[POWERPC] PS3: Add logical performance monitor device support
Add PS3 logical performance monitor device support to the
PS3 system-bus and platform device registration routines.
Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
diff --git a/arch/powerpc/platforms/ps3/device-init.c b/arch/powerpc/platforms/ps3/device-init.c
index 05c7c1c..9d251d0 100644
--- a/arch/powerpc/platforms/ps3/device-init.c
+++ b/arch/powerpc/platforms/ps3/device-init.c
@@ -31,6 +31,89 @@
#include "platform.h"
+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 %lu, rights %lu(%lxh)\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;
+}
+
/**
* ps3_setup_gelic_device - Setup and register a gelic device instance.
*
@@ -827,6 +910,8 @@
ps3_register_sound_devices();
+ ps3_register_lpm_devices();
+
pr_debug(" <- %s:%d\n", __func__, __LINE__);
return 0;
}