[PATCH v2 23/25] drm/mediatek: add vmap support for mediatek drm

yongqiang.niu
2019-03-27T06:23:28Z

From: Yongqiang Niu <yongqiang.niu@mediatek.com>

This patch add add vmap support for mediatek drm

Signed-off-by: Yongqiang Niu <yongqiang.niu@mediatek.com>
---
drivers/gpu/drm/mediatek/mtk_drm_drv.c | 1 +
drivers/gpu/drm/mediatek/mtk_drm_gem.c | 7 +++++++
drivers/gpu/drm/mediatek/mtk_drm_gem.h | 1 +
3 files changed, 9 insertions(+)

diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.c b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
index 84c6626..942789d 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_drv.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
@@ -370,6 +370,7 @@ static void mtk_drm_kms_deinit(struct drm_device *drm)
.gem_prime_get_sg_table = mtk_gem_prime_get_sg_table,
.gem_prime_import_sg_table = mtk_gem_prime_import_sg_table,
.gem_prime_mmap = mtk_drm_gem_mmap_buf,
+ .gem_prime_vmap = mtk_drm_gem_vmap_buf,
.fops = &mtk_drm_fops,

.name = DRIVER_NAME,
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_gem.c b/drivers/gpu/drm/mediatek/mtk_drm_gem.c
index 259b7b0..c230237 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_gem.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_gem.c
@@ -165,6 +165,13 @@ int mtk_drm_gem_mmap_buf(struct drm_gem_object *obj, struct vm_area_struct *vma)
return mtk_drm_gem_object_mmap(obj, vma);
}

+void *mtk_drm_gem_vmap_buf(struct drm_gem_object *obj)
+{
+ struct mtk_drm_gem_obj *mtk_gem = to_mtk_gem_obj(obj);
+
+ return mtk_gem->cookie;
+}
+
int mtk_drm_gem_mmap(struct file *filp, struct vm_area_struct *vma)
{
struct drm_gem_object *obj;
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_gem.h b/drivers/gpu/drm/mediatek/mtk_drm_gem.h
index 534639b..3c48af9 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_gem.h
+++ b/drivers/gpu/drm/mediatek/mtk_drm_gem.h
@@ -49,6 +49,7 @@ int mtk_drm_gem_dumb_create(struct drm_file *file_priv, struct drm_device *dev,
int mtk_drm_gem_mmap(struct file *filp, struct vm_area_struct *vma);
int mtk_drm_gem_mmap_buf(struct drm_gem_object *obj,
struct vm_area_struct *vma);
+void *mtk_drm_gem_vmap_buf(struct drm_gem_object *obj);
struct sg_table *mtk_gem_prime_get_sg_table(struct drm_gem_object *obj);
struct drm_gem_object *mtk_gem_prime_import_sg_table(struct drm_device *dev,
struct dma_buf_attachment *attach, struct sg_table *sg);
--
1.8.1.1.dirty