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Searched refs:period_len (Results 1 - 25 of 76) sorted by relevance

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/kernel/linux/linux-5.10/drivers/dma/
H A Dmmp_tdma.c123 size_t period_len; member
424 size_t period_len, enum dma_transfer_direction direction, in mmp_tdma_prep_dma_cyclic()
429 int num_periods = buf_len / period_len; in mmp_tdma_prep_dma_cyclic()
442 if (period_len > TDMA_MAX_XFER_BYTES) { in mmp_tdma_prep_dma_cyclic()
445 period_len, TDMA_MAX_XFER_BYTES); in mmp_tdma_prep_dma_cyclic()
474 desc->byte_cnt = period_len; in mmp_tdma_prep_dma_cyclic()
475 dma_addr += period_len; in mmp_tdma_prep_dma_cyclic()
476 buf += period_len; in mmp_tdma_prep_dma_cyclic()
485 tdmac->period_len = period_len; in mmp_tdma_prep_dma_cyclic()
422 mmp_tdma_prep_dma_cyclic( struct dma_chan *chan, dma_addr_t dma_addr, size_t buf_len, size_t period_len, enum dma_transfer_direction direction, unsigned long flags) mmp_tdma_prep_dma_cyclic() argument
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H A Dbcm2835-dma.c225 size_t period_len, in bcm2835_dma_create_cb_set_length()
235 if (!period_len) in bcm2835_dma_create_cb_set_length()
239 * period_len means: that we need to generate in bcm2835_dma_create_cb_set_length()
241 * multiple of period_len - this is typically in bcm2835_dma_create_cb_set_length()
247 if (*total_len + control_block->length < period_len) { in bcm2835_dma_create_cb_set_length()
254 control_block->length = period_len - *total_len; in bcm2835_dma_create_cb_set_length()
293 * @period_len: the period length when to apply @finalextrainfo
297 * (or when period_len is reached in case of cyclic)
304 size_t period_len, gfp_t gfp) in bcm2835_dma_create_cb_chain()
348 len, period_len, in bcm2835_dma_create_cb_chain()
221 bcm2835_dma_create_cb_set_length( struct bcm2835_chan *chan, struct bcm2835_dma_cb *control_block, size_t len, size_t period_len, size_t *total_len, u32 finalextrainfo) bcm2835_dma_create_cb_set_length() argument
300 bcm2835_dma_create_cb_chain( struct dma_chan *chan, enum dma_transfer_direction direction, bool cyclic, u32 info, u32 finalextrainfo, size_t frames, dma_addr_t src, dma_addr_t dst, size_t buf_len, size_t period_len, gfp_t gfp) bcm2835_dma_create_cb_chain() argument
692 bcm2835_dma_prep_dma_cyclic( struct dma_chan *chan, dma_addr_t buf_addr, size_t buf_len, size_t period_len, enum dma_transfer_direction direction, unsigned long flags) bcm2835_dma_prep_dma_cyclic() argument
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H A Dtegra210-adma.c123 size_t period_len; member
404 return desc->buf_len - (periods_remaining * desc->period_len); in tegra_adma_get_residue()
603 ch_regs->tc = desc->period_len & ADMA_CH_TC_COUNT_MASK; in tegra_adma_set_xfer_params()
610 size_t period_len, enum dma_transfer_direction direction, in tegra_adma_prep_dma_cyclic()
616 if (!buf_len || !period_len || period_len > ADMA_CH_TC_COUNT_MASK) { in tegra_adma_prep_dma_cyclic()
621 if (buf_len % period_len) { in tegra_adma_prep_dma_cyclic()
622 dev_err(tdc2dev(tdc), "buf_len not a multiple of period_len\n"); in tegra_adma_prep_dma_cyclic()
636 desc->period_len = period_len; in tegra_adma_prep_dma_cyclic()
608 tegra_adma_prep_dma_cyclic( struct dma_chan *dc, dma_addr_t buf_addr, size_t buf_len, size_t period_len, enum dma_transfer_direction direction, unsigned long flags) tegra_adma_prep_dma_cyclic() argument
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H A Ddma-axi-dmac.c494 unsigned int num_periods, unsigned int period_len, in axi_dmac_fill_linear_sg()
502 num_segments = DIV_ROUND_UP(period_len, chan->max_length); in axi_dmac_fill_linear_sg()
503 segment_size = DIV_ROUND_UP(period_len, num_segments); in axi_dmac_fill_linear_sg()
508 len = period_len; in axi_dmac_fill_linear_sg()
