Displaying 20 results from an estimated 21 matches for "dma_pool_create".
2019 Jun 11
2
[PATCH v4 4/8] s390/airq: use DMA memory for adapter interrupts
...gned long start,
> }
> EXPORT_SYMBOL(airq_iv_scan);
>
> -static int __init airq_init(void)
> +int __init airq_init(void)
> {
> - airq_iv_cache = kmem_cache_create("airq_iv_cache", cache_line_size(),
> - cache_line_size(), 0, NULL);
> + airq_iv_cache = dma_pool_create("airq_iv_cache", cio_get_dma_css_dev(),
> + cache_line_size(),
> + cache_line_size(), PAGE_SIZE);
> if (!airq_iv_cache)
> return -ENOMEM;
Sorry about not noticing that in the last iteration; but you may return
an error here if airq_iv_cache could not be allocated...
2019 Jun 11
2
[PATCH v4 4/8] s390/airq: use DMA memory for adapter interrupts
...gned long start,
> }
> EXPORT_SYMBOL(airq_iv_scan);
>
> -static int __init airq_init(void)
> +int __init airq_init(void)
> {
> - airq_iv_cache = kmem_cache_create("airq_iv_cache", cache_line_size(),
> - cache_line_size(), 0, NULL);
> + airq_iv_cache = dma_pool_create("airq_iv_cache", cio_get_dma_css_dev(),
> + cache_line_size(),
> + cache_line_size(), PAGE_SIZE);
> if (!airq_iv_cache)
> return -ENOMEM;
Sorry about not noticing that in the last iteration; but you may return
an error here if airq_iv_cache could not be allocated...
2019 Jun 11
0
[PATCH v4 4/8] s390/airq: use DMA memory for adapter interrupts
...> > EXPORT_SYMBOL(airq_iv_scan);
> >
> > -static int __init airq_init(void)
> > +int __init airq_init(void)
> > {
> > - airq_iv_cache = ) "airq_iv_cache", cache_line_size(),
> > - cache_line_size(), 0, NULL);
> > + airq_iv_cache = dma_pool_create("airq_iv_cache", cio_get_dma_css_dev(),
> > + cache_line_size(),
> > + cache_line_size(), PAGE_SIZE);
> > if (!airq_iv_cache)
> > return -ENOMEM;
>
> Sorry about not noticing that in the last iteration; but you may return
> an error here if a...
2019 Jun 11
2
[PATCH v4 4/8] s390/airq: use DMA memory for adapter interrupts
...can);
> > >
> > > -static int __init airq_init(void)
> > > +int __init airq_init(void)
> > > {
> > > - airq_iv_cache = ) "airq_iv_cache", cache_line_size(),
> > > - cache_line_size(), 0, NULL);
> > > + airq_iv_cache = dma_pool_create("airq_iv_cache", cio_get_dma_css_dev(),
> > > + cache_line_size(),
> > > + cache_line_size(), PAGE_SIZE);
> > > if (!airq_iv_cache)
> > > return -ENOMEM;
> >
> > Sorry about not noticing that in the last iteration; but you ma...
2019 Jun 11
2
[PATCH v4 4/8] s390/airq: use DMA memory for adapter interrupts
...can);
> > >
> > > -static int __init airq_init(void)
> > > +int __init airq_init(void)
> > > {
> > > - airq_iv_cache = ) "airq_iv_cache", cache_line_size(),
> > > - cache_line_size(), 0, NULL);
> > > + airq_iv_cache = dma_pool_create("airq_iv_cache", cio_get_dma_css_dev(),
> > > + cache_line_size(),
> > > + cache_line_size(), PAGE_SIZE);
> > > if (!airq_iv_cache)
> > > return -ENOMEM;
> >
> > Sorry about not noticing that in the last iteration; but you ma...
2020 Aug 19
0
[PATCH 28/28] nvme-pci: use dma_alloc_pages backed dmapools
...device(dev->dev, sgl_dma, i * sizeof(*sg_list),
+ DMA_TO_DEVICE);
return BLK_STS_OK;
}
@@ -2457,30 +2470,6 @@ static int nvme_disable_prepare_reset(struct nvme_dev *dev, bool shutdown)
return 0;
}
-static int nvme_setup_prp_pools(struct nvme_dev *dev)
-{
- dev->prp_page_pool = dma_pool_create("prp list page", dev->dev,
- NVME_CTRL_PAGE_SIZE,
- NVME_CTRL_PAGE_SIZE, 0);
- if (!dev->prp_page_pool)
- return -ENOMEM;
-
- /* Optimisation for I/Os between 4k and 128k */
- dev->prp_small_pool = dma_pool_create("prp list 256", dev->dev,
- 256, 256,...
