powerpc/mm: Don't be too strict with _etext alignment on PPC32

	  Used to define the stack size. The default is almost always what you

	  want. Only change this if you know what you are doing.

config ETEXT_SHIFT_BOOL

	bool "Set custom etext alignment" if STRICT_KERNEL_RWX && \

					     (PPC_BOOK3S_32 || PPC_8xx)

	depends on ADVANCED_OPTIONS

	help

	  This option allows you to set the kernel end of text alignment. When

	  RAM is mapped by blocks, the alignment needs to fit the size and

	  number of possible blocks. The default should be OK for most configs.

	  Say N here unless you know what you are doing.

config ETEXT_SHIFT

	int "_etext shift" if ETEXT_SHIFT_BOOL

	range 17 28 if STRICT_KERNEL_RWX && PPC_BOOK3S_32

	range 19 23 if STRICT_KERNEL_RWX && PPC_8xx

	default 17 if STRICT_KERNEL_RWX && PPC_BOOK3S_32

	default 19 if STRICT_KERNEL_RWX && PPC_8xx

	default PPC_PAGE_SHIFT

	help

	  On Book3S 32 (603+), IBATs are used to map kernel text.

	  Smaller is the alignment, greater is the number of necessary IBATs.

	  On 8xx, large pages (512kb or 8M) are used to map kernel linear

	  memory. Aligning to 8M reduces TLB misses as only 8M pages are used

	  in that case.

config DATA_SHIFT_BOOL

	bool "Set custom data alignment" if STRICT_KERNEL_RWX && \

					    (PPC_BOOK3S_32 || PPC_8xx)

#include <asm/thread_info.h>

#define STRICT_ALIGN_SIZE	(1 << CONFIG_DATA_SHIFT)

#define ETEXT_ALIGN_SIZE	(1 << CONFIG_ETEXT_SHIFT)

ENTRY(_stext)

	} :text

	. = ALIGN(ETEXT_ALIGN_SIZE);

	. = ALIGN(PAGE_SIZE);

	_etext = .;

	PROVIDE32 (etext = .);