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git.proxmox.com Git - mirror_ubuntu-hirsute-kernel.git/blob - drivers/gpu/drm/nouveau/core/subdev/devinit/nv10.c
2 * Copyright (C) 2010 Francisco Jerez.
5 * Permission is hereby granted, free of charge, to any person obtaining
6 * a copy of this software and associated documentation files (the
7 * "Software"), to deal in the Software without restriction, including
8 * without limitation the rights to use, copy, modify, merge, publish,
9 * distribute, sublicense, and/or sell copies of the Software, and to
10 * permit persons to whom the Software is furnished to do so, subject to
11 * the following conditions:
13 * The above copyright notice and this permission notice (including the
14 * next paragraph) shall be included in all copies or substantial
15 * portions of the Software.
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
18 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
20 * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
21 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
22 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
23 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
27 #include <subdev/vga.h>
33 nv10_devinit_meminit(struct nouveau_devinit
*devinit
)
35 struct nv04_devinit_priv
*priv
= (void *)devinit
;
36 static const int mem_width
[] = { 0x10, 0x00, 0x20 };
38 uint32_t patt
= 0xdeadbeef;
39 struct io_mapping
*fb
;
42 if (nv_device(priv
)->card_type
>= NV_11
&&
43 nv_device(priv
)->chipset
>= 0x17)
48 /* Map the framebuffer aperture */
49 fb
= fbmem_init(nv_device(priv
)->pdev
);
51 nv_error(priv
, "failed to map fb\n");
55 nv_wr32(priv
, NV10_PFB_REFCTRL
, NV10_PFB_REFCTRL_VALID_1
);
57 /* Probe memory bus width */
58 for (i
= 0; i
< mem_width_count
; i
++) {
59 nv_mask(priv
, NV04_PFB_CFG0
, 0x30, mem_width
[i
]);
61 for (j
= 0; j
< 4; j
++) {
62 for (k
= 0; k
< 4; k
++)
63 fbmem_poke(fb
, 0x1c, 0);
65 fbmem_poke(fb
, 0x1c, patt
);
66 fbmem_poke(fb
, 0x3c, 0);
68 if (fbmem_peek(fb
, 0x1c) == patt
)
76 /* Probe amount of installed memory */
77 for (i
= 0; i
< 4; i
++) {
78 int off
= nv_rd32(priv
, 0x10020c) - 0x100000;
80 fbmem_poke(fb
, off
, patt
);
88 if (fbmem_peek(fb
, off
) == patt
)
92 /* IC missing - disable the upper half memory space. */
93 nv_mask(priv
, NV04_PFB_CFG0
, 0x1000, 0);
99 struct nouveau_oclass
*
100 nv10_devinit_oclass
= &(struct nouveau_devinit_impl
) {
101 .base
.handle
= NV_SUBDEV(DEVINIT
, 0x10),
102 .base
.ofuncs
= &(struct nouveau_ofuncs
) {
103 .ctor
= nv04_devinit_ctor
,
104 .dtor
= nv04_devinit_dtor
,
105 .init
= nv04_devinit_init
,
106 .fini
= nv04_devinit_fini
,
108 .meminit
= nv10_devinit_meminit
,
109 .pll_set
= nv04_devinit_pll_set
,