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Searched refs:period_len (Results 1 – 25 of 40) sorted by relevance

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/Linux-v6.6/drivers/dma/
Dmmp_tdma.c123 size_t period_len; member
424 size_t period_len, enum dma_transfer_direction direction, in mmp_tdma_prep_dma_cyclic() argument
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()
Dbcm2835-dma.c225 size_t period_len, in bcm2835_dma_create_cb_set_length() argument
235 if (!period_len) 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()
304 size_t period_len, gfp_t gfp) in bcm2835_dma_create_cb_chain() argument
348 len, period_len, &total_len, in bcm2835_dma_create_cb_chain()
694 size_t period_len, enum dma_transfer_direction direction, in bcm2835_dma_prep_dma_cyclic() argument
721 period_len = buf_len; in bcm2835_dma_prep_dma_cyclic()
727 if (buf_len % period_len) in bcm2835_dma_prep_dma_cyclic()
730 __func__, buf_len, period_len); in bcm2835_dma_prep_dma_cyclic()
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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() argument
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()
655 desc->period_len = period_len; in tegra_adma_prep_dma_cyclic()
656 desc->num_periods = buf_len / period_len; in tegra_adma_prep_dma_cyclic()
Dapple-admac.c140 size_t period_len; member
250 size_t period_len, enum dma_transfer_direction direction, in admac_prep_dma_cyclic() argument
268 adtx->period_len = period_len; in admac_prep_dma_cyclic()
291 WARN_ON_ONCE(addr + tx->period_len > tx->buf_end); in admac_cyclic_write_one_desc()
294 channo, &addr, tx->period_len, FLAG_DESC_NOTIFY); in admac_cyclic_write_one_desc()
298 writel_relaxed(tx->period_len, ad->base + REG_DESC_WRITE(channo)); in admac_cyclic_write_one_desc()
301 tx->submitted_pos += tx->period_len; in admac_cyclic_write_one_desc()
365 pos = adtx->reclaimed_pos + adtx->period_len * (nreports + 1) - residue2; in admac_cyclic_read_residue()
657 tx->reclaimed_pos += nreports * tx->period_len; in admac_handle_status_desc_done()
Ddma-axi-dmac.c498 unsigned int num_periods, unsigned int period_len, in axi_dmac_fill_linear_sg() argument
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() argument
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, desc->sg); in axi_dmac_prep_dma_cyclic()
Dmxs-dma.c575 size_t period_len, enum dma_transfer_direction direction, in mxs_dma_prep_dma_cyclic() argument
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()
Dst_fdma.c449 size_t period_len, enum dma_transfer_direction direction, in st_fdma_prep_dma_cyclic() argument
460 if (!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()
Dstm32-dma.c1159 size_t period_len, enum dma_transfer_direction direction, in stm32_dma_prep_dma_cyclic() argument
1168 if (!buf_len || !period_len) { in stm32_dma_prep_dma_cyclic()
1178 if (buf_len % period_len) { 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()
1235 buf_addr += period_len; in stm32_dma_prep_dma_cyclic()
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Dmmp_pdma.c606 dma_addr_t buf_addr, size_t len, size_t period_len, in mmp_pdma_prep_dma_cyclic() argument
614 if (!dchan || !len || !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()
Dat_hdmac.c1397 size_t period_len) in atc_dma_cyclic_check_values() argument
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() argument
