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/*
* Copyright 2010 Jerome Glisse <glisse@freedesktop.org>
* Copyright 2014,2015 Advanced Micro Devices, 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
* on the rights to use, copy, modify, merge, publish, distribute, sub
* license, 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 NON-INFRINGEMENT. IN NO EVENT SHALL
* THE AUTHOR(S) AND/OR THEIR 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:
* Jerome Glisse
*/
#include "sid.h"
#include "si_pipe.h"
#include "radeon/r600_cs.h"
#include "util/u_format.h"
static void cik_sdma_do_copy_buffer(struct si_context *ctx,
struct pipe_resource *dst,
struct pipe_resource *src,
uint64_t dst_offset,
uint64_t src_offset,
uint64_t size)
{
struct radeon_winsys_cs *cs = ctx->b.dma.cs;
unsigned i, ncopy, csize;
struct r600_resource *rdst = (struct r600_resource*)dst;
struct r600_resource *rsrc = (struct r600_resource*)src;
dst_offset += r600_resource(dst)->gpu_address;
src_offset += r600_resource(src)->gpu_address;
ncopy = DIV_ROUND_UP(size, CIK_SDMA_COPY_MAX_SIZE);
r600_need_dma_space(&ctx->b, ncopy * 7);
radeon_add_to_buffer_list(&ctx->b, &ctx->b.dma, rsrc, RADEON_USAGE_READ,
RADEON_PRIO_SDMA_BUFFER);
radeon_add_to_buffer_list(&ctx->b, &ctx->b.dma, rdst, RADEON_USAGE_WRITE,
RADEON_PRIO_SDMA_BUFFER);
for (i = 0; i < ncopy; i++) {
csize = MIN2(size, CIK_SDMA_COPY_MAX_SIZE);
cs->buf[cs->cdw++] = CIK_SDMA_PACKET(CIK_SDMA_OPCODE_COPY,
CIK_SDMA_COPY_SUB_OPCODE_LINEAR,
0);
cs->buf[cs->cdw++] = csize;
cs->buf[cs->cdw++] = 0; /* src/dst endian swap */
cs->buf[cs->cdw++] = src_offset;
cs->buf[cs->cdw++] = src_offset >> 32;
cs->buf[cs->cdw++] = dst_offset;
cs->buf[cs->cdw++] = dst_offset >> 32;
dst_offset += csize;
src_offset += csize;
size -= csize;
}
}
static void cik_sdma_copy_buffer(struct si_context *ctx,
struct pipe_resource *dst,
struct pipe_resource *src,
uint64_t dst_offset,
uint64_t src_offset,
uint64_t size)
{
struct r600_resource *rdst = (struct r600_resource*)dst;
/* Mark the buffer range of destination as valid (initialized),
* so that transfer_map knows it should wait for the GPU when mapping
* that range. */
util_range_add(&rdst->valid_buffer_range, dst_offset,
dst_offset + size);
cik_sdma_do_copy_buffer(ctx, dst, src, dst_offset, src_offset, size);
}
static void cik_sdma_copy(struct pipe_context *ctx,
struct pipe_resource *dst,
unsigned dst_level,
unsigned dstx, unsigned dsty, unsigned dstz,
struct pipe_resource *src,
unsigned src_level,
const struct pipe_box *src_box)
{
struct si_context *sctx = (struct si_context *)ctx;
if (!sctx->b.dma.cs)
goto fallback;
if (dst->target == PIPE_BUFFER && src->target == PIPE_BUFFER) {
cik_sdma_copy_buffer(sctx, dst, src, dstx, src_box->x, src_box->width);
return;
}
fallback:
si_resource_copy_region(ctx, dst, dst_level, dstx, dsty, dstz,
src, src_level, src_box);
}
void cik_init_sdma_functions(struct si_context *sctx)
{
sctx->b.dma_copy = cik_sdma_copy;
}
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