| 1 | /* $NetBSD: nouveau_nvc0_fence.c,v 1.1.1.1 2014/08/06 12:36:23 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 1.1.1.1 2014/08/06 12:36:23 riastradh Exp $" ); |
| 29 | |
| 30 | #include <core/object.h> |
| 31 | #include <core/client.h> |
| 32 | #include <core/class.h> |
| 33 | |
| 34 | #include <engine/fifo.h> |
| 35 | |
| 36 | #include "nouveau_drm.h" |
| 37 | #include "nouveau_dma.h" |
| 38 | #include "nouveau_fence.h" |
| 39 | |
| 40 | #include "nv50_display.h" |
| 41 | |
| 42 | static int |
| 43 | nvc0_fence_emit32(struct nouveau_channel *chan, u64 virtual, u32 sequence) |
| 44 | { |
| 45 | int ret = RING_SPACE(chan, 6); |
| 46 | if (ret == 0) { |
| 47 | BEGIN_NVC0(chan, 0, NV84_SUBCHAN_SEMAPHORE_ADDRESS_HIGH, 5); |
| 48 | OUT_RING (chan, upper_32_bits(virtual)); |
| 49 | OUT_RING (chan, lower_32_bits(virtual)); |
| 50 | OUT_RING (chan, sequence); |
| 51 | OUT_RING (chan, NV84_SUBCHAN_SEMAPHORE_TRIGGER_WRITE_LONG); |
| 52 | OUT_RING (chan, 0x00000000); |
| 53 | FIRE_RING (chan); |
| 54 | } |
| 55 | return ret; |
| 56 | } |
| 57 | |
| 58 | static int |
| 59 | nvc0_fence_sync32(struct nouveau_channel *chan, u64 virtual, u32 sequence) |
| 60 | { |
| 61 | int ret = RING_SPACE(chan, 5); |
| 62 | if (ret == 0) { |
| 63 | BEGIN_NVC0(chan, 0, NV84_SUBCHAN_SEMAPHORE_ADDRESS_HIGH, 4); |
| 64 | OUT_RING (chan, upper_32_bits(virtual)); |
| 65 | OUT_RING (chan, lower_32_bits(virtual)); |
| 66 | OUT_RING (chan, sequence); |
| 67 | OUT_RING (chan, NV84_SUBCHAN_SEMAPHORE_TRIGGER_ACQUIRE_GEQUAL | |
| 68 | NVC0_SUBCHAN_SEMAPHORE_TRIGGER_YIELD); |
| 69 | FIRE_RING (chan); |
| 70 | } |
| 71 | return ret; |
| 72 | } |
| 73 | |
| 74 | static int |
| 75 | nvc0_fence_context_new(struct nouveau_channel *chan) |
| 76 | { |
| 77 | int ret = nv84_fence_context_new(chan); |
| 78 | if (ret == 0) { |
| 79 | struct nv84_fence_chan *fctx = chan->fence; |
| 80 | fctx->base.emit32 = nvc0_fence_emit32; |
| 81 | fctx->base.sync32 = nvc0_fence_sync32; |
| 82 | } |
| 83 | return ret; |
| 84 | } |
| 85 | |
| 86 | int |
| 87 | nvc0_fence_create(struct nouveau_drm *drm) |
| 88 | { |
| 89 | int ret = nv84_fence_create(drm); |
| 90 | if (ret == 0) { |
| 91 | struct nv84_fence_priv *priv = drm->fence; |
| 92 | priv->base.context_new = nvc0_fence_context_new; |
| 93 | } |
| 94 | return ret; |
| 95 | } |
| 96 | |