| /* |
| * Copyright © 2007 David Airlie |
| * |
| * 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, sublicense, |
| * 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 above copyright notice and this permission notice (including the next |
| * paragraph) shall be included in all copies or substantial portions of the |
| * Software. |
| * |
| * 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 NONINFRINGEMENT. IN NO EVENT SHALL |
| * THE AUTHORS OR COPYRIGHT HOLDERS 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. |
| * |
| * Authors: |
| * David Airlie |
| */ |
| |
| #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/fb.h> |
| #include <linux/init.h> |
| #include <linux/vga_switcheroo.h> |
| |
| #include "drmP.h" |
| #include "drm.h" |
| #include "drm_crtc.h" |
| #include "drm_fb_helper.h" |
| #include "intel_drv.h" |
| #include "i915_drm.h" |
| #include "i915_drv.h" |
| |
| static struct fb_ops intelfb_ops = { |
| .owner = THIS_MODULE, |
| .fb_check_var = drm_fb_helper_check_var, |
| .fb_set_par = drm_fb_helper_set_par, |
| .fb_fillrect = cfb_fillrect, |
| .fb_copyarea = cfb_copyarea, |
| .fb_imageblit = cfb_imageblit, |
| .fb_pan_display = drm_fb_helper_pan_display, |
| .fb_blank = drm_fb_helper_blank, |
| .fb_setcmap = drm_fb_helper_setcmap, |
| .fb_debug_enter = drm_fb_helper_debug_enter, |
| .fb_debug_leave = drm_fb_helper_debug_leave, |
| }; |
| |
| static int intelfb_create(struct intel_fbdev *ifbdev, |
| struct drm_fb_helper_surface_size *sizes) |
| { |
| struct drm_device *dev = ifbdev->helper.dev; |
| struct fb_info *info; |
| struct drm_framebuffer *fb; |
| struct drm_mode_fb_cmd mode_cmd; |
| struct drm_gem_object *fbo = NULL; |
| struct drm_i915_gem_object *obj_priv; |
| struct device *device = &dev->pdev->dev; |
| int size, ret, mmio_bar = IS_GEN2(dev) ? 1 : 0; |
| |
| /* we don't do packed 24bpp */ |
| if (sizes->surface_bpp == 24) |
| sizes->surface_bpp = 32; |
| |
| mode_cmd.width = sizes->surface_width; |
| mode_cmd.height = sizes->surface_height; |
| |
| mode_cmd.bpp = sizes->surface_bpp; |
| mode_cmd.pitch = ALIGN(mode_cmd.width * ((mode_cmd.bpp + 1) / 8), 64); |
| mode_cmd.depth = sizes->surface_depth; |
| |
| size = mode_cmd.pitch * mode_cmd.height; |
| size = ALIGN(size, PAGE_SIZE); |
| fbo = i915_gem_alloc_object(dev, size); |
| if (!fbo) { |
| DRM_ERROR("failed to allocate framebuffer\n"); |
| ret = -ENOMEM; |
| goto out; |
| } |
| obj_priv = to_intel_bo(fbo); |
| |
| mutex_lock(&dev->struct_mutex); |
| |
| /* Flush everything out, we'll be doing GTT only from now on */ |
| ret = intel_pin_and_fence_fb_obj(dev, fbo, false); |
| if (ret) { |
| DRM_ERROR("failed to pin fb: %d\n", ret); |
| goto out_unref; |
| } |
| |
| info = framebuffer_alloc(0, device); |
| if (!info) { |
| ret = -ENOMEM; |
| goto out_unpin; |
| } |
| |
| info->par = ifbdev; |
| |
| ret = intel_framebuffer_init(dev, &ifbdev->ifb, &mode_cmd, fbo); |
| if (ret) |
| goto out_unpin; |
| |
| fb = &ifbdev->ifb.base; |
| |
| ifbdev->helper.fb = fb; |
| ifbdev->helper.fbdev = info; |
| |
| strcpy(info->fix.id, "inteldrmfb"); |
| |
| info->flags = FBINFO_DEFAULT | FBINFO_CAN_FORCE_OUTPUT; |
| info->fbops = &intelfb_ops; |
| |
| /* setup aperture base/size for vesafb takeover */ |
| info->apertures = alloc_apertures(1); |
| if (!info->apertures) { |
| ret = -ENOMEM; |
| goto out_unpin; |
| } |
| info->apertures->ranges[0].base = dev->mode_config.fb_base; |
| if (!IS_GEN2(dev)) |
| info->apertures->ranges[0].size = pci_resource_len(dev->pdev, 2); |
| else |
| info->apertures->ranges[0].size = pci_resource_len(dev->pdev, 0); |
| |
| info->fix.smem_start = dev->mode_config.fb_base + obj_priv->gtt_offset; |
