Release 4.7 drivers/gpu/drm/exynos/exynos_drm_fb.c
/* exynos_drm_fb.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>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*/
#include <drm/drmP.h>
#include <drm/drm_crtc.h>
#include <drm/drm_crtc_helper.h>
#include <drm/drm_fb_helper.h>
#include <drm/drm_atomic.h>
#include <drm/drm_atomic_helper.h>
#include <uapi/drm/exynos_drm.h>
#include "exynos_drm_drv.h"
#include "exynos_drm_fb.h"
#include "exynos_drm_fbdev.h"
#include "exynos_drm_iommu.h"
#include "exynos_drm_crtc.h"
#define to_exynos_fb(x) container_of(x, struct exynos_drm_fb, fb)
/*
* exynos specific framebuffer structure.
*
* @fb: drm framebuffer obejct.
* @exynos_gem: array of exynos specific gem object containing a gem object.
*/
struct exynos_drm_fb {
struct drm_framebuffer fb;
struct exynos_drm_gem *exynos_gem[MAX_FB_BUFFER];
dma_addr_t dma_addr[MAX_FB_BUFFER];
};
static int check_fb_gem_memory_type(struct drm_device *drm_dev,
struct exynos_drm_gem *exynos_gem)
{
unsigned int flags;
/*
* if exynos drm driver supports iommu then framebuffer can use
* all the buffer types.
*/
if (is_drm_iommu_supported(drm_dev))
return 0;
flags = exynos_gem->flags;
/*
* without iommu support, not support physically non-continuous memory
* for framebuffer.
*/
if (IS_NONCONTIG_BUFFER(flags)) {
DRM_ERROR("cannot use this gem memory type for fb.\n");
return -EINVAL;
}
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| inki dae | inki dae | 56 | 94.92% | 1 | 50.00% |
| joonyoung shim | joonyoung shim | 3 | 5.08% | 1 | 50.00% |
| Total | 59 | 100.00% | 2 | 100.00% |
static void exynos_drm_fb_destroy(struct drm_framebuffer *fb)
{
struct exynos_drm_fb *exynos_fb = to_exynos_fb(fb);
unsigned int i;
drm_framebuffer_cleanup(fb);
for (i = 0; i < ARRAY_SIZE(exynos_fb->exynos_gem); i++) {
struct drm_gem_object *obj;
if (exynos_fb->exynos_gem[i] == NULL)
continue;
obj = &exynos_fb->exynos_gem[i]->base;
drm_gem_object_unreference_unlocked(obj);
}
kfree(exynos_fb);
exynos_fb = NULL;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| laurent pinchart | laurent pinchart | 55 | 59.14% | 1 | 33.33% |
| inki dae | inki dae | 35 | 37.63% | 1 | 33.33% |
| joonyoung shim | joonyoung shim | 3 | 3.23% | 1 | 33.33% |
| Total | 93 | 100.00% | 3 | 100.00% |
static int exynos_drm_fb_create_handle(struct drm_framebuffer *fb,
struct drm_file *file_priv,
unsigned int *handle)
{
struct exynos_drm_fb *exynos_fb = to_exynos_fb(fb);
return drm_gem_handle_create(file_priv,
&exynos_fb->exynos_gem[0]->base, handle);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| inki dae | inki dae | 45 | 91.84% | 1 | 33.33% |
| seung-woo kim | seung-woo kim | 3 | 6.12% | 1 | 33.33% |
| joonyoung shim | joonyoung shim | 1 | 2.04% | 1 | 33.33% |
| Total | 49 | 100.00% | 3 | 100.00% |
static const struct drm_framebuffer_funcs exynos_drm_fb_funcs = {
.destroy = exynos_drm_fb_destroy,
.create_handle = exynos_drm_fb_create_handle,
};
struct drm_framebuffer *
exynos_drm_framebuffer_init(struct drm_device *dev,
const struct drm_mode_fb_cmd2 *mode_cmd,
struct exynos_drm_gem **exynos_gem,
int count)
{
struct exynos_drm_fb *exynos_fb;
int i;
int ret;
exynos_fb = kzalloc(sizeof(*exynos_fb), GFP_KERNEL);
if (!exynos_fb)
return ERR_PTR(-ENOMEM);
for (i = 0; i < count; i++) {
ret = check_fb_gem_memory_type(dev, exynos_gem[i]);
if (ret < 0)
goto err;
exynos_fb->exynos_gem[i] = exynos_gem[i];
exynos_fb->dma_addr[i] = exynos_gem[i]->dma_addr
+ mode_cmd->offsets[i];
}
drm_helper_mode_fill_fb_struct(&exynos_fb->fb, mode_cmd);
ret = drm_framebuffer_init(dev, &exynos_fb->fb, &exynos_drm_fb_funcs);
if (ret < 0) {
DRM_ERROR("failed to initialize framebuffer\n");
goto err;
}
return &exynos_fb->fb;
err:
kfree(exynos_fb);
