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