![Cihangir Akturk](/assets/img/avatar_default.png)
Use drm_*_get() and drm_*_put() helpers instead of drm_*_reference() and drm_*_unreference() helpers. drm_*_reference() and drm_*_unreference() functions are just compatibility alias for drm_*_get() and drm_*_put() and should not be used by new code. So convert all users of compatibility functions to use the new APIs. Generated by: scripts/coccinelle/api/drm-get-put.cocci Signed-off-by: Cihangir Akturk <cakturk@gmail.com> Signed-off-by: Sean Paul <seanpaul@chromium.org> Link: https://patchwork.freedesktop.org/patch/msgid/1502454794-28558-15-git-send-email-cakturk@gmail.com
315 lines
7.2 KiB
C
315 lines
7.2 KiB
C
/*
|
|
* Copyright 2010 Matt Turner.
|
|
* 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
|
|
* Matt Turner
|
|
* Dave Airlie
|
|
*/
|
|
#include <linux/module.h>
|
|
#include <drm/drmP.h>
|
|
#include <drm/drm_fb_helper.h>
|
|
#include <drm/drm_crtc_helper.h>
|
|
|
|
#include "mgag200_drv.h"
|
|
|
|
static void mga_dirty_update(struct mga_fbdev *mfbdev,
|
|
int x, int y, int width, int height)
|
|
{
|
|
int i;
|
|
struct drm_gem_object *obj;
|
|
struct mgag200_bo *bo;
|
|
int src_offset, dst_offset;
|
|
int bpp = mfbdev->mfb.base.format->cpp[0];
|
|
int ret = -EBUSY;
|
|
bool unmap = false;
|
|
bool store_for_later = false;
|
|
int x2, y2;
|
|
unsigned long flags;
|
|
|
|
obj = mfbdev->mfb.obj;
|
|
bo = gem_to_mga_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 = mgag200_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(&mfbdev->dirty_lock, flags);
|
|
|
|
if (mfbdev->y1 < y)
|
|
y = mfbdev->y1;
|
|
if (mfbdev->y2 > y2)
|
|
y2 = mfbdev->y2;
|
|
if (mfbdev->x1 < x)
|
|
x = mfbdev->x1;
|
|
if (mfbdev->x2 > x2)
|
|
x2 = mfbdev->x2;
|
|
|
|
if (store_for_later) {
|
|
mfbdev->x1 = x;
|
|
mfbdev->x2 = x2;
|
|
mfbdev->y1 = y;
|
|
mfbdev->y2 = y2;
|
|
spin_unlock_irqrestore(&mfbdev->dirty_lock, flags);
|
|
return;
|
|
}
|
|
|
|
mfbdev->x1 = mfbdev->y1 = INT_MAX;
|
|
mfbdev->x2 = mfbdev->y2 = 0;
|
|
spin_unlock_irqrestore(&mfbdev->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");
|
|
mgag200_bo_unreserve(bo);
|
|
return;
|
|
}
|
|
unmap = true;
|
|
}
|
|
for (i = y; i <= y2; i++) {
|
|
/* assume equal stride for now */
|
|
src_offset = dst_offset = i * mfbdev->mfb.base.pitches[0] + (x * bpp);
|
|
memcpy_toio(bo->kmap.virtual + src_offset, mfbdev->sysram + src_offset, (x2 - x + 1) * bpp);
|
|
|
|
}
|
|
if (unmap)
|
|
ttm_bo_kunmap(&bo->kmap);
|
|
|
|
mgag200_bo_unreserve(bo);
|
|
}
|
|
|
|
static void mga_fillrect(struct fb_info *info,
|
|
const struct fb_fillrect *rect)
|
|
{
|
|
struct mga_fbdev *mfbdev = info->par;
|
|
drm_fb_helper_sys_fillrect(info, rect);
|