578 size_t period_len, enum dma_transfer_direction direction, in axi_dmac_prep_dma_cyclic()
592 if (period_len == 0 || buf_len % period_len) in axi_dmac_prep_dma_cyclic()
595 num_periods = buf_len / period_len; in axi_dmac_prep_dma_cyclic()
596 num_segments = DIV_ROUND_UP(period_len, chan->max_length); in axi_dmac_prep_dma_cyclic()
603 period_len, des in axi_dmac_prep_dma_cyclic()
492 axi_dmac_fill_linear_sg(struct axi_dmac_chan *chan, enum dma_transfer_direction direction, dma_addr_t addr, unsigned int num_periods, unsigned int period_len, struct axi_dmac_sg *sg) axi_dmac_fill_linear_sg() argument
576 axi_dmac_prep_dma_cyclic( struct dma_chan *c, dma_addr_t buf_addr, size_t buf_len, size_t period_len, enum dma_transfer_direction direction, unsigned long flags) axi_dmac_prep_dma_cyclic() argument
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H A Dst_fdma.c449 size_t period_len, enum dma_transfer_direction direction, in st_fdma_prep_dma_cyclic()
460 if (!period_len) in st_fdma_prep_dma_cyclic()
468 /* the buffer length must be a multiple of period_len */ in st_fdma_prep_dma_cyclic()
469 if (len % period_len != 0) { in st_fdma_prep_dma_cyclic()
474 sg_len = len / period_len; in st_fdma_prep_dma_cyclic()
495 hw_node->saddr = buf_addr + (i * period_len); in st_fdma_prep_dma_cyclic()
497 hw_node->daddr = buf_addr + (i * period_len); in st_fdma_prep_dma_cyclic()
499 hw_node->nbytes = period_len; in st_fdma_prep_dma_cyclic()
500 hw_node->generic.length = period_len; in st_fdma_prep_dma_cyclic()
447 st_fdma_prep_dma_cyclic( struct dma_chan *chan, dma_addr_t buf_addr, size_t len, size_t period_len, enum dma_transfer_direction direction, unsigned long flags) st_fdma_prep_dma_cyclic() argument
H A Dat_hdmac.c1168 size_t period_len) in atc_dma_cyclic_check_values()
1170 if (period_len > (ATC_BTSIZE_MAX << reg_width)) in atc_dma_cyclic_check_values()
1172 if (unlikely(period_len & ((1 << reg_width) - 1))) in atc_dma_cyclic_check_values()
1189 unsigned int reg_width, size_t period_len, in atc_dma_cyclic_fill_desc()
1201 | period_len >> reg_width; in atc_dma_cyclic_fill_desc()
1205 desc->lli.saddr = buf_addr + (period_len * period_index); in atc_dma_cyclic_fill_desc()
1213 desc->len = period_len; in atc_dma_cyclic_fill_desc()
1218 desc->lli.daddr = buf_addr + (period_len * period_index); in atc_dma_cyclic_fill_desc()
1225 desc->len = period_len; in atc_dma_cyclic_fill_desc()
1240 * @period_len
1167 atc_dma_cyclic_check_values(unsigned int reg_width, dma_addr_t buf_addr, size_t period_len) atc_dma_cyclic_check_values() argument
1187 atc_dma_cyclic_fill_desc(struct dma_chan *chan, struct at_desc *desc, unsigned int period_index, dma_addr_t buf_addr, unsigned int reg_width, size_t period_len, enum dma_transfer_direction direction) atc_dma_cyclic_fill_desc() argument
1245 atc_prep_dma_cyclic(struct dma_chan *chan, dma_addr_t buf_addr, size_t buf_len, size_t period_len, enum dma_transfer_direction direction, unsigned long flags) atc_prep_dma_cyclic() argument
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H A Dmxs-dma.c576 size_t period_len, enum dma_transfer_direction direction, in mxs_dma_prep_dma_cyclic()
581 u32 num_periods = buf_len / period_len; in mxs_dma_prep_dma_cyclic()
598 if (period_len > MAX_XFER_BYTES) { in mxs_dma_prep_dma_cyclic()
601 period_len, MAX_XFER_BYTES); in mxs_dma_prep_dma_cyclic()
614 ccw->xfer_bytes = period_len; in mxs_dma_prep_dma_cyclic()
625 dma_addr += period_len; in mxs_dma_prep_dma_cyclic()
626 buf += period_len; in mxs_dma_prep_dma_cyclic()
574 mxs_dma_prep_dma_cyclic( struct dma_chan *chan, dma_addr_t dma_addr, size_t buf_len, size_t period_len, enum dma_transfer_direction direction, unsigned long flags) mxs_dma_prep_dma_cyclic() argument
H A Dimx-sdma.c311 * @period_len: period length, used in cyclic.
