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