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1/*2 * Copyright 2015 Red Hat Inc.3 *4 * Permission is hereby granted, free of charge, to any person obtaining a5 * copy of this software and associated documentation files (the "Software"),6 * to deal in the Software without restriction, including without limitation7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,8 * and/or sell copies of the Software, and to permit persons to whom the9 * Software is furnished to do so, subject to the following conditions:10 *11 * The above copyright notice and this permission notice shall be included in12 * all copies or substantial portions of the Software.13 *14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR18 * 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 OR20 * OTHER DEALINGS IN THE SOFTWARE.21 *22 * Authors: Ben Skeggs <bskeggs@redhat.com>23 */24#include "nv50.h"25 26#include <subdev/timer.h>27 28void29g84_bar_flush(struct nvkm_bar *bar)30{31 struct nvkm_device *device = bar->subdev.device;32 unsigned long flags;33 spin_lock_irqsave(&bar->lock, flags);34 nvkm_wr32(device, 0x070000, 0x00000001);35 nvkm_msec(device, 2000,36 if (!(nvkm_rd32(device, 0x070000) & 0x00000002))37 break;38 );39 spin_unlock_irqrestore(&bar->lock, flags);40}41 42static const struct nvkm_bar_func43g84_bar_func = {44 .dtor = nv50_bar_dtor,45 .oneinit = nv50_bar_oneinit,46 .init = nv50_bar_init,47 .bar1.init = nv50_bar_bar1_init,48 .bar1.fini = nv50_bar_bar1_fini,49 .bar1.wait = nv50_bar_bar1_wait,50 .bar1.vmm = nv50_bar_bar1_vmm,51 .bar2.init = nv50_bar_bar2_init,52 .bar2.fini = nv50_bar_bar2_fini,53 .bar2.wait = nv50_bar_bar1_wait,54 .bar2.vmm = nv50_bar_bar2_vmm,55 .flush = g84_bar_flush,56};57 58int59g84_bar_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,60 struct nvkm_bar **pbar)61{62 return nv50_bar_new_(&g84_bar_func, device, type, inst, 0x200, pbar);63}64