Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 2374d0af authored by LEROY Christophe's avatar LEROY Christophe Committed by Scott Wood
Browse files

powerpc/8xx: remove remaining unnecessary code in FixupDAR 



Since commit 33fb845a ("powerpc/8xx: Don't use MD_TWC for walk"), MD_EPN and
MD_TWC are not writen anymore in FixupDAR so saving r3 has become useless.

Signed-off-by: default avatarChristophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: default avatarScott Wood <scottwood@freescale.com>
parent debddd95

arch/powerpc/kernel/head_8xx.S

+0 −6
Original line number Diff line number Diff line
@@ -529,9 +529,6 @@ DARFixed:/* Return from dcbx instruction bug workaround */ 
 /* define if you don't want to use self modifying code */

#define NO_SELF_MODIFYING_CODE

FixupDAR:/* Entry point for dcbx workaround. */

#ifdef CONFIG_8xx_CPU6

	mtspr	SPRN_DAR, r3

#endif

	mtspr	SPRN_SPRG_SCRATCH2, r10

	/* fetch instruction from memory. */

	mfspr	r10, SPRN_SRR0
@@ -548,9 +545,6 @@ FixupDAR:/* Entry point for dcbx workaround. */ 
	/* Extract level 2 index */

	rlwinm	r11, r11, 32 - (PAGE_SHIFT - 2), 32 - PAGE_SHIFT, 29

	lwzx	r11, r10, r11	/* Get the pte */

#ifdef CONFIG_8xx_CPU6

	mfspr	r3, SPRN_DAR

#endif

	/* concat physical page address(r11) and page offset(r10) */

	mfspr	r10, SPRN_SRR0

	rlwimi	r11, r10, 0, 32 - PAGE_SHIFT, 31