| info->fix.smem_len = size; |
| |
| info->screen_base = ioremap_wc(dev->agp->base + obj_priv->gtt_offset, |
| size); |
| if (!info->screen_base) { |
| ret = -ENOSPC; |
| goto out_unpin; |
| } |
| |
| ret = fb_alloc_cmap(&info->cmap, 256, 0); |
| if (ret) { |
| ret = -ENOMEM; |
| goto out_unpin; |
| } |
| info->screen_size = size; |
| |
| // memset(info->screen_base, 0, size); |
| |
| drm_fb_helper_fill_fix(info, fb->pitch, fb->depth); |
| drm_fb_helper_fill_var(info, &ifbdev->helper, sizes->fb_width, sizes->fb_height); |
| |
| /* FIXME: we really shouldn't expose mmio space at all */ |
| info->fix.mmio_start = pci_resource_start(dev->pdev, mmio_bar); |
| info->fix.mmio_len = pci_resource_len(dev->pdev, mmio_bar); |
| |
| info->pixmap.size = 64*1024; |
| info->pixmap.buf_align = 8; |
| info->pixmap.access_align = 32; |
| info->pixmap.flags = FB_PIXMAP_SYSTEM; |
| info->pixmap.scan_align = 1; |
| |
| DRM_DEBUG_KMS("allocated %dx%d fb: 0x%08x, bo %p\n", |
| fb->width, fb->height, |
| obj_priv->gtt_offset, fbo); |
| |
| |
| mutex_unlock(&dev->struct_mutex); |
| vga_switcheroo_client_fb_set(dev->pdev, info); |
| return 0; |
| |
| out_unpin: |
| i915_gem_object_unpin(fbo); |
| out_unref: |
| drm_gem_object_unreference(fbo); |
| mutex_unlock(&dev->struct_mutex); |
| out: |
| return ret; |
| } |
| |
| static int intel_fb_find_or_create_single(struct drm_fb_helper *helper, |
| struct drm_fb_helper_surface_size *sizes) |
| { |
| struct intel_fbdev *ifbdev = (struct intel_fbdev *)helper; |
| int new_fb = 0; |
| int ret; |
| |
| if (!helper->fb) { |
| ret = intelfb_create(ifbdev, sizes); |
| if (ret) |
| return ret; |
| new_fb = 1; |
| } |
| return new_fb; |
| } |
| |
| static struct drm_fb_helper_funcs intel_fb_helper_funcs = { |
| .gamma_set = intel_crtc_fb_gamma_set, |
| .gamma_get = intel_crtc_fb_gamma_get, |
| .fb_probe = intel_fb_find_or_create_single, |
| }; |
| |
| static void intel_fbdev_destroy(struct drm_device *dev, |
| struct intel_fbdev *ifbdev) |
| { |
| struct fb_info *info; |
| struct intel_framebuffer *ifb = &ifbdev->ifb; |
| |
| if (ifbdev->helper.fbdev) { |
| info = ifbdev->helper.fbdev; |
| unregister_framebuffer(info); |
| iounmap(info->screen_base); |
| if (info->cmap.len) |
| fb_dealloc_cmap(&info->cmap); |
| framebuffer_release(info); |
| } |
| |
| drm_fb_helper_fini(&ifbdev->helper); |
| |
| drm_framebuffer_cleanup(&ifb->base); |
| if (ifb->obj) |
| drm_gem_object_unreference_unlocked(ifb->obj); |
| } |
| |
| int intel_fbdev_init(struct drm_device *dev) |
| { |
| struct intel_fbdev *ifbdev; |
| drm_i915_private_t *dev_priv = dev->dev_private; |
| int ret; |
| |
| ifbdev = kzalloc(sizeof(struct intel_fbdev), GFP_KERNEL); |
| if (!ifbdev) |
| return -ENOMEM; |
| |
| dev_priv->fbdev = ifbdev; |
| ifbdev->helper.funcs = &intel_fb_helper_funcs; |
| |
| ret = drm_fb_helper_init(dev, &ifbdev->helper, |
| dev_priv->num_pipe, |
| INTELFB_CONN_LIMIT); |
| if (ret) { |
| kfree(ifbdev); |
| return ret; |
| } |
| |
| drm_fb_helper_single_add_all_connectors(&ifbdev->helper); |
| drm_fb_helper_initial_config(&ifbdev->helper, 32); |
| return 0; |
| } |
| |
| void intel_fbdev_fini(struct drm_device *dev) |
| { |
| drm_i915_private_t *dev_priv = dev->dev_private; |
| if (!dev_priv->fbdev) |
| return; |
| |
| intel_fbdev_destroy(dev, dev_priv->fbdev); |
| kfree(dev_priv->fbdev); |
| dev_priv->fbdev = NULL; |
| } |
| MODULE_LICENSE("GPL and additional rights"); |
| |
| void intel_fb_output_poll_changed(struct drm_device *dev) |
| { |
| drm_i915_private_t *dev_priv = dev->dev_private; |
| drm_fb_helper_hotplug_event(&dev_priv->fbdev->helper); |
| } |