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1/*2 * Copyright 2007 Dave Airlied3 * All Rights Reserved.4 *5 * Permission is hereby granted, free of charge, to any person obtaining a6 * copy of this software and associated documentation files (the "Software"),7 * to deal in the Software without restriction, including without limitation8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,9 * and/or sell copies of the Software, and to permit persons to whom the10 * Software is furnished to do so, subject to the following conditions:11 *12 * The above copyright notice and this permission notice (including the next13 * paragraph) shall be included in all copies or substantial portions of the14 * Software.15 *16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL19 * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR20 * 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 OR22 * OTHER DEALINGS IN THE SOFTWARE.23 */24/*25 * Authors: Dave Airlied <airlied@linux.ie>26 * Ben Skeggs <darktama@iinet.net.au>27 * Jeremy Kolb <jkolb@brandeis.edu>28 */29#include "nouveau_bo.h"30#include "nouveau_dma.h"31#include "nouveau_drv.h"32 33#include <nvif/push006c.h>34 35#include <nvhw/class/cl0039.h>36 37static inline uint32_t38nouveau_bo_mem_ctxdma(struct ttm_buffer_object *bo,39 struct nouveau_channel *chan, struct ttm_resource *reg)40{41 if (reg->mem_type == TTM_PL_TT)42 return NvDmaTT;43 return chan->vram.handle;44}45 46int47nv04_bo_move_m2mf(struct nouveau_channel *chan, struct ttm_buffer_object *bo,48 struct ttm_resource *old_reg, struct ttm_resource *new_reg)49{50 struct nvif_push *push = &chan->chan.push;51 u32 src_ctxdma = nouveau_bo_mem_ctxdma(bo, chan, old_reg);52 u32 src_offset = old_reg->start << PAGE_SHIFT;53 u32 dst_ctxdma = nouveau_bo_mem_ctxdma(bo, chan, new_reg);54 u32 dst_offset = new_reg->start << PAGE_SHIFT;55 u32 page_count = PFN_UP(new_reg->size);56 int ret;57 58 ret = PUSH_WAIT(push, 3);59 if (ret)60 return ret;61 62 PUSH_MTHD(push, NV039, SET_CONTEXT_DMA_BUFFER_IN, src_ctxdma,63 SET_CONTEXT_DMA_BUFFER_OUT, dst_ctxdma);64 65 page_count = PFN_UP(new_reg->size);66 while (page_count) {67 int line_count = (page_count > 2047) ? 2047 : page_count;68 69 ret = PUSH_WAIT(push, 11);70 if (ret)71 return ret;72 73 PUSH_MTHD(push, NV039, OFFSET_IN, src_offset,74 OFFSET_OUT, dst_offset,75 PITCH_IN, PAGE_SIZE,76 PITCH_OUT, PAGE_SIZE,77 LINE_LENGTH_IN, PAGE_SIZE,78 LINE_COUNT, line_count,79 80 FORMAT,81 NVVAL(NV039, FORMAT, IN, 1) |82 NVVAL(NV039, FORMAT, OUT, 1),83 84 BUFFER_NOTIFY, NV039_BUFFER_NOTIFY_WRITE_ONLY);85 86 PUSH_MTHD(push, NV039, NO_OPERATION, 0x00000000);87 88 page_count -= line_count;89 src_offset += (PAGE_SIZE * line_count);90 dst_offset += (PAGE_SIZE * line_count);91 }92 93 return 0;94}95 96int97nv04_bo_move_init(struct nouveau_channel *chan, u32 handle)98{99 struct nvif_push *push = &chan->chan.push;100 int ret;101 102 ret = PUSH_WAIT(push, 4);103 if (ret)104 return ret;105 106 PUSH_MTHD(push, NV039, SET_OBJECT, handle);107 PUSH_MTHD(push, NV039, SET_CONTEXT_DMA_NOTIFIES, chan->cli->drm->ntfy.handle);108 return 0;109}110