void
ps3_mem_regions(platform_t plat, struct mem_region *phys, int *physsz,
struct mem_region *avail_regions, int *availsz)
{
uint64_t lpar_id, junk, ppe_id;
/* Get real mode memory region */
avail_regions[0].mr_start = 0;
lv1_get_logical_partition_id(&lpar_id);
lv1_get_logical_ppe_id(&ppe_id);
lv1_get_repository_node_value(lpar_id,
lv1_repository_string("bi") >> 32, lv1_repository_string("pu"),
ppe_id, lv1_repository_string("rm_size"),
&avail_regions[0].mr_size, &junk);
/* Now get extended memory region */
lv1_get_repository_node_value(lpar_id,
lv1_repository_string("bi") >> 32,
lv1_repository_string("rgntotal"), 0, 0,
&avail_regions[1].mr_size, &junk);
/* Convert to maximum amount we can allocate in 16 MB pages */
avail_regions[1].mr_size -= avail_regions[0].mr_size;
avail_regions[1].mr_size -= avail_regions[1].mr_size % (16*1024*1024);
*availsz = 2;
if (phys != NULL) {
memcpy(phys, avail_regions, sizeof(*phys)*2);
*physsz = 2;
}
}
static int
ps3_attach(platform_t plat)
{
uint64_t lpar_id, junk, ppe_id;
/* Get real mode memory region */
avail_regions[0].mr_start = 0;
lv1_get_logical_partition_id(&lpar_id);
lv1_get_logical_ppe_id(&ppe_id);
lv1_get_repository_node_value(lpar_id,
lv1_repository_string("bi") >> 32, lv1_repository_string("pu"),
ppe_id, lv1_repository_string("rm_size"),
&avail_regions[0].mr_size, &junk);
/* Now get extended memory region */
lv1_get_repository_node_value(lpar_id,
lv1_repository_string("bi") >> 32,
lv1_repository_string("rgntotal"), 0, 0,
&avail_regions[1].mr_size, &junk);
/* Convert to maximum amount we can allocate in 16 MB pages */
avail_regions[1].mr_size -= avail_regions[0].mr_size;
avail_regions[1].mr_size -= avail_regions[1].mr_size % (16*1024*1024);
lv1_allocate_memory(avail_regions[1].mr_size, 24 /* 16 MB pages */,
0, 0x04 /* any address */, &avail_regions[1].mr_start, &junk);
pmap_mmu_install("mmu_ps3", BUS_PROBE_SPECIFIC);
cpu_idle_hook = ps3_cpu_idle;
/* Set a breakpoint to make NULL an invalid address */
lv1_set_dabr(0x7 /* read and write, MMU on */, 2 /* kernel accesses */);
return (0);
}
static int read_node(unsigned int lpar_id, u64 n1, u64 n2, u64 n3, u64 n4,
u64 *_v1, u64 *_v2)
{
int result;
u64 v1;
u64 v2;
if (lpar_id == PS3_LPAR_ID_CURRENT) {
u64 id;
lv1_get_logical_partition_id(&id);
lpar_id = id;
}
result = lv1_read_repository_node(lpar_id, n1, n2, n3, n4, &v1,
&v2);
if (result) {
pr_warn("%s:%d: lv1_read_repository_node failed: %s\n",
__func__, __LINE__, ps3_result(result));
dump_node_name(lpar_id, n1, n2, n3, n4);
return -ENOENT;
}
dump_node(lpar_id, n1, n2, n3, n4, v1, v2);
if (_v1)
*_v1 = v1;
if (_v2)
*_v2 = v2;
if (v1 && !_v1)
pr_devel("%s:%d: warning: discarding non-zero v1: %016llx\n",
__func__, __LINE__, v1);
if (v2 && !_v2)
pr_devel("%s:%d: warning: discarding non-zero v2: %016llx\n",
__func__, __LINE__, v2);
return 0;
}
static int ps3_repository_read_rm_size(u64 *rm_size)
{
s64 result;
u64 lpar_id;
u64 ppe_id;
u64 v2;
result = lv1_get_logical_partition_id(&lpar_id);
if (result)
return -1;
result = lv1_get_logical_ppe_id(&ppe_id);
if (result)
return -1;
/*
* n1: 0000000062690000 : ....bi..
* n2: 7075000000000000 : pu......
* n3: 0000000000000001 : ........
* n4: 726d5f73697a6500 : rm_size.
*/
result = lv1_get_repository_node_value(lpar_id, 0x0000000062690000ULL,
0x7075000000000000ULL, ppe_id, 0x726d5f73697a6500ULL, rm_size,
&v2);
printf("%s:%d: ppe_id %lu \n", __func__, __LINE__,
(unsigned long)ppe_id);
printf("%s:%d: lpar_id %lu \n", __func__, __LINE__,
(unsigned long)lpar_id);
printf("%s:%d: rm_size %llxh \n", __func__, __LINE__, *rm_size);
return result ? -1 : 0;
}
static int __init ps3_register_lpm_devices(void)
{
int result;
u64 tmp1;
u64 tmp2;
struct ps3_system_bus_device *dev;
pr_debug(" -> %s:%d\n", __func__, __LINE__);
dev = kzalloc(sizeof(*dev), GFP_KERNEL);
if (!dev)
return -ENOMEM;
dev->match_id = PS3_MATCH_ID_LPM;
dev->dev_type = PS3_DEVICE_TYPE_LPM;
/* The current lpm driver only supports a single BE processor. */
result = ps3_repository_read_be_node_id(0, &dev->lpm.node_id);
if (result) {
pr_debug("%s:%d: ps3_repository_read_be_node_id failed \n",
__func__, __LINE__);
goto fail_read_repo;
}
result = ps3_repository_read_lpm_privileges(dev->lpm.node_id, &tmp1,
&dev->lpm.rights);
if (result) {
pr_debug("%s:%d: ps3_repository_read_lpm_privleges failed \n",
__func__, __LINE__);
goto fail_read_repo;
}
lv1_get_logical_partition_id(&tmp2);
if (tmp1 != tmp2) {
pr_debug("%s:%d: wrong lpar\n",
__func__, __LINE__);
result = -ENODEV;
goto fail_rights;
}
if (!(dev->lpm.rights & PS3_LPM_RIGHTS_USE_LPM)) {
pr_debug("%s:%d: don't have rights to use lpm\n",
__func__, __LINE__);
result = -EPERM;
goto fail_rights;
}
pr_debug("%s:%d: pu_id %llu, rights %llu(%llxh)\n",
__func__, __LINE__, dev->lpm.pu_id, dev->lpm.rights,
dev->lpm.rights);
result = ps3_repository_read_pu_id(0, &dev->lpm.pu_id);
if (result) {
pr_debug("%s:%d: ps3_repository_read_pu_id failed \n",
__func__, __LINE__);
goto fail_read_repo;
}
result = ps3_system_bus_device_register(dev);
if (result) {
pr_debug("%s:%d ps3_system_bus_device_register failed\n",
__func__, __LINE__);
goto fail_register;
}
pr_debug(" <- %s:%d\n", __func__, __LINE__);
return 0;
fail_register:
fail_rights:
fail_read_repo:
kfree(dev);
pr_debug(" <- %s:%d: failed\n", __func__, __LINE__);
return result;
}
