From 2e8e4f5b80e101da588af650de0ff6b3c475d6b3 Mon Sep 17 00:00:00 2001 From: Dale Farnsworth Date: Tue, 16 Dec 2008 06:22:59 +0000 Subject: powerpc: Setup OF properties for ppc32 kexec Refactor the setting of kexec OF properties, moving the common code from machine_kexec_64.c to machine_kexec.c where it can be used on both ppc64 and ppc32. This is needed for kexec to work on ppc32 platforms. Signed-off-by: Dale Farnsworth Signed-off-by: Anton Vorontsov Signed-off-by: Paul Mackerras --- arch/powerpc/kernel/machine_kexec_64.c | 24 +++++------------------- 1 file changed, 5 insertions(+), 19 deletions(-) (limited to 'arch/powerpc/kernel/machine_kexec_64.c') diff --git a/arch/powerpc/kernel/machine_kexec_64.c b/arch/powerpc/kernel/machine_kexec_64.c index 3c4ca046e854..a89bce834a51 100644 --- a/arch/powerpc/kernel/machine_kexec_64.c +++ b/arch/powerpc/kernel/machine_kexec_64.c @@ -289,7 +289,7 @@ void default_machine_kexec(struct kimage *image) } /* Values we need to export to the second kernel via the device tree. */ -static unsigned long htab_base, kernel_end; +static unsigned long htab_base; static struct property htab_base_prop = { .name = "linux,htab-base", @@ -303,25 +303,20 @@ static struct property htab_size_prop = { .value = &htab_size_bytes, }; -static struct property kernel_end_prop = { - .name = "linux,kernel-end", - .length = sizeof(unsigned long), - .value = &kernel_end, -}; - static void __init export_htab_values(void) { struct device_node *node; struct property *prop; + /* On machines with no htab htab_address is NULL */ + if (!htab_address) + return; + node = of_find_node_by_path("/chosen"); if (!node) return; /* remove any stale propertys so ours can be found */ - prop = of_find_property(node, kernel_end_prop.name, NULL); - if (prop) - prom_remove_property(node, prop); prop = of_find_property(node, htab_base_prop.name, NULL); if (prop) prom_remove_property(node, prop); @@ -329,19 +324,10 @@ static void __init export_htab_values(void) if (prop) prom_remove_property(node, prop); - /* information needed by userspace when using default_machine_kexec */ - kernel_end = __pa(_end); - prom_add_property(node, &kernel_end_prop); - - /* On machines with no htab htab_address is NULL */ - if (NULL == htab_address) - goto out; - htab_base = __pa(htab_address); prom_add_property(node, &htab_base_prop); prom_add_property(node, &htab_size_prop); - out: of_node_put(node); } -- cgit v1.2.3