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pluto_hdl_adi/library/axi_dmac/axi_dmac_transfer.v

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axi_dmac: Split transfer handling into separate sub-module Move the transfer logic, including the 2d module, into its own sub-module. This allows testing of the full transfer logic independently of the register map logic. The top-level module now only instantiates the register map and transfer module, but does not have any logic on its own. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
2017-08-05 05:57:38 +00:00
// ***************************************************************************
// ***************************************************************************
Add/edit copyright and license for .v, .sv files Signed-off-by: Iulia Moldovan <Iulia.Moldovan@analog.com>
2023-07-06 13:54:40 +00:00
// Copyright (C) 2014-2023 Analog Devices, Inc. All rights reserved.
axi_dmac: Split transfer handling into separate sub-module Move the transfer logic, including the 2d module, into its own sub-module. This allows testing of the full transfer logic independently of the register map logic. The top-level module now only instantiates the register map and transfer module, but does not have any logic on its own. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
2017-08-05 05:57:38 +00:00
//
// In this HDL repository, there are many different and unique modules, consisting
// of various HDL (Verilog or VHDL) components. The individual modules are
// developed independently, and may be accompanied by separate and unique license
// terms.
//
// The user should read each of these license terms, and understand the
Add/edit copyright and license for .v, .sv files Signed-off-by: Iulia Moldovan <Iulia.Moldovan@analog.com>
2023-07-06 13:54:40 +00:00
// freedoms and responsibilities that he or she has by using this source/core.
axi_dmac: Split transfer handling into separate sub-module Move the transfer logic, including the 2d module, into its own sub-module. This allows testing of the full transfer logic independently of the register map logic. The top-level module now only instantiates the register map and transfer module, but does not have any logic on its own. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
2017-08-05 05:57:38 +00:00
//
// This core is distributed in the hope that it will be useful, but WITHOUT ANY
// WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
// A PARTICULAR PURPOSE.
//
// Redistribution and use of source or resulting binaries, with or without modification
// of this file, are permitted under one of the following two license terms:
//
// 1. The GNU General Public License version 2 as published by the
// Free Software Foundation, which can be found in the top level directory
// of this repository (LICENSE_GPL2), and also online at:
// <https://www.gnu.org/licenses/old-licenses/gpl-2.0.html>
//
// OR
//
// 2. An ADI specific BSD license, which can be found in the top level directory
// of this repository (LICENSE_ADIBSD), and also on-line at:
Replace link in license header from master to main Signed-off-by: Iulia Moldovan <Iulia.Moldovan@analog.com>
2023-12-13 16:03:34 +00:00
// https://github.com/analogdevicesinc/hdl/blob/main/LICENSE_ADIBSD
axi_dmac: Split transfer handling into separate sub-module Move the transfer logic, including the 2d module, into its own sub-module. This allows testing of the full transfer logic independently of the register map logic. The top-level module now only instantiates the register map and transfer module, but does not have any logic on its own. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
2017-08-05 05:57:38 +00:00
// This will allow to generate bit files and not release the source code,
// as long as it attaches to an ADI device.
//
// ***************************************************************************
// ***************************************************************************
Add missing timescale annotations For consistent simulation behavior it is recommended to annotate all source files with a timescale. Add it to those where it is currently missing. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
2018-08-27 07:14:54 +00:00
`timescale 1ns/100ps
axi_dmac: Split transfer handling into separate sub-module Move the transfer logic, including the 2d module, into its own sub-module. This allows testing of the full transfer logic independently of the register map logic. The top-level module now only instantiates the register map and transfer module, but does not have any logic on its own. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
2017-08-05 05:57:38 +00:00
module axi_dmac_transfer #(
parameter DMA_DATA_WIDTH_SRC = 64,
parameter DMA_DATA_WIDTH_DEST = 64,
axi_dmac: Add support for DMA Scatter-Gather This commit introduces a different interface to submit transfers, using DMA descriptors. The structure of the DMA descriptor is as follows: struct dma_desc { u32 flags, u32 id, u64 dest_addr, u64 src_addr, u64 next_sg_addr, u32 y_len, u32 x_len, u32 src_stride, u32 dst_stride, }; The 'flags' field currently offers two control bits: - bit 0: if set, the transfer will complete after this last descriptor is processed, and the DMA core will go back to idle state; if cleared, the next DMA descriptor pointed to by 'next_sg_addr' will be loaded. - bit 1: if set, an end-of-transfer interrupt will be raised after the memory segment pointed to by this descriptor has been transferred. The 'id' field corresponds to an identifier of the descriptor. The 'dest_addr' and 'src_addr' contain the destination and source addresses to use for the transfer, respectively. The 'x_len' field contains the number of bytes to transfer, minus one. The 'y_len', 'src_stride' and 'dst_stride' fields are only useful for 2D transfers, and should be set to zero if 2D transfers are not required. To start a transfer, the address of the first DMA descriptor must be written to register 0x47c and the HWDESC bit of CONTROL register must be set. The Scatter-Gather transfer is queued similarly to the simple transfers, by writing 1 in TRANSFER_SUBMIT. The Scatter-Gather interface has a dedicated AXI-MM bus configured for read transfers, with its own dedicated clock, which can be asynchronous. The Scatter-Gather reset is generated by the reset manager to reset the logic after completing any pending transactions on the bus. When the Scatter-Gather is enabled during runtime, the legacy cyclic functionality of the DMA is disabled. Signed-off-by: Ionut Podgoreanu <ionut.podgoreanu@analog.com>
2023-08-10 10:10:24 +00:00
parameter DMA_DATA_WIDTH_SG = 64,
axi_dmac: Split transfer handling into separate sub-module Move the transfer logic, including the 2d module, into its own sub-module. This allows testing of the full transfer logic independently of the register map logic. The top-level module now only instantiates the register map and transfer module, but does not have any logic on its own. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
2017-08-05 05:57:38 +00:00
parameter DMA_LENGTH_WIDTH = 24,
axi_dmac: burst_memory: Consider DMA_LENGTH_ALIGN The DMA_LENGTH_ALIGN LSBs of all length For the most part the tools are able to deduce this using constant propagation. But this propagation does not work across the asynchronous meta data FIFO in the burst memory module. Add a DMA_LENGTH_ALIGN parameter to the burst_memory module which is used to explicitly keep the LSBs of length registers on the destination side fixed at 1'b1. This reduces resource use and improves timing by allowing better constant propagation and unused logic elimination. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
2018-10-18 13:55:00 +00:00
parameter DMA_LENGTH_ALIGN = 3,
axi_dmac: Split transfer handling into separate sub-module Move the transfer logic, including the 2d module, into its own sub-module. This allows testing of the full transfer logic independently of the register map logic. The top-level module now only instantiates the register map and transfer module, but does not have any logic on its own. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
2017-08-05 05:57:38 +00:00
parameter BYTES_PER_BEAT_WIDTH_DEST = $clog2(DMA_DATA_WIDTH_DEST/8),
parameter BYTES_PER_BEAT_WIDTH_SRC = $clog2(DMA_DATA_WIDTH_SRC/8),
axi_dmac: Add support for DMA Scatter-Gather This commit introduces a different interface to submit transfers, using DMA descriptors. The structure of the DMA descriptor is as follows: struct dma_desc { u32 flags, u32 id, u64 dest_addr, u64 src_addr, u64 next_sg_addr, u32 y_len, u32 x_len, u32 src_stride, u32 dst_stride, }; The 'flags' field currently offers two control bits: - bit 0: if set, the transfer will complete after this last descriptor is processed, and the DMA core will go back to idle state; if cleared, the next DMA descriptor pointed to by 'next_sg_addr' will be loaded. - bit 1: if set, an end-of-transfer interrupt will be raised after the memory segment pointed to by this descriptor has been transferred. The 'id' field corresponds to an identifier of the descriptor. The 'dest_addr' and 'src_addr' contain the destination and source addresses to use for the transfer, respectively. The 'x_len' field contains the number of bytes to transfer, minus one. The 'y_len', 'src_stride' and 'dst_stride' fields are only useful for 2D transfers, and should be set to zero if 2D transfers are not required. To start a transfer, the address of the first DMA descriptor must be written to register 0x47c and the HWDESC bit of CONTROL register must be set. The Scatter-Gather transfer is queued similarly to the simple transfers, by writing 1 in TRANSFER_SUBMIT. The Scatter-Gather interface has a dedicated AXI-MM bus configured for read transfers, with its own dedicated clock, which can be asynchronous. The Scatter-Gather reset is generated by the reset manager to reset the logic after completing any pending transactions on the bus. When the Scatter-Gather is enabled during runtime, the legacy cyclic functionality of the DMA is disabled. Signed-off-by: Ionut Podgoreanu <ionut.podgoreanu@analog.com>
2023-08-10 10:10:24 +00:00
parameter BYTES_PER_BEAT_WIDTH_SG = $clog2(DMA_DATA_WIDTH_SG/8),
