Reorder all the functions in drm_prime.[hc] into three groups: core,
export helpers, import helpers.
Not other changes beyond moving the functions and their unchanged
kerneldoc around in here.
Cc: Sam Ravnborg
Cc: Eric Anholt
Cc: Emil Velikov
Signed-off-by: Daniel Vetter
---
drivers/gpu/drm/drm_prime.c | 770 ++--
include/drm/drm_prime.h | 42 +-
2 files changed, 409 insertions(+), 403 deletions(-)
diff --git a/drivers/gpu/drm/drm_prime.c b/drivers/gpu/drm/drm_prime.c
index d0c01318076b..68b4de85370c 100644
--- a/drivers/gpu/drm/drm_prime.c
+++ b/drivers/gpu/drm/drm_prime.c
@@ -181,42 +181,6 @@ static int drm_prime_lookup_buf_handle(struct
drm_prime_file_private *prime_fpri
return -ENOENT;
}
-/**
- * drm_gem_map_attach - dma_buf attach implementation for GEM
- * @dma_buf: buffer to attach device to
- * @attach: buffer attachment data
- *
- * Calls &drm_driver.gem_prime_pin for device specific handling. This can be
- * used as the &dma_buf_ops.attach callback.
- *
- * Returns 0 on success, negative error code on failure.
- */
-int drm_gem_map_attach(struct dma_buf *dma_buf,
- struct dma_buf_attachment *attach)
-{
- struct drm_gem_object *obj = dma_buf->priv;
-
- return drm_gem_pin(obj);
-}
-EXPORT_SYMBOL(drm_gem_map_attach);
-
-/**
- * drm_gem_map_detach - dma_buf detach implementation for GEM
- * @dma_buf: buffer to detach from
- * @attach: attachment to be detached
- *
- * Cleans up &dma_buf_attachment. This can be used as the &dma_buf_ops.detach
- * callback.
- */
-void drm_gem_map_detach(struct dma_buf *dma_buf,
- struct dma_buf_attachment *attach)
-{
- struct drm_gem_object *obj = dma_buf->priv;
-
- drm_gem_unpin(obj);
-}
-EXPORT_SYMBOL(drm_gem_map_detach);
-
void drm_prime_remove_buf_handle_locked(struct drm_prime_file_private
*prime_fpriv,
struct dma_buf *dma_buf)
{
@@ -242,64 +206,18 @@ void drm_prime_remove_buf_handle_locked(struct
drm_prime_file_private *prime_fpr
}
}
-/**
- * drm_gem_map_dma_buf - map_dma_buf implementation for GEM
- * @attach: attachment whose scatterlist is to be returned
- * @dir: direction of DMA transfer
- *
- * Calls &drm_driver.gem_prime_get_sg_table and then maps the scatterlist. This
- * can be used as the &dma_buf_ops.map_dma_buf callback.
- *
- * Returns sg_table containing the scatterlist to be returned; returns ERR_PTR
- * on error. May return -EINTR if it is interrupted by a signal.
- */
-
-struct sg_table *drm_gem_map_dma_buf(struct dma_buf_attachment *attach,
-enum dma_data_direction dir)
+void drm_prime_init_file_private(struct drm_prime_file_private *prime_fpriv)
{
- struct drm_gem_object *obj = attach->dmabuf->priv;
- struct sg_table *sgt;
-
- if (WARN_ON(dir == DMA_NONE))
- return ERR_PTR(-EINVAL);
-
- if (obj->funcs)
- sgt = obj->funcs->get_sg_table(obj);
- else
- sgt = obj->dev->driver->gem_prime_get_sg_table(obj);
-
- if (!dma_map_sg_attrs(attach->dev, sgt->sgl, sgt->nents, dir,
- DMA_ATTR_SKIP_CPU_SYNC)) {
- sg_free_table(sgt);
- kfree(sgt);
- sgt = ERR_PTR(-ENOMEM);
- }
-
- return sgt;
+ mutex_init(&prime_fpriv->lock);
+ prime_fpriv->dmabufs = RB_ROOT;
+ prime_fpriv->handles = RB_ROOT;
}
-EXPORT_SYMBOL(drm_gem_map_dma_buf);
-/**
- * drm_gem_unmap_dma_buf - unmap_dma_buf implementation for GEM
- * @attach: attachment to unmap buffer from
- * @sgt: scatterlist info of the buffer to unmap
- * @dir: direction of DMA transfer
- *
- * This can be used as the &dma_buf_ops.unmap_dma_buf callback.
- */
-void drm_gem_unmap_dma_buf(struct dma_buf_attachment *attach,
- struct sg_table *sgt,
- enum dma_data_direction dir)
+void drm_prime_destroy_file_private(struct drm_prime_file_private *prime_fpriv)
{
- if (!sgt)
- return;
-
- dma_unmap_sg_attrs(attach->dev, sgt->sgl, sgt->nents, dir,
- DMA_ATTR_SKIP_CPU_SYNC);
- sg_free_table(sgt);
- kfree(sgt);
+ /* by now drm_gem_release should've made sure the list is empty */
+ WARN_ON(!RB_EMPTY_ROOT(&prime_fpriv->dmabufs));
}
-EXPORT_SYMBOL(drm_gem_unmap_dma_buf);
/**
* drm_gem_dmabuf_export - dma_buf export implementation for GEM
@@ -351,128 +269,101 @@ void drm_gem_dmabuf_release(struct dma_buf *dma_buf)
EXPORT_SYMBOL(drm_gem_dmabuf_release);
/**
- * drm_gem_dmabuf_vmap - dma_buf vmap implementation for GEM
- * @dma_buf: buffer to be mapped
- *
- * Sets up a kernel virtual mapping. This can be used as the &dma_buf_ops.vmap
- * callback.
+ * drm_gem_prime_fd_to_handle - PRIME import function for GEM drivers
+ * @dev: dev to export the buffer from
+ * @file_priv: drm file-private structure
+ * @prime_fd:
