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authorLibravatar Linus Torvalds <torvalds@linux-foundation.org>2023-02-21 18:24:12 -0800
committerLibravatar Linus Torvalds <torvalds@linux-foundation.org>2023-02-21 18:24:12 -0800
commit5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 (patch)
treecc5c2d0a898769fd59549594fedb3ee6f84e59a0 /drivers/dma/dw-axi-dmac/dw-axi-dmac.h
downloadlinux-5b7c4cabbb65f5c469464da6c5f614cbd7f730f2.tar.gz
linux-5b7c4cabbb65f5c469464da6c5f614cbd7f730f2.zip
Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-nextgrafted
Pull networking updates from Jakub Kicinski: "Core: - Add dedicated kmem_cache for typical/small skb->head, avoid having to access struct page at kfree time, and improve memory use. - Introduce sysctl to set default RPS configuration for new netdevs. - Define Netlink protocol specification format which can be used to describe messages used by each family and auto-generate parsers. Add tools for generating kernel data structures and uAPI headers. - Expose all net/core sysctls inside netns. - Remove 4s sleep in netpoll if carrier is instantly detected on boot. - Add configurable limit of MDB entries per port, and port-vlan. - Continue populating drop reasons throughout the stack. - Retire a handful of legacy Qdiscs and classifiers. Protocols: - Support IPv4 big TCP (TSO frames larger than 64kB). - Add IP_LOCAL_PORT_RANGE socket option, to control local port range on socket by socket basis. - Track and report in procfs number of MPTCP sockets used. - Support mixing IPv4 and IPv6 flows in the in-kernel MPTCP path manager. - IPv6: don't check net.ipv6.route.max_size and rely on garbage collection to free memory (similarly to IPv4). - Support Penultimate Segment Pop (PSP) flavor in SRv6 (RFC8986). - ICMP: add per-rate limit counters. - Add support for user scanning requests in ieee802154. - Remove static WEP support. - Support minimal Wi-Fi 7 Extremely High Throughput (EHT) rate reporting. - WiFi 7 EHT channel puncturing support (client & AP). BPF: - Add a rbtree data structure following the "next-gen data structure" precedent set by recently added linked list, that is, by using kfunc + kptr instead of adding a new BPF map type. - Expose XDP hints via kfuncs with initial support for RX hash and timestamp metadata. - Add BPF_F_NO_TUNNEL_KEY extension to bpf_skb_set_tunnel_key to better support decap on GRE tunnel devices not operating in collect metadata. - Improve x86 JIT's codegen for PROBE_MEM runtime error checks. - Remove the need for trace_printk_lock for bpf_trace_printk and bpf_trace_vprintk helpers. - Extend libbpf's bpf_tracing.h support for tracing arguments of kprobes/uprobes and syscall as a special case. - Significantly reduce the search time for module symbols by livepatch and BPF. - Enable cpumasks to be used as kptrs, which is useful for tracing programs tracking which tasks end up running on which CPUs in different time intervals. - Add support for BPF trampoline on s390x and riscv64. - Add capability to export the XDP features supported by the NIC. - Add __bpf_kfunc tag for marking kernel functions as kfuncs. - Add cgroup.memory=nobpf kernel parameter option to disable BPF memory accounting for container environments. Netfilter: - Remove the CLUSTERIP target. It has been marked as obsolete for years, and we still have WARN splats wrt races of the out-of-band /proc interface installed by this target. - Add 'destroy' commands to nf_tables. They are identical to the existing 