/*
* 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 = PFN_UP(new_reg->size);
int ret;
page_count = PFN_UP(new_reg->size);
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, 0 x030c, upper_32_bits(src_offset),
0 x0310, lower_32_bits(src_offset),
0 x0314, upper_32_bits(dst_offset),
0 x0318, lower_32_bits(dst_offset),
0 x031c, PAGE_SIZE,
0 x0320, PAGE_SIZE,
0 x0324, PAGE_SIZE,
0 x0328, line_count);
PUSH_NVIM(push, NV90B5, 0 x0300, 0 x0110);
page_count -= line_count;
src_offset += (PAGE_SIZE * line_count);
dst_offset += (PAGE_SIZE * line_count);
}
return 0 ;
}
Messung V0.5 in Prozent C=98 H=85 G=91
¤ Dauer der Verarbeitung: 0.9 Sekunden
(vorverarbeitet am 2026-09-28)
¤
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