From: Halil Pasic <pasic@linux.ibm.com> To: kvm@vger.kernel.org, linux-s390@vger.kernel.org, Cornelia Huck <cohuck@redhat.com>, Sebastian Ott <sebott@linux.ibm.com>, Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Halil Pasic <pasic@linux.ibm.com>, virtualization@lists.linux-foundation.org, "Michael S. Tsirkin" <mst@redhat.com>, Christoph Hellwig <hch@infradead.org>, Thomas Huth <thuth@redhat.com>, Christian Borntraeger <borntraeger@de.ibm.com>, Viktor Mihajlovski <mihajlov@linux.ibm.com>, Vasily Gorbik <gor@linux.ibm.com>, Janosch Frank <frankja@linux.ibm.com>, Michael Mueller <mimu@linux.ibm.com>, Claudio Imbrenda <imbrenda@linux.ibm.com>, Farhan Ali <alifm@linux.ibm.com>, Eric Farman <farman@linux.ibm.com>, "Jason J. Herne" <jjherne@linux.ibm.com> Subject: [PATCH v5 5/8] virtio/s390: use cacheline aligned airq bit vectors Date: Wed, 12 Jun 2019 13:12:33 +0200 [thread overview] Message-ID: <20190612111236.99538-6-pasic@linux.ibm.com> (raw) In-Reply-To: <20190612111236.99538-1-pasic@linux.ibm.com> The flag AIRQ_IV_CACHELINE was recently added to airq_iv_create(). Let us use it! We actually wanted the vector to span a cacheline all along. Signed-off-by: Halil Pasic <pasic@linux.ibm.com> Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com> Reviewed-by: Cornelia Huck <cohuck@redhat.com> --- drivers/s390/virtio/virtio_ccw.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/s390/virtio/virtio_ccw.c b/drivers/s390/virtio/virtio_ccw.c index f995798bb025..1da7430f94c8 100644 --- a/drivers/s390/virtio/virtio_ccw.c +++ b/drivers/s390/virtio/virtio_ccw.c @@ -216,7 +216,8 @@ static struct airq_info *new_airq_info(void) if (!info) return NULL; rwlock_init(&info->lock); - info->aiv = airq_iv_create(VIRTIO_IV_BITS, AIRQ_IV_ALLOC | AIRQ_IV_PTR); + info->aiv = airq_iv_create(VIRTIO_IV_BITS, AIRQ_IV_ALLOC | AIRQ_IV_PTR + | AIRQ_IV_CACHELINE); if (!info->aiv) { kfree(info); return NULL; -- 2.17.1
WARNING: multiple messages have this Message-ID (diff)
From: Halil Pasic <pasic@linux.ibm.com> To: kvm@vger.kernel.org, linux-s390@vger.kernel.org, Cornelia Huck <cohuck@redhat.com>, Sebastian Ott <sebott@linux.ibm.com>, Heiko Carstens <heiko.carstens@de.ibm.com> Cc: "Jason J. Herne" <jjherne@linux.ibm.com>, Christoph Hellwig <hch@infradead.org>, Thomas Huth <thuth@redhat.com>, Claudio Imbrenda <imbrenda@linux.ibm.com>, Janosch Frank <frankja@linux.ibm.com>, Vasily Gorbik <gor@linux.ibm.com>, "Michael S. Tsirkin" <mst@redhat.com>, Farhan Ali <alifm@linux.ibm.com>, Eric Farman <farman@linux.ibm.com>, virtualization@lists.linux-foundation.org, Halil Pasic <pasic@linux.ibm.com>, Christian Borntraeger <borntraeger@de.ibm.com>, Michael Mueller <mimu@linux.ibm.com>, Viktor Mihajlovski <mihajlov@linux.ibm.com> Subject: [PATCH v5 5/8] virtio/s390: use cacheline aligned airq bit vectors Date: Wed, 12 Jun 2019 13:12:33 +0200 [thread overview] Message-ID: <20190612111236.99538-6-pasic@linux.ibm.com> (raw) In-Reply-To: <20190612111236.99538-1-pasic@linux.ibm.com> The flag AIRQ_IV_CACHELINE was recently added to airq_iv_create(). Let us use it! We actually wanted the vector to span a cacheline all along. Signed-off-by: Halil Pasic <pasic@linux.ibm.com> Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com> Reviewed-by: Cornelia Huck <cohuck@redhat.com> --- drivers/s390/virtio/virtio_ccw.