drivers/gpu/drm/nouveau/nvkm/engine/disp/headgf119.c

   1 /*
   2  * Copyright 2017 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 <bskeggs@redhat.com>
  23  */
  24 #include "head.h"
  25
  26 static void
  27 gf119_head_vblank_put(struct nvkm_head *head)
  28 {
  29         struct nvkm_device *device = head->disp->engine.subdev.device;
  30         const u32 hoff = head->id * 0x800;
  31         nvkm_mask(device, 0x6100c0 + hoff, 0x00000001, 0x00000000);
  32 }
  33
  34 static void
  35 gf119_head_vblank_get(struct nvkm_head *head)
  36 {
  37         struct nvkm_device *device = head->disp->engine.subdev.device;
  38         const u32 hoff = head->id * 0x800;
  39         nvkm_mask(device, 0x6100c0 + hoff, 0x00000001, 0x00000001);
  40 }
  41
  42 static void
  43 gf119_head_rgclk(struct nvkm_head *head, int div)
  44 {
  45         struct nvkm_device *device = head->disp->engine.subdev.device;
  46         nvkm_mask(device, 0x612200 + (head->id * 0x800), 0x0000000f, div);
  47 }
  48
  49 static void
  50 gf119_head_state(struct nvkm_head *head, struct nvkm_head_state *state)
  51 {
  52         struct nvkm_device *device = head->disp->engine.subdev.device;
  53         const u32 hoff = (state == &head->asy) * 0x20000 + head->id * 0x300;
  54         u32 data;
  55
  56         data = nvkm_rd32(device, 0x640414 + hoff);
  57         state->vtotal = (data & 0xffff0000) >> 16;
  58         state->htotal = (data & 0x0000ffff);
  59         data = nvkm_rd32(device, 0x640418 + hoff);
  60         state->vsynce = (data & 0xffff0000) >> 16;
  61         state->hsynce = (data & 0x0000ffff);
  62         data = nvkm_rd32(device, 0x64041c + hoff);
  63         state->vblanke = (data & 0xffff0000) >> 16;
  64         state->hblanke = (data & 0x0000ffff);
  65         data = nvkm_rd32(device, 0x640420 + hoff);
  66         state->vblanks = (data & 0xffff0000) >> 16;
  67         state->hblanks = (data & 0x0000ffff);
  68         state->hz = nvkm_rd32(device, 0x640450 + hoff);
  69
  70         data = nvkm_rd32(device, 0x640404 + hoff);
  71         switch ((data & 0x000003c0) >> 6) {
  72         case 6: state->or.depth = 30; break;
  73         case 5: state->or.depth = 24; break;
  74         case 2: state->or.depth = 18; break;
  75         case 0: state->or.depth = 18; break; /*XXX: "default" */
  76         default:
  77                 state->or.depth = 18;
  78                 WARN_ON(1);
  79                 break;
  80         }
  81 }
  82
  83 static const struct nvkm_head_func
  84 gf119_head = {
  85         .state = gf119_head_state,
  86         .rgpos = nv50_head_rgpos,
  87         .rgclk = gf119_head_rgclk,
  88         .vblank_get = gf119_head_vblank_get,
  89         .vblank_put = gf119_head_vblank_put,
  90 };
  91
  92 int
  93 gf119_head_new(struct nvkm_disp *disp, int id)
  94 {
  95         struct nvkm_device *device = disp->engine.subdev.device;
  96         if (!(nvkm_rd32(device, 0x612004) & (0x00000001 << id)))
  97                 return 0;
  98         return nvkm_head_new_(&gf119_head, disp, id);
  99 }