axi_dmac: Split transfer handling into separate sub-module Move the transfer logic, including the 2d module, into its own sub-module. This allows testing of the full transfer logic independently of the register map logic. The top-level module now only instantiates the register map and transfer module, but does not have any logic on its own. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
2017-08-05 05:57:38 +00:00
parameter DMA_TYPE_DEST = 0,
parameter DMA_TYPE_SRC = 2,
parameter DMA_AXI_ADDR_WIDTH = 32,
axi_dmac: Add support for DMA Scatter-Gather This commit introduces a different interface to submit transfers, using DMA descriptors. The structure of the DMA descriptor is as follows: struct dma_desc { u32 flags, u32 id, u64 dest_addr, u64 src_addr, u64 next_sg_addr, u32 y_len, u32 x_len, u32 src_stride, u32 dst_stride, }; The 'flags' field currently offers two control bits: - bit 0: if set, the transfer will complete after this last descriptor is processed, and the DMA core will go back to idle state; if cleared, the next DMA descriptor pointed to by 'next_sg_addr' will be loaded. - bit 1: if set, an end-of-transfer interrupt will be raised after the memory segment pointed to by this descriptor has been transferred. The 'id' field corresponds to an identifier of the descriptor. The 'dest_addr' and 'src_addr' contain the destination and source addresses to use for the transfer, respectively. The 'x_len' field contains the number of bytes to transfer, minus one. The 'y_len', 'src_stride' and 'dst_stride' fields are only useful for 2D transfers, and should be set to zero if 2D transfers are not required. To start a transfer, the address of the first DMA descriptor must be written to register 0x47c and the HWDESC bit of CONTROL register must be set. The Scatter-Gather transfer is queued similarly to the simple transfers, by writing 1 in TRANSFER_SUBMIT. The Scatter-Gather interface has a dedicated AXI-MM bus configured for read transfers, with its own dedicated clock, which can be asynchronous. The Scatter-Gather reset is generated by the reset manager to reset the logic after completing any pending transactions on the bus. When the Scatter-Gather is enabled during runtime, the legacy cyclic functionality of the DMA is disabled. Signed-off-by: Ionut Podgoreanu <ionut.podgoreanu@analog.com>
2023-08-10 10:10:24 +00:00
parameter DMA_2D_TRANSFER = 0,
parameter DMA_SG_TRANSFER = 0,
axi_dmac: Split transfer handling into separate sub-module Move the transfer logic, including the 2d module, into its own sub-module. This allows testing of the full transfer logic independently of the register map logic. The top-level module now only instantiates the register map and transfer module, but does not have any logic on its own. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
2017-08-05 05:57:38 +00:00
parameter ASYNC_CLK_REQ_SRC = 1,
parameter ASYNC_CLK_SRC_DEST = 1,
parameter ASYNC_CLK_DEST_REQ = 1,
axi_dmac: Add support for DMA Scatter-Gather This commit introduces a different interface to submit transfers, using DMA descriptors. The structure of the DMA descriptor is as follows: struct dma_desc { u32 flags, u32 id, u64 dest_addr, u64 src_addr, u64 next_sg_addr, u32 y_len, u32 x_len, u32 src_stride, u32 dst_stride, }; The 'flags' field currently offers two control bits: - bit 0: if set, the transfer will complete after this last descriptor is processed, and the DMA core will go back to idle state; if cleared, the next DMA descriptor pointed to by 'next_sg_addr' will be loaded. - bit 1: if set, an end-of-transfer interrupt will be raised after the memory segment pointed to by this descriptor has been transferred. The 'id' field corresponds to an identifier of the descriptor. The 'dest_addr' and 'src_addr' contain the destination and source addresses to use for the transfer, respectively. The 'x_len' field contains the number of bytes to transfer, minus one. The 'y_len', 'src_stride' and 'dst_stride' fields are only useful for 2D transfers, and should be set to zero if 2D transfers are not required. To start a transfer, the address of the first DMA descriptor must be written to register 0x47c and the HWDESC bit of CONTROL register must be set. The Scatter-Gather transfer is queued similarly to the simple transfers, by writing 1 in TRANSFER_SUBMIT. The Scatter-Gather interface has a dedicated AXI-MM bus configured for read transfers, with its own dedicated clock, which can be asynchronous. The Scatter-Gather reset is generated by the reset manager to reset the logic after completing any pending transactions on the bus. When the Scatter-Gather is enabled during runtime, the legacy cyclic functionality of the DMA is disabled. Signed-off-by: Ionut Podgoreanu <ionut.podgoreanu@analog.com>
2023-08-10 10:10:24 +00:00
parameter ASYNC_CLK_REQ_SG = 1,
axi_dmac: Split transfer handling into separate sub-module Move the transfer logic, including the 2d module, into its own sub-module. This allows testing of the full transfer logic independently of the register map logic. The top-level module now only instantiates the register map and transfer module, but does not have any logic on its own. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
2017-08-05 05:57:38 +00:00
parameter AXI_SLICE_DEST = 0,
parameter AXI_SLICE_SRC = 0,
parameter MAX_BYTES_PER_BURST = 128,
axi_dmac: preparation work for reporting length of partial transfers Length of partial transfers are stored in a queue for SW reads. The presence of partial transfer is indicated by a status bit. The reporting can be enabled by a control bit. The progress of any transfer can be followed by a debug register.
2018-08-10 14:47:21 +00:00
parameter BYTES_PER_BURST_WIDTH = 7,
axi_dmac: Split transfer handling into separate sub-module Move the transfer logic, including the 2d module, into its own sub-module. This allows testing of the full transfer logic independently of the register map logic. The top-level module now only instantiates the register map and transfer module, but does not have any logic on its own. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
2017-08-05 05:57:38 +00:00
parameter FIFO_SIZE = 8,
parameter ID_WIDTH = $clog2(FIFO_SIZE*2),
parameter AXI_LENGTH_WIDTH_SRC = 8,
axi_dmac: diagnostic interface in bursts This change adds a diagnostic interface to the DMAC core. The interface exposes internal information about the core, information which can't be exposed through AXI registers due the latency and update rate. Such information is the fullness of the internal buffer. For this is exposed in bursts and is driven from the destination clock domain, as this is reflected in its name. The signal has a fixed size and is dimensioned by taking in account the supported maximum number of bursts of 128.
2018-06-07 13:20:27 +00:00
parameter AXI_LENGTH_WIDTH_DEST = 8,
axi_dmac: Add support for DMA Scatter-Gather This commit introduces a different interface to submit transfers, using DMA descriptors. The structure of the DMA descriptor is as follows: struct dma_desc { u32 flags, u32 id, u64 dest_addr, u64 src_addr, u64 next_sg_addr, u32 y_len, u32 x_len, u32 src_stride, u32 dst_stride, }; The 'flags' field currently offers two control bits: - bit 0: if set, the transfer will complete after this last descriptor is processed, and the DMA core will go back to idle state; if cleared, the next DMA descriptor pointed to by 'next_sg_addr' will be loaded. - bit 1: if set, an end-of-transfer interrupt will be raised after the memory segment pointed to by this descriptor has been transferred. The 'id' field corresponds to an identifier of the descriptor. The 'dest_addr' and 'src_addr' contain the destination and source addresses to use for the transfer, respectively. The 'x_len' field contains the number of bytes to transfer, minus one. The 'y_len', 'src_stride' and 'dst_stride' fields are only useful for 2D transfers, and should be set to zero if 2D transfers are not required. To start a transfer, the address of the first DMA descriptor must be written to register 0x47c and the HWDESC bit of CONTROL register must be set. The Scatter-Gather transfer is queued similarly to the simple transfers, by writing 1 in TRANSFER_SUBMIT. The Scatter-Gather interface has a dedicated AXI-MM bus configured for read transfers, with its own dedicated clock, which can be asynchronous. The Scatter-Gather reset is generated by the reset manager to reset the logic after completing any pending transactions on the bus. When the Scatter-Gather is enabled during runtime, the legacy cyclic functionality of the DMA is disabled. Signed-off-by: Ionut Podgoreanu <ionut.podgoreanu@analog.com>
2023-08-10 10:10:24 +00:00
parameter AXI_LENGTH_WIDTH_SG = 8,
axi_dmac: burst_memory: Add support for using asymmetric memory FPGAs support different widths for the read and write port of the block SRAM cells. The DMAC can make use of this feature when the source and destination interface have a different width to up-size/down-size the data bus. Using memory cells with asymmetric port width consumes the same amount of SRAM cells, but allows to bypass the re-size blocks inside the DMAC that are otherwise used for up- and down-sizing. This reduces overall resource usage and can improve timing. If the ratio between the destination and source port is too larger to be handled by SRAM alone the SRAM block will be configured to do partial up- or down-sizing and a resize block will be inserted to take care of the remaining up-/down-sizing. E.g. if a 256-bit interface is connected to a 32-bit interface the SRAM will be used to do an initial resizing of 256 bit to 64 bit and a resize block will be used to do the remaining resizing from 64 bit to 32 bit. Currently this feature is disabled for Intel FPGAs since Quartus does not properly infer a block RAM with different read and write port widths from the current ad_asym_mem module. Once that has been resolved support for asymmetric memories can also be enabled in the DMAC. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
2018-06-08 09:43:43 +00:00
parameter ENABLE_DIAGNOSTICS_IF = 0,
axi_dmac: Add parameter controlling AWCACHE On architectures with ports that support cache coherency, the AWCACHE signal must be set to indicate that transactions are cached. This patch adds a parameter allowing AWCACHE to be set on an AXI4 destination port.
