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 #include <linux/vga_switcheroo.h>
  34 #include <linux/slab.h>
  35
  36 int radeon_driver_unload_kms(struct drm_device *dev)
  37 {
  38         struct radeon_device *rdev = dev->dev_private;
  39
  40         if (rdev == NULL)
  41                 return 0;
  42         radeon_modeset_fini(rdev);
  43         radeon_device_fini(rdev);
  44         kfree(rdev);
  45         dev->dev_private = NULL;
  46         return 0;
  47 }
  48
  49 int radeon_driver_load_kms(struct drm_device *dev, unsigned long flags)
  50 {
  51         struct radeon_device *rdev;
  52         int r, acpi_status;
  53
  54         rdev = kzalloc(sizeof(struct radeon_device), GFP_KERNEL);
  55         if (rdev == NULL) {
  56                 return -ENOMEM;
  57         }
  58         dev->dev_private = (void *)rdev;
  59
  60         /* update BUS flag */
  61         if (drm_device_is_agp(dev)) {
  62                 flags |= RADEON_IS_AGP;
  63         } else if (drm_device_is_pcie(dev)) {
  64                 flags |= RADEON_IS_PCIE;
  65         } else {
  66                 flags |= RADEON_IS_PCI;
  67         }
  68
  69         /* radeon_device_init should report only fatal error
  70          * like memory allocation failure or iomapping failure,
  71          * or memory manager initialization failure, it must
  72          * properly initialize the GPU MC controller and permit
  73          * VRAM allocation
  74          */
  75         r = radeon_device_init(rdev, dev, dev->pdev, flags);
  76         if (r) {
  77                 dev_err(&dev->pdev->dev, "Fatal error during GPU init\n");
  78                 goto out;
  79         }
  80
  81         /* Call ACPI methods */
  82         acpi_status = radeon_acpi_init(rdev);
  83         if (acpi_status)
  84                 dev_dbg(&dev->pdev->dev, "Error during ACPI methods call\n");
  85
  86         /* Again modeset_init should fail only on fatal error
  87          * otherwise it should provide enough functionalities
  88          * for shadowfb to run
  89          */
  90         r = radeon_modeset_init(rdev);
  91         if (r)
  92                 dev_err(&dev->pdev->dev, "Fatal error during modeset init\n");
  93 out:
  94         if (r)
  95                 radeon_driver_unload_kms(dev);
  96         return r;
  97 }
  98
  99
 100 /*
 101  * Userspace get informations ioctl
 102  */
 103 int radeon_info_ioctl(struct drm_device *dev, void *data, struct drm_file *filp)
 104 {
 105         struct radeon_device *rdev = dev->dev_private;
 106         struct drm_radeon_info *info;
 107         struct radeon_mode_info *minfo = &rdev->mode_info;
 108         uint32_t *value_ptr;
 109         uint32_t value;
 110         struct drm_crtc *crtc;
 111         int i, found;
 112
 113         info = data;
 114         value_ptr = (uint32_t *)((unsigned long)info->value);
 115         if (DRM_COPY_FROM_USER(&value, value_ptr, sizeof(value)))
 116                 return -EFAULT;
 117
 118         switch (info->request) {
 119         case RADEON_INFO_DEVICE_ID:
 120                 value = dev->pci_device;
 121                 break;
 122         case RADEON_INFO_NUM_GB_PIPES:
 123                 value = rdev->num_gb_pipes;
 124                 break;
 125         case RADEON_INFO_NUM_Z_PIPES:
 126                 value = rdev->num_z_pipes;
 127                 break;
 128         case RADEON_INFO_ACCEL_WORKING:
 129                 /* xf86-video-ati 6.13.0 relies on this being false for evergreen */
 130                 if ((rdev->family >= CHIP_CEDAR) && (rdev->family <= CHIP_HEMLOCK))
 131                         value = false;
 132                 else
 133                         value = rdev->accel_working;
 134                 break;
 135         case RADEON_INFO_CRTC_FROM_ID:
 136                 for (i = 0, found = 0; i < rdev->num_crtc; i++) {
 137                         crtc = (struct drm_crtc *)minfo->crtcs[i];
 138                         if (crtc && crtc->base.id == value) {
 139                                 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
 140                                 value = radeon_crtc->crtc_id;
 141                                 found = 1;
 142                                 break;
 143                         }
 144                 }
 145                 if (!found) {
 146                         DRM_DEBUG_KMS("unknown crtc id %d\n", value);
 147                         return -EINVAL;
 148                 }
 149                 break;
 150         case RADEON_INFO_ACCEL_WORKING2:
 151                 value = rdev->accel_working;
 152                 break;
 153         case RADEON_INFO_TILING_CONFIG:
 154                 if (rdev->family >= CHIP_CEDAR)
 155                         value = rdev->config.evergreen.tile_config;
 156                 else if (rdev->family >= CHIP_RV770)
 157                         value = rdev->config.rv770.tile_config;
 158                 else if (rdev->family >= CHIP_R600)
 159                         value = rdev->config.r600.tile_config;
 160                 else {
 161                         DRM_DEBUG_KMS("tiling config is r6xx+ only!\n");
 162                         return -EINVAL;
 163                 }
 164                 break;
 165         case RADEON_INFO_WANT_HYPERZ:
 166                 /* The "value" here is both an input and output parameter.