2019 Jun 12
0
[PATCH v4 4/8] s390/airq: use DMA memory for adapter interrupts
...t; > > -static int __init airq_init(void)
> > > > +int __init airq_init(void)
> > > > {
> > > > - airq_iv_cache = ) "airq_iv_cache", cache_line_size(),
> > > > - cache_line_size(), 0, NULL);
> > > > + airq_iv_cache = dma_pool_create("airq_iv_cache", cio_get_dma_css_dev(),
> > > > + cache_line_size(),
> > > > + cache_line_size(), PAGE_SIZE);
> > > > if (!airq_iv_cache)
> > > > return -ENOMEM;
> > >
> > > Sorry about not noticing that in...
2019 May 23
0
[PATCH v2 4/8] s390/airq: use DMA memory for adapter interrupts
...ed long airq_iv_scan(struct airq_iv *iv, unsigned long start,
}
EXPORT_SYMBOL(airq_iv_scan);
-static int __init airq_init(void)
+int __init airq_init(void)
{
- airq_iv_cache = kmem_cache_create("airq_iv_cache", cache_line_size(),
- cache_line_size(), 0, NULL);
+ airq_iv_cache = dma_pool_create("airq_iv_cache", cio_get_dma_css_dev(),
+ cache_line_size(),
+ cache_line_size(), PAGE_SIZE);
if (!airq_iv_cache)
return -ENOMEM;
return 0;
}
-subsys_initcall(airq_init);
diff --git a/drivers/s390/cio/cio.h b/drivers/s390/cio/cio.h
index 06a91743335a..4d6c7d16416e 100644
-...
2019 Jun 06
0
[PATCH v4 4/8] s390/airq: use DMA memory for adapter interrupts
...ed long airq_iv_scan(struct airq_iv *iv, unsigned long start,
}
EXPORT_SYMBOL(airq_iv_scan);
-static int __init airq_init(void)
+int __init airq_init(void)
{
- airq_iv_cache = kmem_cache_create("airq_iv_cache", cache_line_size(),
- cache_line_size(), 0, NULL);
+ airq_iv_cache = dma_pool_create("airq_iv_cache", cio_get_dma_css_dev(),
+ cache_line_size(),
+ cache_line_size(), PAGE_SIZE);
if (!airq_iv_cache)
return -ENOMEM;
return 0;
}
-subsys_initcall(airq_init);
diff --git a/drivers/s390/cio/cio.h b/drivers/s390/cio/cio.h
index 06a91743335a..4d6c7d16416e 100644
-...
2019 Jun 12
0
[PATCH v5 4/8] s390/airq: use DMA memory for adapter interrupts
...ed long airq_iv_scan(struct airq_iv *iv, unsigned long start,
}
EXPORT_SYMBOL(airq_iv_scan);
-static int __init airq_init(void)
+int __init airq_init(void)
{
- airq_iv_cache = kmem_cache_create("airq_iv_cache", cache_line_size(),
- cache_line_size(), 0, NULL);
+ airq_iv_cache = dma_pool_create("airq_iv_cache", cio_get_dma_css_dev(),
+ cache_line_size(),
+ cache_line_size(), PAGE_SIZE);
if (!airq_iv_cache)
return -ENOMEM;
return 0;
}
-subsys_initcall(airq_init);
diff --git a/drivers/s390/cio/cio.h b/drivers/s390/cio/cio.h
index 06a91743335a..4d6c7d16416e 100644
-...
2019 May 29
0
[PATCH v3 4/8] s390/airq: use DMA memory for adapter interrupts
...ed long airq_iv_scan(struct airq_iv *iv, unsigned long start,
}
EXPORT_SYMBOL(airq_iv_scan);
-static int __init airq_init(void)
+int __init airq_init(void)
{
- airq_iv_cache = kmem_cache_create("airq_iv_cache", cache_line_size(),
- cache_line_size(), 0, NULL);
+ airq_iv_cache = dma_pool_create("airq_iv_cache", cio_get_dma_css_dev(),
+ cache_line_size(),
+ cache_line_size(), PAGE_SIZE);
if (!airq_iv_cache)
return -ENOMEM;
return 0;
}
-subsys_initcall(airq_init);
diff --git a/drivers/s390/cio/cio.h b/drivers/s390/cio/cio.h
index 06a91743335a..4d6c7d16416e 100644
-...
