52 	void (*get_entry)(struct apple_sart *sart, int index, u8 *flags,
54 	void (*set_entry)(struct apple_sart *sart, int index, u8 flags,
71 static void sart2_get_entry(struct apple_sart *sart, int index, u8 *flags,  in sart2_get_entry()  argument
74 	u32 cfg = readl(sart->regs + APPLE_SART2_CONFIG(index));  in sart2_get_entry()
75 	phys_addr_t paddr_ = readl(sart->regs + APPLE_SART2_PADDR(index));  in sart2_get_entry()
83 static void sart2_set_entry(struct apple_sart *sart, int index, u8 flags,  in sart2_set_entry()  argument
91 	writel(paddr_shifted, sart->regs + APPLE_SART2_PADDR(index));  in sart2_set_entry()
92 	writel(cfg, sart->regs + APPLE_SART2_CONFIG(index));  in sart2_set_entry()
103 static void sart3_get_entry(struct apple_sart *sart, int index, u8 *flags,  in sart3_get_entry()  argument
106 	phys_addr_t paddr_ = readl(sart->regs + APPLE_SART3_PADDR(index));  in sart3_get_entry()
107 	size_t size_ = readl(sart->regs + APPLE_SART3_SIZE(index));  in sart3_get_entry()
109 	*flags = readl(sart->regs + APPLE_SART3_CONFIG(index));  in sart3_get_entry()
114 static void sart3_set_entry(struct apple_sart *sart, int index, u8 flags,  in sart3_set_entry()  argument
117 	writel(paddr_shifted, sart->regs + APPLE_SART3_PADDR(index));  in sart3_set_entry()
118 	writel(size_shifted, sart->regs + APPLE_SART3_SIZE(index));  in sart3_set_entry()
119 	writel(flags, sart->regs + APPLE_SART3_CONFIG(index));  in sart3_set_entry()
133 	struct apple_sart *sart;  in apple_sart_probe()  local
136 	sart = devm_kzalloc(dev, sizeof(*sart), GFP_KERNEL);  in apple_sart_probe()
137 	if (!sart)  in apple_sart_probe()
140 	sart->dev = dev;  in apple_sart_probe()
141 	sart->ops = of_device_get_match_data(dev);  in apple_sart_probe()
143 	sart->regs = devm_platform_ioremap_resource(pdev, 0);  in apple_sart_probe()
144 	if (IS_ERR(sart->regs))  in apple_sart_probe()
145 		return PTR_ERR(sart->regs);  in apple_sart_probe()
152 		sart->ops->get_entry(sart, i, &flags, &paddr, &size);  in apple_sart_probe()
157 		dev_dbg(sart->dev,  in apple_sart_probe()
160 		set_bit(i, &sart->protected_entries);  in apple_sart_probe()
163 	platform_set_drvdata(pdev, sart);  in apple_sart_probe()
176 	struct apple_sart *sart;  in devm_apple_sart_get()  local
189 	sart = dev_get_drvdata(&sart_pdev->dev);  in devm_apple_sart_get()
190 	if (!sart) {  in devm_apple_sart_get()
203 	return sart;  in devm_apple_sart_get()
207 static int sart_set_entry(struct apple_sart *sart, int index, u8 flags,  in sart_set_entry()  argument
210 	if (size & ((1 << sart->ops->size_shift) - 1))  in sart_set_entry()
212 	if (paddr & ((1 << sart->ops->paddr_shift) - 1))  in sart_set_entry()
215 	paddr >>= sart->ops->size_shift;  in sart_set_entry()
216 	size >>= sart->ops->paddr_shift;  in sart_set_entry()
218 	if (size > sart->ops->size_max)  in sart_set_entry()
221 	sart->ops->set_entry(sart, index, flags, paddr, size);  in sart_set_entry()
225 int apple_sart_add_allowed_region(struct apple_sart *sart, phys_addr_t paddr,  in apple_sart_add_allowed_region()  argument
231 		if (test_bit(i, &sart->protected_entries))  in apple_sart_add_allowed_region()
233 		if (test_and_set_bit(i, &sart->used_entries))  in apple_sart_add_allowed_region()
236 		ret = sart_set_entry(sart, i, APPLE_SART_FLAGS_ALLOW, paddr,  in apple_sart_add_allowed_region()
239 			dev_dbg(sart->dev,  in apple_sart_add_allowed_region()
242 			clear_bit(i, &sart->used_entries);  in apple_sart_add_allowed_region()
246 		dev_dbg(sart->dev, "wrote [%pa, 0x%zx] to %d\n", &paddr, size,  in apple_sart_add_allowed_region()
251 	dev_warn(sart->dev,  in apple_sart_add_allowed_region()
259 int apple_sart_remove_allowed_region(struct apple_sart *sart, phys_addr_t paddr,  in apple_sart_remove_allowed_region()  argument
264 	dev_dbg(sart->dev,  in apple_sart_remove_allowed_region()
273 		if (test_bit(i, &sart->protected_entries))  in apple_sart_remove_allowed_region()
276 		sart->ops->get_entry(sart, i, &eflags, &epaddr, &esize);  in apple_sart_remove_allowed_region()
281 		sart->ops->set_entry(sart, i, 0, 0, 0);  in apple_sart_remove_allowed_region()
283 		clear_bit(i, &sart->used_entries);  in apple_sart_remove_allowed_region()
284 		dev_dbg(sart->dev, "cleared entry %d\n", i);  in apple_sart_remove_allowed_region()
288 	dev_warn(sart->dev, "entry [paddr: 0x%pa, size: 0x%zx] not found\n",  in apple_sart_remove_allowed_region()
297 	struct apple_sart *sart = dev_get_drvdata(&pdev->dev);  in apple_sart_shutdown()  local
301 		if (test_bit(i, &sart->protected_entries))  in apple_sart_shutdown()
304 		sart->ops->set_entry(sart, i, 0, 0, 0);  in apple_sart_shutdown()