1/* $NetBSD: nouveau_nvkm_engine_disp_headgv100.c,v 1.2 2021/12/18 23:45:35 riastradh Exp $ */ 2 3/* 4 * Copyright 2018 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#include <sys/cdefs.h> 25__KERNEL_RCSID(0, "$NetBSD: nouveau_nvkm_engine_disp_headgv100.c,v 1.2 2021/12/18 23:45:35 riastradh Exp $"); 26 27#include "head.h" 28 29static void 30gv100_head_vblank_put(struct nvkm_head *head) 31{ 32 struct nvkm_device *device = head->disp->engine.subdev.device; 33 nvkm_mask(device, 0x611d80 + (head->id * 4), 0x00000004, 0x00000000); 34} 35 36static void 37gv100_head_vblank_get(struct nvkm_head *head) 38{ 39 struct nvkm_device *device = head->disp->engine.subdev.device; 40 nvkm_mask(device, 0x611d80 + (head->id * 4), 0x00000004, 0x00000004); 41} 42 43static void 44gv100_head_rgpos(struct nvkm_head *head, u16 *hline, u16 *vline) 45{ 46 struct nvkm_device *device = head->disp->engine.subdev.device; 47 const u32 hoff = head->id * 0x800; 48 /* vline read locks hline. */ 49 *vline = nvkm_rd32(device, 0x616330 + hoff) & 0x0000ffff; 50 *hline = nvkm_rd32(device, 0x616334 + hoff) & 0x0000ffff; 51} 52 53static void 54gv100_head_state(struct nvkm_head *head, struct nvkm_head_state *state) 55{ 56 struct nvkm_device *device = head->disp->engine.subdev.device; 57 const u32 hoff = (state == &head->arm) * 0x8000 + head->id * 0x400; 58 u32 data; 59 60 data = nvkm_rd32(device, 0x682064 + hoff); 61 state->vtotal = (data & 0xffff0000) >> 16; 62 state->htotal = (data & 0x0000ffff); 63 data = nvkm_rd32(device, 0x682068 + hoff); 64 state->vsynce = (data & 0xffff0000) >> 16; 65 state->hsynce = (data & 0x0000ffff); 66 data = nvkm_rd32(device, 0x68206c + hoff); 67 state->vblanke = (data & 0xffff0000) >> 16; 68 state->hblanke = (data & 0x0000ffff); 69 data = nvkm_rd32(device, 0x682070 + hoff); 70 state->vblanks = (data & 0xffff0000) >> 16; 71 state->hblanks = (data & 0x0000ffff); 72 state->hz = nvkm_rd32(device, 0x68200c + hoff); 73 74 data = nvkm_rd32(device, 0x682004 + hoff); 75 switch ((data & 0x000000f0) >> 4) { 76 case 5: state->or.depth = 30; break; 77 case 4: state->or.depth = 24; break; 78 case 1: state->or.depth = 18; break; 79 default: 80 state->or.depth = 18; 81 WARN_ON(1); 82 break; 83 } 84} 85 86static const struct nvkm_head_func 87gv100_head = { 88 .state = gv100_head_state, 89 .rgpos = gv100_head_rgpos, 90 .rgclk = gf119_head_rgclk, 91 .vblank_get = gv100_head_vblank_get, 92 .vblank_put = gv100_head_vblank_put, 93}; 94 95int 96gv100_head_new(struct nvkm_disp *disp, int id) 97{ 98 struct nvkm_device *device = disp->engine.subdev.device; 99 if (!(nvkm_rd32(device, 0x610060) & (0x00000001 << id))) 100 return 0; 101 return nvkm_head_new_(&gv100_head, disp, id); 102} 103 104int 105gv100_head_cnt(struct nvkm_disp *disp, unsigned long *pmask) 106{ 107 struct nvkm_device *device = disp->engine.subdev.device; 108 *pmask = nvkm_rd32(device, 0x610060) & 0x000000ff; 109 return nvkm_rd32(device, 0x610074) & 0x0000000f; 110} 111