Home
last modified time | relevance | path

Searched refs:period_len (Results 1 – 25 of 36) sorted by relevance

12

/Linux-v4.19/drivers/dma/
Dmmp_tdma.c126 size_t period_len; member
421 size_t period_len, enum dma_transfer_direction direction, in mmp_tdma_prep_dma_cyclic() argument
426 int num_periods = buf_len / period_len; in mmp_tdma_prep_dma_cyclic()
432 if (period_len > TDMA_MAX_XFER_BYTES) { in mmp_tdma_prep_dma_cyclic()
435 period_len, TDMA_MAX_XFER_BYTES); in mmp_tdma_prep_dma_cyclic()
461 desc->byte_cnt = period_len; in mmp_tdma_prep_dma_cyclic()
462 dma_addr += period_len; in mmp_tdma_prep_dma_cyclic()
463 buf += period_len; in mmp_tdma_prep_dma_cyclic()
472 tdmac->period_len = period_len; in mmp_tdma_prep_dma_cyclic()
Dtegra210-adma.c112 size_t period_len; member
392 return desc->buf_len - (periods_remaining * desc->period_len); in tegra_adma_get_residue()
526 ch_regs->tc = desc->period_len & ADMA_CH_TC_COUNT_MASK; in tegra_adma_set_xfer_params()
533 size_t period_len, enum dma_transfer_direction direction, in tegra_adma_prep_dma_cyclic() argument
539 if (!buf_len || !period_len || period_len > ADMA_CH_TC_COUNT_MASK) { in tegra_adma_prep_dma_cyclic()
544 if (buf_len % period_len) { in tegra_adma_prep_dma_cyclic()
559 desc->period_len = period_len; in tegra_adma_prep_dma_cyclic()
560 desc->num_periods = buf_len / period_len; in tegra_adma_prep_dma_cyclic()
Dbcm2835-dma.c232 size_t period_len, in bcm2835_dma_create_cb_set_length() argument
242 if (!period_len) in bcm2835_dma_create_cb_set_length()
254 if (*total_len + control_block->length < period_len) { in bcm2835_dma_create_cb_set_length()
261 control_block->length = period_len - *total_len; in bcm2835_dma_create_cb_set_length()
311 size_t period_len, gfp_t gfp) in bcm2835_dma_create_cb_chain() argument
356 len, period_len, &total_len, in bcm2835_dma_create_cb_chain()
702 size_t period_len, enum dma_transfer_direction direction, in bcm2835_dma_prep_dma_cyclic() argument
729 if (buf_len % period_len) in bcm2835_dma_prep_dma_cyclic()
732 __func__, buf_len, period_len); in bcm2835_dma_prep_dma_cyclic()
754 DIV_ROUND_UP(buf_len, period_len) * in bcm2835_dma_prep_dma_cyclic()
[all …]
Dmxs-dma.c592 size_t period_len, enum dma_transfer_direction direction, in mxs_dma_prep_dma_cyclic() argument
597 u32 num_periods = buf_len / period_len; in mxs_dma_prep_dma_cyclic()
614 if (period_len > MAX_XFER_BYTES) { in mxs_dma_prep_dma_cyclic()
617 period_len, MAX_XFER_BYTES); in mxs_dma_prep_dma_cyclic()
630 ccw->xfer_bytes = period_len; in mxs_dma_prep_dma_cyclic()
641 dma_addr += period_len; in mxs_dma_prep_dma_cyclic()
642 buf += period_len; in mxs_dma_prep_dma_cyclic()
Dat_hdmac.c1213 size_t period_len) in atc_dma_cyclic_check_values() argument
1215 if (period_len > (ATC_BTSIZE_MAX << reg_width)) in atc_dma_cyclic_check_values()
1217 if (unlikely(period_len & ((1 << reg_width) - 1))) in atc_dma_cyclic_check_values()
1234 unsigned int reg_width, size_t period_len, in atc_dma_cyclic_fill_desc() argument
1246 | period_len >> reg_width; in atc_dma_cyclic_fill_desc()
1250 desc->lli.saddr = buf_addr + (period_len * period_index); in atc_dma_cyclic_fill_desc()
1258 desc->len = period_len; in atc_dma_cyclic_fill_desc()
1263 desc->lli.daddr = buf_addr + (period_len * period_index); in atc_dma_cyclic_fill_desc()
1270 desc->len = period_len; in atc_dma_cyclic_fill_desc()
1291 size_t period_len, enum dma_transfer_direction direction, in atc_prep_dma_cyclic() argument
[all …]
