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[Qemu-devel] [PATCH v4 3/9] ppc/xics: Make the ICSState a list
|
From: |
Nikunj A Dadhania |
|
Subject: |
[Qemu-devel] [PATCH v4 3/9] ppc/xics: Make the ICSState a list |
|
Date: |
Mon, 19 Sep 2016 11:59:31 +0530 |
From: Benjamin Herrenschmidt <address@hidden>
Instead of an array of fixed sized blocks, use a list, as we will need
to have sources with variable number of interrupts. SPAPR only uses
a single entry. Native will create more. If performance becomes an
issue we can add some hashed lookup but for now this will do fine.
Signed-off-by: Benjamin Herrenschmidt <address@hidden>
[ move the initialization of list to xics_common_initfn,
restore xirr_owner after migration and move restoring to
icp_post_load]
Signed-off-by: Nikunj A Dadhania <address@hidden>
---
hw/intc/trace-events | 5 +-
hw/intc/xics.c | 130 ++++++++++++++++++++++++++++++++------------------
hw/intc/xics_kvm.c | 27 +++++++----
hw/intc/xics_spapr.c | 88 ++++++++++++++++++++++------------
hw/ppc/spapr_events.c | 2 +-
hw/ppc/spapr_pci.c | 5 +-
hw/ppc/spapr_vio.c | 2 +-
include/hw/ppc/xics.h | 13 ++---
8 files changed, 173 insertions(+), 99 deletions(-)
diff --git a/hw/intc/trace-events b/hw/intc/trace-events
index f12192c..aa342a8 100644
--- a/hw/intc/trace-events
+++ b/hw/intc/trace-events
@@ -56,10 +56,11 @@ xics_set_irq_lsi(int srcno, int nr) "set_irq_lsi: srcno %d
[irq %#x]"
xics_ics_write_xive(int nr, int srcno, int server, uint8_t priority)
"ics_write_xive: irq %#x [src %d] server %#x prio %#x"
xics_ics_reject(int nr, int srcno) "reject irq %#x [src %d]"
xics_ics_eoi(int nr) "ics_eoi: irq %#x"
-xics_alloc(int src, int irq) "source#%d, irq %d"
-xics_alloc_block(int src, int first, int num, bool lsi, int align) "source#%d,
first irq %d, %d irqs, lsi=%d, alignnum %d"
+xics_alloc(int irq) "irq %d"
+xics_alloc_block(int first, int num, bool lsi, int align) "first irq %d, %d
irqs, lsi=%d, alignnum %d"
xics_ics_free(int src, int irq, int num) "Source#%d, first irq %d, %d irqs"
xics_ics_free_warn(int src, int irq) "Source#%d, irq %d is already free"
+xics_icp_post_load(uint32_t server_no, uint32_t xirr, uint64_t addr, uint8_t
pend) "server_no %d, xirr %#x, xirr_owner 0x%" PRIx64 ", pending %d"
# hw/intc/s390_flic_kvm.c
flic_create_device(int err) "flic: create device failed %d"
diff --git a/hw/intc/xics.c b/hw/intc/xics.c
index f765b08..05e938f 100644
--- a/hw/intc/xics.c
+++ b/hw/intc/xics.c
@@ -32,6 +32,7 @@
#include "hw/hw.h"
#include "trace.h"
#include "qemu/timer.h"
+#include "hw/ppc/spapr.h"
#include "hw/ppc/xics.h"
#include "qemu/error-report.h"
#include "qapi/visitor.h"
@@ -96,13 +97,16 @@ void xics_cpu_setup(XICSState *xics, PowerPCCPU *cpu)
static void xics_common_reset(DeviceState *d)
{
XICSState *xics = XICS_COMMON(d);
+ ICSState *ics;
int i;
