[RFC PATCH v2 08/29] target/ppc: remove unused interrupts from p9_deliver_interrupt

[Matheus Ferst]

Remove the following unused interrupts from the POWER9 interrupt
processing method:
- PPC_INTERRUPT_RESET: only raised for 6xx, 7xx, 970 and POWER5p;
- Debug Interrupt: removed in Power ISA v2.07;
- Critical Input, Watchdog Timer, and Fixed Interval Timer: only defined
  for embedded CPUs;
- Critical Doorbell Interrupt: removed in Power ISA v3.0;
- Programmable Interval Timer: 40x-only.

Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br>
---
 target/ppc/excp_helper.c | 33 ---------------------------------
 1 file changed, 33 deletions(-)

diff --git a/target/ppc/excp_helper.c b/target/ppc/excp_helper.c
index 8a32acbc7f..603c956588 100644
--- a/target/ppc/excp_helper.c
+++ b/target/ppc/excp_helper.c
@@ -1896,20 +1896,10 @@ static void p9_deliver_interrupt(CPUPPCState *env, int 
interrupt)
     CPUState *cs = env_cpu(env);
 
     switch (interrupt) {
-    case PPC_INTERRUPT_RESET: /* External reset */
-        env->pending_interrupts &= ~PPC_INTERRUPT_RESET;
-        powerpc_excp(cpu, POWERPC_EXCP_RESET);
-        break;
     case PPC_INTERRUPT_MCK: /* Machine check exception */
         env->pending_interrupts &= ~PPC_INTERRUPT_MCK;
         powerpc_excp(cpu, POWERPC_EXCP_MCHECK);
         break;
-#if 0 /* TODO */
-    case PPC_INTERRUPT_DEBUG: /* External debug exception */
-        env->pending_interrupts &= ~PPC_INTERRUPT_DEBUG;
-        powerpc_excp(cpu, POWERPC_EXCP_DEBUG);
-        break;
-#endif
 
     case PPC_INTERRUPT_HDECR: /* Hypervisor decrementer exception */
         /* HDEC clears on delivery */
@@ -1927,26 +1917,7 @@ static void p9_deliver_interrupt(CPUPPCState *env, int 
interrupt)
             powerpc_excp(cpu, POWERPC_EXCP_EXTERNAL);
         }
         break;
-    case PPC_INTERRUPT_CEXT: /* External critical interrupt */
-        powerpc_excp(cpu, POWERPC_EXCP_CRITICAL);
-        break;
 
-    case PPC_INTERRUPT_WDT: /* Watchdog timer on embedded PowerPC */
-        env->pending_interrupts &= ~PPC_INTERRUPT_WDT;
-        powerpc_excp(cpu, POWERPC_EXCP_WDT);
-        break;
-    case PPC_INTERRUPT_CDOORBELL:
-        env->pending_interrupts &= ~PPC_INTERRUPT_CDOORBELL;
-        powerpc_excp(cpu, POWERPC_EXCP_DOORCI);
-        break;
-    case PPC_INTERRUPT_FIT: /* Fixed interval timer on embedded PowerPC */
-        env->pending_interrupts &= ~PPC_INTERRUPT_FIT;
-        powerpc_excp(cpu, POWERPC_EXCP_FIT);
-        break;
-    case PPC_INTERRUPT_PIT: /* Programmable interval timer on embedded PowerPC 
*/
-        env->pending_interrupts &= ~PPC_INTERRUPT_PIT;
-        powerpc_excp(cpu, POWERPC_EXCP_PIT);
-        break;
     case PPC_INTERRUPT_DECR: /* Decrementer exception */
         if (ppc_decr_clear_on_delivery(env)) {
             env->pending_interrupts &= ~PPC_INTERRUPT_DECR;
@@ -1969,10 +1940,6 @@ static void p9_deliver_interrupt(CPUPPCState *env, int 
interrupt)
         env->pending_interrupts &= ~PPC_INTERRUPT_PERFM;
         powerpc_excp(cpu, POWERPC_EXCP_PERFM);
         break;
-    case PPC_INTERRUPT_THERM:  /* Thermal interrupt */
-        env->pending_interrupts &= ~PPC_INTERRUPT_THERM;
-        powerpc_excp(cpu, POWERPC_EXCP_THERM);
-        break;
     case PPC_INTERRUPT_EBB: /* EBB exception */
         env->pending_interrupts &= ~PPC_INTERRUPT_EBB;
         if (env->spr[SPR_BESCR] & BESCR_PMEO) {
-- 
2.25.1