powerpc/mm: Fixup wrong LPCR_VRMASD value
authorAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Thu, 8 Dec 2016 03:42:13 +0000 (09:12 +0530)
committerMichael Ellerman <mpe@ellerman.id.au>
Wed, 25 Jan 2017 02:34:19 +0000 (13:34 +1100)
In commit a4b349540a26af ("powerpc/mm: Cleanup LPCR defines") we updated
LPCR_VRMASD wrongly as below.

-#define   LPCR_VRMASD  (0x1ful << (63-16))
+#define   LPCR_VRMASD_SH       47
+#define   LPCR_VRMASD          (ASM_CONST(1) << LPCR_VRMASD_SH)

We initialize the VRMA bits in LPCR to 0x00 in kvm. Hence using a
different mask value as above while updating lpcr should not have any
impact.

This patch updates it to the correct value.

Fixes: a4b349540a26 ("powerpc/mm: Cleanup LPCR defines")
Reported-by: Ram Pai <linuxram@us.ibm.com>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Jia He <hejianet@gmail.com>
Acked-by: Paul Mackerras <paulus@ozlabs.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
arch/powerpc/include/asm/reg.h

index 0d4531a..818c4e8 100644 (file)
 #define   LPCR_DPFD_SH         52
 #define   LPCR_DPFD            (ASM_CONST(7) << LPCR_DPFD_SH)
 #define   LPCR_VRMASD_SH       47
-#define   LPCR_VRMASD          (ASM_CONST(1) << LPCR_VRMASD_SH)
+#define   LPCR_VRMASD          (ASM_CONST(0x1f) << LPCR_VRMASD_SH)
 #define   LPCR_VRMA_L          ASM_CONST(0x0008000000000000)
 #define   LPCR_VRMA_LP0                ASM_CONST(0x0001000000000000)
 #define   LPCR_VRMA_LP1                ASM_CONST(0x0000800000000000)