for (i = 0; i < xics->nr_servers; i++) {
device_reset(DEVICE(&xics->ss[i]));
}
- device_reset(DEVICE(xics->ics));
+ QLIST_FOREACH(ics, &xics->ics, list) {
+ device_reset(DEVICE(ics));
+ }
}
static void xics_prop_get_nr_irqs(Object *obj, Visitor *v, const char *name,
@@ -134,7 +138,6 @@ static void xics_prop_set_nr_irqs(Object *obj, Visitor *v,
const char *name,
}
assert(info->set_nr_irqs);
- assert(xics->ics);
info->set_nr_irqs(xics, value, errp);
}
@@ -174,6 +177,9 @@ static void xics_prop_set_nr_servers(Object *obj, Visitor
*v,
static void xics_common_initfn(Object *obj)
{
+ XICSState *xics = XICS_COMMON(obj);
+
+ QLIST_INIT(&xics->ics);
object_property_add(obj, "nr_irqs", "int",
xics_prop_get_nr_irqs, xics_prop_set_nr_irqs,
NULL, NULL, NULL);
@@ -212,33 +218,35 @@ static void ics_reject(ICSState *ics, int nr);
static void ics_resend(ICSState *ics, int server);
static void ics_eoi(ICSState *ics, int nr);
-static void icp_check_ipi(XICSState *xics, int server)
+static void icp_check_ipi(ICPState *ss)
{
- ICPState *ss = xics->ss + server;
-
if (XISR(ss) && (ss->pending_priority <= ss->mfrr)) {
return;
}
- trace_xics_icp_check_ipi(server, ss->mfrr);
+ trace_xics_icp_check_ipi(ss->cs->cpu_index, ss->mfrr);
- if (XISR(ss)) {
- ics_reject(xics->ics, XISR(ss));
+ if (XISR(ss) && ss->xirr_owner) {
+ ics_reject(ss->xirr_owner, XISR(ss));
}
ss->xirr = (ss->xirr & ~XISR_MASK) | XICS_IPI;
ss->pending_priority = ss->mfrr;
+ ss->xirr_owner = NULL;
qemu_irq_raise(ss->output);
}
static void icp_resend(XICSState *xics, int server)
{
ICPState *ss = xics->ss + server;
+ ICSState *ics;
if (ss->mfrr < CPPR(ss)) {
- icp_check_ipi(xics, server);
+ icp_check_ipi(ss);
+ }
+ QLIST_FOREACH(ics, &xics->ics, list) {
+ ics_resend(ics, server);
}
- ics_resend(xics->ics, server);
}
void icp_set_cppr(XICSState *xics, int server, uint8_t cppr)
@@ -256,7 +264,10 @@ void icp_set_cppr(XICSState *xics, int server, uint8_t
cppr)
ss->xirr &= ~XISR_MASK; /* Clear XISR */
ss->pending_priority = 0xff;
qemu_irq_lower(ss->output);
- ics_reject(xics->ics, old_xisr);
+ if (ss->xirr_owner) {
+ ics_reject(ss->xirr_owner, old_xisr);
+ ss->xirr_owner = NULL;
+ }
}
} else {
if (!XISR(ss)) {
@@ -271,7 +282,7 @@ void icp_set_mfrr(XICSState *xics, int server, uint8_t mfrr)
ss->mfrr = mfrr;
if (mfrr < CPPR(ss)) {
- icp_check_ipi(xics, server);
+ icp_check_ipi(ss);
}
}
@@ -282,6 +293,7 @@ uint32_t icp_accept(ICPState *ss)
qemu_irq_lower(ss->output);
ss->xirr = ss->pending_priority << 24;
ss->pending_priority = 0xff;
+ ss->xirr_owner = NULL;
trace_xics_icp_accept(xirr, ss->xirr);
@@ -299,30 +311,40 @@ uint32_t icp_ipoll(ICPState *ss, uint32_t *mfrr)
void icp_eoi(XICSState *xics, int server, uint32_t xirr)
{
ICPState *ss = xics->ss + server;
+ ICSState *ics;
+ uint32_t irq;
/* Send EOI -> ICS */
ss->xirr = (ss->xirr & ~CPPR_MASK) | (xirr & CPPR_MASK);
