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 } 146