drm/nouveau/nouveau_bo0039.c

0001 /*
0002  * Copyright 2007 Dave Airlied
0003  * All Rights Reserved.
0004  *
0005  * Permission is hereby granted, free of charge, to any person obtaining a
0006  * copy of this software and associated documentation files (the "Software"),
0007  * to deal in the Software without restriction, including without limitation
0008  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
0009  * and/or sell copies of the Software, and to permit persons to whom the
0010  * Software is furnished to do so, subject to the following conditions:
0011  *
0012  * The above copyright notice and this permission notice (including the next
0013  * paragraph) shall be included in all copies or substantial portions of the
0014  * Software.
0015  *
0016  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
0017  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
0018  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
0019  * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
0020  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
0021  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
0022  * OTHER DEALINGS IN THE SOFTWARE.
0023  */
0024 /*
0025  * Authors: Dave Airlied <airlied@linux.ie>
0026  *      Ben Skeggs   <darktama@iinet.net.au>
0027  *      Jeremy Kolb  <jkolb@brandeis.edu>
0028  */
0029 #include "nouveau_bo.h"
0030 #include "nouveau_dma.h"
0031 #include "nouveau_drv.h"
0032
0033 #include <nvif/push006c.h>
0034
0035 #include <nvhw/class/cl0039.h>
0036
0037 static inline uint32_t
0038 nouveau_bo_mem_ctxdma(struct ttm_buffer_object *bo,
0039               struct nouveau_channel *chan, struct ttm_resource *reg)
0040 {
0041     if (reg->mem_type == TTM_PL_TT)
0042         return NvDmaTT;
0043     return chan->vram.handle;
0044 }
0045
0046 int
0047 nv04_bo_move_m2mf(struct nouveau_channel *chan, struct ttm_buffer_object *bo,
0048           struct ttm_resource *old_reg, struct ttm_resource *new_reg)
0049 {
0050     struct nvif_push *push = chan->chan.push;
0051     u32 src_ctxdma = nouveau_bo_mem_ctxdma(bo, chan, old_reg);
0052     u32 src_offset = old_reg->start << PAGE_SHIFT;
0053     u32 dst_ctxdma = nouveau_bo_mem_ctxdma(bo, chan, new_reg);
0054     u32 dst_offset = new_reg->start << PAGE_SHIFT;
0055     u32 page_count = new_reg->num_pages;
0056     int ret;
0057
0058     ret = PUSH_WAIT(push, 3);
0059     if (ret)
0060         return ret;
0061
0062     PUSH_MTHD(push, NV039, SET_CONTEXT_DMA_BUFFER_IN, src_ctxdma,
0063                    SET_CONTEXT_DMA_BUFFER_OUT, dst_ctxdma);
0064
0065     page_count = new_reg->num_pages;
0066     while (page_count) {
0067         int line_count = (page_count > 2047) ? 2047 : page_count;
0068
0069         ret = PUSH_WAIT(push, 11);
0070         if (ret)
0071             return ret;
0072
0073         PUSH_MTHD(push, NV039, OFFSET_IN, src_offset,
0074                        OFFSET_OUT, dst_offset,
0075                        PITCH_IN, PAGE_SIZE,
0076                        PITCH_OUT, PAGE_SIZE,
0077                        LINE_LENGTH_IN, PAGE_SIZE,
0078                        LINE_COUNT, line_count,
0079
0080                        FORMAT,
0081               NVVAL(NV039, FORMAT, IN, 1) |
0082               NVVAL(NV039, FORMAT, OUT, 1),
0083
0084                        BUFFER_NOTIFY, NV039_BUFFER_NOTIFY_WRITE_ONLY);
0085
0086         PUSH_MTHD(push, NV039, NO_OPERATION, 0x00000000);
0087
0088         page_count -= line_count;
0089         src_offset += (PAGE_SIZE * line_count);
0090         dst_offset += (PAGE_SIZE * line_count);
0091     }
0092
0093     return 0;
0094 }
0095
0096 int
0097 nv04_bo_move_init(struct nouveau_channel *chan, u32 handle)
0098 {
0099     struct nvif_push *push = chan->chan.push;
0100     int ret;
0101
0102     ret = PUSH_WAIT(push, 4);
0103     if (ret)
0104         return ret;
0105
0106     PUSH_MTHD(push, NV039, SET_OBJECT, handle);
0107     PUSH_MTHD(push, NV039, SET_CONTEXT_DMA_NOTIFIES, chan->drm->ntfy.handle);
0108     return 0;
0109 }