LXR linux/drivers/gpu/drm/nouveau/nouveau

   1/*
   2 * Copyright 2007 Dave Airlied
   3 * All Rights Reserved.
   4 *
   5 * Permission is hereby granted, free of charge, to any person obtaining a
   6 * copy of this software and associated documentation files (the "Software"),
   7 * to deal in the Software without restriction, including without limitation
   8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   9 * and/or sell copies of the Software, and to permit persons to whom the
  10 * Software is furnished to do so, subject to the following conditions:
  11 *
  12 * The above copyright notice and this permission notice (including the next
  13 * paragraph) shall be included in all copies or substantial portions of the
  14 * 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 * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS 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/*
  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_mem.h"
  32
  33#include <nvif/push906f.h>
  34
  35#include <nvhw/class/cl9039.h>
  36
  37int
  38nvc0_bo_move_m2mf(struct nouveau_channel *chan, struct ttm_buffer_object *bo,
  39                  struct ttm_resource *old_reg, struct ttm_resource *new_reg)
  40{
  41        struct nvif_push *push = chan->chan.push;
  42        struct nouveau_mem *mem = nouveau_mem(old_reg);
  43        u64 src_offset = mem->vma[0].addr;
  44        u64 dst_offset = mem->vma[1].addr;
  45        u32 page_count = new_reg->num_pages;
  46        int ret;
  47
  48        page_count = new_reg->num_pages;
  49        while (page_count) {
  50                int line_count = (page_count > 2047) ? 2047 : page_count;
  51
  52                ret = PUSH_WAIT(push, 12);
  53                if (ret)
  54                        return ret;
  55
  56                PUSH_MTHD(push, NV9039, OFFSET_OUT_UPPER,
  57                          NVVAL(NV9039, OFFSET_OUT_UPPER, VALUE, upper_32_bits(dst_offset)),
  58
  59                                        OFFSET_OUT, lower_32_bits(dst_offset));
  60
  61                PUSH_MTHD(push, NV9039, OFFSET_IN_UPPER,
  62                          NVVAL(NV9039, OFFSET_IN_UPPER, VALUE, upper_32_bits(src_offset)),
  63
  64                                        OFFSET_IN, lower_32_bits(src_offset),
  65                                        PITCH_IN, PAGE_SIZE,
  66                                        PITCH_OUT, PAGE_SIZE,
  67                                        LINE_LENGTH_IN, PAGE_SIZE,
  68                                        LINE_COUNT, line_count);
  69
  70                PUSH_MTHD(push, NV9039, LAUNCH_DMA,
  71                          NVDEF(NV9039, LAUNCH_DMA, SRC_INLINE, FALSE) |
  72                          NVDEF(NV9039, LAUNCH_DMA, SRC_MEMORY_LAYOUT, PITCH) |
  73                          NVDEF(NV9039, LAUNCH_DMA, DST_MEMORY_LAYOUT, PITCH) |
  74                          NVDEF(NV9039, LAUNCH_DMA, COMPLETION_TYPE, FLUSH_DISABLE) |
  75                          NVDEF(NV9039, LAUNCH_DMA, INTERRUPT_TYPE, NONE) |
  76                          NVDEF(NV9039, LAUNCH_DMA, SEMAPHORE_STRUCT_SIZE, ONE_WORD));
  77
  78                page_count -= line_count;
  79                src_offset += (PAGE_SIZE * line_count);
  80                dst_offset += (PAGE_SIZE * line_count);
  81        }
  82
  83        return 0;
  84}
  85
  86int
  87nvc0_bo_move_init(struct nouveau_channel *chan, u32 handle)
  88{
  89        struct nvif_push *push = chan->chan.push;
  90        int ret;
  91
  92        ret = PUSH_WAIT(push, 2);
  93        if (ret)
  94                return ret;
  95
  96        PUSH_MTHD(push, NV9039, SET_OBJECT, handle);
  97        return 0;
  98}
  99