Displaying 20 results from an estimated 20 matches for "gen_pool_create".
2019 May 27
3
[PATCH v2 2/8] s390/cio: introduce DMA pools to cio
...ma_css_dev(void)
> +{
> + return &channel_subsystems[0]->device;
> +}
> +
> +struct gen_pool *cio_gp_dma_create(struct device *dma_dev, int nr_pages)
> +{
> + struct gen_pool *gp_dma;
> + void *cpu_addr;
> + dma_addr_t dma_addr;
> + int i;
> +
> + gp_dma = gen_pool_create(3, -1);
> + if (!gp_dma)
> + return NULL;
> + for (i = 0; i < nr_pages; ++i) {
> + cpu_addr = dma_alloc_coherent(dma_dev, PAGE_SIZE, &dma_addr,
> + CIO_DMA_GFP);
> + if (!cpu_addr)
> + return gp_dma;
So, you may return here with no memory added to the poo...
2019 May 27
3
[PATCH v2 2/8] s390/cio: introduce DMA pools to cio
...ma_css_dev(void)
> +{
> + return &channel_subsystems[0]->device;
> +}
> +
> +struct gen_pool *cio_gp_dma_create(struct device *dma_dev, int nr_pages)
> +{
> + struct gen_pool *gp_dma;
> + void *cpu_addr;
> + dma_addr_t dma_addr;
> + int i;
> +
> + gp_dma = gen_pool_create(3, -1);
> + if (!gp_dma)
> + return NULL;
> + for (i = 0; i < nr_pages; ++i) {
> + cpu_addr = dma_alloc_coherent(dma_dev, PAGE_SIZE, &dma_addr,
> + CIO_DMA_GFP);
> + if (!cpu_addr)
> + return gp_dma;
So, you may return here with no memory added to the poo...
2019 May 27
0
[PATCH v2 2/8] s390/cio: introduce DMA pools to cio
...l_subsystems[0]->device;
> > +}
> > +
> > +struct gen_pool *cio_gp_dma_create(struct device *dma_dev, int nr_pages)
> > +{
> > + struct gen_pool *gp_dma;
> > + void *cpu_addr;
> > + dma_addr_t dma_addr;
> > + int i;
> > +
> > + gp_dma = gen_pool_create(3, -1);
> > + if (!gp_dma)
> > + return NULL;
> > + for (i = 0; i < nr_pages; ++i) {
> > + cpu_addr = dma_alloc_coherent(dma_dev, PAGE_SIZE, &dma_addr,
> > + CIO_DMA_GFP);
> > + if (!cpu_addr)
> > + return gp_dma;
>
> So, you ma...
2019 Apr 09
0
[RFC PATCH 04/12] s390/cio: introduce cio DMA pool
...c gfp_t cio_dma_flags;
> +
> +static void __init cio_dma_pool_init(void)
> +{
> + void *cpu_addr;
> + dma_addr_t dma_addr;
> + int i;
> +
> + cio_dma_css = &channel_subsystems[0]->device;
> + cio_dma_flags = GFP_DMA | GFP_KERNEL | __GFP_ZERO;
> + cio_dma_pool = gen_pool_create(3, -1);
> + /* No need to free up the resources: compiled in */
> + for (i = 0; i < POOL_INIT_PAGES; ++i) {
> + cpu_addr = dma_alloc_coherent(cio_dma_css, PAGE_SIZE, &dma_addr,
> + cio_dma_flags);
> + if (!cpu_addr)
> + return;
> + gen_pool_add_virt(cio_dm...
2019 May 23
0
[PATCH v2 2/8] s390/cio: introduce DMA pools to cio
..._GFP (GFP_KERNEL | __GFP_ZERO)
+
+
+struct device *cio_get_dma_css_dev(void)
+{
+ return &channel_subsystems[0]->device;
+}
+
+struct gen_pool *cio_gp_dma_create(struct device *dma_dev, int nr_pages)
+{
+ struct gen_pool *gp_dma;
+ void *cpu_addr;
+ dma_addr_t dma_addr;
+ int i;
+
+ gp_dma = gen_pool_create(3, -1);
+ if (!gp_dma)
+ return NULL;
+ for (i = 0; i < nr_pages; ++i) {
+ cpu_addr = dma_alloc_coherent(dma_dev, PAGE_SIZE, &dma_addr,
+ CIO_DMA_GFP);
+ if (!cpu_addr)
+ return gp_dma;
+ gen_pool_add_virt(gp_dma, (unsigned long) cpu_addr,
+ dma_addr, PAGE_SIZE, -1);
+ }...
2019 Apr 09
0
[RFC PATCH 04/12] s390/cio: introduce cio DMA pool
...> > > +{
> > > + void *cpu_addr;
> > > + dma_addr_t dma_addr;
> > > + int i;
> > > +
> > > + cio_dma_css = &channel_subsystems[0]->device;
> > > + cio_dma_flags = GFP_DMA | GFP_KERNEL | __GFP_ZERO;
> > > + cio_dma_pool = gen_pool_create(3, -1);
> > > + /* No need to free up the resources: compiled in */
> > > + for (i = 0; i < POOL_INIT_PAGES; ++i) {
> > > + cpu_addr = dma_alloc_coherent(cio_dma_css, PAGE_SIZE, &dma_addr,
> > > + cio_dma_flags);
> > > + if (!cpu_addr)...