323 unsigned int period_len; member
802 bd->mode.count = desc->period_len; in sdma_update_channel_loop()
1520 size_t period_len, enum dma_transfer_direction direction, in sdma_prep_dma_cyclic()
1525 int num_periods = buf_len / period_len; in sdma_prep_dma_cyclic()
1538 desc->period_len = period_len; in sdma_prep_dma_cyclic()
1542 if (period_len > SDMA_BD_MAX_CNT) { in sdma_prep_dma_cyclic()
1544 channel, period_len, SDMA_BD_MAX_CNT); in sdma_prep_dma_cyclic()
1554 bd->mode.count = period_len; in sdma_prep_dma_cyclic()
1518 sdma_prep_dma_cyclic( struct dma_chan *chan, dma_addr_t dma_addr, size_t buf_len, size_t period_len, enum dma_transfer_direction direction, unsigned long flags) sdma_prep_dma_cyclic() argument
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H A Dmmp_pdma.c607 dma_addr_t buf_addr, size_t len, size_t period_len, in mmp_pdma_prep_dma_cyclic()
615 if (!dchan || !len || !period_len) in mmp_pdma_prep_dma_cyclic()
618 /* the buffer length must be a multiple of period_len */ in mmp_pdma_prep_dma_cyclic()
619 if (len % period_len != 0) in mmp_pdma_prep_dma_cyclic()
622 if (period_len > PDMA_MAX_DESC_BYTES) in mmp_pdma_prep_dma_cyclic()
653 (DCMD_LENGTH & period_len)); in mmp_pdma_prep_dma_cyclic()
666 len -= period_len; in mmp_pdma_prep_dma_cyclic()
669 dma_src += period_len; in mmp_pdma_prep_dma_cyclic()
671 dma_dst += period_len; in mmp_pdma_prep_dma_cyclic()
606 mmp_pdma_prep_dma_cyclic(struct dma_chan *dchan, dma_addr_t buf_addr, size_t len, size_t period_len, enum dma_transfer_direction direction, unsigned long flags) mmp_pdma_prep_dma_cyclic() argument
/kernel/linux/linux-6.6/drivers/dma/
H A Dmmp_tdma.c123 size_t period_len; member
424 size_t period_len, enum dma_transfer_direction direction, in mmp_tdma_prep_dma_cyclic()
429 int num_periods = buf_len / period_len; in mmp_tdma_prep_dma_cyclic()
442 if (period_len > TDMA_MAX_XFER_BYTES) { in mmp_tdma_prep_dma_cyclic()
445 period_len, TDMA_MAX_XFER_BYTES); in mmp_tdma_prep_dma_cyclic()
474 desc->byte_cnt = period_len; in mmp_tdma_prep_dma_cyclic()
475 dma_addr += period_len; in mmp_tdma_prep_dma_cyclic()
476 buf += period_len; in mmp_tdma_prep_dma_cyclic()
485 tdmac->period_len = period_len; in mmp_tdma_prep_dma_cyclic()
422 mmp_tdma_prep_dma_cyclic( struct dma_chan *chan, dma_addr_t dma_addr, size_t buf_len, size_t period_len, enum dma_transfer_direction direction, unsigned long flags) mmp_tdma_prep_dma_cyclic() argument
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H A Dbcm2835-dma.c225 size_t period_len, in bcm2835_dma_create_cb_set_length()
235 if (!period_len) in bcm2835_dma_create_cb_set_length()
239 * period_len means: that we need to generate in bcm2835_dma_create_cb_set_length()
241 * multiple of period_len - this is typically in bcm2835_dma_create_cb_set_length()
247 if (*total_len + control_block->length < period_len) { in bcm2835_dma_create_cb_set_length()
254 control_block->length = period_len - *total_len; in bcm2835_dma_create_cb_set_length()
293 * @period_len: the period length when to apply @finalextrainfo
297 * (or when period_len is reached in case of cyclic)
304 size_t period_len, gfp_t gfp) in bcm2835_dma_create_cb_chain()
348 len, period_len, in bcm2835_dma_create_cb_chain()
221 bcm2835_dma_create_cb_set_length( struct bcm2835_chan *chan, struct bcm2835_dma_cb *control_block, size_t len, size_t period_len, size_t *total_len, u32 finalextrainfo) bcm2835_dma_create_cb_set_length() argument
