Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 72213834 authored by Jayachandran C's avatar Jayachandran C Committed by Ralf Baechle
Browse files

MIPS: Netlogic: Fixup memory regions for prefetch 



Fix a cache error found in stress test, caused by the prefetch instruction
going beyond valid memory when acessing the last page of a region. Add
the pref_backup logic similar to XLR in XLP too.

Signed-off-by: default avatarJayachandran C <jchandra@broadcom.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/5431/


Signed-off-by: default avatarRalf Baechle <ralf@linux-mips.org>
parent 4033d38c

arch/mips/netlogic/xlp/setup.c

+13 −0
Original line number Diff line number Diff line
@@ -61,6 +61,18 @@ static void nlm_linux_exit(void) 
		cpu_wait();

}



static void nlm_fixup_mem(void)

{

	const int pref_backup = 512;

	int i;



	for (i = 0; i < boot_mem_map.nr_map; i++) {

		if (boot_mem_map.map[i].type != BOOT_MEM_RAM)

			continue;

		boot_mem_map.map[i].size -= pref_backup;

	}

}



void __init plat_mem_setup(void)

{

	panic_timeout	= 5;
@@ -70,6 +82,7 @@ void __init plat_mem_setup(void) 


	/* memory and bootargs from DT */

	early_init_devtree(initial_boot_params);

	nlm_fixup_mem();

}



const char *get_system_type(void)