diff mbox series

[v3,17/29] target/ppc: move power-saving interrupt masking out of cpu_has_work_POWER8

Message ID 20221011204829.1641124-18-matheus.ferst@eldorado.org.br
State Awaiting Upstream
Headers show
Series PowerPC interrupt rework | expand

Commit Message

Matheus K. Ferst Oct. 11, 2022, 8:48 p.m. UTC 
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>
---
 target/ppc/cpu_init.c | 61 +++++++++++++++++++++++--------------------
 1 file changed, 33 insertions(+), 28 deletions(-)

Comments

Fabiano Rosas Oct. 14, 2022, 2:48 p.m. UTC | #1 
Matheus Ferst <matheus.ferst@eldorado.org.br> writes:

> 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>
diff mbox series

Patch

diff --git a/target/ppc/cpu_init.c b/target/ppc/cpu_init.c
index efdcf63282..3772f82e51 100644
--- a/target/ppc/cpu_init.c
+++ b/target/ppc/cpu_init.c
@@ -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);