1 // SPDX-License-Identifier: GPL-2.0-only
60 	struct ocmem_region *regions;  member
106 	writel(data, ocmem->mmio + reg);  in ocmem_write()
111 	return readl(ocmem->mmio + reg);  in ocmem_read()
120 		for (i = 0; i < ocmem->config->num_regions; i++) {  in update_ocmem()
121 			struct ocmem_region *region = &ocmem->regions[i];  in update_ocmem()
123 			if (region->mode == THIN_MODE)  in update_ocmem()
127 		dev_dbg(ocmem->dev, "ocmem_region_mode_control %x\n",  in update_ocmem()
132 	for (i = 0; i < ocmem->config->num_regions; i++) {  in update_ocmem()
133 		struct ocmem_region *region = &ocmem->regions[i];  in update_ocmem()
136 		data = OCMEM_PSGSC_CTL_MACRO0_MODE(region->macro_state[0]) |  in update_ocmem()
137 			OCMEM_PSGSC_CTL_MACRO1_MODE(region->macro_state[1]) |  in update_ocmem()
138 			OCMEM_PSGSC_CTL_MACRO2_MODE(region->macro_state[2]) |  in update_ocmem()
139 			OCMEM_PSGSC_CTL_MACRO3_MODE(region->macro_state[3]);  in update_ocmem()
148 	if (addr < ocmem->memory->start || addr >= ocmem->memory->end)  in phys_to_offset()
151 	return addr - ocmem->memory->start;  in phys_to_offset()
170 	for (i = 0; i < ocmem->config->num_regions; i++) {  in update_range()
171 		struct ocmem_region *region = &ocmem->regions[i];  in update_range()
173 		if (buf->offset <= offset && offset < buf->offset + buf->len)  in update_range()
174 			region->mode = rmode;  in update_range()
176 		for (j = 0; j < region->num_macros; j++) {  in update_range()
177 			if (buf->offset <= offset &&  in update_range()
178 			    offset < buf->offset + buf->len)  in update_range()
179 				region->macro_state[j] = mstate;  in update_range()
181 			offset += region->macro_size;  in update_range()
194 	devnode = of_parse_phandle(dev->of_node, "sram", 0);  in of_get_ocmem()
195 	if (!devnode || !devnode->parent) {  in of_get_ocmem()
197 		return ERR_PTR(-ENODEV);  in of_get_ocmem()
200 	pdev = of_find_device_by_node(devnode->parent);  in of_get_ocmem()
202 		dev_err(dev, "Cannot find device node %s\n", devnode->name);  in of_get_ocmem()
203 		return ERR_PTR(-EPROBE_DEFER);  in of_get_ocmem()
209 		return ERR_PTR(-ENODEV);  in of_get_ocmem()
223 		return ERR_PTR(-ENODEV);  in ocmem_allocate()
226 		return ERR_PTR(-EINVAL);  in ocmem_allocate()
228 	if (test_and_set_bit_lock(BIT(client), &ocmem->active_allocations))  in ocmem_allocate()
229 		return ERR_PTR(-EBUSY);  in ocmem_allocate()
233 		ret = -ENOMEM;  in ocmem_allocate()
237 	buf->offset = 0;  in ocmem_allocate()
238 	buf->addr = device_address(ocmem, client, buf->offset);  in ocmem_allocate()
239 	buf->len = size;  in ocmem_allocate()
245 					  buf->offset, buf->len, WIDE_MODE);  in ocmem_allocate()
247 			dev_err(ocmem->dev, "could not lock: %d\n", ret);  in ocmem_allocate()
248 			ret = -EINVAL;  in ocmem_allocate()
252 		ocmem_write(ocmem, OCMEM_REG_GFX_MPU_START, buf->offset);  in ocmem_allocate()
254 			    buf->offset + buf->len);  in ocmem_allocate()
257 	dev_dbg(ocmem->dev, "using %ldK of OCMEM at 0x%08lx for client %d\n",  in ocmem_allocate()
258 		size / 1024, buf->addr, client);  in ocmem_allocate()