'delete' commands, but do not return an error if the referenced object (set, chain, rule...) did not exist. Driver API: - Improve cpumask_local_spread() locality to help NICs set the right IRQ affinity on AMD platforms. - Separate C22 and C45 MDIO bus transactions more clearly. - Introduce new DCB table to control DSCP rewrite on egress. - Support configuration of Physical Layer Collision Avoidance (PLCA) Reconciliation Sublayer (RS) (802.3cg-2019). Modern version of shared medium Ethernet. - Support for MAC Merge layer (IEEE 802.3-2018 clause 99). Allowing preemption of low priority frames by high priority frames. - Add support for controlling MACSec offload using netlink SET. - Rework devlink instance refcounts to allow registration and de-registration under the instance lock. Split the code into multiple files, drop some of the unnecessarily granular locks and factor out common parts of netlink operation handling. - Add TX frame aggregation parameters (for USB drivers). - Add a new attr TCA_EXT_WARN_MSG to report TC (offload) warning messages with notifications for debug. - Allow offloading of UDP NEW connections via act_ct. - Add support for per action HW stats in TC. - Support hardware miss to TC action (continue processing in SW from a specific point in the action chain). - Warn if old Wireless Extension user space interface is used with modern cfg80211/mac80211 drivers. Do not support Wireless Extensions for Wi-Fi 7 devices at all. Everyone should switch to using nl80211 interface instead. - Improve the CAN bit timing configuration. Use extack to return error messages directly to user space, update the SJW handling, including the definition of a new default value that will benefit CAN-FD controllers, by increasing their oscillator tolerance. New hardware / drivers: - Ethernet: - nVidia BlueField-3 support (control traffic driver) - Ethernet support for imx93 SoCs - Motorcomm yt8531 gigabit Ethernet PHY - onsemi NCN26000 10BASE-T1S PHY (with support for PLCA) - Microchip LAN8841 PHY (incl. cable diagnostics and PTP) - Amlogic gxl MDIO mux - WiFi: - RealTek RTL8188EU (rtl8xxxu) - Qualcomm Wi-Fi 7 devices (ath12k) - CAN: - Renesas R-Car V4H Drivers: - Bluetooth: - Set Per Platform Antenna Gain (PPAG) for Intel controllers. - Ethernet NICs: - Intel (1G, igc): - support TSN / Qbv / packet scheduling features of i226 model - Intel (100G, ice): - use GNSS subsystem instead of TTY - multi-buffer XDP support - extend support for GPIO pins to E823 devices - nVidia/Mellanox: - update the shared buffer configuration on PFC commands - implement PTP adjphase function for HW offset control - TC support for Geneve and GRE with VF tunnel offload - more efficient crypto key management method - multi-port eswitch support - Netronome/Corigine: - add DCB IEEE support - support IPsec offloading for NFP3800 - Freescale/NXP (enetc): - support XDP_REDIRECT for XDP non-linear buffers - improve reconfig, avoid link flap and waiting for idle - support MAC Merge layer - Other NICs: - sfc/ef100: add basic devlink support for ef100 - ionic: rx_push mode operation (writing descriptors via MMIO) - bnxt: use the auxiliary bus abstraction for RDMA - r8169: disable ASPM and reset bus in case of tx timeout - cpsw: support QSGMII mode for J721e CPSW9G - cpts: support pulse-per-second output - ngbe: add an mdio bus driver - usbnet: optimize usbnet_bh() by avoiding unnecessary queuing - r8152: handle devices with FW with NCM support - amd-xgbe: support 10Mbps, 2.5GbE speeds and