From 6762808fda6f622d1a2cfb4752e3840c8c49ca15 Mon Sep 17 00:00:00 2001 From: David Hildenbrand Date: Mon, 29 Jan 2018 13:56:23 +0100 Subject: [PATCH] s390x/flic: cache the common flic class in a central function This avoids tons of conversions when handling interrupts. Signed-off-by: David Hildenbrand Message-Id: <20180129125623.21729-19-david@redhat.com> Signed-off-by: Cornelia Huck --- hw/intc/s390_flic.c | 13 ++++++++++++- hw/s390x/css.c | 10 +++++----- hw/s390x/virtio-ccw.c | 4 ++-- include/hw/s390x/s390_flic.h | 1 + target/s390x/interrupt.c | 6 +++--- 5 files changed, 23 insertions(+), 11 deletions(-) diff --git a/hw/intc/s390_flic.c b/hw/intc/s390_flic.c index b46c0f1bb4..a85a149c6d 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 1c526fd7e2..301bf1772f 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 3d8f26949b..8f7fbc2ab7 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); } diff --git a/include/hw/s390x/s390_flic.h b/include/hw/s390x/s390_flic.h index a636afce42..4687ecfe83 100644 --- a/include/hw/s390x/s390_flic.h +++ b/include/hw/s390x/s390_flic.h @@ -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 */ diff --git a/target/s390x/interrupt.c b/target/s390x/interrupt.c index 1947012b25..25cfb3eef8 100644 --- a/target/s390x/interrupt.c +++ b/target/s390x/interrupt.c @@ -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); }