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 | #include <linux/of.h> |
7 | #include <linux/of_platform.h> |
8 | |
9 | int xudma_navss_psil_pair(struct udma_dev *ud, u32 src_thread, u32 dst_thread) |
10 | { |
11 | return navss_psil_pair(ud, src_thread, dst_thread); |
12 | } |
13 | EXPORT_SYMBOL(xudma_navss_psil_pair); |
14 | |
15 | int xudma_navss_psil_unpair(struct udma_dev *ud, u32 src_thread, u32 dst_thread) |
16 | { |
17 | return navss_psil_unpair(ud, src_thread, dst_thread); |
18 | } |
19 | EXPORT_SYMBOL(xudma_navss_psil_unpair); |
20 | |
21 | struct udma_dev *of_xudma_dev_get(struct device_node *np, const char *property) |
22 | { |
23 | struct device_node *udma_node = np; |
24 | struct platform_device *pdev; |
25 | struct udma_dev *ud; |
26 | |
27 | if (property) { |
28 | udma_node = of_parse_phandle(np, phandle_name: property, index: 0); |
29 | if (!udma_node) { |
30 | pr_err("UDMA node is not found\n" ); |
31 | return ERR_PTR(error: -ENODEV); |
32 | } |
33 | } |
34 | |
35 | pdev = of_find_device_by_node(np: udma_node); |
36 | if (np != udma_node) |
37 | of_node_put(node: udma_node); |
38 | |
39 | if (!pdev) { |
40 | pr_debug("UDMA device not found\n" ); |
41 | return ERR_PTR(error: -EPROBE_DEFER); |
42 | } |
43 | |
44 | ud = platform_get_drvdata(pdev); |
45 | if (!ud) { |
46 | pr_debug("UDMA has not been probed\n" ); |
47 | put_device(&pdev->dev); |
48 | return ERR_PTR(error: -EPROBE_DEFER); |
49 | } |
50 | |
51 | return ud; |
52 | } |
53 | EXPORT_SYMBOL(of_xudma_dev_get); |
54 | |
55 | struct device *xudma_get_device(struct udma_dev *ud) |
56 | { |
57 | return ud->dev; |
58 | } |
59 | EXPORT_SYMBOL(xudma_get_device); |
60 | |
61 | struct k3_ringacc *xudma_get_ringacc(struct udma_dev *ud) |
62 | { |
63 | return ud->ringacc; |
64 | } |
65 | EXPORT_SYMBOL(xudma_get_ringacc); |
66 | |
67 | u32 xudma_dev_get_psil_base(struct udma_dev *ud) |
68 | { |
69 | return ud->psil_base; |
70 | } |
71 | EXPORT_SYMBOL(xudma_dev_get_psil_base); |
72 | |
73 | struct udma_tisci_rm *xudma_dev_get_tisci_rm(struct udma_dev *ud) |
74 | { |
75 | return &ud->tisci_rm; |
76 | } |
77 | EXPORT_SYMBOL(xudma_dev_get_tisci_rm); |
78 | |
79 | int xudma_alloc_gp_rflow_range(struct udma_dev *ud, int from, int cnt) |
80 | { |
81 | return __udma_alloc_gp_rflow_range(ud, from, cnt); |
82 | } |
83 | EXPORT_SYMBOL(xudma_alloc_gp_rflow_range); |
84 | |
85 | int xudma_free_gp_rflow_range(struct udma_dev *ud, int from, int cnt) |
86 | { |
87 | return __udma_free_gp_rflow_range(ud, from, cnt); |
88 | } |
89 | EXPORT_SYMBOL(xudma_free_gp_rflow_range); |
90 | |
91 | bool xudma_rflow_is_gp(struct udma_dev *ud, int id) |
92 | { |
93 | if (!ud->rflow_gp_map) |
94 | return false; |
95 | |
96 | return !test_bit(id, ud->rflow_gp_map); |
97 | } |
98 | EXPORT_SYMBOL(xudma_rflow_is_gp); |
