On Fri, Apr 26, 2019 at 02:36:27PM +0200, Christian König wrote:
> Add a structure for the parameters of dma_buf_attach, this makes it much easier
> to add new parameters later on.
>
> Signed-off-by: Christian König <christian.koenig@xxxxxxx>
> ---
> drivers/dma-buf/dma-buf.c | 13 +++++++------
> drivers/gpu/drm/armada/armada_gem.c | 6 +++++-
> drivers/gpu/drm/drm_prime.c | 6 +++++-
> drivers/gpu/drm/i915/i915_gem_dmabuf.c | 6 +++++-
omapdrm seems to be missing.
> drivers/gpu/drm/tegra/gem.c | 6 +++++-
> drivers/gpu/drm/udl/udl_dmabuf.c | 6 +++++-
> .../common/videobuf2/videobuf2-dma-contig.c | 6 +++++-
> .../media/common/videobuf2/videobuf2-dma-sg.c | 6 +++++-
videobuf2-dma-sg seems to be missing.
> drivers/staging/media/tegra-vde/tegra-vde.c | 6 +++++-
fastrpc and gntdev-dmabuf also missing.
I guess all just rebase fallout. With those all compiling:
Reviewed-by: Daniel Vetter <daniel.vetter@xxxxxxxx>
Would also be good to cc: everyone on the next round per
get_mainteiners.pl for this patch.
-Daniel
> include/linux/dma-buf.h | 17 +++++++++++++++--
> 10 files changed, 62 insertions(+), 16 deletions(-)
>
> diff --git a/drivers/dma-buf/dma-buf.c b/drivers/dma-buf/dma-buf.c
> index 7c858020d14b..50b4c6af04c7 100644
> --- a/drivers/dma-buf/dma-buf.c
> +++ b/drivers/dma-buf/dma-buf.c
> @@ -532,8 +532,9 @@ EXPORT_SYMBOL_GPL(dma_buf_put);
> /**
> * dma_buf_attach - Add the device to dma_buf's attachments list; optionally,
> * calls attach() of dma_buf_ops to allow device-specific attach functionality
> - * @dmabuf: [in] buffer to attach device to.
> - * @dev: [in] device to be attached.
> + * @info: [in] holds all the attach related information provided
> + * by the importer. see &struct dma_buf_attach_info
> + * for further details.
> *
> * Returns struct dma_buf_attachment pointer for this attachment. Attachments
> * must be cleaned up by calling dma_buf_detach().
> @@ -547,20 +548,20 @@ EXPORT_SYMBOL_GPL(dma_buf_put);
> * accessible to @dev, and cannot be moved to a more suitable place. This is
> * indicated with the error code -EBUSY.
> */
> -struct dma_buf_attachment *dma_buf_attach(struct dma_buf *dmabuf,
> - struct device *dev)
> +struct dma_buf_attachment *dma_buf_attach(const struct dma_buf_attach_info *info)
> {
> + struct dma_buf *dmabuf = info->dmabuf;
> struct dma_buf_attachment *attach;
> int ret;
>
> - if (WARN_ON(!dmabuf || !dev))
> + if (WARN_ON(!dmabuf || !info->dev))
> return ERR_PTR(-EINVAL);
>
> attach = kzalloc(sizeof(*attach), GFP_KERNEL);
> if (!attach)
> return ERR_PTR(-ENOMEM);
>
> - attach->dev = dev;
> + attach->dev = info->dev;
> attach->dmabuf = dmabuf;
>
> mutex_lock(&dmabuf->lock);
> diff --git a/drivers/gpu/drm/armada/armada_gem.c b/drivers/gpu/drm/armada/armada_gem.c
> index 642d0e70d0f8..19c47821032f 100644
> --- a/drivers/gpu/drm/armada/armada_gem.c
> +++ b/drivers/gpu/drm/armada/armada_gem.c
> @@ -501,6 +501,10 @@ armada_gem_prime_export(struct drm_device *dev, struct drm_gem_object *obj,
> struct drm_gem_object *
> armada_gem_prime_import(struct drm_device *dev, struct dma_buf *buf)
> {
> + struct dma_buf_attach_info attach_info = {
> + .dev = dev->dev,
> + .dmabuf = buf
> + };
> struct dma_buf_attachment *attach;
> struct armada_gem_object *dobj;
>
> @@ -516,7 +520,7 @@ armada_gem_prime_import(struct drm_device *dev, struct dma_buf *buf)
> }
> }
>
> - attach = dma_buf_attach(buf, dev->dev);
> + attach = dma_buf_attach(&attach_info);
> if (IS_ERR(attach))
> return ERR_CAST(attach);
>
> diff --git a/drivers/gpu/drm/drm_prime.c b/drivers/gpu/drm/drm_prime.c
> index 231e3f6d5f41..1fadf5d5ed33 100644
> --- a/drivers/gpu/drm/drm_prime.c
> +++ b/drivers/gpu/drm/drm_prime.c
> @@ -709,6 +709,10 @@ struct drm_gem_object *drm_gem_prime_import_dev(struct drm_device *dev,
> struct dma_buf *dma_buf,
