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kern: implement 13.1.0 kernel changes
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ebca23305e
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1d5f66be56
4 changed files with 10 additions and 2 deletions
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@ -52,6 +52,10 @@ namespace ams::kern::arch::arm64::cpu {
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__asm__ __volatile__("dmb sy" ::: "memory");
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}
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ALWAYS_INLINE void DataMemoryBarrierInnerShareable() {
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__asm__ __volatile__("dmb ish" ::: "memory");
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}
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ALWAYS_INLINE void InstructionMemoryBarrier() {
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__asm__ __volatile__("isb" ::: "memory");
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}
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@ -74,6 +74,9 @@ namespace ams::kern {
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/* Release an instance of the lock. */
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if ((--m_lock_count) == 0) {
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/* Perform a memory barrier here. */
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cpu::DataMemoryBarrierInnerShareable();
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/* We're no longer going to hold the lock. Take note of what cores need scheduling. */
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const u64 cores_needing_scheduling = SchedulerType::UpdateHighestPriorityThreads();
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@ -58,7 +58,7 @@ namespace ams::svc {
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/* This is the highest SVC version supported by Atmosphere, to be updated on new kernel releases. */
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/* NOTE: Official kernel versions have SVC major = SDK major + 4, SVC minor = SDK minor. */
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constexpr inline u32 SupportedKernelMajorVersion = ConvertToSvcMajorVersion(13);
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constexpr inline u32 SupportedKernelMinorVersion = ConvertToSvcMinorVersion( 3);
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constexpr inline u32 SupportedKernelMinorVersion = ConvertToSvcMinorVersion( 4);
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constexpr inline u32 SupportedKernelVersion = EncodeKernelVersion(SupportedKernelMajorVersion, SupportedKernelMinorVersion);
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@ -126,7 +126,8 @@ _ZN3ams4kern10KScheduler12ScheduleImplEv:
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cmp x7, x18
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b.ne 1f
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/* If they're the same, then we can just return as there's nothing to do. */
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/* If they're the same, then we can just issue a memory barrier and return. */
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dmb ish
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ret
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0: /* The interrupt task thread is runnable. */
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