trace_xics_icp_eoi(server, xirr, ss->xirr);
- ics_eoi(xics->ics, xirr & XISR_MASK);
+ irq = xirr & XISR_MASK;
+ QLIST_FOREACH(ics, &xics->ics, list) {
+ if (ics_valid_irq(ics, irq)) {
+ ics_eoi(ics, irq);
+ }
+ }
if (!XISR(ss)) {
icp_resend(xics, server);
}
}
-static void icp_irq(XICSState *xics, int server, int nr, uint8_t priority)
+static void icp_irq(ICSState *ics, int server, int nr, uint8_t priority)
{
+ XICSState *xics = ics->xics;
ICPState *ss = xics->ss + server;
trace_xics_icp_irq(server, nr, priority);
if ((priority >= CPPR(ss))
|| (XISR(ss) && (ss->pending_priority <= priority))) {
- ics_reject(xics->ics, nr);
+ ics_reject(ics, nr);
} else {
- if (XISR(ss)) {
- ics_reject(xics->ics, XISR(ss));
+ if (XISR(ss) && ss->xirr_owner) {
+ ics_reject(ss->xirr_owner, XISR(ss));
+ ss->xirr_owner = NULL;
}
ss->xirr = (ss->xirr & ~XISR_MASK) | (nr & XISR_MASK);
+ ss->xirr_owner = ics;
ss->pending_priority = priority;
trace_xics_icp_raise(ss->xirr, ss->pending_priority);
qemu_irq_raise(ss->output);
@@ -378,12 +400,45 @@ static void icp_reset(DeviceState *dev)
qemu_set_irq(icp->output, 0);
}
+static int icp_post_load(ICPState *ss, int version_id)
+{
+ sPAPRMachineState *spapr = SPAPR_MACHINE(qdev_get_machine());
+ XICSState *xics = spapr->xics;
+ uint32_t irq, i;
+ static uint32_t server_no;
+
+ server_no++;
+ irq = XISR(ss);
+ if (!ss->cs || !irq) {
+ goto icpend;
+ }
+
+ /* Restore the xirr_owner */
+ ss->xirr_owner = xics_find_source(xics, irq);
+
+ icpend:
+ trace_xics_icp_post_load(server_no, ss->xirr, (uint64_t)ss->xirr_owner,
+ ss->pending_priority);
+ if (xics->nr_servers != server_no) {
+ return 0;
+ }
+
+ /* All the ICPs are processed, now restore all the state */
+ for (i = 0; i < xics->nr_servers; i++) {
+ icp_resend(xics, i);
+ }
+ server_no = 0;
+ return 0;
+}
+
static void icp_class_init(ObjectClass *klass, void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
+ ICPStateClass *icpc = ICP_CLASS(klass);
dc->reset = icp_reset;
dc->vmsd = &vmstate_icp_server;
+ icpc->post_load = icp_post_load;
}
static const TypeInfo icp_info = {
@@ -405,8 +460,7 @@ static void resend_msi(ICSState *ics, int srcno)
if (irq->status & XICS_STATUS_REJECTED) {
irq->status &= ~XICS_STATUS_REJECTED;
if (irq->priority != 0xff) {
- icp_irq(ics->xics, irq->server, srcno + ics->offset,
- irq->priority);
+ icp_irq(ics, irq->server, srcno + ics->offset, irq->priority);
}
}
}
@@ -419,7 +473,7 @@ static void resend_lsi(ICSState *ics, int srcno)
&& (irq->status & XICS_STATUS_ASSERTED)
&& !(irq->status & XICS_STATUS_SENT)) {
irq->status |= XICS_STATUS_SENT;
- icp_irq(ics->xics, irq->server, srcno + ics->offset, irq->priority);
+ icp_irq(ics, irq->server, srcno + ics->offset, irq->priority);
}
}
@@ -434,7 +488,7 @@ static void set_irq_msi(ICSState *ics, int srcno, int val)
irq->status |= XICS_STATUS_MASKED_PENDING;
trace_xics_masked_pending();
} else {
- icp_irq(ics->xics, irq->server, srcno + ics->offset,
irq->priority);
+ icp_irq(ics, irq->server, srcno + ics->offset, irq->priority);
}
}
}
@@ -473,7 +527,7 @@ static void write_xive_msi(ICSState *ics, int srcno)
}
irq->status &= ~XICS_STATUS_MASKED_PENDING;
- icp_irq(ics->xics, irq->server, srcno + ics->offset, irq->priority);
+ icp_irq(ics, irq->server, srcno + ics->offset, irq->priority);
}
static void write_xive_lsi(ICSState *ics, int srcno)
@@ -568,17 +622,6 @@ static void ics_reset(DeviceState *dev)
}
}
-static int ics_post_load(ICSState *ics, int version_id)
-{
- int i;
-
- for (i = 0; i < ics->xics->nr_servers; i++) {
- icp_resend(ics->xics, i);
- }
-
- return 0;
-}
-
static void ics_dispatch_pre_save(void *opaque)
{
ICSState *ics = opaque;
@@ -653,12 +696,10 @@ static void ics_realize(DeviceState *dev, Error **errp)
static void ics_class_init(ObjectClass *klass, void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
- ICSStateClass *isc = ICS_CLASS(klass);
dc->realize = ics_realize;
dc->vmsd = &vmstate_ics;
dc->reset = ics_reset;
- isc->post_load = ics_post_load;
}
static const TypeInfo ics_info = {
@@ -673,28 +714,23 @@ static const TypeInfo ics_info = {
/*
* Exported functions
*/
-int xics_find_source(XICSState *xics, int irq)
+ICSState *xics_find_source(XICSState *xics, int irq)
{
- int sources = 1;
- int src;
+ ICSState *ics;
- /* FIXME: implement multiple sources */
- for (src = 0; src < sources; ++src) {
- ICSState *ics = &xics->ics[src];
+ QLIST_FOREACH(ics, &xics->ics, list) {
if (ics_valid_irq(ics, irq)) {
- return src;
+ return ics;
}
}
-
- return -1;
+ return NULL;
}
qemu_irq xics_get_qirq(XICSState *xics, int irq)
{
- int src = xics_find_source(xics, irq);
+ ICSState *ics = xics_find_source(xics, irq);
- if (src >= 0) {
- ICSState *ics = &xics->ics[src];
+ if (ics) {
return ics->qirqs[irq - ics->offset];
}
diff --git a/hw/intc/xics_kvm.c b/hw/intc/xics_kvm.c
index edbd62f..04fa7cb 100644
--- a/hw/intc/xics_kvm.c
+++ b/hw/intc/xics_kvm.c
@@ -365,7 +365,13 @@ static void xics_kvm_cpu_setup(XICSState *xics, PowerPCCPU
*cpu)
static void xics_kvm_set_nr_irqs(XICSState *xics, uint32_t nr_irqs,
Error **errp)
{
- xics->nr_irqs = xics->ics->nr_irqs = nr_irqs;
+ ICSState *ics = QLIST_FIRST(&xics->ics);
+
+ /* This needs to be deprecated ... */
+ xics->nr_irqs = nr_irqs;
+ if (ics) {
+ ics->nr_irqs = nr_irqs;
+ }
}
static void xics_kvm_set_nr_servers(XICSState *xics, uint32_t nr_servers,
@@ -398,6 +404,7 @@ static void xics_kvm_realize(DeviceState *dev, Error **errp)
{
KVMXICSState *xicskvm = XICS_SPAPR_KVM(dev);
XICSState *xics = XICS_COMMON(dev);
+ ICSState *ics;
int i, rc;
Error *error = NULL;
struct kvm_create_device xics_create_device = {
@@ -449,10 +456,12 @@ static void xics_kvm_realize(DeviceState *dev, Error
