Contributors: 16
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Thomas Zimmermann |
322 |
55.90% |
10 |
25.64% |
| Inki Dae |
139 |
24.13% |
5 |
12.82% |
| Prathyush K |
45 |
7.81% |
1 |
2.56% |
| Joonyoung Shim |
34 |
5.90% |
6 |
15.38% |
| Daniel Vetter |
6 |
1.04% |
3 |
7.69% |
| Marek Szyprowski |
5 |
0.87% |
3 |
7.69% |
| Sam Ravnborg |
4 |
0.69% |
1 |
2.56% |
| Jani Nikula |
4 |
0.69% |
2 |
5.13% |
| Ville Syrjälä |
4 |
0.69% |
1 |
2.56% |
| Mark Brown |
3 |
0.52% |
1 |
2.56% |
| Vikas Sajjan |
3 |
0.52% |
1 |
2.56% |
| Thomas Gleixner |
2 |
0.35% |
1 |
2.56% |
| Stefan Christ |
2 |
0.35% |
1 |
2.56% |
| David Howells |
1 |
0.17% |
1 |
2.56% |
| Rob Clark |
1 |
0.17% |
1 |
2.56% |
| Sachin Kamat |
1 |
0.17% |
1 |
2.56% |
| Total |
576 |
|
39 |
|
// SPDX-License-Identifier: GPL-2.0-or-later
/* exynos_drm_fbdev.c
*
* Copyright (c) 2011 Samsung Electronics Co., Ltd.
* Authors:
* Inki Dae <inki.dae@samsung.com>
* Joonyoung Shim <jy0922.shim@samsung.com>
* Seung-Woo Kim <sw0312.kim@samsung.com>
*/
#include <linux/fb.h>
#include <drm/drm_crtc_helper.h>
#include <drm/drm_drv.h>
#include <drm/drm_fb_helper.h>
#include <drm/drm_framebuffer.h>
#include <drm/drm_gem_framebuffer_helper.h>
#include <drm/drm_prime.h>
#include <drm/drm_print.h>
#include <drm/exynos_drm.h>
#include "exynos_drm_drv.h"
#include "exynos_drm_fb.h"
#include "exynos_drm_fbdev.h"
#include "exynos_drm_gem.h"
#define MAX_CONNECTOR 4
static int exynos_drm_fb_mmap(struct fb_info *info, struct vm_area_struct *vma)
{
struct drm_fb_helper *helper = info->par;
struct drm_gem_object *obj = drm_gem_fb_get_obj(helper->fb, 0);
return drm_gem_prime_mmap(obj, vma);
}
static void exynos_drm_fb_destroy(struct fb_info *info)
{
struct drm_fb_helper *fb_helper = info->par;
drm_fb_helper_fini(fb_helper);
drm_client_buffer_delete(fb_helper->buffer);
drm_client_release(&fb_helper->client);
}
static const struct fb_ops exynos_drm_fb_ops = {
.owner = THIS_MODULE,
__FB_DEFAULT_DMAMEM_OPS_RDWR,
DRM_FB_HELPER_DEFAULT_OPS,
__FB_DEFAULT_DMAMEM_OPS_DRAW,
.fb_mmap = exynos_drm_fb_mmap,
.fb_destroy = exynos_drm_fb_destroy,
};
static const struct drm_fb_helper_funcs exynos_drm_fbdev_helper_funcs = {
};
int exynos_drm_fbdev_driver_fbdev_probe(struct drm_fb_helper *helper,
struct drm_fb_helper_surface_size *sizes)
{
struct drm_client_dev *client = &helper->client;
struct drm_device *dev = client->dev;
struct drm_file *file = client->file;
struct fb_info *info = helper->info;
u32 fourcc, pitch;
u64 size;
const struct drm_format_info *format;
struct exynos_drm_gem *exynos_gem;
struct drm_gem_object *obj;
struct drm_client_buffer *buffer;
u32 handle;
int ret;
DRM_DEV_DEBUG_KMS(dev->dev,
"surface width(%d), height(%d) and bpp(%d\n",
sizes->surface_width, sizes->surface_height,
sizes->surface_bpp);
fourcc = drm_mode_legacy_fb_format(sizes->surface_bpp, sizes->surface_depth);
if (fourcc == DRM_FORMAT_INVALID)
return -EINVAL;
format = drm_get_format_info(dev, fourcc, DRM_FORMAT_MOD_LINEAR);
if (!format)
return -EINVAL;
pitch = drm_format_info_min_pitch(format, 0, sizes->surface_width);
if (!pitch)
return -EINVAL;
if (check_mul_overflow(pitch, sizes->surface_height, &size))
return -EINVAL;
size = ALIGN(size, PAGE_SIZE);
if (size < PAGE_SIZE)
return -EINVAL;
exynos_gem = exynos_drm_gem_create(dev, EXYNOS_BO_WC, size, true);
if (IS_ERR(exynos_gem))
return PTR_ERR(exynos_gem);
obj = &exynos_gem->base;
ret = drm_gem_handle_create(file, obj, &handle);
if (ret)
goto err_drm_gem_object_put;
buffer = drm_client_buffer_create(client, sizes->surface_width, sizes->surface_height,
fourcc, handle, pitch);
if (IS_ERR(buffer)) {
ret = PTR_ERR(buffer);
goto err_drm_gem_handle_delete;
}
helper->funcs = &exynos_drm_fbdev_helper_funcs;
helper->buffer = buffer;
helper->fb = buffer->fb;
info->fbops = &exynos_drm_fb_ops;
drm_fb_helper_fill_info(info, helper, sizes);
info->flags |= FBINFO_VIRTFB;
info->screen_buffer = exynos_gem->kvaddr;
info->screen_size = obj->size;
info->fix.smem_len = obj->size;
/* The handle is only needed for creating the framebuffer. */
drm_gem_handle_delete(file, handle);
/* The framebuffer still holds a reference on the GEM object. */
drm_gem_object_put(obj);
return 0;
err_drm_gem_handle_delete:
drm_gem_handle_delete(file, handle);
err_drm_gem_object_put:
drm_gem_object_put(obj);
return ret;
}