mirrors/Atmosphere
1
0
Fork 0
mirror of https://github.com/Atmosphere-NX/Atmosphere.git synced 2025-05-24 19:54:22 -04:00
Code Issues Projects Releases Packages Wiki Activity

kern: implement KSchedulerLock

Browse source
This commit is contained in:
Michael Scire 2020-01-31 16:25:17 -08:00
parent 797c04d19f
commit 57222e8301
4 changed files with 160 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

20
libraries/libmesosphere/include/mesosphere/kern_k_scheduler.hpp
View file

@ -17,6 +17,7 @@
#include <mesosphere/kern_select_cpu.hpp>
#include <mesosphere/kern_k_thread.hpp>
#include <mesosphere/kern_k_priority_queue.hpp>
#include <mesosphere/kern_k_scheduler_lock.hpp>
namespace ams::kern {
@ -25,10 +26,14 @@ namespace ams::kern {
static_assert(KSchedulerPriorityQueue::NumCores == cpu::NumCores);
static_assert(KSchedulerPriorityQueue::NumPriority == BITSIZEOF(u64));
class KScopedSchedulerLock;
class KScheduler {
NON_COPYABLE(KScheduler);
NON_MOVEABLE(KScheduler);
public:
using LockType = KAbstractSchedulerLock<KScheduler>;
struct SchedulingState {
std::atomic<bool> needs_scheduling;
bool interrupt_task_thread_runnable;
@ -37,6 +42,9 @@ namespace ams::kern {
KThread *highest_priority_thread;
void *idle_thread_stack;
};
private:
friend class KScopedSchedulerLock;
static inline LockType s_scheduler_lock;
private:
SchedulingState state;
bool is_active;
@ -47,6 +55,18 @@ namespace ams::kern {
public:
KScheduler();
/* TODO: Actually implement KScheduler. This is a placeholder. */
public:
/* API used by KSchedulerLock */
static void DisableScheduling();
static void EnableScheduling();
static u64 UpdateHighestPriorityThreads();
static void EnableSchedulingAndSchedule(u64 cores_needing_scheduling);
};
class KScopedSchedulerLock {
public:
ALWAYS_INLINE KScopedSchedulerLock() { KScheduler::s_scheduler_lock.Lock(); }
ALWAYS_INLINE ~KScopedSchedulerLock() { KScheduler::s_scheduler_lock.Unlock(); }
};
}