Dst_fdma.c455 size_t period_len, enum dma_transfer_direction direction, in st_fdma_prep_dma_cyclic() argument
466 if (!period_len) in st_fdma_prep_dma_cyclic()
475 if (len % period_len != 0) { in st_fdma_prep_dma_cyclic()
480 sg_len = len / period_len; in st_fdma_prep_dma_cyclic()
501 hw_node->saddr = buf_addr + (i * period_len); in st_fdma_prep_dma_cyclic()
503 hw_node->daddr = buf_addr + (i * period_len); in st_fdma_prep_dma_cyclic()
505 hw_node->nbytes = period_len; in st_fdma_prep_dma_cyclic()
506 hw_node->generic.length = period_len; in st_fdma_prep_dma_cyclic()
Ddma-axi-dmac.c422 size_t period_len, enum dma_transfer_direction direction, in axi_dmac_prep_dma_cyclic() argument
436 if (period_len == 0 || buf_len % period_len) in axi_dmac_prep_dma_cyclic()
439 num_periods = buf_len / period_len; in axi_dmac_prep_dma_cyclic()
450 desc->sg[i].x_len = period_len; in axi_dmac_prep_dma_cyclic()
452 buf_addr += period_len; in axi_dmac_prep_dma_cyclic()
Ddma-jz4740.c415 size_t period_len, enum dma_transfer_direction direction, in jz4740_dma_prep_dma_cyclic() argument
422 if (buf_len % period_len) in jz4740_dma_prep_dma_cyclic()
425 num_periods = buf_len / period_len; in jz4740_dma_prep_dma_cyclic()
433 desc->sg[i].len = period_len; in jz4740_dma_prep_dma_cyclic()
434 buf_addr += period_len; in jz4740_dma_prep_dma_cyclic()
Dmmp_pdma.c603 dma_addr_t buf_addr, size_t len, size_t period_len, in mmp_pdma_prep_dma_cyclic() argument
611 if (!dchan || !len || !period_len) in mmp_pdma_prep_dma_cyclic()
615 if (len % period_len != 0) in mmp_pdma_prep_dma_cyclic()
618 if (period_len > PDMA_MAX_DESC_BYTES) in mmp_pdma_prep_dma_cyclic()
648 (DCMD_LENGTH & period_len)); in mmp_pdma_prep_dma_cyclic()
661 len -= period_len; in mmp_pdma_prep_dma_cyclic()
664 dma_src += period_len; in mmp_pdma_prep_dma_cyclic()
666 dma_dst += period_len; in mmp_pdma_prep_dma_cyclic()
Dimx-sdma.c323 unsigned int period_len; member
784 bd->mode.count = desc->period_len; in sdma_update_channel_loop()
1490 size_t period_len, enum dma_transfer_direction direction, in sdma_prep_dma_cyclic() argument
1495 int num_periods = buf_len / period_len; in sdma_prep_dma_cyclic()
1506 desc->period_len = period_len; in sdma_prep_dma_cyclic()
1510 if (period_len > SDMA_BD_MAX_CNT) { in sdma_prep_dma_cyclic()
1512 channel, period_len, SDMA_BD_MAX_CNT); in sdma_prep_dma_cyclic()
1522 bd->mode.count = period_len; in sdma_prep_dma_cyclic()
1536 i, period_len, (u64)dma_addr, in sdma_prep_dma_cyclic()
1542 dma_addr += period_len; in sdma_prep_dma_cyclic()
[all …]
Dpxa_dma.c1071 dma_addr_t buf_addr, size_t len, size_t period_len, in pxad_prep_dma_cyclic() argument
1081 if (!dchan || !len || !period_len) in pxad_prep_dma_cyclic()
1089 if (len % period_len != 0 || period_len > PDMA_MAX_DESC_BYTES || in pxad_prep_dma_cyclic()
1090 !IS_ALIGNED(period_len, 1 << PDMA_ALIGNMENT)) in pxad_prep_dma_cyclic()
1094 dcmd |= PXA_DCMD_ENDIRQEN | (PXA_DCMD_LENGTH & period_len); in pxad_prep_dma_cyclic()
1097 __func__, (unsigned long)buf_addr, len, period_len, dir, flags); in pxad_prep_dma_cyclic()
1099 nb_desc = DIV_ROUND_UP(period_len, PDMA_MAX_DESC_BYTES); in pxad_prep_dma_cyclic()
1100 nb_desc *= DIV_ROUND_UP(len, period_len); in pxad_prep_dma_cyclic()
1114 dma += period_len; in pxad_prep_dma_cyclic()
1115 len -= period_len; in pxad_prep_dma_cyclic()
Dstm32-dma.c906 size_t period_len, enum dma_transfer_direction direction, in stm32_dma_prep_dma_cyclic() argument
915 if (!buf_len || !period_len) { in stm32_dma_prep_dma_cyclic()