2020 Aug 19
39
a saner API for allocating DMA addressable pages
Hi all,
this series replaced the DMA_ATTR_NON_CONSISTENT flag to dma_alloc_attrs
with a separate new dma_alloc_pages API, which is available on all
platforms. In addition to cleaning up the convoluted code path, this
ensures that other drivers that have asked for better support for
non-coherent DMA to pages with incurring bounce buffering over can finally
be properly supported.
I'm still a
2016 Aug 26
0
[PATCH v8 05/18] dmaengine: st_fdma: Add STMicroelectronics FDMA engine driver support
...de_pool, fdesc->node[i].desc,
+ fdesc->node[i].pdesc);
+ kfree(fdesc);
+ return NULL;
+}
+
+static int st_fdma_alloc_chan_res(struct dma_chan *chan)
+{
+ struct st_fdma_chan *fchan = to_st_fdma_chan(chan);
+
+ /* Create the dma pool for descriptor allocation */
+ fchan->node_pool = dma_pool_create(dev_name(&chan->dev->device),
+ fchan->fdev->dev,
+ sizeof(struct st_fdma_hw_node),
+ __alignof__(struct st_fdma_hw_node),
+ 0);
+
+ if (!fchan->node_pool) {
+ dev_err(fchan->fdev->dev, "unable to allocate desc pool\n");
+ return...
2019 Jun 06
15
[PATCH v4 0/8] s390: virtio: support protected virtualization
Enhanced virtualization protection technology may require the use of
bounce buffers for I/O. While support for this was built into the virtio
core, virtio-ccw wasn't changed accordingly.
Some background on technology (not part of this series) and the
terminology used.
* Protected Virtualization (PV):
Protected Virtualization guarantees, that non-shared memory of a guest
that operates in PV
2019 Jun 06
15
[PATCH v4 0/8] s390: virtio: support protected virtualization
Enhanced virtualization protection technology may require the use of
bounce buffers for I/O. While support for this was built into the virtio
core, virtio-ccw wasn't changed accordingly.
Some background on technology (not part of this series) and the
terminology used.
* Protected Virtualization (PV):
Protected Virtualization guarantees, that non-shared memory of a guest
that operates in PV
2019 Jun 12
21
[PATCH v5 0/8] s390: virtio: support protected virtualization
Enhanced virtualization protection technology may require the use of
bounce buffers for I/O. While support for this was built into the virtio
core, virtio-ccw wasn't changed accordingly.
Some background on technology (not part of this series) and the
terminology used.
* Protected Virtualization (PV):
Protected Virtualization guarantees, that non-shared memory of a guest
that operates in PV
2019 Jun 12
21
[PATCH v5 0/8] s390: virtio: support protected virtualization
Enhanced virtualization protection technology may require the use of
bounce buffers for I/O. While support for this was built into the virtio
core, virtio-ccw wasn't changed accordingly.
Some background on technology (not part of this series) and the
terminology used.
* Protected Virtualization (PV):
Protected Virtualization guarantees, that non-shared memory of a guest
that operates in PV
2019 May 29
16
[PATCH v3 0/8] s390: virtio: support protected virtualization
Enhanced virtualization protection technology may require the use of
bounce buffers for I/O. While support for this was built into the virtio
core, virtio-ccw wasn't changed accordingly.
Some background on technology (not part of this series) and the
terminology used.
* Protected Virtualization (PV):
Protected Virtualization guarantees, that non-shared memory of a guest
that operates in PV
2019 May 23
18
[PATCH v2 0/8] s390: virtio: support protected virtualization
Enhanced virtualization protection technology may require the use of
bounce buffers for I/O. While support for this was built into the virtio
core, virtio-ccw wasn't changed accordingly.
Some background on technology (not part of this series) and the
terminology used.
* Protected Virtualization (PV):
Protected Virtualization guarantees, that non-shared memory of a guest
that operates in PV
2016 Aug 26
32
[PATCH v8 00/18] Add support for FDMA DMA controller and slim core rproc found on STi chipsets
Hi Vinod, Bjorn, Patrice,
This patchset adds support for the Flexible Direct Memory Access (FDMA) core
found on STi chipsets from STMicroelectronics. The FDMA is a slim core CPU
with a dedicated firmware. It is a general purpose DMA controller supporting
16 independent channels and data can be moved from memory to memory or between
memory and paced latency critical real time targets.
After quite