linux-kernel - [tip: x86/cpu] x86/cpu/hygon: Set __max_die_per

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Date:   Tue, 02 Mar 2021 15:08:53 -0000
From:   "tip-bot2 for Pu Wen" <tip-bot2@...utronix.de>
To:     linux-tip-commits@...r.kernel.org
Cc:     Pu Wen <puwen@...on.cn>, Borislav Petkov <bp@...e.de>,
        x86@...nel.org, linux-kernel@...r.kernel.org
Subject: [tip: x86/cpu] x86/cpu/hygon: Set __max_die_per_package on Hygon

The following commit has been merged into the x86/cpu branch of tip:

Commit-ID:     191d799ecaca4d5c7f87c624ae36581237ab8a87
Gitweb:        https://git.kernel.org/tip/191d799ecaca4d5c7f87c624ae36581237ab8a87
Author:        Pu Wen <puwen@...on.cn>
AuthorDate:    Tue, 02 Mar 2021 10:02:17 +08:00
Committer:     Borislav Petkov <bp@...e.de>
CommitterDate: Tue, 02 Mar 2021 15:57:39 +01:00

x86/cpu/hygon: Set __max_die_per_package on Hygon

Set the maximum DIE per package variable on Hygon using the
nodes_per_socket value in order to do per-DIE manipulations for drivers
such as powercap.

Signed-off-by: Pu Wen <puwen@...on.cn>
Signed-off-by: Borislav Petkov <bp@...e.de>
Link: https://lkml.kernel.org/r/20210302020217.1827-1-puwen@hygon.cn
---
 arch/x86/kernel/cpu/hygon.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/x86/kernel/cpu/hygon.c b/arch/x86/kernel/cpu/hygon.c
index ae59115..0bd6c74 100644
--- a/arch/x86/kernel/cpu/hygon.c
+++ b/arch/x86/kernel/cpu/hygon.c
@@ -215,12 +215,12 @@ static void bsp_init_hygon(struct cpuinfo_x86 *c)
 		u32 ecx;
 
 		ecx = cpuid_ecx(0x8000001e);
-		nodes_per_socket = ((ecx >> 8) & 7) + 1;
+		__max_die_per_package = nodes_per_socket = ((ecx >> 8) & 7) + 1;
 	} else if (boot_cpu_has(X86_FEATURE_NODEID_MSR)) {
 		u64 value;
 
 		rdmsrl(MSR_FAM10H_NODE_ID, value);
-		nodes_per_socket = ((value >> 3) & 7) + 1;
+		__max_die_per_package = nodes_per_socket = ((value >> 3) & 7) + 1;
 	}
 
 	if (!boot_cpu_has(X86_FEATURE_AMD_SSBD) &&