300 bcm2835_dma_create_cb_chain( struct dma_chan *chan, enum dma_transfer_direction direction, bool cyclic, u32 info, u32 finalextrainfo, size_t frames, dma_addr_t src, dma_addr_t dst, size_t buf_len, size_t period_len, gfp_t gfp) bcm2835_dma_create_cb_chain() argument
692 bcm2835_dma_prep_dma_cyclic( struct dma_chan *chan, dma_addr_t buf_addr, size_t buf_len, size_t period_len, enum dma_transfer_direction direction, unsigned long flags) bcm2835_dma_prep_dma_cyclic() argument
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H A Dapple-admac.c142 size_t period_len; member
252 size_t period_len, enum dma_transfer_direction direction, in admac_prep_dma_cyclic()
270 adtx->period_len = period_len; in admac_prep_dma_cyclic()
293 WARN_ON_ONCE(addr + tx->period_len > tx->buf_end); in admac_cyclic_write_one_desc()
296 channo, &addr, tx->period_len, FLAG_DESC_NOTIFY); in admac_cyclic_write_one_desc()
300 writel_relaxed(tx->period_len, ad->base + REG_DESC_WRITE(channo)); in admac_cyclic_write_one_desc()
303 tx->submitted_pos += tx->period_len; in admac_cyclic_write_one_desc()
367 pos = adtx->reclaimed_pos + adtx->period_len * (nreports + 1) - residue2; in admac_cyclic_read_residue()
659 tx->reclaimed_pos += nreports * tx->period_len; in admac_handle_status_desc_done()
250 admac_prep_dma_cyclic( struct dma_chan *chan, dma_addr_t buf_addr, size_t buf_len, size_t period_len, enum dma_transfer_direction direction, unsigned long flags) admac_prep_dma_cyclic() argument
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H A Ddma-axi-dmac.c498 unsigned int num_periods, unsigned int period_len, in axi_dmac_fill_linear_sg()
506 num_segments = DIV_ROUND_UP(period_len, chan->max_length); in axi_dmac_fill_linear_sg()
507 segment_size = DIV_ROUND_UP(period_len, num_segments); in axi_dmac_fill_linear_sg()
512 len = period_len; in axi_dmac_fill_linear_sg()
582 size_t period_len, enum dma_transfer_direction direction, in axi_dmac_prep_dma_cyclic()
596 if (period_len == 0 || buf_len % period_len) in axi_dmac_prep_dma_cyclic()
599 num_periods = buf_len / period_len; in axi_dmac_prep_dma_cyclic()
600 num_segments = DIV_ROUND_UP(period_len, chan->max_length); in axi_dmac_prep_dma_cyclic()
607 period_len, des in axi_dmac_prep_dma_cyclic()
496 axi_dmac_fill_linear_sg(struct axi_dmac_chan *chan, enum dma_transfer_direction direction, dma_addr_t addr, unsigned int num_periods, unsigned int period_len, struct axi_dmac_sg *sg) axi_dmac_fill_linear_sg() argument
580 axi_dmac_prep_dma_cyclic( struct dma_chan *c, dma_addr_t buf_addr, size_t buf_len, size_t period_len, enum dma_transfer_direction direction, unsigned long flags) axi_dmac_prep_dma_cyclic() argument
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H A Dtegra210-adma.c121 size_t period_len; member
402 return desc->buf_len - (periods_remaining * desc->period_len); in tegra_adma_get_residue()
622 ch_regs->tc = desc->period_len & ADMA_CH_TC_COUNT_MASK; in tegra_adma_set_xfer_params()
629 size_t period_len, enum dma_transfer_direction direction, in tegra_adma_prep_dma_cyclic()
635 if (!buf_len || !period_len || period_len > ADMA_CH_TC_COUNT_MASK) { in tegra_adma_prep_dma_cyclic()
640 if (buf_len % period_len) { in tegra_adma_prep_dma_cyclic()