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()
1484 size_t period_len, enum dma_transfer_direction direction, in atc_prep_dma_cyclic() argument
1493 unsigned int periods = buf_len / period_len; in atc_prep_dma_cyclic()
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Dpxa_dma.c1013 dma_addr_t buf_addr, size_t len, size_t period_len, in pxad_prep_dma_cyclic() argument
1023 if (!dchan || !len || !period_len) in pxad_prep_dma_cyclic()
1031 if (len % period_len != 0 || period_len > PDMA_MAX_DESC_BYTES || in pxad_prep_dma_cyclic()
1032 !IS_ALIGNED(period_len, 1 << PDMA_ALIGNMENT)) in pxad_prep_dma_cyclic()
1036 dcmd |= PXA_DCMD_ENDIRQEN | (PXA_DCMD_LENGTH & period_len); in pxad_prep_dma_cyclic()
1039 __func__, (unsigned long)buf_addr, len, period_len, dir, flags); in pxad_prep_dma_cyclic()
1041 nb_desc = DIV_ROUND_UP(period_len, PDMA_MAX_DESC_BYTES); in pxad_prep_dma_cyclic()
1042 nb_desc *= DIV_ROUND_UP(len, period_len); in pxad_prep_dma_cyclic()
1056 dma += period_len; in pxad_prep_dma_cyclic()
1057 len -= period_len; in pxad_prep_dma_cyclic()
Dimx-sdma.c390 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() argument
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()
1743 i, period_len, (u64)dma_addr, in sdma_prep_dma_cyclic()
1749 dma_addr += period_len; in sdma_prep_dma_cyclic()
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Dstm32-mdma.c843 size_t buf_len, size_t period_len, in stm32_mdma_prep_dma_cyclic() argument
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()
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()
916 src_addr += period_len; in stm32_mdma_prep_dma_cyclic()
917 dst_addr = buf_addr + i * period_len; in stm32_mdma_prep_dma_cyclic()
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Dsun4i-dma.c673 size_t period_len, enum dma_transfer_direction dir, in sun4i_dma_prep_dma_cyclic() argument
754 if (vchan->is_dedicated || period_len <= SUN4I_NDMA_MAX_SEG_SIZE / 2) { in sun4i_dma_prep_dma_cyclic()
755 period_len *= 2; in sun4i_dma_prep_dma_cyclic()
759 nr_periods = DIV_ROUND_UP(len, period_len); in sun4i_dma_prep_dma_cyclic()
762 offset = i * period_len; in sun4i_dma_prep_dma_cyclic()
763 plength = min((len - offset), period_len); in sun4i_dma_prep_dma_cyclic()
Dk3dma.c589 size_t buf_len, size_t period_len, in k3_dma_prep_dma_cyclic() argument
603 buf_len, period_len, (int)dir); in k3_dma_prep_dma_cyclic()
620 if (period_len < modulo) in k3_dma_prep_dma_cyclic()
621 modulo = period_len; in k3_dma_prep_dma_cyclic()
634 if (since >= period_len) { in k3_dma_prep_dma_cyclic()
637 since -= period_len; in k3_dma_prep_dma_cyclic()
Ddma-jz4780.c408 size_t period_len, enum dma_transfer_direction direction, in jz4780_dma_prep_dma_cyclic() argument
416 if (buf_len % period_len) in jz4780_dma_prep_dma_cyclic()
419 periods = buf_len / period_len; in jz4780_dma_prep_dma_cyclic()
427 period_len, direction); in jz4780_dma_prep_dma_cyclic()
433 buf_addr += period_len; in jz4780_dma_prep_dma_cyclic()
Dep93xx_dma.c1118 size_t buf_len, size_t period_len, in ep93xx_dma_prep_dma_cyclic() argument
1137 if (period_len > DMA_MAX_CHAN_BYTES) { in ep93xx_dma_prep_dma_cyclic()
1139 period_len); in ep93xx_dma_prep_dma_cyclic()
1147 for (offset = 0; offset < buf_len; offset += period_len) { in ep93xx_dma_prep_dma_cyclic()
