ISA 3.0 document hash table size in bytes = 2^(HTABSIZE + 18)
No functionality change by this patch.
Signed-off-by: Aneesh Kumar K.V <aneesh.ku...@linux.vnet.ibm.com>
---
arch/powerpc/mm/hash_utils_64.c | 9 ++++-----
1 file changed, 4 insertions(+), 5 deletions(-)
diff --git a/arch/powerpc/mm/hash_utils_64.c b/arch/powerpc/mm/hash_utils_64.c
index 59268969a0bc..3849de15b65f 100644
--- a/arch/powerpc/mm/hash_utils_64.c
+++ b/arch/powerpc/mm/hash_utils_64.c
@@ -677,10 +677,9 @@ int remove_section_mapping(unsigned long start, unsigned
long end)
#endif /* CONFIG_MEMORY_HOTPLUG */
static void __init hash_init_partition_table(phys_addr_t hash_table,
- unsigned long pteg_count)
+ unsigned long htab_size)
{
unsigned long ps_field;
- unsigned long htab_size;
unsigned long patb_size = 1UL << PATB_SIZE_SHIFT;
/*
@@ -688,7 +687,7 @@ static void __init hash_init_partition_table(phys_addr_t
hash_table,
* We can ignore that for lpid 0
*/
ps_field = 0;
- htab_size = __ilog2(pteg_count) - 11;
+ htab_size = __ilog2(htab_size) - 18;
BUILD_BUG_ON_MSG((PATB_SIZE_SHIFT > 24), "Partition table size too
large.");
partition_tb = __va(memblock_alloc_base(patb_size, patb_size,
@@ -774,7 +773,7 @@ static void __init htab_initialize(void)
htab_address = __va(table);
/* htab absolute addr + encoded htabsize */
- _SDR1 = table + __ilog2(pteg_count) - 11;
+ _SDR1 = table + __ilog2(htab_size_bytes) - 18;
/* Initialize the HPT with no entries */
memset((void *)table, 0, htab_size_bytes);
@@ -783,7 +782,7 @@ static void __init htab_initialize(void)
/* Set SDR1 */
mtspr(SPRN_SDR1, _SDR1);
else
- hash_init_partition_table(table, pteg_count);
+ hash_init_partition_table(table, htab_size_bytes);
}
prot = pgprot_val(PAGE_KERNEL);
--
2.7.4
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