drivers/gpu/drm/nouveau/dispnv50/wimmc37b.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 "wimm.h"
  23 #include "atom.h"
  24 #include "wndw.h"
  25
  26 #include <nvif/clc37b.h>
  27
  28 static void
  29 wimmc37b_update(struct nv50_wndw *wndw, u32 *interlock)
  30 {
  31         u32 *push;
  32         if ((push = evo_wait(&wndw->wimm, 2))) {
  33                 evo_mthd(push, 0x0200, 1);
  34                 if (interlock[NV50_DISP_INTERLOCK_WNDW] & wndw->interlock.data)
  35                         evo_data(push, 0x00000003);
  36                 else
  37                         evo_data(push, 0x00000001);
  38                 evo_kick(push, &wndw->wimm);
  39         }
  40 }
  41
  42 static void
  43 wimmc37b_point(struct nv50_wndw *wndw, struct nv50_wndw_atom *asyw)
  44 {
  45         u32 *push;
  46         if ((push = evo_wait(&wndw->wimm, 2))) {
  47                 evo_mthd(push, 0x0208, 1);
  48                 evo_data(push, asyw->point.y << 16 | asyw->point.x);
  49                 evo_kick(push, &wndw->wimm);
  50         }
  51 }
  52
  53 static const struct nv50_wimm_func
  54 wimmc37b = {
  55         .point = wimmc37b_point,
  56         .update = wimmc37b_update,
  57 };
  58
  59 static int
  60 wimmc37b_init_(const struct nv50_wimm_func *func, struct nouveau_drm *drm,
  61                s32 oclass, struct nv50_wndw *wndw)
  62 {
  63         struct nvc37b_window_imm_channel_dma_v0 args = {
  64                 .pushbuf = 0xb0007b00 | wndw->id,
  65                 .index = wndw->id,
  66         };
  67         struct nv50_disp *disp = nv50_disp(drm->dev);
  68         int ret;
  69
  70         ret = nv50_dmac_create(&drm->client.device, &disp->disp->object,
  71                                &oclass, 0, &args, sizeof(args), 0,
  72                                &wndw->wimm);
  73         if (ret) {
  74                 NV_ERROR(drm, "wimm%04x allocation failed: %d\n", oclass, ret);
  75                 return ret;
  76         }
  77
  78         wndw->interlock.wimm = wndw->interlock.data;
  79         wndw->immd = func;
  80         return 0;
  81 }
  82
  83 int
  84 wimmc37b_init(struct nouveau_drm *drm, s32 oclass, struct nv50_wndw *wndw)
  85 {
  86         return wimmc37b_init_(&wimmc37b, drm, oclass, wndw);
  87 }