1 /* 2 * Copyright 2018 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 #include "core.h" 23 #include "head.h" 24 25 #include <nvif/cl507d.h> 26 #include <nvif/push507c.h> 27 #include <nvif/timer.h> 28 29 #include "nouveau_bo.h" 30 31 void 32 core507d_update(struct nv50_core *core, u32 *interlock, bool ntfy) 33 { 34 u32 *push; 35 if ((push = evo_wait(&core->chan, 5))) { 36 if (ntfy) { 37 evo_mthd(push, 0x0084, 1); 38 evo_data(push, 0x80000000 | NV50_DISP_CORE_NTFY); 39 } 40 evo_mthd(push, 0x0080, 2); 41 evo_data(push, interlock[NV50_DISP_INTERLOCK_BASE] | 42 interlock[NV50_DISP_INTERLOCK_OVLY]); 43 evo_data(push, 0x00000000); 44 evo_kick(push, &core->chan); 45 } 46 } 47 48 int 49 core507d_ntfy_wait_done(struct nouveau_bo *bo, u32 offset, 50 struct nvif_device *device) 51 { 52 s64 time = nvif_msec(device, 2000ULL, 53 if (nouveau_bo_rd32(bo, offset / 4)) 54 break; 55 usleep_range(1, 2); 56 ); 57 return time < 0 ? time : 0; 58 } 59 60 void 61 core507d_ntfy_init(struct nouveau_bo *bo, u32 offset) 62 { 63 nouveau_bo_wr32(bo, offset / 4, 0x00000000); 64 } 65 66 int 67 core507d_caps_init(struct nouveau_drm *drm, struct nv50_disp *disp) 68 { 69 struct nvif_push *push = disp->core->chan.push; 70 int ret; 71 72 if ((ret = PUSH_WAIT(push, 2))) 73 return ret; 74 75 PUSH_NVSQ(push, NV507D, 0x008c, 0x00000000); 76 return PUSH_KICK(push); 77 } 78 79 int 80 core507d_init(struct nv50_core *core) 81 { 82 struct nvif_push *push = core->chan.push; 83 int ret; 84 85 if ((ret = PUSH_WAIT(push, 2))) 86 return ret; 87 88 PUSH_NVSQ(push, NV507D, 0x0088, core->chan.sync.handle); 89 return PUSH_KICK(push); 90 } 91 92 static const struct nv50_core_func 93 core507d = { 94 .init = core507d_init, 95 .ntfy_init = core507d_ntfy_init, 96 .caps_init = core507d_caps_init, 97 .ntfy_wait_done = core507d_ntfy_wait_done, 98 .update = core507d_update, 99 .head = &head507d, 100 .dac = &dac507d, 101 .sor = &sor507d, 102 .pior = &pior507d, 103 }; 104 105 int 106 core507d_new_(const struct nv50_core_func *func, struct nouveau_drm *drm, 107 s32 oclass, struct nv50_core **pcore) 108 { 109 struct nv50_disp_core_channel_dma_v0 args = {}; 110 struct nv50_disp *disp = nv50_disp(drm->dev); 111 struct nv50_core *core; 112 int ret; 113 114 if (!(core = *pcore = kzalloc(sizeof(*core), GFP_KERNEL))) 115 return -ENOMEM; 116 core->func = func; 117 118 ret = nv50_dmac_create(&drm->client.device, &disp->disp->object, 119 &oclass, 0, &args, sizeof(args), 120 disp->sync->offset, &core->chan); 121 if (ret) { 122 NV_ERROR(drm, "core%04x allocation failed: %d\n", oclass, ret); 123 return ret; 124 } 125 126 return 0; 127 } 128 129 int 130 core507d_new(struct nouveau_drm *drm, s32 oclass, struct nv50_core **pcore) 131 { 132 return core507d_new_(&core507d, drm, oclass, pcore); 133 } 134