return ERR_PTR(ret);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| joonyoung shim | joonyoung shim | 91 | 47.40% | 5 | 50.00% |
| inki dae | inki dae | 76 | 39.58% | 2 | 20.00% |
| marek szyprowski | marek szyprowski | 21 | 10.94% | 1 | 10.00% |
| daniel vetter | daniel vetter | 3 | 1.56% | 1 | 10.00% |
| ville syrjala | ville syrjala | 1 | 0.52% | 1 | 10.00% |
| Total | 192 | 100.00% | 10 | 100.00% |
static struct drm_framebuffer *
exynos_user_fb_create(struct drm_device *dev, struct drm_file *file_priv,
const struct drm_mode_fb_cmd2 *mode_cmd)
{
struct exynos_drm_gem *exynos_gem[MAX_FB_BUFFER];
struct drm_gem_object *obj;
struct drm_framebuffer *fb;
int i;
int ret;
for (i = 0; i < drm_format_num_planes(mode_cmd->pixel_format); i++) {
obj = drm_gem_object_lookup(file_priv, mode_cmd->handles[i]);
if (!obj) {
DRM_ERROR("failed to lookup gem object\n");
ret = -ENOENT;
goto err;
}
exynos_gem[i] = to_exynos_gem(obj);
}
fb = exynos_drm_framebuffer_init(dev, mode_cmd, exynos_gem, i);
if (IS_ERR(fb)) {
ret = PTR_ERR(fb);
goto err;
}
return fb;
err:
while (i--)
drm_gem_object_unreference_unlocked(&exynos_gem[i]->base);
return ERR_PTR(ret);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| joonyoung shim | joonyoung shim | 67 | 39.18% | 4 | 36.36% |
| seung-woo kim | seung-woo kim | 47 | 27.49% | 1 | 9.09% |
| youngjun cho | youngjun cho | 25 | 14.62% | 1 | 9.09% |
| daniel vetter | daniel vetter | 24 | 14.04% | 1 | 9.09% |
| inki dae | inki dae | 7 | 4.09% | 3 | 27.27% |
| ville syrjala | ville syrjala | 1 | 0.58% | 1 | 9.09% |
| Total | 171 | 100.00% | 11 | 100.00% |
dma_addr_t exynos_drm_fb_dma_addr(struct drm_framebuffer *fb, int index)
{
struct exynos_drm_fb *exynos_fb = to_exynos_fb(fb);
if (index >= MAX_FB_BUFFER)
return DMA_ERROR_CODE;
return exynos_fb->dma_addr[index];
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| inki dae | inki dae | 21 | 52.50% | 2 | 50.00% |
| seung-woo kim | seung-woo kim | 14 | 35.00% | 1 | 25.00% |
| marek szyprowski | marek szyprowski | 5 | 12.50% | 1 | 25.00% |
| Total | 40 | 100.00% | 4 | 100.00% |
static const struct drm_mode_config_funcs exynos_drm_mode_config_funcs = {
.fb_create = exynos_user_fb_create,
.output_poll_changed = exynos_drm_output_poll_changed,
.atomic_check = drm_atomic_helper_check,
.atomic_commit = exynos_atomic_commit,
};
void exynos_drm_mode_config_init(struct drm_device *dev)
{
dev->mode_config.min_width = 0;
dev->mode_config.min_height = 0;
/*
* set max width and height as default value(4096x4096).
* this value would be used to check framebuffer size limitation
* at drm_mode_addfb().
*/
dev->mode_config.max_width = 4096;
dev->mode_config.max_height = 4096;
dev->mode_config.funcs = &exynos_drm_mode_config_funcs;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| inki dae | inki dae | 52 | 100.00% | 1 | 100.00% |
| Total | 52 | 100.00% | 1 | 100.00% |
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| inki dae | inki dae | 357 | 46.36% | 6 | 21.43% |
| joonyoung shim | joonyoung shim | 169 | 21.95% | 7 | 25.00% |
| seung-woo kim | seung-woo kim | 77 | 10.00% | 2 | 7.14% |
| laurent pinchart | laurent pinchart | 56 | 7.27% | 2 | 7.14% |
| marek szyprowski | marek szyprowski | 32 | 4.16% | 1 | 3.57% |
| daniel vetter | daniel vetter | 27 | 3.51% | 1 | 3.57% |
| youngjun cho | youngjun cho | 25 | 3.25% | 1 | 3.57% |
| gustavo padovan | gustavo padovan | 16 | 2.08% | 3 | 10.71% |
| david howells | david howells | 4 | 0.52% | 1 | 3.57% |
| andrzej hajda | andrzej hajda | 3 | 0.39% | 1 | 3.57% |
| ville syrjala | ville syrjala | 3 | 0.39% | 2 | 7.14% |
| sean paul | sean paul | 1 | 0.13% | 1 | 3.57% |
| Total | 770 | 100.00% | 28 | 100.00% |
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