2019 Apr 26
0
[PATCH 05/10] s390/cio: introduce DMA pools to cio
..._GFP (GFP_KERNEL | __GFP_ZERO)
+
+
+struct device *cio_get_dma_css_dev(void)
+{
+ return &channel_subsystems[0]->device;
+}
+
+struct gen_pool *cio_gp_dma_create(struct device *dma_dev, int nr_pages)
+{
+ struct gen_pool *gp_dma;
+ void *cpu_addr;
+ dma_addr_t dma_addr;
+ int i;
+
+ gp_dma = gen_pool_create(3, -1);
+ if (!gp_dma)
+ return NULL;
+ for (i = 0; i < nr_pages; ++i) {
+ cpu_addr = dma_alloc_coherent(dma_dev, PAGE_SIZE, &dma_addr,
+ CIO_DMA_GFP);
+ if (!cpu_addr)
+ return gp_dma;
+ gen_pool_add_virt(gp_dma, (unsigned long) cpu_addr,
+ dma_addr, PAGE_SIZE, -1);
+ }...
2019 May 29
0
[PATCH v3 2/8] s390/cio: introduce DMA pools to cio
...cio supports only a single css */
+struct device *cio_get_dma_css_dev(void)
+{
+ return &channel_subsystems[0]->device;
+}
+
+struct gen_pool *cio_gp_dma_create(struct device *dma_dev, int nr_pages)
+{
+ struct gen_pool *gp_dma;
+ void *cpu_addr;
+ dma_addr_t dma_addr;
+ int i;
+
+ gp_dma = gen_pool_create(3, -1);
+ if (!gp_dma)
+ return NULL;
+ for (i = 0; i < nr_pages; ++i) {
+ cpu_addr = dma_alloc_coherent(dma_dev, PAGE_SIZE, &dma_addr,
+ CIO_DMA_GFP);
+ if (!cpu_addr)
+ return gp_dma;
+ gen_pool_add_virt(gp_dma, (unsigned long) cpu_addr,
+ dma_addr, PAGE_SIZE, -1);
+ }...
2019 Jun 06
0
[PATCH v4 2/8] s390/cio: introduce DMA pools to cio
...cio supports only a single css */
+struct device *cio_get_dma_css_dev(void)
+{
+ return &channel_subsystems[0]->device;
+}
+
+struct gen_pool *cio_gp_dma_create(struct device *dma_dev, int nr_pages)
+{
+ struct gen_pool *gp_dma;
+ void *cpu_addr;
+ dma_addr_t dma_addr;
+ int i;
+
+ gp_dma = gen_pool_create(3, -1);
+ if (!gp_dma)
+ return NULL;
+ for (i = 0; i < nr_pages; ++i) {
+ cpu_addr = dma_alloc_coherent(dma_dev, PAGE_SIZE, &dma_addr,
+ CIO_DMA_GFP);
+ if (!cpu_addr)
+ return gp_dma;
+ gen_pool_add_virt(gp_dma, (unsigned long) cpu_addr,
+ dma_addr, PAGE_SIZE, -1);
+ }...
2019 Jun 12
0
[PATCH v5 2/8] s390/cio: introduce DMA pools to cio
...cio supports only a single css */
+struct device *cio_get_dma_css_dev(void)
+{
+ return &channel_subsystems[0]->device;
+}
+
+struct gen_pool *cio_gp_dma_create(struct device *dma_dev, int nr_pages)
+{
+ struct gen_pool *gp_dma;
+ void *cpu_addr;
+ dma_addr_t dma_addr;
+ int i;
+
+ gp_dma = gen_pool_create(3, -1);
+ if (!gp_dma)
+ return NULL;
+ for (i = 0; i < nr_pages; ++i) {
+ cpu_addr = dma_alloc_coherent(dma_dev, PAGE_SIZE, &dma_addr,
+ CIO_DMA_GFP);
+ if (!cpu_addr)
+ return gp_dma;
+ gen_pool_add_virt(gp_dma, (unsigned long) cpu_addr,
+ dma_addr, PAGE_SIZE, -1);
+ }...
2013 Mar 15
4
[PATCHv3 vringh] caif_virtio: Introduce caif over virtio
...+ GFP_ATOMIC);
+ if (cfv->alloc_addr)
+ break;
+
+ cfv->allocsz = (cfv->allocsz * 3) >> 2;
+ }
+
+ netdev_dbg(cfv->ndev, "Allocated %zd bytes from dma-memory\n",
+ cfv->allocsz);
+
+ /* Allocate on 128 bytes boundaries (1 << 7)*/
+ cfv->genpool = gen_pool_create(7, -1);
+ if (!cfv->genpool)
+ goto err;
+
+ err = gen_pool_add_virt(cfv->genpool, (unsigned long)cfv->alloc_addr,
+ (phys_addr_t)virt_to_phys(cfv->alloc_addr),
+ cfv->allocsz, -1);
+ if (err)
+ goto err;
+
+ /* Reserve some memory for low memory situations. If we hit the roo...
2013 Mar 15
4
[PATCHv3 vringh] caif_virtio: Introduce caif over virtio
...+ GFP_ATOMIC);
+ if (cfv->alloc_addr)
+ break;
+
+ cfv->allocsz = (cfv->allocsz * 3) >> 2;
+ }
+
+ netdev_dbg(cfv->ndev, "Allocated %zd bytes from dma-memory\n",
+ cfv->allocsz);
+
+ /* Allocate on 128 bytes boundaries (1 << 7)*/
+ cfv->genpool = gen_pool_create(7, -1);
+ if (!cfv->genpool)
+ goto err;
+
+ err = gen_pool_add_virt(cfv->genpool, (unsigned long)cfv->alloc_addr,
+ (phys_addr_t)virt_to_phys(cfv->alloc_addr),
+ cfv->allocsz, -1);
+ if (err)
+ goto err;
+
+ /* Reserve some memory for low memory situations. If we hit the roo...
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
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 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 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 Apr 26
33
[PATCH 00/10] 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 Apr 26
33
[PATCH 00/10] 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