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37 #include <soc/fsl/qman.h>
40 static inline void __dma_to_qm_sg(struct qm_sg_entry *qm_sg_ptr, dma_addr_t dma,
43 qm_sg_entry_set64(qm_sg_ptr, dma);
44 qm_sg_ptr->__reserved2 = 0;
46 qm_sg_ptr->offset = cpu_to_be16(offset & QM_SG_OFF_MASK);
49 static inline void dma_to_qm_sg_one(struct qm_sg_entry *qm_sg_ptr,
50 dma_addr_t dma, u32 len, u16 offset)
52 __dma_to_qm_sg(qm_sg_ptr, dma, offset);
53 qm_sg_entry_set_len(qm_sg_ptr, len);
56 static inline void dma_to_qm_sg_one_last(struct qm_sg_entry *qm_sg_ptr,
57 dma_addr_t dma, u32 len, u16 offset)
59 __dma_to_qm_sg(qm_sg_ptr, dma, offset);
60 qm_sg_entry_set_f(qm_sg_ptr, len);
63 static inline void dma_to_qm_sg_one_ext(struct qm_sg_entry *qm_sg_ptr,
64 dma_addr_t dma, u32 len, u16 offset)
66 __dma_to_qm_sg(qm_sg_ptr, dma, offset);
67 qm_sg_ptr->cfg = cpu_to_be32(QM_SG_EXT | (len & QM_SG_LEN_MASK));
70 static inline void dma_to_qm_sg_one_last_ext(struct qm_sg_entry *qm_sg_ptr,
71 dma_addr_t dma, u32 len,
74 __dma_to_qm_sg(qm_sg_ptr, dma, offset);
75 qm_sg_ptr->cfg = cpu_to_be32(QM_SG_EXT | QM_SG_FIN |
76 (len & QM_SG_LEN_MASK));
80 * convert scatterlist to h/w link table format
81 * but does not have final bit; instead, returns last entry
83 static inline struct qm_sg_entry *
84 sg_to_qm_sg(struct scatterlist *sg, int sg_count,
85 struct qm_sg_entry *qm_sg_ptr, u16 offset)
87 while (sg_count && sg) {
88 dma_to_qm_sg_one(qm_sg_ptr, sg_dma_address(sg),
89 sg_dma_len(sg), offset);
98 * convert scatterlist to h/w link table format
99 * scatterlist must have been previously dma mapped
101 static inline void sg_to_qm_sg_last(struct scatterlist *sg, int sg_count,
102 struct qm_sg_entry *qm_sg_ptr, u16 offset)
104 qm_sg_ptr = sg_to_qm_sg(sg, sg_count, qm_sg_ptr, offset);
105 qm_sg_entry_set_f(qm_sg_ptr, qm_sg_entry_get_len(qm_sg_ptr));
108 #endif /* __SG_SW_QM_H */