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drm/mtk: Move GEM BO to drm_framebuffer

Browse source 
Since drm_framebuffer can now store GEM objects directly, place them
there rather than in our own subclass. As this makes the framebuffer
create_handle and destroy functions the same as the GEM framebuffer
helper, we can reuse those.

Signed-off-by: Daniel Stone <daniels@collabora.com>
Signed-off-by: CK Hu <ck.hu@mediatek.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Cc: Philipp Zabel <p.zabel@pengutronix.de>
This commit is contained in:
Daniel Stone 2018-05-18 14:47:04 +01:00 committed by CK Hu
parent 06ede493a9
commit 548cb82538
3 changed files with 6 additions and 35 deletions
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38
drivers/gpu/drm/mediatek/mtk_drm_fb.c
View file

@ -15,6 +15,7 @@
#include <drm/drm_crtc_helper.h>
#include <drm/drm_fb_helper.h>
#include <drm/drm_gem.h>
#include <drm/drm_gem_framebuffer_helper.h>
#include <linux/dma-buf.h>
#include <linux/reservation.h>
@ -30,42 +31,13 @@
*/
struct mtk_drm_fb {
struct drm_framebuffer base;
/* For now we only support a single plane */
struct drm_gem_object *gem_obj;
};
#define to_mtk_fb(x) container_of(x, struct mtk_drm_fb, base)
struct drm_gem_object *mtk_fb_get_gem_obj(struct drm_framebuffer *fb)
{
struct mtk_drm_fb *mtk_fb = to_mtk_fb(fb);
return mtk_fb->gem_obj;
}
static int mtk_drm_fb_create_handle(struct drm_framebuffer *fb,
struct drm_file *file_priv,
unsigned int *handle)
{
struct mtk_drm_fb *mtk_fb = to_mtk_fb(fb);
return drm_gem_handle_create(file_priv, mtk_fb->gem_obj, handle);
}
static void mtk_drm_fb_destroy(struct drm_framebuffer *fb)
{
struct mtk_drm_fb *mtk_fb = to_mtk_fb(fb);
drm_framebuffer_cleanup(fb);
drm_gem_object_put_unlocked(mtk_fb->gem_obj);
kfree(mtk_fb);
}
static const struct drm_framebuffer_funcs mtk_drm_fb_funcs = {
.create_handle = mtk_drm_fb_create_handle,
.destroy = mtk_drm_fb_destroy,
.create_handle = drm_gem_fb_create_handle,
.destroy = drm_gem_fb_destroy,
};
static struct mtk_drm_fb *mtk_drm_framebuffer_init(struct drm_device *dev,
@ -84,7 +56,7 @@ static struct mtk_drm_fb *mtk_drm_framebuffer_init(struct drm_device *dev,
drm_helper_mode_fill_fb_struct(dev, &mtk_fb->base, mode);
mtk_fb->gem_obj = obj;
mtk_fb->base.obj[0] = obj;
ret = drm_framebuffer_init(dev, &mtk_fb->base, &mtk_drm_fb_funcs);
if (ret) {
@ -110,7 +82,7 @@ int mtk_fb_wait(struct drm_framebuffer *fb)
if (!fb)
return 0;
gem = mtk_fb_get_gem_obj(fb);
gem = fb->obj[0];
if (!gem || !gem->dma_buf || !gem->dma_buf->resv)
return 0;

1
drivers/gpu/drm/mediatek/mtk_drm_fb.h
View file

@ -14,7 +14,6 @@
#ifndef MTK_DRM_FB_H
#define MTK_DRM_FB_H
struct drm_gem_object *mtk_fb_get_gem_obj(struct drm_framebuffer *fb);
int mtk_fb_wait(struct drm_framebuffer *fb);
struct drm_framebuffer *mtk_drm_mode_fb_create(struct drm_device *dev,
struct drm_file *file,

2
drivers/gpu/drm/mediatek/mtk_drm_plane.c
View file

@ -122,7 +122,7 @@ static void mtk_plane_atomic_update(struct drm_plane *plane,
if (!crtc || WARN_ON(!fb))
return;
gem = mtk_fb_get_gem_obj(fb);
gem = fb->obj[0];
mtk_gem = to_mtk_gem_obj(gem);
addr = mtk_gem->dma_addr;
pitch = fb->pitches[0];