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 nouveau_drm *drm = nouveau_drm(wndw->plane.dev); 102 struct nv50_head *head = nv50_head(asyw->state.crtc); 103 int ret; 104 105 ret = drm_atomic_helper_check_plane_state(&asyw->state, &asyh->state, 106 DRM_PLANE_HELPER_NO_SCALING, 107 DRM_PLANE_HELPER_NO_SCALING, 108 true, true); 109 asyh->curs.visible = asyw->state.visible; 110 if (ret || !asyh->curs.visible) 111 return ret; 112 113 if (asyw->state.crtc_w != asyw->state.crtc_h) { 114 NV_ATOMIC(drm, "Plane width/height must be equal for cursors\n"); 115 return -EINVAL; 116 } 117 118 if (asyw->image.w != asyw->state.crtc_w) { 119 NV_ATOMIC(drm, "Plane width must be equal to fb width for cursors (height can be larger though)\n"); 120 return -EINVAL; 121 } 122 123 if (asyw->state.src_x || asyw->state.src_y) { 124 NV_ATOMIC(drm, "Cursor planes do not support framebuffer offsets\n"); 125 return -EINVAL; 126 } 127 128 ret = head->func->curs_layout(head, asyw, asyh); 129 if (ret) 130 return ret; 131 132 return head->func->curs_format(head, asyw, asyh); 133 } 134 135 static const u32 136 curs507a_format[] = { 137 DRM_FORMAT_ARGB8888, 138 0 139 }; 140 141 static const struct nv50_wndw_func 142 curs507a_wndw = { 143 .acquire = curs507a_acquire, 144 .release = curs507a_release, 145 .prepare = curs507a_prepare, 146 }; 147 148 int 149 curs507a_new_(const struct nv50_wimm_func *func, struct nouveau_drm *drm, 150 int head, s32 oclass, u32 interlock_data, 151 struct nv50_wndw **pwndw) 152 { 153 struct nv50_disp_cursor_v0 args = { 154 .head = head, 155 }; 156 struct nv50_disp *disp = nv50_disp(drm->dev); 157 struct nv50_wndw *wndw; 158 int ret; 159 160 ret = nv50_wndw_new_(&curs507a_wndw, drm->dev, DRM_PLANE_TYPE_CURSOR, 161 "curs", head, curs507a_format, BIT(head), 162 NV50_DISP_INTERLOCK_CURS, interlock_data, &wndw); 163 if (*pwndw = wndw, ret) 164 return ret; 165 166 ret = nvif_object_ctor(&disp->disp->object, "kmsCurs", 0, oclass, 167 &args, sizeof(args), &wndw->wimm.base.user); 168 if (ret) { 169 NV_ERROR(drm, "curs%04x allocation failed: %d\n", oclass, ret); 170 return ret; 171 } 172 173 nvif_object_map(&wndw->wimm.base.user, NULL, 0); 174 wndw->immd = func; 175 wndw->ctxdma.parent = NULL; 176 return 0; 177 } 178 179 int 180 curs507a_new(struct nouveau_drm *drm, int head, s32 oclass, 181 struct nv50_wndw **pwndw) 182 { 183 return curs507a_new_(&curs507a, drm, head, oclass, 184 0x00000001 << (head * 8), pwndw); 185 } 186