rx-adaptation - virtio-net: support multi buffer XDP - virtio/vsock: replace virtio_vsock_pkt with sk_buff - tsnep: XDP support - Ethernet high-speed switches: - nVidia/Mellanox (mlxsw): - add support for latency TLV (in FW control messages) - Microchip (sparx5): - separate explicit and implicit traffic forwarding rules, make the implicit rules always active - add support for egress DSCP rewrite - IS0 VCAP support (Ingress Classification) - IS2 VCAP filters (protos, L3 addrs, L4 ports, flags, ToS etc.) - ES2 VCAP support (Egress Access Control) - support for Per-Stream Filtering and Policing (802.1Q, 8.6.5.1) - Ethernet embedded switches: - Marvell (mv88e6xxx): - add MAB (port auth) offload support - enable PTP receive for mv88e6390 - NXP (ocelot): - support MAC Merge layer - support for the the vsc7512 internal copper phys - Microchip: - lan9303: convert to PHYLINK - lan966x: support TC flower filter statistics - lan937x: PTP support for KSZ9563/KSZ8563 and LAN937x - lan937x: support Credit Based Shaper configuration - ksz9477: support Energy Efficient Ethernet - other: - qca8k: convert to regmap read/write API, use bulk operations - rswitch: Improve TX timestamp accuracy - Intel WiFi (iwlwifi): - EHT (Wi-Fi 7) rate reporting - STEP equalizer support: transfer some STEP (connection to radio on platforms with integrated wifi) related parameters from the BIOS to the firmware. - Qualcomm 802.11ax WiFi (ath11k): - IPQ5018 support - Fine Timing Measurement (FTM) responder role support - channel 177 support - MediaTek WiFi (mt76): - per-PHY LED support - mt7996: EHT (Wi-Fi 7) support - Wireless Ethernet Dispatch (WED) reset support - switch to using page pool allocator - RealTek WiFi (rtw89): - support new version of Bluetooth co-existance - Mobile: - rmnet: support TX aggregation" * tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1872 commits) page_pool: add a comment explaining the fragment counter usage net: ethtool: fix __ethtool_dev_mm_supported() implementation ethtool: pse-pd: Fix double word in comments xsk: add linux/vmalloc.h to xsk.c sefltests: netdevsim: wait for devlink instance after netns removal selftest: fib_tests: Always cleanup before exit net/mlx5e: Align IPsec ASO result memory to be as required by hardware net/mlx5e: TC, Set CT miss to the specific ct action instance net/mlx5e: Rename CHAIN_TO_REG to MAPPED_OBJ_TO_REG net/mlx5: Refactor tc miss handling to a single function net/mlx5: Kconfig: Make tc offload depend on tc skb extension net/sched: flower: Support hardware miss to tc action net/sched: flower: Move filter handle initialization earlier net/sched: cls_api: Support hardware miss to tc action net/sched: Rename user cookie and act cookie sfc: fix builds without CONFIG_RTC_LIB sfc: clean up some inconsistent indentings net/mlx4_en: Introduce flexible array to silence overflow warning net: lan966x: Fix possible deadlock inside PTP net/ulp: Remove redundant ->clone() test in inet_clone_ulp(). ...
Diffstat (limited to 'drivers/dma/dw-axi-dmac/dw-axi-dmac.h')
-rw-r--r--drivers/dma/dw-axi-dmac/dw-axi-dmac.h399
1 files changed, 399 insertions, 0 deletions
diff --git a/drivers/dma/dw-axi-dmac/dw-axi-dmac.h b/drivers/dma/dw-axi-dmac/dw-axi-dmac.h
new file mode 100644
index 000000000..e9d5eb0fd
--- /dev/null
+++ b/drivers/dma/dw-axi-dmac/dw-axi-dmac.h
@@ -0,0 +1,399 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+// (C) 2017-2018 Synopsys, Inc. (www.synopsys.com)
+
+/*
+ * Synopsys DesignWare AXI DMA Controller driver.
