Release 4.7 drivers/gpu/drm/cirrus/cirrus_fbdev.c
/*
* Copyright 2012 Red Hat
*
* This file is subject to the terms and conditions of the GNU General
* Public License version 2. See the file COPYING in the main
* directory of this archive for more details.
*
* Authors: Matthew Garrett
* Dave Airlie
*/
#include <linux/module.h>
#include <drm/drmP.h>
#include <drm/drm_fb_helper.h>
#include <drm/drm_crtc_helper.h>
#include <linux/fb.h>
#include "cirrus_drv.h"
static void cirrus_dirty_update(struct cirrus_fbdev *afbdev,
int x, int y, int width, int height)
{
int i;
struct drm_gem_object *obj;
struct cirrus_bo *bo;
int src_offset, dst_offset;
int bpp = (afbdev->gfb.base.bits_per_pixel + 7)/8;
int ret = -EBUSY;
bool unmap = false;
bool store_for_later = false;
int x2, y2;
unsigned long flags;
obj = afbdev->gfb.obj;
bo = gem_to_cirrus_bo(obj);
/*
* try and reserve the BO, if we fail with busy
* then the BO is being moved and we should
* store up the damage until later.
*/
if (drm_can_sleep())
ret = cirrus_bo_reserve(bo, true);
if (ret) {
if (ret != -EBUSY)
return;
store_for_later = true;
}
x2 = x + width - 1;
y2 = y + height - 1;
spin_lock_irqsave(&afbdev->dirty_lock, flags);
if (afbdev->y1 < y)
y = afbdev->y1;
if (afbdev->y2 > y2)
y2 = afbdev->y2;
if (afbdev->x1 < x)
x = afbdev->x1;
if (afbdev->x2 > x2)
x2 = afbdev->x2;
if (store_for_later) {
afbdev->x1 = x;
afbdev->x2 = x2;
afbdev->y1 = y;
afbdev->y2 = y2;
spin_unlock_irqrestore(&afbdev->dirty_lock, flags);
return;
}
afbdev->x1 = afbdev->y1 = INT_MAX;
afbdev->x2 = afbdev->y2 = 0;
spin_unlock_irqrestore(&afbdev->dirty_lock, flags);
if (!bo->kmap.virtual) {
ret = ttm_bo_kmap(&bo->bo, 0, bo->bo.num_pages, &bo->kmap);
if (ret) {
DRM_ERROR("failed to kmap fb updates\n");
cirrus_bo_unreserve(bo);
return;
}
unmap = true;
}
for (i = y; i < y + height; i++) {
/* assume equal stride for now */
src_offset = dst_offset = i * afbdev->gfb.base.pitches[0] + (x * bpp);
memcpy_toio(bo->kmap.virtual + src_offset, afbdev->sysram + src_offset, width * bpp);
}
if (unmap)
ttm_bo_kunmap(&bo->kmap);
cirrus_bo_unreserve(bo);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| dave airlie | dave airlie | 411 | 98.33% | 3 | 75.00% |
| maarten lankhorst | maarten lankhorst | 7 | 1.67% | 1 | 25.00% |
| Total | 418 | 100.00% | 4 | 100.00% |
static void cirrus_fillrect(struct fb_info *info,
const struct fb_fillrect *rect)
{
struct cirrus_fbdev *afbdev = info->par;
drm_fb_helper_sys_fillrect(info, rect);
cirrus_dirty_update(afbdev, rect->dx, rect->dy, rect->width,
rect->height);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| dave airlie | dave airlie | 53 | 98.15% | 1 | 50.00% |
| archit taneja | archit taneja | 1 | 1.85% | 1 | 50.00% |
| Total | 54 | 100.00% | 2 | 100.00% |
static void cirrus_copyarea(struct fb_info *info,
const struct fb_copyarea *area)
{
struct cirrus_fbdev *afbdev = info->par;
drm_fb_helper_sys_copyarea(info, area);
cirrus_dirty_update(afbdev, area->dx, area->dy, area->width,
area->height);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| dave airlie | dave airlie | 53 | 98.15% | 1 | 50.00% |
| archit taneja | archit taneja | 1 | 1.85% | 1 | 50.00% |
| Total | 54 | 100.00% | 2 | 100.00% |
static void cirrus_imageblit(struct fb_info *info,
const struct fb_image *image)
{
struct cirrus_fbdev *afbdev = info->par;
drm_fb_helper_sys_imageblit(info, image);
cirrus_dirty_update(afbdev, image->dx, image->dy, image->width,
image->height);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| dave airlie | dave airlie | 53 | 98.15% | 1 | 50.00% |
