diff options
Diffstat (limited to 'src/include/arch/ppc.H')
| -rw-r--r-- | src/include/arch/ppc.H | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/src/include/arch/ppc.H b/src/include/arch/ppc.H index 8402f743c..455728500 100644 --- a/src/include/arch/ppc.H +++ b/src/include/arch/ppc.H @@ -339,6 +339,29 @@ inline void nap() { // @todo-RTC:130186 Add new stop command support //asm volatile("nap"); + + // Nap should be equivalent to 'stop 1' (no state loss) + // 855 reg for HYPV, 823 reg otherwise + // using EC(bit43) as 1 here (system reset or LPCR event) + // PHYP uses bit 42 as 1 also +// register uint64_t psscr = 0x0000000000310001; +// asm volatile("mtspr 823, %0; isync" :: "r" (psscr)); +// asm volatile(".long 0x4C0002E4"); // When GCC supports 'stop', use it +} + +ALWAYS_INLINE +inline void setPSSCR(uint64_t _psscr) +{ + register uint64_t psscr = _psscr; + asm volatile("mtspr 855, %0; isync" :: "r" (psscr)); +} + +ALWAYS_INLINE +inline uint64_t getPSSCR() +{ + register uint64_t psscr = 0; + asm volatile("mfspr %0, 855" : "=r" (psscr)); + return psscr; } ALWAYS_INLINE @@ -426,6 +449,10 @@ enum // some state from the core doing the // wakeup to apply into the woken one. + MAGIC_SIMICS_FUSEDCOREWAKE = 11, // Indicate to the PHYP model of simics + // that we are waking up and expecting + // CORES to become fused. + MAGIC_SHUTDOWN = 7006, // KernelMisc::shutdown() called. MAGIC_BREAK = 7007, // hard-code a breakpoint MAGIC_RANDOM = 7008, // generate random number @@ -433,6 +460,13 @@ enum MAGIC_FAKEPAYLOAD_ENTER = 7010, // Entered the fake payload. MAGIC_SIMICS_CHECK = 7011, // Check if system is running on simics MAGIC_LOAD_PAYLOAD = 7012, // load payload from flash + + // These are used for getting threads + // going after doing 'stop/winkle' + MAGIC_WAKE_MASTER_THREAD = 7015, // Wake master thread + MAGIC_WAKE_OTHER_THREADS = 7016, // Wake other threads on initial CORE + MAGIC_WAKE_FUSED_THREADS = 7017, // Wake up fused core threads + MAGIC_CONTINUOUS_TRACE = 7055, // extract mixed trace buffer }; |