2022-05-05 08:35:34 +00:00
parameter ALLOW_ASYM_MEM = 0,
parameter CACHE_COHERENT_DEST = 0
axi_dmac: Split transfer handling into separate sub-module Move the transfer logic, including the 2d module, into its own sub-module. This allows testing of the full transfer logic independently of the register map logic. The top-level module now only instantiates the register map and transfer module, but does not have any logic on its own. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
2017-08-05 05:57:38 +00:00
) (
axi_dmac: Rework transfer shutdown The DMAC allows a transfer to be aborted. When a transfer is aborted the DMAC shuts down as fast as possible while still completing any pending transactions as required by the protocol specifications of the port. E.g. for AXI-MM this means to complete all outstanding bursts. Once the DMAC has entered an idle state a special synchronization signal is send to all modules. This synchronization signal instructs them to flush the pipeline and remove any stale data and metadata associated with the aborted transfer. Once all data has been flushed the DMAC enters the shutdown state and is ready for the next transfer. In addition each module has a reset that resets the modules state and is used at system startup to bring them into a consistent state. Re-work the shutdown process to instead of flushing the pipeline re-use the startup reset signal also for shutdown. To manage the reset signal generation introduce the reset manager module. It contains a state machine that will assert the reset signals in the correct order and for the appropriate duration in case of a transfer shutdown. The reset signal is asserted in all domains until it has been asserted for at least 4 clock cycles in the slowest domain. This ensures that the reset signal is not de-asserted in the faster domains before the slower domains have had a chance to process the reset signal. In addition the reset signal is de-asserted in the opposite direction of the data flow. This ensures that the data sink is ready to receive data before the data source can start sending data. This simplifies the internal handshaking. This approach has multiple advantages. * Issuing a reset and removing all state takes less time than explicitly flushing one sample per clock cycle at a time. * It simplifies the logic in the faster clock domains at the expense of more complicated logic in the slower control clock domain. This allows for higher fMax on the data paths. * Less signals to synchronize from the control domain to the data domains The implementation of the pause mode has also slightly changed. Pause is now a simple disable of the data domains. When the transfer is resumed after a pause the data domains are re-enabled and continue at their previous state. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
2017-09-21 14:02:44 +00:00
input ctrl_clk,
input ctrl_resetn,
input ctrl_enable,
input ctrl_pause,
axi_dmac: Add support for DMA Scatter-Gather This commit introduces a different interface to submit transfers, using DMA descriptors. The structure of the DMA descriptor is as follows: struct dma_desc { u32 flags, u32 id, u64 dest_addr, u64 src_addr, u64 next_sg_addr, u32 y_len, u32 x_len, u32 src_stride, u32 dst_stride, }; The 'flags' field currently offers two control bits: - bit 0: if set, the transfer will complete after this last descriptor is processed, and the DMA core will go back to idle state; if cleared, the next DMA descriptor pointed to by 'next_sg_addr' will be loaded. - bit 1: if set, an end-of-transfer interrupt will be raised after the memory segment pointed to by this descriptor has been transferred. The 'id' field corresponds to an identifier of the descriptor. The 'dest_addr' and 'src_addr' contain the destination and source addresses to use for the transfer, respectively. The 'x_len' field contains the number of bytes to transfer, minus one. The 'y_len', 'src_stride' and 'dst_stride' fields are only useful for 2D transfers, and should be set to zero if 2D transfers are not required. To start a transfer, the address of the first DMA descriptor must be written to register 0x47c and the HWDESC bit of CONTROL register must be set. The Scatter-Gather transfer is queued similarly to the simple transfers, by writing 1 in TRANSFER_SUBMIT. The Scatter-Gather interface has a dedicated AXI-MM bus configured for read transfers, with its own dedicated clock, which can be asynchronous. The Scatter-Gather reset is generated by the reset manager to reset the logic after completing any pending transactions on the bus. When the Scatter-Gather is enabled during runtime, the legacy cyclic functionality of the DMA is disabled. Signed-off-by: Ionut Podgoreanu <ionut.podgoreanu@analog.com>
2023-08-10 10:10:24 +00:00
input ctrl_hwdesc,
axi_dmac: Split transfer handling into separate sub-module Move the transfer logic, including the 2d module, into its own sub-module. This allows testing of the full transfer logic independently of the register map logic. The top-level module now only instantiates the register map and transfer module, but does not have any logic on its own. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
2017-08-05 05:57:38 +00:00
input req_valid,
output req_ready,
input [DMA_AXI_ADDR_WIDTH-1:BYTES_PER_BEAT_WIDTH_DEST] req_dest_address,
input [DMA_AXI_ADDR_WIDTH-1:BYTES_PER_BEAT_WIDTH_SRC] req_src_address,
axi_dmac: Add support for DMA Scatter-Gather This commit introduces a different interface to submit transfers, using DMA descriptors. The structure of the DMA descriptor is as follows: struct dma_desc { u32 flags, u32 id, u64 dest_addr, u64 src_addr, u64 next_sg_addr, u32 y_len, u32 x_len, u32 src_stride, u32 dst_stride, }; The 'flags' field currently offers two control bits: - bit 0: if set, the transfer will complete after this last descriptor is processed, and the DMA core will go back to idle state; if cleared, the next DMA descriptor pointed to by 'next_sg_addr' will be loaded. - bit 1: if set, an end-of-transfer interrupt will be raised after the memory segment pointed to by this descriptor has been transferred. The 'id' field corresponds to an identifier of the descriptor. The 'dest_addr' and 'src_addr' contain the destination and source addresses to use for the transfer, respectively. The 'x_len' field contains the number of bytes to transfer, minus one. The 'y_len', 'src_stride' and 'dst_stride' fields are only useful for 2D transfers, and should be set to zero if 2D transfers are not required. To start a transfer, the address of the first DMA descriptor must be written to register 0x47c and the HWDESC bit of CONTROL register must be set. The Scatter-Gather transfer is queued similarly to the simple transfers, by writing 1 in TRANSFER_SUBMIT. The Scatter-Gather interface has a dedicated AXI-MM bus configured for read transfers, with its own dedicated clock, which can be asynchronous. The Scatter-Gather reset is generated by the reset manager to reset the logic after completing any pending transactions on the bus. When the Scatter-Gather is enabled during runtime, the legacy cyclic functionality of the DMA is disabled. Signed-off-by: Ionut Podgoreanu <ionut.podgoreanu@analog.com>
2023-08-10 10:10:24 +00:00
input [DMA_AXI_ADDR_WIDTH-1:BYTES_PER_BEAT_WIDTH_SG] req_sg_address,
axi_dmac: Split transfer handling into separate sub-module Move the transfer logic, including the 2d module, into its own sub-module. This allows testing of the full transfer logic independently of the register map logic. The top-level module now only instantiates the register map and transfer module, but does not have any logic on its own. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
2017-08-05 05:57:38 +00:00
input [DMA_LENGTH_WIDTH-1:0] req_x_length,
input [DMA_LENGTH_WIDTH-1:0] req_y_length,
input [DMA_LENGTH_WIDTH-1:0] req_dest_stride,
input [DMA_LENGTH_WIDTH-1:0] req_src_stride,
input req_sync_transfer_start,
input req_last,
output req_eot,
axi_dmac: Add support for DMA Scatter-Gather This commit introduces a different interface to submit transfers, using DMA descriptors. The structure of the DMA descriptor is as follows: struct dma_desc { u32 flags, u32 id, u64 dest_addr, u64 src_addr, u64 next_sg_addr, u32 y_len, u32 x_len, u32 src_stride, u32 dst_stride, }; The 'flags' field currently offers two control bits: - bit 0: if set, the transfer will complete after this last descriptor is processed, and the DMA core will go back to idle state; if cleared, the next DMA descriptor pointed to by 'next_sg_addr' will be loaded. - bit 1: if set, an end-of-transfer interrupt will be raised after the memory segment pointed to by this descriptor has been transferred. The 'id' field corresponds to an identifier of the descriptor. The 'dest_addr' and 'src_addr' contain the destination and source addresses to use for the transfer, respectively. The 'x_len' field contains the number of bytes to transfer, minus one. The 'y_len', 'src_stride' and 'dst_stride' fields are only useful for 2D transfers, and should be set to zero if 2D transfers are not required. To start a transfer, the address of the first DMA descriptor must be written to register 0x47c and the HWDESC bit of CONTROL register must be set. The Scatter-Gather transfer is queued similarly to the simple transfers, by writing 1 in TRANSFER_SUBMIT. The Scatter-Gather interface has a dedicated AXI-MM bus configured for read transfers, with its own dedicated clock, which can be asynchronous. The Scatter-Gather reset is generated by the reset manager to reset the logic after completing any pending transactions on the bus. When the Scatter-Gather is enabled during runtime, the legacy cyclic functionality of the DMA is disabled. Signed-off-by: Ionut Podgoreanu <ionut.podgoreanu@analog.com>
2023-08-10 10:10:24 +00:00
output [31:0] req_sg_desc_id,
axi_dmac: preparation work for reporting length of partial transfers Length of partial transfers are stored in a queue for SW reads. The presence of partial transfer is indicated by a status bit. The reporting can be enabled by a control bit. The progress of any transfer can be followed by a debug register.
2018-08-10 14:47:21 +00:00
output [BYTES_PER_BURST_WIDTH-1:0] req_measured_burst_length,
output req_response_partial,
output req_response_valid,
input req_response_ready,
axi_dmac: Split transfer handling into separate sub-module Move the transfer logic, including the 2d module, into its own sub-module. This allows testing of the full transfer logic independently of the register map logic. The top-level module now only instantiates the register map and transfer module, but does not have any logic on its own. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
2017-08-05 05:57:38 +00:00
// Master AXI interface
input m_dest_axi_aclk,
input m_dest_axi_aresetn,
input m_src_axi_aclk,
input m_src_axi_aresetn,
