1f589be88SBen Skeggs /* 2f589be88SBen Skeggs * Copyright 2012 Red Hat Inc. 3f589be88SBen Skeggs * 4f589be88SBen Skeggs * Permission is hereby granted, free of charge, to any person obtaining a 5f589be88SBen Skeggs * copy of this software and associated documentation files (the "Software"), 6f589be88SBen Skeggs * to deal in the Software without restriction, including without limitation 7f589be88SBen Skeggs * the rights to use, copy, modify, merge, publish, distribute, sublicense, 8f589be88SBen Skeggs * and/or sell copies of the Software, and to permit persons to whom the 9f589be88SBen Skeggs * Software is furnished to do so, subject to the following conditions: 10f589be88SBen Skeggs * 11f589be88SBen Skeggs * The above copyright notice and this permission notice shall be included in 12f589be88SBen Skeggs * all copies or substantial portions of the Software. 13f589be88SBen Skeggs * 14f589be88SBen Skeggs * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 15f589be88SBen Skeggs * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 16f589be88SBen Skeggs * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 17f589be88SBen Skeggs * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 18f589be88SBen Skeggs * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 19f589be88SBen Skeggs * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 20f589be88SBen Skeggs * OTHER DEALINGS IN THE SOFTWARE. 21f589be88SBen Skeggs * 22f589be88SBen Skeggs * Authors: Ben Skeggs <bskeggs@redhat.com> 23f589be88SBen Skeggs */ 24f589be88SBen Skeggs 25ebb945a9SBen Skeggs #include <core/object.h> 26ebb945a9SBen Skeggs #include <core/class.h> 27ebb945a9SBen Skeggs 28ebb945a9SBen Skeggs #include "nouveau_drm.h" 29f589be88SBen Skeggs #include "nouveau_dma.h" 30f589be88SBen Skeggs #include "nouveau_fence.h" 31f589be88SBen Skeggs 3277145f1cSBen Skeggs #include "nv50_display.h" 3377145f1cSBen Skeggs 34f589be88SBen Skeggs struct nv50_fence_chan { 35f589be88SBen Skeggs struct nouveau_fence_chan base; 36f589be88SBen Skeggs }; 37f589be88SBen Skeggs 38f589be88SBen Skeggs struct nv50_fence_priv { 39f589be88SBen Skeggs struct nouveau_fence_priv base; 40f589be88SBen Skeggs struct nouveau_bo *bo; 41f589be88SBen Skeggs spinlock_t lock; 42f589be88SBen Skeggs u32 sequence; 43f589be88SBen Skeggs }; 44f589be88SBen Skeggs 45f589be88SBen Skeggs static int 46f589be88SBen Skeggs nv50_fence_context_new(struct nouveau_channel *chan) 47f589be88SBen Skeggs { 4877145f1cSBen Skeggs struct drm_device *dev = chan->drm->dev; 49ebb945a9SBen Skeggs struct nv50_fence_priv *priv = chan->drm->fence; 50f589be88SBen Skeggs struct nv50_fence_chan *fctx; 51f589be88SBen Skeggs struct ttm_mem_reg *mem = &priv->bo->bo.mem; 52ebb945a9SBen Skeggs struct nouveau_object *object; 53ebb945a9SBen Skeggs int ret, i; 54f589be88SBen Skeggs 55f589be88SBen Skeggs fctx = chan->fence = kzalloc(sizeof(*fctx), GFP_KERNEL); 56f589be88SBen Skeggs if (!fctx) 57f589be88SBen Skeggs return -ENOMEM; 58f589be88SBen Skeggs 59f589be88SBen Skeggs nouveau_fence_context_new(&fctx->base); 60f589be88SBen Skeggs 