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/if0014.h> 27 #include <nvif/timer.h> 28 29 #include <nvhw/class/cl507a.h> 30 31 #include <drm/drm_atomic_helper.h> 32 33 bool 34 curs507a_space(struct nv50_wndw *wndw) 35 { 36 nvif_msec(&nouveau_drm(wndw->plane.dev)->client.device, 100, 37 if (NVIF_TV32(&wndw->wimm.base.user, NV507A, FREE, COUNT, >=, 4)) 38 return true; 39 ); 40 41 WARN_ON(1); 42 return false; 43 } 44 45 static int 46 curs507a_update(struct nv50_wndw *wndw, u32 *interlock) 47 { 48 struct nvif_object *user = &wndw->wimm.base.user; 49 int ret = nvif_chan_wait(&wndw->wimm, 1); 50 if (ret == 0) { 51 NVIF_WR32(user, NV507A, UPDATE, 52 NVDEF(NV507A, UPDATE, INTERLOCK_WITH_CORE, DISABLE)); 53 } 54 return ret; 55 } 56 57 static int 58 curs507a_point(struct nv50_wndw *wndw, struct nv50_wndw_atom *asyw) 59 { 60 struct nvif_object *user = &wndw->wimm.base.user; 61 int ret = nvif_chan_wait(&wndw->wimm, 1); 62 if (ret == 0) { 63 NVIF_WR32(user, NV507A, SET_CURSOR_HOT_SPOT_POINT_OUT, 64 NVVAL(NV507A, SET_CURSOR_HOT_SPOT_POINT_OUT, X, asyw->point.x) | 65 NVVAL(NV507A, SET_CURSOR_HOT_SPOT_POINT_OUT, Y, asyw->point.y)); 66 } 67 return ret; 68 } 69 70 const struct nv50_wimm_func 71 curs507a = { 72 .point = curs507a_point, 73 .update = curs507a_update, 74 }; 75 76 static void 77 curs507a_prepare(struct nv50_wndw *wndw, struct nv50_head_atom *asyh, 78 struct nv50_wndw_atom *asyw) 79 { 80 u32 handle = nv50_disp(wndw->plane.dev)->core->chan.vram.handle; 81 u32 offset = asyw->image.offset[0]; 82 if (asyh->curs.handle != handle || asyh->curs.offset != offset) { 83 asyh->curs.handle = handle; 84 asyh->curs.offset = offset; 85 asyh->set.curs = asyh->curs.visible; 86 } 87 } 88 89 static void 90 curs507a_release(struct nv50_wndw *wndw, struct nv50_wndw_atom *asyw, 91 struct nv50_head_atom *asyh) 92 { 93 asyh->curs.visible = false; 94 } 95 96 static int 97 curs507a_acquire(struct nv50_wndw *wndw, struct nv50_wndw_atom *asyw, 98 struct nv50_head_atom *asyh) 99 { 100 struct nouveau_drm *drm = nouveau_drm(wndw->plane.dev); 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_NO_SCALING, 106 DRM_PLANE_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->state.crtc_w != asyw->state.crtc_h) { 113 NV_ATOMIC(drm, "Plane width/height must be equal for cursors\n"); 114 return -EINVAL; 115 } 116 117 if (asyw->image.w != asyw->state.crtc_w) { 118 NV_ATOMIC(drm, "Plane width must be equal to fb width for cursors (height can be larger though)\n"); 119 return -EINVAL; 120 } 121 122 if (asyw->state.src_x || asyw->state.src_y) { 123 NV_ATOMIC(drm, "Cursor planes do not support framebuffer offsets\n"); 124 return -EINVAL; 125 } 126 127 ret = head->func->curs_layout(head, asyw, asyh); 128 if (ret) 129 return ret; 130 131 return head->func->curs_format(head, asyw, asyh); 132 } 133 134 static const u32 135 curs507a_format[] = { 136 DRM_FORMAT_ARGB8888, 137 0 138 }; 139 140 static const struct nv50_wndw_func 141 curs507a_wndw = { 142 .acquire = curs507a_acquire, 143 .release = curs507a_release, 144 .prepare = curs507a_prepare, 145 }; 146 147 int 148 curs507a_new_(const struct nv50_wimm_func *func, struct nouveau_drm *drm, 149 int head, s32 oclass, u32 interlock_data, 150 struct nv50_wndw **pwndw) 151 { 152 struct nvif_disp_chan_v0 args = { 153 .id = head, 154 }; 155 struct nv50_disp *disp = nv50_disp(drm->dev); 156 struct nv50_wndw *wndw; 157 int ret; 158 159 ret = nv50_wndw_new_(&curs507a_wndw, drm->dev, DRM_PLANE_TYPE_CURSOR, 160 "curs", head, curs507a_format, BIT(head), 161 NV50_DISP_INTERLOCK_CURS, interlock_data, &wndw); 162 if (*pwndw = wndw, ret) 163 return ret; 164 165 ret = nvif_object_ctor(&disp->disp->object, "kmsCurs", 0, oclass, 166 &args, sizeof(args), &wndw->wimm.base.user); 167 if (ret) { 168 NV_ERROR(drm, "curs%04x allocation failed: %d\n", oclass, ret); 169 return ret; 170 } 171 172 nvif_object_map(&wndw->wimm.base.user, NULL, 0); 173 wndw->immd = func; 174 wndw->ctxdma.parent = NULL; 175 return 0; 176 } 177 178 int 179 curs507a_new(struct nouveau_drm *drm, int head, s32 oclass, 180 struct nv50_wndw **pwndw) 181 { 182 return curs507a_new_(&curs507a, drm, head, oclass, 183 0x00000001 << (head * 8), pwndw); 184 } 185