LXR linux/drivers/gpu/drm/nouveau/nvkm/engine/disp/sorgm200.c

   1/*
   2 * Copyright 2012 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
  23 */
  24#include "ior.h"
  25
  26static void
  27gm200_sor_dp_drive(struct nvkm_ior *sor, int ln, int pc, int dc, int pe, int pu)
  28{
  29        struct nvkm_device *device = sor->disp->engine.subdev.device;
  30        const u32  loff = nv50_sor_link(sor);
  31        const u32 shift = sor->func->dp.lanes[ln] * 8;
  32        u32 data[4];
  33
  34        pu &= 0x0f;
  35
  36        data[0] = nvkm_rd32(device, 0x61c118 + loff) & ~(0x000000ff << shift);
  37        data[1] = nvkm_rd32(device, 0x61c120 + loff) & ~(0x000000ff << shift);
  38        data[2] = nvkm_rd32(device, 0x61c130 + loff);
  39        if ((data[2] & 0x00000f00) < (pu << 8) || ln == 0)
  40                data[2] = (data[2] & ~0x00000f00) | (pu << 8);
  41        nvkm_wr32(device, 0x61c118 + loff, data[0] | (dc << shift));
  42        nvkm_wr32(device, 0x61c120 + loff, data[1] | (pe << shift));
  43        nvkm_wr32(device, 0x61c130 + loff, data[2]);
  44        data[3] = nvkm_rd32(device, 0x61c13c + loff) & ~(0x000000ff << shift);
  45        nvkm_wr32(device, 0x61c13c + loff, data[3] | (pc << shift));
  46}
  47
  48static void
  49gm200_sor_route_set(struct nvkm_outp *outp, struct nvkm_ior *ior)
  50{
  51        struct nvkm_device *device = outp->disp->engine.subdev.device;
  52        const u32 moff = __ffs(outp->info.or) * 0x100;
  53        const u32  sor = ior ? ior->id + 1 : 0;
  54        u32 link = ior ? (ior->asy.link == 2) : 0;
  55
  56        if (outp->info.sorconf.link & 1) {
  57                nvkm_mask(device, 0x612308 + moff, 0x0000001f, link << 4 | sor);
  58                link++;
  59        }
  60
  61        if (outp->info.sorconf.link & 2)
  62                nvkm_mask(device, 0x612388 + moff, 0x0000001f, link << 4 | sor);
  63}
  64
  65static int
  66gm200_sor_route_get(struct nvkm_outp *outp, int *link)
  67{
  68        struct nvkm_device *device = outp->disp->engine.subdev.device;
  69        const int sublinks = outp->info.sorconf.link;
  70        int lnk[2], sor[2], m, s;
  71
  72        for (*link = 0, m = __ffs(outp->info.or) * 2, s = 0; s < 2; m++, s++) {
  73                if (sublinks & BIT(s)) {
  74                        u32 data = nvkm_rd32(device, 0x612308 + (m * 0x80));
  75                        lnk[s] = (data & 0x00000010) >> 4;
  76                        sor[s] = (data & 0x0000000f);
  77                        if (!sor[s])
  78                                return -1;
  79                        *link |= lnk[s];
  80                }
  81        }
  82
  83        if (sublinks == 3) {
  84                if (sor[0] != sor[1] || WARN_ON(lnk[0] || !lnk[1]))
  85                        return -1;
  86        }
  87
  88        return ((sublinks & 1) ? sor[0] : sor[1]) - 1;
  89}
  90
  91static const struct nvkm_ior_func
  92gm200_sor = {
  93        .route = {
  94                .get = gm200_sor_route_get,
  95                .set = gm200_sor_route_set,
  96        },
  97        .state = gf119_sor_state,
  98        .power = nv50_sor_power,
  99        .clock = gf119_sor_clock,
 100        .hdmi = {
 101                .ctrl = gk104_hdmi_ctrl,
 102        },
 103        .dp = {
 104                .lanes = { 0, 1, 2, 3 },
 105                .links = gf119_sor_dp_links,
 106                .power = g94_sor_dp_power,
 107                .pattern = gm107_sor_dp_pattern,
 108                .drive = gm200_sor_dp_drive,
 109                .vcpi = gf119_sor_dp_vcpi,
 110                .audio = gf119_sor_dp_audio,
 111                .audio_sym = gf119_sor_dp_audio_sym,
 112                .watermark = gf119_sor_dp_watermark,
 113        },
 114        .hda = {
 115                .hpd = gf119_hda_hpd,
 116                .eld = gf119_hda_eld,
 117        },
 118};
 119
 120int
 121gm200_sor_new(struct nvkm_disp *disp, int id)
 122{
 123        return gf119_sor_new_(&gm200_sor, disp, id);
 124}
 125