axi_dmac: Add support for DMA Scatter-Gather This commit introduces a different interface to submit transfers, using DMA descriptors. The structure of the DMA descriptor is as follows: struct dma_desc { u32 flags, u32 id, u64 dest_addr, u64 src_addr, u64 next_sg_addr, u32 y_len, u32 x_len, u32 src_stride, u32 dst_stride, }; The 'flags' field currently offers two control bits: - bit 0: if set, the transfer will complete after this last descriptor is processed, and the DMA core will go back to idle state; if cleared, the next DMA descriptor pointed to by 'next_sg_addr' will be loaded. - bit 1: if set, an end-of-transfer interrupt will be raised after the memory segment pointed to by this descriptor has been transferred. The 'id' field corresponds to an identifier of the descriptor. The 'dest_addr' and 'src_addr' contain the destination and source addresses to use for the transfer, respectively. The 'x_len' field contains the number of bytes to transfer, minus one. The 'y_len', 'src_stride' and 'dst_stride' fields are only useful for 2D transfers, and should be set to zero if 2D transfers are not required. To start a transfer, the address of the first DMA descriptor must be written to register 0x47c and the HWDESC bit of CONTROL register must be set. The Scatter-Gather transfer is queued similarly to the simple transfers, by writing 1 in TRANSFER_SUBMIT. The Scatter-Gather interface has a dedicated AXI-MM bus configured for read transfers, with its own dedicated clock, which can be asynchronous. The Scatter-Gather reset is generated by the reset manager to reset the logic after completing any pending transactions on the bus. When the Scatter-Gather is enabled during runtime, the legacy cyclic functionality of the DMA is disabled. Signed-off-by: Ionut Podgoreanu <ionut.podgoreanu@analog.com>
2023-08-10 10:10:24 +00:00
input m_sg_axi_aclk,
input m_sg_axi_aresetn,
axi_dmac: Split transfer handling into separate sub-module Move the transfer logic, including the 2d module, into its own sub-module. This allows testing of the full transfer logic independently of the register map logic. The top-level module now only instantiates the register map and transfer module, but does not have any logic on its own. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
2017-08-05 05:57:38 +00:00
// Write address
output [DMA_AXI_ADDR_WIDTH-1:0] m_axi_awaddr,
output [AXI_LENGTH_WIDTH_DEST-1:0] m_axi_awlen,
output [2:0] m_axi_awsize,
output [1:0] m_axi_awburst,
output [2:0] m_axi_awprot,
output [3:0] m_axi_awcache,
output m_axi_awvalid,
input m_axi_awready,
// Write data
output [DMA_DATA_WIDTH_DEST-1:0] m_axi_wdata,
output [(DMA_DATA_WIDTH_DEST/8)-1:0] m_axi_wstrb,
input m_axi_wready,
output m_axi_wvalid,
output m_axi_wlast,
// Write response
input m_axi_bvalid,
input [1:0] m_axi_bresp,
output m_axi_bready,
// Read address
input m_axi_arready,
output m_axi_arvalid,
output [DMA_AXI_ADDR_WIDTH-1:0] m_axi_araddr,
output [AXI_LENGTH_WIDTH_SRC-1:0] m_axi_arlen,
output [2:0] m_axi_arsize,
output [1:0] m_axi_arburst,
output [2:0] m_axi_arprot,
output [3:0] m_axi_arcache,
// Read data and response
input [DMA_DATA_WIDTH_SRC-1:0] m_axi_rdata,
axi_dmac: Hook up rlast for MM-AXI source interface For the memory-mapped AXI read interface the slave asserts rlast for the last beat in a burst. This means we don't have to count the number of beats to know when the burst is completed but instead can use rlast. This slightly reduces the amount of resources needed for the MM-AXI source module and given that the beat_counter is often the bottleneck timing wise this should also improve the timing. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
2017-09-08 09:12:44 +00:00
input m_axi_rlast,
axi_dmac: Split transfer handling into separate sub-module Move the transfer logic, including the 2d module, into its own sub-module. This allows testing of the full transfer logic independently of the register map logic. The top-level module now only instantiates the register map and transfer module, but does not have any logic on its own. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
2017-08-05 05:57:38 +00:00
output m_axi_rready,
input m_axi_rvalid,
input [1:0] m_axi_rresp,
axi_dmac: Add support for DMA Scatter-Gather This commit introduces a different interface to submit transfers, using DMA descriptors. The structure of the DMA descriptor is as follows: struct dma_desc { u32 flags, u32 id, u64 dest_addr, u64 src_addr, u64 next_sg_addr, u32 y_len, u32 x_len, u32 src_stride, u32 dst_stride, }; The 'flags' field currently offers two control bits: - bit 0: if set, the transfer will complete after this last descriptor is processed, and the DMA core will go back to idle state; if cleared, the next DMA descriptor pointed to by 'next_sg_addr' will be loaded. - bit 1: if set, an end-of-transfer interrupt will be raised after the memory segment pointed to by this descriptor has been transferred. The 'id' field corresponds to an identifier of the descriptor. The 'dest_addr' and 'src_addr' contain the destination and source addresses to use for the transfer, respectively. The 'x_len' field contains the number of bytes to transfer, minus one. The 'y_len', 'src_stride' and 'dst_stride' fields are only useful for 2D transfers, and should be set to zero if 2D transfers are not required. To start a transfer, the address of the first DMA descriptor must be written to register 0x47c and the HWDESC bit of CONTROL register must be set. The Scatter-Gather transfer is queued similarly to the simple transfers, by writing 1 in TRANSFER_SUBMIT. The Scatter-Gather interface has a dedicated AXI-MM bus configured for read transfers, with its own dedicated clock, which can be asynchronous. The Scatter-Gather reset is generated by the reset manager to reset the logic after completing any pending transactions on the bus. When the Scatter-Gather is enabled during runtime, the legacy cyclic functionality of the DMA is disabled. Signed-off-by: Ionut Podgoreanu <ionut.podgoreanu@analog.com>
2023-08-10 10:10:24 +00:00
// Read address
input m_sg_axi_arready,
output m_sg_axi_arvalid,
output [DMA_AXI_ADDR_WIDTH-1:0] m_sg_axi_araddr,
output [AXI_LENGTH_WIDTH_SG-1:0] m_sg_axi_arlen,
output [2:0] m_sg_axi_arsize,
output [1:0] m_sg_axi_arburst,
output [2:0] m_sg_axi_arprot,
output [3:0] m_sg_axi_arcache,
// Read data and response
input [DMA_DATA_WIDTH_SG-1:0] m_sg_axi_rdata,
input m_sg_axi_rlast,
output m_sg_axi_rready,
input m_sg_axi_rvalid,
input [1:0] m_sg_axi_rresp,
axi_dmac: Split transfer handling into separate sub-module Move the transfer logic, including the 2d module, into its own sub-module. This allows testing of the full transfer logic independently of the register map logic. The top-level module now only instantiates the register map and transfer module, but does not have any logic on its own. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
2017-08-05 05:57:38 +00:00
// Slave streaming AXI interface
input s_axis_aclk,
output s_axis_ready,
input s_axis_valid,
input [DMA_DATA_WIDTH_SRC-1:0] s_axis_data,
input [0:0] s_axis_user,
axi_dmac: Rework transfer shutdown The DMAC allows a transfer to be aborted. When a transfer is aborted the DMAC shuts down as fast as possible while still completing any pending transactions as required by the protocol specifications of the port. E.g. for AXI-MM this means to complete all outstanding bursts. Once the DMAC has entered an idle state a special synchronization signal is send to all modules. This synchronization signal instructs them to flush the pipeline and remove any stale data and metadata associated with the aborted transfer. Once all data has been flushed the DMAC enters the shutdown state and is ready for the next transfer. In addition each module has a reset that resets the modules state and is used at system startup to bring them into a consistent state. Re-work the shutdown process to instead of flushing the pipeline re-use the startup reset signal also for shutdown. To manage the reset signal generation introduce the reset manager module. It contains a state machine that will assert the reset signals in the correct order and for the appropriate duration in case of a transfer shutdown. The reset signal is asserted in all domains until it has been asserted for at least 4 clock cycles in the slowest domain. This ensures that the reset signal is not de-asserted in the faster domains before the slower domains have had a chance to process the reset signal. In addition the reset signal is de-asserted in the opposite direction of the data flow. This ensures that the data sink is ready to receive data before the data source can start sending data. This simplifies the internal handshaking. This approach has multiple advantages. * Issuing a reset and removing all state takes less time than explicitly flushing one sample per clock cycle at a time. * It simplifies the logic in the faster clock domains at the expense of more complicated logic in the slower control clock domain. This allows for higher fMax on the data paths. * Less signals to synchronize from the control domain to the data domains The implementation of the pause mode has also slightly changed. Pause is now a simple disable of the data domains. When the transfer is resumed after a pause the data domains are re-enabled and continue at their previous state. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
2017-09-21 14:02:44 +00:00
input s_axis_last,
axi_dmac: Split transfer handling into separate sub-module Move the transfer logic, including the 2d module, into its own sub-module. This allows testing of the full transfer logic independently of the register map logic. The top-level module now only instantiates the register map and transfer module, but does not have any logic on its own. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
2017-08-05 05:57:38 +00:00
output s_axis_xfer_req,
// Master streaming AXI interface
input m_axis_aclk,
input m_axis_ready,
output m_axis_valid,
output [DMA_DATA_WIDTH_DEST-1:0] m_axis_data,
output m_axis_last,
output m_axis_xfer_req,
// Input FIFO interface
input fifo_wr_clk,
input fifo_wr_en,
input [DMA_DATA_WIDTH_SRC-1:0] fifo_wr_din,
output fifo_wr_overflow,
input fifo_wr_sync,
output fifo_wr_xfer_req,
// Input FIFO interface
input fifo_rd_clk,
input fifo_rd_en,
output fifo_rd_valid,
output [DMA_DATA_WIDTH_DEST-1:0] fifo_rd_dout,
output fifo_rd_underflow,
output fifo_rd_xfer_req,
output [ID_WIDTH-1:0] dbg_dest_request_id,
output [ID_WIDTH-1:0] dbg_dest_address_id,
output [ID_WIDTH-1:0] dbg_dest_data_id,
output [ID_WIDTH-1:0] dbg_dest_response_id,
output [ID_WIDTH-1:0] dbg_src_request_id,
output [ID_WIDTH-1:0] dbg_src_address_id,
output [ID_WIDTH-1:0] dbg_src_data_id,
output [ID_WIDTH-1:0] dbg_src_response_id,
axi_dmac: diagnostic interface in bursts This change adds a diagnostic interface to the DMAC core. The interface exposes internal information about the core, information which can't be exposed through AXI registers due the latency and update rate. Such information is the fullness of the internal buffer. For this is exposed in bursts and is driven from the destination clock domain, as this is reflected in its name. The signal has a fixed size and is dimensioned by taking in account the supported maximum number of bursts of 128.
