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
  28 #include <drm/drm_atomic_helper.h>
  29 #include <drm/drm_plane_helper.h>
  30
  31 static void
  32 curs507a_update(struct nv50_wndw *wndw, u32 *interlock)
  33 {
  34         nvif_wr32(&wndw->wimm.base.user, 0x0080, 0x00000000);
  35 }
  36
  37 static void
  38 curs507a_point(struct nv50_wndw *wndw, struct nv50_wndw_atom *asyw)
  39 {
  40         nvif_wr32(&wndw->wimm.base.user, 0x0084, asyw->point.y << 16 |
  41                                                  asyw->point.x);
  42 }
  43
  44 const struct nv50_wimm_func
  45 curs507a = {
  46         .point = curs507a_point,
  47         .update = curs507a_update,
  48 };
  49
  50 static void
  51 curs507a_prepare(struct nv50_wndw *wndw, struct nv50_head_atom *asyh,
  52                  struct nv50_wndw_atom *asyw)
  53 {
  54         u32 handle = nv50_disp(wndw->plane.dev)->core->chan.vram.handle;
  55         u32 offset = asyw->image.offset[0];
  56         if (asyh->curs.handle != handle || asyh->curs.offset != offset) {
  57                 asyh->curs.handle = handle;
  58                 asyh->curs.offset = offset;
  59                 asyh->set.curs = asyh->curs.visible;
  60         }
  61 }
  62
  63 static void
  64 curs507a_release(struct nv50_wndw *wndw, struct nv50_wndw_atom *asyw,
  65                  struct nv50_head_atom *asyh)
  66 {
  67         asyh->curs.visible = false;
  68 }
  69
  70 static int
  71 curs507a_acquire(struct nv50_wndw *wndw, struct nv50_wndw_atom *asyw,
  72                  struct nv50_head_atom *asyh)
  73 {
  74         struct nv50_head *head = nv50_head(asyw->state.crtc);
  75         int ret;
  76
  77         ret = drm_atomic_helper_check_plane_state(&asyw->state, &asyh->state,
  78                                                   DRM_PLANE_HELPER_NO_SCALING,
  79                                                   DRM_PLANE_HELPER_NO_SCALING,
  80                                                   true, true);
  81         asyh->curs.visible = asyw->state.visible;
  82         if (ret || !asyh->curs.visible)
  83                 return ret;
  84
  85         if (asyw->image.w != asyw->image.h)
  86                 return -EINVAL;
  87
  88         ret = head->func->curs_layout(head, asyw, asyh);
  89         if (ret)
  90                 return ret;
  91
  92         return head->func->curs_format(head, asyw, asyh);
  93 }
  94
  95 static const u32
  96 curs507a_format[] = {
  97         DRM_FORMAT_ARGB8888,
  98         0
  99 };
 100
 101 static const struct nv50_wndw_func
 102 curs507a_wndw = {
 103         .acquire = curs507a_acquire,
 104         .release = curs507a_release,
 105         .prepare = curs507a_prepare,
 106 };
 107
 108 int
 109 curs507a_new_(const struct nv50_wimm_func *func, struct nouveau_drm *drm,
 110               int head, s32 oclass, u32 interlock_data,
 111               struct nv50_wndw **pwndw)
 112 {
 113         struct nv50_disp_cursor_v0 args = {
 114                 .head = head,
 115         };
 116         struct nv50_disp *disp = nv50_disp(drm->dev);
 117         struct nv50_wndw *wndw;
 118         int ret;
 119
 120         ret = nv50_wndw_new_(&curs507a_wndw, drm->dev, DRM_PLANE_TYPE_CURSOR,
 121                              "curs", head, curs507a_format, BIT(head),
 122                              NV50_DISP_INTERLOCK_CURS, interlock_data, &wndw);
 123         if (*pwndw = wndw, ret)
 124                 return ret;
 125
 126         ret = nvif_object_init(&disp->disp->object, 0, oclass, &args,
 127                                sizeof(args), &wndw->wimm.base.user);
 128         if (ret) {
 129                 NV_ERROR(drm, "curs%04x allocation failed: %d\n", oclass, ret);
 130                 return ret;
 131         }
 132
 133         nvif_object_map(&wndw->wimm.base.user, NULL, 0);
 134         wndw->immd = func;
 135         wndw->ctxdma.parent = NULL;
 136         return 0;
 137 }
 138
 139 int
 140 curs507a_new(struct nouveau_drm *drm, int head, s32 oclass,
 141              struct nv50_wndw **pwndw)
 142 {
 143         return curs507a_new_(&curs507a, drm, head, oclass,
 144                              0x00000001 << (head * 8), pwndw);
 145 }