61ebb945a9SBen Skeggs ret = nouveau_object_new(nv_object(chan->cli), chan->handle, 62ebb945a9SBen Skeggs NvSema, 0x0002, 63ebb945a9SBen Skeggs &(struct nv_dma_class) { 64ebb945a9SBen Skeggs .flags = NV_DMA_TARGET_VRAM | 65ebb945a9SBen Skeggs NV_DMA_ACCESS_RDWR, 66ebb945a9SBen Skeggs .start = mem->start * PAGE_SIZE, 67ebb945a9SBen Skeggs .limit = mem->size - 1, 68ebb945a9SBen Skeggs }, sizeof(struct nv_dma_class), 69ebb945a9SBen Skeggs &object); 70f589be88SBen Skeggs 71f589be88SBen Skeggs /* dma objects for display sync channel semaphore blocks */ 7277145f1cSBen Skeggs for (i = 0; !ret && i < dev->mode_config.num_crtc; i++) { 73e225f446SBen Skeggs struct nouveau_bo *bo = nv50_display_crtc_sema(dev, i); 74f589be88SBen Skeggs 75ebb945a9SBen Skeggs ret = nouveau_object_new(nv_object(chan->cli), chan->handle, 76ebb945a9SBen Skeggs NvEvoSema0 + i, 0x003d, 77ebb945a9SBen Skeggs &(struct nv_dma_class) { 78ebb945a9SBen Skeggs .flags = NV_DMA_TARGET_VRAM | 79ebb945a9SBen Skeggs NV_DMA_ACCESS_RDWR, 80ebb945a9SBen Skeggs .start = bo->bo.offset, 81ebb945a9SBen Skeggs .limit = bo->bo.offset + 0xfff, 82ebb945a9SBen Skeggs }, sizeof(struct nv_dma_class), 83ebb945a9SBen Skeggs &object); 84f589be88SBen Skeggs } 85f589be88SBen Skeggs 86f589be88SBen Skeggs if (ret) 87f589be88SBen Skeggs nv10_fence_context_del(chan); 88f589be88SBen Skeggs return ret; 89f589be88SBen Skeggs } 90f589be88SBen Skeggs 91f589be88SBen Skeggs int 92ebb945a9SBen Skeggs nv50_fence_create(struct nouveau_drm *drm) 93f589be88SBen Skeggs { 94f589be88SBen Skeggs struct nv50_fence_priv *priv; 95f589be88SBen Skeggs int ret = 0; 96f589be88SBen Skeggs 97ebb945a9SBen Skeggs priv = drm->fence = kzalloc(sizeof(*priv), GFP_KERNEL); 98f589be88SBen Skeggs if (!priv) 99f589be88SBen Skeggs return -ENOMEM; 100f589be88SBen Skeggs 101f589be88SBen Skeggs priv->base.dtor = nv10_fence_destroy; 102f589be88SBen Skeggs priv->base.context_new = nv50_fence_context_new; 103f589be88SBen Skeggs priv->base.context_del = nv10_fence_context_del; 104f589be88SBen Skeggs priv->base.emit = nv10_fence_emit; 105f589be88SBen Skeggs priv->base.read = nv10_fence_read; 106f589be88SBen Skeggs priv->base.sync = nv17_fence_sync; 107f589be88SBen Skeggs spin_lock_init(&priv->lock); 108f589be88SBen Skeggs 109ebb945a9SBen Skeggs ret = nouveau_bo_new(drm->dev, 4096, 0x1000, TTM_PL_FLAG_VRAM, 110f589be88SBen Skeggs 0, 0x0000, NULL, &priv->bo); 111f589be88SBen Skeggs if (!ret) { 112f589be88SBen Skeggs ret = nouveau_bo_pin(priv->bo, TTM_PL_FLAG_VRAM); 113f589be88SBen Skeggs if (!ret) 114f589be88SBen Skeggs ret = nouveau_bo_map(priv->bo); 115f589be88SBen Skeggs if (ret) 116f589be88SBen Skeggs nouveau_bo_ref(NULL, &priv->bo); 117f589be88SBen Skeggs } 118f589be88SBen Skeggs 119ebb945a9SBen Skeggs if (ret == 0) { 120f589be88SBen Skeggs nouveau_bo_wr32(priv->bo, 0x000, 0x00000000); 121ebb945a9SBen Skeggs priv->base.sync = nv17_fence_sync; 122ebb945a9SBen Skeggs } 123ebb945a9SBen Skeggs 124ebb945a9SBen Skeggs if (ret) 125ebb945a9SBen Skeggs nv10_fence_destroy(drm); 126f589be88SBen Skeggs return ret; 127f589be88SBen Skeggs } 128