2018-06-07 13:20:27 +00:00
output [11:0] dbg_status,
// Diagnostics interface
output [7:0] dest_diag_level_bursts
axi_dmac: Split transfer handling into separate sub-module Move the transfer logic, including the 2d module, into its own sub-module. This allows testing of the full transfer logic independently of the register map logic. The top-level module now only instantiates the register map and transfer module, but does not have any logic on its own. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
2017-08-05 05:57:38 +00:00
);
libraries: Update modules according to guideline * Added header license for the files that didn't have * Modified parentheses * Removed extra spaces at the end of lines * Fixed parameters list to be each parameter on its line * Deleted lines after endmodule and consecutive empty lines * Fixed indentation Signed-off-by: Iulia Moldovan <iulia.moldovan@analog.com>
2022-04-08 10:21:52 +00:00
wire dma_req_valid;
wire dma_req_ready;
wire [DMA_AXI_ADDR_WIDTH-1:BYTES_PER_BEAT_WIDTH_DEST] dma_req_dest_address;
wire [DMA_AXI_ADDR_WIDTH-1:BYTES_PER_BEAT_WIDTH_SRC] dma_req_src_address;
wire [DMA_LENGTH_WIDTH-1:0] dma_req_length;
wire [BYTES_PER_BURST_WIDTH-1:0] dma_req_measured_burst_length;
wire dma_req_eot;
wire dma_response_valid;
wire dma_response_ready;
wire dma_response_partial;
wire dma_req_sync_transfer_start;
wire dma_req_last;
axi_dmac: Add support for DMA Scatter-Gather This commit introduces a different interface to submit transfers, using DMA descriptors. The structure of the DMA descriptor is as follows: struct dma_desc { u32 flags, u32 id, u64 dest_addr, u64 src_addr, u64 next_sg_addr, u32 y_len, u32 x_len, u32 src_stride, u32 dst_stride, }; The 'flags' field currently offers two control bits: - bit 0: if set, the transfer will complete after this last descriptor is processed, and the DMA core will go back to idle state; if cleared, the next DMA descriptor pointed to by 'next_sg_addr' will be loaded. - bit 1: if set, an end-of-transfer interrupt will be raised after the memory segment pointed to by this descriptor has been transferred. The 'id' field corresponds to an identifier of the descriptor. The 'dest_addr' and 'src_addr' contain the destination and source addresses to use for the transfer, respectively. The 'x_len' field contains the number of bytes to transfer, minus one. The 'y_len', 'src_stride' and 'dst_stride' fields are only useful for 2D transfers, and should be set to zero if 2D transfers are not required. To start a transfer, the address of the first DMA descriptor must be written to register 0x47c and the HWDESC bit of CONTROL register must be set. The Scatter-Gather transfer is queued similarly to the simple transfers, by writing 1 in TRANSFER_SUBMIT. The Scatter-Gather interface has a dedicated AXI-MM bus configured for read transfers, with its own dedicated clock, which can be asynchronous. The Scatter-Gather reset is generated by the reset manager to reset the logic after completing any pending transactions on the bus. When the Scatter-Gather is enabled during runtime, the legacy cyclic functionality of the DMA is disabled. Signed-off-by: Ionut Podgoreanu <ionut.podgoreanu@analog.com>
2023-08-10 10:10:24 +00:00
wire [DMA_AXI_ADDR_WIDTH-1:BYTES_PER_BEAT_WIDTH_DEST] dma_sg_out_dest_address;
wire [DMA_AXI_ADDR_WIDTH-1:BYTES_PER_BEAT_WIDTH_SRC] dma_sg_out_src_address;
wire [DMA_LENGTH_WIDTH-1:0] dma_sg_x_length;
wire [DMA_LENGTH_WIDTH-1:0] dma_sg_y_length;
wire [DMA_LENGTH_WIDTH-1:0] dma_sg_src_stride;
wire [DMA_LENGTH_WIDTH-1:0] dma_sg_dst_stride;
wire [31:0] dma_sg_hwdesc_id;
wire dma_sg_hwdesc_eot;
wire dma_sg_in_req_valid;
wire dma_sg_in_req_ready;
wire dma_sg_out_req_valid;
wire dma_sg_out_req_ready;
libraries: Update modules according to guideline * Added header license for the files that didn't have * Modified parentheses * Removed extra spaces at the end of lines * Fixed parameters list to be each parameter on its line * Deleted lines after endmodule and consecutive empty lines * Fixed indentation Signed-off-by: Iulia Moldovan <iulia.moldovan@analog.com>
2022-04-08 10:21:52 +00:00
wire req_clk = ctrl_clk;
wire req_resetn;
wire req_enable;
wire dest_clk;
wire dest_ext_resetn;
wire dest_resetn;
wire dest_enable;
wire dest_enabled;
wire src_clk;
wire src_ext_resetn;
wire src_resetn;
wire src_enable;
wire src_enabled;
axi_dmac: Add support for DMA Scatter-Gather This commit introduces a different interface to submit transfers, using DMA descriptors. The structure of the DMA descriptor is as follows: struct dma_desc { u32 flags, u32 id, u64 dest_addr, u64 src_addr, u64 next_sg_addr, u32 y_len, u32 x_len, u32 src_stride, u32 dst_stride, }; The 'flags' field currently offers two control bits: - bit 0: if set, the transfer will complete after this last descriptor is processed, and the DMA core will go back to idle state; if cleared, the next DMA descriptor pointed to by 'next_sg_addr' will be loaded. - bit 1: if set, an end-of-transfer interrupt will be raised after the memory segment pointed to by this descriptor has been transferred. The 'id' field corresponds to an identifier of the descriptor. The 'dest_addr' and 'src_addr' contain the destination and source addresses to use for the transfer, respectively. The 'x_len' field contains the number of bytes to transfer, minus one. The 'y_len', 'src_stride' and 'dst_stride' fields are only useful for 2D transfers, and should be set to zero if 2D transfers are not required. To start a transfer, the address of the first DMA descriptor must be written to register 0x47c and the HWDESC bit of CONTROL register must be set. The Scatter-Gather transfer is queued similarly to the simple transfers, by writing 1 in TRANSFER_SUBMIT. The Scatter-Gather interface has a dedicated AXI-MM bus configured for read transfers, with its own dedicated clock, which can be asynchronous. The Scatter-Gather reset is generated by the reset manager to reset the logic after completing any pending transactions on the bus. When the Scatter-Gather is enabled during runtime, the legacy cyclic functionality of the DMA is disabled. Signed-off-by: Ionut Podgoreanu <ionut.podgoreanu@analog.com>
2023-08-10 10:10:24 +00:00
wire sg_clk;
wire sg_ext_resetn;
wire sg_resetn;
wire sg_enable;
wire sg_enabled;
libraries: Update modules according to guideline * Added header license for the files that didn't have * Modified parentheses * Removed extra spaces at the end of lines * Fixed parameters list to be each parameter on its line * Deleted lines after endmodule and consecutive empty lines * Fixed indentation Signed-off-by: Iulia Moldovan <iulia.moldovan@analog.com>
2022-04-08 10:21:52 +00:00
wire req_valid_gated;
wire req_ready_gated;
wire abort_req;
axi_dmac: Add support for DMA Scatter-Gather This commit introduces a different interface to submit transfers, using DMA descriptors. The structure of the DMA descriptor is as follows: struct dma_desc { u32 flags, u32 id, u64 dest_addr, u64 src_addr, u64 next_sg_addr, u32 y_len, u32 x_len, u32 src_stride, u32 dst_stride, }; The 'flags' field currently offers two control bits: - bit 0: if set, the transfer will complete after this last descriptor is processed, and the DMA core will go back to idle state; if cleared, the next DMA descriptor pointed to by 'next_sg_addr' will be loaded. - bit 1: if set, an end-of-transfer interrupt will be raised after the memory segment pointed to by this descriptor has been transferred. The 'id' field corresponds to an identifier of the descriptor. The 'dest_addr' and 'src_addr' contain the destination and source addresses to use for the transfer, respectively. The 'x_len' field contains the number of bytes to transfer, minus one. The 'y_len', 'src_stride' and 'dst_stride' fields are only useful for 2D transfers, and should be set to zero if 2D transfers are not required. To start a transfer, the address of the first DMA descriptor must be written to register 0x47c and the HWDESC bit of CONTROL register must be set. The Scatter-Gather transfer is queued similarly to the simple transfers, by writing 1 in TRANSFER_SUBMIT. The Scatter-Gather interface has a dedicated AXI-MM bus configured for read transfers, with its own dedicated clock, which can be asynchronous. The Scatter-Gather reset is generated by the reset manager to reset the logic after completing any pending transactions on the bus. When the Scatter-Gather is enabled during runtime, the legacy cyclic functionality of the DMA is disabled. Signed-off-by: Ionut Podgoreanu <ionut.podgoreanu@analog.com>
2023-08-10 10:10:24 +00:00
wire dma_eot;
libraries: Update modules according to guideline * Added header license for the files that didn't have * Modified parentheses * Removed extra spaces at the end of lines * Fixed parameters list to be each parameter on its line * Deleted lines after endmodule and consecutive empty lines * Fixed indentation Signed-off-by: Iulia Moldovan <iulia.moldovan@analog.com>
2022-04-08 10:21:52 +00:00
axi_dmac_reset_manager #(
.ASYNC_CLK_REQ_SRC (ASYNC_CLK_REQ_SRC),
.ASYNC_CLK_SRC_DEST (ASYNC_CLK_SRC_DEST),
