diff options
| author | David Hildenbrand <david@redhat.com> | 2018-01-29 13:56:21 +0100 |
|---|---|---|
| committer | Cornelia Huck <cohuck@redhat.com> | 2018-02-09 09:37:13 +0100 |
| commit | f68ecdd4f3584130cf0cb8f545b7359fae150fe0 (patch) | |
| tree | 2f3f4a7b5c17dc1cd3b7aa3a17c63282124da43c /hw/intc/s390_flic.c | |
| parent | 63685bc489f68530d50f381a241d8fef5924f41c (diff) | |
s390x/tcg: cache the qemu flic in a central function
This avoids tons of conversions when handling interrupts.
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20180129125623.21729-17-david@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Diffstat (limited to 'hw/intc/s390_flic.c')
| -rw-r--r-- | hw/intc/s390_flic.c | 23 |
1 files changed, 17 insertions, 6 deletions
diff --git a/hw/intc/s390_flic.c b/hw/intc/s390_flic.c index 5febde2d65..b46c0f1bb4 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" +QEMUS390FLICState *s390_get_qemu_flic(S390FLICState *fs) +{ + static QEMUS390FLICState *flic; + + if (!flic) { + /* we only have one flic device, so this is fine to cache */ + flic = QEMU_S390_FLIC(fs); + } + return flic; +} + S390FLICState *s390_get_flic(void) { static S390FLICState *fs; @@ -79,7 +90,7 @@ static void qemu_s390_release_adapter_routes(S390FLICState *fs, static int qemu_s390_clear_io_flic(S390FLICState *fs, uint16_t subchannel_id, uint16_t subchannel_nr) { - QEMUS390FLICState *flic = QEMU_S390_FLIC(fs); + QEMUS390FLICState *flic = s390_get_qemu_flic(fs); QEMUS390FlicIO *cur, *next; uint8_t isc; @@ -113,7 +124,7 @@ static int qemu_s390_clear_io_flic(S390FLICState *fs, uint16_t subchannel_id, static int qemu_s390_modify_ais_mode(S390FLICState *fs, uint8_t isc, uint16_t mode) { - QEMUS390FLICState *flic = QEMU_S390_FLIC(fs); + QEMUS390FLICState *flic = s390_get_qemu_flic(fs); switch (mode) { case SIC_IRQ_MODE_ALL: @@ -134,7 +145,7 @@ static int qemu_s390_modify_ais_mode(S390FLICState *fs, uint8_t isc, static int qemu_s390_inject_airq(S390FLICState *fs, uint8_t type, uint8_t isc, uint8_t flags) { - QEMUS390FLICState *flic = QEMU_S390_FLIC(fs); + QEMUS390FLICState *flic = s390_get_qemu_flic(fs); S390FLICStateClass *fsc = S390_FLIC_COMMON_GET_CLASS(fs); bool flag = flags & S390_ADAPTER_SUPPRESSIBLE; uint32_t io_int_word = (isc << 27) | IO_INT_WORD_AI; @@ -246,7 +257,7 @@ void qemu_s390_flic_dequeue_crw_mchk(QEMUS390FLICState *flic) static void qemu_s390_inject_service(S390FLICState *fs, uint32_t parm) { - QEMUS390FLICState *flic = QEMU_S390_FLIC(fs); + QEMUS390FLICState *flic = s390_get_qemu_flic(fs); g_assert(qemu_mutex_iothread_locked()); /* multiplexing is good enough for sclp - kvm does it internally as well */ @@ -261,7 +272,7 @@ static void qemu_s390_inject_io(S390FLICState *fs, uint16_t subchannel_id, uint32_t io_int_word) { const uint8_t isc = IO_INT_WORD_ISC(io_int_word); - QEMUS390FLICState *flic = QEMU_S390_FLIC(fs); + QEMUS390FLICState *flic = s390_get_qemu_flic(fs); QEMUS390FlicIO *io; g_assert(qemu_mutex_iothread_locked()); @@ -279,7 +290,7 @@ static void qemu_s390_inject_io(S390FLICState *fs, uint16_t subchannel_id, static void qemu_s390_inject_crw_mchk(S390FLICState *fs) { - QEMUS390FLICState *flic = QEMU_S390_FLIC(fs); + QEMUS390FLICState *flic = s390_get_qemu_flic(fs); g_assert(qemu_mutex_iothread_locked()); flic->pending |= FLIC_PENDING_MCHK_CR; |