Lines Matching defs:miter
14 static bool sg_dwiter_next(struct sg_mapping_iter *miter)
16 if (sg_miter_next(miter)) {
17 miter->consumed = 0;
23 static bool sg_dwiter_is_at_end(struct sg_mapping_iter *miter)
25 return miter->length == miter->consumed && !sg_dwiter_next(miter);
28 static uint32_t sg_dwiter_read_buffer(struct sg_mapping_iter *miter)
35 len = min(miter->length - miter->consumed, left);
36 memcpy(addr, miter->addr + miter->consumed, len);
37 miter->consumed += len;
42 } while (sg_dwiter_next(miter));
57 static bool sg_dwiter_get_next_block(struct sg_mapping_iter *miter, uint32_t **ptr)
61 if (sg_dwiter_is_at_end(miter))
64 len = miter->length - miter->consumed;
67 miter->addr + miter->consumed))) {
68 *ptr = miter->addr + miter->consumed;
69 miter->consumed += 4;
78 * @miter: sg mapping iterator used for reading
81 * Returns 32-bit word starting at byte pointed to by @miter@
83 * are not accessed (read) but are returned as zeroes. @miter@
93 uint32_t cb710_sg_dwiter_read_next_block(struct sg_mapping_iter *miter)
97 if (likely(sg_dwiter_get_next_block(miter, &ptr)))
100 return sg_dwiter_read_buffer(miter);
104 static void sg_dwiter_write_slow(struct sg_mapping_iter *miter, uint32_t data)
110 len = min(miter->length - miter->consumed, left);
111 memcpy(miter->addr, addr, len);
112 miter->consumed += len;
117 } while (sg_dwiter_next(miter));
122 * @miter: sg mapping iterator used for writing
125 * Writes 32-bit word starting at byte pointed to by @miter@
127 * past the buffer's end are silently discarded. @miter@ is
133 void cb710_sg_dwiter_write_next_block(struct sg_mapping_iter *miter, uint32_t data)
137 if (likely(sg_dwiter_get_next_block(miter, &ptr))) {
143 sg_dwiter_write_slow(miter, data);