From d40326f4b9f9617cdfd30f83a2db57d47e9c5bac Mon Sep 17 00:00:00 2001 From: Thierry Reding Date: Wed, 29 Jan 2014 20:32:33 +0100 Subject: [PATCH] drm/tegra: prime: Add vmap support This is trivial to support since all GEM objects are mapped into kernel space anyway. Signed-off-by: Thierry Reding --- drivers/gpu/drm/tegra/gem.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/drivers/gpu/drm/tegra/gem.c b/drivers/gpu/drm/tegra/gem.c index ef853e558036..29913eb9b25d 100644 --- a/drivers/gpu/drm/tegra/gem.c +++ b/drivers/gpu/drm/tegra/gem.c @@ -394,6 +394,18 @@ static int tegra_gem_prime_mmap(struct dma_buf *buf, struct vm_area_struct *vma) return -EINVAL; } +static void *tegra_gem_prime_vmap(struct dma_buf *buf) +{ + struct drm_gem_object *gem = buf->priv; + struct tegra_bo *bo = to_tegra_bo(gem); + + return bo->vaddr; +} + +static void tegra_gem_prime_vunmap(struct dma_buf *buf, void *vaddr) +{ +} + static const struct dma_buf_ops tegra_gem_prime_dmabuf_ops = { .map_dma_buf = tegra_gem_prime_map_dma_buf, .unmap_dma_buf = tegra_gem_prime_unmap_dma_buf, @@ -403,6 +415,8 @@ static const struct dma_buf_ops tegra_gem_prime_dmabuf_ops = { .kmap = tegra_gem_prime_kmap, .kunmap = tegra_gem_prime_kunmap, .mmap = tegra_gem_prime_mmap, + .vmap = tegra_gem_prime_vmap, + .vunmap = tegra_gem_prime_vunmap, }; struct dma_buf *tegra_gem_prime_export(struct drm_device *drm, -- 2.20.1