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authorDavid Hildenbrand <david@redhat.com>2018-01-29 13:56:23 +0100
committerCornelia Huck <cohuck@redhat.com>2018-02-09 09:37:13 +0100
commit6762808fda6f622d1a2cfb4752e3840c8c49ca15 (patch)
tree3c3ab824140240ae08d79401dcbc167a3b346391 /hw
parentc21a6106c19c894e117a5258c1a71ddc236fe1f0 (diff)
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s390x/flic: cache the common flic class in a central function
This avoids tons of conversions when handling interrupts. Signed-off-by: David Hildenbrand <david@redhat.com> Message-Id: <20180129125623.21729-19-david@redhat.com> Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Diffstat (limited to 'hw')
-rw-r--r--hw/intc/s390_flic.c13
-rw-r--r--hw/s390x/css.c10
-rw-r--r--hw/s390x/virtio-ccw.c4
3 files changed, 19 insertions, 8 deletions
diff --git a/hw/intc/s390_flic.c b/hw/intc/s390_flic.c
index b46c0f1..a85a149 100644
--- a/hw/intc/s390_flic.c
+++ b/hw/intc/s390_flic.c
@@ -22,6 +22,17 @@
#include "qapi/error.h"
#include "hw/s390x/s390-virtio-ccw.h"
+S390FLICStateClass *s390_get_flic_class(S390FLICState *fs)
+{
+ static S390FLICStateClass *class;
+
+ if (!class) {
+ /* we only have one flic device, so this is fine to cache */
+ class = S390_FLIC_COMMON_GET_CLASS(fs);
+ }
+ return class;
+}
+
QEMUS390FLICState *s390_get_qemu_flic(S390FLICState *fs)
{
static QEMUS390FLICState *flic;
@@ -146,7 +157,7 @@ static int qemu_s390_inject_airq(S390FLICState *fs, uint8_t type,
uint8_t isc, uint8_t flags)
{
QEMUS390FLICState *flic = s390_get_qemu_flic(fs);
- S390FLICStateClass *fsc = S390_FLIC_COMMON_GET_CLASS(fs);
+ S390FLICStateClass *fsc = s390_get_flic_class(fs);
bool flag = flags & S390_ADAPTER_SUPPRESSIBLE;
uint32_t io_int_word = (isc << 27) | IO_INT_WORD_AI;
diff --git a/hw/s390x/css.c b/hw/s390x/css.c
index 1c526fd..301bf17 100644
--- a/hw/s390x/css.c
+++ b/hw/s390x/css.c
@@ -439,7 +439,7 @@ static int s390_io_adapter_map(AdapterInfo *adapter, uint64_t map_addr,
bool do_map)
{
S390FLICState *fs = s390_get_flic();
- S390FLICStateClass *fsc = S390_FLIC_COMMON_GET_CLASS(fs);
+ S390FLICStateClass *fsc = s390_get_flic_class(fs);
return fsc->io_adapter_map(fs, adapter->adapter_id, map_addr, do_map);
}
@@ -520,7 +520,7 @@ void css_register_io_adapters(CssIoAdapterType type, bool swap, bool maskable,
int ret, isc;
IoAdapter *adapter;
S390FLICState *fs = s390_get_flic();
- S390FLICStateClass *fsc = S390_FLIC_COMMON_GET_CLASS(fs);
+ S390FLICStateClass *fsc = s390_get_flic_class(fs);
/*
* Disallow multiple registrations for the same device type.
@@ -566,7 +566,7 @@ static void css_clear_io_interrupt(uint16_t subchannel_id,
Error *err = NULL;
static bool no_clear_irq;
S390FLICState *fs = s390_get_flic();
- S390FLICStateClass *fsc = S390_FLIC_COMMON_GET_CLASS(fs);
+ S390FLICStateClass *fsc = s390_get_flic_class(fs);
int r;
if (unlikely(no_clear_irq)) {
@@ -640,7 +640,7 @@ void css_conditional_io_interrupt(SubchDev *sch)
int css_do_sic(CPUS390XState *env, uint8_t isc, uint16_t mode)
{
S390FLICState *fs = s390_get_flic();
- S390FLICStateClass *fsc = S390_FLIC_COMMON_GET_CLASS(fs);
+ S390FLICStateClass *fsc = s390_get_flic_class(fs);
int r;
if (env->psw.mask & PSW_MASK_PSTATE) {
@@ -666,7 +666,7 @@ out:
void css_adapter_interrupt(CssIoAdapterType type, uint8_t isc)
{
S390FLICState *fs = s390_get_flic();
- S390FLICStateClass *fsc = S390_FLIC_COMMON_GET_CLASS(fs);
+ S390FLICStateClass *fsc = s390_get_flic_class(fs);
uint32_t io_int_word = (isc << 27) | IO_INT_WORD_AI;
IoAdapter *adapter = channel_subsys.io_adapters[type][isc];
diff --git a/hw/s390x/virtio-ccw.c b/hw/s390x/virtio-ccw.c
index 3d8f269..8f7fbc2 100644
--- a/hw/s390x/virtio-ccw.c
+++ b/hw/s390x/virtio-ccw.c
@@ -1111,7 +1111,7 @@ static int virtio_ccw_setup_irqroutes(VirtioCcwDevice *dev, int nvqs)
VirtIODevice *vdev = virtio_bus_get_device(&dev->bus);
int ret;
S390FLICState *fs = s390_get_flic();
- S390FLICStateClass *fsc = S390_FLIC_COMMON_GET_CLASS(fs);
+ S390FLICStateClass *fsc = s390_get_flic_class(fs);
ret = virtio_ccw_get_mappings(dev);
if (ret) {
@@ -1129,7 +1129,7 @@ static int virtio_ccw_setup_irqroutes(VirtioCcwDevice *dev, int nvqs)
static void virtio_ccw_release_irqroutes(VirtioCcwDevice *dev, int nvqs)
{
S390FLICState *fs = s390_get_flic();
- S390FLICStateClass *fsc = S390_FLIC_COMMON_GET_CLASS(fs);
+ S390FLICStateClass *fsc = s390_get_flic_class(fs);
fsc->release_adapter_routes(fs, &dev->routes);
}