linux-kernel - [PATCH 2/3] drm: switch shmem helper to drm_gem_object

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Message-Id: <20190620061547.8664-3-kraxel@redhat.com>
Date:   Thu, 20 Jun 2019 08:15:46 +0200
From:   Gerd Hoffmann <kraxel@...hat.com>
To:     dri-devel@...ts.freedesktop.org
Cc:     Gerd Hoffmann <kraxel@...hat.com>,
        Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        Maxime Ripard <maxime.ripard@...tlin.com>,
        Sean Paul <sean@...rly.run>, David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>, Rob Herring <robh@...nel.org>,
        Tomeu Vizoso <tomeu.vizoso@...labora.com>,
        Eric Anholt <eric@...olt.net>,
        linux-kernel@...r.kernel.org (open list)
Subject: [PATCH 2/3] drm: switch shmem helper to drm_gem_object_funcs->mmap

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

Signed-off-by: Gerd Hoffmann <kraxel@...hat.com>
---
 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 1ee208c2c85e..d5a248858486 100644
--- a/drivers/gpu/drm/drm_gem_shmem_helper.c
+++ b/drivers/gpu/drm/drm_gem_shmem_helper.c
@@ -31,6 +31,7 @@ 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,
 };
 
@@ -446,30 +447,25 @@ 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 886875ae31d3..23a6f04cfade 100644
--- a/drivers/gpu/drm/panfrost/panfrost_gem.c
+++ b/drivers/gpu/drm/panfrost/panfrost_gem.c
@@ -36,6 +36,7 @@ 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