axi_dmac: Add support for DMA Scatter-Gather This commit introduces a different interface to submit transfers, using DMA descriptors. The structure of the DMA descriptor is as follows: struct dma_desc { u32 flags, u32 id, u64 dest_addr, u64 src_addr, u64 next_sg_addr, u32 y_len, u32 x_len, u32 src_stride, u32 dst_stride, }; The 'flags' field currently offers two control bits: - bit 0: if set, the transfer will complete after this last descriptor is processed, and the DMA core will go back to idle state; if cleared, the next DMA descriptor pointed to by 'next_sg_addr' will be loaded. - bit 1: if set, an end-of-transfer interrupt will be raised after the memory segment pointed to by this descriptor has been transferred. The 'id' field corresponds to an identifier of the descriptor. The 'dest_addr' and 'src_addr' contain the destination and source addresses to use for the transfer, respectively. The 'x_len' field contains the number of bytes to transfer, minus one. The 'y_len', 'src_stride' and 'dst_stride' fields are only useful for 2D transfers, and should be set to zero if 2D transfers are not required. To start a transfer, the address of the first DMA descriptor must be written to register 0x47c and the HWDESC bit of CONTROL register must be set. The Scatter-Gather transfer is queued similarly to the simple transfers, by writing 1 in TRANSFER_SUBMIT. The Scatter-Gather interface has a dedicated AXI-MM bus configured for read transfers, with its own dedicated clock, which can be asynchronous. The Scatter-Gather reset is generated by the reset manager to reset the logic after completing any pending transactions on the bus. When the Scatter-Gather is enabled during runtime, the legacy cyclic functionality of the DMA is disabled. Signed-off-by: Ionut Podgoreanu <ionut.podgoreanu@analog.com>
2023-08-10 10:10:24 +00:00
.ASYNC_CLK_DEST_REQ (ASYNC_CLK_DEST_REQ),
.ASYNC_CLK_REQ_SG (ASYNC_CLK_REQ_SG),
.DMA_SG_TRANSFER (DMA_SG_TRANSFER)
libraries: Update modules according to guideline * Added header license for the files that didn't have * Modified parentheses * Removed extra spaces at the end of lines * Fixed parameters list to be each parameter on its line * Deleted lines after endmodule and consecutive empty lines * Fixed indentation Signed-off-by: Iulia Moldovan <iulia.moldovan@analog.com>
2022-04-08 10:21:52 +00:00
) i_reset_manager (
.clk (ctrl_clk),
.resetn (ctrl_resetn),
.ctrl_enable (ctrl_enable),
.ctrl_pause (ctrl_pause),
axi_dmac: Add support for DMA Scatter-Gather This commit introduces a different interface to submit transfers, using DMA descriptors. The structure of the DMA descriptor is as follows: struct dma_desc { u32 flags, u32 id, u64 dest_addr, u64 src_addr, u64 next_sg_addr, u32 y_len, u32 x_len, u32 src_stride, u32 dst_stride, }; The 'flags' field currently offers two control bits: - bit 0: if set, the transfer will complete after this last descriptor is processed, and the DMA core will go back to idle state; if cleared, the next DMA descriptor pointed to by 'next_sg_addr' will be loaded. - bit 1: if set, an end-of-transfer interrupt will be raised after the memory segment pointed to by this descriptor has been transferred. The 'id' field corresponds to an identifier of the descriptor. The 'dest_addr' and 'src_addr' contain the destination and source addresses to use for the transfer, respectively. The 'x_len' field contains the number of bytes to transfer, minus one. The 'y_len', 'src_stride' and 'dst_stride' fields are only useful for 2D transfers, and should be set to zero if 2D transfers are not required. To start a transfer, the address of the first DMA descriptor must be written to register 0x47c and the HWDESC bit of CONTROL register must be set. The Scatter-Gather transfer is queued similarly to the simple transfers, by writing 1 in TRANSFER_SUBMIT. The Scatter-Gather interface has a dedicated AXI-MM bus configured for read transfers, with its own dedicated clock, which can be asynchronous. The Scatter-Gather reset is generated by the reset manager to reset the logic after completing any pending transactions on the bus. When the Scatter-Gather is enabled during runtime, the legacy cyclic functionality of the DMA is disabled. Signed-off-by: Ionut Podgoreanu <ionut.podgoreanu@analog.com>
2023-08-10 10:10:24 +00:00
.ctrl_hwdesc (ctrl_hwdesc),
libraries: Update modules according to guideline * Added header license for the files that didn't have * Modified parentheses * Removed extra spaces at the end of lines * Fixed parameters list to be each parameter on its line * Deleted lines after endmodule and consecutive empty lines * Fixed indentation Signed-off-by: Iulia Moldovan <iulia.moldovan@analog.com>
2022-04-08 10:21:52 +00:00
.req_resetn (req_resetn),
.req_enable (req_enable),
.req_enabled (req_enable),
.dest_clk (dest_clk),
.dest_ext_resetn (dest_ext_resetn),
.dest_resetn (dest_resetn),
.dest_enable (dest_enable),
.dest_enabled (dest_enabled),
.src_clk (src_clk),
.src_ext_resetn (src_ext_resetn),
.src_resetn (src_resetn),
.src_enable (src_enable),
.src_enabled (src_enabled),
axi_dmac: Add support for DMA Scatter-Gather This commit introduces a different interface to submit transfers, using DMA descriptors. The structure of the DMA descriptor is as follows: struct dma_desc { u32 flags, u32 id, u64 dest_addr, u64 src_addr, u64 next_sg_addr, u32 y_len, u32 x_len, u32 src_stride, u32 dst_stride, }; The 'flags' field currently offers two control bits: - bit 0: if set, the transfer will complete after this last descriptor is processed, and the DMA core will go back to idle state; if cleared, the next DMA descriptor pointed to by 'next_sg_addr' will be loaded. - bit 1: if set, an end-of-transfer interrupt will be raised after the memory segment pointed to by this descriptor has been transferred. The 'id' field corresponds to an identifier of the descriptor. The 'dest_addr' and 'src_addr' contain the destination and source addresses to use for the transfer, respectively. The 'x_len' field contains the number of bytes to transfer, minus one. The 'y_len', 'src_stride' and 'dst_stride' fields are only useful for 2D transfers, and should be set to zero if 2D transfers are not required. To start a transfer, the address of the first DMA descriptor must be written to register 0x47c and the HWDESC bit of CONTROL register must be set. The Scatter-Gather transfer is queued similarly to the simple transfers, by writing 1 in TRANSFER_SUBMIT. The Scatter-Gather interface has a dedicated AXI-MM bus configured for read transfers, with its own dedicated clock, which can be asynchronous. The Scatter-Gather reset is generated by the reset manager to reset the logic after completing any pending transactions on the bus. When the Scatter-Gather is enabled during runtime, the legacy cyclic functionality of the DMA is disabled. Signed-off-by: Ionut Podgoreanu <ionut.podgoreanu@analog.com>
2023-08-10 10:10:24 +00:00
.sg_clk (sg_clk),
.sg_ext_resetn (sg_ext_resetn),
.sg_resetn (sg_resetn),
.sg_enable (sg_enable),
.sg_enabled (sg_enabled),
libraries: Update modules according to guideline * Added header license for the files that didn't have * Modified parentheses * Removed extra spaces at the end of lines * Fixed parameters list to be each parameter on its line * Deleted lines after endmodule and consecutive empty lines * Fixed indentation Signed-off-by: Iulia Moldovan <iulia.moldovan@analog.com>
2022-04-08 10:21:52 +00:00
.dbg_status (dbg_status));
/*
* Things become a lot easier if we gate incoming requests in a central place
* before they are propagated downstream. Otherwise we'd need to take special
* care to not accidentally accept requests while the DMA is going through a
* shutdown and reset phase.
*/
assign req_valid_gated = req_enable & req_valid;
assign req_ready = req_enable & req_ready_gated;
axi_dmac: Add support for DMA Scatter-Gather This commit introduces a different interface to submit transfers, using DMA descriptors. The structure of the DMA descriptor is as follows: struct dma_desc { u32 flags, u32 id, u64 dest_addr, u64 src_addr, u64 next_sg_addr, u32 y_len, u32 x_len, u32 src_stride, u32 dst_stride, }; The 'flags' field currently offers two control bits: - bit 0: if set, the transfer will complete after this last descriptor is processed, and the DMA core will go back to idle state; if cleared, the next DMA descriptor pointed to by 'next_sg_addr' will be loaded. - bit 1: if set, an end-of-transfer interrupt will be raised after the memory segment pointed to by this descriptor has been transferred. The 'id' field corresponds to an identifier of the descriptor. The 'dest_addr' and 'src_addr' contain the destination and source addresses to use for the transfer, respectively. The 'x_len' field contains the number of bytes to transfer, minus one. The 'y_len', 'src_stride' and 'dst_stride' fields are only useful for 2D transfers, and should be set to zero if 2D transfers are not required. To start a transfer, the address of the first DMA descriptor must be written to register 0x47c and the HWDESC bit of CONTROL register must be set. The Scatter-Gather transfer is queued similarly to the simple transfers, by writing 1 in TRANSFER_SUBMIT. The Scatter-Gather interface has a dedicated AXI-MM bus configured for read transfers, with its own dedicated clock, which can be asynchronous. The Scatter-Gather reset is generated by the reset manager to reset the logic after completing any pending transactions on the bus. When the Scatter-Gather is enabled during runtime, the legacy cyclic functionality of the DMA is disabled. Signed-off-by: Ionut Podgoreanu <ionut.podgoreanu@analog.com>
2023-08-10 10:10:24 +00:00
assign req_eot = ctrl_hwdesc ? (dma_eot & dma_sg_hwdesc_eot) : dma_eot;
assign req_sg_desc_id = ctrl_hwdesc ? dma_sg_hwdesc_id : 'h00;
assign dma_sg_in_req_valid = ctrl_hwdesc ? req_valid_gated : 1'b0;
/* SG Interface */
generate if (DMA_SG_TRANSFER == 1) begin
dmac_sg #(
.DMA_AXI_ADDR_WIDTH(DMA_AXI_ADDR_WIDTH),
