52 struct ocmem {  struct
104 static inline void ocmem_write(struct ocmem *ocmem, u32 reg, u32 data)  in ocmem_write()  argument
106 	writel(data, ocmem->mmio + reg);  in ocmem_write()
109 static inline u32 ocmem_read(struct ocmem *ocmem, u32 reg)  in ocmem_read()  argument
111 	return readl(ocmem->mmio + reg);  in ocmem_read()
114 static void update_ocmem(struct ocmem *ocmem)  in update_ocmem()  argument
120 		for (i = 0; i < ocmem->config->num_regions; i++) {  in update_ocmem()
121 			struct ocmem_region *region = &ocmem->regions[i];  in update_ocmem()
127 		dev_dbg(ocmem->dev, "ocmem_region_mode_control %x\n",  in update_ocmem()
129 		ocmem_write(ocmem, OCMEM_REG_REGION_MODE_CTL, region_mode_ctrl);  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()
141 		ocmem_write(ocmem, OCMEM_REG_PSGSC_CTL(i), data);  in update_ocmem()
145 static unsigned long phys_to_offset(struct ocmem *ocmem,  in phys_to_offset()  argument
148 	if (addr < ocmem->memory->start || addr >= ocmem->memory->end)  in phys_to_offset()
151 	return addr - ocmem->memory->start;  in phys_to_offset()
154 static unsigned long device_address(struct ocmem *ocmem,  in device_address()  argument
161 	return phys_to_offset(ocmem, addr);  in device_address()
164 static void update_range(struct ocmem *ocmem, struct ocmem_buf *buf,  in update_range()  argument
170 	for (i = 0; i < ocmem->config->num_regions; i++) {  in update_range()
171 		struct ocmem_region *region = &ocmem->regions[i];  in update_range()
185 	update_ocmem(ocmem);  in update_range()
188 struct ocmem *of_get_ocmem(struct device *dev)  in of_get_ocmem()
192 	struct ocmem *ocmem;  in of_get_ocmem()  local
209 	ocmem = platform_get_drvdata(pdev);  in of_get_ocmem()
210 	if (!ocmem) {  in of_get_ocmem()
215 	return ocmem;  in of_get_ocmem()
219 struct ocmem_buf *ocmem_allocate(struct ocmem *ocmem, enum ocmem_client client,  in ocmem_allocate()  argument
232 	if (test_and_set_bit_lock(BIT(client), &ocmem->active_allocations))  in ocmem_allocate()
242 	buf->addr = device_address(ocmem, client, buf->offset);  in ocmem_allocate()
245 	update_range(ocmem, buf, CORE_ON, WIDE_MODE);  in ocmem_allocate()
251 			dev_err(ocmem->dev, "could not lock: %d\n", ret);  in ocmem_allocate()
256 		ocmem_write(ocmem, OCMEM_REG_GFX_MPU_START, buf->offset);  in ocmem_allocate()
257 		ocmem_write(ocmem, OCMEM_REG_GFX_MPU_END,  in ocmem_allocate()
261 	dev_dbg(ocmem->dev, "using %ldK of OCMEM at 0x%08lx for client %d\n",  in ocmem_allocate()
269 	clear_bit_unlock(BIT(client), &ocmem->active_allocations);  in ocmem_allocate()
275 void ocmem_free(struct ocmem *ocmem, enum ocmem_client client,  in ocmem_free()  argument
282 	update_range(ocmem, buf, CLK_OFF, MODE_DEFAULT);  in ocmem_free()
290 			dev_err(ocmem->dev, "could not unlock: %d\n", ret);  in ocmem_free()
292 		ocmem_write(ocmem, OCMEM_REG_GFX_MPU_START, 0x0);  in ocmem_free()
293 		ocmem_write(ocmem, OCMEM_REG_GFX_MPU_END, 0x0);  in ocmem_free()
298 	clear_bit_unlock(BIT(client), &ocmem->active_allocations);  in ocmem_free()
307 	struct ocmem *ocmem;  in ocmem_dev_probe()  local
312 	ocmem = devm_kzalloc(dev, sizeof(*ocmem), GFP_KERNEL);  in ocmem_dev_probe()
313 	if (!ocmem)  in ocmem_dev_probe()
316 	ocmem->dev = dev;  in ocmem_dev_probe()
317 	ocmem->config = device_get_match_data(dev);  in ocmem_dev_probe()
327 	ocmem->mmio = devm_platform_ioremap_resource_byname(pdev, "ctrl");  in ocmem_dev_probe()
328 	if (IS_ERR(ocmem->mmio)) {  in ocmem_dev_probe()
330 		return PTR_ERR(ocmem->mmio);  in ocmem_dev_probe()
333 	ocmem->memory = platform_get_resource_byname(pdev, IORESOURCE_MEM,  in ocmem_dev_probe()
335 	if (!ocmem->memory) {  in ocmem_dev_probe()
345 		dev_info(ocmem->dev, "Failed to enable clocks\n");  in ocmem_dev_probe()
358 	reg = ocmem_read(ocmem, OCMEM_REG_HW_PROFILE);  in ocmem_dev_probe()
359 	ocmem->num_ports = OCMEM_HW_PROFILE_NUM_PORTS(reg);  in ocmem_dev_probe()
360 	ocmem->num_macros = OCMEM_HW_PROFILE_NUM_MACROS(reg);  in ocmem_dev_probe()
361 	ocmem->interleaved = !!(reg & OCMEM_HW_PROFILE_INTERLEAVING);  in ocmem_dev_probe()
363 	num_banks = ocmem->num_ports / 2;  in ocmem_dev_probe()
364 	region_size = ocmem->config->macro_size * num_banks;  in ocmem_dev_probe()
367 		 ocmem->num_ports, ocmem->config->num_regions,  in ocmem_dev_probe()
368 		 ocmem->num_macros, ocmem->interleaved ? "" : "not ");  in ocmem_dev_probe()
370 	ocmem->regions = devm_kcalloc(dev, ocmem->config->num_regions,  in ocmem_dev_probe()
372 	if (!ocmem->regions) {  in ocmem_dev_probe()
377 	for (i = 0; i < ocmem->config->num_regions; i++) {  in ocmem_dev_probe()
378 		struct ocmem_region *region = &ocmem->regions[i];  in ocmem_dev_probe()
388 		if (i == (ocmem->config->num_regions - 1) &&  in ocmem_dev_probe()
390 			region->macro_size = ocmem->config->macro_size / 2;  in ocmem_dev_probe()
393 			region->macro_size = ocmem->config->macro_size;  in ocmem_dev_probe()
401 	platform_set_drvdata(pdev, ocmem);  in ocmem_dev_probe()