1162 desc->size = period_len; in ep93xx_dma_prep_dma_cyclic()
Dowl-dma.c983 size_t period_len, in owl_prep_dma_cyclic() argument
993 unsigned int periods = buf_len / period_len; in owl_prep_dma_cyclic()
1011 src = buf_addr + (period_len * i); in owl_prep_dma_cyclic()
1015 dst = buf_addr + (period_len * i); in owl_prep_dma_cyclic()
1018 ret = owl_dma_cfg_lli(vchan, lli, src, dst, period_len, in owl_prep_dma_cyclic()
Dimx-dma.c849 size_t period_len, enum dma_transfer_direction direction, in imxdma_prep_dma_cyclic() argument
856 unsigned int periods = buf_len / period_len; in imxdma_prep_dma_cyclic()
859 __func__, imxdmac->channel, buf_len, period_len); in imxdma_prep_dma_cyclic()
880 sg_dma_len(&imxdmac->sg_list[i]) = period_len; in imxdma_prep_dma_cyclic()
881 dma_addr += period_len; in imxdma_prep_dma_cyclic()
Dfsl-edma-common.c575 size_t period_len, enum dma_transfer_direction direction, in fsl_edma_prep_dma_cyclic() argument
592 sg_len = buf_len / period_len; in fsl_edma_prep_dma_cyclic()
612 iter = period_len / nbytes; in fsl_edma_prep_dma_cyclic()
642 dma_buf_next += period_len; in fsl_edma_prep_dma_cyclic()
/Linux-v6.6/sound/soc/loongson/
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()
/Linux-v6.6/drivers/dma/sh/
Dshdma-base.c693 size_t period_len, enum dma_transfer_direction direction, in shdma_prep_dma_cyclic() argument
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()
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()
Drcar-dmac.c1225 size_t buf_len, size_t period_len, in rcar_dmac_prep_dma_cyclic() argument
1235 if (rchan->mid_rid < 0 || buf_len < period_len) { in rcar_dmac_prep_dma_cyclic()
1238 __func__, buf_len, period_len, rchan->mid_rid); in rcar_dmac_prep_dma_cyclic()
1245 sg_len = buf_len / period_len; in rcar_dmac_prep_dma_cyclic()
1264 dma_addr_t src = buf_addr + (period_len * i); in rcar_dmac_prep_dma_cyclic()
1266 sg_set_page(&sgl[i], pfn_to_page(PFN_DOWN(src)), period_len, in rcar_dmac_prep_dma_cyclic()
1269 sg_dma_len(&sgl[i]) = period_len; in rcar_dmac_prep_dma_cyclic()
/Linux-v6.6/drivers/dma/ti/
Dedma.c1298 size_t period_len, enum dma_transfer_direction direction, in edma_prep_dma_cyclic() argument
1310 if (unlikely(!echan || !buf_len || !period_len)) in edma_prep_dma_cyclic()
1333 if (unlikely(buf_len % period_len)) { in edma_prep_dma_cyclic()
1338 nslots = (buf_len / period_len) + 1; in edma_prep_dma_cyclic()
1355 if (burst == period_len) { in edma_prep_dma_cyclic()
1356 period_len = buf_len; in edma_prep_dma_cyclic()
1375 __func__, echan->ch_num, nslots, period_len, buf_len); in edma_prep_dma_cyclic()
1397 dst_addr, burst, dev_width, period_len, in edma_prep_dma_cyclic()
1405 dst_addr += period_len; in edma_prep_dma_cyclic()
1407 src_addr += period_len; in edma_prep_dma_cyclic()
/Linux-v6.6/drivers/dma/dw-axi-dmac/
Ddw-axi-dmac-platform.c718 size_t buf_len, size_t period_len, in dw_axi_dma_chan_prep_cyclic() argument
735 num_periods = buf_len / period_len; in dw_axi_dma_chan_prep_cyclic()
741 num_segments = DIV_ROUND_UP(period_len, axi_block_len); in dw_axi_dma_chan_prep_cyclic()
742 segment_len = DIV_ROUND_UP(period_len, num_segments); in dw_axi_dma_chan_prep_cyclic()
754 desc->period_len = period_len; in dw_axi_dma_chan_prep_cyclic()
1084 if (((hw_desc->len * (i + 1)) % desc->period_len) == 0) in axi_chan_block_xfer_complete()

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