**errp)
xicskvm->kernel_xics_fd = xics_create_device.fd;
- object_property_set_bool(OBJECT(xics->ics), true, "realized", &error);
- if (error) {
- error_propagate(errp, error);
- goto fail;
+ QLIST_FOREACH(ics, &xics->ics, list) {
+ object_property_set_bool(OBJECT(ics), true, "realized", &error);
+ if (error) {
+ error_propagate(errp, error);
+ goto fail;
+ }
}
assert(xics->nr_servers);
@@ -481,10 +490,12 @@ fail:
static void xics_kvm_initfn(Object *obj)
{
XICSState *xics = XICS_COMMON(obj);
+ ICSState *ics;
- xics->ics = ICS(object_new(TYPE_KVM_ICS));
- object_property_add_child(obj, "ics", OBJECT(xics->ics), NULL);
- xics->ics->xics = xics;
+ ics = ICS(object_new(TYPE_KVM_ICS));
+ object_property_add_child(obj, "ics", OBJECT(ics), NULL);
+ ics->xics = xics;
+ QLIST_INSERT_HEAD(&xics->ics, ics, list);
}
static void xics_kvm_class_init(ObjectClass *oc, void *data)
diff --git a/hw/intc/xics_spapr.c b/hw/intc/xics_spapr.c
index 618826d..0b0845d 100644
--- a/hw/intc/xics_spapr.c
+++ b/hw/intc/xics_spapr.c
@@ -113,13 +113,17 @@ static void rtas_set_xive(PowerPCCPU *cpu,
sPAPRMachineState *spapr,
uint32_t nargs, target_ulong args,
uint32_t nret, target_ulong rets)
{
- ICSState *ics = spapr->xics->ics;
+ ICSState *ics = QLIST_FIRST(&spapr->xics->ics);
uint32_t nr, server, priority;
if ((nargs != 3) || (nret != 1)) {
rtas_st(rets, 0, RTAS_OUT_PARAM_ERROR);
return;
}
+ if (!ics) {
+ rtas_st(rets, 0, RTAS_OUT_HW_ERROR);
+ return;
+ }
nr = rtas_ld(args, 0);
server = xics_get_cpu_index_by_dt_id(rtas_ld(args, 1));
@@ -141,13 +145,17 @@ static void rtas_get_xive(PowerPCCPU *cpu,
sPAPRMachineState *spapr,
uint32_t nargs, target_ulong args,
uint32_t nret, target_ulong rets)
{
- ICSState *ics = spapr->xics->ics;
+ ICSState *ics = QLIST_FIRST(&spapr->xics->ics);
uint32_t nr;
if ((nargs != 1) || (nret != 3)) {
rtas_st(rets, 0, RTAS_OUT_PARAM_ERROR);
return;
}
+ if (!ics) {
+ rtas_st(rets, 0, RTAS_OUT_HW_ERROR);
+ return;
+ }
nr = rtas_ld(args, 0);
@@ -166,13 +174,17 @@ static void rtas_int_off(PowerPCCPU *cpu,
sPAPRMachineState *spapr,
uint32_t nargs, target_ulong args,
uint32_t nret, target_ulong rets)
{
- ICSState *ics = spapr->xics->ics;
+ ICSState *ics = QLIST_FIRST(&spapr->xics->ics);
uint32_t nr;
if ((nargs != 1) || (nret != 1)) {
rtas_st(rets, 0, RTAS_OUT_PARAM_ERROR);
return;
}
+ if (!ics) {
+ rtas_st(rets, 0, RTAS_OUT_HW_ERROR);
+ return;
+ }
nr = rtas_ld(args, 0);
@@ -192,13 +204,17 @@ static void rtas_int_on(PowerPCCPU *cpu,
sPAPRMachineState *spapr,
uint32_t nargs, target_ulong args,
uint32_t nret, target_ulong rets)
{
- ICSState *ics = spapr->xics->ics;
+ ICSState *ics = QLIST_FIRST(&spapr->xics->ics);
uint32_t nr;
if ((nargs != 1) || (nret != 1)) {
rtas_st(rets, 0, RTAS_OUT_PARAM_ERROR);
return;
}
+ if (!ics) {
+ rtas_st(rets, 0, RTAS_OUT_HW_ERROR);