641 dev_err(tdc2dev(tdc), "buf_len not a multiple of period_len\n"); in tegra_adma_prep_dma_cyclic()
655 desc->period_len = period_len; in tegra_adma_prep_dma_cyclic()
627 tegra_adma_prep_dma_cyclic( struct dma_chan *dc, dma_addr_t buf_addr, size_t buf_len, size_t period_len, enum dma_transfer_direction direction, unsigned long flags) tegra_adma_prep_dma_cyclic() argument
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H A Dst_fdma.c449 size_t period_len, enum dma_transfer_direction direction, in st_fdma_prep_dma_cyclic()
460 if (!period_len) in st_fdma_prep_dma_cyclic()
468 /* the buffer length must be a multiple of period_len */ in st_fdma_prep_dma_cyclic()
469 if (len % period_len != 0) { in st_fdma_prep_dma_cyclic()
474 sg_len = len / period_len; in st_fdma_prep_dma_cyclic()
495 hw_node->saddr = buf_addr + (i * period_len); in st_fdma_prep_dma_cyclic()
497 hw_node->daddr = buf_addr + (i * period_len); in st_fdma_prep_dma_cyclic()
499 hw_node->nbytes = period_len; in st_fdma_prep_dma_cyclic()
500 hw_node->generic.length = period_len; in st_fdma_prep_dma_cyclic()
447 st_fdma_prep_dma_cyclic( struct dma_chan *chan, dma_addr_t buf_addr, size_t len, size_t period_len, enum dma_transfer_direction direction, unsigned long flags) st_fdma_prep_dma_cyclic() argument
H A Dmxs-dma.c575 size_t period_len, enum dma_transfer_direction direction, in mxs_dma_prep_dma_cyclic()
580 u32 num_periods = buf_len / period_len; in mxs_dma_prep_dma_cyclic()
597 if (period_len > MAX_XFER_BYTES) { in mxs_dma_prep_dma_cyclic()
600 period_len, MAX_XFER_BYTES); in mxs_dma_prep_dma_cyclic()
613 ccw->xfer_bytes = period_len; in mxs_dma_prep_dma_cyclic()
624 dma_addr += period_len; in mxs_dma_prep_dma_cyclic()
625 buf += period_len; in mxs_dma_prep_dma_cyclic()
573 mxs_dma_prep_dma_cyclic( struct dma_chan *chan, dma_addr_t dma_addr, size_t buf_len, size_t period_len, enum dma_transfer_direction direction, unsigned long flags) mxs_dma_prep_dma_cyclic() argument
H A Dat_hdmac.c1397 size_t period_len) in atc_dma_cyclic_check_values()
1399 if (period_len > (ATC_BTSIZE_MAX << reg_width)) in atc_dma_cyclic_check_values()
1401 if (unlikely(period_len & ((1 << reg_width) - 1))) in atc_dma_cyclic_check_values()
1418 unsigned int reg_width, size_t period_len, in atc_dma_cyclic_fill_desc()
1435 lli->saddr = buf_addr + (period_len * i); in atc_dma_cyclic_fill_desc()
1449 lli->daddr = buf_addr + (period_len * i); in atc_dma_cyclic_fill_desc()
1467 period_len >> reg_width; in atc_dma_cyclic_fill_desc()
1468 desc->sg[i].len = period_len; in atc_dma_cyclic_fill_desc()
1478 * @period_len: number of bytes for each period
1484 size_t period_len, enu in atc_prep_dma_cyclic()
1396 atc_dma_cyclic_check_values(unsigned int reg_width, dma_addr_t buf_addr, size_t period_len) atc_dma_cyclic_check_values() argument
1416 atc_dma_cyclic_fill_desc(struct dma_chan *chan, struct at_desc *desc, unsigned int i, dma_addr_t buf_addr, unsigned int reg_width, size_t period_len, enum dma_transfer_direction direction) atc_dma_cyclic_fill_desc() argument
1483 atc_prep_dma_cyclic(struct dma_chan *chan, dma_addr_t buf_addr, size_t buf_len, size_t period_len, enum dma_transfer_direction direction, unsigned long flags) atc_prep_dma_cyclic() argument
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H A Dstm32-dma.c1159 size_t period_len, enum dma_transfer_direction direction, in stm32_dma_prep_dma_cyclic()
