diff options
Diffstat (limited to 'drivers/gpu/drm/ast/ast_fb.c')
| -rw-r--r-- | drivers/gpu/drm/ast/ast_fb.c | 346 |
1 files changed, 0 insertions, 346 deletions
diff --git a/drivers/gpu/drm/ast/ast_fb.c b/drivers/gpu/drm/ast/ast_fb.c deleted file mode 100644 index 8200b25dad16..000000000000 --- a/drivers/gpu/drm/ast/ast_fb.c +++ /dev/null @@ -1,346 +0,0 @@ -/* - * Copyright 2012 Red Hat Inc. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the - * "Software"), to deal in the Software without restriction, including - * without limitation the rights to use, copy, modify, merge, publish, - * distribute, sub license, and/or sell copies of the Software, and to - * permit persons to whom the Software is furnished to do so, subject to - * the following conditions: - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL - * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, - * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR - * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE - * USE OR OTHER DEALINGS IN THE SOFTWARE. - * - * The above copyright notice and this permission notice (including the - * next paragraph) shall be included in all copies or substantial portions - * of the Software. - * - */ -/* - * Authors: Dave Airlie <airlied@redhat.com> - */ -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/errno.h> -#include <linux/string.h> -#include <linux/mm.h> -#include <linux/tty.h> -#include <linux/sysrq.h> -#include <linux/delay.h> -#include <linux/init.h> - - -#include <drm/drmP.h> -#include <drm/drm_crtc.h> -#include <drm/drm_fb_helper.h> -#include <drm/drm_util.h> -#include <drm/drm_crtc_helper.h> - -#include "ast_drv.h" - -static void ast_dirty_update(struct ast_fbdev *afbdev, - int x, int y, int width, int height) -{ - int i; - struct drm_gem_vram_object *gbo; - int src_offset, dst_offset; - int bpp = afbdev->afb.base.format->cpp[0]; - int ret; - u8 *dst; - bool unmap = false; - bool store_for_later = false; - int x2, y2; - unsigned long flags; - - gbo = drm_gem_vram_of_gem(afbdev->afb.obj); - - if (drm_can_sleep()) { - /* We pin the BO so it won't be moved during the - * update. The actual location, video RAM or system - * memory, is not important. - */ - ret = drm_gem_vram_pin(gbo, 0); - if (ret) { - if (ret != -EBUSY) - return; - store_for_later = true; - } - } else { - 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); - - dst = drm_gem_vram_kmap(gbo, false, NULL); - if (IS_ERR(dst)) { - DRM_ERROR("failed to kmap fb updates\n"); - goto out; - } else if (!dst) { - dst = drm_gem_vram_kmap(gbo, true, NULL); - if (IS_ERR(dst)) { - DRM_ERROR("failed to kmap fb updates\n"); - goto out; - } - unmap = true; - } - - for (i = y; i <= y2; i++) { - /* assume equal stride for now */ - src_offset = dst_offset = - i * afbdev->afb.base.pitches[0] + (x * bpp); - memcpy_toio(dst + dst_offset, afbdev->sysram + src_offset, - (x2 - x + 1) * bpp); - } - - if (unmap) - drm_gem_vram_kunmap(gbo); - -out: - drm_gem_vram_unpin(gbo); -} - -static void ast_fillrect(struct fb_info *info, - const struct fb_fillrect *rect) -{ - struct ast_fbdev *afbdev = info->par; - drm_fb_helper_sys_fillrect(info, rect); - ast_dirty_update(afbdev, rect->dx, rect->dy, rect->width, - rect->height); -} - -static void ast_copyarea(struct fb_info *info, - const struct fb_copyarea *area) -{ - struct ast_fbdev *afbdev = info->par; - drm_fb_helper_sys_copyarea(info, area); - ast_dirty_update(afbdev, area->dx, area->dy, area->width, - area->height); -} - -static void ast_imageblit(struct fb_info *info, - const struct fb_image *image) -{ - struct ast_fbdev *afbdev = info->par; - drm_fb_helper_sys_imageblit(info, image); - ast_dirty_update(afbdev, image->dx, image->dy, image->width, - image->height); -} - -static