2 * Copyright 2010 Red Hat Inc.
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
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.
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20 * OTHER DEALINGS IN THE SOFTWARE.
26 #include "nouveau_drv.h"
27 #include "nouveau_mm.h"
33 static const u8 types[256] = {
34 1, 1, 3, 3, 3, 3, 0, 3, 3, 3, 3, 0, 0, 0, 0, 0,
35 0, 1, 0, 0, 0, 0, 0, 3, 3, 3, 3, 0, 0, 0, 0, 0,
36 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0,
37 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 3, 3, 3, 3, 3,
38 3, 3, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0,
39 0, 3, 3, 3, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
40 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
41 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0,
42 0, 0, 0, 0, 0, 0, 3, 3, 3, 3, 0, 1, 1, 1, 1, 0,
43 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
44 0, 0, 0, 3, 3, 3, 3, 1, 1, 1, 1, 0, 0, 0, 0, 0,
45 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3,
46 3, 3, 3, 3, 0, 0, 0, 0, 0, 0, 0, 0, 3, 3, 3, 3,
47 3, 3, 0, 0, 0, 0, 0, 0, 3, 0, 0, 3, 0, 3, 0, 3,
48 3, 0, 3, 3, 3, 3, 3, 0, 0, 3, 0, 3, 0, 3, 3, 0,
49 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 0, 1, 1, 0
53 nvc0_vram_flags_valid(struct drm_device *dev, u32 tile_flags)
55 u8 memtype = (tile_flags & NOUVEAU_GEM_TILE_LAYOUT_MASK) >> 8;
56 return likely((types[memtype] == 1));
60 nvc0_vram_new(struct drm_device *dev, u64 size, u32 align, u32 ncmin,
61 u32 type, struct nouveau_mem **pmem)
63 struct drm_nouveau_private *dev_priv = dev->dev_private;
64 struct nouveau_mm *mm = &dev_priv->engine.vram.mm;
65 struct nouveau_mm_node *r;
66 struct nouveau_mem *mem;
73 mem = kzalloc(sizeof(*mem), GFP_KERNEL);
77 INIT_LIST_HEAD(&mem->regions);
78 mem->dev = dev_priv->dev;
79 mem->memtype = (type & 0xff);
82 mutex_lock(&mm->mutex);
84 ret = nouveau_mm_get(mm, 1, size, ncmin, align, &r);
86 mutex_unlock(&mm->mutex);
87 nv50_vram_del(dev, &mem);
91 list_add_tail(&r->rl_entry, &mem->regions);
94 mutex_unlock(&mm->mutex);
96 r = list_first_entry(&mem->regions, struct nouveau_mm_node, rl_entry);
97 mem->offset = (u64)r->offset << 12;
103 nvc0_vram_init(struct drm_device *dev)
105 struct drm_nouveau_private *dev_priv = dev->dev_private;
106 struct nouveau_vram_engine *vram = &dev_priv->engine.vram;
107 const u32 rsvd_head = ( 256 * 1024) >> 12; /* vga memory */
108 const u32 rsvd_tail = (1024 * 1024) >> 12; /* vbios etc */
111 dev_priv->vram_size = nv_rd32(dev, 0x10f20c) << 20;
112 dev_priv->vram_size *= nv_rd32(dev, 0x121c74);
114 length = (dev_priv->vram_size >> 12) - rsvd_head - rsvd_tail;
116 return nouveau_mm_init(&vram->mm, rsvd_head, length, 1);