mirrors/qemu
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

target/ppc: move power-saving interrupt masking out of cpu_has_work_POWER8

Browse Source 
Move the interrupt masking logic out of cpu_has_work_POWER8 in a new
method, p8_interrupt_powersave, that only returns an interrupt if it can
wake the processor from power-saving mode.

Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br>
Reviewed-by: Fabiano Rosas <farosas@linux.ibm.com>
Message-Id: <20221011204829.1641124-18-matheus.ferst@eldorado.org.br>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
This commit is contained in:
Matheus Ferst 2022-10-11 17:48:17 -03:00 committed by Daniel Henrique Barboza
parent d66b441d64
commit 788ff1ce44
1 changed files with 33 additions and 28 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

61
target/ppc/cpu_init.c
View File

@ -6133,6 +6133,38 @@ static bool ppc_pvr_match_power8(PowerPCCPUClass *pcc, uint32_t pvr, bool best)
return true;
}
static int p8_interrupt_powersave(CPUPPCState *env)
{
if ((env->pending_interrupts & PPC_INTERRUPT_EXT) &&
(env->spr[SPR_LPCR] & LPCR_P8_PECE2)) {
return PPC_INTERRUPT_EXT;
}
if ((env->pending_interrupts & PPC_INTERRUPT_DECR) &&
(env->spr[SPR_LPCR] & LPCR_P8_PECE3)) {
return PPC_INTERRUPT_DECR;
}
if ((env->pending_interrupts & PPC_INTERRUPT_MCK) &&
(env->spr[SPR_LPCR] & LPCR_P8_PECE4)) {
return PPC_INTERRUPT_MCK;
}
if ((env->pending_interrupts & PPC_INTERRUPT_HMI) &&
(env->spr[SPR_LPCR] & LPCR_P8_PECE4)) {
return PPC_INTERRUPT_HMI;
}
if ((env->pending_interrupts & PPC_INTERRUPT_DOORBELL) &&
(env->spr[SPR_LPCR] & LPCR_P8_PECE0)) {
return PPC_INTERRUPT_DOORBELL;
}
if ((env->pending_interrupts & PPC_INTERRUPT_HDOORBELL) &&
(env->spr[SPR_LPCR] & LPCR_P8_PECE1)) {
return PPC_INTERRUPT_HDOORBELL;
}
if (env->pending_interrupts & PPC_INTERRUPT_RESET) {
return PPC_INTERRUPT_RESET;
}
return 0;
}
static bool cpu_has_work_POWER8(CPUState *cs)
{
PowerPCCPU *cpu = POWERPC_CPU(cs);
@ -6142,34 +6174,7 @@ static bool cpu_has_work_POWER8(CPUState *cs)
if (!(cs->interrupt_request & CPU_INTERRUPT_HARD)) {
return false;
}
if ((env->pending_interrupts & PPC_INTERRUPT_EXT) &&
(env->spr[SPR_LPCR] & LPCR_P8_PECE2)) {
return true;
}
if ((env->pending_interrupts & PPC_INTERRUPT_DECR) &&
(env->spr[SPR_LPCR] & LPCR_P8_PECE3)) {
return true;
}
if ((env->pending_interrupts & PPC_INTERRUPT_MCK) &&
(env->spr[SPR_LPCR] & LPCR_P8_PECE4)) {
return true;
}
if ((env->pending_interrupts & PPC_INTERRUPT_HMI) &&
(env->spr[SPR_LPCR] & LPCR_P8_PECE4)) {
return true;
}
if ((env->pending_interrupts & PPC_INTERRUPT_DOORBELL) &&
(env->spr[SPR_LPCR] & LPCR_P8_PECE0)) {
return true;
}
if ((env->pending_interrupts & PPC_INTERRUPT_HDOORBELL) &&
(env->spr[SPR_LPCR] & LPCR_P8_PECE1)) {
return true;
}
if (env->pending_interrupts & PPC_INTERRUPT_RESET) {
return true;
}
return false;
return p8_interrupt_powersave(env) != 0;
} else {
return FIELD_EX64(env->msr, MSR, EE) &&
(cs->interrupt_request & CPU_INTERRUPT_HARD);