OpenE2K
/
qemu-e2k
13
4
Fork 0
Code Issues 4 Pull Requests Projects 2 Releases Activity

target/ppc: remove unused interrupts from p8_deliver_interrupt 

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;
- 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>
Reviewed-by: Fabiano Rosas <farosas@linux.ibm.com>
Message-Id: <20221011204829.1641124-16-matheus.ferst@eldorado.org.br>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
This commit is contained in:
Matheus Ferst 2022-10-11 17:48:15 -03:00 committed by Daniel Henrique Barboza
parent 6527e757db
commit 567372673e
1 changed files with 0 additions and 30 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

30
target/ppc/excp_helper.c
View File

@ -1990,10 +1990,6 @@ 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);
@ -2004,9 +2000,6 @@ static void p8_deliver_interrupt(CPUPPCState *env, int interrupt)
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)) {
@ -2015,26 +2008,7 @@ 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 ppc */
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;
@ -2057,10 +2031,6 @@ static void p8_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) {