static int pseries_update_drconf_memory(struct of_prop_reconfig *pr)
{
struct of_drconf_cell *new_drmem, *old_drmem;
unsigned long memblock_size;
u32 entries;
u32 *p;
int i, rc = -EINVAL;
memblock_size = get_memblock_size();
if (!memblock_size)
return -EINVAL;
p = (u32 *)of_get_property(pr->dn, "ibm,dynamic-memory", NULL);
if (!p)
return -EINVAL;
/* The first int of the property is the number of lmb's described
* by the property. This is followed by an array of of_drconf_cell
* entries. Get the niumber of entries and skip to the array of
* of_drconf_cell's.
*/
entries = *p++;
old_drmem = (struct of_drconf_cell *)p;
p = (u32 *)pr->prop->value;
p++;
new_drmem = (struct of_drconf_cell *)p;
for (i = 0; i < entries; i++) {
if ((old_drmem[i].flags & DRCONF_MEM_ASSIGNED) &&
(!(new_drmem[i].flags & DRCONF_MEM_ASSIGNED))) {
rc = pseries_remove_memblock(old_drmem[i].base_addr,
memblock_size);
break;
} else if ((!(old_drmem[i].flags & DRCONF_MEM_ASSIGNED)) &&
(new_drmem[i].flags & DRCONF_MEM_ASSIGNED)) {
rc = memblock_add(old_drmem[i].base_addr,
memblock_size);
rc = (rc < 0) ? -EINVAL : 0;
break;
}
}
return rc;
}
static int pseries_drconf_memory(unsigned long *base, unsigned int action)
{
unsigned long memblock_size;
int rc;
memblock_size = get_memblock_size();
if (!memblock_size)
return -EINVAL;
if (action == PSERIES_DRCONF_MEM_ADD) {
rc = memblock_add(*base, memblock_size);
rc = (rc < 0) ? -EINVAL : 0;
} else if (action == PSERIES_DRCONF_MEM_REMOVE) {
rc = pseries_remove_memblock(*base, memblock_size);
} else {
rc = -EINVAL;
}
return rc;
}
unsigned long memory_block_size_bytes(void)
{
return get_memblock_size();
}