+ return;
+ }
nr = rtas_ld(args, 0);
@@ -217,7 +233,13 @@ static void rtas_int_on(PowerPCCPU *cpu, sPAPRMachineState
*spapr,
static void xics_spapr_set_nr_irqs(XICSState *xics, uint32_t nr_irqs,
Error **errp)
{
- xics->nr_irqs = xics->ics->nr_irqs = nr_irqs;
+ ICSState *ics = QLIST_FIRST(&xics->ics);
+
+ /* This needs to be deprecated ... */
+ xics->nr_irqs = nr_irqs;
+ if (ics) {
+ ics->nr_irqs = nr_irqs;
+ }
}
static void xics_spapr_set_nr_servers(XICSState *xics, uint32_t nr_servers,
@@ -240,6 +262,7 @@ static void xics_spapr_set_nr_servers(XICSState *xics,
uint32_t nr_servers,
static void xics_spapr_realize(DeviceState *dev, Error **errp)
{
XICSState *xics = XICS_SPAPR(dev);
+ ICSState *ics;
Error *error = NULL;
int i;
@@ -261,10 +284,12 @@ static void xics_spapr_realize(DeviceState *dev, Error
**errp)
spapr_register_hypercall(H_EOI, h_eoi);
spapr_register_hypercall(H_IPOLL, h_ipoll);
- object_property_set_bool(OBJECT(xics->ics), true, "realized", &error);
- if (error) {
- error_propagate(errp, error);
- return;
+ QLIST_FOREACH(ics, &xics->ics, list) {
+ object_property_set_bool(OBJECT(ics), true, "realized", &error);
+ if (error) {
+ error_propagate(errp, error);
+ return;
+ }
}
for (i = 0; i < xics->nr_servers; i++) {
@@ -280,10 +305,12 @@ static void xics_spapr_realize(DeviceState *dev, Error
**errp)
static void xics_spapr_initfn(Object *obj)
{
XICSState *xics = XICS_SPAPR(obj);
+ ICSState *ics;
- xics->ics = ICS(object_new(TYPE_ICS));
- object_property_add_child(obj, "ics", OBJECT(xics->ics), NULL);
- xics->ics->xics = xics;
+ ics = ICS(object_new(TYPE_ICS));
+ object_property_add_child(obj, "ics", OBJECT(ics), NULL);
+ ics->xics = xics;
+ QLIST_INSERT_HEAD(&xics->ics, ics, list);
}
static void xics_spapr_class_init(ObjectClass *oc, void *data)
@@ -329,14 +356,15 @@ static int ics_find_free_block(ICSState *ics, int num,
int alignnum)
return -1;
}
-int xics_spapr_alloc(XICSState *xics, int src, int irq_hint, bool lsi,
- Error **errp)
+int xics_spapr_alloc(XICSState *xics, int irq_hint, bool lsi, Error **errp)
{
- ICSState *ics = &xics->ics[src];
+ ICSState *ics = QLIST_FIRST(&xics->ics);
int irq;
+ if (!ics) {
+ return -1;
+ }
if (irq_hint) {
- assert(src == xics_find_source(xics, irq_hint));
if (!ICS_IRQ_FREE(ics, irq_hint - ics->offset)) {
error_setg(errp, "can't allocate IRQ %d: already in use",
irq_hint);
return -1;
@@ -352,7 +380,7 @@ int xics_spapr_alloc(XICSState *xics, int src, int
irq_hint, bool lsi,
}
ics_set_irq_type(ics, irq - ics->offset, lsi);
- trace_xics_alloc(src, irq);
+ trace_xics_alloc(irq);
return irq;
}
@@ -361,13 +389,16 @@ int xics_spapr_alloc(XICSState *xics, int src, int
irq_hint, bool lsi,
* Allocate block of consecutive IRQs, and return the number of the first IRQ
in
* the block. If align==true, aligns the first IRQ number to num.
