1 files changed, 57 insertions, 73 deletions

diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c
index a835b6fe42a1..fae5c158351c 100644
--- a/drivers/gpu/drm/ttm/ttm_bo.c
+++ b/drivers/gpu/drm/ttm/ttm_bo.c
@@ -1002,9 +1002,9 @@ static int ttm_bo_mem_compat(struct ttm_placement *placement,
         return -1;
 }
 
-int ttm_buffer_object_validate(struct ttm_buffer_object *bo,
-                                struct ttm_placement *placement,
-                                bool interruptible, bool no_wait)
+int ttm_bo_validate(struct ttm_buffer_object *bo,
+                        struct ttm_placement *placement,
+                        bool interruptible, bool no_wait)
 {
         int ret;
 
@@ -1040,55 +1040,57 @@ int ttm_buffer_object_validate(struct ttm_buffer_object *bo,
         }
         return 0;
 }
-EXPORT_SYMBOL(ttm_buffer_object_validate);
+EXPORT_SYMBOL(ttm_bo_validate);
 
-int
-ttm_bo_check_placement(struct ttm_buffer_object *bo,
-                       uint32_t set_flags, uint32_t clr_flags)
+int ttm_bo_check_placement(struct ttm_buffer_object *bo,
+                                struct ttm_placement *placement)
 {
-        uint32_t new_mask = set_flags | clr_flags;
-
-        if ((bo->type == ttm_bo_type_user) &&
-            (clr_flags & TTM_PL_FLAG_CACHED)) {
-                printk(KERN_ERR TTM_PFX
-                       "User buffers require cache-coherent memory.\n");
-                return -EINVAL;
-        }
+        int i;
 
-        if (!capable(CAP_SYS_ADMIN)) {
-                if (new_mask & TTM_PL_FLAG_NO_EVICT) {
-                        printk(KERN_ERR TTM_PFX "Need to be root to modify"
-                               " NO_EVICT status.\n");
+        if (placement->fpfn || placement->lpfn) {
+                if (bo->mem.num_pages > (placement->lpfn - placement->fpfn)) {
+                        printk(KERN_ERR TTM_PFX "Page number range to small "
+                                "Need %lu pages, range is [%u, %u]\n",
+                                bo->mem.num_pages, placement->fpfn,
+                                placement->lpfn);
                         return -EINVAL;
                 }
-
-                if ((clr_flags & bo->mem.placement & TTM_PL_MASK_MEMTYPE) &&
-                    (bo->mem.placement & TTM_PL_FLAG_NO_EVICT)) {
-                        printk(KERN_ERR TTM_PFX
-                               "Incompatible memory specification"
-                               " for NO_EVICT buffer.\n");
-                        return -EINVAL;
+        }
+        for (i = 0; i < placement->num_placement; i++) {
+                if (!capable(CAP_SYS_ADMIN)) {
+                        if (placement->placement[i] & TTM_PL_FLAG_NO_EVICT) {
+                                printk(KERN_ERR TTM_PFX "Need to be root to "
+                                        "modify NO_EVICT status.\n");
+                                return -EINVAL;
+                        }
+                }
+        }
+        for (i = 0; i < placement->num_busy_placement; i++) {
+                if (!capable(CAP_SYS_ADMIN)) {
+                        if (placement->busy_placement[i] & TTM_PL_FLAG_NO_EVICT) {
+                                printk(KERN_ERR TTM_PFX "Need to be root to "
+                                        "modify NO_EVICT status.\n");
+                                return -EINVAL;
+                        }
                 }
         }
         return 0;
 }
 
-int ttm_buffer_object_init(struct ttm_bo_device *bdev,
-                           struct ttm_buffer_object *bo,
-                           unsigned long size,
-                           enum ttm_bo_type type,
-                           uint32_t flags,
-                           uint32_t page_alignment,
-                           unsigned long buffer_start,
-                           bool interruptible,
-                           struct file *persistant_swap_storage,
-                           size_t acc_size,
-                           void (*destroy) (struct ttm_buffer_object *))
+int ttm_bo_init(struct ttm_bo_device *bdev,
+                struct ttm_buffer_object *bo,
+                unsigned long size,
+                enum ttm_bo_type type,
+                struct ttm_placement *placement,
+                uint32_t page_alignment,
+                unsigned long buffer_start,
+                bool interruptible,
+                struct file *persistant_swap_storage,
+                size_t acc_size,
+                void (*destroy) (struct ttm_buffer_object *))
 {
-        int i, c, ret = 0;
+        int ret = 0;
         unsigned long num_pages;
-        uint32_t placements[8];
-        struct ttm_placement placement;
 
         size += buffer_start & ~PAGE_MASK;
         num_pages = (size + PAGE_SIZE - 1) >> PAGE_SHIFT;
@@ -1123,38 +1125,21 @@ int ttm_buffer_object_init(struct ttm_bo_device *bdev,
         bo->acc_size = acc_size;
         atomic_inc(&bo->glob->bo_count);
 
-        ret = ttm_bo_check_placement(bo, flags, 0ULL);
+        ret = ttm_bo_check_placement(bo, placement);
         if (unlikely(ret != 0))
                 goto out_err;
 
         /*
-         * If no caching attributes are set, accept any form of caching.
-         */
-
-        if ((flags & TTM_PL_MASK_CACHING) == 0)
-                flags |= TTM_PL_MASK_CACHING;
-
-        /*
          * For ttm_bo_type_device buffers, allocate
          * address space from the device.
          */
-
         if (bo->type == ttm_bo_type_device) {
                 ret = ttm_bo_setup_vm(bo);
                 if (ret)
                         goto out_err;
         }
 
-        placement.fpfn = 0;
-        placement.lpfn = 0;
-        for (i = 0, c = 0; i <= TTM_PL_PRIV5; i++)
-                if (flags & (1 << i))
-                        placements[c++] = (flags & ~TTM_PL_MASK_MEM) | (1 << i);
-        placement.placement = placements;
-        placement.num_placement = c;
-        placement.busy_placement = placements;
-        placement.num_busy_placement = c;
-        ret = ttm_buffer_object_validate(bo, &placement, interruptible, false);
+        ret = ttm_bo_validate(bo, placement, interruptible, false);
         if (ret)
                 goto out_err;
 
@@ -1167,7 +1152,7 @@ out_err:
 
         return ret;
 }
-EXPORT_SYMBOL(ttm_buffer_object_init);
+EXPORT_SYMBOL(ttm_bo_init);
 
 static inline size_t ttm_bo_size(struct ttm_bo_global *glob,
                                  unsigned long num_pages)
@@ -1178,15 +1163,15 @@ static inline size_t ttm_bo_size(struct ttm_bo_global *glob,
         return glob->ttm_bo_size + 2 * page_array_size;
 }
 
-int ttm_buffer_object_create(struct ttm_bo_device *bdev,
-                             unsigned long size,
-                             enum ttm_bo_type type,
-                             uint32_t flags,
-                             uint32_t page_alignment,
-                             unsigned long buffer_start,
-                             bool interruptible,
-                             struct file *persistant_swap_storage,
-                             struct ttm_buffer_object **p_bo)
+int ttm_bo_create(struct ttm_bo_device *bdev,
+                        unsigned long size,
+                        enum ttm_bo_type type,
+                        struct ttm_placement *placement,
+                        uint32_t page_alignment,
+                        unsigned long buffer_start,
+                        bool interruptible,
+                        struct file *persistant_swap_storage,
+                        struct ttm_buffer_object **p_bo)
 {
         struct ttm_buffer_object *bo;
         struct ttm_mem_global *mem_glob = bdev->glob->mem_glob;
@@ -1205,10 +1190,9 @@ int ttm_buffer_object_create(struct ttm_bo_device *bdev,
                 return -ENOMEM;
         }
 
-        ret = ttm_buffer_object_init(bdev, bo, size, type, flags,
-                                     page_alignment, buffer_start,
-                                     interruptible,
-                                     persistant_swap_storage, acc_size, NULL);
+        ret = ttm_bo_init(bdev, bo, size, type, placement, page_alignment,
+                                buffer_start, interruptible,
+                                persistant_swap_storage, acc_size, NULL);
         if (likely(ret == 0))
                 *p_bo = bo;