LXR linux/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
  34bool
  35curs507a_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
  46static int
  47curs507a_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
  58static int
  59curs507a_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
  71const struct nv50_wimm_func
  72curs507a = {
  73        .point = curs507a_point,
  74        .update = curs507a_update,
  75};
  76
  77static void
  78curs507a_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
  90static void
  91curs507a_release(struct nv50_wndw *wndw, struct nv50_wndw_atom *asyw,
  92                 struct nv50_head_atom *asyh)
  93{
  94        asyh->curs.visible = false;
  95}
  96
  97static int
  98curs507a_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
 122static const u32
 123curs507a_format[] = {
 124        DRM_FORMAT_ARGB8888,
 125        0
 126};
 127
 128static const struct nv50_wndw_func
 129curs507a_wndw = {
 130        .acquire = curs507a_acquire,
 131        .release = curs507a_release,
 132        .prepare = curs507a_prepare,
 133};
 134
 135int
 136curs507a_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
 166int
 167curs507a_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}
 173