*/
-int xics_spapr_alloc_block(XICSState *xics, int src, int num, bool lsi,
- bool align, Error **errp)
+int xics_spapr_alloc_block(XICSState *xics, int num, bool lsi, bool align,
+ Error **errp)
{
+ ICSState *ics = QLIST_FIRST(&xics->ics);
int i, first = -1;
- ICSState *ics = &xics->ics[src];
- assert(src == 0);
+ if (!ics) {
+ return -1;
+ }
+
/*
* MSIMesage::data is used for storing VIRQ so
* it has to be aligned to num to support multiple
@@ -394,7 +425,7 @@ int xics_spapr_alloc_block(XICSState *xics, int src, int
num, bool lsi,
}
first += ics->offset;
- trace_xics_alloc_block(src, first, num, lsi, align);
+ trace_xics_alloc_block(first, num, lsi, align);
return first;
}
@@ -405,7 +436,7 @@ static void ics_free(ICSState *ics, int srcno, int num)
for (i = srcno; i < srcno + num; ++i) {
if (ICS_IRQ_FREE(ics, i)) {
- trace_xics_ics_free_warn(ics - ics->xics->ics, i + ics->offset);
+ trace_xics_ics_free_warn(0, i + ics->offset);
}
memset(&ics->irqs[i], 0, sizeof(ICSIRQState));
}
@@ -413,15 +444,10 @@ static void ics_free(ICSState *ics, int srcno, int num)
void xics_spapr_free(XICSState *xics, int irq, int num)
{
- int src = xics_find_source(xics, irq);
-
- if (src >= 0) {
- ICSState *ics = &xics->ics[src];
-
- /* FIXME: implement multiple sources */
- assert(src == 0);
+ ICSState *ics = xics_find_source(xics, irq);
- trace_xics_ics_free(ics - xics->ics, irq, num);
+ if (ics) {
+ trace_xics_ics_free(0, irq, num);
ics_free(ics, irq - ics->offset, num);
}
}
diff --git a/hw/ppc/spapr_events.c b/hw/ppc/spapr_events.c
index b0668b3..adf8da4 100644
--- a/hw/ppc/spapr_events.c
+++ b/hw/ppc/spapr_events.c
@@ -603,7 +603,7 @@ out_no_events:
void spapr_events_init(sPAPRMachineState *spapr)
{
QTAILQ_INIT(&spapr->pending_events);
- spapr->check_exception_irq = xics_spapr_alloc(spapr->xics, 0, 0, false,
+ spapr->check_exception_irq = xics_spapr_alloc(spapr->xics, 0, false,
&error_fatal);
spapr->epow_notifier.notify = spapr_powerdown_req;
qemu_register_powerdown_notifier(&spapr->epow_notifier);
diff --git a/hw/ppc/spapr_pci.c b/hw/ppc/spapr_pci.c
index 949c44f..4d06794 100644
--- a/hw/ppc/spapr_pci.c
+++ b/hw/ppc/spapr_pci.c
@@ -362,7 +362,7 @@ static void rtas_ibm_change_msi(PowerPCCPU *cpu,
sPAPRMachineState *spapr,
}
/* Allocate MSIs */
- irq = xics_spapr_alloc_block(spapr->xics, 0, req_num, false,
+ irq = xics_spapr_alloc_block(spapr->xics, req_num, false,
ret_intr_type == RTAS_TYPE_MSI, &err);
if (err) {
error_reportf_err(err, "Can't allocate MSIs for device %x: ",
