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exo2: implement smc cpu off

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Michael Scire 2020-05-25 22:32:54 -07:00 • committed by SciresM
parent 8a4019151b
commit 8e401f4daa
10 changed files with 272 additions and 6 deletions
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30
libraries/libexosphere/source/flow/flow_api.cpp
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@ -34,6 +34,18 @@ namespace ams::flow {
{ FLOW_CTLR_CPU3_CSR, FLOW_CTLR_HALT_CPU3_EVENTS, FLOW_CTLR_CC4_CORE3_CTRL, },
};
constexpr u32 GetHaltCpuEventsValue(bool resume_on_irq) {
if (resume_on_irq) {
return reg::Encode(FLOW_REG_BITS_ENUM(HALT_CPUN_EVENTS_FLOW_MODE, WAITEVENT),
FLOW_REG_BITS_ENUM(HALT_CPUN_EVENTS_LIC_IRQN, ENABLE),
FLOW_REG_BITS_ENUM(HALT_CPUN_EVENTS_LIC_FIQN, ENABLE),
FLOW_REG_BITS_ENUM(HALT_CPUN_EVENTS_GIC_IRQN, ENABLE),
FLOW_REG_BITS_ENUM(HALT_CPUN_EVENTS_GIC_FIQN, ENABLE));
} else {
return reg::Encode(FLOW_REG_BITS_ENUM(HALT_CPUN_EVENTS_FLOW_MODE, WAITEVENT));
}
}
}
void SetRegisterAddress(uintptr_t address) {
@ -48,4 +60,20 @@ namespace ams::flow {
reg::Write(g_register_address + offsets.halt_cpu_events, 0);
}
}
void SetCpuCsr(int core, u32 enable_ext) {
reg::Write(g_register_address + FlowControllerRegisterOffsets[core].cpu_csr, FLOW_REG_BITS_ENUM (CPUN_CSR_INTR_FLAG, TRUE),
FLOW_REG_BITS_ENUM (CPUN_CSR_EVENT_FLAG, TRUE),
FLOW_REG_BITS_VALUE(CPUN_CSR_ENABLE_EXT, enable_ext),
FLOW_REG_BITS_VALUE(CPUN_CSR_WAIT_WFI_BITMAP, (1u << core)),
FLOW_REG_BITS_ENUM (CPUN_CSR_ENABLE, ENABLE));
}
void SetHaltCpuEvents(int core, bool resume_on_irq) {
reg::Write(g_register_address + FlowControllerRegisterOffsets[core].halt_cpu_events, GetHaltCpuEventsValue(resume_on_irq));
}
void SetCc4Ctrl(int core, u32 value) {
reg::Write(g_register_address + FlowControllerRegisterOffsets[core].cc4_core_ctrl, value);
}
}