Commit 790861cc authored by Samuel Li's avatar Samuel Li Committed by Alex Deucher

drm: add parameter explanation for some gem dmabuf_ops

To reduce some warnings.
Reviewed-by: default avatarAlex Deucher <alexander.deucher@amd.com>
Signed-off-by: default avatarSamuel Li <Samuel.Li@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1522092145-12645-1-git-send-email-Samuel.Li@amd.com
parent e85d3006
...@@ -331,6 +331,9 @@ EXPORT_SYMBOL(drm_gem_map_dma_buf); ...@@ -331,6 +331,9 @@ EXPORT_SYMBOL(drm_gem_map_dma_buf);
/** /**
* drm_gem_unmap_dma_buf - unmap_dma_buf implementation for GEM * 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
* *
* Not implemented. The unmap is done at drm_gem_map_detach(). This can be * Not implemented. The unmap is done at drm_gem_map_detach(). This can be
* used as the &dma_buf_ops.unmap_dma_buf callback. * used as the &dma_buf_ops.unmap_dma_buf callback.
...@@ -429,6 +432,8 @@ EXPORT_SYMBOL(drm_gem_dmabuf_vunmap); ...@@ -429,6 +432,8 @@ EXPORT_SYMBOL(drm_gem_dmabuf_vunmap);
/** /**
* drm_gem_dmabuf_kmap_atomic - map_atomic implementation for GEM * drm_gem_dmabuf_kmap_atomic - map_atomic implementation for GEM
* @dma_buf: buffer to be mapped
* @page_num: page number within the buffer
* *
* Not implemented. This can be used as the &dma_buf_ops.map_atomic callback. * Not implemented. This can be used as the &dma_buf_ops.map_atomic callback.
*/ */
...@@ -441,6 +446,9 @@ EXPORT_SYMBOL(drm_gem_dmabuf_kmap_atomic); ...@@ -441,6 +446,9 @@ EXPORT_SYMBOL(drm_gem_dmabuf_kmap_atomic);
/** /**
* drm_gem_dmabuf_kunmap_atomic - unmap_atomic implementation for GEM * drm_gem_dmabuf_kunmap_atomic - unmap_atomic implementation for GEM
* @dma_buf: buffer to be unmapped
* @page_num: page number within the buffer
* @addr: virtual address of the buffer
* *
* Not implemented. This can be used as the &dma_buf_ops.unmap_atomic callback. * Not implemented. This can be used as the &dma_buf_ops.unmap_atomic callback.
*/ */
...@@ -453,6 +461,8 @@ EXPORT_SYMBOL(drm_gem_dmabuf_kunmap_atomic); ...@@ -453,6 +461,8 @@ EXPORT_SYMBOL(drm_gem_dmabuf_kunmap_atomic);
/** /**
* drm_gem_dmabuf_kmap - map implementation for GEM * drm_gem_dmabuf_kmap - map implementation for GEM
* @dma_buf: buffer to be mapped
* @page_num: page number within the buffer
* *
* Not implemented. This can be used as the &dma_buf_ops.map callback. * Not implemented. This can be used as the &dma_buf_ops.map callback.
*/ */
...@@ -464,6 +474,9 @@ EXPORT_SYMBOL(drm_gem_dmabuf_kmap); ...@@ -464,6 +474,9 @@ EXPORT_SYMBOL(drm_gem_dmabuf_kmap);
/** /**
* drm_gem_dmabuf_kunmap - unmap implementation for GEM * drm_gem_dmabuf_kunmap - unmap implementation for GEM
* @dma_buf: buffer to be unmapped
* @page_num: page number within the buffer
* @addr: virtual address of the buffer
* *
* Not implemented. This can be used as the &dma_buf_ops.unmap callback. * Not implemented. This can be used as the &dma_buf_ops.unmap callback.
*/ */
......
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