[PATCH v4 06/17] drm/shmem: switch shmem helper to drm_gem_object_funcs->mmap

From: Gerd Hoffmann
Date: Thu Aug 08 2019 - 09:45:08 EST


Switch gem shmem helper from gem_driver->fops->mmap to
drm_gem_object_funcs->mmap.

Signed-off-by: Gerd Hoffmann <kraxel@xxxxxxxxxx>
---
include/drm/drm_gem_shmem_helper.h | 4 ++--
drivers/gpu/drm/drm_gem_shmem_helper.c | 18 +++++++-----------
drivers/gpu/drm/panfrost/panfrost_gem.c | 1 +
drivers/gpu/drm/v3d/v3d_bo.c | 1 +
4 files changed, 11 insertions(+), 13 deletions(-)

diff --git a/include/drm/drm_gem_shmem_helper.h b/include/drm/drm_gem_shmem_helper.h
index 038b6d313447..0f7b77cdc26b 100644
--- a/include/drm/drm_gem_shmem_helper.h
+++ b/include/drm/drm_gem_shmem_helper.h
@@ -108,7 +108,7 @@ struct drm_gem_shmem_object {
.poll = drm_poll,\
.read = drm_read,\
.llseek = noop_llseek,\
- .mmap = drm_gem_shmem_mmap, \
+ .mmap = drm_gem_mmap, \
}

struct drm_gem_shmem_object *drm_gem_shmem_create(struct drm_device *dev, size_t size);
@@ -128,7 +128,7 @@ drm_gem_shmem_create_with_handle(struct drm_file *file_priv,
int drm_gem_shmem_dumb_create(struct drm_file *file, struct drm_device *dev,
struct drm_mode_create_dumb *args);

-int drm_gem_shmem_mmap(struct file *filp, struct vm_area_struct *vma);
+int drm_gem_shmem_mmap(struct drm_gem_object *obj, struct vm_area_struct *vma);

extern const struct vm_operations_struct drm_gem_shmem_vm_ops;

diff --git a/drivers/gpu/drm/drm_gem_shmem_helper.c b/drivers/gpu/drm/drm_gem_shmem_helper.c
index 2f64667ac805..2e5780520587 100644
--- a/drivers/gpu/drm/drm_gem_shmem_helper.c
+++ b/drivers/gpu/drm/drm_gem_shmem_helper.c
@@ -32,6 +32,7 @@ static const struct drm_gem_object_funcs drm_gem_shmem_funcs = {
.get_sg_table = drm_gem_shmem_get_sg_table,
.vmap = drm_gem_shmem_vmap,
.vunmap = drm_gem_shmem_vunmap,
+ .mmap = drm_gem_shmem_mmap,
.vm_ops = &drm_gem_shmem_vm_ops,
};

@@ -448,30 +449,25 @@ EXPORT_SYMBOL_GPL(drm_gem_shmem_vm_ops);

/**
* drm_gem_shmem_mmap - Memory-map a shmem GEM object
- * @filp: File object
+ * @obj: gem object
* @vma: VMA for the area to be mapped
*
* This function implements an augmented version of the GEM DRM file mmap
* operation for shmem objects. Drivers which employ the shmem helpers should
- * use this function as their &file_operations.mmap handler in the DRM device file's
- * file_operations structure.
+ * use this function as their &drm_gem_object_funcs.mmap handler.
*
- * Instead of directly referencing this function, drivers should use the
- * DEFINE_DRM_GEM_SHMEM_FOPS() macro.
+ * Instead of directly referencing this function, drivers can use
+ * drm_gem_shmem_funcs.
*
* Returns:
* 0 on success or a negative error code on failure.
*/
-int drm_gem_shmem_mmap(struct file *filp, struct vm_area_struct *vma)
+int drm_gem_shmem_mmap(struct drm_gem_object *obj, struct vm_area_struct *vma)
{
struct drm_gem_shmem_object *shmem;
int ret;

- ret = drm_gem_mmap(filp, vma);
- if (ret)
- return ret;
-
- shmem = to_drm_gem_shmem_obj(vma->vm_private_data);
+ shmem = to_drm_gem_shmem_obj(obj);

ret = drm_gem_shmem_get_pages(shmem);
if (ret) {
diff --git a/drivers/gpu/drm/panfrost/panfrost_gem.c b/drivers/gpu/drm/panfrost/panfrost_gem.c
index 543ab1b81bd5..7c2314a88cd4 100644
--- a/drivers/gpu/drm/panfrost/panfrost_gem.c
+++ b/drivers/gpu/drm/panfrost/panfrost_gem.c
@@ -37,6 +37,7 @@ static const struct drm_gem_object_funcs panfrost_gem_funcs = {
.get_sg_table = drm_gem_shmem_get_sg_table,
.vmap = drm_gem_shmem_vmap,
.vunmap = drm_gem_shmem_vunmap,
+ .mmap = drm_gem_shmem_mmap,
.vm_ops = &drm_gem_shmem_vm_ops,
};

diff --git a/drivers/gpu/drm/v3d/v3d_bo.c b/drivers/gpu/drm/v3d/v3d_bo.c
index a22b75a3a533..c01e2b952451 100644
--- a/drivers/gpu/drm/v3d/v3d_bo.c
+++ b/drivers/gpu/drm/v3d/v3d_bo.c
@@ -58,6 +58,7 @@ static const struct drm_gem_object_funcs v3d_gem_funcs = {
.get_sg_table = drm_gem_shmem_get_sg_table,
.vmap = drm_gem_shmem_vmap,
.vunmap = drm_gem_shmem_vunmap,
+ .mmap = drm_gem_shmem_mmap,
.vm_ops = &drm_gem_shmem_vm_ops,
};

--
2.18.1