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kernel: describe detailed means of K_FP_REGS flag

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Current brief of the flag is ambiguous. This patch adds more details
about K_FP_REGS flag.

Signed-off-by: Katsuhiro Suzuki <katsuhiro@katsuster.net>
This commit is contained in:
Katsuhiro Suzuki 2020-12-16 11:22:13 +09:00 committed by Ioannis Glaropoulos
parent 129ddfe5c6
commit fadef43433
1 changed files with 7 additions and 1 deletions
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8
include/kernel.h
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@ -204,7 +204,13 @@ extern void k_thread_foreach_unlocked(
#if defined(CONFIG_FPU_SHARING)
/**
* @brief thread uses floating point registers
* @brief FPU registers are managed by context switch
*
* @details
* This option indicates that the thread uses the CPU's floating point
* registers. This instructs the kernel to take additional steps to save
* and restore the contents of these registers when scheduling the thread.
* No effect if @option{CONFIG_FPU_SHARING} is not enabled.
*/
#define K_FP_REGS (BIT(1))
#endif