diff options
Diffstat (limited to 'drivers/gpu/drm/drm_fb_helper.c')
| -rw-r--r-- | drivers/gpu/drm/drm_fb_helper.c | 130 |
1 files changed, 56 insertions, 74 deletions
diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c index 29c53f9f449c..937c3939e502 100644 --- a/drivers/gpu/drm/drm_fb_helper.c +++ b/drivers/gpu/drm/drm_fb_helper.c @@ -245,6 +245,9 @@ __drm_fb_helper_restore_fbdev_mode_unlocked(struct drm_fb_helper *fb_helper, if (do_delayed) drm_fb_helper_hotplug_event(fb_helper); + if (fb_helper->funcs->fb_restore) + fb_helper->funcs->fb_restore(fb_helper); + return ret; } @@ -492,8 +495,8 @@ EXPORT_SYMBOL(drm_fb_helper_init); * @fb_helper: driver-allocated fbdev helper * * A helper to alloc fb_info and the member cmap. Called by the driver - * within the fb_probe fb_helper callback function. Drivers do not - * need to release the allocated fb_info structure themselves, this is + * within the struct &drm_driver.fbdev_probe callback function. Drivers do + * not need to release the allocated fb_info structure themselves, this is * automatically done when calling drm_fb_helper_fini(). * * RETURNS: @@ -554,7 +557,7 @@ EXPORT_SYMBOL(drm_fb_helper_release_info); /** * drm_fb_helper_unregister_info - unregister fb_info framebuffer device - * @fb_helper: driver-allocated fbdev helper, can be NULL + * @fb_helper: driver-allocated fbdev helper, must not be NULL * * A wrapper around unregister_framebuffer, to release the fb_info * framebuffer device. This must be called before releasing all resources for @@ -562,8 +565,12 @@ EXPORT_SYMBOL(drm_fb_helper_release_info); */ void drm_fb_helper_unregister_info(struct drm_fb_helper *fb_helper) { - if (fb_helper && fb_helper->info) - unregister_framebuffer(fb_helper->info); + struct fb_info *info = fb_helper->info; + struct device *dev = info->device; + + if (dev_is_pci(dev)) + vga_switcheroo_client_fb_set(to_pci_dev(dev), NULL); + unregister_framebuffer(fb_helper->info); } EXPORT_SYMBOL(drm_fb_helper_unregister_info); @@ -693,6 +700,7 @@ void drm_fb_helper_damage_area(struct fb_info *info, u32 x, u32 y, u32 width, u3 } EXPORT_SYMBOL(drm_fb_helper_damage_area); +#ifdef CONFIG_FB_DEFERRED_IO /** * drm_fb_helper_deferred_io() - fbdev deferred_io callback function * @info: fb_info struct pointer @@ -736,6 +744,7 @@ void drm_fb_helper_deferred_io(struct fb_info *info, struct list_head *pagerefli } } EXPORT_SYMBOL(drm_fb_helper_deferred_io); +#endif /** * drm_fb_helper_set_suspend - wrapper around fb_set_suspend @@ -748,7 +757,12 @@ EXPORT_SYMBOL(drm_fb_helper_deferred_io); */ void drm_fb_helper_set_suspend(struct drm_fb_helper *fb_helper, bool suspend) { - if (fb_helper && fb_helper->info) + if (!fb_helper || !fb_helper->info) + return; + + if (fb_helper->funcs->fb_set_suspend) + fb_helper->funcs->fb_set_suspend(fb_helper, suspend); + else fb_set_suspend(fb_helper->info, suspend); } EXPORT_SYMBOL(drm_fb_helper_set_suspend); @@ -794,7 +808,7 @@ void drm_fb_helper_set_suspend_unlocked(struct drm_fb_helper *fb_helper, } } - fb_set_suspend(fb_helper->info, suspend); + drm_fb_helper_set_suspend(fb_helper, suspend); console_unlock(); } EXPORT_SYMBOL(drm_fb_helper_set_suspend_unlocked); @@ -1348,14 +1362,14 @@ int drm_fb_helper_set_par(struct fb_info *info) } EXPORT_SYMBOL(drm_fb_helper_set_par); -static void pan_set(struct drm_fb_helper *fb_helper, int x, int y) +static void pan_set(struct drm_fb_helper *fb_helper, int dx, int dy) { struct drm_mode_set *mode_set; mutex_lock(&fb_helper->client.modeset_mutex); drm_client_for_each_modeset(mode_set, &fb_helper->client) { - mode_set->x = x; - mode_set->y = y; + mode_set->x += dx; + mode_set->y += dy; } mutex_unlock(&fb_helper->client.modeset_mutex); } @@ -1364,16 +1378,18 @@ static int pan_display_atomic(struct fb_var_screeninfo *var, struct fb_info *info) { struct drm_fb_helper *fb_helper = info->par; - int ret; + int ret, dx, dy; - pan_set(fb_helper, var->xoffset, var->yoffset); + dx = var->xoffset - info->var.xoffset; + dy = var->yoffset - info->var.yoffset; + pan_set(fb_helper, dx, dy); ret = drm_client_modeset_commit_locked(&fb_helper->client); if (!ret) { info->var.xoffset = var->xoffset; info->var.yoffset = var->yoffset; } else - pan_set(fb_helper, info->var.xoffset, info->var.yoffset); + pan_set(fb_helper, -dx, -dy); return ret; } @@ -1441,67 +1457,27 @@ unlock: EXPORT_SYMBOL(drm_fb_helper_pan_display); static uint32_t drm_fb_helper_find_format(struct drm_fb_helper *fb_helper, const uint32_t *formats, - size_t format_count, uint32_t bpp, uint32_t depth) + size_t format_count, unsigned int color_mode) { struct drm_device *dev = fb_helper->dev; uint32_t format; size_t i; - /* - * Do not consider YUV or other complicated formats - * for framebuffers. This means only legacy formats - * are supported (fmt->depth is a legacy field), but - * the framebuffer emulation can only deal with such - * formats, specifically RGB/BGA formats. - */ - format = drm_mode_legacy_fb_format(bpp, depth); - if (!format) - goto err; + format = drm_driver_color_mode_format(dev, color_mode); + if (!format) { + drm_info(dev, "unsupported color mode of %d\n", color_mode); + return DRM_FORMAT_INVALID; + } for (i = 0; i < format_count; ++i) { if (formats[i] == format) return format; } - -err: - /* We found nothing. */ - drm_warn(dev, "bpp/depth value of %u/%u not supported\n", bpp, depth); + drm_warn(dev, "format %p4cc not supported\n", &format); return DRM_FORMAT_INVALID; } -static uint32_t drm_fb_helper_find_color_mode_format(struct drm_fb_helper *fb_helper, - const uint32_t *formats, size_t format_count, - unsigned int color_mode) -{ - struct drm_device *dev = fb_helper->dev; - uint32_t bpp, depth; - - switch (color_mode) { - case 1: - case 2: - case 4: - case 8: - case 16: - case 24: - bpp = depth = color_mode; - break; - case 15: - bpp = 16; - depth = 15; - break; - case 32: - bpp = 32; - depth = 24; - break; - default: - drm_info(dev, "unsupported color mode of %d\n", color_mode); - return DRM_FORMAT_INVALID; - } - - return drm_fb_helper_find_format(fb_helper, formats, format_count, bpp, depth); -} - static int __drm_fb_helper_find_sizes(struct drm_fb_helper *fb_helper, struct drm_fb_helper_surface_size *sizes) { @@ -1531,10 +1507,10 @@ static int __drm_fb_helper_find_sizes(struct drm_fb_helper *fb_helper, if (!cmdline_mode->bpp_specified) continue; - surface_format = drm_fb_helper_find_color_mode_format(fb_helper, - plane->format_types, - plane->format_count, - cmdline_mode->bpp); + surface_format = drm_fb_helper_find_format(fb_helper, + plane->format_types, + plane->format_count, + cmdline_mode->bpp); if (surface_format != DRM_FORMAT_INVALID) break; /* found supported format */ } @@ -1544,10 +1520,10 @@ static int __drm_fb_helper_find_sizes(struct drm_fb_helper *fb_helper, break; /* found supported format */ /* try preferred color mode */ - surface_format = drm_fb_helper_find_color_mode_format(fb_helper, - plane->format_types, - plane->format_count, - fb_helper->preferred_bpp); + surface_format = drm_fb_helper_find_format(fb_helper, + plane->format_types, + plane->format_count, + fb_helper->preferred_bpp); if (surface_format != DRM_FORMAT_INVALID) break; /* found supported format */ } @@ -1648,15 +1624,19 @@ static int drm_fb_helper_find_sizes(struct drm_fb_helper *fb_helper, /* * Allocates the backing storage and sets up the fbdev info structure through - * the ->fb_probe callback. + * the ->fbdev_probe callback. */ static int drm_fb_helper_single_fb_probe(struct drm_fb_helper *fb_helper) { struct drm_client_dev *client = &fb_helper->client; struct drm_device *dev = fb_helper->dev; struct drm_fb_helper_surface_size sizes; + struct fb_info *info; int ret; + if (drm_WARN_ON(dev, !dev->driver->fbdev_probe)) + return -EINVAL; + ret = drm_fb_helper_find_sizes(fb_helper, &sizes); if (ret) { /* First time: disable all crtc's.. */ @@ -1666,15 +1646,17 @@ static int drm_fb_helper_single_fb_probe(struct drm_fb_helper *fb_helper) } /* push down into drivers */ - ret = (*fb_helper->funcs->fb_probe)(fb_helper, &sizes); + ret = dev->driver->fbdev_probe(fb_helper, &sizes); if (ret < 0) return ret; strcpy(fb_helper->fb->comm, "[fbcon]"); + info = fb_helper->info; + /* Set the fb info for vgaswitcheroo clients. Does nothing otherwise. */ - if (dev_is_pci(dev->dev)) - vga_switcheroo_client_fb_set(to_pci_dev(dev->dev), fb_helper->info); + if (dev_is_pci(info->device)) + vga_switcheroo_client_fb_set(to_pci_dev(info->device), info); return 0; } @@ -1738,7 +1720,7 @@ static void drm_fb_helper_fill_var(struct fb_info *info, * instance and the drm framebuffer allocated in &drm_fb_helper.fb. * * Drivers should call this (or their equivalent setup code) from their - * &drm_fb_helper_funcs.fb_probe callback after having allocated the fbdev + * &drm_driver.fbdev_probe callback after having allocated the fbdev * backing storage framebuffer. */ void drm_fb_helper_fill_info(struct fb_info *info, @@ -1894,7 +1876,7 @@ __drm_fb_helper_initial_config_and_unlock(struct drm_fb_helper *fb_helper) * Note that this also registers the fbdev and so allows userspace to call into * the driver through the fbdev interfaces. * - * This function will call down into the &drm_fb_helper_funcs.fb_probe callback + * This function will call down into the &drm_driver.fbdev_probe callback * to let the driver allocate and initialize the fbdev info structure and the * drm framebuffer used to back the fbdev. drm_fb_helper_fill_info() is provided * as a helper to setup simple default values for the fbdev info structure. |