nouveaufb.c revision 1.2.2.2
1 1.2.2.2 skrll /* $NetBSD: nouveaufb.c,v 1.2.2.2 2015/04/06 15:18:17 skrll Exp $ */ 2 1.2.2.2 skrll 3 1.2.2.2 skrll /*- 4 1.2.2.2 skrll * Copyright (c) 2015 The NetBSD Foundation, Inc. 5 1.2.2.2 skrll * All rights reserved. 6 1.2.2.2 skrll * 7 1.2.2.2 skrll * This code is derived from software contributed to The NetBSD Foundation 8 1.2.2.2 skrll * by Taylor R. Campbell. 9 1.2.2.2 skrll * 10 1.2.2.2 skrll * Redistribution and use in source and binary forms, with or without 11 1.2.2.2 skrll * modification, are permitted provided that the following conditions 12 1.2.2.2 skrll * are met: 13 1.2.2.2 skrll * 1. Redistributions of source code must retain the above copyright 14 1.2.2.2 skrll * notice, this list of conditions and the following disclaimer. 15 1.2.2.2 skrll * 2. Redistributions in binary form must reproduce the above copyright 16 1.2.2.2 skrll * notice, this list of conditions and the following disclaimer in the 17 1.2.2.2 skrll * documentation and/or other materials provided with the distribution. 18 1.2.2.2 skrll * 19 1.2.2.2 skrll * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 1.2.2.2 skrll * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 1.2.2.2 skrll * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 1.2.2.2 skrll * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 1.2.2.2 skrll * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 1.2.2.2 skrll * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 1.2.2.2 skrll * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 1.2.2.2 skrll * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 1.2.2.2 skrll * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 1.2.2.2 skrll * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 1.2.2.2 skrll * POSSIBILITY OF SUCH DAMAGE. 30 1.2.2.2 skrll */ 31 1.2.2.2 skrll 32 1.2.2.2 skrll #include <sys/cdefs.h> 33 1.2.2.2 skrll __KERNEL_RCSID(0, "$NetBSD: nouveaufb.c,v 1.2.2.2 2015/04/06 15:18:17 skrll Exp $"); 34 1.2.2.2 skrll 35 1.2.2.2 skrll #include <sys/types.h> 36 1.2.2.2 skrll #include <sys/bus.h> 37 1.2.2.2 skrll #include <sys/device.h> 38 1.2.2.2 skrll #include <sys/errno.h> 39 1.2.2.2 skrll 40 1.2.2.2 skrll #include <drm/drmP.h> 41 1.2.2.2 skrll #include <drm/drmfb.h> 42 1.2.2.2 skrll #include <drm/drmfb_pci.h> 43 1.2.2.2 skrll 44 1.2.2.2 skrll #include "nouveau_bo.h" 45 1.2.2.2 skrll #include "nouveau_drm.h" 46 1.2.2.2 skrll #include "nouveau_fbcon.h" 47 1.2.2.2 skrll #include "nouveau_pci.h" 48 1.2.2.2 skrll #include "nouveaufb.h" 49 1.2.2.2 skrll 50 1.2.2.2 skrll static int nouveaufb_match(device_t, cfdata_t, void *); 51 1.2.2.2 skrll static void nouveaufb_attach(device_t, device_t, void *); 52 1.2.2.2 skrll static int nouveaufb_detach(device_t, int); 53 1.2.2.2 skrll 54 1.2.2.2 skrll static void nouveaufb_attach_task(struct nouveau_task *); 55 1.2.2.2 skrll 56 1.2.2.2 skrll static bool nouveaufb_shutdown(device_t, int); 57 1.2.2.2 