Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2)  * Written by: Patricia Gaughen <gone@us.ibm.com>, IBM Corporation
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3)  * August 2002: added remote node KVA remap - Martin J. Bligh 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5)  * Copyright (C) 2002, IBM Corp.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7)  * All rights reserved.          
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9)  * This program is free software; you can redistribute it and/or modify
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10)  * it under the terms of the GNU General Public License as published by
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11)  * the Free Software Foundation; either version 2 of the License, or
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12)  * (at your option) any later version.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14)  * This program is distributed in the hope that it will be useful, but
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15)  * WITHOUT ANY WARRANTY; without even the implied warranty of
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16)  * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17)  * NON INFRINGEMENT.  See the GNU General Public License for more
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18)  * details.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20)  * You should have received a copy of the GNU General Public License
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21)  * along with this program; if not, write to the Free Software
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22)  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) #include <linux/memblock.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) #include <linux/init.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) #include "numa_internal.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) extern unsigned long highend_pfn, highstart_pfn;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) void __init initmem_init(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) 	x86_numa_init();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) #ifdef CONFIG_HIGHMEM
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) 	highstart_pfn = highend_pfn = max_pfn;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) 	if (max_pfn > max_low_pfn)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) 		highstart_pfn = max_low_pfn;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) 	printk(KERN_NOTICE "%ldMB HIGHMEM available.\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) 	       pages_to_mb(highend_pfn - highstart_pfn));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) 	high_memory = (void *) __va(highstart_pfn * PAGE_SIZE - 1) + 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) 	high_memory = (void *) __va(max_low_pfn * PAGE_SIZE - 1) + 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) 	printk(KERN_NOTICE "%ldMB LOWMEM available.\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) 			pages_to_mb(max_low_pfn));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) 	printk(KERN_DEBUG "max_low_pfn = %lx, highstart_pfn = %lx\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) 			max_low_pfn, highstart_pfn);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) 	printk(KERN_DEBUG "Low memory ends at vaddr %08lx\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) 			(ulong) pfn_to_kaddr(max_low_pfn));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) 	printk(KERN_DEBUG "High memory starts at vaddr %08lx\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) 			(ulong) pfn_to_kaddr(highstart_pfn));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) 	__vmalloc_start_set = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) 	setup_bootmem_allocator();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) }