From: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>
To: benh@kernel.crashing.org, paulus@samba.org, mpe@ellerman.id.au
Cc: linuxppc-dev@lists.ozlabs.org,
"Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>
Subject: [PATCH] powerpc/mm/radix: Update LPCR HR bit as per ISA
Date: Thu, 2 Jun 2016 15:10:57 +0530 [thread overview]
Message-ID: <1464860457-29253-1-git-send-email-aneesh.kumar@linux.vnet.ibm.com> (raw)
We need to se HR bit LPCR for radix partitions.
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
---
arch/powerpc/include/asm/reg.h | 1 +
arch/powerpc/mm/pgtable-radix.c | 4 ++--
2 files changed, 3 insertions(+), 2 deletions(-)
diff --git a/arch/powerpc/include/asm/reg.h b/arch/powerpc/include/asm/reg.h
index c1e82e968506..652147ef5ae3 100644
--- a/arch/powerpc/include/asm/reg.h
+++ b/arch/powerpc/include/asm/reg.h
@@ -348,6 +348,7 @@
#define LPCR_RMI 0x00000002 /* real mode is cache inhibit */
#define LPCR_HDICE 0x00000001 /* Hyp Decr enable (HV,PR,EE) */
#define LPCR_UPRT 0x00400000 /* Use Process Table (ISA 3) */
+#define LPCR_HR 0x00100000
#ifndef SPRN_LPID
#define SPRN_LPID 0x13F /* Logical Partition Identifier */
#endif
diff --git a/arch/powerpc/mm/pgtable-radix.c b/arch/powerpc/mm/pgtable-radix.c
index c939e6e57a9e..73aa402047ef 100644
--- a/arch/powerpc/mm/pgtable-radix.c
+++ b/arch/powerpc/mm/pgtable-radix.c
@@ -340,7 +340,7 @@ void __init radix__early_init_mmu(void)
radix_init_page_sizes();
if (!firmware_has_feature(FW_FEATURE_LPAR)) {
lpcr = mfspr(SPRN_LPCR);
- mtspr(SPRN_LPCR, lpcr | LPCR_UPRT);
+ mtspr(SPRN_LPCR, lpcr | LPCR_UPRT | LPCR_HR);
radix_init_partition_table();
}
@@ -355,7 +355,7 @@ void radix__early_init_mmu_secondary(void)
*/
if (!firmware_has_feature(FW_FEATURE_LPAR)) {
lpcr = mfspr(SPRN_LPCR);
- mtspr(SPRN_LPCR, lpcr | LPCR_UPRT);
+ mtspr(SPRN_LPCR, lpcr | LPCR_UPRT | LPCR_HR);
mtspr(SPRN_PTCR,
__pa(partition_tb) | (PATB_SIZE_SHIFT - 12));
--
2.7.4
next reply other threads:[~2016-06-02 9:51 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-06-02 9:40 Aneesh Kumar K.V [this message]
2016-06-03 1:01 ` [PATCH] powerpc/mm/radix: Update LPCR HR bit as per ISA Benjamin Herrenschmidt
2016-06-08 4:33 ` Michael Ellerman
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