diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nouveau_bo0039.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_bo0039.c | 109 |
1 files changed, 109 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_bo0039.c b/drivers/gpu/drm/nouveau/nouveau_bo0039.c new file mode 100644 index 000000000000..bf7ae2cecaf6 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nouveau_bo0039.c @@ -0,0 +1,109 @@ +/* + * 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_mem_reg *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_mem_reg *old_reg, struct ttm_mem_reg *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 = new_reg->num_pages; + 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 = new_reg->num_pages; + 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; +} |