LXR linux/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
  26static void
  27gf119_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
  34static void
  35gf119_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
  42void
  43gf119_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
  49static void
  50gf119_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
  83static const struct nvkm_head_func
  84gf119_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
  92int
  93gf119_head_new(struct nvkm_disp *disp, int id)
  94{
  95        return nvkm_head_new_(&gf119_head, disp, id);
  96}
  97
  98int
  99gf119_head_cnt(struct nvkm_disp *disp, unsigned long *pmask)
 100{
 101        struct nvkm_device *device = disp->engine.subdev.device;
 102        *pmask = nvkm_rd32(device, 0x612004) & 0x0000000f;
 103        return nvkm_rd32(device, 0x022448);
 104}
 105