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  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.h"
  30. #include "radeon_drm.h"
  31. #include "radeon.h"
  32.  
  33. int radeon_gem_object_init(struct drm_gem_object *obj)
  34. {
  35.         /* we do nothings here */
  36.         return 0;
  37. }
  38.  
  39. void radeon_gem_object_free(struct drm_gem_object *gobj)
  40. {
  41.         struct radeon_bo *robj = gem_to_radeon_bo(gobj);
  42.  
  43.         if (robj) {
  44.                 radeon_bo_unref(&robj);
  45.         }
  46. }
  47.  
  48. int radeon_gem_object_create(struct radeon_device *rdev, int size,
  49.                  int alignment, int initial_domain,
  50.                  bool discardable, bool kernel,
  51.                                 struct drm_gem_object **obj)
  52. {
  53.     struct radeon_bo *robj;
  54.         int r;
  55.  
  56.         *obj = NULL;
  57.         /* At least align on page size */
  58.         if (alignment < PAGE_SIZE) {
  59.                 alignment = PAGE_SIZE;
  60.         }
  61.         r = radeon_bo_create(rdev, size, alignment, kernel, initial_domain, &robj);
  62.         if (r) {
  63.                 if (r != -ERESTARTSYS)
  64.                         DRM_ERROR("Failed to allocate GEM object (%d, %d, %u, %d)\n",
  65.                                   size, initial_domain, alignment, r);
  66.         return r;
  67.         }
  68.         *obj = &robj->gem_base;
  69.  
  70.         mutex_lock(&rdev->gem.mutex);
  71.         list_add_tail(&robj->list, &rdev->gem.objects);
  72.         mutex_unlock(&rdev->gem.mutex);
  73.  
  74.         return 0;
  75. }
  76.  
  77. int radeon_gem_object_pin(struct drm_gem_object *obj, uint32_t pin_domain,
  78.                           uint64_t *gpu_addr)
  79. {
  80.         struct radeon_bo *robj = gem_to_radeon_bo(obj);
  81.         int r;
  82.  
  83.         r = radeon_bo_reserve(robj, false);
  84.         if (unlikely(r != 0))
  85.                 return r;
  86.         r = radeon_bo_pin(robj, pin_domain, gpu_addr);
  87.         radeon_bo_unreserve(robj);
  88.         return r;
  89. }
  90.  
  91. void radeon_gem_object_unpin(struct drm_gem_object *obj)
  92. {
  93.         struct radeon_bo *robj = gem_to_radeon_bo(obj);
  94.         int r;
  95.  
  96.         r = radeon_bo_reserve(robj, false);
  97.         if (likely(r == 0)) {
  98.                 radeon_bo_unpin(robj);
  99.                 radeon_bo_unreserve(robj);
  100.         }
  101. }
  102.  
  103. int radeon_gem_set_domain(struct drm_gem_object *gobj,
  104.                           uint32_t rdomain, uint32_t wdomain)
  105. {
  106.         struct radeon_bo *robj;
  107.         uint32_t domain;
  108.         int r;
  109.  
  110.         /* FIXME: reeimplement */
  111.         robj = gem_to_radeon_bo(gobj);
  112.         /* work out where to validate the buffer to */
  113.         domain = wdomain;
  114.         if (!domain) {
  115.                 domain = rdomain;
  116.         }
  117.         if (!domain) {
  118.                 /* Do nothings */
  119.                 printk(KERN_WARNING "Set domain withou domain !\n");
  120.                 return 0;
  121.         }
  122.         if (domain == RADEON_GEM_DOMAIN_CPU) {
  123.                 /* Asking for cpu access wait for object idle */
  124. //              r = radeon_bo_wait(robj, NULL, false);
  125. //              if (r) {
  126. //                      printk(KERN_ERR "Failed to wait for object !\n");
  127. //                      return r;
  128. //              }
  129.         }
  130.         return 0;
  131. }
  132.  
  133. int radeon_gem_init(struct radeon_device *rdev)
  134. {
  135.         INIT_LIST_HEAD(&rdev->gem.objects);
  136.         return 0;
  137. }
  138.  