|
mga_dirty_update(mfbdev, rect->dx, rect->dy, rect->width,
|
|
rect->height);
|
|
}
|
|
|
|
static void mga_copyarea(struct fb_info *info,
|
|
const struct fb_copyarea *area)
|
|
{
|
|
struct mga_fbdev *mfbdev = info->par;
|
|
drm_fb_helper_sys_copyarea(info, area);
|
|
mga_dirty_update(mfbdev, area->dx, area->dy, area->width,
|
|
area->height);
|
|
}
|
|
|
|
static void mga_imageblit(struct fb_info *info,
|
|
const struct fb_image *image)
|
|
{
|
|
struct mga_fbdev *mfbdev = info->par;
|
|
drm_fb_helper_sys_imageblit(info, image);
|
|
mga_dirty_update(mfbdev, image->dx, image->dy, image->width,
|
|
image->height);
|
|
}
|
|
|
|
|
|
static struct fb_ops mgag200fb_ops = {
|
|
.owner = THIS_MODULE,
|
|
.fb_check_var = drm_fb_helper_check_var,
|
|
.fb_set_par = drm_fb_helper_set_par,
|
|
.fb_fillrect = mga_fillrect,
|
|
.fb_copyarea = mga_copyarea,
|
|
.fb_imageblit = mga_imageblit,
|
|
.fb_pan_display = drm_fb_helper_pan_display,
|
|
.fb_blank = drm_fb_helper_blank,
|
|
.fb_setcmap = drm_fb_helper_setcmap,
|
|
};
|
|
|
|
static int mgag200fb_create_object(struct mga_fbdev *afbdev,
|
|
const struct drm_mode_fb_cmd2 *mode_cmd,
|
|
struct drm_gem_object **gobj_p)
|
|
{
|
|
struct drm_device *dev = afbdev->helper.dev;
|
|
u32 size;
|
|
struct drm_gem_object *gobj;
|
|
int ret = 0;
|
|
|
|
size = mode_cmd->pitches[0] * mode_cmd->height;
|
|
ret = mgag200_gem_create(dev, size, true, &gobj);
|
|
if (ret)
|
|
return ret;
|
|
|
|
*gobj_p = gobj;
|
|
return ret;
|
|
}
|
|
|
|
static int mgag200fb_create(struct drm_fb_helper *helper,
|
|
struct drm_fb_helper_surface_size *sizes)
|
|
{
|
|
struct mga_fbdev *mfbdev =
|
|
container_of(helper, struct mga_fbdev, helper);
|
|
struct drm_device *dev = mfbdev->helper.dev;
|
|
struct drm_mode_fb_cmd2 mode_cmd;
|
|
struct mga_device *mdev = dev->dev_private;
|
|
struct fb_info *info;
|
|
struct drm_framebuffer *fb;
|
|
struct drm_gem_object *gobj = NULL;
|
|
int ret;
|
|
void *sysram;
|
|
int size;
|
|
|
|
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 = mgag200fb_create_object(mfbdev, &mode_cmd, &gobj);
|
|
if (ret) {
|
|
DRM_ERROR("failed to create fbcon backing object %d\n", ret);
|
|
return ret;
|
|
}
|
|
|
|
sysram = vmalloc(size);
|
|
if (!sysram) {
|
|
ret = -ENOMEM;
|
|
goto err_sysram;
|
|
}
|
|
|
|
info = drm_fb_helper_alloc_fbi(helper);
|
|
if (IS_ERR(info)) {
|
|
ret = PTR_ERR(info);
|
|
goto err_alloc_fbi;
|
|
}
|
|
|
|
info->par = mfbdev;
|
|
|
|
ret = mgag200_framebuffer_init(dev, &mfbdev->mfb, &mode_cmd, gobj);
|
|
if (ret)
|
|
goto err_alloc_fbi;
|
|
|
|
mfbdev->sysram = sysram;
|
|
mfbdev->size = size;
|
|
|
|
fb = &mfbdev->mfb.base;
|
|
|
|
/* setup helper */
|
|
mfbdev->helper.fb = fb;
