LXR linux/drivers/gpu/drm/nouveau/dispnv50/corec37d.c

   1/*
   2 * Copyright 2018 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#include "core.h"
  23#include "head.h"
  24
  25#include <nouveau_bo.h>
  26
  27static void
  28corec37d_update(struct nv50_core *core, u32 *interlock, bool ntfy)
  29{
  30        u32 *push;
  31        if ((push = evo_wait(&core->chan, 9))) {
  32                if (ntfy) {
  33                        evo_mthd(push, 0x020c, 1);
  34                        evo_data(push, 0x00001000 | NV50_DISP_CORE_NTFY);
  35                }
  36
  37                evo_mthd(push, 0x0218, 2);
  38                evo_data(push, interlock[NV50_DISP_INTERLOCK_CURS]);
  39                evo_data(push, interlock[NV50_DISP_INTERLOCK_WNDW]);
  40                evo_mthd(push, 0x0200, 1);
  41                evo_data(push, 0x00000001);
  42
  43                if (ntfy) {
  44                        evo_mthd(push, 0x020c, 1);
  45                        evo_data(push, 0x00000000);
  46                }
  47                evo_kick(push, &core->chan);
  48        }
  49}
  50
  51int
  52corec37d_ntfy_wait_done(struct nouveau_bo *bo, u32 offset,
  53                        struct nvif_device *device)
  54{
  55        u32 data;
  56        s64 time = nvif_msec(device, 2000ULL,
  57                data = nouveau_bo_rd32(bo, offset / 4 + 0);
  58                if ((data & 0xc0000000) == 0x80000000)
  59                        break;
  60                usleep_range(1, 2);
  61        );
  62        return time < 0 ? time : 0;
  63}
  64
  65void
  66corec37d_ntfy_init(struct nouveau_bo *bo, u32 offset)
  67{
  68        nouveau_bo_wr32(bo, offset / 4 + 0, 0x00000000);
  69        nouveau_bo_wr32(bo, offset / 4 + 1, 0x00000000);
  70        nouveau_bo_wr32(bo, offset / 4 + 2, 0x00000000);
  71        nouveau_bo_wr32(bo, offset / 4 + 3, 0x00000000);
  72}
  73
  74void
  75corec37d_init(struct nv50_core *core)
  76{
  77        const u32 windows = 8; /*XXX*/
  78        u32 *push, i;
  79        if ((push = evo_wait(&core->chan, 2 + 6 * windows + 2))) {
  80                evo_mthd(push, 0x0208, 1);
  81                evo_data(push, core->chan.sync.handle);
  82                for (i = 0; i < windows; i++) {
  83                        evo_mthd(push, 0x1000 + (i * 0x080), 3);
  84                        evo_data(push, i >> 1);
  85                        evo_data(push, 0x00000017);
  86                        evo_data(push, 0x00000000);
  87                        evo_mthd(push, 0x1010 + (i * 0x080), 1);
  88                        evo_data(push, 0x00127fff);
  89                }
  90                evo_mthd(push, 0x0200, 1);
  91                evo_data(push, 0x00000001);
  92                evo_kick(push, &core->chan);
  93        }
  94}
  95
  96static const struct nv50_core_func
  97corec37d = {
  98        .init = corec37d_init,
  99        .ntfy_init = corec37d_ntfy_init,
 100        .ntfy_wait_done = corec37d_ntfy_wait_done,
 101        .update = corec37d_update,
 102        .head = &headc37d,
 103        .sor = &sorc37d,
 104};
 105
 106int
 107corec37d_new(struct nouveau_drm *drm, s32 oclass, struct nv50_core **pcore)
 108{
 109        return core507d_new_(&corec37d, drm, oclass, pcore);
 110}
 111