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| author | Chris Wilson <chris@chris-wilson.co.uk> | 2016-10-28 14:58:36 +0200 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2016-10-28 21:53:47 +0200 |
| commit | 03ac84f1830ec0b90f622500591eb3cc554ee479 (patch) | |
| tree | 1065394c640a1adaa555b0001ada12c52d01a7cb /drivers/gpu/drm/i915/i915_gem_dmabuf.c | |
| parent | drm/i915: Refactor object page API (diff) | |
| download | linux-03ac84f1830ec0b90f622500591eb3cc554ee479.tar.xz linux-03ac84f1830ec0b90f622500591eb3cc554ee479.zip | |
drm/i915: Pass around sg_table to get_pages/put_pages backend
The plan is to move obj->pages out from under the struct_mutex into its
own per-object lock. We need to prune any assumption of the struct_mutex
from the get_pages/put_pages backends, and to make it easier we pass
around the sg_table to operate on rather than indirectly via the obj.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20161028125858.23563-13-chris@chris-wilson.co.uk
Diffstat (limited to 'drivers/gpu/drm/i915/i915_gem_dmabuf.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_gem_dmabuf.c | 20 |
1 files changed, 8 insertions, 12 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem_dmabuf.c b/drivers/gpu/drm/i915/i915_gem_dmabuf.c index 10441dc72e73..2abd524aba14 100644 --- a/drivers/gpu/drm/i915/i915_gem_dmabuf.c +++ b/drivers/gpu/drm/i915/i915_gem_dmabuf.c @@ -289,22 +289,18 @@ struct dma_buf *i915_gem_prime_export(struct drm_device *dev, return dma_buf; } -static int i915_gem_object_get_pages_dmabuf(struct drm_i915_gem_object *obj) +static struct sg_table * +i915_gem_object_get_pages_dmabuf(struct drm_i915_gem_object *obj) { - struct sg_table *sg; - - sg = dma_buf_map_attachment(obj->base.import_attach, DMA_BIDIRECTIONAL); - if (IS_ERR(sg)) - return PTR_ERR(sg); - - obj->mm.pages = sg; - return 0; + return dma_buf_map_attachment(obj->base.import_attach, + DMA_BIDIRECTIONAL); } -static void i915_gem_object_put_pages_dmabuf(struct drm_i915_gem_object *obj) +static void i915_gem_object_put_pages_dmabuf(struct drm_i915_gem_object *obj, + struct sg_table *pages) { - dma_buf_unmap_attachment(obj->base.import_attach, - obj->mm.pages, DMA_BIDIRECTIONAL); + dma_buf_unmap_attachment(obj->base.import_attach, pages, + DMA_BIDIRECTIONAL); } static const struct drm_i915_gem_object_ops i915_gem_object_dmabuf_ops = { |