drivers/gpu/drm/radeon/radeon_kms.c

   1 /*
   2  * Copyright 2008 Advanced Micro Devices, Inc.
   3  * Copyright 2008 Red Hat Inc.
   4  * Copyright 2009 Jerome Glisse.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the "Software"),
   8  * to deal in the Software without restriction, including without limitation
   9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  10  * and/or sell copies of the Software, and to permit persons to whom the
  11  * Software is furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice shall be included in
  14  * all copies or substantial portions of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  19  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
  20  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  21  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  22  * OTHER DEALINGS IN THE SOFTWARE.
  23  *
  24  * Authors: Dave Airlie
  25  *          Alex Deucher
  26  *          Jerome Glisse
  27  */
  28 #include "drmP.h"
  29 #include "drm_sarea.h"
  30 #include "radeon.h"
  31 #include "radeon_drm.h"
  32
  33 int radeon_driver_unload_kms(struct drm_device *dev)
  34 {
  35         struct radeon_device *rdev = dev->dev_private;
  36
  37         if (rdev == NULL)
  38                 return 0;
  39         radeon_modeset_fini(rdev);
  40         radeon_device_fini(rdev);
  41         kfree(rdev);
  42         dev->dev_private = NULL;
  43         return 0;
  44 }
  45
  46 int radeon_driver_load_kms(struct drm_device *dev, unsigned long flags)
  47 {
  48         struct radeon_device *rdev;
  49         int r;
  50
  51         rdev = kzalloc(sizeof(struct radeon_device), GFP_KERNEL);
  52         if (rdev == NULL) {
  53                 return -ENOMEM;
  54         }
  55         dev->dev_private = (void *)rdev;
  56
  57         /* update BUS flag */
  58         if (drm_device_is_agp(dev)) {
  59                 flags |= RADEON_IS_AGP;
  60         } else if (drm_device_is_pcie(dev)) {
  61                 flags |= RADEON_IS_PCIE;
  62         } else {
  63                 flags |= RADEON_IS_PCI;
  64         }
  65
  66         /* radeon_device_init should report only fatal error
  67          * like memory allocation failure or iomapping failure,
  68          * or memory manager initialization failure, it must
  69          * properly initialize the GPU MC controller and permit
  70          * VRAM allocation
  71          */
  72         r = radeon_device_init(rdev, dev, dev->pdev, flags);
  73         if (r) {
  74                 dev_err(&dev->pdev->dev, "Fatal error during GPU init\n");
  75                 goto out;
  76         }
  77         /* Again modeset_init should fail only on fatal error
  78          * otherwise it should provide enough functionalities
  79          * for shadowfb to run
  80          */
  81         r = radeon_modeset_init(rdev);
  82         if (r)
  83                 dev_err(&dev->pdev->dev, "Fatal error during modeset init\n");
  84 out:
  85         if (r)
  86                 radeon_driver_unload_kms(dev);
  87         return r;
  88 }
  89
  90
  91 /*
  92  * Userspace get informations ioctl
  93  */
  94 int radeon_info_ioctl(struct drm_device *dev, void *data, struct drm_file *filp)
  95 {
  96         struct radeon_device *rdev = dev->dev_private;
  97         struct drm_radeon_info *info;
  98         uint32_t *value_ptr;
  99         uint32_t value;
 100
 101         info = data;
 102         value_ptr = (uint32_t *)((unsigned long)info->value);
 103         switch (info->request) {
 104         case RADEON_INFO_DEVICE_ID:
 105                 value = dev->pci_device;
 106                 break;
 107         case RADEON_INFO_NUM_GB_PIPES:
 108                 value = rdev->num_gb_pipes;
 109                 break;
 110         case RADEON_INFO_NUM_Z_PIPES:
 111                 value = rdev->num_z_pipes;
 112                 break;
 113         case RADEON_INFO_ACCEL_WORKING:
 114                 value = rdev->accel_working;
 115                 break;
 116         default:
 117                 DRM_DEBUG("Invalid request %d\n", info->request);
 118                 return -EINVAL;
 119         }
 120         if (DRM_COPY_TO_USER(value_ptr, &value, sizeof(uint32_t))) {
 121                 DRM_ERROR("copy_to_user\n");
 122                 return -EFAULT;
 123         }
 124         return 0;
 125 }
 126
 127
 128 /*
 129  * Outdated mess for old drm with Xorg being in charge (void function now).
