Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 1 | /* exynos_drm_fbdev.c |
| 2 | * |
| 3 | * Copyright (c) 2011 Samsung Electronics Co., Ltd. |
| 4 | * Authors: |
| 5 | * Inki Dae <inki.dae@samsung.com> |
| 6 | * Joonyoung Shim <jy0922.shim@samsung.com> |
| 7 | * Seung-Woo Kim <sw0312.kim@samsung.com> |
| 8 | * |
Inki Dae | d81aecb | 2012-12-18 02:30:17 +0900 | [diff] [blame] | 9 | * This program is free software; you can redistribute it and/or modify it |
| 10 | * under the terms of the GNU General Public License as published by the |
| 11 | * Free Software Foundation; either version 2 of the License, or (at your |
| 12 | * option) any later version. |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 13 | */ |
| 14 | |
David Howells | 760285e | 2012-10-02 18:01:07 +0100 | [diff] [blame] | 15 | #include <drm/drmP.h> |
| 16 | #include <drm/drm_crtc.h> |
| 17 | #include <drm/drm_fb_helper.h> |
| 18 | #include <drm/drm_crtc_helper.h> |
Vikas Sajjan | a1bfacf | 2013-08-06 17:22:04 +0530 | [diff] [blame] | 19 | #include <drm/exynos_drm.h> |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 20 | |
| 21 | #include "exynos_drm_drv.h" |
| 22 | #include "exynos_drm_fb.h" |
Mark Brown | e30655d | 2013-08-13 00:46:40 +0100 | [diff] [blame] | 23 | #include "exynos_drm_fbdev.h" |
Inki Dae | 2c87112 | 2011-11-12 15:23:32 +0900 | [diff] [blame] | 24 | #include "exynos_drm_gem.h" |
Inki Dae | c704f1b | 2012-12-21 17:59:20 +0900 | [diff] [blame] | 25 | #include "exynos_drm_iommu.h" |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 26 | |
| 27 | #define MAX_CONNECTOR 4 |
| 28 | #define PREFERRED_BPP 32 |
| 29 | |
| 30 | #define to_exynos_fbdev(x) container_of(x, struct exynos_drm_fbdev,\ |
| 31 | drm_fb_helper) |
| 32 | |
| 33 | struct exynos_drm_fbdev { |
Joonyoung Shim | e1533c0 | 2011-12-13 14:46:57 +0900 | [diff] [blame] | 34 | struct drm_fb_helper drm_fb_helper; |
| 35 | struct exynos_drm_gem_obj *exynos_gem_obj; |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 36 | }; |
| 37 | |
Prathyush K | dd26585 | 2012-11-19 13:55:28 +0530 | [diff] [blame] | 38 | static int exynos_drm_fb_mmap(struct fb_info *info, |
| 39 | struct vm_area_struct *vma) |
| 40 | { |
| 41 | struct drm_fb_helper *helper = info->par; |
| 42 | struct exynos_drm_fbdev *exynos_fbd = to_exynos_fbdev(helper); |
| 43 | struct exynos_drm_gem_obj *exynos_gem_obj = exynos_fbd->exynos_gem_obj; |
| 44 | struct exynos_drm_gem_buf *buffer = exynos_gem_obj->buffer; |
| 45 | unsigned long vm_size; |
| 46 | int ret; |
| 47 | |
Prathyush K | dd26585 | 2012-11-19 13:55:28 +0530 | [diff] [blame] | 48 | vma->vm_flags |= VM_IO | VM_DONTEXPAND | VM_DONTDUMP; |
| 49 | |
| 50 | vm_size = vma->vm_end - vma->vm_start; |
| 51 | |
| 52 | if (vm_size > buffer->size) |
| 53 | return -EINVAL; |
| 54 | |
Inki Dae | 4744ad2 | 2012-12-07 17:51:27 +0900 | [diff] [blame] | 55 | ret = dma_mmap_attrs(helper->dev->dev, vma, buffer->pages, |
Prathyush K | dd26585 | 2012-11-19 13:55:28 +0530 | [diff] [blame] | 56 | buffer->dma_addr, buffer->size, &buffer->dma_attrs); |
| 57 | if (ret < 0) { |
| 58 | DRM_ERROR("failed to mmap.\n"); |
| 59 | return ret; |
| 60 | } |
| 61 | |
| 62 | return 0; |
| 63 | } |