  139. void radeon_gem_fini(struct radeon_device *rdev)
  140. {
  141.  //  radeon_object_force_delete(rdev);
  142. }
  143.  
  144. #if 0
  145. /*
  146.  * GEM ioctls.
  147.  */
  148. int radeon_gem_info_ioctl(struct drm_device *dev, void *data,
  149.                           struct drm_file *filp)
  150. {
  151.         struct radeon_device *rdev = dev->dev_private;
  152.         struct drm_radeon_gem_info *args = data;
  153.         struct ttm_mem_type_manager *man;
  154.  
  155.         man = &rdev->mman.bdev.man[TTM_PL_VRAM];
  156.  
  157.         args->vram_size = rdev->mc.real_vram_size;
  158.         args->vram_visible = (u64)man->size << PAGE_SHIFT;
  159.         if (rdev->stollen_vga_memory)
  160.                 args->vram_visible -= radeon_bo_size(rdev->stollen_vga_memory);
  161.         args->vram_visible -= radeon_fbdev_total_size(rdev);
  162.         args->gart_size = rdev->mc.gtt_size - rdev->cp.ring_size - 4096 -
  163.                 RADEON_IB_POOL_SIZE*64*1024;
  164.         return 0;
  165. }
  166.  
  167. int radeon_gem_pread_ioctl(struct drm_device *dev, void *data,
  168.                            struct drm_file *filp)
  169. {
  170.         /* TODO: implement */
  171.         DRM_ERROR("unimplemented %s\n", __func__);
  172.         return -ENOSYS;
  173. }
  174.  
  175. int radeon_gem_pwrite_ioctl(struct drm_device *dev, void *data,
  176.                             struct drm_file *filp)
  177. {
  178.         /* TODO: implement */
  179.         DRM_ERROR("unimplemented %s\n", __func__);
  180.         return -ENOSYS;
  181. }
  182.  
  183. int radeon_gem_create_ioctl(struct drm_device *dev, void *data,
  184.                             struct drm_file *filp)
  185. {
  186.         struct radeon_device *rdev = dev->dev_private;
  187.         struct drm_radeon_gem_create *args = data;
  188.         struct drm_gem_object *gobj;
  189.         uint32_t handle;
  190.         int r;
  191.  
  192.         /* create a gem object to contain this object in */
  193.         args->size = roundup(args->size, PAGE_SIZE);
  194.         r = radeon_gem_object_create(rdev, args->size, args->alignment,
  195.                                      args->initial_domain, false,
  196.                                         false, &gobj);
  197.         if (r) {
  198.                 return r;
  199.         }
  200.         r = drm_gem_handle_create(filp, gobj, &handle);
  201.         /* drop reference from allocate - handle holds it now */
  202.         drm_gem_object_unreference_unlocked(gobj);
  203.         if (r) {
  204.                 return r;
  205.         }
  206.         args->handle = handle;
  207.         return 0;
  208. }
  209.  
  210. int radeon_gem_set_domain_ioctl(struct drm_device *dev, void *data,
  211.                                 struct drm_file *filp)
  212. {
  213.         /* transition the BO to a domain -
  214.          * just validate the BO into a certain domain */
  215.         struct drm_radeon_gem_set_domain *args = data;
  216.         struct drm_gem_object *gobj;
  217.         struct radeon_bo *robj;
  218.         int r;
  219.  
  220.         /* for now if someone requests domain CPU -
  221.          * just make sure the buffer is finished with */
  222.  
  223.         /* just do a BO wait for now */
  224.         gobj = drm_gem_object_lookup(dev, filp, args->handle);
  225.         if (gobj == NULL) {
  226.                 return -ENOENT;
  227.         }
  228.         robj = gem_to_radeon_bo(gobj);
  229.  
  230.         r = radeon_gem_set_domain(gobj, args->read_domains, args->write_domain);
  231.  
  232.         drm_gem_object_unreference_unlocked(gobj);
  233.         return r;
  234. }
  235.  