 130  */
 131 int radeon_driver_firstopen_kms(struct drm_device *dev)
 132 {
 133         return 0;
 134 }
 135
 136
 137 void radeon_driver_lastclose_kms(struct drm_device *dev)
 138 {
 139 }
 140
 141 int radeon_driver_open_kms(struct drm_device *dev, struct drm_file *file_priv)
 142 {
 143         return 0;
 144 }
 145
 146 void radeon_driver_postclose_kms(struct drm_device *dev,
 147                                  struct drm_file *file_priv)
 148 {
 149 }
 150
 151 void radeon_driver_preclose_kms(struct drm_device *dev,
 152                                 struct drm_file *file_priv)
 153 {
 154 }
 155
 156
 157 /*
 158  * VBlank related functions.
 159  */
 160 u32 radeon_get_vblank_counter_kms(struct drm_device *dev, int crtc)
 161 {
 162         struct radeon_device *rdev = dev->dev_private;
 163
 164         if (crtc < 0 || crtc > 1) {
 165                 DRM_ERROR("Invalid crtc %d\n", crtc);
 166                 return -EINVAL;
 167         }
 168
 169         return radeon_get_vblank_counter(rdev, crtc);
 170 }
 171
 172 int radeon_enable_vblank_kms(struct drm_device *dev, int crtc)
 173 {
 174         struct radeon_device *rdev = dev->dev_private;
 175
 176         if (crtc < 0 || crtc > 1) {
 177                 DRM_ERROR("Invalid crtc %d\n", crtc);
 178                 return -EINVAL;
 179         }
 180
 181         rdev->irq.crtc_vblank_int[crtc] = true;
 182
 183         return radeon_irq_set(rdev);
 184 }
 185
 186 void radeon_disable_vblank_kms(struct drm_device *dev, int crtc)
 187 {
 188         struct radeon_device *rdev = dev->dev_private;
 189
 190         if (crtc < 0 || crtc > 1) {
 191                 DRM_ERROR("Invalid crtc %d\n", crtc);
 192                 return;
 193         }
 194
 195         rdev->irq.crtc_vblank_int[crtc] = false;
 196
 197         radeon_irq_set(rdev);
 198 }
 199
 200
 201 /*
 202  * IOCTL.
 203  */
 204 int radeon_dma_ioctl_kms(struct drm_device *dev, void *data,
 205                          struct drm_file *file_priv)
 206 {
 207         /* Not valid in KMS. */
 208         return -EINVAL;
 209 }
 210
 211 #define KMS_INVALID_IOCTL(name)                                         \
 212 int name(struct drm_device *dev, void *data, struct drm_file *file_priv)\
 213 {                                                                       \
 214         DRM_ERROR("invalid ioctl with kms %s\n", __func__);             \
 215         return -EINVAL;                                                 \
 216 }
 217
 218 /*
 219  * All these ioctls are invalid in kms world.
