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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
commit | 2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch) | |
tree | 848558de17fb3008cdf4d861b01ac7781903ce39 /drivers/crypto/caam/sg_sw_qm.h | |
parent | Initial commit. (diff) | |
download | linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip |
Adding upstream version 6.1.76.upstream/6.1.76upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/crypto/caam/sg_sw_qm.h')
-rw-r--r-- | drivers/crypto/caam/sg_sw_qm.h | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/drivers/crypto/caam/sg_sw_qm.h b/drivers/crypto/caam/sg_sw_qm.h new file mode 100644 index 000000000..d56cc7efb --- /dev/null +++ b/drivers/crypto/caam/sg_sw_qm.h @@ -0,0 +1,85 @@ +/* SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause) */ +/* + * Copyright 2013-2016 Freescale Semiconductor, Inc. + * Copyright 2016-2017 NXP + */ + +#ifndef __SG_SW_QM_H +#define __SG_SW_QM_H + +#include <soc/fsl/qman.h> +#include "regs.h" + +static inline void __dma_to_qm_sg(struct qm_sg_entry *qm_sg_ptr, dma_addr_t dma, + u16 offset) +{ + qm_sg_entry_set64(qm_sg_ptr, dma); + qm_sg_ptr->__reserved2 = 0; + qm_sg_ptr->bpid = 0; + qm_sg_ptr->offset = cpu_to_be16(offset & QM_SG_OFF_MASK); +} + +static inline void dma_to_qm_sg_one(struct qm_sg_entry *qm_sg_ptr, + dma_addr_t dma, u32 len, u16 offset) +{ + __dma_to_qm_sg(qm_sg_ptr, dma, offset); + qm_sg_entry_set_len(qm_sg_ptr, len); +} + +static inline void dma_to_qm_sg_one_last(struct qm_sg_entry *qm_sg_ptr, + dma_addr_t dma, u32 len, u16 offset) +{ + __dma_to_qm_sg(qm_sg_ptr, dma, offset); + qm_sg_entry_set_f(qm_sg_ptr, len); +} + +static inline void dma_to_qm_sg_one_ext(struct qm_sg_entry *qm_sg_ptr, + dma_addr_t dma, u32 len, u16 offset) +{ + __dma_to_qm_sg(qm_sg_ptr, dma, offset); + qm_sg_ptr->cfg = cpu_to_be32(QM_SG_EXT | (len & QM_SG_LEN_MASK)); +} + +static inline void dma_to_qm_sg_one_last_ext(struct qm_sg_entry *qm_sg_ptr, + dma_addr_t dma, u32 len, + u16 offset) +{ + __dma_to_qm_sg(qm_sg_ptr, dma, offset); + qm_sg_ptr->cfg = cpu_to_be32(QM_SG_EXT | QM_SG_FIN | + (len & QM_SG_LEN_MASK)); +} + +/* + * convert scatterlist to h/w link table format + * but does not have final bit; instead, returns last entry + */ +static inline struct qm_sg_entry * +sg_to_qm_sg(struct scatterlist *sg, int len, + struct qm_sg_entry *qm_sg_ptr, u16 offset) +{ + int ent_len; + + while (len) { + ent_len = min_t(int, sg_dma_len(sg), len); + + dma_to_qm_sg_one(qm_sg_ptr, sg_dma_address(sg), ent_len, + offset); + qm_sg_ptr++; + sg = sg_next(sg); + len -= ent_len; + } + 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 len, + struct qm_sg_entry *qm_sg_ptr, u16 offset) +{ + qm_sg_ptr = sg_to_qm_sg(sg, len, qm_sg_ptr, offset); + qm_sg_entry_set_f(qm_sg_ptr, qm_sg_entry_get_len(qm_sg_ptr)); +} + +#endif /* __SG_SW_QM_H */ |