michaelh/zephyr
1
0
Fork 0
Code Releases Activity

kernel: init: activate FPU for main thread

Browse source 
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>
This commit is contained in:
Katsuhiro Suzuki 2020-12-05 00:03:24 +09:00 • committed by Anas Nashif
commit 8453a73ede
1 changed files with 9 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

10
kernel/init.c
View file

@ -233,6 +233,7 @@ static void init_idle_thread(int i)
static char *prepare_multithreading(void)
{
char *stack_ptr;
uint32_t opt;
/* _kernel.ready_q is all zeroes */
z_sched_init();
@ -249,11 +250,18 @@ static char *prepare_multithreading(void)
*/
_kernel.ready_q.cache = &z_main_thread;
#endif
opt = K_ESSENTIAL;
#if defined(CONFIG_FPU) && defined(CONFIG_FPU_SHARING)
/* Enable FPU in main thread */
opt |= K_FP_REGS;
#endif
stack_ptr = z_setup_new_thread(&z_main_thread, z_main_stack,
CONFIG_MAIN_STACK_SIZE, bg_thread_main,
NULL, NULL, NULL,
CONFIG_MAIN_THREAD_PRIORITY,
K_ESSENTIAL, "main");
opt, "main");
z_mark_thread_as_started(&z_main_thread);
z_ready_thread(&z_main_thread);