265 	clear_bit_unlock(BIT(client), &ocmem->active_allocations);  in ocmem_allocate()
284 					    buf->offset, buf->len);  in ocmem_free()
286 			dev_err(ocmem->dev, "could not unlock: %d\n", ret);  in ocmem_free()
294 	clear_bit_unlock(BIT(client), &ocmem->active_allocations);  in ocmem_free()
300 	struct device *dev = &pdev->dev;  in ocmem_dev_probe()
307 		return -EPROBE_DEFER;  in ocmem_dev_probe()
311 		return -ENOMEM;  in ocmem_dev_probe()
313 	ocmem->dev = dev;  in ocmem_dev_probe()
314 	ocmem->config = device_get_match_data(dev);  in ocmem_dev_probe()
318 		if (ret != -EPROBE_DEFER)  in ocmem_dev_probe()
325 	ocmem->mmio = devm_ioremap_resource(&pdev->dev, res);  in ocmem_dev_probe()
326 	if (IS_ERR(ocmem->mmio)) {  in ocmem_dev_probe()
327 		dev_err(&pdev->dev, "Failed to ioremap ocmem_ctrl resource\n");  in ocmem_dev_probe()
328 		return PTR_ERR(ocmem->mmio);  in ocmem_dev_probe()
331 	ocmem->memory = platform_get_resource_byname(pdev, IORESOURCE_MEM,  in ocmem_dev_probe()
333 	if (!ocmem->memory) {  in ocmem_dev_probe()
335 		return -ENXIO;  in ocmem_dev_probe()
343 		dev_info(ocmem->dev, "Failed to enable clocks\n");  in ocmem_dev_probe()
351 			dev_err(dev, "Could not enable secure configuration\n");  in ocmem_dev_probe()
357 	ocmem->num_ports = OCMEM_HW_PROFILE_NUM_PORTS(reg);  in ocmem_dev_probe()
358 	ocmem->num_macros = OCMEM_HW_PROFILE_NUM_MACROS(reg);  in ocmem_dev_probe()
359 	ocmem->interleaved = !!(reg & OCMEM_HW_PROFILE_INTERLEAVING);  in ocmem_dev_probe()
361 	num_banks = ocmem->num_ports / 2;  in ocmem_dev_probe()
362 	region_size = ocmem->config->macro_size * num_banks;  in ocmem_dev_probe()
364 	dev_info(dev, "%u ports, %u regions, %u macros, %sinterleaved\n",  in ocmem_dev_probe()
365 		 ocmem->num_ports, ocmem->config->num_regions,  in ocmem_dev_probe()
366 		 ocmem->num_macros, ocmem->interleaved ? "" : "not ");  in ocmem_dev_probe()
368 	ocmem->regions = devm_kcalloc(dev, ocmem->config->num_regions,  in ocmem_dev_probe()
370 	if (!ocmem->regions) {  in ocmem_dev_probe()
371 		ret = -ENOMEM;  in ocmem_dev_probe()
375 	for (i = 0; i < ocmem->config->num_regions; i++) {  in ocmem_dev_probe()
376 		struct ocmem_region *region = &ocmem->regions[i];  in ocmem_dev_probe()
378 		if (WARN_ON(num_banks > ARRAY_SIZE(region->macro_state))) {  in ocmem_dev_probe()
379 			ret = -EINVAL;  in ocmem_dev_probe()
383 		region->mode = MODE_DEFAULT;  in ocmem_dev_probe()
384 		region->num_macros = num_banks;  in ocmem_dev_probe()
386 		if (i == (ocmem->config->num_regions - 1) &&  in ocmem_dev_probe()
388 			region->macro_size = ocmem->config->macro_size / 2;  in ocmem_dev_probe()
389 			region->region_size = region_size / 2;  in ocmem_dev_probe()
391 			region->macro_size = ocmem->config->macro_size;  in ocmem_dev_probe()
392 			region->region_size = region_size;  in ocmem_dev_probe()
395 		for (j = 0; j < ARRAY_SIZE(region->macro_state); j++)  in ocmem_dev_probe()
396 			region->macro_state[j] = CLK_OFF;  in ocmem_dev_probe()
421 	{ .compatible = "qcom,msm8974-ocmem", .data = &ocmem_8974_config },