@@ -1444,8 +1444,7 @@ static void spapr_phb_realize(DeviceState *dev, Error
**errp)
uint32_t irq;
Error *local_err = NULL;
- irq = xics_spapr_alloc_block(spapr->xics, 0, 1, true, false,
- &local_err);
+ irq = xics_spapr_alloc_block(spapr->xics, 1, true, false, &local_err);
if (local_err) {
error_propagate(errp, local_err);
error_prepend(errp, "can't allocate LSIs: ");
diff --git a/hw/ppc/spapr_vio.c b/hw/ppc/spapr_vio.c
index f93244d..22360af 100644
--- a/hw/ppc/spapr_vio.c
+++ b/hw/ppc/spapr_vio.c
@@ -463,7 +463,7 @@ static void spapr_vio_busdev_realize(DeviceState *qdev,
Error **errp)
dev->qdev.id = id;
}
- dev->irq = xics_spapr_alloc(spapr->xics, 0, dev->irq, false, &local_err);
+ dev->irq = xics_spapr_alloc(spapr->xics, dev->irq, false, &local_err);
if (local_err) {
error_propagate(errp, local_err);
return;
diff --git a/include/hw/ppc/xics.h b/include/hw/ppc/xics.h
index 2db9f93..1ea40bd 100644
--- a/include/hw/ppc/xics.h
+++ b/include/hw/ppc/xics.h
@@ -85,7 +85,7 @@ struct XICSState {
uint32_t nr_servers;
uint32_t nr_irqs;
ICPState *ss;
- ICSState *ics;
+ QLIST_HEAD(, ICSState) ics;
};
#define TYPE_ICP "icp"
@@ -111,6 +111,7 @@ struct ICPState {
DeviceState parent_obj;
/*< public >*/
CPUState *cs;
+ ICSState *xirr_owner;
uint32_t xirr;
uint8_t pending_priority;
uint8_t mfrr;
@@ -145,6 +146,7 @@ struct ICSState {
qemu_irq *qirqs;
ICSIRQState *irqs;
XICSState *xics;
+ QLIST_ENTRY(ICSState) list;
};
static inline bool ics_valid_irq(ICSState *ics, uint32_t nr)
@@ -172,10 +174,9 @@ struct ICSIRQState {
#define XICS_IRQS_SPAPR 1024
qemu_irq xics_get_qirq(XICSState *icp, int irq);
-int xics_spapr_alloc(XICSState *icp, int src, int irq_hint, bool lsi,
- Error **errp);
-int xics_spapr_alloc_block(XICSState *icp, int src, int num, bool lsi,
- bool align, Error **errp);
+int xics_spapr_alloc(XICSState *icp, int irq_hint, bool lsi, Error **errp);
+int xics_spapr_alloc_block(XICSState *icp, int num, bool lsi, bool align,
+ Error **errp);
void xics_spapr_free(XICSState *icp, int irq, int num);
void xics_cpu_setup(XICSState *icp, PowerPCCPU *cpu);
@@ -195,6 +196,6 @@ void ics_write_xive(ICSState *ics, int nr, int server,
void ics_set_irq_type(ICSState *ics, int srcno, bool lsi);
-int xics_find_source(XICSState *icp, int irq);
+ICSState *xics_find_source(XICSState *icp, int irq);
#endif /* XICS_H */
--
2.7.4
[Qemu-devel] [PATCH v4 8/9] ppc/xics: Add xics to the monitor "info pic" command, Nikunj A Dadhania, 2016/09/19
[Qemu-devel] [PATCH v4 6/9] ppc/xics: Split ICS into ics-base and ics class, Nikunj A Dadhania, 2016/09/19