+ *
+ * Author: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
+ */
+
+#ifndef _AXI_DMA_PLATFORM_H
+#define _AXI_DMA_PLATFORM_H
+
+#include <linux/bitops.h>
+#include <linux/clk.h>
+#include <linux/device.h>
+#include <linux/dmaengine.h>
+#include <linux/types.h>
+
+#include "../virt-dma.h"
+
+#define DMAC_MAX_CHANNELS 16
+#define DMAC_MAX_MASTERS 2
+#define DMAC_MAX_BLK_SIZE 0x200000
+
+struct dw_axi_dma_hcfg {
+ u32 nr_channels;
+ u32 nr_masters;
+ u32 m_data_width;
+ u32 block_size[DMAC_MAX_CHANNELS];
+ u32 priority[DMAC_MAX_CHANNELS];
+ /* maximum supported axi burst length */
+ u32 axi_rw_burst_len;
+ /* Register map for DMAX_NUM_CHANNELS <= 8 */
+ bool reg_map_8_channels;
+ bool restrict_axi_burst_len;
+};
+
+struct axi_dma_chan {
+ struct axi_dma_chip *chip;
+ void __iomem *chan_regs;
+ u8 id;
+ u8 hw_handshake_num;
+ atomic_t descs_allocated;
+
+ struct dma_pool *desc_pool;
+ struct virt_dma_chan vc;
+
+ struct axi_dma_desc *desc;
+ struct dma_slave_config config;
+ enum dma_transfer_direction direction;
+ bool cyclic;
+ /* these other elements are all protected by vc.lock */
+ bool is_paused;
+};
+
+struct dw_axi_dma {
+ struct dma_device dma;
+ struct dw_axi_dma_hcfg *hdata;
+ struct device_dma_parameters dma_parms;
+
+ /* channels */
+ struct axi_dma_chan *chan;
+};
+
+struct axi_dma_chip {
+ struct device *dev;
+ int irq;
+ void __iomem *regs;
+ void __iomem *apb_regs;
+ struct clk *core_clk;
+ struct clk *cfgr_clk;
+ struct dw_axi_dma *dw;
+};
+
+/* LLI == Linked List Item */
+struct __packed axi_dma_lli {
+ __le64 sar;
+ __le64 dar;
+ __le32 block_ts_lo;
+ __le32 block_ts_hi;
+ __le64 llp;
+ __le32 ctl_lo;
+ __le32 ctl_hi;
+ __le32 sstat;
+ __le32 dstat;
+ __le32 status_lo;
+ __le32 status_hi;
+ __le32 reserved_lo;
+ __le32 reserved_hi;
+};
+
+struct axi_dma_hw_desc {
+ struct axi_dma_lli *lli;
+ dma_addr_t llp;
+ u32 len;
+};
+
+struct axi_dma_desc {
+ struct axi_dma_hw_desc *hw_desc;
+
+ struct virt_dma_desc vd;
+ struct axi_dma_chan *chan;
+ u32 completed_blocks;
+ u32 length;
+ u32 period_len;
+};
+
+struct axi_dma_chan_config {
+ u8 dst_multblk_type;
+ u8 src_multblk_type;
+ u8 dst_per;
+ u8 src_per;
+ u8 tt_fc;
+ u8 prior;
+ u8 hs_sel_dst;
+ u8 hs_sel_src;
+};
+
+static inline struct device *dchan2dev(struct dma_chan *dchan)
+{
+ return &dchan->dev->device;
+}
+
+static inline struct device *chan2dev(struct axi_dma_chan *chan)
+{
+ return &chan->vc.chan.dev->device;
