From: Daniel Vetter Date: Wed, 14 Aug 2013 22:02:30 +0000 (+0200) Subject: drm: use common drm_gem_dmabuf_release in i915/exynos drivers X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=c1d6798d20eed38b842eee01813ca6c48630d563;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git drm: use common drm_gem_dmabuf_release in i915/exynos drivers Note that this is slightly tricky since both drivers store their native objects in dma_buf->priv. But both also embed the base drm_gem_object at the first position, so the implicit cast is ok. To use the release helper we need to export it, too. Cc: Inki Dae Cc: Intel Graphics Development Signed-off-by: Daniel Vetter Signed-off-by: Dave Airlie --- diff --git a/drivers/gpu/drm/drm_prime.c b/drivers/gpu/drm/drm_prime.c index 85e450e3241c..a35f206bdc34 100644 --- a/drivers/gpu/drm/drm_prime.c +++ b/drivers/gpu/drm/drm_prime.c @@ -192,7 +192,7 @@ static void drm_gem_unmap_dma_buf(struct dma_buf_attachment *attach, /* nothing to be done here */ } -static void drm_gem_dmabuf_release(struct dma_buf *dma_buf) +void drm_gem_dmabuf_release(struct dma_buf *dma_buf) { struct drm_gem_object *obj = dma_buf->priv; @@ -202,6 +202,7 @@ static void drm_gem_dmabuf_release(struct dma_buf *dma_buf) drm_gem_object_unreference_unlocked(obj); } } +EXPORT_SYMBOL(drm_gem_dmabuf_release); static void *drm_gem_dmabuf_vmap(struct dma_buf *dma_buf) { diff --git a/drivers/gpu/drm/exynos/exynos_drm_dmabuf.c b/drivers/gpu/drm/exynos/exynos_drm_dmabuf.c index a0f997e0cbdf..3cd56e16a0ef 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_dmabuf.c +++ b/drivers/gpu/drm/exynos/exynos_drm_dmabuf.c @@ -127,27 +127,6 @@ static void exynos_gem_unmap_dma_buf(struct dma_buf_attachment *attach, /* Nothing to do. */ } -static void exynos_dmabuf_release(struct dma_buf *dmabuf) -{ - struct exynos_drm_gem_obj *exynos_gem_obj = dmabuf->priv; - - /* - * exynos_dmabuf_release() call means that file object's - * f_count is 0 and it calls drm_gem_object_handle_unreference() - * to drop the references that these values had been increased - * at drm_prime_handle_to_fd() - */ - if (exynos_gem_obj->base.export_dma_buf == dmabuf) { - exynos_gem_obj->base.export_dma_buf = NULL; - - /* - * drop this gem object refcount to release allocated buffer - * and resources. - */ - drm_gem_object_unreference_unlocked(&exynos_gem_obj->base); - } -} - static void *exynos_gem_dmabuf_kmap_atomic(struct dma_buf *dma_buf, unsigned long page_num) { @@ -193,7 +172,7 @@ static struct dma_buf_ops exynos_dmabuf_ops = { .kunmap = exynos_gem_dmabuf_kunmap, .kunmap_atomic = exynos_gem_dmabuf_kunmap_atomic, .mmap = exynos_gem_dmabuf_mmap, - .release = exynos_dmabuf_release, + .release = drm_gem_dmabuf_release, }; struct dma_buf *exynos_dmabuf_prime_export(struct drm_device *drm_dev, diff --git a/drivers/gpu/drm/i915/i915_gem_dmabuf.c b/drivers/gpu/drm/i915/i915_gem_dmabuf.c index f2e185c9038f..63ee1a9f7978 100644 --- a/drivers/gpu/drm/i915/i915_gem_dmabuf.c +++ b/drivers/gpu/drm/i915/i915_gem_dmabuf.c @@ -90,17 +90,6 @@ static void i915_gem_unmap_dma_buf(struct dma_buf_attachment *attachment, kfree(sg); } -static void i915_gem_dmabuf_release(struct dma_buf *dma_buf) -{ - struct drm_i915_gem_object *obj = dma_buf->priv; - - if (obj->base.export_dma_buf == dma_buf) { - /* drop the reference on the export fd holds */ - obj->base.export_dma_buf = NULL; - drm_gem_object_unreference_unlocked(&obj->base); - } -} - static void *i915_gem_dmabuf_vmap(struct dma_buf *dma_buf) { struct drm_i915_gem_object *obj = dma_buf->priv; @@ -211,7 +200,7 @@ static int i915_gem_begin_cpu_access(struct dma_buf *dma_buf, size_t start, size static const struct dma_buf_ops i915_dmabuf_ops = { .map_dma_buf = i915_gem_map_dma_buf, .unmap_dma_buf = i915_gem_unmap_dma_buf, - .release = i915_gem_dmabuf_release, + .release = drm_gem_dmabuf_release, .kmap = i915_gem_dmabuf_kmap, .kmap_atomic = i915_gem_dmabuf_kmap_atomic, .kunmap = i915_gem_dmabuf_kunmap, diff --git a/include/drm/drmP.h b/include/drm/drmP.h index 91f343c8b160..5ebed3ea10ba 100644 --- a/include/drm/drmP.h +++ b/include/drm/drmP.h @@ -1478,6 +1478,7 @@ extern struct drm_gem_object *drm_gem_prime_import(struct drm_device *dev, struct dma_buf *dma_buf); extern int drm_gem_prime_fd_to_handle(struct drm_device *dev, struct drm_file *file_priv, int prime_fd, uint32_t *handle); +extern void drm_gem_dmabuf_release(struct dma_buf *dma_buf); extern int drm_prime_handle_to_fd_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv);