1 /* 2 * Copyright 2013 Red Hat Inc. 3 * 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: 10 * 11 * The above copyright notice and this permission notice shall be included in 12 * all copies or substantial portions of the Software. 13 * 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. 21 * 22 * Authors: Ben Skeggs 23 */ 24 #include "nv40.h" 25 26 static void 27 nv40_perfctr_init(struct nvkm_pm *pm, struct nvkm_perfdom *dom, 28 struct nvkm_perfctr *ctr) 29 { 30 struct nvkm_device *device = pm->engine.subdev.device; 31 u32 log = ctr->logic_op; 32 u32 src = 0x00000000; 33 int i; 34 35 for (i = 0; i < 4; i++) 36 src |= ctr->signal[i] << (i * 8); 37 38 nvkm_wr32(device, 0x00a7c0 + dom->addr, 0x00000001 | (dom->mode << 4)); 39 nvkm_wr32(device, 0x00a400 + dom->addr + (ctr->slot * 0x40), src); 40 nvkm_wr32(device, 0x00a420 + dom->addr + (ctr->slot * 0x40), log); 41 } 42 43 static void 44 nv40_perfctr_read(struct nvkm_pm *pm, struct nvkm_perfdom *dom, 45 struct nvkm_perfctr *ctr) 46 { 47 struct nvkm_device *device = pm->engine.subdev.device; 48 49 switch (ctr->slot) { 50 case 0: ctr->ctr = nvkm_rd32(device, 0x00a700 + dom->addr); break; 51 case 1: ctr->ctr = nvkm_rd32(device, 0x00a6c0 + dom->addr); break; 52 case 2: ctr->ctr = nvkm_rd32(device, 0x00a680 + dom->addr); break; 53 case 3: ctr->ctr = nvkm_rd32(device, 0x00a740 + dom->addr); break; 54 } 55 dom->clk = nvkm_rd32(device, 0x00a600 + dom->addr); 56 } 57 58 static void 59 nv40_perfctr_next(struct nvkm_pm *pm, struct nvkm_perfdom *dom) 60 { 61 struct nvkm_device *device = pm->engine.subdev.device; 62 if (pm->sequence != pm->sequence) { 63 nvkm_wr32(device, 0x400084, 0x00000020); 64 pm->sequence = pm->sequence; 65 } 66 } 67 68 const struct nvkm_funcdom 69 nv40_perfctr_func = { 70 .init = nv40_perfctr_init, 71 .read = nv40_perfctr_read, 72 .next = nv40_perfctr_next, 73 }; 74 75 static const struct nvkm_pm_func 76 nv40_pm_ = { 77 }; 78 79 int 80 nv40_pm_new_(const struct nvkm_specdom *doms, struct nvkm_device *device, 81 int index, struct nvkm_pm **ppm) 82 { 83 struct nv40_pm *pm; 84 int ret; 85 86 if (!(pm = kzalloc(sizeof(*pm), GFP_KERNEL))) 87 return -ENOMEM; 88 *ppm = &pm->base; 89 90 ret = nvkm_pm_ctor(&nv40_pm_, device, index, &pm->base); 91 if (ret) 92 return ret; 93 94 return nvkm_perfdom_new(&pm->base, "pc", 0, 0, 0, 4, doms); 95 } 96 97 static const struct nvkm_specdom 98 nv40_pm[] = { 99 { 0x20, (const struct nvkm_specsig[]) { 100 {} 101 }, &nv40_perfctr_func }, 102 { 0x20, (const struct nvkm_specsig[]) { 103 {} 104 }, &nv40_perfctr_func }, 105 { 0x20, (const struct nvkm_specsig[]) { 106 {} 107 }, &nv40_perfctr_func }, 108 { 0x20, (const struct nvkm_specsig[]) { 109 {} 110 }, &nv40_perfctr_func }, 111 { 0x20, (const struct nvkm_specsig[]) { 112 {} 113 }, &nv40_perfctr_func }, 114 {} 115 }; 116 117 int 118 nv40_pm_new(struct nvkm_device *device, int index, struct nvkm_pm **ppm) 119 { 120 return nv40_pm_new_(nv40_pm, device, index, ppm); 121 } 122