skrll static paddr_t nouveaufb_drmfb_mmapfb(struct drmfb_softc *, off_t, int); 58 1.2.2.2 skrll 59 1.2.2.2 skrll struct nouveaufb_softc { 60 1.2.2.2 skrll struct drmfb_softc sc_drmfb; /* XXX Must be first. */ 61 1.2.2.2 skrll device_t sc_dev; 62 1.2.2.2 skrll struct nouveaufb_attach_args sc_nfa; 63 1.2.2.2 skrll struct nouveau_task sc_attach_task; 64 1.2.2.2 skrll bool sc_scheduled:1; 65 1.2.2.2 skrll bool sc_attached:1; 66 1.2.2.2 skrll }; 67 1.2.2.2 skrll 68 1.2.2.2 skrll static const struct drmfb_params nouveaufb_drmfb_params = { 69 1.2.2.2 skrll .dp_mmapfb = nouveaufb_drmfb_mmapfb, 70 1.2.2.2 skrll .dp_mmap = drmfb_pci_mmap, 71 1.2.2.2 skrll .dp_ioctl = drmfb_pci_ioctl, 72 1.2.2.2 skrll .dp_is_vga_console = drmfb_pci_is_vga_console, 73 1.2.2.2 skrll }; 74 1.2.2.2 skrll 75 1.2.2.2 skrll CFATTACH_DECL_NEW(nouveaufb, sizeof(struct nouveaufb_softc), 76 1.2.2.2 skrll nouveaufb_match, nouveaufb_attach, nouveaufb_detach, NULL); 77 1.2.2.2 skrll 78 1.2.2.2 skrll static int 79 1.2.2.2 skrll nouveaufb_match(device_t parent, cfdata_t match, void *aux) 80 1.2.2.2 skrll { 81 1.2.2.2 skrll 82 1.2.2.2 skrll return 1; 83 1.2.2.2 skrll } 84 1.2.2.2 skrll 85 1.2.2.2 skrll static void 86 1.2.2.2 skrll nouveaufb_attach(device_t parent, device_t self, void *aux) 87 1.2.2.2 skrll { 88 1.2.2.2 skrll struct nouveaufb_softc *const sc = device_private(self); 89 1.2.2.2 skrll const struct nouveaufb_attach_args *const nfa = aux; 90 1.2.2.2 skrll int error; 91 1.2.2.2 skrll 92 1.2.2.2 skrll sc->sc_dev = self; 93 1.2.2.2 skrll sc->sc_nfa = *nfa; 94 1.2.2.2 skrll sc->sc_scheduled = false; 95 1.2.2.2 skrll sc->sc_attached = false; 96 1.2.2.2 skrll 97 1.2.2.2 skrll aprint_naive("\n"); 98 1.2.2.2 skrll aprint_normal("\n"); 99 1.2.2.2 skrll 100 1.2.2.2 skrll nouveau_task_init(&sc->sc_attach_task, &nouveaufb_attach_task); 101 1.2.2.2 skrll error = nouveau_task_schedule(parent, &sc->sc_attach_task); 102 1.2.2.2 skrll if (error) { 103 1.2.2.2 skrll aprint_error_dev(self, "failed to schedule mode set: %d\n", 104 1.2.2.2 skrll error); 105 1.2.2.2 skrll goto fail0; 106 1.2.2.2 skrll } 107 1.2.2.2 skrll sc->sc_scheduled = true; 108 1.2.2.2 skrll 109 1.2.2.2 skrll /* Success! */ 110 1.2.2.2 skrll return; 111 1.2.2.2 skrll 112 1.2.2.2 skrll fail0: return; 113 1.2.2.2 skrll } 114 1.2.2.2 skrll 115 1.2.2.2 skrll static int 116 1.2.2.2 skrll nouveaufb_detach(device_t self, int flags) 117 1.2.2.2 skrll { 118 1.2.2.2 skrll struct nouveaufb_softc *const sc = device_private(self); 119 1.2.2.2 skrll int error; 120 1.2.2.2 skrll 121 1.2.2.2 skrll if (sc->sc_scheduled) 122 1.2.2.2 skrll return EBUSY; 123 1.2.2.2 skrll 124 1.2.2.2 skrll if (sc->sc_attached) { 125 1.2.2.2 skrll pmf_device_deregister(self); 126 1.2.2.2 skrll error = drmfb_detach(&sc->sc_drmfb, flags); 127 1.2.2.2 skrll if (error) { 128 1.2.2.2 skrll /* XXX Ugh. */ 129 1.2.2.2 skrll (void)pmf_device_register1(self, NULL, NULL, 130 1.2.2.2 skrll &nouveaufb_shutdown); 