Commit 9872cbfb authored by Christophe Leroy's avatar Christophe Leroy Committed by Michael Ellerman
Browse files

powerpc/603: Remove outdated comment 



Since commit 84de6ab0 ("powerpc/603: don't handle PAGE_ACCESSED
in TLB miss handlers.") page table is not updated anymore by
TLB miss handlers.

Remove the comment.

Signed-off-by: default avatarChristophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/38b1ffefd2146fa56bf8aa605d476ad9736bbb37.1643613296.git.christophe.leroy@csgroup.eu
parent dd75080a

arch/powerpc/kernel/head_book3s_32.S

+0 −8
Original line number Diff line number Diff line
@@ -504,10 +504,6 @@ DataLoadTLBMiss: 
	lwz	r0,0(r2)		/* get linux-style pte */

	andc.	r1,r1,r0		/* check access & ~permission */

	bne-	DataAddressInvalid	/* return if access not permitted */

	/*

	 * NOTE! We are assuming this is not an SMP system, otherwise

	 * we would need to update the pte atomically with lwarx/stwcx.

	 */

	/* Convert linux-style PTE to low word of PPC-style PTE */

	rlwinm	r1,r0,32-9,30,30	/* _PAGE_RW -> PP msb */

	rlwimi	r0,r0,32-1,30,30	/* _PAGE_USER -> PP msb */
@@ -586,10 +582,6 @@ DataStoreTLBMiss: 
	lwz	r0,0(r2)		/* get linux-style pte */

	andc.	r1,r1,r0		/* check access & ~permission */

	bne-	DataAddressInvalid	/* return if access not permitted */

	/*

	 * NOTE! We are assuming this is not an SMP system, otherwise

	 * we would need to update the pte atomically with lwarx/stwcx.

	 */

	/* Convert linux-style PTE to low word of PPC-style PTE */

	rlwimi	r0,r0,32-2,31,31	/* _PAGE_USER -> PP lsb */

	li	r1,0xe06		/* clear out reserved bits & PP msb */