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MIPS: Loongson64: Set the field ELPA of CP0_PAGEGRAIN only once

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The field ELPA of CP0_PAGEGRAIN register is set at the beginning
of the kernel entry point in kernel-entry-init.h, no need to set
it again in numa.c, we can remove enable_lpa() and only print the
related information.

Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
This commit is contained in:
Tiezhu Yang 2020-11-03 15:12:01 +08:00 committed by Thomas Bogendoerfer
parent 4d1b3ac886
commit fe9863a19a
1 changed files with 2 additions and 15 deletions
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17
arch/mips/loongson64/numa.c
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@ -35,20 +35,6 @@ EXPORT_SYMBOL(__node_data);
cpumask_t __node_cpumask[MAX_NUMNODES]; cpumask_t __node_cpumask[MAX_NUMNODES];
EXPORT_SYMBOL(__node_cpumask); EXPORT_SYMBOL(__node_cpumask);
static void enable_lpa(void)
{
unsigned long value;
value = __read_32bit_c0_register($16, 3);
pr_info("CP0_Config3: CP0 16.3 (0x%lx)\n", value);
value = __read_32bit_c0_register($5, 1);
value |= 0x20000000;
__write_32bit_c0_register($5, 1, value);
value = __read_32bit_c0_register($5, 1);
pr_info("CP0_PageGrain: CP0 5.1 (0x%lx)\n", value);
}
static void cpu_node_probe(void) static void cpu_node_probe(void)
{ {
int i; int i;
@ -240,7 +226,8 @@ EXPORT_SYMBOL(pcibus_to_node);
void __init prom_init_numa_memory(void) void __init prom_init_numa_memory(void)
{ {
enable_lpa(); pr_info("CP0_Config3: CP0 16.3 (0x%x)\n", read_c0_config3());
pr_info("CP0_PageGrain: CP0 5.1 (0x%x)\n", read_c0_pagegrain());
prom_meminit(); prom_meminit();
} }
EXPORT_SYMBOL(prom_init_numa_memory); EXPORT_SYMBOL(prom_init_numa_memory);