| 64 | |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 65 | static struct fb_ops exynos_drm_fb_ops = { |
| 66 | .owner = THIS_MODULE, |
Prathyush K | dd26585 | 2012-11-19 13:55:28 +0530 | [diff] [blame] | 67 | .fb_mmap = exynos_drm_fb_mmap, |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 68 | .fb_fillrect = cfb_fillrect, |
| 69 | .fb_copyarea = cfb_copyarea, |
| 70 | .fb_imageblit = cfb_imageblit, |
| 71 | .fb_check_var = drm_fb_helper_check_var, |
Sascha Hauer | 83b316f | 2012-02-01 11:38:37 +0100 | [diff] [blame] | 72 | .fb_set_par = drm_fb_helper_set_par, |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 73 | .fb_blank = drm_fb_helper_blank, |
| 74 | .fb_pan_display = drm_fb_helper_pan_display, |
| 75 | .fb_setcmap = drm_fb_helper_setcmap, |
| 76 | }; |
| 77 | |
Inki Dae | 19c8b83 | 2011-10-14 13:29:46 +0900 | [diff] [blame] | 78 | static int exynos_drm_fbdev_update(struct drm_fb_helper *helper, |
Seung-Woo Kim | aa6b2b6 | 2011-11-04 13:44:38 +0900 | [diff] [blame] | 79 | struct drm_framebuffer *fb) |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 80 | { |
| 81 | struct fb_info *fbi = helper->fbdev; |
| 82 | struct drm_device *dev = helper->dev; |
Inki Dae | 2c87112 | 2011-11-12 15:23:32 +0900 | [diff] [blame] | 83 | struct exynos_drm_gem_buf *buffer; |
Seung-Woo Kim | aa6b2b6 | 2011-11-04 13:44:38 +0900 | [diff] [blame] | 84 | unsigned int size = fb->width * fb->height * (fb->bits_per_pixel >> 3); |
Inki Dae | 19c8b83 | 2011-10-14 13:29:46 +0900 | [diff] [blame] | 85 | unsigned long offset; |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 86 | |
Ville Syrjälä | 01f2c77 | 2011-12-20 00:06:49 +0200 | [diff] [blame] | 87 | drm_fb_helper_fill_fix(fbi, fb->pitches[0], fb->depth); |
Seung-Woo Kim | aa6b2b6 | 2011-11-04 13:44:38 +0900 | [diff] [blame] | 88 | drm_fb_helper_fill_var(fbi, helper, fb->width, fb->height); |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 89 | |
Seung-Woo Kim | 229d353 | 2011-12-15 14:36:22 +0900 | [diff] [blame] | 90 | /* RGB formats use only one buffer */ |
| 91 | buffer = exynos_drm_fb_buffer(fb, 0); |
Inki Dae | 2c87112 | 2011-11-12 15:23:32 +0900 | [diff] [blame] | 92 | if (!buffer) { |
Lespiau, Damien | 133dcde | 2014-03-24 15:53:10 +0000 | [diff] [blame] | 93 | DRM_DEBUG_KMS("buffer is null.\n"); |
Inki Dae | 19c8b83 | 2011-10-14 13:29:46 +0900 | [diff] [blame] | 94 | return -EFAULT; |
| 95 | } |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 96 | |
Inki Dae | 4744ad2 | 2012-12-07 17:51:27 +0900 | [diff] [blame] | 97 | /* map pages with kernel virtual space. */ |
| 98 | if (!buffer->kvaddr) { |
Inki Dae | c704f1b | 2012-12-21 17:59:20 +0900 | [diff] [blame] | 99 | if (is_drm_iommu_supported(dev)) { |
| 100 | unsigned int nr_pages = buffer->size >> PAGE_SHIFT; |
| 101 | |
Sachin Kamat | fafb383 | 2013-09-05 17:01:36 +0530 | [diff] [blame] | 102 | buffer->kvaddr = (void __iomem *) vmap(buffer->pages, |
| 103 | nr_pages, VM_MAP, |
Inki Dae | 4744ad2 | 2012-12-07 17:51:27 +0900 | [diff] [blame] | 104 | pgprot_writecombine(PAGE_KERNEL)); |
Inki Dae | c704f1b | 2012-12-21 17:59:20 +0900 | [diff] [blame] | 105 | } else { |
| 106 | phys_addr_t dma_addr = buffer->dma_addr; |