> struct device *attach_dev)
> {
> + struct dma_buf_attach_info attach_info = {
> + .dev = attach_dev,
> + .dmabuf = dma_buf
> + };
> struct dma_buf_attachment *attach;
> struct sg_table *sgt;
> struct drm_gem_object *obj;
> @@ -729,7 +733,7 @@ struct drm_gem_object *drm_gem_prime_import_dev(struct drm_device *dev,
> if (!dev->driver->gem_prime_import_sg_table)
> return ERR_PTR(-EINVAL);
>
> - attach = dma_buf_attach(dma_buf, attach_dev);
> + attach = dma_buf_attach(&attach_info);
> if (IS_ERR(attach))
> return ERR_CAST(attach);
>
> diff --git a/drivers/gpu/drm/i915/i915_gem_dmabuf.c b/drivers/gpu/drm/i915/i915_gem_dmabuf.c
> index 82e2ca17a441..aa7f685bd6ca 100644
> --- a/drivers/gpu/drm/i915/i915_gem_dmabuf.c
> +++ b/drivers/gpu/drm/i915/i915_gem_dmabuf.c
> @@ -277,6 +277,10 @@ static const struct drm_i915_gem_object_ops i915_gem_object_dmabuf_ops = {
> struct drm_gem_object *i915_gem_prime_import(struct drm_device *dev,
> struct dma_buf *dma_buf)
> {
> + struct dma_buf_attach_info attach_info = {
> + .dev = dev->dev,
> + .dmabuf = dma_buf
> + };
> struct dma_buf_attachment *attach;
> struct drm_i915_gem_object *obj;
> int ret;
> @@ -295,7 +299,7 @@ struct drm_gem_object *i915_gem_prime_import(struct drm_device *dev,
> }
>
> /* need to attach */
> - attach = dma_buf_attach(dma_buf, dev->dev);
> + attach = dma_buf_attach(&attach_info);
> if (IS_ERR(attach))
> return ERR_CAST(attach);
>
> diff --git a/drivers/gpu/drm/tegra/gem.c b/drivers/gpu/drm/tegra/gem.c
> index 4f80100ff5f3..8e6b6c879add 100644
> --- a/drivers/gpu/drm/tegra/gem.c
> +++ b/drivers/gpu/drm/tegra/gem.c
> @@ -332,6 +332,10 @@ struct tegra_bo *tegra_bo_create_with_handle(struct drm_file *file,
> static struct tegra_bo *tegra_bo_import(struct drm_device *drm,
> struct dma_buf *buf)
> {
> + struct dma_buf_attach_info attach_info = {
> + .dev = drm->dev,
> + .dmabuf = buf
> + };
> struct tegra_drm *tegra = drm->dev_private;
> struct dma_buf_attachment *attach;
> struct tegra_bo *bo;
> @@ -341,7 +345,7 @@ static struct tegra_bo *tegra_bo_import(struct drm_device *drm,
> if (IS_ERR(bo))
> return bo;
>
> - attach = dma_buf_attach(buf, drm->dev);
> + attach = dma_buf_attach(&attach_info);
> if (IS_ERR(attach)) {
> err = PTR_ERR(attach);
> goto free;
> diff --git a/drivers/gpu/drm/udl/udl_dmabuf.c b/drivers/gpu/drm/udl/udl_dmabuf.c
> index 556f62662aa9..86b928f9742f 100644
> --- a/drivers/gpu/drm/udl/udl_dmabuf.c
> +++ b/drivers/gpu/drm/udl/udl_dmabuf.c
> @@ -226,6 +226,10 @@ static int udl_prime_create(struct drm_device *dev,
> struct drm_gem_object *udl_gem_prime_import(struct drm_device *dev,
> struct dma_buf *dma_buf)
> {
> + struct dma_buf_attach_info attach_info = {
> + .dev = dev->dev,
> + .dmabuf = dma_buf
> + };
> struct dma_buf_attachment *attach;
> struct sg_table *sg;
> struct udl_gem_object *uobj;
> @@ -233,7 +237,7 @@ struct drm_gem_object *udl_gem_prime_import(struct drm_device *dev,
>
> /* need to attach */
> get_device(dev->dev);
> - attach = dma_buf_attach(dma_buf, dev->dev);
> + attach = dma_buf_attach(&attach_info);
> if (IS_ERR(attach)) {
> put_device(dev->dev);
> return ERR_CAST(attach);
> diff --git a/drivers/media/common/videobuf2/videobuf2-dma-contig.c b/drivers/media/common/videobuf2/videobuf2-dma-contig.c
> index aff0ab7bf83d..1f2687b5eb0e 100644
> --- a/drivers/media/common/videobuf2/videobuf2-dma-contig.c
> +++ b/drivers/media/common/videobuf2/videobuf2-dma-contig.c
> @@ -676,6 +676,10 @@ static void vb2_dc_detach_dmabuf(void *mem_priv)
> static void *vb2_dc_attach_dmabuf(struct device *dev, struct dma_buf *dbuf,
> unsigned long size, enum dma_data_direction dma_dir)
> {
> + struct dma_buf_attach_info attach_info = {
> + .dev = dev,
> + .dmabuf = dbuf
> + };
> struct vb2_dc_buf *buf;
> struct dma_buf_attachment *dba;
>
