summaryrefslogtreecommitdiffstats
path: root/src/core/hle/kernel
diff options
context:
space:
mode:
authorbunnei <bunneidev@gmail.com>2018-07-21 19:48:30 +0200
committerGitHub <noreply@github.com>2018-07-21 19:48:30 +0200
commitfe2498a65038bdea6ac5e4a2fad4fc992d4ff4ba (patch)
treee4d5cfdca67efdf79956f275f346f68292629ade /src/core/hle/kernel
parentMerge pull request #753 from lioncash/const (diff)
parentCPU: Save and restore the TPIDR_EL0 system register on every context switch. (diff)
downloadyuzu-fe2498a65038bdea6ac5e4a2fad4fc992d4ff4ba.tar
yuzu-fe2498a65038bdea6ac5e4a2fad4fc992d4ff4ba.tar.gz
yuzu-fe2498a65038bdea6ac5e4a2fad4fc992d4ff4ba.tar.bz2
yuzu-fe2498a65038bdea6ac5e4a2fad4fc992d4ff4ba.tar.lz
yuzu-fe2498a65038bdea6ac5e4a2fad4fc992d4ff4ba.tar.xz
yuzu-fe2498a65038bdea6ac5e4a2fad4fc992d4ff4ba.tar.zst
yuzu-fe2498a65038bdea6ac5e4a2fad4fc992d4ff4ba.zip
Diffstat (limited to 'src/core/hle/kernel')
-rw-r--r--src/core/hle/kernel/scheduler.cpp3
-rw-r--r--src/core/hle/kernel/thread.cpp1
-rw-r--r--src/core/hle/kernel/thread.h9
3 files changed, 13 insertions, 0 deletions
diff --git a/src/core/hle/kernel/scheduler.cpp b/src/core/hle/kernel/scheduler.cpp
index f7e25cbf5..e307eec98 100644
--- a/src/core/hle/kernel/scheduler.cpp
+++ b/src/core/hle/kernel/scheduler.cpp
@@ -56,6 +56,8 @@ void Scheduler::SwitchContext(Thread* new_thread) {
if (previous_thread) {
previous_thread->last_running_ticks = CoreTiming::GetTicks();
cpu_core->SaveContext(previous_thread->context);
+ // Save the TPIDR_EL0 system register in case it was modified.
+ previous_thread->tpidr_el0 = cpu_core->GetTPIDR_EL0();
if (previous_thread->status == ThreadStatus::Running) {
// This is only the case when a reschedule is triggered without the current thread
@@ -87,6 +89,7 @@ void Scheduler::SwitchContext(Thread* new_thread) {
cpu_core->LoadContext(new_thread->context);
cpu_core->SetTlsAddress(new_thread->GetTLSAddress());
+ cpu_core->SetTPIDR_EL0(new_thread->GetTPIDR_EL0());
cpu_core->ClearExclusiveState();
} else {
current_thread = nullptr;
diff --git a/src/core/hle/kernel/thread.cpp b/src/core/hle/kernel/thread.cpp
index 53f2e861e..cd85c4b7c 100644
--- a/src/core/hle/kernel/thread.cpp
+++ b/src/core/hle/kernel/thread.cpp
@@ -312,6 +312,7 @@ ResultVal<SharedPtr<Thread>> Thread::Create(std::string name, VAddr entry_point,
thread->status = ThreadStatus::Dormant;
thread->entry_point = entry_point;
thread->stack_top = stack_top;
+ thread->tpidr_el0 = 0;
thread->nominal_priority = thread->current_priority = priority;
thread->last_running_ticks = CoreTiming::GetTicks();
thread->processor_id = processor_id;
diff --git a/src/core/hle/kernel/thread.h b/src/core/hle/kernel/thread.h
index 47881ec20..6218960d2 100644
--- a/src/core/hle/kernel/thread.h
+++ b/src/core/hle/kernel/thread.h
@@ -183,6 +183,14 @@ public:
}
/*
+ * Returns the value of the TPIDR_EL0 Read/Write system register for this thread.
+ * @returns The value of the TPIDR_EL0 register.
+ */
+ u64 GetTPIDR_EL0() const {
+ return tpidr_el0;
+ }
+
+ /*
* Returns the address of the current thread's command buffer, located in the TLS.
* @returns VAddr of the thread's command buffer.
*/
@@ -213,6 +221,7 @@ public:
s32 processor_id;
VAddr tls_address; ///< Virtual address of the Thread Local Storage of the thread
+ u64 tpidr_el0; ///< TPIDR_EL0 read/write system register.
SharedPtr<Process> owner_process; ///< Process that owns this thread