[RFC PATCH v2 15/29] target/ppc: remove unused interrupts from p8_deliver_interrupt

[Matheus Ferst <matheus.ferst@eldorado.org.br>]

Remove the following unused interrupts from the POWER8 interrupt
processing method:
- PPC_INTERRUPT_RESET: only raised for 6xx, 7xx, 970, and POWER5p;
- Debug Interrupt: removed in Power ISA v2.07;
- Hypervisor Virtualization: introduced in Power ISA v3.0;
- Critical Input, Watchdog Timer, and Fixed Interval Timer: only defined
  for embedded CPUs;
- Hypervisor Doorbell, Doorbell, and Critical Doorbell: processor does
  not implement the "Embedded.Processor Control" category;
- Programmable Interval Timer: 40x-only;
- PPC_INTERRUPT_THERM: only raised for 970 and POWER5p;

Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br>
---
 target/ppc/excp_helper.c | 48 ----------------------------------------
 1 file changed, 48 deletions(-)

diff --git a/target/ppc/excp_helper.c b/target/ppc/excp_helper.c
index 0405fc8eee..4cbf6b29fc 100644
--- a/target/ppc/excp_helper.c
+++ b/target/ppc/excp_helper.c
@@ -1979,29 +1979,16 @@ static void p8_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 */
         env->pending_interrupts &= ~PPC_INTERRUPT_HDECR;
         powerpc_excp(cpu, POWERPC_EXCP_HDECR);
         break;
-    case PPC_INTERRUPT_HVIRT: /* Hypervisor virtualization interrupt */
-        powerpc_excp(cpu, POWERPC_EXCP_HVIRT);
-        break;
 
     case PPC_INTERRUPT_EXT:
         if (books_vhyp_promotes_external_to_hvirt(cpu)) {
@@ -2010,52 +1997,17 @@ static void p8_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;
         }
         powerpc_excp(cpu, POWERPC_EXCP_DECR);
         break;
-    case PPC_INTERRUPT_DOORBELL:
-        env->pending_interrupts &= ~PPC_INTERRUPT_DOORBELL;
-        if (is_book3s_arch2x(env)) {
-            powerpc_excp(cpu, POWERPC_EXCP_SDOOR);
-        } else {
-            powerpc_excp(cpu, POWERPC_EXCP_DOORI);
-        }
-        break;
-    case PPC_INTERRUPT_HDOORBELL:
-        env->pending_interrupts &= ~PPC_INTERRUPT_HDOORBELL;
-        powerpc_excp(cpu, POWERPC_EXCP_SDOOR_HV);
-        break;
     case PPC_INTERRUPT_PERFM:
         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