1/* $NetBSD: nouveau_nvkm_subdev_bar_g84.c,v 1.3 2021/12/18 23:45:38 riastradh Exp $ */ 2 3/* 4 * Copyright 2015 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 * Authors: Ben Skeggs <bskeggs@redhat.com> 25 */ 26#include <sys/cdefs.h> 27__KERNEL_RCSID(0, "$NetBSD: nouveau_nvkm_subdev_bar_g84.c,v 1.3 2021/12/18 23:45:38 riastradh Exp $"); 28 29#include "nv50.h" 30 31#include <subdev/timer.h> 32 33void 34g84_bar_flush(struct nvkm_bar *bar) 35{ 36 struct nvkm_device *device = bar->subdev.device; 37 unsigned long flags; 38 spin_lock_irqsave(&bar->lock, flags); 39 nvkm_wr32(device, 0x070000, 0x00000001); 40 nvkm_msec(device, 2000, 41 if (!(nvkm_rd32(device, 0x070000) & 0x00000002)) 42 break; 43 ); 44 spin_unlock_irqrestore(&bar->lock, flags); 45} 46 47static const struct nvkm_bar_func 48g84_bar_func = { 49 .dtor = nv50_bar_dtor, 50 .oneinit = nv50_bar_oneinit, 51 .init = nv50_bar_init, 52 .bar1.init = nv50_bar_bar1_init, 53 .bar1.fini = nv50_bar_bar1_fini, 54 .bar1.wait = nv50_bar_bar1_wait, 55 .bar1.vmm = nv50_bar_bar1_vmm, 56 .bar2.init = nv50_bar_bar2_init, 57 .bar2.fini = nv50_bar_bar2_fini, 58 .bar2.wait = nv50_bar_bar1_wait, 59 .bar2.vmm = nv50_bar_bar2_vmm, 60 .flush = g84_bar_flush, 61}; 62 63int 64g84_bar_new(struct nvkm_device *device, int index, struct nvkm_bar **pbar) 65{ 66 return nv50_bar_new_(&g84_bar_func, device, index, 0x200, pbar); 67} 68