+}
+
+static inline struct axi_dma_desc *vd_to_axi_desc(struct virt_dma_desc *vd)
+{
+ return container_of(vd, struct axi_dma_desc, vd);
+}
+
+static inline struct axi_dma_chan *vc_to_axi_dma_chan(struct virt_dma_chan *vc)
+{
+ return container_of(vc, struct axi_dma_chan, vc);
+}
+
+static inline struct axi_dma_chan *dchan_to_axi_dma_chan(struct dma_chan *dchan)
+{
+ return vc_to_axi_dma_chan(to_virt_chan(dchan));
+}
+
+
+#define COMMON_REG_LEN 0x100
+#define CHAN_REG_LEN 0x100
+
+/* Common registers offset */
+#define DMAC_ID 0x000 /* R DMAC ID */
+#define DMAC_COMPVER 0x008 /* R DMAC Component Version */
+#define DMAC_CFG 0x010 /* R/W DMAC Configuration */
+#define DMAC_CHEN 0x018 /* R/W DMAC Channel Enable */
+#define DMAC_CHEN_L 0x018 /* R/W DMAC Channel Enable 00-31 */
+#define DMAC_CHEN_H 0x01C /* R/W DMAC Channel Enable 32-63 */
+#define DMAC_CHSUSPREG 0x020 /* R/W DMAC Channel Suspend */
+#define DMAC_CHABORTREG 0x028 /* R/W DMAC Channel Abort */
+#define DMAC_INTSTATUS 0x030 /* R DMAC Interrupt Status */
+#define DMAC_COMMON_INTCLEAR 0x038 /* W DMAC Interrupt Clear */
+#define DMAC_COMMON_INTSTATUS_ENA 0x040 /* R DMAC Interrupt Status Enable */
+#define DMAC_COMMON_INTSIGNAL_ENA 0x048 /* R/W DMAC Interrupt Signal Enable */
+#define DMAC_COMMON_INTSTATUS 0x050 /* R DMAC Interrupt Status */
+#define DMAC_RESET 0x058 /* R DMAC Reset Register1 */
+
+/* DMA channel registers offset */
+#define CH_SAR 0x000 /* R/W Chan Source Address */
+#define CH_DAR 0x008 /* R/W Chan Destination Address */
+#define CH_BLOCK_TS 0x010 /* R/W Chan Block Transfer Size */
+#define CH_CTL 0x018 /* R/W Chan Control */
+#define CH_CTL_L 0x018 /* R/W Chan Control 00-31 */
+#define CH_CTL_H 0x01C /* R/W Chan Control 32-63 */
+#define CH_CFG 0x020 /* R/W Chan Configuration */
+#define CH_CFG_L 0x020 /* R/W Chan Configuration 00-31 */
+#define CH_CFG_H 0x024 /* R/W Chan Configuration 32-63 */
+#define CH_LLP 0x028 /* R/W Chan Linked List Pointer */
+#define CH_STATUS 0x030 /* R Chan Status */
+#define CH_SWHSSRC 0x038 /* R/W Chan SW Handshake Source */
+#define CH_SWHSDST 0x040 /* R/W Chan SW Handshake Destination */
+#define CH_BLK_TFR_RESUMEREQ 0x048 /* W Chan Block Transfer Resume Req */
+#define CH_AXI_ID 0x050 /* R/W Chan AXI ID */
+#define CH_AXI_QOS 0x058 /* R/W Chan AXI QOS */
+#define CH_SSTAT 0x060 /* R Chan Source Status */
+#define CH_DSTAT 0x068 /* R Chan Destination Status */
