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target/mips/cpu: Introduce mips_cpu_create_with_clock() helper 

Introduce an helper to create a MIPS CPU and connect it to
a reference clock. This helper is not MIPS specific, but so
far only MIPS CPUs need it.

Suggested-by: Huacai Chen <zltjiangshi@gmail.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20201012095804.3335117-13-f4bug@amsat.org>
This commit is contained in:
Philippe Mathieu-Daudé 2020-10-12 11:57:55 +02:00
parent a0713e85bf
commit 7aaab96a9b
2 changed files with 24 additions and 0 deletions
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12
target/mips/cpu.c
View File

@ -288,3 +288,15 @@ static void mips_cpu_register_types(void)
} }
type_init(mips_cpu_register_types) type_init(mips_cpu_register_types)
/* Could be used by generic CPU object */
MIPSCPU *mips_cpu_create_with_clock(const char *cpu_type, Clock *cpu_refclk)
{
DeviceState *cpu;
cpu = DEVICE(object_new(cpu_type));
qdev_connect_clock_in(cpu, "clk-in", cpu_refclk);
qdev_realize(cpu, NULL, &error_abort);
return MIPS_CPU(cpu);
}

12
target/mips/cpu.h
View File

@ -1307,4 +1307,16 @@ static inline void cpu_get_tb_cpu_state(CPUMIPSState *env, target_ulong *pc,
MIPS_HFLAG_HWRENA_ULR); MIPS_HFLAG_HWRENA_ULR);
} }
/**
* mips_cpu_create_with_clock:
* @typename: a MIPS CPU type.
* @cpu_refclk: this cpu input clock (an output clock of another device)
*
* Instantiates a MIPS CPU, set the input clock of the CPU to @cpu_refclk,
* then realizes the CPU.
*
* Returns: A #CPUState or %NULL if an error occurred.
*/
MIPSCPU *mips_cpu_create_with_clock(const char *cpu_type, Clock *cpu_refclk);
#endif /* MIPS_CPU_H */ #endif /* MIPS_CPU_H */