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drm/tegra: Move GEM BOs to drm_framebuffer

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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 function the same as the GEM framebuffer helper, we
can reuse that.

Signed-off-by: Daniel Stone <daniels@collabora.com>
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: linux-tegra@vger.kernel.org
Signed-off-by: Thierry Reding <treding@nvidia.com>
This commit is contained in:
Daniel Stone 2018-03-30 15:11:26 +01:00 committed by Thierry Reding
parent e1189921b5
commit 0bc6af006f
2 changed files with 8 additions and 30 deletions
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1
drivers/gpu/drm/tegra/drm.h
View File

@ -31,7 +31,6 @@ struct reset_control;
struct tegra_fb {
struct drm_framebuffer base;
struct tegra_bo **planes;
};
#ifdef CONFIG_DRM_FBDEV_EMULATION

37
drivers/gpu/drm/tegra/fb.c
View File

@ -14,6 +14,7 @@
#include "drm.h"
#include "gem.h"
#include <drm/drm_gem_framebuffer_helper.h>
static inline struct tegra_fb *to_tegra_fb(struct drm_framebuffer *fb)
{
@ -30,19 +31,14 @@ static inline struct tegra_fbdev *to_tegra_fbdev(struct drm_fb_helper *helper)
struct tegra_bo *tegra_fb_get_plane(struct drm_framebuffer *framebuffer,
unsigned int index)
{
struct tegra_fb *fb = to_tegra_fb(framebuffer);
if (index >= framebuffer->format->num_planes)
return NULL;
return fb->planes[index];
return to_tegra_bo(drm_gem_fb_get_obj(framebuffer, index));
}
bool tegra_fb_is_bottom_up(struct drm_framebuffer *framebuffer)
{
struct tegra_fb *fb = to_tegra_fb(framebuffer);
struct tegra_bo *bo = tegra_fb_get_plane(framebuffer, 0);
if (fb->planes[0]->flags & TEGRA_BO_BOTTOM_UP)
if (bo->flags & TEGRA_BO_BOTTOM_UP)
return true;
return false;
@ -51,8 +47,7 @@ bool tegra_fb_is_bottom_up(struct drm_framebuffer *framebuffer)
int tegra_fb_get_tiling(struct drm_framebuffer *framebuffer,
struct tegra_bo_tiling *tiling)
{
struct tegra_fb *fb = to_tegra_fb(framebuffer);
uint64_t modifier = fb->base.modifier;
uint64_t modifier = framebuffer->modifier;
switch (modifier) {
case DRM_FORMAT_MOD_LINEAR:
@ -108,7 +103,7 @@ static void tegra_fb_destroy(struct drm_framebuffer *framebuffer)
unsigned int i;
for (i = 0; i < framebuffer->format->num_planes; i++) {
struct tegra_bo *bo = fb->planes[i];
struct tegra_bo *bo = tegra_fb_get_plane(framebuffer, i);
if (bo) {
if (bo->pages)
@ -119,21 +114,12 @@ static void tegra_fb_destroy(struct drm_framebuffer *framebuffer)
}
drm_framebuffer_cleanup(framebuffer);
kfree(fb->planes);
kfree(fb);
}
static int tegra_fb_create_handle(struct drm_framebuffer *framebuffer,
struct drm_file *file, unsigned int *handle)
{
struct tegra_fb *fb = to_tegra_fb(framebuffer);
return drm_gem_handle_create(file, &fb->planes[0]->gem, handle);
}
static const struct drm_framebuffer_funcs tegra_fb_funcs = {
.destroy = tegra_fb_destroy,
.create_handle = tegra_fb_create_handle,
.create_handle = drm_gem_fb_create_handle,
};
static struct tegra_fb *tegra_fb_alloc(struct drm_device *drm,
@ -149,22 +135,15 @@ static struct tegra_fb *tegra_fb_alloc(struct drm_device *drm,
if (!fb)
return ERR_PTR(-ENOMEM);
fb->planes = kzalloc(num_planes * sizeof(*planes), GFP_KERNEL);
if (!fb->planes) {
kfree(fb);
return ERR_PTR(-ENOMEM);
}
drm_helper_mode_fill_fb_struct(drm, &fb->base, mode_cmd);
for (i = 0; i < fb->base.format->num_planes; i++)
fb->planes[i] = planes[i];
fb->base.obj[i] = &planes[i]->gem;
err = drm_framebuffer_init(drm, &fb->base, &tegra_fb_funcs);
if (err < 0) {
dev_err(drm->dev, "failed to initialize framebuffer: %d\n",
err);
kfree(fb->planes);
kfree(fb);
return ERR_PTR(err);
}