| 1 | /* $NetBSD: nouveau_subdev_ibus_nve0.c,v 1.1.1.1 2014/08/06 12:36:30 riastradh Exp $ */ |
| 2 | |
| 3 | /* |
| 4 | * Copyright 2012 Red Hat Inc. |
| 5 | * |
| 6 | * Permission is hereby granted, free of charge, to any person obtaining a |
| 7 | * copy of this software and associated documentation files (the "Software"), |
| 8 | * to deal in the Software without restriction, including without limitation |
| 9 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| 10 | * and/or sell copies of the Software, and to permit persons to whom the |
| 11 | * Software is furnished to do so, subject to the following conditions: |
| 12 | * |
| 13 | * The above copyright notice and this permission notice shall be included in |
| 14 | * all copies or substantial portions of the Software. |
| 15 | * |
| 16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| 19 | * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR |
| 20 | * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, |
| 21 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
| 22 | * OTHER DEALINGS IN THE SOFTWARE. |
| 23 | * |
| 24 | * Authors: Ben Skeggs |
| 25 | */ |
| 26 | |
| 27 | #include <sys/cdefs.h> |
| 28 | __KERNEL_RCSID(0, "$NetBSD: nouveau_subdev_ibus_nve0.c,v 1.1.1.1 2014/08/06 12:36:30 riastradh Exp $" ); |
| 29 | |
| 30 | #include <subdev/ibus.h> |
| 31 | |
| 32 | struct nve0_ibus_priv { |
| 33 | struct nouveau_ibus base; |
| 34 | }; |
| 35 | |
| 36 | static void |
| 37 | nve0_ibus_intr_hub(struct nve0_ibus_priv *priv, int i) |
| 38 | { |
| 39 | u32 addr = nv_rd32(priv, 0x122120 + (i * 0x0800)); |
| 40 | u32 data = nv_rd32(priv, 0x122124 + (i * 0x0800)); |
| 41 | u32 stat = nv_rd32(priv, 0x122128 + (i * 0x0800)); |
| 42 | nv_error(priv, "HUB%d: 0x%06x 0x%08x (0x%08x)\n" , i, addr, data, stat); |
| 43 | nv_mask(priv, 0x122128 + (i * 0x0800), 0x00000200, 0x00000000); |
| 44 | } |
| 45 | |
| 46 | static void |
| 47 | nve0_ibus_intr_rop(struct nve0_ibus_priv *priv, int i) |
| 48 | { |
| 49 | u32 addr = nv_rd32(priv, 0x124120 + (i * 0x0800)); |
| 50 | u32 data = nv_rd32(priv, 0x124124 + (i * 0x0800)); |
| 51 | u32 stat = nv_rd32(priv, 0x124128 + (i * 0x0800)); |
| 52 | nv_error(priv, "ROP%d: 0x%06x 0x%08x (0x%08x)\n" , i, addr, data, stat); |
| 53 | nv_mask(priv, 0x124128 + (i * 0x0800), 0x00000200, 0x00000000); |
| 54 | } |
| 55 | |
| 56 | static void |
| 57 | nve0_ibus_intr_gpc(struct nve0_ibus_priv *priv, int i) |
| 58 | { |
| 59 | u32 addr = nv_rd32(priv, 0x128120 + (i * 0x0800)); |
| 60 | u32 data = nv_rd32(priv, 0x128124 + (i * 0x0800)); |
| 61 | u32 stat = nv_rd32(priv, 0x128128 + (i * 0x0800)); |
| 62 | nv_error(priv, "GPC%d: 0x%06x 0x%08x (0x%08x)\n" , i, addr, data, stat); |
| 63 | nv_mask(priv, 0x128128 + (i * 0x0800), 0x00000200, 0x00000000); |
| 64 | } |
| 65 | |
| 66 | static void |
| 67 | nve0_ibus_intr(struct nouveau_subdev *subdev) |
| 68 | { |
| 69 | struct nve0_ibus_priv *priv = (void *)subdev; |
| 70 | u32 intr0 = nv_rd32(priv, 0x120058); |
| 71 | u32 intr1 = nv_rd32(priv, 0x12005c); |
| 72 | u32 hubnr = nv_rd32(priv, 0x120070); |
| 73 | u32 ropnr = nv_rd32(priv, 0x120074); |
| 74 | u32 gpcnr = nv_rd32(priv, 0x120078); |
| 75 | u32 i; |
| 76 | |
| 77 | for (i = 0; (intr0 & 0x0000ff00) && i < hubnr; i++) { |
| 78 | u32 stat = 0x00000100 << i; |
| 79 | if (intr0 & stat) { |
| 80 | nve0_ibus_intr_hub(priv, i); |
| 81 | intr0 &= ~stat; |
| 82 | } |
| 83 | } |
| 84 | |
| 85 | for (i = 0; (intr0 & 0xffff0000) && i < ropnr; i++) { |
| 86 | u32 stat = 0x00010000 << i; |
| 87 | if (intr0 & stat) { |
| 88 | nve0_ibus_intr_rop(priv, i); |
| 89 | intr0 &= ~stat; |
| 90 | } |
| 91 | } |
| 92 | |
| 93 | for (i = 0; intr1 && i < gpcnr; i++) { |
| 94 | u32 stat = 0x00000001 << i; |
| 95 | if (intr1 & stat) { |
| 96 | nve0_ibus_intr_gpc(priv, i); |
| 97 | intr1 &= ~stat; |
| 98 | } |
| 99 | } |
| 100 | } |
| 101 | |
| 102 | static int |
| 103 | nve0_ibus_ctor(struct nouveau_object *parent, struct nouveau_object *engine, |
| 104 | struct nouveau_oclass *oclass, void *data, u32 size, |
| 105 | struct nouveau_object **pobject) |
| 106 | { |
| 107 | struct nve0_ibus_priv *priv; |
| 108 | int ret; |
| 109 | |
| 110 | ret = nouveau_ibus_create(parent, engine, oclass, &priv); |
| 111 | *pobject = nv_object(priv); |
| 112 | if (ret) |
| 113 | return ret; |
| 114 | |
| 115 | nv_subdev(priv)->intr = nve0_ibus_intr; |
| 116 | return 0; |
| 117 | } |
| 118 | |
| 119 | struct nouveau_oclass |
| 120 | nve0_ibus_oclass = { |
| 121 | .handle = NV_SUBDEV(IBUS, 0xe0), |
| 122 | .ofuncs = &(struct nouveau_ofuncs) { |
| 123 | .ctor = nve0_ibus_ctor, |
| 124 | .dtor = _nouveau_ibus_dtor, |
| 125 | .init = _nouveau_ibus_init, |
| 126 | .fini = _nouveau_ibus_fini, |
| 127 | }, |
| 128 | }; |
| 129 | |