|
|
|
|
strcpy(info->fix.id, "mgadrmfb");
|
|
|
|
info->fbops = &mgag200fb_ops;
|
|
|
|
/* setup aperture base/size for vesafb takeover */
|
|
info->apertures->ranges[0].base = mdev->dev->mode_config.fb_base;
|
|
info->apertures->ranges[0].size = mdev->mc.vram_size;
|
|
|
|
drm_fb_helper_fill_fix(info, fb->pitches[0], fb->format->depth);
|
|
drm_fb_helper_fill_var(info, &mfbdev->helper, sizes->fb_width,
|
|
sizes->fb_height);
|
|
|
|
info->screen_base = sysram;
|
|
info->screen_size = size;
|
|
info->pixmap.flags = FB_PIXMAP_SYSTEM;
|
|
|
|
DRM_DEBUG_KMS("allocated %dx%d\n",
|
|
fb->width, fb->height);
|
|
|
|
return 0;
|
|
|
|
err_alloc_fbi:
|
|
vfree(sysram);
|
|
err_sysram:
|
|
drm_gem_object_put_unlocked(gobj);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int mga_fbdev_destroy(struct drm_device *dev,
|
|
struct mga_fbdev *mfbdev)
|
|
{
|
|
struct mga_framebuffer *mfb = &mfbdev->mfb;
|
|
|
|
drm_fb_helper_unregister_fbi(&mfbdev->helper);
|
|
|
|
if (mfb->obj) {
|
|
drm_gem_object_put_unlocked(mfb->obj);
|
|
mfb->obj = NULL;
|
|
}
|
|
drm_fb_helper_fini(&mfbdev->helper);
|
|
vfree(mfbdev->sysram);
|
|
drm_framebuffer_unregister_private(&mfb->base);
|
|
drm_framebuffer_cleanup(&mfb->base);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct drm_fb_helper_funcs mga_fb_helper_funcs = {
|
|
.fb_probe = mgag200fb_create,
|
|
};
|
|
|
|
int mgag200_fbdev_init(struct mga_device *mdev)
|
|
{
|
|
struct mga_fbdev *mfbdev;
|
|
int ret;
|
|
int bpp_sel = 32;
|
|
|
|
/* prefer 16bpp on low end gpus with limited VRAM */
|
|
if (IS_G200_SE(mdev) && mdev->mc.vram_size < (2048*1024))
|
|
bpp_sel = 16;
|
|
|
|
mfbdev = devm_kzalloc(mdev->dev->dev, sizeof(struct mga_fbdev), GFP_KERNEL);
|
|
if (!mfbdev)
|
|
return -ENOMEM;
|
|
|
|
mdev->mfbdev = mfbdev;
|
|
spin_lock_init(&mfbdev->dirty_lock);
|
|
|
|
drm_fb_helper_prepare(mdev->dev, &mfbdev->helper, &mga_fb_helper_funcs);
|
|
|
|
ret = drm_fb_helper_init(mdev->dev, &mfbdev->helper,
|
|
MGAG200FB_CONN_LIMIT);
|
|
if (ret)
|
|
goto err_fb_helper;
|
|
|
|
ret = drm_fb_helper_single_add_all_connectors(&mfbdev->helper);
|
|
if (ret)
|
|
goto err_fb_setup;
|
|
|
|
/* disable all the possible outputs/crtcs before entering KMS mode */
|
|
drm_helper_disable_unused_functions(mdev->dev);
|
|
|
|
ret = drm_fb_helper_initial_config(&mfbdev->helper, bpp_sel);
|
|
if (ret)
|
|
goto err_fb_setup;
|
|
|
|
return 0;
|
|
|
|
err_fb_setup:
|
|
drm_fb_helper_fini(&mfbdev->helper);
|
|
err_fb_helper:
|
|
mdev->mfbdev = NULL;
|
|
|
|
return ret;
|
|
}
|
|
|
|
void mgag200_fbdev_fini(struct mga_device *mdev)
|
|
{
|
|
if (!mdev->mfbdev)
|
|
return;
|
|
|
|
mga_fbdev_destroy(mdev->dev, mdev->mfbdev);
|
|
}
|