struct fb_ops astfb_ops = { - .owner = THIS_MODULE, - .fb_check_var = drm_fb_helper_check_var, - .fb_set_par = drm_fb_helper_set_par, - .fb_fillrect = ast_fillrect, - .fb_copyarea = ast_copyarea, - .fb_imageblit = ast_imageblit, - .fb_pan_display = drm_fb_helper_pan_display, - .fb_blank = drm_fb_helper_blank, - .fb_setcmap = drm_fb_helper_setcmap, -}; - -static int astfb_create_object(struct ast_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 = ast_gem_create(dev, size, true, &gobj); - if (ret) - return ret; - - *gobj_p = gobj; - return ret; -} - -static int astfb_create(struct drm_fb_helper *helper, - struct drm_fb_helper_surface_size *sizes) -{ - struct ast_fbdev *afbdev = - container_of(helper, struct ast_fbdev, helper); - struct drm_device *dev = afbdev->helper.dev; - struct drm_mode_fb_cmd2 mode_cmd; - struct drm_framebuffer *fb; - struct fb_info *info; - int size, ret; - void *sysram; - struct drm_gem_object *gobj = NULL; - 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 = astfb_create_object(afbdev, &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 out; - } - ret = ast_framebuffer_init(dev, &afbdev->afb, &mode_cmd, gobj); - if (ret) - goto out; - - afbdev->sysram = sysram; - afbdev->size = size; - - fb = &afbdev->afb.base; - afbdev->helper.fb = fb; - - info->fbops = &astfb_ops; - - info->apertures->ranges[0].base = pci_resource_start(dev->pdev, 0); - info->apertures->ranges[0].size = pci_resource_len(dev->pdev, 0); - - drm_fb_helper_fill_info(info, &afbdev->helper, sizes); - - 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; - -out: - vfree(sysram); - return ret; -} - -static const struct drm_fb_helper_funcs ast_fb_helper_funcs = { - .fb_probe = astfb_create, -}; - -static void ast_fbdev_destroy(struct drm_device *dev, - struct ast_fbdev *afbdev) -{ - struct ast_framebuffer *afb = &afbdev->afb; - - drm_helper_force_disable_all(dev); - drm_fb_helper_unregister_fbi(&afbdev->helper); - - if (afb->obj) { - drm_gem_object_put_unlocked(afb->obj); - afb->obj = NULL; - } - drm_fb_helper_fini(&afbdev->helper); - - vfree(afbdev->sysram); - drm_framebuffer_unregister_private(&afb->base); - drm_framebuffer_cleanup(&afb->base); -} - -int ast_fbdev_init(struct drm_device *dev) -{ - struct ast_private *ast = dev->dev_private; - struct ast_fbdev *afbdev; - int ret; - - afbdev = kzalloc(sizeof(struct ast_fbdev), GFP_KERNEL); - if (!afbdev) - return -ENOMEM; - - ast->fbdev = afbdev; - spin_lock_init(&afbdev->dirty_lock); - - drm_fb_helper_prepare(dev, &afbdev->helper, &ast_fb_helper_funcs); - - ret = drm_fb_helper_init(dev, &afbdev->helper, 1); - if (ret) - goto free; - - ret = drm_fb_helper_single_add_all_connectors(&afbdev->helper); - if (ret) - goto fini; - - /* disable all the possible outputs/crtcs before entering KMS mode */ - drm_helper_disable_unused_functions(dev); - - ret = drm_fb_helper_initial_config(&afbdev->helper, 32); - if (ret) - goto fini; - - return 0; - -fini: - drm_fb_helper_fini(&afbdev->helper); -free: - kfree(afbdev); - return ret; -} - -void ast_fbdev_fini(struct drm_device *dev) -{ - struct ast_private *ast = dev->dev_private; - - if (!ast->fbdev) - return; - - ast_fbdev_destroy(dev, ast->fbdev); - kfree(ast->fbdev); - ast->fbdev = NULL; -} - -void ast_fbdev_set_suspend(struct drm_device *dev, int state) -{ - struct ast_private *ast = dev->dev_private; - - if (!ast->fbdev) - return; - - drm_fb_helper_set_suspend(&ast->fbdev->helper, state); -} - -void ast_fbdev_set_base(struct ast_private *ast, unsigned long gpu_addr) -{ - ast->fbdev->helper.fbdev->fix.smem_start = - ast->fbdev->helper.fbdev->apertures->ranges[0].base + gpu_addr; - ast->fbdev->helper.fbdev->fix.smem_len = ast->vram_size - gpu_addr; -} |