powerpc/ps3: Add PS3 repository write support

Add a new config option CONFIG_PS3_REPOSITORY_WRITE that
conditionally builds in support to create, write and delete
nodes in the PS3 system repository.

This support will allow Linux based bootloaders to manage data
in the system repository for use by later boot stages,

Signed-off-by: Geoff Levand <geoff@infradead.org>

1 files changed, 58 insertions, 0 deletions

diff --git a/arch/powerpc/platforms/ps3/repository.c b/arch/powerpc/platforms/ps3/repository.c
index 7bdfea336f5..b31142cb9e5 100644
--- a/arch/powerpc/platforms/ps3/repository.c
+++ b/arch/powerpc/platforms/ps3/repository.c
@@ -1002,6 +1002,64 @@ int ps3_repository_read_lpm_privileges(unsigned int be_index, u64 *lpar,
 			    lpar, rights);
 }
 
+#if defined(CONFIG_PS3_REPOSITORY_WRITE)
+
+static int create_node(u64 n1, u64 n2, u64 n3, u64 n4, u64 v1, u64 v2)
+{
+	int result;
+
+	dump_node(0, n1, n2, n3, n4, v1, v2);
+
+	result = lv1_create_repository_node(n1, n2, n3, n4, v1, v2);
+
+	if (result) {
+		pr_devel("%s:%d: lv1_create_repository_node failed: %s\n",
+			__func__, __LINE__, ps3_result(result));
+		return -ENOENT;
+	}
+
+	return 0;
+}
+
+static int delete_node(u64 n1, u64 n2, u64 n3, u64 n4)
+{
+	int result;
+
+	dump_node(0, n1, n2, n3, n4, 0, 0);
+
+	result = lv1_delete_repository_node(n1, n2, n3, n4);
+
+	if (result) {
+		pr_devel("%s:%d: lv1_delete_repository_node failed: %s\n",
+			__func__, __LINE__, ps3_result(result));
+		return -ENOENT;
+	}
+
+	return 0;
+}
+
+static int write_node(u64 n1, u64 n2, u64 n3, u64 n4, u64 v1, u64 v2)
+{
+	int result;
+
+	result = create_node(n1, n2, n3, n4, v1, v2);
+
+	if (!result)
+		return 0;
+
+	result = lv1_write_repository_node(n1, n2, n3, n4, v1, v2);
+
+	if (result) {
+		pr_devel("%s:%d: lv1_write_repository_node failed: %s\n",
+			__func__, __LINE__, ps3_result(result));
+		return -ENOENT;
+	}
+
+	return 0;
+}
+
+#endif /* defined(CONFIG_PS3_WRITE_REPOSITORY) */
+
 #if defined(DEBUG)
 
 int ps3_repository_dump_resource_info(const struct ps3_repository_device *repo)