From f9e5540a6d6b1cfd8584249b6aa4c1b9b6af1c95 Mon Sep 17 00:00:00 2001
From: Sasha Levin <sashal@kernel.org>
Date: Fri, 5 Mar 2021 10:28:53 -0600
Subject: x86/platform/uv: Set section block size for hubless architectures

From: Mike Travis <mike.travis@hpe.com>

[ Upstream commit 6840a150b9daf35e4d21ab9780d0a03b4ed74a5b ]

Commit

  bbbd2b51a2aa ("x86/platform/UV: Use new set memory block size function")

added a call to set the block size value that is needed by the kernel
to set the boundaries in the section list. This was done for UV Hubbed
systems but missed in the UV Hubless setup. Fix that mistake by adding
that same set call for hubless systems, which support the same NVRAMs
and Intel BIOS, thus the same problem occurs.

 [ bp: Massage commit message. ]

Fixes: bbbd2b51a2aa ("x86/platform/UV: Use new set memory block size function")
Signed-off-by: Mike Travis <mike.travis@hpe.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Steve Wahl <steve.wahl@hpe.com>
Reviewed-by: Russ Anderson <rja@hpe.com>
Link: https://lkml.kernel.org/r/20210305162853.299892-1-mike.travis@hpe.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/x86/kernel/apic/x2apic_uv_x.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/x86/kernel/apic/x2apic_uv_x.c b/arch/x86/kernel/apic/x2apic_uv_x.c
index 52bc217ca8c3..c9ddd233e32f 100644
--- a/arch/x86/kernel/apic/x2apic_uv_x.c
+++ b/arch/x86/kernel/apic/x2apic_uv_x.c
@@ -1671,6 +1671,9 @@ static __init int uv_system_init_hubless(void)
 	if (rc < 0)
 		return rc;
 
+	/* Set section block size for current node memory */
+	set_block_size();
+
 	/* Create user access node */
 	if (rc >= 0)
 		uv_setup_proc_files(1);
-- 
2.30.2