tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
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linux
1// SPDX-License-Identifier: GPL-2.0
2/*
3 * Copyright (C) 2019 Texas Instruments Incorporated - http://www.ti.com
4 * Author: Peter Ujfalusi <peter.ujfalusi@ti.com>
5 */
6
7int xudma_navss_psil_pair(struct udma_dev *ud, u32 src_thread, u32 dst_thread)
8{
9 return navss_psil_pair(ud, src_thread, dst_thread);
10}
11EXPORT_SYMBOL(xudma_navss_psil_pair);
12
13int xudma_navss_psil_unpair(struct udma_dev *ud, u32 src_thread, u32 dst_thread)
14{
15 return navss_psil_unpair(ud, src_thread, dst_thread);
16}
17EXPORT_SYMBOL(xudma_navss_psil_unpair);
18
19struct udma_dev *of_xudma_dev_get(struct device_node *np, const char *property)
20{
21 struct device_node *udma_node = np;
22 struct platform_device *pdev;
23 struct udma_dev *ud;
24
25 if (property) {
26 udma_node = of_parse_phandle(np, property, 0);
27 if (!udma_node) {
28 pr_err("UDMA node is not found\n");
29 return ERR_PTR(-ENODEV);
30 }
31 }
32
33 pdev = of_find_device_by_node(udma_node);
34 if (!pdev) {
35 pr_debug("UDMA device not found\n");
36 return ERR_PTR(-EPROBE_DEFER);
37 }
38
39 if (np != udma_node)
40 of_node_put(udma_node);
41
42 ud = platform_get_drvdata(pdev);
43 if (!ud) {
44 pr_debug("UDMA has not been probed\n");
45 put_device(&pdev->dev);
46 return ERR_PTR(-EPROBE_DEFER);
47 }
48
49 return ud;
50}
51EXPORT_SYMBOL(of_xudma_dev_get);
52
53u32 xudma_dev_get_psil_base(struct udma_dev *ud)
54{
55 return ud->psil_base;
56}
57EXPORT_SYMBOL(xudma_dev_get_psil_base);
58
59struct udma_tisci_rm *xudma_dev_get_tisci_rm(struct udma_dev *ud)
60{
61 return &ud->tisci_rm;
62}
63EXPORT_SYMBOL(xudma_dev_get_tisci_rm);
64
65int xudma_alloc_gp_rflow_range(struct udma_dev *ud, int from, int cnt)
66{
67 return __udma_alloc_gp_rflow_range(ud, from, cnt);
68}
69EXPORT_SYMBOL(xudma_alloc_gp_rflow_range);
70
71int xudma_free_gp_rflow_range(struct udma_dev *ud, int from, int cnt)
72{
73 return __udma_free_gp_rflow_range(ud, from, cnt);
74}
75EXPORT_SYMBOL(xudma_free_gp_rflow_range);
76
77bool xudma_rflow_is_gp(struct udma_dev *ud, int id)
78{
79 return !test_bit(id, ud->rflow_gp_map);
80}
81EXPORT_SYMBOL(xudma_rflow_is_gp);
82
83#define XUDMA_GET_PUT_RESOURCE(res) \
84struct udma_##res *xudma_##res##_get(struct udma_dev *ud, int id) \
85{ \
86 return __udma_reserve_##res(ud, false, id); \
87} \
88EXPORT_SYMBOL(xudma_##res##_get); \
89 \
90void xudma_##res##_put(struct udma_dev *ud, struct udma_##res *p) \
91{ \
92 clear_bit(p->id, ud->res##_map); \
93} \
94EXPORT_SYMBOL(xudma_##res##_put)
95XUDMA_GET_PUT_RESOURCE(tchan);
96XUDMA_GET_PUT_RESOURCE(rchan);
97
98struct udma_rflow *xudma_rflow_get(struct udma_dev *ud, int id)
99{
100 return __udma_get_rflow(ud, id);
101}
102EXPORT_SYMBOL(xudma_rflow_get);
103
104void xudma_rflow_put(struct udma_dev *ud, struct udma_rflow *p)
105{
106 __udma_put_rflow(ud, p);
107}
108EXPORT_SYMBOL(xudma_rflow_put);
109
110#define XUDMA_GET_RESOURCE_ID(res) \
111int xudma_##res##_get_id(struct udma_##res *p) \
112{ \
113 return p->id; \
114} \
115EXPORT_SYMBOL(xudma_##res##_get_id)
116XUDMA_GET_RESOURCE_ID(tchan);
117XUDMA_GET_RESOURCE_ID(rchan);
118XUDMA_GET_RESOURCE_ID(rflow);
119
120/* Exported register access functions */
121#define XUDMA_RT_IO_FUNCTIONS(res) \
122u32 xudma_##res##rt_read(struct udma_##res *p, int reg) \
123{ \
124 return udma_##res##rt_read(p, reg); \
125} \
126EXPORT_SYMBOL(xudma_##res##rt_read); \
127 \
128void xudma_##res##rt_write(struct udma_##res *p, int reg, u32 val) \
129{ \
130 udma_##res##rt_write(p, reg, val); \
131} \
132EXPORT_SYMBOL(xudma_##res##rt_write)
133XUDMA_RT_IO_FUNCTIONS(tchan);
134XUDMA_RT_IO_FUNCTIONS(rchan);