1/* $NetBSD: nouveau_nvc0_fence.c,v 1.4 2021/12/18 23:45:32 riastradh Exp $ */ 2 3/* 4 * Copyright 2012 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 25 */ 26 27#include <sys/cdefs.h> 28__KERNEL_RCSID(0, "$NetBSD: nouveau_nvc0_fence.c,v 1.4 2021/12/18 23:45:32 riastradh Exp $"); 29 30#include "nouveau_drv.h" 31#include "nouveau_dma.h" 32#include "nouveau_fence.h" 33 34#include "nv50_display.h" 35 36static int 37nvc0_fence_emit32(struct nouveau_channel *chan, u64 virtual, u32 sequence) 38{ 39 int ret = RING_SPACE(chan, 6); 40 if (ret == 0) { 41 BEGIN_NVC0(chan, 0, NV84_SUBCHAN_SEMAPHORE_ADDRESS_HIGH, 5); 42 OUT_RING (chan, upper_32_bits(virtual)); 43 OUT_RING (chan, lower_32_bits(virtual)); 44 OUT_RING (chan, sequence); 45 OUT_RING (chan, NV84_SUBCHAN_SEMAPHORE_TRIGGER_WRITE_LONG); 46 OUT_RING (chan, 0x00000000); 47 FIRE_RING (chan); 48 } 49 return ret; 50} 51 52static int 53nvc0_fence_sync32(struct nouveau_channel *chan, u64 virtual, u32 sequence) 54{ 55 int ret = RING_SPACE(chan, 5); 56 if (ret == 0) { 57 BEGIN_NVC0(chan, 0, NV84_SUBCHAN_SEMAPHORE_ADDRESS_HIGH, 4); 58 OUT_RING (chan, upper_32_bits(virtual)); 59 OUT_RING (chan, lower_32_bits(virtual)); 60 OUT_RING (chan, sequence); 61 OUT_RING (chan, NV84_SUBCHAN_SEMAPHORE_TRIGGER_ACQUIRE_GEQUAL | 62 NVC0_SUBCHAN_SEMAPHORE_TRIGGER_YIELD); 63 FIRE_RING (chan); 64 } 65 return ret; 66} 67 68static int 69nvc0_fence_context_new(struct nouveau_channel *chan) 70{ 71 int ret = nv84_fence_context_new(chan); 72 if (ret == 0) { 73 struct nv84_fence_chan *fctx = chan->fence; 74 fctx->base.emit32 = nvc0_fence_emit32; 75 fctx->base.sync32 = nvc0_fence_sync32; 76 } 77 return ret; 78} 79 80int 81nvc0_fence_create(struct nouveau_drm *drm) 82{ 83 int ret = nv84_fence_create(drm); 84 if (ret == 0) { 85 struct nv84_fence_priv *priv = drm->fence; 86 priv->base.context_new = nvc0_fence_context_new; 87 } 88 return ret; 89} 90