131 1.2.2.2 skrll return error; 132 1.2.2.2 skrll } 133 1.2.2.2 skrll sc->sc_attached = false; 134 1.2.2.2 skrll } 135 1.2.2.2 skrll 136 1.2.2.2 skrll return 0; 137 1.2.2.2 skrll } 138 1.2.2.2 skrll 139 1.2.2.2 skrll static void 140 1.2.2.2 skrll nouveaufb_attach_task(struct nouveau_task *task) 141 1.2.2.2 skrll { 142 1.2.2.2 skrll struct nouveaufb_softc *const sc = container_of(task, 143 1.2.2.2 skrll struct nouveaufb_softc, sc_attach_task); 144 1.2.2.2 skrll const struct nouveaufb_attach_args *const nfa = &sc->sc_nfa; 145 1.2.2.2 skrll const struct drmfb_attach_args da = { 146 1.2.2.2 skrll .da_dev = sc->sc_dev, 147 1.2.2.2 skrll .da_fb_helper = nfa->nfa_fb_helper, 148 1.2.2.2 skrll .da_fb_sizes = &nfa->nfa_fb_sizes, 149 1.2.2.2 skrll .da_fb_vaddr = __UNVOLATILE(nfa->nfa_fb_ptr), 150 1.2.2.2 skrll .da_params = &nouveaufb_drmfb_params, 151 1.2.2.2 skrll }; 152 1.2.2.2 skrll int error; 153 1.2.2.2 skrll 154 1.2.2.2 skrll error = drmfb_attach(&sc->sc_drmfb, &da); 155 1.2.2.2 skrll if (error) { 156 1.2.2.2 skrll aprint_error_dev(sc->sc_dev, "failed to attach drmfb: %d\n", 157 1.2.2.2 skrll error); 158 1.2.2.2 skrll return; 159 1.2.2.2 skrll } 160 1.2.2.2 skrll 161 1.2.2.2 skrll if (!pmf_device_register1(sc->sc_dev, NULL, NULL, &nouveaufb_shutdown)) 162 1.2.2.2 skrll aprint_error_dev(sc->sc_dev, 163 1.2.2.2 skrll "failed to register shutdown handler\n"); 164 1.2.2.2 skrll 165 1.2.2.2 skrll sc->sc_attached = true; 166 1.2.2.2 skrll } 167 1.2.2.2 skrll 168 1.2.2.2 skrll static bool 169 1.2.2.2 skrll nouveaufb_shutdown(device_t self, int flags) 170 1.2.2.2 skrll { 171 1.2.2.2 skrll struct nouveaufb_softc *const sc = device_private(self); 172 1.2.2.2 skrll 173 1.2.2.2 skrll return drmfb_shutdown(&sc->sc_drmfb, flags); 174 1.2.2.2 skrll } 175 1.2.2.2 skrll 176 1.2.2.2 skrll static paddr_t 177 1.2.2.2 skrll nouveaufb_drmfb_mmapfb(struct drmfb_softc *drmfb, off_t offset, int prot) 178 1.2.2.2 skrll { 179 1.2.2.2 skrll struct nouveaufb_softc *const sc = container_of(drmfb, 180 1.2.2.2 skrll struct nouveaufb_softc, sc_drmfb); 181 1.2.2.2 skrll struct drm_fb_helper *const helper = sc->sc_nfa.nfa_fb_helper; 182 1.2.2.2 skrll struct nouveau_fbdev *const fbdev = container_of(helper, 183 1.2.2.2 skrll struct nouveau_fbdev, helper); 184 1.2.2.2 skrll struct nouveau_bo *const nvbo = fbdev->nouveau_fb.nvbo; 185 1.2.2.2 skrll const unsigned num_pages __diagused = nvbo->bo.num_pages; 186 1.2.2.2 skrll int flags = 0; 187 1.2.2.2 skrll 188 1.2.2.2 skrll KASSERT(0 <= offset); 189 1.2.2.2 skrll KASSERT(offset < (num_pages << PAGE_SHIFT)); 190 1.2.2.2 skrll 191 1.2.2.2 skrll if (ISSET(nvbo->bo.mem.placement, TTM_PL_FLAG_WC)) 192 1.2.2.2 skrll flags |= BUS_SPACE_MAP_PREFETCHABLE; 193 1.2.2.2 skrll 194 1.2.2.2 skrll return bus_space_mmap(nvbo->bo.bdev->memt, nvbo->bo.mem.bus.base, 195 1.2.2.2 skrll nvbo->bo.mem.bus.offset + offset, prot, flags); 196 1.2.2.2 skrll } 197
Indexes created Thu Oct 23 22:10:10 GMT 2025