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From: Sander Vanheule <sander@svanheule.net>
To: linux-mips@vger.kernel.org
Cc: INAGAKI Hiroshi <musashino.open@gmail.com>,
	Jiaxun Yang <jiaxun.yang@flygoat.com>,
	Paul Burton <paulburton@kernel.org>,
	Thomas Bogendoerfer <tsbogend@alpha.franken.de>,
	linux-kernel@vger.kernel.org,
	Sander Vanheule <sander@svanheule.net>
Subject: [PATCH v2 2/2] MIPS: generic: enable SMP on SMVP systems
Date: Sat, 18 Dec 2021 11:05:11 +0100	[thread overview]
Message-ID: <20211218100511.42508-3-sander@svanheule.net> (raw)
In-Reply-To: <20211218100511.42508-1-sander@svanheule.net>

In addition to CPS SMP setups, also try to initialise MT SMP setups with
multiple VPEs per CPU core. CMP SMP support is not provided as it is
considered deprecated.

Additionally, rework the code by dropping the err variable and make it
similar to how other platforms perform this initialisation.

Co-developed-by: INAGAKI Hiroshi <musashino.open@gmail.com>
Signed-off-by: INAGAKI Hiroshi <musashino.open@gmail.com>
Signed-off-by: Sander Vanheule <sander@svanheule.net>
---
 arch/mips/generic/init.c | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/arch/mips/generic/init.c b/arch/mips/generic/init.c
index 1842cddd8356..1d712eac1617 100644
--- a/arch/mips/generic/init.c
+++ b/arch/mips/generic/init.c
@@ -110,14 +110,15 @@ void __init plat_mem_setup(void)
 
 void __init device_tree_init(void)
 {
-	int err;
-
 	unflatten_and_copy_device_tree();
 	mips_cpc_probe();
 
-	err = register_cps_smp_ops();
-	if (err)
-		err = register_up_smp_ops();
+	if (!register_cps_smp_ops())
+		return;
+	if (!register_vsmp_smp_ops())
+		return;
+
+	register_up_smp_ops();
 }
 
 int __init apply_mips_fdt_fixups(void *fdt_out, size_t fdt_out_size,
-- 
2.33.1


  parent reply	other threads:[~2021-12-18 10:05 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-12-18 10:05 [PATCH v2 0/2] Support MT SMP on generic MIPS kernel Sander Vanheule
2021-12-18 10:05 ` [PATCH v2 1/2] MIPS: only register MT SMP ops if MT is supported Sander Vanheule
2021-12-18 10:05 ` Sander Vanheule [this message]
2021-12-21 13:56 ` [PATCH v2 0/2] Support MT SMP on generic MIPS kernel Thomas Bogendoerfer

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