diff options
| author | Chris Wilson <chris@chris-wilson.co.uk> | 2016-10-28 13:58:35 +0100 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2016-10-28 20:53:46 +0100 |
| commit | a4f5ea64f0a818586b9de71803824b43dd01e517 (patch) | |
| tree | 9a786a5df5fc622a5a3824580e489f0e9ee601d6 /drivers/gpu/drm/i915/i915_gem_dmabuf.c | |
| parent | d2a84a76a3b970fa32e6eda3d85e7782f831379e (diff) | |
drm/i915: Refactor object page API
The plan is to make obtaining the backing storage for the object avoid
struct_mutex (i.e. use its own locking). The first step is to update the
API so that normal users only call pin/unpin whilst working on the
backing storage.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20161028125858.23563-12-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 | 14 |
1 files changed, 6 insertions, 8 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem_dmabuf.c b/drivers/gpu/drm/i915/i915_gem_dmabuf.c index 97c9d68b45df..10441dc72e73 100644 --- a/drivers/gpu/drm/i915/i915_gem_dmabuf.c +++ b/drivers/gpu/drm/i915/i915_gem_dmabuf.c @@ -48,12 +48,10 @@ static struct sg_table *i915_gem_map_dma_buf(struct dma_buf_attachment *attachme if (ret) goto err; - ret = i915_gem_object_get_pages(obj); + ret = i915_gem_object_pin_pages(obj); if (ret) goto err_unlock; - i915_gem_object_pin_pages(obj); - /* Copy sg so that we make an independent mapping */ st = kmalloc(sizeof(struct sg_table), GFP_KERNEL); if (st == NULL) { @@ -61,13 +59,13 @@ static struct sg_table *i915_gem_map_dma_buf(struct dma_buf_attachment *attachme goto err_unpin; } - ret = sg_alloc_table(st, obj->pages->nents, GFP_KERNEL); + ret = sg_alloc_table(st, obj->mm.pages->nents, GFP_KERNEL); if (ret) goto err_free; - src = obj->pages->sgl; + src = obj->mm.pages->sgl; dst = st->sgl; - for (i = 0; i < obj->pages->nents; i++) { + for (i = 0; i < obj->mm.pages->nents; i++) { sg_set_page(dst, sg_page(src), src->length, 0); dst = sg_next(dst); src = sg_next(src); @@ -299,14 +297,14 @@ static int i915_gem_object_get_pages_dmabuf(struct drm_i915_gem_object *obj) if (IS_ERR(sg)) return PTR_ERR(sg); - obj->pages = sg; + obj->mm.pages = sg; return 0; } static void i915_gem_object_put_pages_dmabuf(struct drm_i915_gem_object *obj) { dma_buf_unmap_attachment(obj->base.import_attach, - obj->pages, DMA_BIDIRECTIONAL); + obj->mm.pages, DMA_BIDIRECTIONAL); } static const struct drm_i915_gem_object_ops i915_gem_object_dmabuf_ops = { |