925 if (buf_len % period_len) { in stm32_dma_prep_dma_cyclic()
941 ret = stm32_dma_set_xfer_param(chan, direction, &buswidth, period_len); in stm32_dma_prep_dma_cyclic()
945 nb_data_items = period_len / buswidth; in stm32_dma_prep_dma_cyclic()
952 if (buf_len == period_len) in stm32_dma_prep_dma_cyclic()
960 num_periods = buf_len / period_len; in stm32_dma_prep_dma_cyclic()
967 desc->sg_req[i].len = period_len; in stm32_dma_prep_dma_cyclic()
976 buf_addr += period_len; in stm32_dma_prep_dma_cyclic()
Ddma-jz4780.c353 size_t period_len, enum dma_transfer_direction direction, in jz4780_dma_prep_dma_cyclic() argument
361 if (buf_len % period_len) in jz4780_dma_prep_dma_cyclic()
364 periods = buf_len / period_len; in jz4780_dma_prep_dma_cyclic()
372 period_len, direction); in jz4780_dma_prep_dma_cyclic()
378 buf_addr += period_len; in jz4780_dma_prep_dma_cyclic()
Dstm32-mdma.c832 size_t buf_len, size_t period_len, in stm32_mdma_prep_dma_cyclic() argument
855 if (!buf_len || !period_len || period_len > STM32_MDMA_MAX_BLOCK_LEN) { in stm32_mdma_prep_dma_cyclic()
860 if (buf_len % period_len) { in stm32_mdma_prep_dma_cyclic()
865 count = buf_len / period_len; in stm32_mdma_prep_dma_cyclic()
875 &ctbr, src_addr, period_len); in stm32_mdma_prep_dma_cyclic()
881 &ctbr, dst_addr, period_len); in stm32_mdma_prep_dma_cyclic()
897 src_addr = buf_addr + i * period_len; in stm32_mdma_prep_dma_cyclic()
901 dst_addr = buf_addr + i * period_len; in stm32_mdma_prep_dma_cyclic()
905 dst_addr, period_len, ctcr, ctbr, in stm32_mdma_prep_dma_cyclic()
Dzx_dma.c608 size_t period_len, enum dma_transfer_direction dir, in zx_dma_prep_dma_cyclic() argument
614 int num_periods = buf_len / period_len; in zx_dma_prep_dma_cyclic()
617 if (period_len > DMA_MAX_SIZE) { in zx_dma_prep_dma_cyclic()
638 zx_dma_fill_desc(ds, dst, src, period_len, num++, in zx_dma_prep_dma_cyclic()
640 dma_addr += period_len; in zx_dma_prep_dma_cyclic()
641 buf += period_len; in zx_dma_prep_dma_cyclic()
Dk3dma.c576 size_t buf_len, size_t period_len, in k3_dma_prep_dma_cyclic() argument
590 buf_len, period_len, (int)dir); in k3_dma_prep_dma_cyclic()
606 if (period_len < modulo) in k3_dma_prep_dma_cyclic()
607 modulo = period_len; in k3_dma_prep_dma_cyclic()
620 if (since >= period_len) { in k3_dma_prep_dma_cyclic()
623 since -= period_len; in k3_dma_prep_dma_cyclic()
Dep93xx_dma.c1114 size_t buf_len, size_t period_len, in ep93xx_dma_prep_dma_cyclic() argument
1133 if (period_len > DMA_MAX_CHAN_BYTES) { in ep93xx_dma_prep_dma_cyclic()
1135 period_len); in ep93xx_dma_prep_dma_cyclic()
1141 for (offset = 0; offset < buf_len; offset += period_len) { in ep93xx_dma_prep_dma_cyclic()
1156 desc->size = period_len; in ep93xx_dma_prep_dma_cyclic()
Dimx-dma.c857 size_t period_len, enum dma_transfer_direction direction, in imxdma_prep_dma_cyclic() argument
864 unsigned int periods = buf_len / period_len; in imxdma_prep_dma_cyclic()
867 __func__, imxdmac->channel, buf_len, period_len); in imxdma_prep_dma_cyclic()
888 sg_dma_len(&imxdmac->sg_list[i]) = period_len; in imxdma_prep_dma_cyclic()
889 dma_addr += period_len; in imxdma_prep_dma_cyclic()
Dimg-mdc-dma.c371 size_t period_len, enum dma_transfer_direction dir, in mdc_prep_dma_cyclic() argument
380 if (!buf_len && !period_len) in mdc_prep_dma_cyclic()
395 mdesc->list_period_len = DIV_ROUND_UP(period_len, in mdc_prep_dma_cyclic()
399 size_t remainder = min(period_len, buf_len); in mdc_prep_dma_cyclic()
