diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nouveau_bo90b5.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_bo90b5.c | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_bo90b5.c b/drivers/gpu/drm/nouveau/nouveau_bo90b5.c new file mode 100644 index 000000000..8499f5821 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nouveau_bo90b5.c @@ -0,0 +1,67 @@ +/* + * Copyright 2020 Red Hat Inc. + * + * 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 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 + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) 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. + */ +#include "nouveau_bo.h" +#include "nouveau_dma.h" +#include "nouveau_mem.h" + +#include <nvif/push906f.h> + +/*XXX: Fixup class to be compatible with NVIDIA's, which will allow sharing + * code with KeplerDmaCopyA. + */ + +int +nvc0_bo_move_copy(struct nouveau_channel *chan, struct ttm_buffer_object *bo, + struct ttm_resource *old_reg, struct ttm_resource *new_reg) +{ + struct nouveau_mem *mem = nouveau_mem(old_reg); + struct nvif_push *push = chan->chan.push; + u64 src_offset = mem->vma[0].addr; + u64 dst_offset = mem->vma[1].addr; + u32 page_count = new_reg->num_pages; + int ret; + + page_count = new_reg->num_pages; + while (page_count) { + int line_count = (page_count > 8191) ? 8191 : page_count; + + ret = PUSH_WAIT(push, 10); + if (ret) + return ret; + + PUSH_NVSQ(push, NV90B5, 0x030c, upper_32_bits(src_offset), + 0x0310, lower_32_bits(src_offset), + 0x0314, upper_32_bits(dst_offset), + 0x0318, lower_32_bits(dst_offset), + 0x031c, PAGE_SIZE, + 0x0320, PAGE_SIZE, + 0x0324, PAGE_SIZE, + 0x0328, line_count); + PUSH_NVIM(push, NV90B5, 0x0300, 0x0110); + + page_count -= line_count; + src_offset += (PAGE_SIZE * line_count); + dst_offset += (PAGE_SIZE * line_count); + } + + return 0; +} |