1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause
10  * 1. Redistributions of source code must retain the above copyright
61  * It is allocated in page-multiple blocks on a first-come first-serve basis,
64 static char *romptr;	/* Pointer to userspace-mapped bootrom region. */
65 static vm_paddr_t gpa_base;	/* GPA of low end of region. */
66 static vm_paddr_t gpa_allocbot;	/* Low GPA of free region. */
67 static vm_paddr_t gpa_alloctop;	/* High GPA, minus 1, of free region. */
76 	uint64_t	gpa;  member
91 	offset = addr - var.gpa;  in bootrom_var_mem_handler()
128 	gpa_base = highmem - BOOTROM_SIZE;  in init_bootrom()
130 	gpa_alloctop = highmem - 1;  in init_bootrom()
139 	vm_paddr_t gpa;  in bootrom_alloc()  local
164 		gpa = (gpa_alloctop - len) + 1;  in bootrom_alloc()
165 		if (gpa < gpa_allocbot) {  in bootrom_alloc()
170 		gpa = gpa_allocbot;  in bootrom_alloc()
171 		if (gpa > (gpa_alloctop - len) + 1) {  in bootrom_alloc()
177 	segoff = gpa - gpa_base;  in bootrom_alloc()
178 	if (vm_mmap_memseg(ctx, gpa, VM_BOOTROM, segoff, len, prot) != 0) {  in bootrom_alloc()
185 		gpa_alloctop = gpa - 1;  in bootrom_alloc()
187 		gpa_allocbot = gpa + len;  in bootrom_alloc()
191 		*gpa_out = gpa;  in bootrom_alloc()
205 	rv = -1;  in bootrom_loadrom()
206 	varfd = -1;  in bootrom_loadrom()
221 		return (-1);  in bootrom_loadrom()
296 		var.gpa = (gpa_alloctop - var_size) + 1;  in bootrom_loadrom()
297 		gpa_alloctop = var.gpa - 1;  in bootrom_loadrom()
302 		    .base = var.gpa,  in bootrom_loadrom()