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From: Bharata B Rao <bharata@linux.ibm.com>
To: linuxppc-dev@lists.ozlabs.org
Cc: aneesh.kumar@linux.ibm.com, Bharata B Rao <bharata@linux.ibm.com>,
	npiggin@gmail.com
Subject: [PATCH v3 2/3] powerpc/pseries: H_REGISTER_PROC_TBL should ask for GTSE only if enabled
Date: Fri,  3 Jul 2020 11:06:07 +0530	[thread overview]
Message-ID: <20200703053608.12884-3-bharata@linux.ibm.com> (raw)
In-Reply-To: <20200703053608.12884-1-bharata@linux.ibm.com>

H_REGISTER_PROC_TBL asks for GTSE by default. GTSE flag bit should
be set only when GTSE is supported.

Signed-off-by: Bharata B Rao <bharata@linux.ibm.com>
Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
---
 arch/powerpc/platforms/pseries/lpar.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/arch/powerpc/platforms/pseries/lpar.c b/arch/powerpc/platforms/pseries/lpar.c
index fd26f3d21d7b..f82569a505f1 100644
--- a/arch/powerpc/platforms/pseries/lpar.c
+++ b/arch/powerpc/platforms/pseries/lpar.c
@@ -1680,9 +1680,11 @@ static int pseries_lpar_register_process_table(unsigned long base,
 
 	if (table_size)
 		flags |= PROC_TABLE_NEW;
-	if (radix_enabled())
-		flags |= PROC_TABLE_RADIX | PROC_TABLE_GTSE;
-	else
+	if (radix_enabled()) {
+		flags |= PROC_TABLE_RADIX;
+		if (mmu_has_feature(MMU_FTR_GTSE))
+			flags |= PROC_TABLE_GTSE;
+	} else
 		flags |= PROC_TABLE_HPT_SLB;
 	for (;;) {
 		rc = plpar_hcall_norets(H_REGISTER_PROC_TBL, flags, base,
-- 
2.21.3


  parent reply	other threads:[~2020-07-03  5:42 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-07-03  5:36 [PATCH v3 0/3] Off-load TLB invalidations to host for !GTSE Bharata B Rao
2020-07-03  5:36 ` [PATCH v3 1/3] powerpc/mm: Enable radix GTSE only if supported Bharata B Rao
2020-07-06  1:49   ` Santosh Sivaraj
2020-07-06  4:17     ` Bharata B Rao
2020-07-03  5:36 ` Bharata B Rao [this message]
2020-07-03  5:36 ` [PATCH v3 3/3] powerpc/mm/book3s64/radix: Off-load TLB invalidations to host when !GTSE Bharata B Rao
2020-07-16 12:55 ` [PATCH v3 0/3] Off-load TLB invalidations to host for !GTSE Michael Ellerman
2020-07-16 17:27 ` Qian Cai
2020-07-16 17:27   ` Qian Cai
2020-07-16 23:09   ` Stephen Rothwell
2020-07-16 23:09     ` Stephen Rothwell
2020-07-17  2:08   ` Nicholas Piggin
2020-07-17  2:08     ` Nicholas Piggin
2020-07-17  2:44     ` Nicholas Piggin
2020-07-17  2:44       ` Nicholas Piggin
2020-07-17  4:28       ` Bharata B Rao
2020-07-17  4:28         ` Bharata B Rao
2020-07-18 12:40         ` Michael Ellerman
2020-07-18 12:40           ` Michael Ellerman

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