drivers/gpu/drm/nouveau/nouveau_bo9039.c

   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
  37 int
  38 nvc0_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
  86 int
  87 nvc0_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 }