/*
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* Copyright 2007 Dave Airlied
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*/
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/*
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* Authors: Dave Airlied <airlied@linux.ie>
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* Ben Skeggs <darktama@iinet.net.au>
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* Jeremy Kolb <jkolb@brandeis.edu>
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*/
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#include "nouveau_bo.h"
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#include "nouveau_dma.h"
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#include "nouveau_drv.h"
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#include <nvif/push006c.h>
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#include <nvhw/class/cl0039.h>
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static inline uint32_t
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nouveau_bo_mem_ctxdma(struct ttm_buffer_object *bo,
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struct nouveau_channel *chan, struct ttm_resource *reg)
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{
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if (reg->mem_type == TTM_PL_TT)
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return NvDmaTT;
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return chan->vram.handle;
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}
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int
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nv04_bo_move_m2mf(struct nouveau_channel *chan, struct ttm_buffer_object *bo,
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struct ttm_resource *old_reg, struct ttm_resource *new_reg)
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{
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struct nvif_push *push = chan->chan.push;
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u32 src_ctxdma = nouveau_bo_mem_ctxdma(bo, chan, old_reg);
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u32 src_offset = old_reg->start << PAGE_SHIFT;
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u32 dst_ctxdma = nouveau_bo_mem_ctxdma(bo, chan, new_reg);
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u32 dst_offset = new_reg->start << PAGE_SHIFT;
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u32 page_count = new_reg->num_pages;
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int ret;
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ret = PUSH_WAIT(push, 3);
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if (ret)
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return ret;
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PUSH_MTHD(push, NV039, SET_CONTEXT_DMA_BUFFER_IN, src_ctxdma,
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SET_CONTEXT_DMA_BUFFER_OUT, dst_ctxdma);
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page_count = new_reg->num_pages;
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while (page_count) {
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int line_count = (page_count > 2047) ? 2047 : page_count;
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ret = PUSH_WAIT(push, 11);
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if (ret)
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return ret;
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PUSH_MTHD(push, NV039, OFFSET_IN, src_offset,
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OFFSET_OUT, dst_offset,
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PITCH_IN, PAGE_SIZE,
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PITCH_OUT, PAGE_SIZE,
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LINE_LENGTH_IN, PAGE_SIZE,
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LINE_COUNT, line_count,
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FORMAT,
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NVVAL(NV039, FORMAT, IN, 1) |
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NVVAL(NV039, FORMAT, OUT, 1),
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BUFFER_NOTIFY, NV039_BUFFER_NOTIFY_WRITE_ONLY);
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PUSH_MTHD(push, NV039, NO_OPERATION, 0x00000000);
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page_count -= line_count;
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src_offset += (PAGE_SIZE * line_count);
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dst_offset += (PAGE_SIZE * line_count);
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}
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return 0;
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}
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int
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nv04_bo_move_init(struct nouveau_channel *chan, u32 handle)
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{
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struct nvif_push *push = chan->chan.push;
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int ret;
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ret = PUSH_WAIT(push, 4);
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if (ret)
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return ret;
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PUSH_MTHD(push, NV039, SET_OBJECT, handle);
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PUSH_MTHD(push, NV039, SET_CONTEXT_DMA_NOTIFIES, chan->drm->ntfy.handle);
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return 0;
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}
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