'CONFIG_MPS2', if_true: files('mps2.c')) arm_common_ss.add(when: 'CONFIG_MPS2', if_true: files('mps2-tz.c')) -- 2.43.0