 167                  * If the input value is 1, filp requests hyper-z access.
 168                  * If the input value is 0, filp revokes its hyper-z access.
 169                  *
 170                  * When returning, the value is 1 if filp owns hyper-z access,
 171                  * 0 otherwise. */
 172                 if (value >= 2) {
 173                         DRM_DEBUG_KMS("WANT_HYPERZ: invalid value %d\n", value);
 174                         return -EINVAL;
 175                 }
 176                 mutex_lock(&dev->struct_mutex);
 177                 if (value == 1) {
 178                         /* wants hyper-z */
 179                         if (!rdev->hyperz_filp)
 180                                 rdev->hyperz_filp = filp;
 181                 } else if (value == 0) {
 182                         /* revokes hyper-z */
 183                         if (rdev->hyperz_filp == filp)
 184                                 rdev->hyperz_filp = NULL;
 185                 }
 186                 value = rdev->hyperz_filp == filp ?  1 : 0;
 187                 mutex_unlock(&dev->struct_mutex);
 188                 break;
 189         default:
 190                 DRM_DEBUG_KMS("Invalid request %d\n", info->request);
 191                 return -EINVAL;
 192         }
 193         if (DRM_COPY_TO_USER(value_ptr, &value, sizeof(uint32_t))) {
 194                 DRM_ERROR("copy_to_user\n");
 195                 return -EFAULT;
 196         }
 197         return 0;
 198 }
 199
 200
 201 /*
 202  * Outdated mess for old drm with Xorg being in charge (void function now).
 203  */
 204 int radeon_driver_firstopen_kms(struct drm_device *dev)
 205 {
 206         struct radeon_device *rdev = dev->dev_private;
 207
 208         if (rdev->powered_down)
 209                 return -EINVAL;
 210         return 0;
 211 }
 212
 213
 214 void radeon_driver_lastclose_kms(struct drm_device *dev)
 215 {
 216         vga_switcheroo_process_delayed_switch();
 217 }
 218
 219 int radeon_driver_open_kms(struct drm_device *dev, struct drm_file *file_priv)
 220 {
 221         return 0;
 222 }
 223
 224 void radeon_driver_postclose_kms(struct drm_device *dev,
 225                                  struct drm_file *file_priv)
 226 {
 227 }
 228
 229 void radeon_driver_preclose_kms(struct drm_device *dev,
 230                                 struct drm_file *file_priv)
 231 {
 232         struct radeon_device *rdev = dev->dev_private;
 233         if (rdev->hyperz_filp == file_priv)
 234                 rdev->hyperz_filp = NULL;
 235 }
 236
 237 /*
 238  * VBlank related functions.
 239  */
 240 u32 radeon_get_vblank_counter_kms(struct drm_device *dev, int crtc)
 241 {
 242         struct radeon_device *rdev = dev->dev_private;
 243
 244         if (crtc < 0 || crtc >= rdev->num_crtc) {
 245                 DRM_ERROR("Invalid crtc %d\n", crtc);
 246                 return -EINVAL;
 247         }
 248
 249         return radeon_get_vblank_counter(rdev, crtc);
 250 }
 251
 252 int radeon_enable_vblank_kms(struct drm_device *dev, int crtc)
 253 {
 254         struct radeon_device *rdev = dev->dev_private;
 255
 256         if (crtc < 0 || crtc >= rdev->num_crtc) {
 257                 DRM_ERROR("Invalid crtc %d\n", crtc);
 258                 return -EINVAL;
 259         }
 260
 261         rdev->irq.crtc_vblank_int[crtc] = true;
 262
 263         return radeon_irq_set(rdev);
 264 }
 265
 266 void radeon_disable_vblank_kms(struct drm_device *dev, int crtc)
 267 {
 268         struct radeon_device *rdev = dev->dev_private;
 269
 270         if (crtc < 0 || crtc >= rdev->num_crtc) {
 271                 DRM_ERROR("Invalid crtc %d\n", crtc);
 272                 return;
 273         }
 274
 275         rdev->irq.crtc_vblank_int[crtc] = false;
 276
 277         radeon_irq_set(rdev);
 278 }
 279
 280
 281 /*
 282  * IOCTL.
