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 #include <nvif/pushc37b.h>
  28
  29 #include <nvhw/class/clc37b.h>
  30
  31 static int
  32 wimmc37b_update(struct nv50_wndw *wndw, u32 *interlock)
  33 {
  34         struct nvif_push *push = wndw->wimm.push;
  35         int ret;
  36
  37         if ((ret = PUSH_WAIT(push, 2)))
  38                 return ret;
  39
  40         PUSH_MTHD(push, NVC37B, UPDATE, 0x00000001 |
  41                   NVVAL(NVC37B, UPDATE, INTERLOCK_WITH_WINDOW,
  42                         !!(interlock[NV50_DISP_INTERLOCK_WNDW] & wndw->interlock.data)));
  43         return PUSH_KICK(push);
  44 }
  45
  46 static int
  47 wimmc37b_point(struct nv50_wndw *wndw, struct nv50_wndw_atom *asyw)
  48 {
  49         struct nvif_push *push = wndw->wimm.push;
  50         int ret;
  51
  52         if ((ret = PUSH_WAIT(push, 2)))
  53                 return ret;
  54
  55         PUSH_MTHD(push, NVC37B, SET_POINT_OUT(0),
  56                   NVVAL(NVC37B, SET_POINT_OUT, X, asyw->point.x) |
  57                   NVVAL(NVC37B, SET_POINT_OUT, Y, asyw->point.y));
  58         return 0;
  59 }
  60
  61 static const struct nv50_wimm_func
  62 wimmc37b = {
  63         .point = wimmc37b_point,
  64         .update = wimmc37b_update,
  65 };
  66
  67 static int
  68 wimmc37b_init_(const struct nv50_wimm_func *func, struct nouveau_drm *drm,
  69                s32 oclass, struct nv50_wndw *wndw)
  70 {
  71         struct nvc37b_window_imm_channel_dma_v0 args = {
  72                 .pushbuf = 0xb0007b00 | wndw->id,
  73                 .index = wndw->id,
  74         };
  75         struct nv50_disp *disp = nv50_disp(drm->dev);
  76         int ret;
  77
  78         ret = nv50_dmac_create(&drm->client.device, &disp->disp->object,
  79                                &oclass, 0, &args, sizeof(args), -1,
  80                                &wndw->wimm);
  81         if (ret) {
  82                 NV_ERROR(drm, "wimm%04x allocation failed: %d\n", oclass, ret);
  83                 return ret;
  84         }
  85
  86         wndw->interlock.wimm = wndw->interlock.data;
  87         wndw->immd = func;
  88         return 0;
  89 }
  90
  91 int
  92 wimmc37b_init(struct nouveau_drm *drm, s32 oclass, struct nv50_wndw *wndw)
  93 {
  94         return wimmc37b_init_(&wimmc37b, drm, oclass, wndw);
  95 }