| archit taneja | archit taneja | 1 | 1.85% | 1 | 50.00% |
| Total | 54 | 100.00% | 2 | 100.00% |
static struct fb_ops cirrusfb_ops = {
.owner = THIS_MODULE,
.fb_check_var = drm_fb_helper_check_var,
.fb_set_par = drm_fb_helper_set_par,
.fb_fillrect = cirrus_fillrect,
.fb_copyarea = cirrus_copyarea,
.fb_imageblit = cirrus_imageblit,
.fb_pan_display = drm_fb_helper_pan_display,
.fb_blank = drm_fb_helper_blank,
.fb_setcmap = drm_fb_helper_setcmap,
};
static int cirrusfb_create_object(struct cirrus_fbdev *afbdev,
const struct drm_mode_fb_cmd2 *mode_cmd,
struct drm_gem_object **gobj_p)
{
struct drm_device *dev = afbdev->helper.dev;
struct cirrus_device *cdev = dev->dev_private;
u32 bpp, depth;
u32 size;
struct drm_gem_object *gobj;
int ret = 0;
drm_fb_get_bpp_depth(mode_cmd->pixel_format, &depth, &bpp);
if (!cirrus_check_framebuffer(cdev, mode_cmd->width, mode_cmd->height,
bpp, mode_cmd->pitches[0]))
return -EINVAL;
size = mode_cmd->pitches[0] * mode_cmd->height;
ret = cirrus_gem_create(dev, size, true, &gobj);
if (ret)
return ret;
*gobj_p = gobj;
return ret;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| dave airlie | dave airlie | 114 | 78.62% | 1 | 33.33% |
| zach reizner | zach reizner | 30 | 20.69% | 1 | 33.33% |
| ville syrjala | ville syrjala | 1 | 0.69% | 1 | 33.33% |
| Total | 145 | 100.00% | 3 | 100.00% |
static int cirrusfb_create(struct drm_fb_helper *helper,
struct drm_fb_helper_surface_size *sizes)
{
struct cirrus_fbdev *gfbdev =
container_of(helper, struct cirrus_fbdev, helper);
struct cirrus_device *cdev = gfbdev->helper.dev->dev_private;
struct fb_info *info;
struct drm_framebuffer *fb;
struct drm_mode_fb_cmd2 mode_cmd;
void *sysram;
struct drm_gem_object *gobj = NULL;
struct cirrus_bo *bo = NULL;
int size, ret;
mode_cmd.width = sizes->surface_width;
mode_cmd.height = sizes->surface_height;
mode_cmd.pitches[0] = mode_cmd.width * ((sizes->surface_bpp + 7) / 8);
mode_cmd.pixel_format = drm_mode_legacy_fb_format(sizes->surface_bpp,
sizes->surface_depth);
size = mode_cmd.pitches[0] * mode_cmd.height;
ret = cirrusfb_create_object(gfbdev, &mode_cmd, &gobj);
if (ret) {
DRM_ERROR("failed to create fbcon backing object %d\n", ret);
return ret;
}
bo = gem_to_cirrus_bo(gobj);
sysram = vmalloc(size);
if (!sysram)
return -ENOMEM;
info = drm_fb_helper_alloc_fbi(helper);
if (IS_ERR(info))
return PTR_ERR(info);
info->par = gfbdev;
ret = cirrus_framebuffer_init(cdev->dev, &gfbdev->gfb, &mode_cmd, gobj);
if (ret)
return ret;
gfbdev->sysram = sysram;
gfbdev->size = size;
fb = &gfbdev->gfb.base;
if (!fb) {
DRM_INFO("fb is NULL\n");
return -EINVAL;
}
/* setup helper */
gfbdev->helper.fb = fb;
strcpy(info->fix.id, "cirrusdrmfb");
info->flags = FBINFO_DEFAULT;
info->fbops = &cirrusfb_ops;
drm_fb_helper_fill_fix(info, fb->pitches[0], fb->depth);
drm_fb_helper_fill_var(info, &gfbdev->helper, sizes->fb_width,
sizes->fb_height);
/* setup aperture base/size for vesafb takeover */
info->apertures->ranges[0].base = cdev->dev->mode_config.fb_base;
info->apertures->ranges[0].size = cdev->mc.vram_size;
info->fix.smem_start = cdev->dev->mode_config.fb_base;
info->fix.smem_len = cdev->mc.vram_size;
info->screen_base = sysram;
info->screen_size = size;
info->fix.mmio_start = 0;
info->fix.mmio_len = 0;
DRM_INFO("fb mappable at 0x%lX\n", info->fix.smem_start);
DRM_INFO("vram aper at 0x%lX\n", (unsigned long)info->fix.smem_start);
DRM_INFO("size %lu\n", (unsigned long)info->fix.smem_len);
