| 1 | /* $NetBSD: nouveau_subdev_devinit_nv10.c,v 1.1.1.1 2014/08/06 12:36:30 riastradh Exp $ */ |
| 2 | |
| 3 | /* |
| 4 | * Copyright (C) 2010 Francisco Jerez. |
| 5 | * All Rights Reserved. |
| 6 | * |
| 7 | * Permission is hereby granted, free of charge, to any person obtaining |
| 8 | * a copy of this software and associated documentation files (the |
| 9 | * "Software"), to deal in the Software without restriction, including |
| 10 | * without limitation the rights to use, copy, modify, merge, publish, |
| 11 | * distribute, sublicense, and/or sell copies of the Software, and to |
| 12 | * permit persons to whom the Software is furnished to do so, subject to |
| 13 | * the following conditions: |
| 14 | * |
| 15 | * The above copyright notice and this permission notice (including the |
| 16 | * next paragraph) shall be included in all copies or substantial |
| 17 | * portions of the Software. |
| 18 | * |
| 19 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
| 20 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| 21 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. |
| 22 | * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE |
| 23 | * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION |
| 24 | * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION |
| 25 | * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
| 26 | * |
| 27 | */ |
| 28 | |
| 29 | #include <sys/cdefs.h> |
| 30 | __KERNEL_RCSID(0, "$NetBSD: nouveau_subdev_devinit_nv10.c,v 1.1.1.1 2014/08/06 12:36:30 riastradh Exp $" ); |
| 31 | |
| 32 | #include <subdev/vga.h> |
| 33 | |
| 34 | #include "fbmem.h" |
| 35 | #include "nv04.h" |
| 36 | |
| 37 | static void |
| 38 | nv10_devinit_meminit(struct nouveau_devinit *devinit) |
| 39 | { |
| 40 | struct nv04_devinit_priv *priv = (void *)devinit; |
| 41 | static const int mem_width[] = { 0x10, 0x00, 0x20 }; |
| 42 | int mem_width_count; |
| 43 | uint32_t patt = 0xdeadbeef; |
| 44 | struct io_mapping *fb; |
| 45 | int i, j, k; |
| 46 | |
| 47 | if (nv_device(priv)->card_type >= NV_11 && |
| 48 | nv_device(priv)->chipset >= 0x17) |
| 49 | mem_width_count = 3; |
| 50 | else |
| 51 | mem_width_count = 2; |
| 52 | |
| 53 | /* Map the framebuffer aperture */ |
| 54 | fb = fbmem_init(nv_device(priv)); |
| 55 | if (!fb) { |
| 56 | nv_error(priv, "failed to map fb\n" ); |
| 57 | return; |
| 58 | } |
| 59 | |
| 60 | nv_wr32(priv, NV10_PFB_REFCTRL, NV10_PFB_REFCTRL_VALID_1); |
| 61 | |
| 62 | /* Probe memory bus width */ |
| 63 | for (i = 0; i < mem_width_count; i++) { |
| 64 | nv_mask(priv, NV04_PFB_CFG0, 0x30, mem_width[i]); |
| 65 | |
| 66 | for (j = 0; j < 4; j++) { |
| 67 | for (k = 0; k < 4; k++) |
| 68 | fbmem_poke(fb, 0x1c, 0); |
| 69 | |
| 70 | fbmem_poke(fb, 0x1c, patt); |
| 71 | fbmem_poke(fb, 0x3c, 0); |
| 72 | |
| 73 | if (fbmem_peek(fb, 0x1c) == patt) |
| 74 | goto mem_width_found; |
| 75 | } |
| 76 | } |
| 77 | |
| 78 | mem_width_found: |
| 79 | patt <<= 1; |
| 80 | |
| 81 | /* Probe amount of installed memory */ |
| 82 | for (i = 0; i < 4; i++) { |
| 83 | int off = nv_rd32(priv, 0x10020c) - 0x100000; |
| 84 | |
| 85 | fbmem_poke(fb, off, patt); |
| 86 | fbmem_poke(fb, 0, 0); |
| 87 | |
| 88 | fbmem_peek(fb, 0); |
| 89 | fbmem_peek(fb, 0); |
| 90 | fbmem_peek(fb, 0); |
| 91 | fbmem_peek(fb, 0); |
| 92 | |
| 93 | if (fbmem_peek(fb, off) == patt) |
| 94 | goto amount_found; |
| 95 | } |
| 96 | |
| 97 | /* IC missing - disable the upper half memory space. */ |
| 98 | nv_mask(priv, NV04_PFB_CFG0, 0x1000, 0); |
| 99 | |
| 100 | amount_found: |
| 101 | fbmem_fini(fb); |
| 102 | } |
| 103 | |
| 104 | struct nouveau_oclass * |
| 105 | nv10_devinit_oclass = &(struct nouveau_devinit_impl) { |
| 106 | .base.handle = NV_SUBDEV(DEVINIT, 0x10), |
| 107 | .base.ofuncs = &(struct nouveau_ofuncs) { |
| 108 | .ctor = nv04_devinit_ctor, |
| 109 | .dtor = nv04_devinit_dtor, |
| 110 | .init = nv04_devinit_init, |
| 111 | .fini = nv04_devinit_fini, |
| 112 | }, |
| 113 | .meminit = nv10_devinit_meminit, |
| 114 | .pll_set = nv04_devinit_pll_set, |
| 115 | }.base; |
| 116 | |