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 switch (tile_flags & NOUVEAU_GEM_TILE_LAYOUT_MASK) {
46 nvc0_vram_new(struct drm_device *dev, u64 size, u32 align, u32 ncmin,
47 u32 type, struct nouveau_vram **pvram)
49 struct drm_nouveau_private *dev_priv = dev->dev_private;
50 struct ttm_bo_device *bdev = &dev_priv->ttm.bdev;
51 struct ttm_mem_type_manager *man = &bdev->man[TTM_PL_VRAM];
52 struct nouveau_mm *mm = man->priv;
53 struct nouveau_mm_node *r;
54 struct nouveau_vram *vram;
61 vram = kzalloc(sizeof(*vram), GFP_KERNEL);
65 INIT_LIST_HEAD(&vram->regions);
66 vram->dev = dev_priv->dev;
70 mutex_lock(&mm->mutex);
72 ret = nouveau_mm_get(mm, 1, size, ncmin, align, &r);
74 mutex_unlock(&mm->mutex);
75 nv50_vram_del(dev, &vram);
79 list_add_tail(&r->rl_entry, &vram->regions);
82 mutex_unlock(&mm->mutex);
84 r = list_first_entry(&vram->regions, struct nouveau_mm_node, rl_entry);
85 vram->offset = (u64)r->offset << 12;
91 nvc0_vram_init(struct drm_device *dev)
93 struct drm_nouveau_private *dev_priv = dev->dev_private;
95 dev_priv->vram_size = nv_rd32(dev, 0x10f20c) << 20;
96 dev_priv->vram_size *= nv_rd32(dev, 0x121c74);
97 dev_priv->vram_rblock_size = 4096;