+#define CH_SSTATAR 0x070 /* R/W Chan Source Status Fetch Addr */
+#define CH_DSTATAR 0x078 /* R/W Chan Destination Status Fetch Addr */
+#define CH_INTSTATUS_ENA 0x080 /* R/W Chan Interrupt Status Enable */
+#define CH_INTSTATUS 0x088 /* R/W Chan Interrupt Status */
+#define CH_INTSIGNAL_ENA 0x090 /* R/W Chan Interrupt Signal Enable */
+#define CH_INTCLEAR 0x098 /* W Chan Interrupt Clear */
+
+/* These Apb registers are used by Intel KeemBay SoC */
+#define DMAC_APB_CFG 0x000 /* DMAC Apb Configuration Register */
+#define DMAC_APB_STAT 0x004 /* DMAC Apb Status Register */
+#define DMAC_APB_DEBUG_STAT_0 0x008 /* DMAC Apb Debug Status Register 0 */
+#define DMAC_APB_DEBUG_STAT_1 0x00C /* DMAC Apb Debug Status Register 1 */
+#define DMAC_APB_HW_HS_SEL_0 0x010 /* DMAC Apb HW HS register 0 */
+#define DMAC_APB_HW_HS_SEL_1 0x014 /* DMAC Apb HW HS register 1 */
+#define DMAC_APB_LPI 0x018 /* DMAC Apb Low Power Interface Reg */
+#define DMAC_APB_BYTE_WR_CH_EN 0x01C /* DMAC Apb Byte Write Enable */
+#define DMAC_APB_HALFWORD_WR_CH_EN 0x020 /* DMAC Halfword write enables */
+
+#define UNUSED_CHANNEL 0x3F /* Set unused DMA channel to 0x3F */
+#define DMA_APB_HS_SEL_BIT_SIZE 0x08 /* HW handshake bits per channel */
+#define DMA_APB_HS_SEL_MASK 0xFF /* HW handshake select masks */
+#define MAX_BLOCK_SIZE 0x1000 /* 1024 blocks * 4 bytes data width */
+#define DMA_REG_MAP_CH_REF 0x08 /* Channel count to choose register map */
+
+/* DMAC_CFG */
+#define DMAC_EN_POS 0
+#define DMAC_EN_MASK BIT(DMAC_EN_POS)
+
+#define INT_EN_POS 1
+#define INT_EN_MASK BIT(INT_EN_POS)
+
+/* DMAC_CHEN */
+#define DMAC_CHAN_EN_SHIFT 0
+#define DMAC_CHAN_EN_WE_SHIFT 8
+
+#define DMAC_CHAN_SUSP_SHIFT 16
+#define DMAC_CHAN_SUSP_WE_SHIFT 24
+
+/* DMAC_CHEN2 */
+#define DMAC_CHAN_EN2_WE_SHIFT 16
+
+/* DMAC_CHSUSP */
+#define DMAC_CHAN_SUSP2_SHIFT 0
+#define DMAC_CHAN_SUSP2_WE_SHIFT 16
+
+/* CH_CTL_H */
+#define CH_CTL_H_ARLEN_EN BIT(6)
+#define CH_CTL_H_ARLEN_POS 7
+#define CH_CTL_H_AWLEN_EN BIT(15)
+#define CH_CTL_H_AWLEN_POS 16
+
+enum {
+ DWAXIDMAC_ARWLEN_1 = 0,
+ DWAXIDMAC_ARWLEN_2 = 1,
+ DWAXIDMAC_ARWLEN_4 = 3,
+ DWAXIDMAC_ARWLEN_8 = 7,
+ DWAXIDMAC_ARWLEN_16 = 15,
+ DWAXIDMAC_ARWLEN_32 = 31,
+ DWAXIDMAC_ARWLEN_64 = 63,
+ DWAXIDMAC_ARWLEN_128 = 127,
+ DWAXIDMAC_ARWLEN_256 = 255,
+ DWAXIDMAC_ARWLEN_MIN = DWAXIDMAC_ARWLEN_1,
+ DWAXIDMAC_ARWLEN_MAX = DWAXIDMAC_ARWLEN_256
+};
+
+#define CH_CTL_H_LLI_LAST BIT(30)
+#define CH_CTL_H_LLI_VALID BIT(31)
+
+/* CH_CTL_L */