| 107 | if (dma_addr) |
Sachin Kamat | fafb383 | 2013-09-05 17:01:36 +0530 | [diff] [blame] | 108 | buffer->kvaddr = (void __iomem *)phys_to_virt(dma_addr); |
Inki Dae | c704f1b | 2012-12-21 17:59:20 +0900 | [diff] [blame] | 109 | else |
| 110 | buffer->kvaddr = (void __iomem *)NULL; |
| 111 | } |
Inki Dae | 4744ad2 | 2012-12-07 17:51:27 +0900 | [diff] [blame] | 112 | if (!buffer->kvaddr) { |
| 113 | DRM_ERROR("failed to map pages to kernel space.\n"); |
| 114 | return -EIO; |
| 115 | } |
| 116 | } |
| 117 | |
Inki Dae | 01ed812 | 2012-08-20 20:05:56 +0900 | [diff] [blame] | 118 | /* buffer count to framebuffer always is 1 at booting time. */ |
| 119 | exynos_drm_fb_set_buf_cnt(fb, 1); |
| 120 | |
Inki Dae | 19c8b83 | 2011-10-14 13:29:46 +0900 | [diff] [blame] | 121 | offset = fbi->var.xoffset * (fb->bits_per_pixel >> 3); |
Ville Syrjälä | 01f2c77 | 2011-12-20 00:06:49 +0200 | [diff] [blame] | 122 | offset += fbi->var.yoffset * fb->pitches[0]; |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 123 | |
Inki Dae | 2c87112 | 2011-11-12 15:23:32 +0900 | [diff] [blame] | 124 | fbi->screen_base = buffer->kvaddr + offset; |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 125 | fbi->screen_size = size; |
Inki Dae | 19c8b83 | 2011-10-14 13:29:46 +0900 | [diff] [blame] | 126 | |
| 127 | return 0; |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 128 | } |
| 129 | |
| 130 | static int exynos_drm_fbdev_create(struct drm_fb_helper *helper, |
| 131 | struct drm_fb_helper_surface_size *sizes) |
| 132 | { |
| 133 | struct exynos_drm_fbdev *exynos_fbdev = to_exynos_fbdev(helper); |
Joonyoung Shim | e1533c0 | 2011-12-13 14:46:57 +0900 | [diff] [blame] | 134 | struct exynos_drm_gem_obj *exynos_gem_obj; |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 135 | struct drm_device *dev = helper->dev; |
| 136 | struct fb_info *fbi; |
Joonyoung Shim | a794d57 | 2011-12-08 15:05:19 +0900 | [diff] [blame] | 137 | struct drm_mode_fb_cmd2 mode_cmd = { 0 }; |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 138 | struct platform_device *pdev = dev->platformdev; |
Joonyoung Shim | e1533c0 | 2011-12-13 14:46:57 +0900 | [diff] [blame] | 139 | unsigned long size; |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 140 | int ret; |
| 141 | |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 142 | DRM_DEBUG_KMS("surface width(%d), height(%d) and bpp(%d\n", |
| 143 | sizes->surface_width, sizes->surface_height, |
| 144 | sizes->surface_bpp); |
| 145 | |
| 146 | mode_cmd.width = sizes->surface_width; |
| 147 | mode_cmd.height = sizes->surface_height; |
Joonyoung Shim | a794d57 | 2011-12-08 15:05:19 +0900 | [diff] [blame] | 148 | mode_cmd.pitches[0] = sizes->surface_width * (sizes->surface_bpp >> 3); |
| 149 | mode_cmd.pixel_format = drm_mode_legacy_fb_format(sizes->surface_bpp, |
| 150 | sizes->surface_depth); |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 151 | |
| 152 | mutex_lock(&dev->struct_mutex); |
| 153 | |
| 154 | fbi = framebuffer_alloc(0, &pdev->dev); |
| 155 | if (!fbi) { |
| 156 | DRM_ERROR("failed to allocate fb info.\n"); |
| 157 | ret = -ENOMEM; |
| 158 | goto out; |
| 159 | } |
| 160 | |