> @@ -691,7 +695,7 @@ static void *vb2_dc_attach_dmabuf(struct device *dev, struct dma_buf *dbuf,
>
> buf->dev = dev;
> /* create attachment for the dmabuf with the user device */
> - dba = dma_buf_attach(dbuf, buf->dev);
> + dba = dma_buf_attach(&attach_info);
> if (IS_ERR(dba)) {
> pr_err("failed to attach dmabuf\n");
> kfree(buf);
> diff --git a/drivers/media/common/videobuf2/videobuf2-dma-sg.c b/drivers/media/common/videobuf2/videobuf2-dma-sg.c
> index 015e737095cd..cbd626d2393a 100644
> --- a/drivers/media/common/videobuf2/videobuf2-dma-sg.c
> +++ b/drivers/media/common/videobuf2/videobuf2-dma-sg.c
> @@ -608,6 +608,10 @@ static void vb2_dma_sg_detach_dmabuf(void *mem_priv)
> static void *vb2_dma_sg_attach_dmabuf(struct device *dev, struct dma_buf *dbuf,
> unsigned long size, enum dma_data_direction dma_dir)
> {
> + struct dma_buf_attach_info attach_info = {
> + .dev = dev,
> + .dmabuf = dbuf
> + };
> struct vb2_dma_sg_buf *buf;
> struct dma_buf_attachment *dba;
>
> @@ -623,7 +627,7 @@ static void *vb2_dma_sg_attach_dmabuf(struct device *dev, struct dma_buf *dbuf,
>
> buf->dev = dev;
> /* create attachment for the dmabuf with the user device */
> - dba = dma_buf_attach(dbuf, buf->dev);
> + dba = dma_buf_attach(&attach_info);
> if (IS_ERR(dba)) {
> pr_err("failed to attach dmabuf\n");
> kfree(buf);
> diff --git a/drivers/staging/media/tegra-vde/tegra-vde.c b/drivers/staging/media/tegra-vde/tegra-vde.c
> index aa6c6bba961e..5a10c1facc27 100644
> --- a/drivers/staging/media/tegra-vde/tegra-vde.c
> +++ b/drivers/staging/media/tegra-vde/tegra-vde.c
> @@ -568,6 +568,10 @@ static int tegra_vde_attach_dmabuf(struct device *dev,
> size_t *size,
> enum dma_data_direction dma_dir)
> {
> + struct dma_buf_attach_info attach_info = {
> + .dev = dev,
> + .dmabuf = dmabuf
> + };
> struct dma_buf_attachment *attachment;
> struct dma_buf *dmabuf;
> struct sg_table *sgt;
> @@ -591,7 +595,7 @@ static int tegra_vde_attach_dmabuf(struct device *dev,
> return -EINVAL;
> }
>
> - attachment = dma_buf_attach(dmabuf, dev);
> + attachment = dma_buf_attach(&attach_info);
> if (IS_ERR(attachment)) {
> dev_err(dev, "Failed to attach dmabuf\n");
> err = PTR_ERR(attachment);
> diff --git a/include/linux/dma-buf.h b/include/linux/dma-buf.h
> index 58725f890b5b..2c312dfd31a1 100644
> --- a/include/linux/dma-buf.h
> +++ b/include/linux/dma-buf.h
> @@ -359,6 +359,19 @@ struct dma_buf_export_info {
> struct dma_buf_export_info name = { .exp_name = KBUILD_MODNAME, \
> .owner = THIS_MODULE }
>
> +/**
> + * struct dma_buf_attach_info - holds information needed to attach to a dma_buf
> + * @dmabuf: the exported dma_buf
> + * @dev: the device which wants to import the attachment
> + *
> + * This structure holds the information required to attach to a buffer. Used
> + * with dma_buf_attach() only.
> + */
> +struct dma_buf_attach_info {
> + struct dma_buf *dmabuf;
> + struct device *dev;
> +};
> +
> /**
> * get_dma_buf - convenience wrapper for get_file.
> * @dmabuf: [in] pointer to dma_buf
> @@ -373,8 +386,8 @@ static inline void get_dma_buf(struct dma_buf *dmabuf)
> get_file(dmabuf->file);
> }
>
> -struct dma_buf_attachment *dma_buf_attach(struct dma_buf *dmabuf,
> - struct device *dev);
> +struct dma_buf_attachment *
> +dma_buf_attach(const struct dma_buf_attach_info *info);
> void dma_buf_detach(struct dma_buf *dmabuf,
> struct dma_buf_attachment *dmabuf_attach);
>
> --
> 2.17.1
>
> _______________________________________________
> dri-devel mailing list
> dri-devel@xxxxxxxxxxxxxxxxxxxxx
> https://lists.freedesktop.org/mailman/listinfo/dri-devel
--
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
_______________________________________________
dri-devel mailing list
dri-devel@xxxxxxxxxxxxxxxxxxxxx
https://lists.freedesktop.org/mailman/listinfo/dri-devel
