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Commit 15b0beaa authored by Huang Ying's avatar Huang Ying Committed by Len Brown
Browse files

Add x64 support to debugfs 



Add debugfs_create_x64. This is needed by ACPI APEI EINJ parameters support.

Signed-off-by: default avatarHuang Ying <ying.huang@intel.com>
Signed-off-by: default avatarAndi Kleen <ak@linux.intel.com>
Acked-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: default avatarLen Brown <len.brown@intel.com>
parent 482908b4

fs/debugfs/file.c

+20 −1
Original line number Original line Diff line number Diff line
@@ -277,8 +277,10 @@ DEFINE_SIMPLE_ATTRIBUTE(fops_x32, debugfs_u32_get, debugfs_u32_set, "0x%08llx\n" 
DEFINE_SIMPLE_ATTRIBUTE(fops_x32_ro, debugfs_u32_get, NULL, "0x%08llx\n");

DEFINE_SIMPLE_ATTRIBUTE(fops_x32_ro, debugfs_u32_get, NULL, "0x%08llx\n");

DEFINE_SIMPLE_ATTRIBUTE(fops_x32_wo, NULL, debugfs_u32_set, "0x%08llx\n");

DEFINE_SIMPLE_ATTRIBUTE(fops_x32_wo, NULL, debugfs_u32_set, "0x%08llx\n");





DEFINE_SIMPLE_ATTRIBUTE(fops_x64, debugfs_u64_get, debugfs_u64_set, "0x%016llx\n");



/*

/*

 * debugfs_create_x{8,16,32} - create a debugfs file that is used to read and write an unsigned {8,16,32}-bit value

 * debugfs_create_x{8,16,32,64} - create a debugfs file that is used to read and write an unsigned {8,16,32,64}-bit value

 *

 *

 * These functions are exactly the same as the above functions (but use a hex

 * These functions are exactly the same as the above functions (but use a hex

 * output for the decimal challenged). For details look at the above unsigned

 * output for the decimal challenged). For details look at the above unsigned
@@ -357,6 +359,23 @@ struct dentry *debugfs_create_x32(const char *name, mode_t mode, 
}

}

EXPORT_SYMBOL_GPL(debugfs_create_x32);

EXPORT_SYMBOL_GPL(debugfs_create_x32);





/**

 * debugfs_create_x64 - create a debugfs file that is used to read and write an unsigned 64-bit value

 * @name: a pointer to a string containing the name of the file to create.

 * @mode: the permission that the file should have

 * @parent: a pointer to the parent dentry for this file.  This should be a

 *          directory dentry if set.  If this parameter is %NULL, then the

 *          file will be created in the root of the debugfs filesystem.

 * @value: a pointer to the variable that the file should read to and write

 *         from.

 */

struct dentry *debugfs_create_x64(const char *name, mode_t mode,

				 struct dentry *parent, u64 *value)

{

	return debugfs_create_file(name, mode, parent, value, &fops_x64);

}

EXPORT_SYMBOL_GPL(debugfs_create_x64);







static int debugfs_size_t_set(void *data, u64 val)

static int debugfs_size_t_set(void *data, u64 val)

{

{

include/linux/debugfs.h

+2 −0
Original line number Original line Diff line number Diff line
@@ -63,6 +63,8 @@ struct dentry *debugfs_create_x16(const char *name, mode_t mode, 
				  struct dentry *parent, u16 *value);

				  struct dentry *parent, u16 *value);

struct dentry *debugfs_create_x32(const char *name, mode_t mode,

struct dentry *debugfs_create_x32(const char *name, mode_t mode,

				  struct dentry *parent, u32 *value);

				  struct dentry *parent, u32 *value);

struct dentry *debugfs_create_x64(const char *name, mode_t mode,

				  struct dentry *parent, u64 *value);

struct dentry *debugfs_create_size_t(const char *name, mode_t mode,

struct dentry *debugfs_create_size_t(const char *name, mode_t mode,

				     struct dentry *parent, size_t *value);

				     struct dentry *parent, size_t *value);

struct dentry *debugfs_create_bool(const char *name, mode_t mode,

struct dentry *debugfs_create_bool(const char *name, mode_t mode,