.DMA_DATA_WIDTH(DMA_DATA_WIDTH_SG),
.DMA_LENGTH_WIDTH(DMA_LENGTH_WIDTH),
.AXI_LENGTH_WIDTH(AXI_LENGTH_WIDTH_SG),
.BYTES_PER_BEAT_WIDTH_DEST(BYTES_PER_BEAT_WIDTH_DEST),
.BYTES_PER_BEAT_WIDTH_SRC(BYTES_PER_BEAT_WIDTH_SRC),
.BYTES_PER_BEAT_WIDTH_SG(BYTES_PER_BEAT_WIDTH_SG),
.ASYNC_CLK_REQ_SG(ASYNC_CLK_REQ_SG)
) i_dmac_sg (
.req_clk(req_clk),
.req_resetn(req_resetn),
.req_enable(req_enable),
.sg_clk(sg_clk),
.sg_ext_resetn(sg_ext_resetn),
.sg_resetn(sg_resetn),
.sg_enable(sg_enable),
.sg_enabled(sg_enabled),
.req_in_valid(dma_sg_in_req_valid),
.req_in_ready(dma_sg_in_req_ready),
.req_out_valid(dma_sg_out_req_valid),
.req_out_ready(dma_sg_out_req_ready),
.req_desc_address(req_sg_address),
.out_dest_address(dma_sg_out_dest_address),
.out_src_address(dma_sg_out_src_address),
.out_x_length(dma_sg_x_length),
.out_y_length(dma_sg_y_length),
.out_dest_stride(dma_sg_dst_stride),
.out_src_stride(dma_sg_src_stride),
.resp_out_id(dma_sg_hwdesc_id),
.resp_out_eot(dma_sg_hwdesc_eot),
.resp_in_valid(dma_eot),
.m_axi_aclk(m_sg_axi_aclk),
.m_axi_aresetn(m_sg_axi_aresetn),
.m_axi_arready(m_sg_axi_arready),
.m_axi_arvalid(m_sg_axi_arvalid),
.m_axi_araddr(m_sg_axi_araddr),
.m_axi_arlen(m_sg_axi_arlen),
.m_axi_arsize(m_sg_axi_arsize),
.m_axi_arburst(m_sg_axi_arburst),
.m_axi_arprot(m_sg_axi_arprot),
.m_axi_arcache(m_sg_axi_arcache),
.m_axi_rdata(m_sg_axi_rdata),
.m_axi_rlast(m_sg_axi_rlast),
.m_axi_rready(m_sg_axi_rready),
.m_axi_rvalid(m_sg_axi_rvalid),
.m_axi_rresp(m_sg_axi_rresp));
end else begin
assign sg_clk = 1'b0;
assign sg_ext_resetn = 1'b0;
assign sg_enabled = 1'b0;
assign dma_sg_in_req_ready = 1'b0;
assign dma_sg_out_req_valid = 1'b0;
assign dma_sg_hwdesc_eot = 1'b0;
assign dma_sg_out_dest_address = 'h00;
assign dma_sg_out_src_address = 'h00;
assign dma_sg_x_length = 'h00;
assign dma_sg_y_length = 'h00;
assign dma_sg_dst_stride = 'h00;
assign dma_sg_src_stride = 'h00;
assign dma_sg_hwdesc_id = 'h00;
end endgenerate
/* 2D Interface */
libraries: Update modules according to guideline * Added header license for the files that didn't have * Modified parentheses * Removed extra spaces at the end of lines * Fixed parameters list to be each parameter on its line * Deleted lines after endmodule and consecutive empty lines * Fixed indentation Signed-off-by: Iulia Moldovan <iulia.moldovan@analog.com>
2022-04-08 10:21:52 +00:00
generate if (DMA_2D_TRANSFER == 1) begin
axi_dmac: Add support for DMA Scatter-Gather This commit introduces a different interface to submit transfers, using DMA descriptors. The structure of the DMA descriptor is as follows: struct dma_desc { u32 flags, u32 id, u64 dest_addr, u64 src_addr, u64 next_sg_addr, u32 y_len, u32 x_len, u32 src_stride, u32 dst_stride, }; The 'flags' field currently offers two control bits: - bit 0: if set, the transfer will complete after this last descriptor is processed, and the DMA core will go back to idle state; if cleared, the next DMA descriptor pointed to by 'next_sg_addr' will be loaded. - bit 1: if set, an end-of-transfer interrupt will be raised after the memory segment pointed to by this descriptor has been transferred. The 'id' field corresponds to an identifier of the descriptor. The 'dest_addr' and 'src_addr' contain the destination and source addresses to use for the transfer, respectively. The 'x_len' field contains the number of bytes to transfer, minus one. The 'y_len', 'src_stride' and 'dst_stride' fields are only useful for 2D transfers, and should be set to zero if 2D transfers are not required. To start a transfer, the address of the first DMA descriptor must be written to register 0x47c and the HWDESC bit of CONTROL register must be set. The Scatter-Gather transfer is queued similarly to the simple transfers, by writing 1 in TRANSFER_SUBMIT. The Scatter-Gather interface has a dedicated AXI-MM bus configured for read transfers, with its own dedicated clock, which can be asynchronous. The Scatter-Gather reset is generated by the reset manager to reset the logic after completing any pending transactions on the bus. When the Scatter-Gather is enabled during runtime, the legacy cyclic functionality of the DMA is disabled. Signed-off-by: Ionut Podgoreanu <ionut.podgoreanu@analog.com>
2023-08-10 10:10:24 +00:00
wire [DMA_AXI_ADDR_WIDTH-1:BYTES_PER_BEAT_WIDTH_DEST] dma_2d_dest_address;
wire [DMA_AXI_ADDR_WIDTH-1:BYTES_PER_BEAT_WIDTH_SRC] dma_2d_src_address;
wire [DMA_LENGTH_WIDTH-1:0] dma_2d_x_length;
wire [DMA_LENGTH_WIDTH-1:0] dma_2d_y_length;
wire [DMA_LENGTH_WIDTH-1:0] dma_2d_src_stride;
wire [DMA_LENGTH_WIDTH-1:0] dma_2d_dst_stride;
wire dma_2d_eot;
wire dma_2d_req_valid;
wire dma_2d_req_ready;
assign dma_2d_dest_address = ctrl_hwdesc ? dma_sg_out_dest_address : req_dest_address;
assign dma_2d_src_address = ctrl_hwdesc ? dma_sg_out_src_address : req_src_address;
assign dma_2d_x_length = ctrl_hwdesc ? dma_sg_x_length : req_x_length;
assign dma_2d_y_length = ctrl_hwdesc ? dma_sg_y_length : req_y_length;
assign dma_2d_src_stride = ctrl_hwdesc ? dma_sg_src_stride : req_src_stride;
assign dma_2d_dst_stride = ctrl_hwdesc ? dma_sg_dst_stride : req_dest_stride;
assign dma_2d_req_valid = ctrl_hwdesc ? dma_sg_out_req_valid : req_valid_gated;
assign req_ready_gated = ctrl_hwdesc ? dma_sg_in_req_ready : dma_2d_req_ready;
assign dma_eot = dma_2d_eot;
assign dma_sg_out_req_ready = dma_2d_req_ready;
libraries: Update modules according to guideline * Added header license for the files that didn't have * Modified parentheses * Removed extra spaces at the end of lines * Fixed parameters list to be each parameter on its line * Deleted lines after endmodule and consecutive empty lines * Fixed indentation Signed-off-by: Iulia Moldovan <iulia.moldovan@analog.com>
2022-04-08 10:21:52 +00:00
dmac_2d_transfer #(
.DMA_AXI_ADDR_WIDTH(DMA_AXI_ADDR_WIDTH),
.DMA_LENGTH_WIDTH (DMA_LENGTH_WIDTH),
.BYTES_PER_BURST_WIDTH (BYTES_PER_BURST_WIDTH),
.BYTES_PER_BEAT_WIDTH_DEST (BYTES_PER_BEAT_WIDTH_DEST),
.BYTES_PER_BEAT_WIDTH_SRC (BYTES_PER_BEAT_WIDTH_SRC)
) i_2d_transfer (
.req_aclk (req_clk),
.req_aresetn (req_resetn),
axi_dmac: Add support for DMA Scatter-Gather This commit introduces a different interface to submit transfers, using DMA descriptors. The structure of the DMA descriptor is as follows: struct dma_desc { u32 flags, u32 id, u64 dest_addr, u64 src_addr, u64 next_sg_addr, u32 y_len, u32 x_len, u32 src_stride, u32 dst_stride, }; The 'flags' field currently offers two control bits: - bit 0: if set, the transfer will complete after this last descriptor is processed, and the DMA core will go back to idle state; if cleared, the next DMA descriptor pointed to by 'next_sg_addr' will be loaded. - bit 1: if set, an end-of-transfer interrupt will be raised after the memory segment pointed to by this descriptor has been transferred. The 'id' field corresponds to an identifier of the descriptor. The 'dest_addr' and 'src_addr' contain the destination and source addresses to use for the transfer, respectively. The 'x_len' field contains the number of bytes to transfer, minus one. The 'y_len', 'src_stride' and 'dst_stride' fields are only useful for 2D transfers, and should be set to zero if 2D transfers are not required. To start a transfer, the address of the first DMA descriptor must be written to register 0x47c and the HWDESC bit of CONTROL register must be set. The Scatter-Gather transfer is queued similarly to the simple transfers, by writing 1 in TRANSFER_SUBMIT. The Scatter-Gather interface has a dedicated AXI-MM bus configured for read transfers, with its own dedicated clock, which can be asynchronous. The Scatter-Gather reset is generated by the reset manager to reset the logic after completing any pending transactions on the bus. When the Scatter-Gather is enabled during runtime, the legacy cyclic functionality of the DMA is disabled. Signed-off-by: Ionut Podgoreanu <ionut.podgoreanu@analog.com>
2023-08-10 10:10:24 +00:00
.req_eot (dma_2d_eot),
libraries: Update modules according to guideline * Added header license for the files that didn't have * Modified parentheses * Removed extra spaces at the end of lines * Fixed parameters list to be each parameter on its line * Deleted lines after endmodule and consecutive empty lines * Fixed indentation Signed-off-by: Iulia Moldovan <iulia.moldovan@analog.com>
2022-04-08 10:21:52 +00:00
.req_measured_burst_length (req_measured_burst_length),
.req_response_partial (req_response_partial),
.req_response_valid (req_response_valid),
.req_response_ready (req_response_ready),
axi_dmac: Add support for DMA Scatter-Gather This commit introduces a different interface to submit transfers, using DMA descriptors. The structure of the DMA descriptor is as follows: struct dma_desc { u32 flags, u32 id, u64 dest_addr, u64 src_addr, u64 next_sg_addr, u32 y_len, u32 x_len, u32 src_stride, u32 dst_stride, }; The 'flags' field currently offers two control bits: - bit 0: if set, the transfer will complete after this last descriptor is processed, and the DMA core will go back to idle state; if cleared, the next DMA descriptor pointed to by 'next_sg_addr' will be loaded. - bit 1: if set, an end-of-transfer interrupt will be raised after the memory segment pointed to by this descriptor has been transferred. The 'id' field corresponds to an identifier of the descriptor. The 'dest_addr' and 'src_addr' contain the destination and source addresses to use for the transfer, respectively. The 'x_len' field contains the number of bytes to transfer, minus one. The 'y_len', 'src_stride' and 'dst_stride' fields are only useful for 2D transfers, and should be set to zero if 2D transfers are not required. To start a transfer, the address of the first DMA descriptor must be written to register 0x47c and the HWDESC bit of CONTROL register must be set. The Scatter-Gather transfer is queued similarly to the simple transfers, by writing 1 in TRANSFER_SUBMIT. The Scatter-Gather interface has a dedicated AXI-MM bus configured for read transfers, with its own dedicated clock, which can be asynchronous. The Scatter-Gather reset is generated by the reset manager to reset the logic after completing any pending transactions on the bus. When the Scatter-Gather is enabled during runtime, the legacy cyclic functionality of the DMA is disabled. Signed-off-by: Ionut Podgoreanu <ionut.podgoreanu@analog.com>