Dsun4i-dma.c666 size_t period_len, enum dma_transfer_direction dir, in sun4i_dma_prep_dma_cyclic() argument
743 nr_periods = DIV_ROUND_UP(len / period_len, 2); in sun4i_dma_prep_dma_cyclic()
746 offset = i * period_len * 2; in sun4i_dma_prep_dma_cyclic()
747 plength = min((len - offset), (period_len * 2)); in sun4i_dma_prep_dma_cyclic()
/Linux-v4.19/drivers/staging/mt7621-dma/
Dralink-gdma.c616 size_t period_len, enum dma_transfer_direction direction, in gdma_dma_prep_dma_cyclic() argument
623 if (buf_len % period_len) in gdma_dma_prep_dma_cyclic()
626 if (period_len > GDMA_REG_CTRL0_TX_MASK) { in gdma_dma_prep_dma_cyclic()
628 period_len); in gdma_dma_prep_dma_cyclic()
632 num_periods = buf_len / period_len; in gdma_dma_prep_dma_cyclic()
650 desc->sg[i].len = period_len; in gdma_dma_prep_dma_cyclic()
651 buf_addr += period_len; in gdma_dma_prep_dma_cyclic()
/Linux-v4.19/drivers/dma/sh/
Dshdma-base.c696 size_t period_len, enum dma_transfer_direction direction, in shdma_prep_dma_cyclic() argument
703 unsigned int sg_len = buf_len / period_len; in shdma_prep_dma_cyclic()
721 if (slave_id < 0 || (buf_len < period_len)) { in shdma_prep_dma_cyclic()
724 __func__, buf_len, period_len, slave_id); in shdma_prep_dma_cyclic()
741 dma_addr_t src = buf_addr + (period_len * i); in shdma_prep_dma_cyclic()
743 sg_set_page(&sgl[i], pfn_to_page(PFN_DOWN(src)), period_len, in shdma_prep_dma_cyclic()
746 sg_dma_len(&sgl[i]) = period_len; in shdma_prep_dma_cyclic()
Drcar-dmac.c1185 size_t buf_len, size_t period_len, in rcar_dmac_prep_dma_cyclic() argument
1195 if (rchan->mid_rid < 0 || buf_len < period_len) { in rcar_dmac_prep_dma_cyclic()
1198 __func__, buf_len, period_len, rchan->mid_rid); in rcar_dmac_prep_dma_cyclic()
1205 sg_len = buf_len / period_len; in rcar_dmac_prep_dma_cyclic()
1224 dma_addr_t src = buf_addr + (period_len * i); in rcar_dmac_prep_dma_cyclic()
1226 sg_set_page(&sgl[i], pfn_to_page(PFN_DOWN(src)), period_len, in rcar_dmac_prep_dma_cyclic()
1229 sg_dma_len(&sgl[i]) = period_len; in rcar_dmac_prep_dma_cyclic()
/Linux-v4.19/drivers/dma/ti/
Dedma.c1250 size_t period_len, enum dma_transfer_direction direction, in edma_prep_dma_cyclic() argument
1262 if (unlikely(!echan || !buf_len || !period_len)) in edma_prep_dma_cyclic()
1285 if (unlikely(buf_len % period_len)) { in edma_prep_dma_cyclic()
1290 nslots = (buf_len / period_len) + 1; in edma_prep_dma_cyclic()
1307 if (burst == period_len) { in edma_prep_dma_cyclic()
1308 period_len = buf_len; in edma_prep_dma_cyclic()
1327 __func__, echan->ch_num, nslots, period_len, buf_len); in edma_prep_dma_cyclic()
1349 dst_addr, burst, dev_width, period_len, in edma_prep_dma_cyclic()
1357 dst_addr += period_len; in edma_prep_dma_cyclic()
1359 src_addr += period_len; in edma_prep_dma_cyclic()
/Linux-v4.19/drivers/dma/xilinx/
Dxilinx_dma.c534 size_t period_len) in xilinx_axidma_buf() argument
537 hw->buf_addr = lower_32_bits(buf_addr + sg_used + period_len); in xilinx_axidma_buf()
539 period_len); in xilinx_axidma_buf()
541 hw->buf_addr = buf_addr + sg_used + period_len; in xilinx_axidma_buf()
1866 size_t period_len, enum dma_transfer_direction direction, in xilinx_dma_prep_dma_cyclic() argument
1877 if (!period_len) in xilinx_dma_prep_dma_cyclic()
1880 num_periods = buf_len / period_len; in xilinx_dma_prep_dma_cyclic()
1900 while (sg_used < period_len) { in xilinx_dma_prep_dma_cyclic()
1912 copy = min_t(size_t, period_len - sg_used, in xilinx_dma_prep_dma_cyclic()
1916 period_len * i); in xilinx_dma_prep_dma_cyclic()

12