Joonyoung Shim | e1533c0 | 2011-12-13 14:46:57 +0900 | [diff] [blame] | 161 | size = mode_cmd.pitches[0] * mode_cmd.height; |
Inki Dae | 2b35892 | 2012-03-16 18:47:05 +0900 | [diff] [blame] | 162 | |
Vikas Sajjan | a1bfacf | 2013-08-06 17:22:04 +0530 | [diff] [blame] | 163 | exynos_gem_obj = exynos_drm_gem_create(dev, EXYNOS_BO_CONTIG, size); |
| 164 | /* |
| 165 | * If physically contiguous memory allocation fails and if IOMMU is |
| 166 | * supported then try to get buffer from non physically contiguous |
| 167 | * memory area. |
| 168 | */ |
| 169 | if (IS_ERR(exynos_gem_obj) && is_drm_iommu_supported(dev)) { |
| 170 | dev_warn(&pdev->dev, "contiguous FB allocation failed, falling back to non-contiguous\n"); |
| 171 | exynos_gem_obj = exynos_drm_gem_create(dev, EXYNOS_BO_NONCONTIG, |
| 172 | size); |
| 173 | } |
| 174 | |
Joonyoung Shim | e1533c0 | 2011-12-13 14:46:57 +0900 | [diff] [blame] | 175 | if (IS_ERR(exynos_gem_obj)) { |
| 176 | ret = PTR_ERR(exynos_gem_obj); |
Inki Dae | 662aa6d | 2012-12-07 18:06:43 +0900 | [diff] [blame] | 177 | goto err_release_framebuffer; |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 178 | } |
| 179 | |
Joonyoung Shim | e1533c0 | 2011-12-13 14:46:57 +0900 | [diff] [blame] | 180 | exynos_fbdev->exynos_gem_obj = exynos_gem_obj; |
| 181 | |
| 182 | helper->fb = exynos_drm_framebuffer_init(dev, &mode_cmd, |
| 183 | &exynos_gem_obj->base); |
Sachin Kamat | 41eab40 | 2013-04-29 12:27:05 +0530 | [diff] [blame] | 184 | if (IS_ERR(helper->fb)) { |
Joonyoung Shim | e1533c0 | 2011-12-13 14:46:57 +0900 | [diff] [blame] | 185 | DRM_ERROR("failed to create drm framebuffer.\n"); |
| 186 | ret = PTR_ERR(helper->fb); |
Inki Dae | 662aa6d | 2012-12-07 18:06:43 +0900 | [diff] [blame] | 187 | goto err_destroy_gem; |
Joonyoung Shim | e1533c0 | 2011-12-13 14:46:57 +0900 | [diff] [blame] | 188 | } |
| 189 | |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 190 | helper->fbdev = fbi; |
| 191 | |
| 192 | fbi->par = helper; |
| 193 | fbi->flags = FBINFO_FLAG_DEFAULT; |
| 194 | fbi->fbops = &exynos_drm_fb_ops; |
| 195 | |
| 196 | ret = fb_alloc_cmap(&fbi->cmap, 256, 0); |
| 197 | if (ret) { |
| 198 | DRM_ERROR("failed to allocate cmap.\n"); |
Inki Dae | 662aa6d | 2012-12-07 18:06:43 +0900 | [diff] [blame] | 199 | goto err_destroy_framebuffer; |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 200 | } |
| 201 | |
Seung-Woo Kim | aa6b2b6 | 2011-11-04 13:44:38 +0900 | [diff] [blame] | 202 | ret = exynos_drm_fbdev_update(helper, helper->fb); |
Inki Dae | 662aa6d | 2012-12-07 18:06:43 +0900 | [diff] [blame] | 203 | if (ret < 0) |
| 204 | goto err_dealloc_cmap; |
| 205 | |
| 206 | mutex_unlock(&dev->struct_mutex); |
| 207 | return ret; |
| 208 | |
| 209 | err_dealloc_cmap: |
| 210 | fb_dealloc_cmap(&fbi->cmap); |
| 211 | err_destroy_framebuffer: |
| 212 | drm_framebuffer_cleanup(helper->fb); |
| 213 | err_destroy_gem: |
| 214 | exynos_drm_gem_destroy(exynos_gem_obj); |
| 215 | err_release_framebuffer: |
| 216 | framebuffer_release(fbi); |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 217 | |
| 218 | /* |
| 219 | * if failed, all resources allocated above would be released by |
| 220 | * drm_mode_config_cleanup() when drm_load() had been called prior |