+#define CH_CTL_L_LAST_WRITE_EN BIT(30)
+
+#define CH_CTL_L_DST_MSIZE_POS 18
+#define CH_CTL_L_SRC_MSIZE_POS 14
+
+enum {
+ DWAXIDMAC_BURST_TRANS_LEN_1 = 0,
+ DWAXIDMAC_BURST_TRANS_LEN_4,
+ DWAXIDMAC_BURST_TRANS_LEN_8,
+ DWAXIDMAC_BURST_TRANS_LEN_16,
+ DWAXIDMAC_BURST_TRANS_LEN_32,
+ DWAXIDMAC_BURST_TRANS_LEN_64,
+ DWAXIDMAC_BURST_TRANS_LEN_128,
+ DWAXIDMAC_BURST_TRANS_LEN_256,
+ DWAXIDMAC_BURST_TRANS_LEN_512,
+ DWAXIDMAC_BURST_TRANS_LEN_1024
+};
+
+#define CH_CTL_L_DST_WIDTH_POS 11
+#define CH_CTL_L_SRC_WIDTH_POS 8
+
+#define CH_CTL_L_DST_INC_POS 6
+#define CH_CTL_L_SRC_INC_POS 4
+enum {
+ DWAXIDMAC_CH_CTL_L_INC = 0,
+ DWAXIDMAC_CH_CTL_L_NOINC
+};
+
+#define CH_CTL_L_DST_MAST BIT(2)
+#define CH_CTL_L_SRC_MAST BIT(0)
+
+/* CH_CFG_H */
+#define CH_CFG_H_PRIORITY_POS 17
+#define CH_CFG_H_DST_PER_POS 12
+#define CH_CFG_H_SRC_PER_POS 7
+#define CH_CFG_H_HS_SEL_DST_POS 4
+#define CH_CFG_H_HS_SEL_SRC_POS 3
+enum {
+ DWAXIDMAC_HS_SEL_HW = 0,
+ DWAXIDMAC_HS_SEL_SW
+};
+
+#define CH_CFG_H_TT_FC_POS 0
+enum {
+ DWAXIDMAC_TT_FC_MEM_TO_MEM_DMAC = 0,
+ DWAXIDMAC_TT_FC_MEM_TO_PER_DMAC,
+ DWAXIDMAC_TT_FC_PER_TO_MEM_DMAC,
+ DWAXIDMAC_TT_FC_PER_TO_PER_DMAC,
+ DWAXIDMAC_TT_FC_PER_TO_MEM_SRC,
+ DWAXIDMAC_TT_FC_PER_TO_PER_SRC,
+ DWAXIDMAC_TT_FC_MEM_TO_PER_DST,
+ DWAXIDMAC_TT_FC_PER_TO_PER_DST
+};
+
+/* CH_CFG_L */
+#define CH_CFG_L_DST_MULTBLK_TYPE_POS 2
+#define CH_CFG_L_SRC_MULTBLK_TYPE_POS 0
+enum {
+ DWAXIDMAC_MBLK_TYPE_CONTIGUOUS = 0,
+ DWAXIDMAC_MBLK_TYPE_RELOAD,
+ DWAXIDMAC_MBLK_TYPE_SHADOW_REG,
+ DWAXIDMAC_MBLK_TYPE_LL
+};
+
+/* CH_CFG2 */
+#define CH_CFG2_L_SRC_PER_POS 4
+#define CH_CFG2_L_DST_PER_POS 11
+
+#define CH_CFG2_H_TT_FC_POS 0
+#define CH_CFG2_H_HS_SEL_SRC_POS 3
+#define CH_CFG2_H_HS_SEL_DST_POS 4
+#define CH_CFG2_H_PRIORITY_POS 20
+
+/**
+ * DW AXI DMA channel interrupts
+ *
+ * @DWAXIDMAC_IRQ_NONE: Bitmask of no one interrupt
+ * @DWAXIDMAC_IRQ_BLOCK_TRF: Block transfer complete
+ * @DWAXIDMAC_IRQ_DMA_TRF: Dma transfer complete
+ * @DWAXIDMAC_IRQ_SRC_TRAN: Source transaction complete
+ * @DWAXIDMAC_IRQ_DST_TRAN: Destination transaction complete
+ * @DWAXIDMAC_IRQ_SRC_DEC_ERR: Source decode error
+ * @DWAXIDMAC_IRQ_DST_DEC_ERR: Destination decode error
+ * @DWAXIDMAC_IRQ_SRC_SLV_ERR: Source slave error
+ * @DWAXIDMAC_IRQ_DST_SLV_ERR: Destination slave error
+ * @DWAXIDMAC_IRQ_LLI_RD_DEC_ERR: LLI read decode error
+ * @DWAXIDMAC_IRQ_LLI_WR_DEC_ERR: LLI write decode error
