Hi Marek, Thanks! On 20 April 2017 at 13:36, Marek Szyprowski <m.szyprowski@xxxxxxxxxxx> wrote: > Hi All, > > On 2017-04-20 09:51, Daniel Vetter wrote: >> >> On Wed, Apr 19, 2017 at 01:36:10PM -0600, Logan Gunthorpe wrote: >>> >>> Seeing the kunmap_atomic dma_buf_ops share the same name with a macro >>> in highmem.h, the former can be aliased if any dma-buf user includes >>> that header. >>> >>> I'm personally trying to include highmem.h inside scatterlist.h and this >>> breaks the dma-buf code proper. >>> >>> Christoph Hellwig suggested [1] renaming it and pushing this patch ASAP. >>> >>> To maintain consistency I've renamed all four of kmap* and kunmap* to be >>> map* and unmap*. (Even though only kmap_atomic presently conflicts.) >>> >>> [1] https://www.spinics.net/lists/target-devel/msg15070.html >>> >>> Signed-off-by: Logan Gunthorpe <logang@xxxxxxxxxxxx> >>> Reviewed-by: Sinclair Yeh <syeh@xxxxxxxxxx> >> >> Acked-by: Daniel Vetter <daniel.vetter@xxxxxxxx> >> >> Probably simplest if we pull this in through the drm-misc tree for 4.12. >> Can we have an ack for the v4l side for that pls? > > > For the V4L2/videobuf2: > Acked-by: Marek Szyprowski <m.szyprowski@xxxxxxxxxxx> > I will queue it up for drm-misc-fixes so it gets into 4.12. > > >> Thanks, Daniel Best, Sumit. >>> >>> --- >>> >>> Changes since v1: >>> >>> - Added the missing tegra driver (noticed by kbuild robot) >>> - Rebased off of drm-intel-next to get the i915 selftest that is new >>> - Fixed nits Sinclair pointed out. >>> >>> drivers/dma-buf/dma-buf.c | 16 ++++++++-------- >>> drivers/gpu/drm/armada/armada_gem.c | 8 ++++---- >>> drivers/gpu/drm/drm_prime.c | 8 ++++---- >>> drivers/gpu/drm/i915/i915_gem_dmabuf.c | 8 ++++---- >>> drivers/gpu/drm/i915/selftests/mock_dmabuf.c | 8 ++++---- >>> drivers/gpu/drm/omapdrm/omap_gem_dmabuf.c | 8 ++++---- >>> drivers/gpu/drm/tegra/gem.c | 8 ++++---- >>> drivers/gpu/drm/udl/udl_dmabuf.c | 8 ++++---- >>> drivers/gpu/drm/vmwgfx/vmwgfx_prime.c | 8 ++++---- >>> drivers/media/v4l2-core/videobuf2-dma-contig.c | 4 ++-- >>> drivers/media/v4l2-core/videobuf2-dma-sg.c | 4 ++-- >>> drivers/media/v4l2-core/videobuf2-vmalloc.c | 4 ++-- >>> drivers/staging/android/ion/ion.c | 8 ++++---- >>> include/linux/dma-buf.h | 22 >>> +++++++++++----------- >>> 14 files changed, 61 insertions(+), 61 deletions(-) >>> >>> diff --git a/drivers/dma-buf/dma-buf.c b/drivers/dma-buf/dma-buf.c >>> index f72aaac..512bdbc 100644 >>> --- a/drivers/dma-buf/dma-buf.c >>> +++ b/drivers/dma-buf/dma-buf.c >>> @@ -405,8 +405,8 @@ struct dma_buf *dma_buf_export(const struct >>> dma_buf_export_info *exp_info) >>> || !exp_info->ops->map_dma_buf >>> || !exp_info->ops->unmap_dma_buf >>> || !exp_info->ops->release >>> - || !exp_info->ops->kmap_atomic >>> - || !exp_info->ops->kmap >>> + || !exp_info->ops->map_atomic >>> + || !exp_info->ops->map >>> || !exp_info->ops->mmap)) { >>> return ERR_PTR(-EINVAL); >>> } >>> @@ -872,7 +872,7 @@ void *dma_buf_kmap_atomic(struct dma_buf *dmabuf, >>> unsigned long page_num) >>> { >>> WARN_ON(!dmabuf); >>> >>> - return dmabuf->ops->kmap_atomic(dmabuf, page_num); >>> + return dmabuf->ops->map_atomic(dmabuf, page_num); >>> } >>> EXPORT_SYMBOL_GPL(dma_buf_kmap_atomic); >>> >>> @@ -889,8 +889,8 @@ void dma_buf_kunmap_atomic(struct dma_buf *dmabuf, >>> unsigned long page_num, >>> { >>> WARN_ON(!dmabuf); >>> >>> - if (dmabuf->ops->kunmap_atomic) >>> - dmabuf->ops->kunmap_atomic(dmabuf, page_num, vaddr); >>> + if (dmabuf->ops->unmap_atomic) >>> + dmabuf->ops->unmap_atomic(dmabuf, page_num, vaddr); >>> } >>> EXPORT_SYMBOL_GPL(dma_buf_kunmap_atomic); >>> >>> @@ -907,7 +907,7 @@ void *dma_buf_kmap(struct dma_buf *dmabuf, unsigned >>> long page_num) >>> { >>> WARN_ON(!dmabuf); >>> >>> - return dmabuf->ops->kmap(dmabuf, page_num); >>> + return dmabuf->ops->map(dmabuf, page_num); >>> } >>> EXPORT_SYMBOL_GPL(dma_buf_kmap); >>> >>> @@ -924,8 +924,8 @@ void dma_buf_kunmap(struct dma_buf *dmabuf, unsigned >>> long page_num, >>> { >>> WARN_ON(!dmabuf); >>> >>> - if (dmabuf->ops->kunmap) >>> - dmabuf->ops->kunmap(dmabuf, page_num, vaddr); >>> + if (dmabuf->ops->unmap) >>> + dmabuf->ops->unmap(dmabuf, page_num, vaddr); >>> } >>> EXPORT_SYMBOL_GPL(dma_buf_kunmap); >>> >>> diff --git a/drivers/gpu/drm/armada/armada_gem.c >>> b/drivers/gpu/drm/armada/armada_gem.c >>> index 1597458..d6c2a5d 100644 >>> --- a/drivers/gpu/drm/armada/armada_gem.c >>> +++ b/drivers/gpu/drm/armada/armada_gem.c >>> @@ -529,10 +529,10 @@ static const struct dma_buf_ops >>> armada_gem_prime_dmabuf_ops = { >>> .map_dma_buf = armada_gem_prime_map_dma_buf, >>> .unmap_dma_buf = armada_gem_prime_unmap_dma_buf, >>> .release = drm_gem_dmabuf_release, >>> - .kmap_atomic = armada_gem_dmabuf_no_kmap, >>> - .kunmap_atomic = armada_gem_dmabuf_no_kunmap, >>> - .kmap = armada_gem_dmabuf_no_kmap, >>> - .kunmap = armada_gem_dmabuf_no_kunmap, >>> + .map_atomic = armada_gem_dmabuf_no_kmap, >>> + .unmap_atomic = armada_gem_dmabuf_no_kunmap, >>> + .map = armada_gem_dmabuf_no_kmap, >>> + .unmap = armada_gem_dmabuf_no_kunmap, >>> .mmap = armada_gem_dmabuf_mmap, >>> }; >>> >>> diff --git a/drivers/gpu/drm/drm_prime.c b/drivers/gpu/drm/drm_prime.c >>> index 9fb65b7..954eb84 100644 >>> --- a/drivers/gpu/drm/drm_prime.c >>> +++ b/drivers/gpu/drm/drm_prime.c >>> @@ -403,10 +403,10 @@ static const struct dma_buf_ops >>> drm_gem_prime_dmabuf_ops = { >>> .map_dma_buf = drm_gem_map_dma_buf, >>> .unmap_dma_buf = drm_gem_unmap_dma_buf, >>> .release = drm_gem_dmabuf_release, >>> - .kmap = drm_gem_dmabuf_kmap, >>> - .kmap_atomic = drm_gem_dmabuf_kmap_atomic, >>> - .kunmap = drm_gem_dmabuf_kunmap, >>> - .kunmap_atomic = drm_gem_dmabuf_kunmap_atomic, >>> + .map = drm_gem_dmabuf_kmap, >>> + .map_atomic = drm_gem_dmabuf_kmap_atomic, >>> + .unmap = drm_gem_dmabuf_kunmap, >>> + .unmap_atomic = drm_gem_dmabuf_kunmap_atomic, >>> .mmap = drm_gem_dmabuf_mmap, >>> .vmap = drm_gem_dmabuf_vmap, >>> .vunmap = drm_gem_dmabuf_vunmap, >>> diff --git a/drivers/gpu/drm/i915/i915_gem_dmabuf.c >>> b/drivers/gpu/drm/i915/i915_gem_dmabuf.c >>> index 11898cd..f225bf6 100644 >>> --- a/drivers/gpu/drm/i915/i915_gem_dmabuf.c >>> +++ b/drivers/gpu/drm/i915/i915_gem_dmabuf.c >>> @@ -200,10 +200,10 @@ static const struct dma_buf_ops i915_dmabuf_ops = >>> { >>> .map_dma_buf = i915_gem_map_dma_buf, >>> .unmap_dma_buf = i915_gem_unmap_dma_buf, >>> .release = drm_gem_dmabuf_release, >>> - .kmap = i915_gem_dmabuf_kmap, >>> - .kmap_atomic = i915_gem_dmabuf_kmap_atomic, >>> - .kunmap = i915_gem_dmabuf_kunmap, >>> - .kunmap_atomic = i915_gem_dmabuf_kunmap_atomic, >>> + .map = i915_gem_dmabuf_kmap, >>> + .map_atomic = i915_gem_dmabuf_kmap_atomic, >>> + .unmap = i915_gem_dmabuf_kunmap, >>> + .unmap_atomic = i915_gem_dmabuf_kunmap_atomic, >>> .mmap = i915_gem_dmabuf_mmap, >>> .vmap = i915_gem_dmabuf_vmap, >>> .vunmap = i915_gem_dmabuf_vunmap, >>> diff --git a/drivers/gpu/drm/i915/selftests/mock_dmabuf.c >>> b/drivers/gpu/drm/i915/selftests/mock_dmabuf.c >>> index 99da8f4..302f7d1 100644 >>> --- a/drivers/gpu/drm/i915/selftests/mock_dmabuf.c >>> +++ b/drivers/gpu/drm/i915/selftests/mock_dmabuf.c >>> @@ -129,10 +129,10 @@ static const struct dma_buf_ops mock_dmabuf_ops = >>> { >>> .map_dma_buf = mock_map_dma_buf, >>> .unmap_dma_buf = mock_unmap_dma_buf, >>> .release = mock_dmabuf_release, >>> - .kmap = mock_dmabuf_kmap, >>> - .kmap_atomic = mock_dmabuf_kmap_atomic, >>> - .kunmap = mock_dmabuf_kunmap, >>> - .kunmap_atomic = mock_dmabuf_kunmap_atomic, >>> + .map = mock_dmabuf_kmap, >>> + .map_atomic = mock_dmabuf_kmap_atomic, >>> + .unmap = mock_dmabuf_kunmap, >>> + .unmap_atomic = mock_dmabuf_kunmap_atomic, >>> .mmap = mock_dmabuf_mmap, >>> .vmap = mock_dmabuf_vmap, >>> .vunmap = mock_dmabuf_vunmap, >>> diff --git a/drivers/gpu/drm/omapdrm/omap_gem_dmabuf.c >>> b/drivers/gpu/drm/omapdrm/omap_gem_dmabuf.c >>> index ee5883f..0dbe030 100644 >>> --- a/drivers/gpu/drm/omapdrm/omap_gem_dmabuf.c >>> +++ b/drivers/gpu/drm/omapdrm/omap_gem_dmabuf.c >>> @@ -160,10 +160,10 @@ static struct dma_buf_ops omap_dmabuf_ops = { >>> .release = omap_gem_dmabuf_release, >>> .begin_cpu_access = omap_gem_dmabuf_begin_cpu_access, >>> .end_cpu_access = omap_gem_dmabuf_end_cpu_access, >>> - .kmap_atomic = omap_gem_dmabuf_kmap_atomic, >>> - .kunmap_atomic = omap_gem_dmabuf_kunmap_atomic, >>> - .kmap = omap_gem_dmabuf_kmap, >>> - .kunmap = omap_gem_dmabuf_kunmap, >>> + .map_atomic = omap_gem_dmabuf_kmap_atomic, >>> + .unmap_atomic = omap_gem_dmabuf_kunmap_atomic, >>> + .map = omap_gem_dmabuf_kmap, >>> + .unmap = omap_gem_dmabuf_kunmap, >>> .mmap = omap_gem_dmabuf_mmap, >>> }; >>> >>> diff --git a/drivers/gpu/drm/tegra/gem.c b/drivers/gpu/drm/tegra/gem.c >>> index 17e62ec..8672f5d 100644 >>> --- a/drivers/gpu/drm/tegra/gem.c >>> +++ b/drivers/gpu/drm/tegra/gem.c >>> @@ -619,10 +619,10 @@ static const struct dma_buf_ops >>> tegra_gem_prime_dmabuf_ops = { >>> .map_dma_buf = tegra_gem_prime_map_dma_buf, >>> .unmap_dma_buf = tegra_gem_prime_unmap_dma_buf, >>> .release = tegra_gem_prime_release, >>> - .kmap_atomic = tegra_gem_prime_kmap_atomic, >>> - .kunmap_atomic = tegra_gem_prime_kunmap_atomic, >>> - .kmap = tegra_gem_prime_kmap, >>> - .kunmap = tegra_gem_prime_kunmap, >>> + .map_atomic = tegra_gem_prime_kmap_atomic, >>> + .unmap_atomic = tegra_gem_prime_kunmap_atomic, >>> + .map = tegra_gem_prime_kmap, >>> + .unmap = tegra_gem_prime_kunmap, >>> .mmap = tegra_gem_prime_mmap, >>> .vmap = tegra_gem_prime_vmap, >>> .vunmap = tegra_gem_prime_vunmap, >>> diff --git a/drivers/gpu/drm/udl/udl_dmabuf.c >>> b/drivers/gpu/drm/udl/udl_dmabuf.c >>> index ac90ffd..ed0e636 100644 >>> --- a/drivers/gpu/drm/udl/udl_dmabuf.c >>> +++ b/drivers/gpu/drm/udl/udl_dmabuf.c >>> @@ -191,10 +191,10 @@ static struct dma_buf_ops udl_dmabuf_ops = { >>> .detach = udl_detach_dma_buf, >>> .map_dma_buf = udl_map_dma_buf, >>> .unmap_dma_buf = udl_unmap_dma_buf, >>> - .kmap = udl_dmabuf_kmap, >>> - .kmap_atomic = udl_dmabuf_kmap_atomic, >>> - .kunmap = udl_dmabuf_kunmap, >>> - .kunmap_atomic = udl_dmabuf_kunmap_atomic, >>> + .map = udl_dmabuf_kmap, >>> + .map_atomic = udl_dmabuf_kmap_atomic, >>> + .unmap = udl_dmabuf_kunmap, >>> + .unmap_atomic = udl_dmabuf_kunmap_atomic, >>> .mmap = udl_dmabuf_mmap, >>> .release = drm_gem_dmabuf_release, >>> }; >>> diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_prime.c >>> b/drivers/gpu/drm/vmwgfx/vmwgfx_prime.c >>> index 31fe32d..0d42a46 100644 >>> --- a/drivers/gpu/drm/vmwgfx/vmwgfx_prime.c >>> +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_prime.c >>> @@ -108,10 +108,10 @@ const struct dma_buf_ops vmw_prime_dmabuf_ops = { >>> .map_dma_buf = vmw_prime_map_dma_buf, >>> .unmap_dma_buf = vmw_prime_unmap_dma_buf, >>> .release = NULL, >>> - .kmap = vmw_prime_dmabuf_kmap, >>> - .kmap_atomic = vmw_prime_dmabuf_kmap_atomic, >>> - .kunmap = vmw_prime_dmabuf_kunmap, >>> - .kunmap_atomic = vmw_prime_dmabuf_kunmap_atomic, >>> + .map = vmw_prime_dmabuf_kmap, >>> + .map_atomic = vmw_prime_dmabuf_kmap_atomic, >>> + .unmap = vmw_prime_dmabuf_kunmap, >>> + .unmap_atomic = vmw_prime_dmabuf_kunmap_atomic, >>> .mmap = vmw_prime_dmabuf_mmap, >>> .vmap = vmw_prime_dmabuf_vmap, >>> .vunmap = vmw_prime_dmabuf_vunmap, >>> diff --git a/drivers/media/v4l2-core/videobuf2-dma-contig.c >>> b/drivers/media/v4l2-core/videobuf2-dma-contig.c >>> index fb6a177..2db0413 100644 >>> --- a/drivers/media/v4l2-core/videobuf2-dma-contig.c >>> +++ b/drivers/media/v4l2-core/videobuf2-dma-contig.c >>> @@ -356,8 +356,8 @@ static struct dma_buf_ops vb2_dc_dmabuf_ops = { >>> .detach = vb2_dc_dmabuf_ops_detach, >>> .map_dma_buf = vb2_dc_dmabuf_ops_map, >>> .unmap_dma_buf = vb2_dc_dmabuf_ops_unmap, >>> - .kmap = vb2_dc_dmabuf_ops_kmap, >>> - .kmap_atomic = vb2_dc_dmabuf_ops_kmap, >>> + .map = vb2_dc_dmabuf_ops_kmap, >>> + .map_atomic = vb2_dc_dmabuf_ops_kmap, >>> .vmap = vb2_dc_dmabuf_ops_vmap, >>> .mmap = vb2_dc_dmabuf_ops_mmap, >>> .release = vb2_dc_dmabuf_ops_release, >>> diff --git a/drivers/media/v4l2-core/videobuf2-dma-sg.c >>> b/drivers/media/v4l2-core/videobuf2-dma-sg.c >>> index ecff8f4..6fd1343 100644 >>> --- a/drivers/media/v4l2-core/videobuf2-dma-sg.c >>> +++ b/drivers/media/v4l2-core/videobuf2-dma-sg.c >>> @@ -504,8 +504,8 @@ static struct dma_buf_ops vb2_dma_sg_dmabuf_ops = { >>> .detach = vb2_dma_sg_dmabuf_ops_detach, >>> .map_dma_buf = vb2_dma_sg_dmabuf_ops_map, >>> .unmap_dma_buf = vb2_dma_sg_dmabuf_ops_unmap, >>> - .kmap = vb2_dma_sg_dmabuf_ops_kmap, >>> - .kmap_atomic = vb2_dma_sg_dmabuf_ops_kmap, >>> + .map = vb2_dma_sg_dmabuf_ops_kmap, >>> + .map_atomic = vb2_dma_sg_dmabuf_ops_kmap, >>> .vmap = vb2_dma_sg_dmabuf_ops_vmap, >>> .mmap = vb2_dma_sg_dmabuf_ops_mmap, >>> .release = vb2_dma_sg_dmabuf_ops_release, >>> diff --git a/drivers/media/v4l2-core/videobuf2-vmalloc.c >>> b/drivers/media/v4l2-core/videobuf2-vmalloc.c >>> index 3f77814..27d1db3 100644 >>> --- a/drivers/media/v4l2-core/videobuf2-vmalloc.c >>> +++ b/drivers/media/v4l2-core/videobuf2-vmalloc.c >>> @@ -342,8 +342,8 @@ static struct dma_buf_ops vb2_vmalloc_dmabuf_ops = { >>> .detach = vb2_vmalloc_dmabuf_ops_detach, >>> .map_dma_buf = vb2_vmalloc_dmabuf_ops_map, >>> .unmap_dma_buf = vb2_vmalloc_dmabuf_ops_unmap, >>> - .kmap = vb2_vmalloc_dmabuf_ops_kmap, >>> - .kmap_atomic = vb2_vmalloc_dmabuf_ops_kmap, >>> + .map = vb2_vmalloc_dmabuf_ops_kmap, >>> + .map_atomic = vb2_vmalloc_dmabuf_ops_kmap, >>> .vmap = vb2_vmalloc_dmabuf_ops_vmap, >>> .mmap = vb2_vmalloc_dmabuf_ops_mmap, >>> .release = vb2_vmalloc_dmabuf_ops_release, >>> diff --git a/drivers/staging/android/ion/ion.c >>> b/drivers/staging/android/ion/ion.c >>> index f45115f..95a7f16 100644 >>> --- a/drivers/staging/android/ion/ion.c >>> +++ b/drivers/staging/android/ion/ion.c >>> @@ -1020,10 +1020,10 @@ static const struct dma_buf_ops dma_buf_ops = { >>> .release = ion_dma_buf_release, >>> .begin_cpu_access = ion_dma_buf_begin_cpu_access, >>> .end_cpu_access = ion_dma_buf_end_cpu_access, >>> - .kmap_atomic = ion_dma_buf_kmap, >>> - .kunmap_atomic = ion_dma_buf_kunmap, >>> - .kmap = ion_dma_buf_kmap, >>> - .kunmap = ion_dma_buf_kunmap, >>> + .map_atomic = ion_dma_buf_kmap, >>> + .unmap_atomic = ion_dma_buf_kunmap, >>> + .map = ion_dma_buf_kmap, >>> + .unmap = ion_dma_buf_kunmap, >>> }; >>> >>> struct dma_buf *ion_share_dma_buf(struct ion_client *client, >>> diff --git a/include/linux/dma-buf.h b/include/linux/dma-buf.h >>> index bfb3704..79f27d6 100644 >>> --- a/include/linux/dma-buf.h >>> +++ b/include/linux/dma-buf.h >>> @@ -39,13 +39,13 @@ struct dma_buf_attachment; >>> >>> /** >>> * struct dma_buf_ops - operations possible on struct dma_buf >>> - * @kmap_atomic: maps a page from the buffer into kernel address >>> - * space, users may not block until the subsequent unmap >>> call. >>> - * This callback must not sleep. >>> - * @kunmap_atomic: [optional] unmaps a atomically mapped page from the >>> buffer. >>> - * This Callback must not sleep. >>> - * @kmap: maps a page from the buffer into kernel address space. >>> - * @kunmap: [optional] unmaps a page from the buffer. >>> + * @map_atomic: maps a page from the buffer into kernel address >>> + * space, users may not block until the subsequent unmap >>> call. >>> + * This callback must not sleep. >>> + * @unmap_atomic: [optional] unmaps a atomically mapped page from the >>> buffer. >>> + * This Callback must not sleep. >>> + * @map: maps a page from the buffer into kernel address space. >>> + * @unmap: [optional] unmaps a page from the buffer. >>> * @vmap: [optional] creates a virtual mapping for the buffer into >>> kernel >>> * address space. Same restrictions as for vmap and friends apply. >>> * @vunmap: [optional] unmaps a vmap from the buffer >>> @@ -206,10 +206,10 @@ struct dma_buf_ops { >>> * to be restarted. >>> */ >>> int (*end_cpu_access)(struct dma_buf *, enum dma_data_direction); >>> - void *(*kmap_atomic)(struct dma_buf *, unsigned long); >>> - void (*kunmap_atomic)(struct dma_buf *, unsigned long, void *); >>> - void *(*kmap)(struct dma_buf *, unsigned long); >>> - void (*kunmap)(struct dma_buf *, unsigned long, void *); >>> + void *(*map_atomic)(struct dma_buf *, unsigned long); >>> + void (*unmap_atomic)(struct dma_buf *, unsigned long, void *); >>> + void *(*map)(struct dma_buf *, unsigned long); >>> + void (*unmap)(struct dma_buf *, unsigned long, void *); >>> >>> /** >>> * @mmap: > > > Best regards > -- > Marek Szyprowski, PhD > Samsung R&D Institute Poland > -- Thanks and regards, Sumit Semwal Linaro Mobile Group - Kernel Team Lead Linaro.org │ Open source software for ARM SoCs _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