| 221 | * to any specific driver such as fimd or hdmi driver. |
| 222 | */ |
| 223 | out: |
| 224 | mutex_unlock(&dev->struct_mutex); |
| 225 | return ret; |
| 226 | } |
| 227 | |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 228 | static struct drm_fb_helper_funcs exynos_drm_fb_helper_funcs = { |
Daniel Vetter | cd5428a | 2013-01-21 23:42:49 +0100 | [diff] [blame] | 229 | .fb_probe = exynos_drm_fbdev_create, |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 230 | }; |
| 231 | |
Jingoo Han | 9230ffc | 2014-04-17 19:07:22 +0900 | [diff] [blame] | 232 | static bool exynos_drm_fbdev_is_anything_connected(struct drm_device *dev) |
Andrzej Hajda | 3eb578e | 2014-03-28 12:52:38 +0100 | [diff] [blame] | 233 | { |
| 234 | struct drm_connector *connector; |
| 235 | bool ret = false; |
| 236 | |
| 237 | mutex_lock(&dev->mode_config.mutex); |
| 238 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { |
| 239 | if (connector->status != connector_status_connected) |
| 240 | continue; |
| 241 | |
| 242 | ret = true; |
| 243 | break; |
| 244 | } |
| 245 | mutex_unlock(&dev->mode_config.mutex); |
| 246 | |
| 247 | return ret; |
| 248 | } |
| 249 | |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 250 | int exynos_drm_fbdev_init(struct drm_device *dev) |
| 251 | { |
| 252 | struct exynos_drm_fbdev *fbdev; |
| 253 | struct exynos_drm_private *private = dev->dev_private; |
| 254 | struct drm_fb_helper *helper; |
| 255 | unsigned int num_crtc; |
| 256 | int ret; |
| 257 | |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 258 | if (!dev->mode_config.num_crtc || !dev->mode_config.num_connector) |
| 259 | return 0; |
| 260 | |
Andrzej Hajda | 3eb578e | 2014-03-28 12:52:38 +0100 | [diff] [blame] | 261 | if (!exynos_drm_fbdev_is_anything_connected(dev)) |
| 262 | return 0; |
| 263 | |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 264 | fbdev = kzalloc(sizeof(*fbdev), GFP_KERNEL); |
Sachin Kamat | 38bb525 | 2013-08-19 19:04:55 +0900 | [diff] [blame] | 265 | if (!fbdev) |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 266 | return -ENOMEM; |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 267 | |
| 268 | private->fb_helper = helper = &fbdev->drm_fb_helper; |
| 269 | helper->funcs = &exynos_drm_fb_helper_funcs; |
| 270 | |
| 271 | num_crtc = dev->mode_config.num_crtc; |
| 272 | |
| 273 | ret = drm_fb_helper_init(dev, helper, num_crtc, MAX_CONNECTOR); |
| 274 | if (ret < 0) { |
| 275 | DRM_ERROR("failed to initialize drm fb helper.\n"); |
| 276 | goto err_init; |
| 277 | } |
| 278 | |
| 279 | ret = drm_fb_helper_single_add_all_connectors(helper); |
| 280 | if (ret < 0) { |
| 281 | DRM_ERROR("failed to register drm_fb_helper_connector.\n"); |
| 282 | goto err_setup; |
| 283 | |
| 284 | } |
| 285 | |
Daniel Vetter | 76a39db | 2013-01-20 23:12:54 +0100 | [diff] [blame] | 286 | /* disable all the possible outputs/crtcs before entering KMS mode */ |
| 287 | drm_helper_disable_unused_functions(dev); |
| 288 | |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 289 | ret = drm_fb_helper_initial_config(helper, PREFERRED_BPP); |
| 290 | if (ret < 0) { |
| 291 | DRM_ERROR("failed to set up hw configuration.\n"); |
| 292 | goto err_setup; |