+ * @DWAXIDMAC_IRQ_LLI_RD_SLV_ERR: LLI read slave error
+ * @DWAXIDMAC_IRQ_LLI_WR_SLV_ERR: LLI write slave error
+ * @DWAXIDMAC_IRQ_INVALID_ERR: LLI invalid error or Shadow register error
+ * @DWAXIDMAC_IRQ_MULTIBLKTYPE_ERR: Slave Interface Multiblock type error
+ * @DWAXIDMAC_IRQ_DEC_ERR: Slave Interface decode error
+ * @DWAXIDMAC_IRQ_WR2RO_ERR: Slave Interface write to read only error
+ * @DWAXIDMAC_IRQ_RD2RWO_ERR: Slave Interface read to write only error
+ * @DWAXIDMAC_IRQ_WRONCHEN_ERR: Slave Interface write to channel error
+ * @DWAXIDMAC_IRQ_SHADOWREG_ERR: Slave Interface shadow reg error
+ * @DWAXIDMAC_IRQ_WRONHOLD_ERR: Slave Interface hold error
+ * @DWAXIDMAC_IRQ_LOCK_CLEARED: Lock Cleared Status
+ * @DWAXIDMAC_IRQ_SRC_SUSPENDED: Source Suspended Status
+ * @DWAXIDMAC_IRQ_SUSPENDED: Channel Suspended Status
+ * @DWAXIDMAC_IRQ_DISABLED: Channel Disabled Status
+ * @DWAXIDMAC_IRQ_ABORTED: Channel Aborted Status
+ * @DWAXIDMAC_IRQ_ALL_ERR: Bitmask of all error interrupts
+ * @DWAXIDMAC_IRQ_ALL: Bitmask of all interrupts
+ */
+enum {
+ DWAXIDMAC_IRQ_NONE = 0,
+ DWAXIDMAC_IRQ_BLOCK_TRF = BIT(0),
+ DWAXIDMAC_IRQ_DMA_TRF = BIT(1),
+ DWAXIDMAC_IRQ_SRC_TRAN = BIT(3),
+ DWAXIDMAC_IRQ_DST_TRAN = BIT(4),
+ DWAXIDMAC_IRQ_SRC_DEC_ERR = BIT(5),
+ DWAXIDMAC_IRQ_DST_DEC_ERR = BIT(6),
+ DWAXIDMAC_IRQ_SRC_SLV_ERR = BIT(7),
+ DWAXIDMAC_IRQ_DST_SLV_ERR = BIT(8),
+ DWAXIDMAC_IRQ_LLI_RD_DEC_ERR = BIT(9),
+ DWAXIDMAC_IRQ_LLI_WR_DEC_ERR = BIT(10),
+ DWAXIDMAC_IRQ_LLI_RD_SLV_ERR = BIT(11),
+ DWAXIDMAC_IRQ_LLI_WR_SLV_ERR = BIT(12),
+ DWAXIDMAC_IRQ_INVALID_ERR = BIT(13),
+ DWAXIDMAC_IRQ_MULTIBLKTYPE_ERR = BIT(14),
+ DWAXIDMAC_IRQ_DEC_ERR = BIT(16),
+ DWAXIDMAC_IRQ_WR2RO_ERR = BIT(17),
+ DWAXIDMAC_IRQ_RD2RWO_ERR = BIT(18),
+ DWAXIDMAC_IRQ_WRONCHEN_ERR = BIT(19),
+ DWAXIDMAC_IRQ_SHADOWREG_ERR = BIT(20),
+ DWAXIDMAC_IRQ_WRONHOLD_ERR = BIT(21),
+ DWAXIDMAC_IRQ_LOCK_CLEARED = BIT(27),
+ DWAXIDMAC_IRQ_SRC_SUSPENDED = BIT(28),
+ DWAXIDMAC_IRQ_SUSPENDED = BIT(29),
+ DWAXIDMAC_IRQ_DISABLED = BIT(30),
+ DWAXIDMAC_IRQ_ABORTED = BIT(31),
+ DWAXIDMAC_IRQ_ALL_ERR = (GENMASK(21, 16) | GENMASK(14, 5)),
+ DWAXIDMAC_IRQ_ALL = GENMASK(31, 0)
+};
+
+enum {
+ DWAXIDMAC_TRANS_WIDTH_8 = 0,
+ DWAXIDMAC_TRANS_WIDTH_16,
+ DWAXIDMAC_TRANS_WIDTH_32,
+ DWAXIDMAC_TRANS_WIDTH_64,
+ DWAXIDMAC_TRANS_WIDTH_128,
+ DWAXIDMAC_TRANS_WIDTH_256,
+ DWAXIDMAC_TRANS_WIDTH_512,
+ DWAXIDMAC_TRANS_WIDTH_MAX = DWAXIDMAC_TRANS_WIDTH_512
+};
+
+#endif /* _AXI_DMA_PLATFORM_H */