 220  */
 221 KMS_INVALID_IOCTL(radeon_cp_init_kms)
 222 KMS_INVALID_IOCTL(radeon_cp_start_kms)
 223 KMS_INVALID_IOCTL(radeon_cp_stop_kms)
 224 KMS_INVALID_IOCTL(radeon_cp_reset_kms)
 225 KMS_INVALID_IOCTL(radeon_cp_idle_kms)
 226 KMS_INVALID_IOCTL(radeon_cp_resume_kms)
 227 KMS_INVALID_IOCTL(radeon_engine_reset_kms)
 228 KMS_INVALID_IOCTL(radeon_fullscreen_kms)
 229 KMS_INVALID_IOCTL(radeon_cp_swap_kms)
 230 KMS_INVALID_IOCTL(radeon_cp_clear_kms)
 231 KMS_INVALID_IOCTL(radeon_cp_vertex_kms)
 232 KMS_INVALID_IOCTL(radeon_cp_indices_kms)
 233 KMS_INVALID_IOCTL(radeon_cp_texture_kms)
 234 KMS_INVALID_IOCTL(radeon_cp_stipple_kms)
 235 KMS_INVALID_IOCTL(radeon_cp_indirect_kms)
 236 KMS_INVALID_IOCTL(radeon_cp_vertex2_kms)
 237 KMS_INVALID_IOCTL(radeon_cp_cmdbuf_kms)
 238 KMS_INVALID_IOCTL(radeon_cp_getparam_kms)
 239 KMS_INVALID_IOCTL(radeon_cp_flip_kms)
 240 KMS_INVALID_IOCTL(radeon_mem_alloc_kms)
 241 KMS_INVALID_IOCTL(radeon_mem_free_kms)
 242 KMS_INVALID_IOCTL(radeon_mem_init_heap_kms)
 243 KMS_INVALID_IOCTL(radeon_irq_emit_kms)
 244 KMS_INVALID_IOCTL(radeon_irq_wait_kms)
 245 KMS_INVALID_IOCTL(radeon_cp_setparam_kms)
 246 KMS_INVALID_IOCTL(radeon_surface_alloc_kms)
 247 KMS_INVALID_IOCTL(radeon_surface_free_kms)
 248
 249
 250 struct drm_ioctl_desc radeon_ioctls_kms[] = {
 251         DRM_IOCTL_DEF(DRM_RADEON_CP_INIT, radeon_cp_init_kms, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
 252         DRM_IOCTL_DEF(DRM_RADEON_CP_START, radeon_cp_start_kms, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
 253         DRM_IOCTL_DEF(DRM_RADEON_CP_STOP, radeon_cp_stop_kms, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
 254         DRM_IOCTL_DEF(DRM_RADEON_CP_RESET, radeon_cp_reset_kms, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
 255         DRM_IOCTL_DEF(DRM_RADEON_CP_IDLE, radeon_cp_idle_kms, DRM_AUTH),
 256         DRM_IOCTL_DEF(DRM_RADEON_CP_RESUME, radeon_cp_resume_kms, DRM_AUTH),
 257         DRM_IOCTL_DEF(DRM_RADEON_RESET, radeon_engine_reset_kms, DRM_AUTH),
 258         DRM_IOCTL_DEF(DRM_RADEON_FULLSCREEN, radeon_fullscreen_kms, DRM_AUTH),
 259         DRM_IOCTL_DEF(DRM_RADEON_SWAP, radeon_cp_swap_kms, DRM_AUTH),
 260         DRM_IOCTL_DEF(DRM_RADEON_CLEAR, radeon_cp_clear_kms, DRM_AUTH),
 261         DRM_IOCTL_DEF(DRM_RADEON_VERTEX, radeon_cp_vertex_kms, DRM_AUTH),
 262         DRM_IOCTL_DEF(DRM_RADEON_INDICES, radeon_cp_indices_kms, DRM_AUTH),
 263         DRM_IOCTL_DEF(DRM_RADEON_TEXTURE, radeon_cp_texture_kms, DRM_AUTH),
