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kern: implement revised IPI/SGI semantics

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Michael Scire 2022-03-22 23:02:10 -07:00 • committed by SciresM
parent 9d89835ff8
commit ff07ba4201
9 changed files with 103 additions and 20 deletions
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1
libraries/libmesosphere/include/mesosphere/arch/arm64/kern_cpu.hpp
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@ -188,6 +188,7 @@ namespace ams::kern::arch::arm64::cpu {
/* Synchronization helpers. */
NOINLINE void SynchronizeAllCores();
void SynchronizeCores(u64 core_mask);
/* Cache management helpers. */
void StoreCacheForInit(void *addr, size_t size);

9
libraries/libmesosphere/include/mesosphere/arch/arm64/kern_k_interrupt_name.hpp
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@ -21,11 +21,12 @@ namespace ams::kern::arch::arm64 {
enum KInterruptName : s32 {
/* SGIs */
KInterruptName_ThreadTerminate = 4,
KInterruptName_CacheOperation = 5,
KInterruptName_Scheduler = 6,
KInterruptName_ThreadTerminate = 0,
KInterruptName_CacheOperation = 1,
KInterruptName_Scheduler = 2,
KInterruptName_CoreBarrier = 3,
KInterruptName_PerformanceCounter = 8,
KInterruptName_PerformanceCounter = 4,
/* PPIs */
#if defined(ATMOSPHERE_BOARD_NINTENDO_NX)

1
libraries/libmesosphere/include/mesosphere/kern_build_config.hpp
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@ -30,6 +30,7 @@
#endif
//#define MESOSPHERE_BUILD_FOR_TRACING
//#define MESOSPHERE_ENABLE_PERFORMANCE_COUNTER
#define MESOSPHERE_ENABLE_PANIC_REGISTER_DUMP
#define MESOSPHERE_ENABLE_HARDWARE_SINGLE_STEP

4
libraries/libmesosphere/include/mesosphere/kern_k_capabilities.hpp
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@ -184,6 +184,7 @@ namespace ams::kern {
svc::SvcAccessFlagSet m_svc_access_flags;
InterruptFlagSet m_irq_access_flags;
u64 m_core_mask;
u64 m_phys_core_mask;
u64 m_priority_mask;
util::BitPack32 m_debug_capabilities;
s32 m_handle_table_size;
@ -227,7 +228,7 @@ namespace ams::kern {
Result SetCapabilities(const u32 *caps, s32 num_caps, KProcessPageTable *page_table);
Result SetCapabilities(svc::KUserPointer<const u32 *> user_caps, s32 num_caps, KProcessPageTable *page_table);
public:
constexpr explicit KCapabilities(util::ConstantInitializeTag) : m_svc_access_flags{}, m_irq_access_flags{}, m_core_mask{}, m_priority_mask{}, m_debug_capabilities{0}, m_handle_table_size{}, m_intended_kernel_version{}, m_program_type{} { /* ... */ }
constexpr explicit KCapabilities(util::ConstantInitializeTag) : m_svc_access_flags{}, m_irq_access_flags{}, m_core_mask{}, m_phys_core_mask{}, m_priority_mask{}, m_debug_capabilities{0}, m_handle_table_size{}, m_intended_kernel_version{}, m_program_type{} { /* ... */ }
KCapabilities() { /* ... */ }
Result Initialize(const u32 *caps, s32 num_caps, KProcessPageTable *page_table);
@ -236,6 +237,7 @@ namespace ams::kern {
static Result CheckCapabilities(svc::KUserPointer<const u32 *> user_caps, s32 num_caps);
constexpr u64 GetCoreMask() const { return m_core_mask; }
constexpr u64 GetPhysicalCoreMask() const { return m_phys_core_mask; }
constexpr u64 GetPriorityMask() const { return m_priority_mask; }
constexpr s32 GetHandleTableSize() const { return m_handle_table_size; }

1
libraries/libmesosphere/include/mesosphere/kern_k_process.hpp
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@ -160,6 +160,7 @@ namespace ams::kern {
constexpr State GetState() const { return m_state; }
constexpr u64 GetCoreMask() const { return m_capabilities.GetCoreMask(); }
constexpr u64 GetPhysicalCoreMask() const { return m_capabilities.GetPhysicalCoreMask(); }
constexpr u64 GetPriorityMask() const { return m_capabilities.GetPriorityMask(); }
constexpr s32 GetIdealCoreId() const { return m_ideal_core_id; }

10
libraries/libmesosphere/include/mesosphere/kern_select_cpu.hpp
View file

@ -67,6 +67,16 @@ namespace ams::kern {
return mask;
}();
static constexpr inline u64 ConvertVirtualCoreMaskToPhysical(u64 v_core_mask) {
u64 p_core_mask = 0;
while (v_core_mask != 0) {
const u64 next = __builtin_ctzll(v_core_mask);
v_core_mask &= ~(static_cast<u64>(1) << next);
p_core_mask |= (static_cast<u64>(1) << cpu::VirtualToPhysicalCoreMap[next]);
}
return p_core_mask;
}
}
static_assert(cpu::NumCores <= cpu::NumVirtualCores);