1 // SPDX-License-Identifier: GPL-2.0+
48  * struct vpu - Ingenic VPU remoteproc private structure
50  * @clks: pointers to the VPU and AUX clocks
56 struct vpu {  struct
64 static int ingenic_rproc_prepare(struct rproc *rproc)  in ingenic_rproc_prepare()  argument
66 	struct vpu *vpu = rproc->priv;  in ingenic_rproc_prepare()  argument
70 	ret = clk_bulk_prepare_enable(ARRAY_SIZE(vpu->clks), vpu->clks);  in ingenic_rproc_prepare()
72 		dev_err(vpu->dev, "Unable to start clocks: %d\n", ret);  in ingenic_rproc_prepare()
77 static int ingenic_rproc_unprepare(struct rproc *rproc)  in ingenic_rproc_unprepare()  argument
79 	struct vpu *vpu = rproc->priv;  in ingenic_rproc_unprepare()  local
81 	clk_bulk_disable_unprepare(ARRAY_SIZE(vpu->clks), vpu->clks);  in ingenic_rproc_unprepare()
86 static int ingenic_rproc_start(struct rproc *rproc)  in ingenic_rproc_start()  argument
88 	struct vpu *vpu = rproc->priv;  in ingenic_rproc_start()  local
91 	enable_irq(vpu->irq);  in ingenic_rproc_start()
95 	writel(ctrl, vpu->aux_base + REG_AUX_CTRL);  in ingenic_rproc_start()
100 static int ingenic_rproc_stop(struct rproc *rproc)  in ingenic_rproc_stop()  argument
102 	struct vpu *vpu = rproc->priv;  in ingenic_rproc_stop()  local
104 	disable_irq(vpu->irq);  in ingenic_rproc_stop()
107 	writel(AUX_CTRL_SW_RESET, vpu->aux_base + REG_AUX_CTRL);  in ingenic_rproc_stop()
112 static void ingenic_rproc_kick(struct rproc *rproc, int vqid)  in ingenic_rproc_kick()  argument
114 	struct vpu *vpu = rproc->priv;  in ingenic_rproc_kick()  local
116 	writel(vqid, vpu->aux_base + REG_CORE_MSG);  in ingenic_rproc_kick()
119 static void *ingenic_rproc_da_to_va(struct rproc *rproc, u64 da, size_t len)  in ingenic_rproc_da_to_va()  argument
121 	struct vpu *vpu = rproc->priv;  in ingenic_rproc_da_to_va()  local
126 		const struct vpu_mem_info *info = &vpu->mem_info[i];  in ingenic_rproc_da_to_va()
127 		const struct vpu_mem_map *map = info->map;  in ingenic_rproc_da_to_va()
129 		if (da >= map->da && (da + len) < (map->da + info->len)) {  in ingenic_rproc_da_to_va()
130 			va = info->base + (da - map->da);  in ingenic_rproc_da_to_va()
149 	struct rproc *rproc = data;  in vpu_interrupt()  local
150 	struct vpu *vpu = rproc->priv;  in vpu_interrupt()  local
153 	vring = readl(vpu->aux_base + REG_AUX_MSG);  in vpu_interrupt()
156 	writel(0, vpu->aux_base + REG_AUX_MSG_ACK);  in vpu_interrupt()
158 	return rproc_vq_interrupt(rproc, vring);  in vpu_interrupt()
163 	struct device *dev = &pdev->dev;  in ingenic_rproc_probe()
165 	struct rproc *rproc;  in ingenic_rproc_probe()  local
166 	struct vpu *vpu;  in ingenic_rproc_probe()  local
170 	rproc = devm_rproc_alloc(dev, "ingenic-vpu",  in ingenic_rproc_probe()
171 				 &ingenic_rproc_ops, NULL, sizeof(*vpu));  in ingenic_rproc_probe()
172 	if (!rproc)  in ingenic_rproc_probe()
173 		return -ENOMEM;  in ingenic_rproc_probe()
175 	vpu = rproc->priv;  in ingenic_rproc_probe()
176 	vpu->dev = &pdev->dev;  in ingenic_rproc_probe()
177 	platform_set_drvdata(pdev, vpu);  in ingenic_rproc_probe()
180 	vpu->aux_base = devm_ioremap_resource(dev, mem);  in ingenic_rproc_probe()
181 	if (IS_ERR(vpu->aux_base)) {  in ingenic_rproc_probe()
183 		return PTR_ERR(vpu->aux_base);  in ingenic_rproc_probe()
190 		vpu->mem_info[i].base = devm_ioremap_resource(dev, mem);  in ingenic_rproc_probe()
191 		if (IS_ERR(vpu->mem_info[i].base)) {  in ingenic_rproc_probe()
192 			ret = PTR_ERR(vpu->mem_info[i].base);  in ingenic_rproc_probe()
197 		vpu->mem_info[i].len = resource_size(mem);  in ingenic_rproc_probe()
198 		vpu->mem_info[i].map = &vpu_mem_map[i];  in ingenic_rproc_probe()
201 	vpu->clks[0].id = "vpu";  in ingenic_rproc_probe()
202 	vpu->clks[1].id = "aux";  in ingenic_rproc_probe()
204 	ret = devm_clk_bulk_get(dev, ARRAY_SIZE(vpu->clks), vpu->clks);  in ingenic_rproc_probe()
210 	vpu->irq = platform_get_irq(pdev, 0);  in ingenic_rproc_probe()
211 	if (vpu->irq < 0)  in ingenic_rproc_probe()
212 		return vpu->irq;  in ingenic_rproc_probe()
214 	ret = devm_request_irq(dev, vpu->irq, vpu_interrupt, 0, "VPU", rproc);  in ingenic_rproc_probe()
220 	disable_irq(vpu->irq);  in ingenic_rproc_probe()
222 	ret = devm_rproc_add(dev, rproc);  in ingenic_rproc_probe()
232 	{ .compatible = "ingenic,jz4770-vpu-rproc", },
240 		.name = "ingenic-vpu",