| 293 | } |
| 294 | |
| 295 | return 0; |
| 296 | |
| 297 | err_setup: |
| 298 | drm_fb_helper_fini(helper); |
| 299 | |
| 300 | err_init: |
| 301 | private->fb_helper = NULL; |
| 302 | kfree(fbdev); |
| 303 | |
| 304 | return ret; |
| 305 | } |
| 306 | |
| 307 | static void exynos_drm_fbdev_destroy(struct drm_device *dev, |
| 308 | struct drm_fb_helper *fb_helper) |
| 309 | { |
Inki Dae | 4744ad2 | 2012-12-07 17:51:27 +0900 | [diff] [blame] | 310 | struct exynos_drm_fbdev *exynos_fbd = to_exynos_fbdev(fb_helper); |
| 311 | struct exynos_drm_gem_obj *exynos_gem_obj = exynos_fbd->exynos_gem_obj; |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 312 | struct drm_framebuffer *fb; |
| 313 | |
Inki Dae | c704f1b | 2012-12-21 17:59:20 +0900 | [diff] [blame] | 314 | if (is_drm_iommu_supported(dev) && exynos_gem_obj->buffer->kvaddr) |
Inki Dae | 4744ad2 | 2012-12-07 17:51:27 +0900 | [diff] [blame] | 315 | vunmap(exynos_gem_obj->buffer->kvaddr); |
| 316 | |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 317 | /* release drm framebuffer and real buffer */ |
| 318 | if (fb_helper->fb && fb_helper->fb->funcs) { |
| 319 | fb = fb_helper->fb; |
Daniel Vetter | 3620636 | 2012-12-10 20:42:17 +0100 | [diff] [blame] | 320 | if (fb) { |
| 321 | drm_framebuffer_unregister_private(fb); |
Rob Clark | f7eff60 | 2012-09-05 21:48:38 +0000 | [diff] [blame] | 322 | drm_framebuffer_remove(fb); |
Daniel Vetter | 3620636 | 2012-12-10 20:42:17 +0100 | [diff] [blame] | 323 | } |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 324 | } |
| 325 | |
| 326 | /* release linux framebuffer */ |
| 327 | if (fb_helper->fbdev) { |
| 328 | struct fb_info *info; |
| 329 | int ret; |
| 330 | |
| 331 | info = fb_helper->fbdev; |
| 332 | ret = unregister_framebuffer(info); |
| 333 | if (ret < 0) |
| 334 | DRM_DEBUG_KMS("failed unregister_framebuffer()\n"); |
| 335 | |
| 336 | if (info->cmap.len) |
| 337 | fb_dealloc_cmap(&info->cmap); |
| 338 | |
| 339 | framebuffer_release(info); |
| 340 | } |
| 341 | |
| 342 | drm_fb_helper_fini(fb_helper); |
| 343 | } |
| 344 | |
| 345 | void exynos_drm_fbdev_fini(struct drm_device *dev) |
| 346 | { |
| 347 | struct exynos_drm_private *private = dev->dev_private; |
| 348 | struct exynos_drm_fbdev *fbdev; |
| 349 | |
| 350 | if (!private || !private->fb_helper) |
| 351 | return; |
| 352 | |
| 353 | fbdev = to_exynos_fbdev(private->fb_helper); |
| 354 | |
Joonyoung Shim | e1533c0 | 2011-12-13 14:46:57 +0900 | [diff] [blame] | 355 | if (fbdev->exynos_gem_obj) |
| 356 | exynos_drm_gem_destroy(fbdev->exynos_gem_obj); |
| 357 | |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 358 | exynos_drm_fbdev_destroy(dev, private->fb_helper); |
| 359 | kfree(fbdev); |
| 360 | private->fb_helper = NULL; |
| 361 | } |
| 362 | |
| 363 | void exynos_drm_fbdev_restore_mode(struct drm_device *dev) |
| 364 | { |
| 365 | struct exynos_drm_private *private = dev->dev_private; |
| 366 | |
| 367 | if (!private || !private->fb_helper) |
| 368 | return; |
| 369 | |
Rob Clark | 5ea1f75 | 2014-05-30 12:29:48 -0400 | [diff] [blame^] | 370 | drm_fb_helper_restore_fbdev_mode_unlocked(private->fb_helper); |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 371 | } |