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: Jayachandran C <jchandra@xxxxxxxxxxxx>
---
arch/mips/netlogic/xlp/setup.c | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff --git a/arch/mips/netlogic/xlp/setup.c b/arch/mips/netlogic/xlp/setup.c
index 8f69924..50e9855 100644
--- a/arch/mips/netlogic/xlp/setup.c
+++ b/arch/mips/netlogic/xlp/setup.c
@@ -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)
--
1.7.9.5
