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kern: implement 13.1.0 kernel changes

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This commit is contained in:
Michael Scire 2021-10-25 17:34:47 -07:00
parent ebca23305e
commit 1d5f66be56
4 changed files with 10 additions and 2 deletions
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4
libraries/libmesosphere/include/mesosphere/arch/arm64/kern_cpu.hpp
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@ -52,6 +52,10 @@ namespace ams::kern::arch::arm64::cpu {
__asm__ __volatile__("dmb sy" ::: "memory");
}
ALWAYS_INLINE void DataMemoryBarrierInnerShareable() {
__asm__ __volatile__("dmb ish" ::: "memory");
}
ALWAYS_INLINE void InstructionMemoryBarrier() {
__asm__ __volatile__("isb" ::: "memory");
}

3
libraries/libmesosphere/include/mesosphere/kern_k_scheduler_lock.hpp
View file

@ -74,6 +74,9 @@ namespace ams::kern {
/* Release an instance of the lock. */
if ((--m_lock_count) == 0) {
/* Perform a memory barrier here. */
cpu::DataMemoryBarrierInnerShareable();
/* We're no longer going to hold the lock. Take note of what cores need scheduling. */
const u64 cores_needing_scheduling = SchedulerType::UpdateHighestPriorityThreads();

2
libraries/libvapours/include/vapours/svc/svc_version.hpp
View file

@ -58,7 +58,7 @@ namespace ams::svc {
/* This is the highest SVC version supported by Atmosphere, to be updated on new kernel releases. */
/* NOTE: Official kernel versions have SVC major = SDK major + 4, SVC minor = SDK minor. */
constexpr inline u32 SupportedKernelMajorVersion = ConvertToSvcMajorVersion(13);
constexpr inline u32 SupportedKernelMinorVersion = ConvertToSvcMinorVersion( 3);
constexpr inline u32 SupportedKernelMinorVersion = ConvertToSvcMinorVersion( 4);
constexpr inline u32 SupportedKernelVersion = EncodeKernelVersion(SupportedKernelMajorVersion, SupportedKernelMinorVersion);

3
mesosphere/kernel/source/arch/arm64/kern_k_scheduler_asm.s
View file

@ -126,7 +126,8 @@ _ZN3ams4kern10KScheduler12ScheduleImplEv:
cmp x7, x18
b.ne 1f
/* If they're the same, then we can just return as there's nothing to do. */
/* If they're the same, then we can just issue a memory barrier and return. */
dmb ish
ret
0: /* The interrupt task thread is runnable. */