DRM_INFO("fb depth is %d\n", fb->depth);
DRM_INFO(" pitch is %d\n", fb->pitches[0]);
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| dave airlie | dave airlie | 460 | 89.84% | 1 | 20.00% |
| martin koegler | martin koegler | 26 | 5.08% | 1 | 20.00% |
| daniel vetter | daniel vetter | 11 | 2.15% | 1 | 20.00% |
| archit taneja | archit taneja | 9 | 1.76% | 1 | 20.00% |
| fabian frederick | fabian frederick | 6 | 1.17% | 1 | 20.00% |
| Total | 512 | 100.00% | 5 | 100.00% |
static int cirrus_fbdev_destroy(struct drm_device *dev,
struct cirrus_fbdev *gfbdev)
{
struct cirrus_framebuffer *gfb = &gfbdev->gfb;
drm_fb_helper_unregister_fbi(&gfbdev->helper);
drm_fb_helper_release_fbi(&gfbdev->helper);
if (gfb->obj) {
drm_gem_object_unreference_unlocked(gfb->obj);
gfb->obj = NULL;
}
vfree(gfbdev->sysram);
drm_fb_helper_fini(&gfbdev->helper);
drm_framebuffer_unregister_private(&gfb->base);
drm_framebuffer_cleanup(&gfb->base);
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| dave airlie | dave airlie | 83 | 85.57% | 1 | 33.33% |
| daniel vetter | daniel vetter | 8 | 8.25% | 1 | 33.33% |
| archit taneja | archit taneja | 6 | 6.19% | 1 | 33.33% |
| Total | 97 | 100.00% | 3 | 100.00% |
static const struct drm_fb_helper_funcs cirrus_fb_helper_funcs = {
.gamma_set = cirrus_crtc_fb_gamma_set,
.gamma_get = cirrus_crtc_fb_gamma_get,
.fb_probe = cirrusfb_create,
};
int cirrus_fbdev_init(struct cirrus_device *cdev)
{
struct cirrus_fbdev *gfbdev;
int ret;
int bpp_sel = 24;
/*bpp_sel = 8;*/
gfbdev = kzalloc(sizeof(struct cirrus_fbdev), GFP_KERNEL);
if (!gfbdev)
return -ENOMEM;
cdev->mode_info.gfbdev = gfbdev;
spin_lock_init(&gfbdev->dirty_lock);
drm_fb_helper_prepare(cdev->dev, &gfbdev->helper,
&cirrus_fb_helper_funcs);
ret = drm_fb_helper_init(cdev->dev, &gfbdev->helper,
cdev->num_crtc, CIRRUSFB_CONN_LIMIT);
if (ret)
return ret;
ret = drm_fb_helper_single_add_all_connectors(&gfbdev->helper);
if (ret)
return ret;
/* disable all the possible outputs/crtcs before entering KMS mode */
drm_helper_disable_unused_functions(cdev->dev);
return drm_fb_helper_initial_config(&gfbdev->helper, bpp_sel);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| dave airlie | dave airlie | 108 | 77.14% | 2 | 40.00% |
| thierry reding | thierry reding | 24 | 17.14% | 2 | 40.00% |
| daniel vetter | daniel vetter | 8 | 5.71% | 1 | 20.00% |
| Total | 140 | 100.00% | 5 | 100.00% |
void cirrus_fbdev_fini(struct cirrus_device *cdev)
{
if (!cdev->mode_info.gfbdev)
return;
cirrus_fbdev_destroy(cdev->dev, cdev->mode_info.gfbdev);
kfree(cdev->mode_info.gfbdev);
cdev->mode_info.gfbdev = NULL;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| dave airlie | dave airlie | 50 | 100.00% | 1 | 100.00% |
| Total | 50 | 100.00% | 1 | 100.00% |
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| dave airlie | dave airlie | 1472 | 90.98% | 3 | 18.75% |
| daniel vetter | daniel vetter | 31 | 1.92% | 3 | 18.75% |
| zach reizner | zach reizner | 30 | 1.85% | 1 | 6.25% |
| martin koegler | martin koegler | 26 | 1.61% | 1 | 6.25% |
| thierry reding | thierry reding | 25 | 1.55% | 3 | 18.75% |
| archit taneja | archit taneja | 18 | 1.11% | 1 | 6.25% |
| maarten lankhorst | maarten lankhorst | 7 | 0.43% | 1 | 6.25% |
| fabian frederick | fabian frederick | 6 | 0.37% | 1 | 6.25% |
| david howells | david howells | 2 | 0.12% | 1 | 6.25% |
| ville syrjala | ville syrjala | 1 | 0.06% | 1 | 6.25% |
| Total | 1618 | 100.00% | 16 | 100.00% |
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