kernel: init: activate FPU for main thread
This patch activates FPU feature for main thread if FPU related configs (FPU, FPU_SHARING) are enabled. Signed-off-by: Katsuhiro Suzuki <katsuhiro@katsuster.net>
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1 changed files with 9 additions and 1 deletions
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@ -233,6 +233,7 @@ static void init_idle_thread(int i)
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static char *prepare_multithreading(void)
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{
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char *stack_ptr;
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uint32_t opt;
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/* _kernel.ready_q is all zeroes */
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z_sched_init();
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@ -249,11 +250,18 @@ static char *prepare_multithreading(void)
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*/
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_kernel.ready_q.cache = &z_main_thread;
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#endif
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opt = K_ESSENTIAL;
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#if defined(CONFIG_FPU) && defined(CONFIG_FPU_SHARING)
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/* Enable FPU in main thread */
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opt |= K_FP_REGS;
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#endif
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stack_ptr = z_setup_new_thread(&z_main_thread, z_main_stack,
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CONFIG_MAIN_STACK_SIZE, bg_thread_main,
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NULL, NULL, NULL,
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CONFIG_MAIN_THREAD_PRIORITY,
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K_ESSENTIAL, "main");
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opt, "main");
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z_mark_thread_as_started(&z_main_thread);
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z_ready_thread(&z_main_thread);
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