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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>
This commit is contained in:
David Hildenbrand 2018-01-29 13:56:23 +01:00 committed by Cornelia Huck
parent c21a6106c1
commit 6762808fda
5 changed files with 23 additions and 11 deletions
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13
hw/intc/s390_flic.c
View File

@ -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;

10
hw/s390x/css.c
View File

@ -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];

4
hw/s390x/virtio-ccw.c
View File

@ -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);
}

1
include/hw/s390x/s390_flic.h
View File

@ -136,6 +136,7 @@ void s390_flic_init(void);
S390FLICState *s390_get_flic(void);
QEMUS390FLICState *s390_get_qemu_flic(S390FLICState *fs);
S390FLICStateClass *s390_get_flic_class(S390FLICState *fs);
bool ais_needed(void *opaque);
#endif /* HW_S390_FLIC_H */

6
target/s390x/interrupt.c
View File

@ -134,7 +134,7 @@ void cpu_inject_stop(S390CPU *cpu)
void s390_sclp_extint(uint32_t parm)
{
S390FLICState *fs = s390_get_flic();
S390FLICStateClass *fsc = S390_FLIC_COMMON_GET_CLASS(fs);
S390FLICStateClass *fsc = s390_get_flic_class(fs);
fsc->inject_service(fs, parm);
}
@ -143,7 +143,7 @@ void s390_io_interrupt(uint16_t subchannel_id, uint16_t subchannel_nr,
uint32_t io_int_parm, uint32_t io_int_word)
{
S390FLICState *fs = s390_get_flic();
S390FLICStateClass *fsc = S390_FLIC_COMMON_GET_CLASS(fs);
S390FLICStateClass *fsc = s390_get_flic_class(fs);
fsc->inject_io(fs, subchannel_id, subchannel_nr, io_int_parm, io_int_word);
}
@ -151,7 +151,7 @@ void s390_io_interrupt(uint16_t subchannel_id, uint16_t subchannel_nr,
void s390_crw_mchk(void)
{
S390FLICState *fs = s390_get_flic();
S390FLICStateClass *fsc = S390_FLIC_COMMON_GET_CLASS(fs);
S390FLICStateClass *fsc = s390_get_flic_class(fs);
fsc->inject_crw_mchk(fs);
}