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Tue, 21 May 2024 16:12:20 -0400 (EDT) From: Jiaxun Yang Date: Tue, 21 May 2024 21:12:13 +0100 Subject: [PATCH 2/4] LoongArch: smp: Add all CPUs enabled by fdt to NUMA node 0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20240521-loongarch-booting-fixes-v1-2-659c201c0370@flygoat.com> References: <20240521-loongarch-booting-fixes-v1-0-659c201c0370@flygoat.com> In-Reply-To: <20240521-loongarch-booting-fixes-v1-0-659c201c0370@flygoat.com> To: Huacai Chen , Binbin Zhou Cc: loongarch@lists.linux.dev, linux-kernel@vger.kernel.org, Jiaxun Yang , stable@vger.kernel.org X-Mailer: b4 0.13.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=1173; i=jiaxun.yang@flygoat.com; h=from:subject:message-id; bh=yVZuZGhQZlh0GBb5JOMcxygXqnWx2vLCWpjVfeLHzuM=; b=kA0DAAoWQ3EMfdd3KcMByyZiAGZNACChHjrVcsyIHyzheKMNj1SUKWaWkZhhLmsXhkYGfdMve 4h1BAAWCgAdFiEEVBAijrCB0aDX4Gr8Q3EMfdd3KcMFAmZNACAACgkQQ3EMfdd3KcMsVgEA3Rz2 35ZT8Tpot634lFZd4LP2GxGhbR/n7U+p0fLrqEIBALH0+M4jEJ3fyOz+IM4VzffcSxTHMAIC/gv yOPb0Ue4M X-Developer-Key: i=jiaxun.yang@flygoat.com; a=openpgp; fpr=980379BEFEBFBF477EA04EF9C111949073FC0F67 NUMA enabled kernel on FDT based machine fails to boot because CPUs are all in NUMA_NO_NODE and mm subsystem won't accept that. Fix by adding them to default NUMA node for now. Cc: stable@vger.kernel.org Fixes: 88d4d957edc7 ("LoongArch: Add FDT booting support from efi system ta= ble") Signed-off-by: Jiaxun Yang --- arch/loongarch/kernel/smp.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/arch/loongarch/kernel/smp.c b/arch/loongarch/kernel/smp.c index 0dfe2388ef41..866757b76ecb 100644 --- a/arch/loongarch/kernel/smp.c +++ b/arch/loongarch/kernel/smp.c @@ -273,7 +273,6 @@ static void __init fdt_smp_setup(void) =20 if (cpuid =3D=3D loongson_sysconf.boot_cpu_id) { cpu =3D 0; - numa_add_cpu(cpu); } else { cpu =3D cpumask_next_zero(-1, cpu_present_mask); } @@ -283,6 +282,10 @@ static void __init fdt_smp_setup(void) set_cpu_present(cpu, true); __cpu_number_map[cpuid] =3D cpu; __cpu_logical_map[cpu] =3D cpuid; + + early_numa_add_cpu(cpu, 0); + set_cpuid_to_node(cpuid, 0); + numa_add_cpu(cpu); } =20 loongson_sysconf.nr_cpus =3D num_processors; --=20 2.43.0