2 * Copyright 2010 Red Hat Inc.
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5 * copy of this software and associated documentation files (the "Software"),
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9 * Software is furnished to do so, subject to the following conditions:
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
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15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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26 #include "nouveau_drv.h"
27 #include "nouveau_mm.h"
30 nvc0_vram_flags_valid(struct drm_device *dev, u32 tile_flags)
32 if (likely(!(tile_flags & NOUVEAU_GEM_TILE_LAYOUT_MASK)))
38 nvc0_vram_new(struct drm_device *dev, u64 size, u32 align, u32 ncmin,
39 u32 type, struct nouveau_vram **pvram)
41 struct drm_nouveau_private *dev_priv = dev->dev_private;
42 struct ttm_bo_device *bdev = &dev_priv->ttm.bdev;
43 struct ttm_mem_type_manager *man = &bdev->man[TTM_PL_VRAM];
44 struct nouveau_mm *mm = man->priv;
45 struct nouveau_mm_node *r;
46 struct nouveau_vram *vram;
53 vram = kzalloc(sizeof(*vram), GFP_KERNEL);
57 INIT_LIST_HEAD(&vram->regions);
58 vram->dev = dev_priv->dev;
62 mutex_lock(&mm->mutex);
64 ret = nouveau_mm_get(mm, 1, size, ncmin, align, &r);
66 mutex_unlock(&mm->mutex);
67 nv50_vram_del(dev, &vram);
71 list_add_tail(&r->rl_entry, &vram->regions);
74 mutex_unlock(&mm->mutex);
76 r = list_first_entry(&vram->regions, struct nouveau_mm_node, rl_entry);
77 vram->offset = (u64)r->offset << 12;
83 nvc0_vram_init(struct drm_device *dev)
85 struct drm_nouveau_private *dev_priv = dev->dev_private;
87 dev_priv->vram_size = nv_rd32(dev, 0x10f20c) << 20;
88 dev_priv->vram_size *= nv_rd32(dev, 0x121c74);
89 dev_priv->vram_rblock_size = 4096;