1168 if (!buf_len || !period_len) { in stm32_dma_prep_dma_cyclic()
1178 if (buf_len % period_len) { in stm32_dma_prep_dma_cyclic()
1179 dev_err(chan2dev(chan), "buf_len not multiple of period_len\n"); in stm32_dma_prep_dma_cyclic()
1194 ret = stm32_dma_set_xfer_param(chan, direction, &buswidth, period_len, in stm32_dma_prep_dma_cyclic()
1199 nb_data_items = period_len / buswidth; in stm32_dma_prep_dma_cyclic()
1206 if (buf_len == period_len) { in stm32_dma_prep_dma_cyclic()
1216 num_periods = buf_len / period_len; in stm32_dma_prep_dma_cyclic()
1223 desc->sg_req[i].len = period_len; in stm32_dma_prep_dma_cyclic()
1232 desc->sg_req[i].chan_reg.dma_sm1ar += period_len; in stm32_dma_prep_dma_cyclic()
1157 stm32_dma_prep_dma_cyclic( struct dma_chan *c, dma_addr_t buf_addr, size_t buf_len, size_t period_len, enum dma_transfer_direction direction, unsigned long flags) stm32_dma_prep_dma_cyclic() argument
1327 u32 dma_scr, dma_smar, id, period_len; stm32_dma_is_current_sg() local
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H A Dimx-sdma.c378 * @period_len: period length, used in cyclic.
390 unsigned int period_len; member
881 bd->mode.count = desc->period_len; in sdma_update_channel_loop()
1689 size_t period_len, enum dma_transfer_direction direction, in sdma_prep_dma_cyclic()
1702 num_periods = buf_len / period_len; in sdma_prep_dma_cyclic()
1710 desc->period_len = period_len; in sdma_prep_dma_cyclic()
1714 if (period_len > SDMA_BD_MAX_CNT) { in sdma_prep_dma_cyclic()
1716 channel, period_len, SDMA_BD_MAX_CNT); in sdma_prep_dma_cyclic()
1729 bd->mode.count = period_len; in sdma_prep_dma_cyclic()
1687 sdma_prep_dma_cyclic( struct dma_chan *chan, dma_addr_t dma_addr, size_t buf_len, size_t period_len, enum dma_transfer_direction direction, unsigned long flags) sdma_prep_dma_cyclic() argument
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H A Dmmp_pdma.c606 dma_addr_t buf_addr, size_t len, size_t period_len, in mmp_pdma_prep_dma_cyclic()
614 if (!dchan || !len || !period_len) in mmp_pdma_prep_dma_cyclic()
617 /* the buffer length must be a multiple of period_len */ in mmp_pdma_prep_dma_cyclic()
618 if (len % period_len != 0) in mmp_pdma_prep_dma_cyclic()
621 if (period_len > PDMA_MAX_DESC_BYTES) in mmp_pdma_prep_dma_cyclic()
652 (DCMD_LENGTH & period_len)); in mmp_pdma_prep_dma_cyclic()
665 len -= period_len; in mmp_pdma_prep_dma_cyclic()
668 dma_src += period_len; in mmp_pdma_prep_dma_cyclic()
670 dma_dst += period_len; in mmp_pdma_prep_dma_cyclic()
605 mmp_pdma_prep_dma_cyclic(struct dma_chan *dchan, dma_addr_t buf_addr, size_t len, size_t period_len, enum dma_transfer_direction direction, unsigned long flags) mmp_pdma_prep_dma_cyclic() argument
H A Dstm32-mdma.c843 size_t buf_len, size_t period_len, in stm32_mdma_prep_dma_cyclic()
867 if (!buf_len || !period_len || period_len > STM32_MDMA_MAX_BLOCK_LEN) { in stm32_mdma_prep_dma_cyclic()
872 if (buf_len % period_len) { in stm32_mdma_prep_dma_cyclic()
873 dev_err(chan2dev(chan), "buf_len not multiple of period_len\n"); in stm32_mdma_prep_dma_cyclic()
877 count = buf_len / period_len; in stm32_mdma_prep_dma_cyclic()
887 &ctbr, src_addr, period_len); in stm32_mdma_prep_dma_cyclic()
893 &ctbr, dst_addr, period_len); in stm32_mdma_prep_dma_cyclic()
