pstore: Add support for 64 Bit address space

Some architectures have their reserved RAM in 64 Bit address space.
Therefore convert mem_address module parameter to ullong.
Signed-off-by: Wladislav Wiebe <wladislav.wiebe@nokia.com>
Acked-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Tony Luck <tony.luck@intel.com>

fs/pstore/ram.c

@@ -55,8 +55,8 @@ static ulong ramoops_pmsg_size = MIN_MEM_SIZE;
 module_param_named(pmsg_size, ramoops_pmsg_size, ulong, 0400);
 MODULE_PARM_DESC(pmsg_size, "size of user space message log");
 
-static ulong mem_address;
-module_param(mem_address, ulong, 0400);
+static unsigned long long mem_address;
+module_param(mem_address, ullong, 0400);
 MODULE_PARM_DESC(mem_address,
 		"start of reserved RAM used to store oops/panic logs");
 

include/linux/pstore_ram.h

@@ -76,7 +76,7 @@ ssize_t persistent_ram_ecc_string(struct persistent_ram_zone *prz,
 
 struct ramoops_platform_data {
 	unsigned long	mem_size;
-	unsigned long	mem_address;
+	phys_addr_t	mem_address;
 	unsigned int	mem_type;
 	unsigned long	record_size;
 	unsigned long	console_size;