62 int hidma_mgmt_setup(struct hidma_mgmt_dev *mgmtdev)  in hidma_mgmt_setup()  argument
67 	if (!is_power_of_2(mgmtdev->max_write_request) ||  in hidma_mgmt_setup()
68 	    (mgmtdev->max_write_request < 128) ||  in hidma_mgmt_setup()
69 	    (mgmtdev->max_write_request > 1024)) {  in hidma_mgmt_setup()
70 		dev_err(&mgmtdev->pdev->dev, "invalid write request %d\n",  in hidma_mgmt_setup()
71 			mgmtdev->max_write_request);  in hidma_mgmt_setup()
75 	if (!is_power_of_2(mgmtdev->max_read_request) ||  in hidma_mgmt_setup()
76 	    (mgmtdev->max_read_request < 128) ||  in hidma_mgmt_setup()
77 	    (mgmtdev->max_read_request > 1024)) {  in hidma_mgmt_setup()
78 		dev_err(&mgmtdev->pdev->dev, "invalid read request %d\n",  in hidma_mgmt_setup()
79 			mgmtdev->max_read_request);  in hidma_mgmt_setup()
83 	if (mgmtdev->max_wr_xactions > HIDMA_MAX_WR_XACTIONS_MASK) {  in hidma_mgmt_setup()
84 		dev_err(&mgmtdev->pdev->dev,  in hidma_mgmt_setup()
90 	if (mgmtdev->max_rd_xactions > HIDMA_MAX_RD_XACTIONS_MASK) {  in hidma_mgmt_setup()
91 		dev_err(&mgmtdev->pdev->dev,  in hidma_mgmt_setup()
97 	for (i = 0; i < mgmtdev->dma_channels; i++) {  in hidma_mgmt_setup()
98 		if (mgmtdev->priority[i] > 1) {  in hidma_mgmt_setup()
99 			dev_err(&mgmtdev->pdev->dev,  in hidma_mgmt_setup()
104 		if (mgmtdev->weight[i] > HIDMA_MAX_CHANNEL_WEIGHT) {  in hidma_mgmt_setup()
105 			dev_err(&mgmtdev->pdev->dev,  in hidma_mgmt_setup()
112 		if (mgmtdev->weight[i] == 0)  in hidma_mgmt_setup()
113 			mgmtdev->weight[i] = 1;  in hidma_mgmt_setup()
116 	pm_runtime_get_sync(&mgmtdev->pdev->dev);  in hidma_mgmt_setup()
117 	val = readl(mgmtdev->virtaddr + HIDMA_MAX_BUS_REQ_LEN_OFFSET);  in hidma_mgmt_setup()
119 	val |= mgmtdev->max_write_request << HIDMA_MAX_BUS_WR_REQ_BIT_POS;  in hidma_mgmt_setup()
121 	val |= mgmtdev->max_read_request;  in hidma_mgmt_setup()
122 	writel(val, mgmtdev->virtaddr + HIDMA_MAX_BUS_REQ_LEN_OFFSET);  in hidma_mgmt_setup()
124 	val = readl(mgmtdev->virtaddr + HIDMA_MAX_XACTIONS_OFFSET);  in hidma_mgmt_setup()
126 	val |= mgmtdev->max_wr_xactions << HIDMA_MAX_WR_XACTIONS_BIT_POS;  in hidma_mgmt_setup()
128 	val |= mgmtdev->max_rd_xactions;  in hidma_mgmt_setup()
129 	writel(val, mgmtdev->virtaddr + HIDMA_MAX_XACTIONS_OFFSET);  in hidma_mgmt_setup()
131 	mgmtdev->hw_version =  in hidma_mgmt_setup()
132 	    readl(mgmtdev->virtaddr + HIDMA_HW_VERSION_OFFSET);  in hidma_mgmt_setup()
133 	mgmtdev->hw_version_major = (mgmtdev->hw_version >> 28) & 0xF;  in hidma_mgmt_setup()
134 	mgmtdev->hw_version_minor = (mgmtdev->hw_version >> 16) & 0xF;  in hidma_mgmt_setup()
136 	for (i = 0; i < mgmtdev->dma_channels; i++) {  in hidma_mgmt_setup()
137 		u32 weight = mgmtdev->weight[i];  in hidma_mgmt_setup()
138 		u32 priority = mgmtdev->priority[i];  in hidma_mgmt_setup()
140 		val = readl(mgmtdev->virtaddr + HIDMA_QOS_N_OFFSET + (4 * i));  in hidma_mgmt_setup()
145 		writel(val, mgmtdev->virtaddr + HIDMA_QOS_N_OFFSET + (4 * i));  in hidma_mgmt_setup()
148 	val = readl(mgmtdev->virtaddr + HIDMA_CHRESET_TIMEOUT_OFFSET);  in hidma_mgmt_setup()
