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powerpc/lmb-size: Use addr #size-cells value when fetching lmb-size 

Make it consistent with other usages.

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20201007114836.282468-5-aneesh.kumar@linux.ibm.com
This commit is contained in:
Aneesh Kumar K.V 2020-10-07 17:18:36 +05:30 committed by Michael Ellerman
parent 950805f4d9
commit fbf2f134c8
2 changed files with 13 additions and 7 deletions
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7
arch/powerpc/mm/book3s64/radix_pgtable.c
View File

@ -498,7 +498,7 @@ static int __init probe_memory_block_size(unsigned long node, const char *uname,
depth, void *data)
{
unsigned long *mem_block_size = (unsigned long *)data;
const __be64 *prop;
const __be32 *prop;
int len;
if (depth != 1)
@ -508,13 +508,14 @@ static int __init probe_memory_block_size(unsigned long node, const char *uname,
return 0;
prop = of_get_flat_dt_prop(node, "ibm,lmb-size", &len);
if (!prop || len < sizeof(__be64))
if (!prop || len < dt_root_size_cells * sizeof(__be32))
/*
* Nothing in the device tree
*/
*mem_block_size = MIN_MEMORY_BLOCK_SIZE;
else
*mem_block_size = be64_to_cpup(prop);
*mem_block_size = of_read_number(prop, dt_root_size_cells);
return 1;
}

13
arch/powerpc/platforms/pseries/hotplug-memory.c
View File

@ -30,12 +30,17 @@ unsigned long pseries_memory_block_size(void)
np = of_find_node_by_path("/ibm,dynamic-reconfiguration-memory");
if (np) {
const __be64 *size;
int len;
int size_cells;
const __be32 *prop;
size = of_get_property(np, "ibm,lmb-size", NULL);
if (size)
memblock_size = be64_to_cpup(size);
size_cells = of_n_size_cells(np);
prop = of_get_property(np, "ibm,lmb-size", &len);
if (prop && len >= size_cells * sizeof(__be32))
memblock_size = of_read_number(prop, size_cells);
of_node_put(np);
} else if (machine_is(pseries)) {
/* This fallback really only applies to pseries */
unsigned int memzero_size = 0;