1 /* 2 * Copyright 2012 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 <subdev/timer.h> 25 26 bool 27 nvkm_timer_wait_eq(void *obj, u64 nsec, u32 addr, u32 mask, u32 data) 28 { 29 struct nvkm_timer *ptimer = nvkm_timer(obj); 30 u64 time0; 31 32 time0 = ptimer->read(ptimer); 33 do { 34 if (nv_iclass(obj, NV_SUBDEV_CLASS)) { 35 if ((nv_rd32(obj, addr) & mask) == data) 36 return true; 37 } else { 38 if ((nv_ro32(obj, addr) & mask) == data) 39 return true; 40 } 41 } while (ptimer->read(ptimer) - time0 < nsec); 42 43 return false; 44 } 45 46 bool 47 nvkm_timer_wait_ne(void *obj, u64 nsec, u32 addr, u32 mask, u32 data) 48 { 49 struct nvkm_timer *ptimer = nvkm_timer(obj); 50 u64 time0; 51 52 time0 = ptimer->read(ptimer); 53 do { 54 if (nv_iclass(obj, NV_SUBDEV_CLASS)) { 55 if ((nv_rd32(obj, addr) & mask) != data) 56 return true; 57 } else { 58 if ((nv_ro32(obj, addr) & mask) != data) 59 return true; 60 } 61 } while (ptimer->read(ptimer) - time0 < nsec); 62 63 return false; 64 } 65 66 bool 67 nvkm_timer_wait_cb(void *obj, u64 nsec, bool (*func)(void *), void *data) 68 { 69 struct nvkm_timer *ptimer = nvkm_timer(obj); 70 u64 time0; 71 72 time0 = ptimer->read(ptimer); 73 do { 74 if (func(data) == true) 75 return true; 76 } while (ptimer->read(ptimer) - time0 < nsec); 77 78 return false; 79 } 80 81 void 82 nvkm_timer_alarm(void *obj, u32 nsec, struct nvkm_alarm *alarm) 83 { 84 struct nvkm_timer *ptimer = nvkm_timer(obj); 85 ptimer->alarm(ptimer, nsec, alarm); 86 } 87 88 void 89 nvkm_timer_alarm_cancel(void *obj, struct nvkm_alarm *alarm) 90 { 91 struct nvkm_timer *ptimer = nvkm_timer(obj); 92 ptimer->alarm_cancel(ptimer, alarm); 93 } 94