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/s390/virtio/virtio_ccw.c b/drivers/s390/virtio/virtio_ccw.c index f995798bb025..1da7430f94c8 100644 --- a/drivers/s390/virtio/virtio_ccw.c +++ b/drivers/s390/virtio/virtio_ccw.c @@ -216,7 +216,8 @@ static struct airq_info *new_airq_info(void) if (!info) return NULL; rwlock_init(&info->lock); - info->aiv = airq_iv_create(VIRTIO_IV_BITS, AIRQ_IV_ALLOC | AIRQ_IV_PTR); + info->aiv = airq_iv_create(VIRTIO_IV_BITS, AIRQ_IV_ALLOC | AIRQ_IV_PTR + | AIRQ_IV_CACHELINE); if (!info->aiv) { kfree(info); return NULL; -- 2.17.1
next prev parent reply other threads:[~2019-06-12 11:13 UTC|newest] Thread overview: 48+ messages / expand[flat|nested] mbox.gz Atom feed top 2019-06-12 11:12 [PATCH v5 0/8] s390: virtio: support protected virtualization Halil Pasic 2019-06-12 11:12 ` Halil Pasic 2019-06-12 11:12 ` [PATCH v5 1/8] s390/mm: force swiotlb for " Halil Pasic 2019-06-12 11:12 ` Halil Pasic 2019-06-13 8:09 ` Michael Mueller 2019-06-13 8:09 ` Michael Mueller 2019-07-11 21:48 ` Thiago Jung Bauermann 2019-07-11 21:48 ` Thiago Jung Bauermann 2019-06-12 11:12 ` [PATCH v5 2/8] s390/cio: introduce DMA pools to cio Halil Pasic 2019-06-12 11:12 ` Halil Pasic 2019-06-12 14:23 ` Cornelia Huck 2019-06-12 14:23 ` Cornelia Huck 2019-06-13 8:13 ` Michael Mueller 2019-06-13 8:13 ` Michael Mueller 2019-06-12 11:12 ` [PATCH v5 3/8] s390/cio: add basic protected virtualization support Halil Pasic 2019-06-12 11:12 ` Halil Pasic 2019-06-13 8:21 ` Michael Mueller 2019-06-13 8:21 ` Michael Mueller 2019-06-12 11:12 ` [PATCH v5 4/8] s390/airq: use DMA memory for adapter interrupts Halil Pasic 2019-06-12 11:12 ` Halil Pasic 2019-06-12 14:35 ` Cornelia Huck 2019-06-12 14:35 ` Cornelia Huck 2019-06-12 15:11 ` Halil Pasic 2019-06-12 15:11 ` Halil Pasic 2019-06-13 8:25 ` Michael Mueller 2019-06-13 8:25 ` Michael Mueller 2019-06-12 11:12 ` Halil Pasic [this message] 2019-06-12 11:12 ` [PATCH v5 5/8] virtio/s390: use cacheline aligned airq bit vectors Halil Pasic 2019-06-13 8:27 ` Michael Mueller 2019-06-13 8:27 ` Michael Mueller 2019-06-12 11:12 ` [PATCH v5 6/8] virtio/s390: add indirection to indicators access Halil Pasic 2019-06-12 11:12 ` Halil Pasic 2019-06-13 8:29 ` Michael Mueller 2019-06-13 8:29 ` Michael Mueller 2019-06-12 11:12 ` [PATCH v5 7/8] virtio/s390: use DMA memory for ccw I/O and classic notifiers Halil Pasic 2019-06-12 11:12 ` Halil Pasic 2019-06-13 8:32 ` Michael Mueller 2019-06-13 8:32 ` Michael Mueller 2019-06-12 11:12 ` [PATCH v5 8/8] virtio/s390: make airq summary indicators DMA Halil Pasic 2019-06-12 11:12 ` Halil Pasic 2019-06-13 8:35 ` Michael Mueller 2019-06-13 8:35 ` Michael Mueller 2019-06-13 9:11 ` [PATCH v5 0/8] s390: virtio: support protected virtualization Michael Mueller 2019-06-13 9:11 ` Michael Mueller 2019-06-13 11:14 ` Halil Pasic 2019-06-13 11:14 ` Halil Pasic 2019-06-13 11:17 ` Michael Mueller 2019-06-13 11:17 ` Michael Mueller
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