  236. int radeon_mode_dumb_mmap(struct drm_file *filp,
  237.                           struct drm_device *dev,
  238.                           uint32_t handle, uint64_t *offset_p)
  239. {
  240.         struct drm_gem_object *gobj;
  241.         struct radeon_bo *robj;
  242.  
  243.         gobj = drm_gem_object_lookup(dev, filp, handle);
  244.         if (gobj == NULL) {
  245.                 return -ENOENT;
  246.         }
  247.         robj = gem_to_radeon_bo(gobj);
  248.         *offset_p = radeon_bo_mmap_offset(robj);
  249.         drm_gem_object_unreference_unlocked(gobj);
  250.         return 0;
  251. }
  252.  
  253. int radeon_gem_mmap_ioctl(struct drm_device *dev, void *data,
  254.                           struct drm_file *filp)
  255. {
  256.         struct drm_radeon_gem_mmap *args = data;
  257.  
  258.         return radeon_mode_dumb_mmap(filp, dev, args->handle, &args->addr_ptr);
  259. }
  260.  
  261. int radeon_gem_busy_ioctl(struct drm_device *dev, void *data,
  262.                           struct drm_file *filp)
  263. {
  264.         struct drm_radeon_gem_busy *args = data;
  265.         struct drm_gem_object *gobj;
  266.         struct radeon_bo *robj;
  267.         int r;
  268.         uint32_t cur_placement = 0;
  269.  
  270.         gobj = drm_gem_object_lookup(dev, filp, args->handle);
  271.         if (gobj == NULL) {
  272.                 return -ENOENT;
  273.         }
  274.         robj = gem_to_radeon_bo(gobj);
  275.         r = radeon_bo_wait(robj, &cur_placement, true);
  276.         switch (cur_placement) {
  277.         case TTM_PL_VRAM:
  278.                 args->domain = RADEON_GEM_DOMAIN_VRAM;
  279.                 break;
  280.         case TTM_PL_TT:
  281.                 args->domain = RADEON_GEM_DOMAIN_GTT;
  282.                 break;
  283.         case TTM_PL_SYSTEM:
  284.                 args->domain = RADEON_GEM_DOMAIN_CPU;
  285.         default:
  286.                 break;
  287.         }
  288.         drm_gem_object_unreference_unlocked(gobj);
  289.         return r;
  290. }
  291.  
  292. int radeon_gem_wait_idle_ioctl(struct drm_device *dev, void *data,
  293.                               struct drm_file *filp)
  294. {
  295.         struct drm_radeon_gem_wait_idle *args = data;
  296.         struct drm_gem_object *gobj;
  297.         struct radeon_bo *robj;
  298.         int r;
  299.  
  300.         gobj = drm_gem_object_lookup(dev, filp, args->handle);
  301.         if (gobj == NULL) {
  302.                 return -ENOENT;
  303.         }
  304.         robj = gem_to_radeon_bo(gobj);
  305.         r = radeon_bo_wait(robj, NULL, false);
  306.         /* callback hw specific functions if any */
  307.         if (robj->rdev->asic->ioctl_wait_idle)
  308.                 robj->rdev->asic->ioctl_wait_idle(robj->rdev, robj);
  309.         drm_gem_object_unreference_unlocked(gobj);
  310.         return r;
  311. }
  312.  
  313. int radeon_gem_set_tiling_ioctl(struct drm_device *dev, void *data,
  314.                                 struct drm_file *filp)
  315. {
  316.         struct drm_radeon_gem_set_tiling *args = data;
  317.         struct drm_gem_object *gobj;
  318.         struct radeon_bo *robj;
  319.         int r = 0;
  320.  
  321.         DRM_DEBUG("%d \n", args->handle);
  322.         gobj = drm_gem_object_lookup(dev, filp, args->handle);
  323.         if (gobj == NULL)
  324.                 return -ENOENT;
  325.         robj = gem_to_radeon_bo(gobj);
  326.         r = radeon_bo_set_tiling_flags(robj, args->tiling_flags, args->pitch);
  327.         drm_gem_object_unreference_unlocked(gobj);
  328.         return r;
  329. }
  330.  
  331. #endif
  332.