i2c-eg20t: change timeout value 50msec to 1000msec
[zen-stable.git] / drivers / gpu / drm / nouveau / nv50_vram.c
blob2e45e57fd8698e03a2b8fdf3fcd04b69ddf86290
1 /*
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
18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20 * OTHER DEALINGS IN THE SOFTWARE.
22 * Authors: Ben Skeggs
25 #include "drmP.h"
26 #include "nouveau_drv.h"
27 #include "nouveau_mm.h"
29 static int types[0x80] = {
30 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
31 1, 1, 1, 1, 0, 0, 0, 0, 2, 2, 2, 2, 0, 0, 0, 0,
32 1, 1, 1, 1, 1, 1, 1, 0, 2, 2, 2, 2, 2, 2, 2, 0,
33 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
34 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 0, 0,
35 0, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0,
36 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 2, 2, 2, 2,
37 1, 0, 2, 0, 1, 0, 2, 0, 1, 1, 2, 2, 1, 1, 0, 0
40 bool
41 nv50_vram_flags_valid(struct drm_device *dev, u32 tile_flags)
43 int type = (tile_flags & NOUVEAU_GEM_TILE_LAYOUT_MASK) >> 8;
45 if (likely(type < ARRAY_SIZE(types) && types[type]))
46 return true;
47 return false;
50 void
51 nv50_vram_del(struct drm_device *dev, struct nouveau_mem **pmem)
53 struct drm_nouveau_private *dev_priv = dev->dev_private;
54 struct nouveau_mm *mm = &dev_priv->engine.vram.mm;
55 struct nouveau_mm_node *this;
56 struct nouveau_mem *mem;
58 mem = *pmem;
59 *pmem = NULL;
60 if (unlikely(mem == NULL))
61 return;
63 mutex_lock(&mm->mutex);
64 while (!list_empty(&mem->regions)) {
65 this = list_first_entry(&mem->regions, struct nouveau_mm_node, rl_entry);
67 list_del(&this->rl_entry);
68 nouveau_mm_put(mm, this);
71 if (mem->tag) {
72 drm_mm_put_block(mem->tag);
73 mem->tag = NULL;
75 mutex_unlock(&mm->mutex);
77 kfree(mem);
80 int
81 nv50_vram_new(struct drm_device *dev, u64 size, u32 align, u32 size_nc,
82 u32 memtype, struct nouveau_mem **pmem)
84 struct drm_nouveau_private *dev_priv = dev->dev_private;
85 struct nouveau_mm *mm = &dev_priv->engine.vram.mm;
86 struct nouveau_mm_node *r;
87 struct nouveau_mem *mem;
88 int comp = (memtype & 0x300) >> 8;
89 int type = (memtype & 0x07f);
90 int ret;
92 if (!types[type])
93 return -EINVAL;
94 size >>= 12;
95 align >>= 12;
96 size_nc >>= 12;
98 mem = kzalloc(sizeof(*mem), GFP_KERNEL);
99 if (!mem)
100 return -ENOMEM;
102 mutex_lock(&mm->mutex);
103 if (comp) {
104 if (align == 16) {
105 struct nouveau_fb_engine *pfb = &dev_priv->engine.fb;
106 int n = (size >> 4) * comp;
108 mem->tag = drm_mm_search_free(&pfb->tag_heap, n, 0, 0);
109 if (mem->tag)
110 mem->tag = drm_mm_get_block(mem->tag, n, 0);
113 if (unlikely(!mem->tag))
114 comp = 0;
117 INIT_LIST_HEAD(&mem->regions);
118 mem->dev = dev_priv->dev;
119 mem->memtype = (comp << 7) | type;
120 mem->size = size;
122 do {
123 ret = nouveau_mm_get(mm, types[type], size, size_nc, align, &r);
124 if (ret) {
125 mutex_unlock(&mm->mutex);
126 nv50_vram_del(dev, &mem);
127 return ret;
130 list_add_tail(&r->rl_entry, &mem->regions);
131 size -= r->length;
132 } while (size);
133 mutex_unlock(&mm->mutex);
135 r = list_first_entry(&mem->regions, struct nouveau_mm_node, rl_entry);
136 mem->offset = (u64)r->offset << 12;
137 *pmem = mem;
138 return 0;
141 static u32
142 nv50_vram_rblock(struct drm_device *dev)
144 struct drm_nouveau_private *dev_priv = dev->dev_private;
145 int i, parts, colbits, rowbitsa, rowbitsb, banks;
146 u64 rowsize, predicted;
147 u32 r0, r4, rt, ru, rblock_size;
149 r0 = nv_rd32(dev, 0x100200);
150 r4 = nv_rd32(dev, 0x100204);
151 rt = nv_rd32(dev, 0x100250);
152 ru = nv_rd32(dev, 0x001540);
153 NV_DEBUG(dev, "memcfg 0x%08x 0x%08x 0x%08x 0x%08x\n", r0, r4, rt, ru);
155 for (i = 0, parts = 0; i < 8; i++) {
156 if (ru & (0x00010000 << i))
157 parts++;
160 colbits = (r4 & 0x0000f000) >> 12;
161 rowbitsa = ((r4 & 0x000f0000) >> 16) + 8;
162 rowbitsb = ((r4 & 0x00f00000) >> 20) + 8;
163 banks = 1 << (((r4 & 0x03000000) >> 24) + 2);
165 rowsize = parts * banks * (1 << colbits) * 8;
166 predicted = rowsize << rowbitsa;
167 if (r0 & 0x00000004)
168 predicted += rowsize << rowbitsb;
170 if (predicted != dev_priv->vram_size) {
171 NV_WARN(dev, "memory controller reports %dMiB VRAM\n",
172 (u32)(dev_priv->vram_size >> 20));
173 NV_WARN(dev, "we calculated %dMiB VRAM\n",
174 (u32)(predicted >> 20));
177 rblock_size = rowsize;
178 if (rt & 1)
179 rblock_size *= 3;
181 NV_DEBUG(dev, "rblock %d bytes\n", rblock_size);
182 return rblock_size;
186 nv50_vram_init(struct drm_device *dev)
188 struct drm_nouveau_private *dev_priv = dev->dev_private;
189 struct nouveau_vram_engine *vram = &dev_priv->engine.vram;
190 const u32 rsvd_head = ( 256 * 1024) >> 12; /* vga memory */
191 const u32 rsvd_tail = (1024 * 1024) >> 12; /* vbios etc */
192 u32 rblock, length;
194 dev_priv->vram_size = nv_rd32(dev, 0x10020c);
195 dev_priv->vram_size |= (dev_priv->vram_size & 0xff) << 32;
196 dev_priv->vram_size &= 0xffffffff00ULL;
198 /* IGPs, no funky reordering happens here, they don't have VRAM */
199 if (dev_priv->chipset == 0xaa ||
200 dev_priv->chipset == 0xac ||
201 dev_priv->chipset == 0xaf) {
202 dev_priv->vram_sys_base = (u64)nv_rd32(dev, 0x100e10) << 12;
203 rblock = 4096 >> 12;
204 } else {
205 rblock = nv50_vram_rblock(dev) >> 12;
208 length = (dev_priv->vram_size >> 12) - rsvd_head - rsvd_tail;
210 return nouveau_mm_init(&vram->mm, rsvd_head, length, rblock);
213 void
214 nv50_vram_fini(struct drm_device *dev)
216 struct drm_nouveau_private *dev_priv = dev->dev_private;
217 struct nouveau_vram_engine *vram = &dev_priv->engine.vram;
219 nouveau_mm_fini(&vram->mm);