150 	val |= mgmtdev->chreset_timeout_cycles & HIDMA_CHRESET_TIMEOUT_MASK;  in hidma_mgmt_setup()
151 	writel(val, mgmtdev->virtaddr + HIDMA_CHRESET_TIMEOUT_OFFSET);  in hidma_mgmt_setup()
153 	pm_runtime_mark_last_busy(&mgmtdev->pdev->dev);  in hidma_mgmt_setup()
154 	pm_runtime_put_autosuspend(&mgmtdev->pdev->dev);  in hidma_mgmt_setup()
161 	struct hidma_mgmt_dev *mgmtdev;  in hidma_mgmt_probe()  local
186 	mgmtdev = devm_kzalloc(&pdev->dev, sizeof(*mgmtdev), GFP_KERNEL);  in hidma_mgmt_probe()
187 	if (!mgmtdev) {  in hidma_mgmt_probe()
192 	mgmtdev->pdev = pdev;  in hidma_mgmt_probe()
193 	mgmtdev->addrsize = resource_size(res);  in hidma_mgmt_probe()
194 	mgmtdev->virtaddr = virtaddr;  in hidma_mgmt_probe()
197 				      &mgmtdev->dma_channels);  in hidma_mgmt_probe()
205 				      &mgmtdev->chreset_timeout_cycles);  in hidma_mgmt_probe()
212 				      &mgmtdev->max_write_request);  in hidma_mgmt_probe()
219 			(max_write_request != mgmtdev->max_write_request)) {  in hidma_mgmt_probe()
222 		mgmtdev->max_write_request = max_write_request;  in hidma_mgmt_probe()
224 		max_write_request = mgmtdev->max_write_request;  in hidma_mgmt_probe()
227 				      &mgmtdev->max_read_request);  in hidma_mgmt_probe()
233 			(max_read_request != mgmtdev->max_read_request)) {  in hidma_mgmt_probe()
236 		mgmtdev->max_read_request = max_read_request;  in hidma_mgmt_probe()
238 		max_read_request = mgmtdev->max_read_request;  in hidma_mgmt_probe()
241 				      &mgmtdev->max_wr_xactions);  in hidma_mgmt_probe()
247 			(max_wr_xactions != mgmtdev->max_wr_xactions)) {  in hidma_mgmt_probe()
250 		mgmtdev->max_wr_xactions = max_wr_xactions;  in hidma_mgmt_probe()
252 		max_wr_xactions = mgmtdev->max_wr_xactions;  in hidma_mgmt_probe()
255 				      &mgmtdev->max_rd_xactions);  in hidma_mgmt_probe()
261 			(max_rd_xactions != mgmtdev->max_rd_xactions)) {  in hidma_mgmt_probe()
264 		mgmtdev->max_rd_xactions = max_rd_xactions;  in hidma_mgmt_probe()
266 		max_rd_xactions = mgmtdev->max_rd_xactions;  in hidma_mgmt_probe()
268 	mgmtdev->priority = devm_kcalloc(&pdev->dev,  in hidma_mgmt_probe()
269 					 mgmtdev->dma_channels,  in hidma_mgmt_probe()
270 					 sizeof(*mgmtdev->priority),  in hidma_mgmt_probe()
272 	if (!mgmtdev->priority) {  in hidma_mgmt_probe()
277 	mgmtdev->weight = devm_kcalloc(&pdev->dev,  in hidma_mgmt_probe()
278 				       mgmtdev->dma_channels,  in hidma_mgmt_probe()
279 				       sizeof(*mgmtdev->weight), GFP_KERNEL);  in hidma_mgmt_probe()
280 	if (!mgmtdev->weight) {  in hidma_mgmt_probe()
285 	rc = hidma_mgmt_setup(mgmtdev);  in hidma_mgmt_probe()
292 	val = readl(mgmtdev->virtaddr + HIDMA_CFG_OFFSET);  in hidma_mgmt_probe()
294 	writel(val, mgmtdev->virtaddr + HIDMA_CFG_OFFSET);  in hidma_mgmt_probe()
296 	rc = hidma_mgmt_init_sys(mgmtdev);  in hidma_mgmt_probe()
304 		 mgmtdev->hw_version_major, mgmtdev->hw_version_minor,  in hidma_mgmt_probe()
305 		 &res->start, mgmtdev->dma_channels);  in hidma_mgmt_probe()
307 	platform_set_drvdata(pdev, mgmtdev);  in hidma_mgmt_probe()