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 <drm/drm_atomic_helper.h> 30 #include <drm/drm_plane_helper.h> 31 32 bool 33 curs507a_space(struct nv50_wndw *wndw) 34 { 35 nvif_msec(&nouveau_drm(wndw->plane.dev)->client.device, 100, 36 if (nvif_rd32(&wndw->wimm.base.user, 0x0008) >= 4) 37 return true; 38 ); 39 WARN_ON(1); 40 return false; 41 } 42 43 static void 44 curs507a_update(struct nv50_wndw *wndw, u32 *interlock) 45 { 46 if (curs507a_space(wndw)) 47 nvif_wr32(&wndw->wimm.base.user, 0x0080, 0x00000000); 48 } 49 50 static void 51 curs507a_point(struct nv50_wndw *wndw, struct nv50_wndw_atom *asyw) 52 { 53 if (curs507a_space(wndw)) { 54 nvif_wr32(&wndw->wimm.base.user, 0x0084, asyw->point.y << 16 | 55 asyw->point.x); 56 } 57 } 58 59 const struct nv50_wimm_func 60 curs507a = { 61 .point = curs507a_point, 62 .update = curs507a_update, 63 }; 64 65 static void 66 curs507a_prepare(struct nv50_wndw *wndw, struct nv50_head_atom *asyh, 67 struct nv50_wndw_atom *asyw) 68 { 69 u32 handle = nv50_disp(wndw->plane.dev)->core->chan.vram.handle; 70 u32 offset = asyw->image.offset[0]; 71 if (asyh->curs.handle != handle || asyh->curs.offset != offset) { 72 asyh->curs.handle = handle; 73 asyh->curs.offset = offset; 74 asyh->set.curs = asyh->curs.visible; 75 } 76 } 77 78 static void 79 curs507a_release(struct nv50_wndw *wndw, struct nv50_wndw_atom *asyw, 80 struct nv50_head_atom *asyh) 81 { 82 asyh->curs.visible = false; 83 } 84 85 static int 86 curs507a_acquire(struct nv50_wndw *wndw, struct nv50_wndw_atom *asyw, 87 struct nv50_head_atom *asyh) 88 { 89 struct nv50_head *head = nv50_head(asyw->state.crtc); 90 int ret; 91 92 ret = drm_atomic_helper_check_plane_state(&asyw->state, &asyh->state, 93 DRM_PLANE_HELPER_NO_SCALING, 94 DRM_PLANE_HELPER_NO_SCALING, 95 true, true); 96 asyh->curs.visible = asyw->state.visible; 97 if (ret || !asyh->curs.visible) 98 return ret; 99 100 if (asyw->image.w != asyw->image.h) 101 return -EINVAL; 102 103 ret = head->func->curs_layout(head, asyw, asyh); 104 if (ret) 105 return ret; 106 107 return head->func->curs_format(head, asyw, asyh); 108 } 109 110 static const u32 111 curs507a_format[] = { 112 DRM_FORMAT_ARGB8888, 113 0 114 }; 115 116 static const struct nv50_wndw_func 117 curs507a_wndw = { 118 .acquire = curs507a_acquire, 119 .release = curs507a_release, 120 .prepare = curs507a_prepare, 121 }; 122 123 int 124 curs507a_new_(const struct nv50_wimm_func *func, struct nouveau_drm *drm, 125 int head, s32 oclass, u32 interlock_data, 126 struct nv50_wndw **pwndw) 127 { 128 struct nv50_disp_cursor_v0 args = { 129 .head = head, 130 }; 131 struct nv50_disp *disp = nv50_disp(drm->dev); 132 struct nv50_wndw *wndw; 133 int ret; 134 135 ret = nv50_wndw_new_(&curs507a_wndw, drm->dev, DRM_PLANE_TYPE_CURSOR, 136 "curs", head, curs507a_format, BIT(head), 137 NV50_DISP_INTERLOCK_CURS, interlock_data, &wndw); 138 if (*pwndw = wndw, ret) 139 return ret; 140 141 ret = nvif_object_init(&disp->disp->object, 0, oclass, &args, 142 sizeof(args), &wndw->wimm.base.user); 143 if (ret) { 144 NV_ERROR(drm, "curs%04x allocation failed: %d\n", oclass, ret); 145 return ret; 146 } 147 148 nvif_object_map(&wndw->wimm.base.user, NULL, 0); 149 wndw->immd = func; 150 wndw->ctxdma.parent = NULL; 151 return 0; 152 } 153 154 int 155 curs507a_new(struct nouveau_drm *drm, int head, s32 oclass, 156 struct nv50_wndw **pwndw) 157 { 158 return curs507a_new_(&curs507a, drm, head, oclass, 159 0x00000001 << (head * 8), pwndw); 160 } 161