Commit c9208b38 authored by honglin leng's avatar honglin leng Committed by Henrik Brix Andersen
Browse files

arm64: smp: Fix cache operations in the SMP 



The arm64_cpu_boot_params will be read on other cores

call sys_cache_data_flush_range flush the data from the cache to RAM.

This ensures that other cores can access the correct data.

Signed-off-by: default avatarhonglin leng <a909204013@gmail.com>
parent 54c04898

arch/arm64/core/smp.c

+1 −1
Original line number Diff line number Diff line
@@ -101,7 +101,7 @@ void arch_start_cpu(int cpu_num, k_thread_stack_t *stack, int sz, 
		/* store mpid last as this is our synchronization point */

		arm64_cpu_boot_params.mpid = cpu_mpid;



		sys_cache_data_invd_range((void *)&arm64_cpu_boot_params,

		sys_cache_data_flush_range((void *)&arm64_cpu_boot_params,

					  sizeof(arm64_cpu_boot_params));



		if (pm_cpu_on(cpu_mpid, (uint64_t)&__start)) {

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