mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-16 01:46:51 +07:00
297b9cebd2
Add support for using the caam/jr backend on DPAA2-based SoCs. These have some particularities we have to account for: -HW S/G format is different -Management Complex (MC) firmware initializes / manages (partially) the CAAM block: MCFGR, QI enablement in QICTL, RNG Signed-off-by: Horia Geantă <horia.geanta@nxp.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
82 lines
3.0 KiB
C
82 lines
3.0 KiB
C
/*
|
|
* Copyright 2015-2016 Freescale Semiconductor, Inc.
|
|
* Copyright 2017 NXP
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions are met:
|
|
* * Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* * Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* * Neither the names of the above-listed copyright holders nor the
|
|
* names of any contributors may be used to endorse or promote products
|
|
* derived from this software without specific prior written permission.
|
|
*
|
|
*
|
|
* ALTERNATIVELY, this software may be distributed under the terms of the
|
|
* GNU General Public License ("GPL") as published by the Free Software
|
|
* Foundation, either version 2 of that License or (at your option) any
|
|
* later version.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
|
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
|
|
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
* POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#ifndef _SG_SW_QM2_H_
|
|
#define _SG_SW_QM2_H_
|
|
|
|
#include "../../../drivers/staging/fsl-mc/include/dpaa2-fd.h"
|
|
|
|
static inline void dma_to_qm_sg_one(struct dpaa2_sg_entry *qm_sg_ptr,
|
|
dma_addr_t dma, u32 len, u16 offset)
|
|
{
|
|
dpaa2_sg_set_addr(qm_sg_ptr, dma);
|
|
dpaa2_sg_set_format(qm_sg_ptr, dpaa2_sg_single);
|
|
dpaa2_sg_set_final(qm_sg_ptr, false);
|
|
dpaa2_sg_set_len(qm_sg_ptr, len);
|
|
dpaa2_sg_set_bpid(qm_sg_ptr, 0);
|
|
dpaa2_sg_set_offset(qm_sg_ptr, offset);
|
|
}
|
|
|
|
/*
|
|
* convert scatterlist to h/w link table format
|
|
* but does not have final bit; instead, returns last entry
|
|
*/
|
|
static inline struct dpaa2_sg_entry *
|
|
sg_to_qm_sg(struct scatterlist *sg, int sg_count,
|
|
struct dpaa2_sg_entry *qm_sg_ptr, u16 offset)
|
|
{
|
|
while (sg_count && sg) {
|
|
dma_to_qm_sg_one(qm_sg_ptr, sg_dma_address(sg),
|
|
sg_dma_len(sg), offset);
|
|
qm_sg_ptr++;
|
|
sg = sg_next(sg);
|
|
sg_count--;
|
|
}
|
|
return qm_sg_ptr - 1;
|
|
}
|
|
|
|
/*
|
|
* convert scatterlist to h/w link table format
|
|
* scatterlist must have been previously dma mapped
|
|
*/
|
|
static inline void sg_to_qm_sg_last(struct scatterlist *sg, int sg_count,
|
|
struct dpaa2_sg_entry *qm_sg_ptr,
|
|
u16 offset)
|
|
{
|
|
qm_sg_ptr = sg_to_qm_sg(sg, sg_count, qm_sg_ptr, offset);
|
|
dpaa2_sg_set_final(qm_sg_ptr, true);
|
|
}
|
|
|
|
#endif /* _SG_SW_QM2_H_ */
|