diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/Kconfig | 2 | ||||
| -rw-r--r-- | src/lib/thread.c | 27 |
2 files changed, 6 insertions, 23 deletions
diff --git a/src/Kconfig b/src/Kconfig index 09bc22dad1..ea05215bdd 100644 --- a/src/Kconfig +++ b/src/Kconfig @@ -677,7 +677,7 @@ config TIMER_QUEUE config COOP_MULTITASKING def_bool n - depends on TIMER_QUEUE && ARCH_X86 + depends on TIMER_QUEUE && ARCH_X86 && CPU_INFO_V2 help Cooperative multitasking allows callbacks to be multiplexed on the main thread of ramstage. With this enabled it allows for multiple diff --git a/src/lib/thread.c b/src/lib/thread.c index 2ff09a50d5..ac8460c964 100644 --- a/src/lib/thread.c +++ b/src/lib/thread.c @@ -36,28 +36,17 @@ static struct thread all_threads[TOTAL_NUM_THREADS]; static struct thread *runnable_threads; static struct thread *free_threads; -static inline struct cpu_info *thread_cpu_info(const struct thread *t) -{ - return (void *)(t->stack_orig); -} - static inline int thread_can_yield(const struct thread *t) { return (t != NULL && t->can_yield > 0); } -/* Assumes current CPU info can switch. */ -static inline struct thread *cpu_info_to_thread(const struct cpu_info *ci) -{ - return ci->thread; -} - static inline struct thread *current_thread(void) { if (!initialized) return NULL; - return cpu_info_to_thread(cpu_info()); + return cpu_info()->thread; } static inline int thread_list_empty(struct thread **list) @@ -94,21 +83,12 @@ static inline struct thread *pop_runnable(void) static inline struct thread *get_free_thread(void) { struct thread *t; - struct cpu_info *ci; - struct cpu_info *new_ci; if (thread_list_empty(&free_threads)) return NULL; t = pop_thread(&free_threads); - ci = cpu_info(); - - /* Initialize the cpu_info structure on the new stack. */ - new_ci = thread_cpu_info(t); - *new_ci = *ci; - new_ci->thread = t; - /* Reset the current stack value to the original. */ t->stack_current = t->stack_orig; @@ -134,6 +114,7 @@ __noreturn static enum cb_err idle_thread(void *unused) static void schedule(struct thread *t) { struct thread *current = current_thread(); + struct cpu_info *ci = cpu_info(); /* If t is NULL need to find new runnable thread. */ if (t == NULL) { @@ -148,6 +129,8 @@ static void schedule(struct thread *t) if (t->handle) t->handle->state = THREAD_STARTED; + ci->thread = t; + switch_to_thread(t->stack_current, ¤t->stack_current); } @@ -279,7 +262,7 @@ static void threads_initialize(void) t->id = 0; t->can_yield = 1; - stack_top = &thread_stacks[CONFIG_STACK_SIZE] - sizeof(struct cpu_info); + stack_top = &thread_stacks[CONFIG_STACK_SIZE]; for (i = 1; i < TOTAL_NUM_THREADS; i++) { t = &all_threads[i]; t->stack_orig = (uintptr_t)stack_top; |