909 src_addr = buf_addr + i * period_len; in stm32_mdma_prep_dma_cyclic()
912 dst_addr += period_len; in stm32_mdma_prep_dma_cyclic()
842 stm32_mdma_prep_dma_cyclic(struct dma_chan *c, dma_addr_t buf_addr, size_t buf_len, size_t period_len, enum dma_transfer_direction direction, unsigned long flags) stm32_mdma_prep_dma_cyclic() argument
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/kernel/linux/linux-6.6/sound/soc/loongson/
H A Dloongson_dma.c143 size_t period_len = params_period_bytes(params); in loongson_pcm_hw_params() local
149 if (buf_len % period_len) { in loongson_pcm_hw_params()
154 num_periods = buf_len / period_len; in loongson_pcm_hw_params()
182 desc->length = period_len >> 2; in loongson_pcm_hw_params()
186 mem_addr += period_len; in loongson_pcm_hw_params()
/kernel/linux/linux-5.10/drivers/dma/sh/
H A Dshdma-base.c693 size_t period_len, enum dma_transfer_direction direction, in shdma_prep_dma_cyclic()
700 unsigned int sg_len = buf_len / period_len; in shdma_prep_dma_cyclic()
718 if (slave_id < 0 || (buf_len < period_len)) { in shdma_prep_dma_cyclic()
720 "%s: bad parameter: buf_len=%zu, period_len=%zu, id=%d\n", in shdma_prep_dma_cyclic()
721 __func__, buf_len, period_len, slave_id); in shdma_prep_dma_cyclic()
738 dma_addr_t src = buf_addr + (period_len * i); in shdma_prep_dma_cyclic()
740 sg_set_page(&sgl[i], pfn_to_page(PFN_DOWN(src)), period_len, in shdma_prep_dma_cyclic()
743 sg_dma_len(&sgl[i]) = period_len; in shdma_prep_dma_cyclic()
691 shdma_prep_dma_cyclic( struct dma_chan *chan, dma_addr_t buf_addr, size_t buf_len, size_t period_len, enum dma_transfer_direction direction, unsigned long flags) shdma_prep_dma_cyclic() argument
/kernel/linux/linux-5.10/drivers/staging/ralink-gdma/
H A Dralink-gdma.c606 size_t period_len, enum dma_transfer_direction direction, in gdma_dma_prep_dma_cyclic()
613 if (buf_len % period_len) in gdma_dma_prep_dma_cyclic()
616 if (period_len > GDMA_REG_CTRL0_TX_MASK) { in gdma_dma_prep_dma_cyclic()
618 period_len); in gdma_dma_prep_dma_cyclic()
622 num_periods = buf_len / period_len; in gdma_dma_prep_dma_cyclic()
640 desc->sg[i].len = period_len; in gdma_dma_prep_dma_cyclic()
641 buf_addr += period_len; in gdma_dma_prep_dma_cyclic()
604 gdma_dma_prep_dma_cyclic( struct dma_chan *c, dma_addr_t buf_addr, size_t buf_len, size_t period_len, enum dma_transfer_direction direction, unsigned long flags) gdma_dma_prep_dma_cyclic() argument
/kernel/linux/linux-6.6/drivers/dma/sh/
H A Dshdma-base.c693 size_t period_len, enum dma_transfer_direction direction, in shdma_prep_dma_cyclic()
700 unsigned int sg_len = buf_len / period_len; in shdma_prep_dma_cyclic()
718 if (slave_id < 0 || (buf_len < period_len)) { in shdma_prep_dma_cyclic()
720 "%s: bad parameter: buf_len=%zu, period_len=%zu, id=%d\n", in shdma_prep_dma_cyclic()
721 __func__, buf_len, period_len, slave_id); in shdma_prep_dma_cyclic()
738 dma_addr_t src = buf_addr + (period_len * i); in shdma_prep_dma_cyclic()
740 sg_set_page(&sgl[i], pfn_to_page(PFN_DOWN(src)), period_len, in shdma_prep_dma_cyclic()
743 sg_dma_len(&sgl[i]) = period_len; in shdma_prep_dma_cyclic()
691 shdma_prep_dma_cyclic( struct dma_chan *chan, dma_addr_t buf_addr, size_t buf_len, size_t period_len, enum dma_transfer_direction direction, unsigned long flags) shdma_prep_dma_cyclic() argument

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