Merge tag 'trace-v5.15-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt...
[linux-2.6-microblaze.git] / include / linux / dma / k3-psil.h
1 /* SPDX-License-Identifier: GPL-2.0 */
2 /*
3  *  Copyright (C) 2019 Texas Instruments Incorporated - https://www.ti.com
4  */
5
6 #ifndef K3_PSIL_H_
7 #define K3_PSIL_H_
8
9 #include <linux/types.h>
10
11 #define K3_PSIL_DST_THREAD_ID_OFFSET 0x8000
12
13 struct device;
14
15 /**
16  * enum udma_tp_level - Channel Throughput Levels
17  * @UDMA_TP_NORMAL:     Normal channel
18  * @UDMA_TP_HIGH:       High Throughput channel
19  * @UDMA_TP_ULTRAHIGH:  Ultra High Throughput channel
20  */
21 enum udma_tp_level {
22         UDMA_TP_NORMAL = 0,
23         UDMA_TP_HIGH,
24         UDMA_TP_ULTRAHIGH,
25         UDMA_TP_LAST,
26 };
27
28 /**
29  * enum psil_endpoint_type - PSI-L Endpoint type
30  * @PSIL_EP_NATIVE:     Normal channel
31  * @PSIL_EP_PDMA_XY:    XY mode PDMA
32  * @PSIL_EP_PDMA_MCAN:  MCAN mode PDMA
33  * @PSIL_EP_PDMA_AASRC: AASRC mode PDMA
34  */
35 enum psil_endpoint_type {
36         PSIL_EP_NATIVE = 0,
37         PSIL_EP_PDMA_XY,
38         PSIL_EP_PDMA_MCAN,
39         PSIL_EP_PDMA_AASRC,
40 };
41
42 /**
43  * struct psil_endpoint_config - PSI-L Endpoint configuration
44  * @ep_type:            PSI-L endpoint type
45  * @channel_tpl:        Desired throughput level for the channel
46  * @pkt_mode:           If set, the channel must be in Packet mode, otherwise in
47  *                      TR mode
48  * @notdpkt:            TDCM must be suppressed on the TX channel
49  * @needs_epib:         Endpoint needs EPIB
50  * @pdma_acc32:         ACC32 must be enabled on the PDMA side
51  * @pdma_burst:         BURST must be enabled on the PDMA side
52  * @psd_size:           If set, PSdata is used by the endpoint
53  * @mapped_channel_id:  PKTDMA thread to channel mapping for mapped channels.
54  *                      The thread must be serviced by the specified channel if
55  *                      mapped_channel_id is >= 0 in case of PKTDMA
56  * @flow_start:         PKDMA flow range start of mapped channel. Unmapped
57  *                      channels use flow_id == chan_id
58  * @flow_num:           PKDMA flow count of mapped channel. Unmapped channels
59  *                      use flow_id == chan_id
60  * @default_flow_id:    PKDMA default (r)flow index of mapped channel.
61  *                      Must be within the flow range of the mapped channel.
62  */
63 struct psil_endpoint_config {
64         enum psil_endpoint_type ep_type;
65         enum udma_tp_level channel_tpl;
66
67         unsigned pkt_mode:1;
68         unsigned notdpkt:1;
69         unsigned needs_epib:1;
70         /* PDMA properties, valid for PSIL_EP_PDMA_* */
71         unsigned pdma_acc32:1;
72         unsigned pdma_burst:1;
73
74         u32 psd_size;
75         /* PKDMA mapped channel */
76         s16 mapped_channel_id;
77         /* PKTDMA tflow and rflow ranges for mapped channel */
78         u16 flow_start;
79         u16 flow_num;
80         s16 default_flow_id;
81 };
82
83 int psil_set_new_ep_config(struct device *dev, const char *name,
84                            struct psil_endpoint_config *ep_config);
85
86 #endif /* K3_PSIL_H_ */