search for: dma_map_sg_attrs

..., enum dma_data_direction dir, - struct dma_attrs *attrs) + unsigned long attrs) void dma_unmap_single_attrs(struct device *dev, dma_addr_t dma_addr, size_t size, enum dma_data_direction dir, - struct dma_attrs *attrs) + unsigned long attrs) int dma_map_sg_attrs(struct device *dev, struct scatterlist *sgl, int nents, enum dma_data_direction dir, - struct dma_attrs *attrs) + unsigned long attrs) void dma_unmap_sg_attrs(struct device *dev, struct scatterlist *sgl, int nents, enum dma_data_direction dir, - struct dma_attrs *attrs) +...

...- dma_set_attr(DMA_ATTR_SKIP_CPU_SYNC, &attrs); /* Only cache aligned DMA transfers are reliable */ if (!IS_ALIGNED(vaddr | size, dma_align)) { @@ -554,7 +548,7 @@ static void *vb2_dc_get_userptr(void *alloc_ctx, unsigned long vaddr, * prepare() memop is called. */ sgt->nents = dma_map_sg_attrs(buf->dev, sgt->sgl, sgt->orig_nents, - buf->dma_dir, &attrs); + buf->dma_dir, DMA_ATTR_SKIP_CPU_SYNC); if (sgt->nents <= 0) { pr_err("failed to map scatterlist\n"); ret = -EIO; @@ -578,7 +572,7 @@ out: fail_map_sg: dma_unmap_sg_attrs...

...+{ > + enum dma_data_direction dir; > + struct device *dev; > + int err, ret; > + > + if (!premapped) > + return virtqueue_add_sg(vq, sg, num, out, data, ctx, gfp); > + > + dir = out ? DMA_TO_DEVICE : DMA_FROM_DEVICE; > + dev = virtqueue_dma_dev(vq); > + > + ret = dma_map_sg_attrs(dev, sg, num, dir, 0); > + if (ret != num) > + goto err; > + > + err = virtqueue_add_sg(vq, sg, num, out, data, ctx, gfp); > + if (err < 0) > + goto err; > + > + return 0; > + > +err: > + dma_unmap_sg_attrs(dev, sg, num, dir, 0); > + return -ENOMEM; > +}...

...00350ef0 > DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 > DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 > Call Trace: > dma_direct_map_page include/linux/dma-direct.h:170 [inline] > dma_direct_map_sg+0x3bb/0x670 kernel/dma/direct.c:368 > dma_map_sg_attrs+0xd0/0x160 kernel/dma/mapping.c:183 > drm_gem_shmem_get_pages_sgt drivers/gpu/drm/drm_gem_shmem_helper.c:700 [inline] > drm_gem_shmem_get_pages_sgt+0x1fc/0x310 drivers/gpu/drm/drm_gem_shmem_helper.c:679 > virtio_gpu_object_shmem_init drivers/gpu/drm/virtio/virtgpu_object.c:153 [inline]...

...amp;& obj->funcs->get_sg_table) > sgt = obj->funcs->get_sg_table(obj); > - else > - sgt = obj->dev->driver->gem_prime_get_sg_table(obj); > + > + if (!sgt) > + return ERR_PTR(-EINVAL); > + else if (IS_ERR(sgt)) > + return sgt; > > if (!dma_map_sg_attrs(attach->dev, sgt->sgl, sgt->nents, dir, > DMA_ATTR_SKIP_CPU_SYNC)) { > diff --git a/include/drm/drm_drv.h b/include/drm/drm_drv.h > index 7116abc1a04e..8b325bf6cef4 100644 > --- a/include/drm/drm_drv.h > +++ b/include/drm/drm_drv.h > @@ -36,10 +36,12 @@ struct d...

...ast + 1); 258 err = -ENOMEM; 259 goto err_map; 260 } 261 sg_set_page(sg, pg, sglen, 0); 262 sg = sg_next(sg); 263 if (!sg) 264 goto done; 265 } 266 } 267 done: 268 mr->log_size = log_entity_size; 269 mr->nsg = nsg; 270 ret = dma_map_sg_attrs(dma, mr->sg_head.sgl, mr->nsg, DMA_BIDIRECTIONAL, 0); 271 if (!ret) 272 goto err_map; 273 274 err = create_direct_mr(mvdev, mr); 275 if (err) 276 goto err_direct; 277 278 return 0; 279 280 err_direct: 281 dma_unmap_sg_attrs(dma, mr->sg_head.sgl,...

