diff options
Diffstat (limited to 'drivers/gpu/drm/cirrus/cirrus_fbdev.c')
| -rw-r--r-- | drivers/gpu/drm/cirrus/cirrus_fbdev.c | 315 |
1 files changed, 0 insertions, 315 deletions
diff --git a/drivers/gpu/drm/cirrus/cirrus_fbdev.c b/drivers/gpu/drm/cirrus/cirrus_fbdev.c deleted file mode 100644 index 39df62acac69..000000000000 --- a/drivers/gpu/drm/cirrus/cirrus_fbdev.c +++ /dev/null @@ -1,315 +0,0 @@ -/* - * 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_util.h> -#include <drm/drm_fb_helper.h> -#include <drm/drm_crtc_helper.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->format->cpp[0]; - int ret = -EBUSY; - bool unmap = false; - bool store_for_later = false; - int x2, y2; - unsigned long flags; - - obj = afbdev->gfb->obj[0]; - 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->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); -} - -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); -} - -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); -} - -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); -} - - -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; - u32 size; - struct drm_gem_object *gobj; - int ret = 0; - - bpp = drm_format_plane_cpp(mode_cmd->pixel_format, 0) * 8; - - 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; -} - -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; - 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; - } - - sysram = vmalloc(size); - if (!sysram) - return -ENOMEM; - - info = drm_fb_helper_alloc_fbi(helper); - if (IS_ERR(info)) { - ret = PTR_ERR(info); - goto err_vfree; - } - - info->par = gfbdev; - - fb = kzalloc(sizeof(*fb), GFP_KERNEL); - if (!fb) { - ret = -ENOMEM; - goto err_drm_gem_object_put_unlocked; - } - - ret = cirrus_framebuffer_init(cdev->dev, fb, &mode_cmd, gobj); - if (ret) - goto err_kfree; - - gfbdev->sysram = sysram; - gfbdev->size = size; - gfbdev->gfb = fb; - - /* setup helper */ - gfbdev->helper.fb = fb; - - strcpy(info->fix.id, "cirrusdrmfb"); - - info->fbops = &cirrusfb_ops; - - drm_fb_helper_fill_fix(info, fb->pitches[0], fb->format->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->format->depth); - DRM_INFO(" pitch is %d\n", fb->pitches[0]); - - return 0; - -err_kfree: - kfree(fb); -err_drm_gem_object_put_unlocked: - drm_gem_object_put_unlocked(gobj); -err_vfree: - vfree(sysram); - return ret; -} - -static int cirrus_fbdev_destroy(struct drm_device *dev, - struct cirrus_fbdev *gfbdev) -{ - struct drm_framebuffer *gfb = gfbdev->gfb; - - drm_helper_force_disable_all(dev); - - drm_fb_helper_unregister_fbi(&gfbdev->helper); - - vfree(gfbdev->sysram); - drm_fb_helper_fini(&gfbdev->helper); - if (gfb) - drm_framebuffer_put(gfb); - - return 0; -} - -static const struct drm_fb_helper_funcs cirrus_fb_helper_funcs = { - .fb_probe = cirrusfb_create, -}; - -int cirrus_fbdev_init(struct cirrus_device *cdev) -{ - struct cirrus_fbdev *gfbdev; - int ret; - - /*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, - 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, cirrus_bpp); -} - -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; -} |