1/* $NetBSD: nouveau_nvkm_engine_disp_headnv50.c,v 1.2 2021/12/18 23:45:35 riastradh Exp $ */ 2 3/* 4 * Copyright 2017 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 <bskeggs@redhat.com> 25 */ 26#include <sys/cdefs.h> 27__KERNEL_RCSID(0, "$NetBSD: nouveau_nvkm_engine_disp_headnv50.c,v 1.2 2021/12/18 23:45:35 riastradh Exp $"); 28 29#include "head.h" 30 31static void 32nv50_head_vblank_put(struct nvkm_head *head) 33{ 34 struct nvkm_device *device = head->disp->engine.subdev.device; 35 nvkm_mask(device, 0x61002c, (4 << head->id), 0); 36} 37 38static void 39nv50_head_vblank_get(struct nvkm_head *head) 40{ 41 struct nvkm_device *device = head->disp->engine.subdev.device; 42 nvkm_mask(device, 0x61002c, (4 << head->id), (4 << head->id)); 43} 44 45static void 46nv50_head_rgclk(struct nvkm_head *head, int div) 47{ 48 struct nvkm_device *device = head->disp->engine.subdev.device; 49 nvkm_mask(device, 0x614200 + (head->id * 0x800), 0x0000000f, div); 50} 51 52void 53nv50_head_rgpos(struct nvkm_head *head, u16 *hline, u16 *vline) 54{ 55 struct nvkm_device *device = head->disp->engine.subdev.device; 56 const u32 hoff = head->id * 0x800; 57 /* vline read locks hline. */ 58 *vline = nvkm_rd32(device, 0x616340 + hoff) & 0x0000ffff; 59 *hline = nvkm_rd32(device, 0x616344 + hoff) & 0x0000ffff; 60} 61 62static void 63nv50_head_state(struct nvkm_head *head, struct nvkm_head_state *state) 64{ 65 struct nvkm_device *device = head->disp->engine.subdev.device; 66 const u32 hoff = head->id * 0x540 + (state == &head->arm) * 4; 67 u32 data; 68 69 data = nvkm_rd32(device, 0x610ae8 + hoff); 70 state->vblanke = (data & 0xffff0000) >> 16; 71 state->hblanke = (data & 0x0000ffff); 72 data = nvkm_rd32(device, 0x610af0 + hoff); 73 state->vblanks = (data & 0xffff0000) >> 16; 74 state->hblanks = (data & 0x0000ffff); 75 data = nvkm_rd32(device, 0x610af8 + hoff); 76 state->vtotal = (data & 0xffff0000) >> 16; 77 state->htotal = (data & 0x0000ffff); 78 data = nvkm_rd32(device, 0x610b00 + hoff); 79 state->vsynce = (data & 0xffff0000) >> 16; 80 state->hsynce = (data & 0x0000ffff); 81 state->hz = (nvkm_rd32(device, 0x610ad0 + hoff) & 0x003fffff) * 1000; 82} 83 84static const struct nvkm_head_func 85nv50_head = { 86 .state = nv50_head_state, 87 .rgpos = nv50_head_rgpos, 88 .rgclk = nv50_head_rgclk, 89 .vblank_get = nv50_head_vblank_get, 90 .vblank_put = nv50_head_vblank_put, 91}; 92 93int 94nv50_head_new(struct nvkm_disp *disp, int id) 95{ 96 return nvkm_head_new_(&nv50_head, disp, id); 97} 98 99int 100nv50_head_cnt(struct nvkm_disp *disp, unsigned long *pmask) 101{ 102 *pmask = 3; 103 return 2; 104} 105