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1// SPDX-License-Identifier: GPL-2.02/*3 * Copyright (C) 2019 Texas Instruments Incorporated - http://www.ti.com4 * Author: Peter Ujfalusi <peter.ujfalusi@ti.com>5 */6#include <linux/of.h>7#include <linux/of_platform.h>8 9int 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}13EXPORT_SYMBOL(xudma_navss_psil_pair);14 15int 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}19EXPORT_SYMBOL(xudma_navss_psil_unpair);20 21struct 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, property, 0);29 if (!udma_node) {30 pr_err("UDMA node is not found\n");31 return ERR_PTR(-ENODEV);32 }33 }34 35 pdev = of_find_device_by_node(udma_node);36 if (np != udma_node)37 of_node_put(udma_node);38 39 if (!pdev) {40 pr_debug("UDMA device not found\n");41 return ERR_PTR(-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(-EPROBE_DEFER);49 }50 51 return ud;52}53EXPORT_SYMBOL(of_xudma_dev_get);54 55struct device *xudma_get_device(struct udma_dev *ud)56{57 return ud->dev;58}59EXPORT_SYMBOL(xudma_get_device);60 61struct k3_ringacc *xudma_get_ringacc(struct udma_dev *ud)62{63 return ud->ringacc;64}65EXPORT_SYMBOL(xudma_get_ringacc);66 67u32 xudma_dev_get_psil_base(struct udma_dev *ud)68{69 return ud->psil_base;70}71EXPORT_SYMBOL(xudma_dev_get_psil_base);72 73struct udma_tisci_rm *xudma_dev_get_tisci_rm(struct udma_dev *ud)74{75 return &ud->tisci_rm;76}77EXPORT_SYMBOL(xudma_dev_get_tisci_rm);78 79int 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}83EXPORT_SYMBOL(xudma_alloc_gp_rflow_range);84 85int 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}89EXPORT_SYMBOL(xudma_free_gp_rflow_range);90 91bool 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}98EXPORT_SYMBOL(xudma_rflow_is_gp);99 100#define XUDMA_GET_PUT_RESOURCE(res) \101struct udma_##res *xudma_##res##_get(struct udma_dev *ud, int id) \102{ \103 return __udma_reserve_##res(ud, UDMA_TP_NORMAL, id); \104} \105EXPORT_SYMBOL(xudma_##res##_get); \106 \107void xudma_##res##_put(struct udma_dev *ud, struct udma_##res *p) \108{ \109 clear_bit(p->id, ud->res##_map); \110} \111EXPORT_SYMBOL(xudma_##res##_put)112XUDMA_GET_PUT_RESOURCE(tchan);113XUDMA_GET_PUT_RESOURCE(rchan);114 115struct udma_rflow *xudma_rflow_get(struct udma_dev *ud, int id)116{117 return __udma_get_rflow(ud, id);118}119EXPORT_SYMBOL(xudma_rflow_get);120 121void xudma_rflow_put(struct udma_dev *ud, struct udma_rflow *p)122{123 __udma_put_rflow(ud, p);124}125EXPORT_SYMBOL(xudma_rflow_put);126 127int xudma_get_rflow_ring_offset(struct udma_dev *ud)128{129 return ud->tflow_cnt;130}131EXPORT_SYMBOL(xudma_get_rflow_ring_offset);132 133#define XUDMA_GET_RESOURCE_ID(res) \134int xudma_##res##_get_id(struct udma_##res *p) \135{ \136 return p->id; \137} \138EXPORT_SYMBOL(xudma_##res##_get_id)139XUDMA_GET_RESOURCE_ID(tchan);140XUDMA_GET_RESOURCE_ID(rchan);141XUDMA_GET_RESOURCE_ID(rflow);142 143/* Exported register access functions */144#define XUDMA_RT_IO_FUNCTIONS(res) \145u32 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} \151EXPORT_SYMBOL(xudma_##res##rt_read); \152 \153void 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} \159EXPORT_SYMBOL(xudma_##res##rt_write)160XUDMA_RT_IO_FUNCTIONS(tchan);161XUDMA_RT_IO_FUNCTIONS(rchan);162 163int xudma_is_pktdma(struct udma_dev *ud)164{165 return ud->match_data->type == DMA_TYPE_PKTDMA;166}167EXPORT_SYMBOL(xudma_is_pktdma);168 169int 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}175EXPORT_SYMBOL(xudma_pktdma_tflow_get_irq);176 177int 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}183EXPORT_SYMBOL(xudma_pktdma_rflow_get_irq);184