1/* $NetBSD: nouveau_dispnv50_curs507a.c,v 1.2 2021/12/18 23:45:32 riastradh Exp $ */ 2 3/* 4 * Copyright 2018 Red Hat Inc. 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a 7 * copy of this software and associated documentation files (the "Software"), 8 * to deal in the Software without restriction, including without limitation 9 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 10 * and/or sell copies of the Software, and to permit persons to whom the 11 * Software is furnished to do so, subject to the following conditions: 12 * 13 * The above copyright notice and this permission notice shall be included in 14 * all copies or substantial portions of the Software. 15 * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 19 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 22 * OTHER DEALINGS IN THE SOFTWARE. 23 */ 24#include <sys/cdefs.h> 25__KERNEL_RCSID(0, "$NetBSD: nouveau_dispnv50_curs507a.c,v 1.2 2021/12/18 23:45:32 riastradh Exp $"); 26 27#include "curs.h" 28#include "core.h" 29#include "head.h" 30 31#include <nvif/cl507a.h> 32 33#include <drm/drm_atomic_helper.h> 34#include <drm/drm_plane_helper.h> 35 36static void 37curs507a_update(struct nv50_wndw *wndw, u32 *interlock) 38{ 39 nvif_wr32(&wndw->wimm.base.user, 0x0080, 0x00000000); 40} 41 42static void 43curs507a_point(struct nv50_wndw *wndw, struct nv50_wndw_atom *asyw) 44{ 45 nvif_wr32(&wndw->wimm.base.user, 0x0084, asyw->point.y << 16 | 46 asyw->point.x); 47} 48 49const struct nv50_wimm_func 50curs507a = { 51 .point = curs507a_point, 52 .update = curs507a_update, 53}; 54 55static void 56curs507a_prepare(struct nv50_wndw *wndw, struct nv50_head_atom *asyh, 57 struct nv50_wndw_atom *asyw) 58{ 59 u32 handle = nv50_disp(wndw->plane.dev)->core->chan.vram.handle; 60 u32 offset = asyw->image.offset[0]; 61 if (asyh->curs.handle != handle || asyh->curs.offset != offset) { 62 asyh->curs.handle = handle; 63 asyh->curs.offset = offset; 64 asyh->set.curs = asyh->curs.visible; 65 } 66} 67 68static void 69curs507a_release(struct nv50_wndw *wndw, struct nv50_wndw_atom *asyw, 70 struct nv50_head_atom *asyh) 71{ 72 asyh->curs.visible = false; 73} 74 75static int 76curs507a_acquire(struct nv50_wndw *wndw, struct nv50_wndw_atom *asyw, 77 struct nv50_head_atom *asyh) 78{ 79 struct nv50_head *head = nv50_head(asyw->state.crtc); 80 int ret; 81 82 ret = drm_atomic_helper_check_plane_state(&asyw->state, &asyh->state, 83 DRM_PLANE_HELPER_NO_SCALING, 84 DRM_PLANE_HELPER_NO_SCALING, 85 true, true); 86 asyh->curs.visible = asyw->state.visible; 87 if (ret || !asyh->curs.visible) 88 return ret; 89 90 if (asyw->image.w != asyw->image.h) 91 return -EINVAL; 92 93 ret = head->func->curs_layout(head, asyw, asyh); 94 if (ret) 95 return ret; 96 97 return head->func->curs_format(head, asyw, asyh); 98} 99 100static const u32 101curs507a_format[] = { 102 DRM_FORMAT_ARGB8888, 103 0 104}; 105 106static const struct nv50_wndw_func 107curs507a_wndw = { 108 .acquire = curs507a_acquire, 109 .release = curs507a_release, 110 .prepare = curs507a_prepare, 111}; 112 113int 114curs507a_new_(const struct nv50_wimm_func *func, struct nouveau_drm *drm, 115 int head, s32 oclass, u32 interlock_data, 116 struct nv50_wndw **pwndw) 117{ 118 struct nv50_disp_cursor_v0 args = { 119 .head = head, 120 }; 121 struct nv50_disp *disp = nv50_disp(drm->dev); 122 struct nv50_wndw *wndw; 123 int ret; 124 125 ret = nv50_wndw_new_(&curs507a_wndw, drm->dev, DRM_PLANE_TYPE_CURSOR, 126 "curs", head, curs507a_format, BIT(head), 127 NV50_DISP_INTERLOCK_CURS, interlock_data, &wndw); 128 if (*pwndw = wndw, ret) 129 return ret; 130 131 ret = nvif_object_init(&disp->disp->object, 0, oclass, &args, 132 sizeof(args), &wndw->wimm.base.user); 133 if (ret) { 134 NV_ERROR(drm, "curs%04x allocation failed: %d\n", oclass, ret); 135 return ret; 136 } 137 138 nvif_object_map(&wndw->wimm.base.user, NULL, 0); 139 wndw->immd = func; 140 wndw->ctxdma.parent = NULL; 141 return 0; 142} 143 144int 145curs507a_new(struct nouveau_drm *drm, int head, s32 oclass, 146 struct nv50_wndw **pwndw) 147{ 148 return curs507a_new_(&curs507a, drm, head, oclass, 149 0x00000001 << (head * 8), pwndw); 150} 151