1 // SPDX-License-Identifier: GPL-2.0-only
21 	struct parking_protocol_mailbox __iomem *mailbox;  member
34 	cpu_entry->mailbox_addr = p->parked_address;  in acpi_set_mailbox_entry()
35 	cpu_entry->version = p->parking_version;  in acpi_set_mailbox_entry()
36 	cpu_entry->gic_cpu_id = p->cpu_interface_number;  in acpi_set_mailbox_entry()
43 	return cpu_entry->mailbox_addr && cpu_entry->version;  in acpi_parking_protocol_valid()
62 	struct parking_protocol_mailbox __iomem *mailbox;  in acpi_parking_protocol_cpu_boot()  local
66 	 * Map mailbox memory with attribute device nGnRE (ie ioremap -  in acpi_parking_protocol_cpu_boot()
71 	 * If the mailbox is mistakenly allocated in the linear mapping  in acpi_parking_protocol_cpu_boot()
76 	mailbox = ioremap(cpu_entry->mailbox_addr, sizeof(*mailbox));  in acpi_parking_protocol_cpu_boot()
77 	if (!mailbox)  in acpi_parking_protocol_cpu_boot()
78 		return -EIO;  in acpi_parking_protocol_cpu_boot()
80 	cpu_id = readl_relaxed(&mailbox->cpu_id);  in acpi_parking_protocol_cpu_boot()
82 	 * Check if firmware has set-up the mailbox entry properly  in acpi_parking_protocol_cpu_boot()
86 		iounmap(mailbox);  in acpi_parking_protocol_cpu_boot()
87 		return -ENXIO;  in acpi_parking_protocol_cpu_boot()
91 	 * stash the mailbox address mapping to use it for further FW  in acpi_parking_protocol_cpu_boot()
94 	cpu_entry->mailbox = mailbox;  in acpi_parking_protocol_cpu_boot()
98 	 * native endianness of the kernel. Therefore, any boot-loaders  in acpi_parking_protocol_cpu_boot()
100 	 * Boot-Loader's endianness before jumping.  in acpi_parking_protocol_cpu_boot()
103 		       &mailbox->entry_point);  in acpi_parking_protocol_cpu_boot()
104 	writel_relaxed(cpu_entry->gic_cpu_id, &mailbox->cpu_id);  in acpi_parking_protocol_cpu_boot()
115 	struct parking_protocol_mailbox __iomem *mailbox = cpu_entry->mailbox;  in acpi_parking_protocol_cpu_postboot()  local
118 	entry_point = readq_relaxed(&mailbox->entry_point);  in acpi_parking_protocol_cpu_postboot()
127 	.name		= "parking-protocol",