drivers/gpu/drm/nouveau/dispnv50/curs507a.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 "curs.h"
  23 #include "core.h"
  24 #include "head.h"
  25
  26 #include <nvif/cl507a.h>
  27 #include <nvif/timer.h>
  28
  29 #include <nvhw/class/cl507a.h>
  30
  31 #include <drm/drm_atomic_helper.h>
  32 #include <drm/drm_plane_helper.h>
  33
  34 bool
  35 curs507a_space(struct nv50_wndw *wndw)
  36 {
  37         nvif_msec(&nouveau_drm(wndw->plane.dev)->client.device, 100,
  38                 if (NVIF_TV32(&wndw->wimm.base.user, NV507A, FREE, COUNT, >=, 4))
  39                         return true;
  40         );
  41
  42         WARN_ON(1);
  43         return false;
  44 }
  45
  46 static int
  47 curs507a_update(struct nv50_wndw *wndw, u32 *interlock)
  48 {
  49         struct nvif_object *user = &wndw->wimm.base.user;
  50         int ret = nvif_chan_wait(&wndw->wimm, 1);
  51         if (ret == 0) {
  52                 NVIF_WR32(user, NV507A, UPDATE,
  53                           NVDEF(NV507A, UPDATE, INTERLOCK_WITH_CORE, DISABLE));
  54         }
  55         return ret;
  56 }
  57
  58 static int
  59 curs507a_point(struct nv50_wndw *wndw, struct nv50_wndw_atom *asyw)
  60 {
  61         struct nvif_object *user = &wndw->wimm.base.user;
  62         int ret = nvif_chan_wait(&wndw->wimm, 1);
  63         if (ret == 0) {
  64                 NVIF_WR32(user, NV507A, SET_CURSOR_HOT_SPOT_POINT_OUT,
  65                           NVVAL(NV507A, SET_CURSOR_HOT_SPOT_POINT_OUT, X, asyw->point.x) |
  66                           NVVAL(NV507A, SET_CURSOR_HOT_SPOT_POINT_OUT, Y, asyw->point.y));
  67         }
  68         return ret;
  69 }
  70
  71 const struct nv50_wimm_func
  72 curs507a = {
  73         .point = curs507a_point,
  74         .update = curs507a_update,
  75 };
  76
  77 static void
  78 curs507a_prepare(struct nv50_wndw *wndw, struct nv50_head_atom *asyh,
  79                  struct nv50_wndw_atom *asyw)
  80 {
  81         u32 handle = nv50_disp(wndw->plane.dev)->core->chan.vram.handle;
  82         u32 offset = asyw->image.offset[0];
  83         if (asyh->curs.handle != handle || asyh->curs.offset != offset) {
  84                 asyh->curs.handle = handle;
  85                 asyh->curs.offset = offset;
  86                 asyh->set.curs = asyh->curs.visible;
  87         }
  88 }
  89
  90 static void
  91 curs507a_release(struct nv50_wndw *wndw, struct nv50_wndw_atom *asyw,
  92                  struct nv50_head_atom *asyh)
  93 {
  94         asyh->curs.visible = false;
  95 }
  96
  97 static int
  98 curs507a_acquire(struct nv50_wndw *wndw, struct nv50_wndw_atom *asyw,
  99                  struct nv50_head_atom *asyh)
 100 {
 101         struct nv50_head *head = nv50_head(asyw->state.crtc);
 102         int ret;
 103
 104         ret = drm_atomic_helper_check_plane_state(&asyw->state, &asyh->state,
 105                                                   DRM_PLANE_HELPER_NO_SCALING,
 106                                                   DRM_PLANE_HELPER_NO_SCALING,
 107                                                   true, true);
 108         asyh->curs.visible = asyw->state.visible;
 109         if (ret || !asyh->curs.visible)
 110                 return ret;
 111
 112         if (asyw->image.w != asyw->image.h)
 113                 return -EINVAL;
 114
 115         ret = head->func->curs_layout(head, asyw, asyh);
 116         if (ret)
 117                 return ret;
 118
 119         return head->func->curs_format(head, asyw, asyh);
 120 }
 121
 122 static const u32
 123 curs507a_format[] = {
 124         DRM_FORMAT_ARGB8888,
 125         0
 126 };
 127
 128 static const struct nv50_wndw_func
 129 curs507a_wndw = {
 130         .acquire = curs507a_acquire,
 131         .release = curs507a_release,
 132         .prepare = curs507a_prepare,
 133 };
 134
 135 int
 136 curs507a_new_(const struct nv50_wimm_func *func, struct nouveau_drm *drm,
 137               int head, s32 oclass, u32 interlock_data,
 138               struct nv50_wndw **pwndw)
 139 {
 140         struct nv50_disp_cursor_v0 args = {
 141                 .head = head,
 142         };
 143         struct nv50_disp *disp = nv50_disp(drm->dev);
 144         struct nv50_wndw *wndw;
 145         int ret;
 146
 147         ret = nv50_wndw_new_(&curs507a_wndw, drm->dev, DRM_PLANE_TYPE_CURSOR,
 148                              "curs", head, curs507a_format, BIT(head),
 149                              NV50_DISP_INTERLOCK_CURS, interlock_data, &wndw);
 150         if (*pwndw = wndw, ret)
 151                 return ret;
 152
 153         ret = nvif_object_ctor(&disp->disp->object, "kmsCurs", 0, oclass,
 154                                &args, sizeof(args), &wndw->wimm.base.user);
 155         if (ret) {
 156                 NV_ERROR(drm, "curs%04x allocation failed: %d\n", oclass, ret);
 157                 return ret;
 158         }
 159
 160         nvif_object_map(&wndw->wimm.base.user, NULL, 0);
 161         wndw->immd = func;
 162         wndw->ctxdma.parent = NULL;
 163         return 0;
 164 }
 165
 166 int
 167 curs507a_new(struct nouveau_drm *drm, int head, s32 oclass,
 168              struct nv50_wndw **pwndw)
 169 {
 170         return curs507a_new_(&curs507a, drm, head, oclass,
 171                              0x00000001 << (head * 8), pwndw);
 172 }