2023-08-10 10:10:24 +00:00
.req_valid (dma_2d_req_valid),
.req_ready (dma_2d_req_ready),
.req_dest_address (dma_2d_dest_address),
.req_src_address (dma_2d_src_address),
.req_x_length (dma_2d_x_length),
.req_y_length (dma_2d_y_length),
.req_dest_stride (dma_2d_dst_stride),
.req_src_stride (dma_2d_src_stride),
libraries: Update modules according to guideline * Added header license for the files that didn't have * Modified parentheses * Removed extra spaces at the end of lines * Fixed parameters list to be each parameter on its line * Deleted lines after endmodule and consecutive empty lines * Fixed indentation Signed-off-by: Iulia Moldovan <iulia.moldovan@analog.com>
2022-04-08 10:21:52 +00:00
.req_sync_transfer_start (req_sync_transfer_start),
.req_last (req_last),
.out_abort_req (abort_req),
.out_req_valid (dma_req_valid),
.out_req_ready (dma_req_ready),
.out_req_dest_address (dma_req_dest_address),
.out_req_src_address (dma_req_src_address),
.out_req_length (dma_req_length),
.out_req_sync_transfer_start (dma_req_sync_transfer_start),
.out_req_last (dma_req_last),
.out_eot (dma_req_eot),
.out_measured_burst_length (dma_req_measured_burst_length),
.out_response_partial (dma_response_partial),
.out_response_valid (dma_response_valid),
.out_response_ready (dma_response_ready));
end else begin
/* Request */
axi_dmac: Add support for DMA Scatter-Gather This commit introduces a different interface to submit transfers, using DMA descriptors. The structure of the DMA descriptor is as follows: struct dma_desc { u32 flags, u32 id, u64 dest_addr, u64 src_addr, u64 next_sg_addr, u32 y_len, u32 x_len, u32 src_stride, u32 dst_stride, }; The 'flags' field currently offers two control bits: - bit 0: if set, the transfer will complete after this last descriptor is processed, and the DMA core will go back to idle state; if cleared, the next DMA descriptor pointed to by 'next_sg_addr' will be loaded. - bit 1: if set, an end-of-transfer interrupt will be raised after the memory segment pointed to by this descriptor has been transferred. The 'id' field corresponds to an identifier of the descriptor. The 'dest_addr' and 'src_addr' contain the destination and source addresses to use for the transfer, respectively. The 'x_len' field contains the number of bytes to transfer, minus one. The 'y_len', 'src_stride' and 'dst_stride' fields are only useful for 2D transfers, and should be set to zero if 2D transfers are not required. To start a transfer, the address of the first DMA descriptor must be written to register 0x47c and the HWDESC bit of CONTROL register must be set. The Scatter-Gather transfer is queued similarly to the simple transfers, by writing 1 in TRANSFER_SUBMIT. The Scatter-Gather interface has a dedicated AXI-MM bus configured for read transfers, with its own dedicated clock, which can be asynchronous. The Scatter-Gather reset is generated by the reset manager to reset the logic after completing any pending transactions on the bus. When the Scatter-Gather is enabled during runtime, the legacy cyclic functionality of the DMA is disabled. Signed-off-by: Ionut Podgoreanu <ionut.podgoreanu@analog.com>
2023-08-10 10:10:24 +00:00
assign dma_req_valid = ctrl_hwdesc ? dma_sg_out_req_valid : req_valid_gated;
assign req_ready_gated = ctrl_hwdesc ? dma_sg_in_req_ready : dma_req_ready;
assign dma_eot = dma_req_eot;
assign dma_sg_out_req_ready = dma_req_ready;
assign dma_req_dest_address = ctrl_hwdesc ? dma_sg_out_dest_address : req_dest_address;
assign dma_req_src_address = ctrl_hwdesc ? dma_sg_out_src_address : req_src_address;
assign dma_req_length = ctrl_hwdesc ? dma_sg_x_length : req_x_length;
libraries: Update modules according to guideline * Added header license for the files that didn't have * Modified parentheses * Removed extra spaces at the end of lines * Fixed parameters list to be each parameter on its line * Deleted lines after endmodule and consecutive empty lines * Fixed indentation Signed-off-by: Iulia Moldovan <iulia.moldovan@analog.com>
2022-04-08 10:21:52 +00:00
assign dma_req_sync_transfer_start = req_sync_transfer_start;
assign dma_req_last = req_last;
/* Response */
assign req_measured_burst_length = dma_req_measured_burst_length;
assign req_response_partial = dma_response_partial;
assign req_response_valid = dma_response_valid;
assign dma_response_ready = req_response_ready;
end endgenerate
request_arb #(
.DMA_DATA_WIDTH_SRC (DMA_DATA_WIDTH_SRC),
.DMA_DATA_WIDTH_DEST (DMA_DATA_WIDTH_DEST),
.DMA_LENGTH_WIDTH (DMA_LENGTH_WIDTH),
.DMA_LENGTH_ALIGN (DMA_LENGTH_ALIGN),
.BYTES_PER_BEAT_WIDTH_DEST (BYTES_PER_BEAT_WIDTH_DEST),
.BYTES_PER_BEAT_WIDTH_SRC (BYTES_PER_BEAT_WIDTH_SRC),
.DMA_TYPE_DEST (DMA_TYPE_DEST),
.DMA_TYPE_SRC (DMA_TYPE_SRC),
.DMA_AXI_ADDR_WIDTH (DMA_AXI_ADDR_WIDTH),
.ASYNC_CLK_REQ_SRC (ASYNC_CLK_REQ_SRC),
.ASYNC_CLK_SRC_DEST (ASYNC_CLK_SRC_DEST),
.ASYNC_CLK_DEST_REQ (ASYNC_CLK_DEST_REQ),
.AXI_SLICE_DEST (AXI_SLICE_DEST),
.AXI_SLICE_SRC (AXI_SLICE_SRC),
.MAX_BYTES_PER_BURST (MAX_BYTES_PER_BURST),
.BYTES_PER_BURST_WIDTH (BYTES_PER_BURST_WIDTH),
.FIFO_SIZE (FIFO_SIZE),
.ID_WIDTH (ID_WIDTH),
.AXI_LENGTH_WIDTH_DEST (AXI_LENGTH_WIDTH_DEST),
.AXI_LENGTH_WIDTH_SRC (AXI_LENGTH_WIDTH_SRC),
.ENABLE_DIAGNOSTICS_IF(ENABLE_DIAGNOSTICS_IF),
.ALLOW_ASYM_MEM (ALLOW_ASYM_MEM),
.CACHE_COHERENT_DEST(CACHE_COHERENT_DEST)
) i_request_arb (
.req_clk (req_clk),
.req_resetn (req_resetn),
.req_valid (dma_req_valid),
.req_ready (dma_req_ready),
.req_dest_address (dma_req_dest_address),
.req_src_address (dma_req_src_address),
.req_length (dma_req_length),
.req_xlast (dma_req_last),
.req_sync_transfer_start (dma_req_sync_transfer_start),
.eot (dma_req_eot),
.measured_burst_length(dma_req_measured_burst_length),
.response_partial (dma_response_partial),
.response_valid (dma_response_valid),
.response_ready (dma_response_ready),
.abort_req (abort_req),
.req_enable (req_enable),
.dest_clk (dest_clk),
.dest_ext_resetn (dest_ext_resetn),
.dest_resetn (dest_resetn),
.dest_enable (dest_enable),
.dest_enabled (dest_enabled),
.src_clk (src_clk),
.src_ext_resetn (src_ext_resetn),
.src_resetn (src_resetn),
.src_enable (src_enable),
.src_enabled (src_enabled),
.m_dest_axi_aclk (m_dest_axi_aclk),
.m_dest_axi_aresetn (m_dest_axi_aresetn),
.m_src_axi_aclk (m_src_axi_aclk),
.m_src_axi_aresetn (m_src_axi_aresetn),
.m_axi_awvalid (m_axi_awvalid),
.m_axi_awready (m_axi_awready),
.m_axi_awaddr (m_axi_awaddr),
.m_axi_awlen (m_axi_awlen),
.m_axi_awsize (m_axi_awsize),
.m_axi_awburst (m_axi_awburst),
.m_axi_awprot (m_axi_awprot),
.m_axi_awcache (m_axi_awcache),
.m_axi_wvalid (m_axi_wvalid),
.m_axi_wready (m_axi_wready),
.m_axi_wdata (m_axi_wdata),
.m_axi_wstrb (m_axi_wstrb),
.m_axi_wlast (m_axi_wlast),
.m_axi_bvalid (m_axi_bvalid),
.m_axi_bready (m_axi_bready),
.m_axi_bresp (m_axi_bresp),
.m_axi_arvalid (m_axi_arvalid),
.m_axi_arready (m_axi_arready),
.m_axi_araddr (m_axi_araddr),
.m_axi_arlen (m_axi_arlen),
.m_axi_arsize (m_axi_arsize),
.m_axi_arburst (m_axi_arburst),
.m_axi_arprot (m_axi_arprot),
.m_axi_arcache (m_axi_arcache),
.m_axi_rready (m_axi_rready),
.m_axi_rvalid (m_axi_rvalid),
.m_axi_rdata (m_axi_rdata),
.m_axi_rlast (m_axi_rlast),
.m_axi_rresp (m_axi_rresp),
.s_axis_aclk (s_axis_aclk),
.s_axis_ready (s_axis_ready),
.s_axis_valid (s_axis_valid),
.s_axis_data (s_axis_data),
.s_axis_user (s_axis_user),
.s_axis_last (s_axis_last),
.s_axis_xfer_req (s_axis_xfer_req),
.m_axis_aclk (m_axis_aclk),
.m_axis_ready (m_axis_ready),
.m_axis_valid (m_axis_valid),
.m_axis_data (m_axis_data),
.m_axis_last (m_axis_last),
.m_axis_xfer_req (m_axis_xfer_req),
.fifo_wr_clk (fifo_wr_clk),
.fifo_wr_en (fifo_wr_en),
.fifo_wr_din (fifo_wr_din),
.fifo_wr_overflow (fifo_wr_overflow),
.fifo_wr_sync (fifo_wr_sync),
.fifo_wr_xfer_req (fifo_wr_xfer_req),
.fifo_rd_clk (fifo_rd_clk),
.fifo_rd_en (fifo_rd_en),
.fifo_rd_valid (fifo_rd_valid),
.fifo_rd_dout (fifo_rd_dout),
.fifo_rd_underflow (fifo_rd_underflow),
.fifo_rd_xfer_req (fifo_rd_xfer_req),
.dbg_dest_request_id (dbg_dest_request_id),
.dbg_dest_address_id (dbg_dest_address_id),
.dbg_dest_data_id (dbg_dest_data_id),
.dbg_dest_response_id (dbg_dest_response_id),
.dbg_src_request_id (dbg_src_request_id),
.dbg_src_address_id (dbg_src_address_id),
.dbg_src_data_id (dbg_src_data_id),
.dbg_src_response_id (dbg_src_response_id),
.dest_diag_level_bursts(dest_diag_level_bursts));
axi_dmac: Split transfer handling into separate sub-module Move the transfer logic, including the 2d module, into its own sub-module. This allows testing of the full transfer logic independently of the register map logic. The top-level module now only instantiates the register map and transfer module, but does not have any logic on its own. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
2017-08-05 05:57:38 +00:00
endmodule