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Commit e56770fb authored by Mike Frysinger's avatar Mike Frysinger Committed by Linus Torvalds
Browse files

Blackfin: override text/data checking functions 



Signed-off-by: default avatarMike Frysinger <vapier@gentoo.org>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Robin Getz <rgetz@blackfin.uclinux.org>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 2a9ad18d

arch/blackfin/include/asm/sections.h

+35 −3
Original line number Diff line number Diff line 
#ifndef _BLACKFIN_SECTIONS_H

#define _BLACKFIN_SECTIONS_H



/* nothing to see, move along */

#include <asm-generic/sections.h>



/* only used when MTD_UCLINUX */

extern unsigned long memory_mtd_start, memory_mtd_end, mtd_size;
@@ -15,4 +12,39 @@ extern char _stext_l1[], _etext_l1[], _sdata_l1[], _edata_l1[], _sbss_l1[], 
	_stext_l2[], _etext_l2[], _sdata_l2[], _edata_l2[], _sbss_l2[],

	_ebss_l2[], _l2_lma_start[];



#include <asm/mem_map.h>



/* Blackfin systems have discontinuous memory map and no virtualized memory */

static inline int arch_is_kernel_text(unsigned long addr)

{

	return

		(L1_CODE_LENGTH &&

		 addr >= (unsigned long)_stext_l1 &&

		 addr <  (unsigned long)_etext_l1)

		||

		(L2_LENGTH &&

		 addr >= (unsigned long)_stext_l2 &&

		 addr <  (unsigned long)_etext_l2);

}

#define arch_is_kernel_text(addr) arch_is_kernel_text(addr)



static inline int arch_is_kernel_data(unsigned long addr)

{

	return

		(L1_DATA_A_LENGTH &&

		 addr >= (unsigned long)_sdata_l1 &&

		 addr <  (unsigned long)_ebss_l1)

		||

		(L1_DATA_B_LENGTH &&

		 addr >= (unsigned long)_sdata_b_l1 &&

		 addr <  (unsigned long)_ebss_b_l1)

		||

		(L2_LENGTH &&

		 addr >= (unsigned long)_sdata_l2 &&

		 addr <  (unsigned long)_ebss_l2);

}

#define arch_is_kernel_data(addr) arch_is_kernel_data(addr)



#include <asm-generic/sections.h>



#endif