...VAL); - if (obj->funcs) + if (obj->funcs && obj->funcs->get_sg_table) sgt = obj->funcs->get_sg_table(obj); - else - sgt = obj->dev->driver->gem_prime_get_sg_table(obj); + + if (!sgt) + return ERR_PTR(-EINVAL); + else if (IS_ERR(sgt)) + return sgt; if (!dma_map_sg_attrs(attach->dev, sgt->sgl, sgt->nents, dir, DMA_ATTR_SKIP_CPU_SYNC)) { diff --git a/include/drm/drm_drv.h b/include/drm/drm_drv.h index 7116abc1a04e..8b325bf6cef4 100644 --- a/include/drm/drm_drv.h +++ b/include/drm/drm_drv.h @@ -36,10 +36,12 @@ struct drm_file; struct drm_gem_objec...

...VAL); - if (obj->funcs) + if (obj->funcs && obj->funcs->get_sg_table) sgt = obj->funcs->get_sg_table(obj); - else - sgt = obj->dev->driver->gem_prime_get_sg_table(obj); + + if (!sgt) + return ERR_PTR(-EINVAL); + else if (IS_ERR(sgt)) + return sgt; if (!dma_map_sg_attrs(attach->dev, sgt->sgl, sgt->nents, dir, DMA_ATTR_SKIP_CPU_SYNC)) { diff --git a/include/drm/drm_drv.h b/include/drm/drm_drv.h index 9b11a2f0babc..240b0eab8018 100644 --- a/include/drm/drm_drv.h +++ b/include/drm/drm_drv.h @@ -36,10 +36,12 @@ struct drm_file; struct drm_gem_objec...

...mmon.h: At top level: include/asm-generic/dma-mapping-common.h:43: warning: 'enum dma_data_direction' declared inside parameter list include/asm-generic/dma-mapping-common.h:42: error: parameter 4 ('dir') has incomplete type include/asm-generic/dma-mapping-common.h: In function 'dma_map_sg_attrs': include/asm-generic/dma-mapping-common.h:52: error: dereferencing pointer to incomplete type include/asm-generic/dma-mapping-common.h: At top level: include/asm-generic/dma-mapping-common.h:60: warning: 'enum dma_data_direction' declared inside parameter list include/asm-generic/dma-m...

On 09/02/09 01:10, Mitchell E Berger wrote: > I apologize for writing to you directly instead of through an officially > supported channel. No problem. > I''ve filed a bug against glibc in Redhat''s Bugzilla > for an issue that only seems to surface on 64-bit Xen paravirt guests > on AMD hosts. Filing this bug with the distro involved seemed to make > sense,

Hi, This is third approach (complete this time) for replacing struct dma_attrs with unsigned long. The main patch (2/45) doing the change is split into many subpatches for easier review (3-43). They should be squashed together when applying. *Important:* Patchset is *only* build tested on allyesconfigs: ARM, ARM64, i386, x86_64 and powerpc. Please provide reviewes and tests for other

Hi all, Here''s a work in progress series whcih does a partial revert of the previous swiotlb changes, and does a partial replacement with Becky Bruce''s series. The most important difference is Becky''s use of phys_addr_t rather than page+offset to represent arbitrary pages. This turns out to be simpler. I didn''t replicate the map_single_page changes, since

The GEM and PRIME related callbacks in struct drm_driver are deprecated in favor of GEM object functions in struct drm_gem_object_funcs. This patchset converts the remaining drivers to object functions and removes most of the obsolete interfaces. Patches #1 to #18 convert DRM drivers to GEM object functions, one by one. Each patch moves existing callbacks from struct drm_driver to an instance of

The GEM and PRIME related callbacks in struct drm_driver are deprecated in favor of GEM object functions in struct drm_gem_object_funcs. This patchset converts the remaining drivers to object functions and removes most of the obsolete interfaces. Patches #1 to #16 and #18 to #19 convert DRM drivers to GEM object functions, one by one. Each patch moves existing callbacks from struct drm_driver to

## About DMA APIs Now, virtio may can not work with DMA APIs when virtio features do not have VIRTIO_F_ACCESS_PLATFORM. 1. I tried to let DMA APIs return phy address by virtio-device. But DMA APIs just work with the "real" devices. 2. I tried to let xsk support callballs to get phy address from virtio-net driver as the dma address. But the maintainers of xsk may want to use

## About DMA APIs Now, virtio may can not work with DMA APIs when virtio features do not have VIRTIO_F_ACCESS_PLATFORM. 1. I tried to let DMA APIs return phy address by virtio-device. But DMA APIs just work with the "real" devices. 2. I tried to let xsk support callballs to get phy address from virtio-net driver as the dma address. But the maintainers of xsk may want to use