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ppc/xics: Implement H_IPOLL using an accessor

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None of the other presenter functions directly mucks with the
internal state, so don't do it there either.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
Benjamin Herrenschmidt 2016-06-29 00:35:14 +05:30 committed by David Gibson
parent 9c7027ba94
commit 1cbd222055
3 changed files with 13 additions and 3 deletions
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8
hw/intc/xics.c
View File

@ -288,6 +288,14 @@ uint32_t icp_accept(ICPState *ss)
return xirr;
}
uint32_t icp_ipoll(ICPState *ss, uint32_t *mfrr)
{
if (mfrr) {
*mfrr = ss->mfrr;
}
return ss->xirr;
}
void icp_eoi(XICSState *icp, int server, uint32_t xirr)
{
ICPState *ss = icp->ss + server;

7
hw/intc/xics_spapr.c
View File

@ -99,10 +99,11 @@ static target_ulong h_ipoll(PowerPCCPU *cpu, sPAPRMachineState *spapr,
target_ulong opcode, target_ulong *args)
{
CPUState *cs = CPU(cpu);
ICPState *ss = &spapr->icp->ss[cs->cpu_index];
uint32_t mfrr;
uint32_t xirr = icp_ipoll(spapr->icp->ss + cs->cpu_index, &mfrr);
args[0] = ss->xirr;
args[1] = ss->mfrr;
args[0] = xirr;
args[1] = mfrr;
return H_SUCCESS;
}

1
include/hw/ppc/xics.h
View File

@ -186,6 +186,7 @@ int xics_get_cpu_index_by_dt_id(int cpu_dt_id);
void icp_set_cppr(XICSState *icp, int server, uint8_t cppr);
void icp_set_mfrr(XICSState *icp, int server, uint8_t mfrr);
uint32_t icp_accept(ICPState *ss);
uint32_t icp_ipoll(ICPState *ss, uint32_t *mfrr);
void icp_eoi(XICSState *icp, int server, uint32_t xirr);
void ics_write_xive(ICSState *ics, int nr, int server,