 283  */
 284 int radeon_dma_ioctl_kms(struct drm_device *dev, void *data,
 285                          struct drm_file *file_priv)
 286 {
 287         /* Not valid in KMS. */
 288         return -EINVAL;
 289 }
 290
 291 #define KMS_INVALID_IOCTL(name)                                         \
 292 int name(struct drm_device *dev, void *data, struct drm_file *file_priv)\
 293 {                                                                       \
 294         DRM_ERROR("invalid ioctl with kms %s\n", __func__);             \
 295         return -EINVAL;                                                 \
 296 }
 297
 298 /*
 299  * All these ioctls are invalid in kms world.
 300  */
 301 KMS_INVALID_IOCTL(radeon_cp_init_kms)
 302 KMS_INVALID_IOCTL(radeon_cp_start_kms)
 303 KMS_INVALID_IOCTL(radeon_cp_stop_kms)
 304 KMS_INVALID_IOCTL(radeon_cp_reset_kms)
 305 KMS_INVALID_IOCTL(radeon_cp_idle_kms)
 306 KMS_INVALID_IOCTL(radeon_cp_resume_kms)
 307 KMS_INVALID_IOCTL(radeon_engine_reset_kms)
 308 KMS_INVALID_IOCTL(radeon_fullscreen_kms)
 309 KMS_INVALID_IOCTL(radeon_cp_swap_kms)
 310 KMS_INVALID_IOCTL(radeon_cp_clear_kms)
 311 KMS_INVALID_IOCTL(radeon_cp_vertex_kms)
 312 KMS_INVALID_IOCTL(radeon_cp_indices_kms)
 313 KMS_INVALID_IOCTL(radeon_cp_texture_kms)
 314 KMS_INVALID_IOCTL(radeon_cp_stipple_kms)
 315 KMS_INVALID_IOCTL(radeon_cp_indirect_kms)
 316 KMS_INVALID_IOCTL(radeon_cp_vertex2_kms)
 317 KMS_INVALID_IOCTL(radeon_cp_cmdbuf_kms)
 318 KMS_INVALID_IOCTL(radeon_cp_getparam_kms)
 319 KMS_INVALID_IOCTL(radeon_cp_flip_kms)
 320 KMS_INVALID_IOCTL(radeon_mem_alloc_kms)
 321 KMS_INVALID_IOCTL(radeon_mem_free_kms)
 322 KMS_INVALID_IOCTL(radeon_mem_init_heap_kms)
 323 KMS_INVALID_IOCTL(radeon_irq_emit_kms)
 324 KMS_INVALID_IOCTL(radeon_irq_wait_kms)
 325 KMS_INVALID_IOCTL(radeon_cp_setparam_kms)
 326 KMS_INVALID_IOCTL(radeon_surface_alloc_kms)
 327 KMS_INVALID_IOCTL(radeon_surface_free_kms)
 328
 329
 330 struct drm_ioctl_desc radeon_ioctls_kms[] = {
 331         DRM_IOCTL_DEF_DRV(RADEON_CP_INIT, radeon_cp_init_kms, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
 332         DRM_IOCTL_DEF_DRV(RADEON_CP_START, radeon_cp_start_kms, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
 333         DRM_IOCTL_DEF_DRV(RADEON_CP_STOP, radeon_cp_stop_kms, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
 334         DRM_IOCTL_DEF_DRV(RADEON_CP_RESET, radeon_cp_reset_kms, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
 335         DRM_IOCTL_DEF_DRV(RADEON_CP_IDLE, radeon_cp_idle_kms, DRM_AUTH),
 336         DRM_IOCTL_DEF_DRV(RADEON_CP_RESUME, radeon_cp_resume_kms, DRM_AUTH),
 337         DRM_IOCTL_DEF_DRV(RADEON_RESET, radeon_engine_reset_kms, DRM_AUTH),
 338         DRM_IOCTL_DEF_DRV(RADEON_FULLSCREEN, radeon_fullscreen_kms, DRM_AUTH),
 339         DRM_IOCTL_DEF_DRV(RADEON_SWAP, radeon_cp_swap_kms, DRM_AUTH),