 264         DRM_IOCTL_DEF(DRM_RADEON_STIPPLE, radeon_cp_stipple_kms, DRM_AUTH),
 265         DRM_IOCTL_DEF(DRM_RADEON_INDIRECT, radeon_cp_indirect_kms, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
 266         DRM_IOCTL_DEF(DRM_RADEON_VERTEX2, radeon_cp_vertex2_kms, DRM_AUTH),
 267         DRM_IOCTL_DEF(DRM_RADEON_CMDBUF, radeon_cp_cmdbuf_kms, DRM_AUTH),
 268         DRM_IOCTL_DEF(DRM_RADEON_GETPARAM, radeon_cp_getparam_kms, DRM_AUTH),
 269         DRM_IOCTL_DEF(DRM_RADEON_FLIP, radeon_cp_flip_kms, DRM_AUTH),
 270         DRM_IOCTL_DEF(DRM_RADEON_ALLOC, radeon_mem_alloc_kms, DRM_AUTH),
 271         DRM_IOCTL_DEF(DRM_RADEON_FREE, radeon_mem_free_kms, DRM_AUTH),
 272         DRM_IOCTL_DEF(DRM_RADEON_INIT_HEAP, radeon_mem_init_heap_kms, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
 273         DRM_IOCTL_DEF(DRM_RADEON_IRQ_EMIT, radeon_irq_emit_kms, DRM_AUTH),
 274         DRM_IOCTL_DEF(DRM_RADEON_IRQ_WAIT, radeon_irq_wait_kms, DRM_AUTH),
 275         DRM_IOCTL_DEF(DRM_RADEON_SETPARAM, radeon_cp_setparam_kms, DRM_AUTH),
 276         DRM_IOCTL_DEF(DRM_RADEON_SURF_ALLOC, radeon_surface_alloc_kms, DRM_AUTH),
 277         DRM_IOCTL_DEF(DRM_RADEON_SURF_FREE, radeon_surface_free_kms, DRM_AUTH),
 278         /* KMS */
 279         DRM_IOCTL_DEF(DRM_RADEON_GEM_INFO, radeon_gem_info_ioctl, DRM_AUTH|DRM_UNLOCKED),
 280         DRM_IOCTL_DEF(DRM_RADEON_GEM_CREATE, radeon_gem_create_ioctl, DRM_AUTH|DRM_UNLOCKED),
 281         DRM_IOCTL_DEF(DRM_RADEON_GEM_MMAP, radeon_gem_mmap_ioctl, DRM_AUTH|DRM_UNLOCKED),
 282         DRM_IOCTL_DEF(DRM_RADEON_GEM_SET_DOMAIN, radeon_gem_set_domain_ioctl, DRM_AUTH|DRM_UNLOCKED),
 283         DRM_IOCTL_DEF(DRM_RADEON_GEM_PREAD, radeon_gem_pread_ioctl, DRM_AUTH|DRM_UNLOCKED),
 284         DRM_IOCTL_DEF(DRM_RADEON_GEM_PWRITE, radeon_gem_pwrite_ioctl, DRM_AUTH|DRM_UNLOCKED),
 285         DRM_IOCTL_DEF(DRM_RADEON_GEM_WAIT_IDLE, radeon_gem_wait_idle_ioctl, DRM_AUTH|DRM_UNLOCKED),
 286         DRM_IOCTL_DEF(DRM_RADEON_CS, radeon_cs_ioctl, DRM_AUTH|DRM_UNLOCKED),
 287         DRM_IOCTL_DEF(DRM_RADEON_INFO, radeon_info_ioctl, DRM_AUTH|DRM_UNLOCKED),
 288         DRM_IOCTL_DEF(DRM_RADEON_GEM_SET_TILING, radeon_gem_set_tiling_ioctl, DRM_AUTH|DRM_UNLOCKED),
 289         DRM_IOCTL_DEF(DRM_RADEON_GEM_GET_TILING, radeon_gem_get_tiling_ioctl, DRM_AUTH|DRM_UNLOCKED),
 290         DRM_IOCTL_DEF(DRM_RADEON_GEM_BUSY, radeon_gem_busy_ioctl, DRM_AUTH|DRM_UNLOCKED),
 291 };
 292 int radeon_max_kms_ioctl = DRM_ARRAY_SIZE(radeon_ioctls_kms);