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authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2016-06-29 00:35:14 +0530
committerDavid Gibson <david@gibson.dropbear.id.au>2016-07-01 13:41:47 +1000
commit1cbd22205594c4cf024c50cb437755c64f385da1 (patch)
tree6789479942e0909dfce26ef4a70e974cdd87f5c8
parent9c7027ba947d95dedaa760758cc378c8496e0316 (diff)
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ppc/xics: Implement H_IPOLL using an accessor
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>
-rw-r--r--hw/intc/xics.c8
-rw-r--r--hw/intc/xics_spapr.c7
-rw-r--r--include/hw/ppc/xics.h1
3 files changed, 13 insertions, 3 deletions
diff --git a/hw/intc/xics.c b/hw/intc/xics.c
index f01af08..f43f98a 100644
--- a/hw/intc/xics.c
+++ b/hw/intc/xics.c
@@ -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;
diff --git a/hw/intc/xics_spapr.c b/hw/intc/xics_spapr.c
index 89190ef..94571dd 100644
--- a/hw/intc/xics_spapr.c
+++ b/hw/intc/xics_spapr.c
@@ -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;
}
diff --git a/include/hw/ppc/xics.h b/include/hw/ppc/xics.h
index 3349006..7445a14 100644
--- a/include/hw/ppc/xics.h
+++ b/include/hw/ppc/xics.h
@@ -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,