diff options
Diffstat (limited to 'arch/alpha/kernel/gct.c')
-rw-r--r-- | arch/alpha/kernel/gct.c | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/arch/alpha/kernel/gct.c b/arch/alpha/kernel/gct.c new file mode 100644 index 000000000..8ac0088dc --- /dev/null +++ b/arch/alpha/kernel/gct.c @@ -0,0 +1,48 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * linux/arch/alpha/kernel/gct.c + */ + +#include <linux/kernel.h> +#include <linux/types.h> +#include <linux/errno.h> + +#include <asm/hwrpb.h> +#include <asm/gct.h> + +int +gct6_find_nodes(gct6_node *node, gct6_search_struct *search) +{ + gct6_search_struct *wanted; + int status = 0; + + /* First check the magic number. */ + if (node->magic != GCT_NODE_MAGIC) { + printk(KERN_ERR "GCT Node MAGIC incorrect - GCT invalid\n"); + return -EINVAL; + } + + /* Check against the search struct. */ + for (wanted = search; + wanted && (wanted->type | wanted->subtype); + wanted++) { + if (node->type != wanted->type) + continue; + if (node->subtype != wanted->subtype) + continue; + + /* Found it -- call out. */ + if (wanted->callout) + wanted->callout(node); + } + + /* Now walk the tree, siblings first. */ + if (node->next) + status |= gct6_find_nodes(GCT_NODE_PTR(node->next), search); + + /* Then the children. */ + if (node->child) + status |= gct6_find_nodes(GCT_NODE_PTR(node->child), search); + + return status; +} |