99 | |
100 | #define XUDMA_GET_PUT_RESOURCE(res) \ |
101 | struct udma_##res *xudma_##res##_get(struct udma_dev *ud, int id) \ |
102 | { \ |
103 | return __udma_reserve_##res(ud, UDMA_TP_NORMAL, id); \ |
104 | } \ |
105 | EXPORT_SYMBOL(xudma_##res##_get); \ |
106 | \ |
107 | void xudma_##res##_put(struct udma_dev *ud, struct udma_##res *p) \ |
108 | { \ |
109 | clear_bit(p->id, ud->res##_map); \ |
110 | } \ |
111 | EXPORT_SYMBOL(xudma_##res##_put) |
112 | XUDMA_GET_PUT_RESOURCE(tchan); |
113 | XUDMA_GET_PUT_RESOURCE(rchan); |
114 | |
115 | struct udma_rflow *xudma_rflow_get(struct udma_dev *ud, int id) |
116 | { |
117 | return __udma_get_rflow(ud, id); |
118 | } |
119 | EXPORT_SYMBOL(xudma_rflow_get); |
120 | |
121 | void xudma_rflow_put(struct udma_dev *ud, struct udma_rflow *p) |
122 | { |
123 | __udma_put_rflow(ud, p); |
124 | } |
125 | EXPORT_SYMBOL(xudma_rflow_put); |
126 | |
127 | int xudma_get_rflow_ring_offset(struct udma_dev *ud) |
128 | { |
129 | return ud->tflow_cnt; |
130 | } |
131 | EXPORT_SYMBOL(xudma_get_rflow_ring_offset); |
132 | |
133 | #define XUDMA_GET_RESOURCE_ID(res) \ |
134 | int xudma_##res##_get_id(struct udma_##res *p) \ |
135 | { \ |
136 | return p->id; \ |
137 | } \ |
138 | EXPORT_SYMBOL(xudma_##res##_get_id) |
139 | XUDMA_GET_RESOURCE_ID(tchan); |
140 | XUDMA_GET_RESOURCE_ID(rchan); |
141 | XUDMA_GET_RESOURCE_ID(rflow); |
142 | |
143 | /* Exported register access functions */ |
144 | #define XUDMA_RT_IO_FUNCTIONS(res) \ |
145 | u32 xudma_##res##rt_read(struct udma_##res *p, int reg) \ |
146 | { \ |
147 | if (!p) \ |
148 | return 0; \ |
149 | return udma_read(p->reg_rt, reg); \ |
150 | } \ |
151 | EXPORT_SYMBOL(xudma_##res##rt_read); \ |
152 | \ |
153 | void xudma_##res##rt_write(struct udma_##res *p, int reg, u32 val) \ |
154 | { \ |
155 | if (!p) \ |
156 | return; \ |
157 | udma_write(p->reg_rt, reg, val); \ |
158 | } \ |
159 | EXPORT_SYMBOL(xudma_##res##rt_write) |
160 | XUDMA_RT_IO_FUNCTIONS(tchan); |
161 | XUDMA_RT_IO_FUNCTIONS(rchan); |
162 | |
163 | int xudma_is_pktdma(struct udma_dev *ud) |
164 | { |
165 | return ud->match_data->type == DMA_TYPE_PKTDMA; |
166 | } |
167 | EXPORT_SYMBOL(xudma_is_pktdma); |
168 | |
169 | int xudma_pktdma_tflow_get_irq(struct udma_dev *ud, int udma_tflow_id) |
170 | { |
171 | const struct udma_oes_offsets *oes = &ud->soc_data->oes; |
172 | |
173 | return msi_get_virq(ud->dev, udma_tflow_id + oes->pktdma_tchan_flow); |
174 | } |
175 | EXPORT_SYMBOL(xudma_pktdma_tflow_get_irq); |
176 | |
177 | int xudma_pktdma_rflow_get_irq(struct udma_dev *ud, int udma_rflow_id) |
178 | { |
179 | const struct udma_oes_offsets *oes = &ud->soc_data->oes; |
180 | |
181 | return msi_get_virq(ud->dev, udma_rflow_id + oes->pktdma_rchan_flow); |
182 | } |
183 | EXPORT_SYMBOL(xudma_pktdma_rflow_get_irq); |
184 | |