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_drv.h" 32 33 #include <nvif/push006c.h> 34 35 #include <nvhw/class/cl0039.h> 36 37 static inline uint32_t 38 nouveau_bo_mem_ctxdma(struct ttm_buffer_object *bo, 39 struct nouveau_channel *chan, struct ttm_resource *reg) 40 { 41 if (reg->mem_type == TTM_PL_TT) 42 return NvDmaTT; 43 return chan->vram.handle; 44 } 45 46 int 47 nv04_bo_move_m2mf(struct nouveau_channel *chan, struct ttm_buffer_object *bo, 48 struct ttm_resource *old_reg, struct ttm_resource *new_reg) 49 { 50 struct nvif_push *push = &chan->chan.push; 51 u32 src_ctxdma = nouveau_bo_mem_ctxdma(bo, chan, old_reg); 52 u32 src_offset = old_reg->start << PAGE_SHIFT; 53 u32 dst_ctxdma = nouveau_bo_mem_ctxdma(bo, chan, new_reg); 54 u32 dst_offset = new_reg->start << PAGE_SHIFT; 55 u32 page_count = PFN_UP(new_reg->size); 56 int ret; 57 58 ret = PUSH_WAIT(push, 3); 59 if (ret) 60 return ret; 61 62 PUSH_MTHD(push, NV039, SET_CONTEXT_DMA_BUFFER_IN, src_ctxdma, 63 SET_CONTEXT_DMA_BUFFER_OUT, dst_ctxdma); 64 65 page_count = PFN_UP(new_reg->size); 66 while (page_count) { 67 int line_count = (page_count > 2047) ? 2047 : page_count; 68 69 ret = PUSH_WAIT(push, 11); 70 if (ret) 71 return ret; 72 73 PUSH_MTHD(push, NV039, OFFSET_IN, src_offset, 74 OFFSET_OUT, dst_offset, 75 PITCH_IN, PAGE_SIZE, 76 PITCH_OUT, PAGE_SIZE, 77 LINE_LENGTH_IN, PAGE_SIZE, 78 LINE_COUNT, line_count, 79 80 FORMAT, 81 NVVAL(NV039, FORMAT, IN, 1) | 82 NVVAL(NV039, FORMAT, OUT, 1), 83 84 BUFFER_NOTIFY, NV039_BUFFER_NOTIFY_WRITE_ONLY); 85 86 PUSH_MTHD(push, NV039, NO_OPERATION, 0x00000000); 87 88 page_count -= line_count; 89 src_offset += (PAGE_SIZE * line_count); 90 dst_offset += (PAGE_SIZE * line_count); 91 } 92 93 return 0; 94 } 95 96 int 97 nv04_bo_move_init(struct nouveau_channel *chan, u32 handle) 98 { 99 struct nvif_push *push = &chan->chan.push; 100 int ret; 101 102 ret = PUSH_WAIT(push, 4); 103 if (ret) 104 return ret; 105 106 PUSH_MTHD(push, NV039, SET_OBJECT, handle); 107 PUSH_MTHD(push, NV039, SET_CONTEXT_DMA_NOTIFIES, chan->cli->drm->ntfy.handle); 108 return 0; 109 } 110