 340         DRM_IOCTL_DEF_DRV(RADEON_CLEAR, radeon_cp_clear_kms, DRM_AUTH),
 341         DRM_IOCTL_DEF_DRV(RADEON_VERTEX, radeon_cp_vertex_kms, DRM_AUTH),
 342         DRM_IOCTL_DEF_DRV(RADEON_INDICES, radeon_cp_indices_kms, DRM_AUTH),
 343         DRM_IOCTL_DEF_DRV(RADEON_TEXTURE, radeon_cp_texture_kms, DRM_AUTH),
 344         DRM_IOCTL_DEF_DRV(RADEON_STIPPLE, radeon_cp_stipple_kms, DRM_AUTH),
 345         DRM_IOCTL_DEF_DRV(RADEON_INDIRECT, radeon_cp_indirect_kms, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
 346         DRM_IOCTL_DEF_DRV(RADEON_VERTEX2, radeon_cp_vertex2_kms, DRM_AUTH),
 347         DRM_IOCTL_DEF_DRV(RADEON_CMDBUF, radeon_cp_cmdbuf_kms, DRM_AUTH),
 348         DRM_IOCTL_DEF_DRV(RADEON_GETPARAM, radeon_cp_getparam_kms, DRM_AUTH),
 349         DRM_IOCTL_DEF_DRV(RADEON_FLIP, radeon_cp_flip_kms, DRM_AUTH),
 350         DRM_IOCTL_DEF_DRV(RADEON_ALLOC, radeon_mem_alloc_kms, DRM_AUTH),
 351         DRM_IOCTL_DEF_DRV(RADEON_FREE, radeon_mem_free_kms, DRM_AUTH),
 352         DRM_IOCTL_DEF_DRV(RADEON_INIT_HEAP, radeon_mem_init_heap_kms, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
 353         DRM_IOCTL_DEF_DRV(RADEON_IRQ_EMIT, radeon_irq_emit_kms, DRM_AUTH),
 354         DRM_IOCTL_DEF_DRV(RADEON_IRQ_WAIT, radeon_irq_wait_kms, DRM_AUTH),
 355         DRM_IOCTL_DEF_DRV(RADEON_SETPARAM, radeon_cp_setparam_kms, DRM_AUTH),
 356         DRM_IOCTL_DEF_DRV(RADEON_SURF_ALLOC, radeon_surface_alloc_kms, DRM_AUTH),
 357         DRM_IOCTL_DEF_DRV(RADEON_SURF_FREE, radeon_surface_free_kms, DRM_AUTH),
 358         /* KMS */
 359         DRM_IOCTL_DEF_DRV(RADEON_GEM_INFO, radeon_gem_info_ioctl, DRM_AUTH|DRM_UNLOCKED),
 360         DRM_IOCTL_DEF_DRV(RADEON_GEM_CREATE, radeon_gem_create_ioctl, DRM_AUTH|DRM_UNLOCKED),
 361         DRM_IOCTL_DEF_DRV(RADEON_GEM_MMAP, radeon_gem_mmap_ioctl, DRM_AUTH|DRM_UNLOCKED),
 362         DRM_IOCTL_DEF_DRV(RADEON_GEM_SET_DOMAIN, radeon_gem_set_domain_ioctl, DRM_AUTH|DRM_UNLOCKED),
 363         DRM_IOCTL_DEF_DRV(RADEON_GEM_PREAD, radeon_gem_pread_ioctl, DRM_AUTH|DRM_UNLOCKED),
 364         DRM_IOCTL_DEF_DRV(RADEON_GEM_PWRITE, radeon_gem_pwrite_ioctl, DRM_AUTH|DRM_UNLOCKED),
 365         DRM_IOCTL_DEF_DRV(RADEON_GEM_WAIT_IDLE, radeon_gem_wait_idle_ioctl, DRM_AUTH|DRM_UNLOCKED),
 366         DRM_IOCTL_DEF_DRV(RADEON_CS, radeon_cs_ioctl, DRM_AUTH|DRM_UNLOCKED),
 367         DRM_IOCTL_DEF_DRV(RADEON_INFO, radeon_info_ioctl, DRM_AUTH|DRM_UNLOCKED),
 368         DRM_IOCTL_DEF_DRV(RADEON_GEM_SET_TILING, radeon_gem_set_tiling_ioctl, DRM_AUTH|DRM_UNLOCKED),
 369         DRM_IOCTL_DEF_DRV(RADEON_GEM_GET_TILING, radeon_gem_get_tiling_ioctl, DRM_AUTH|DRM_UNLOCKED),
 370         DRM_IOCTL_DEF_DRV(RADEON_GEM_BUSY, radeon_gem_busy_ioctl, DRM_AUTH|DRM_UNLOCKED),
 371 };
 372 int radeon_max_kms_ioctl = DRM_ARRAY_SIZE(radeon_ioctls_kms);