linux-kernel - [PATCH] MIPS: select CPU_MIPS64 for remaining MIPS64 CPUs

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Message-Id: <20210227122605.2680138-1-Jason@zx2c4.com>
Date:   Sat, 27 Feb 2021 13:26:05 +0100
From:   "Jason A. Donenfeld" <Jason@...c4.com>
To:     linux-kernel@...r.kernel.org, linux-mips@...r.kernel.org
Cc:     "Jason A. Donenfeld" <Jason@...c4.com>,
        Thomas Bogendoerfer <tsbogend@...ha.franken.de>,
        Ralf Baechle <ralf@...ux-mips.org>,
        George Cherian <gcherian@...vell.com>,
        Huacai Chen <chenhuacai@...nel.org>,
        Jiaxun Yang <jiaxun.yang@...goat.com>
Subject: [PATCH] MIPS: select CPU_MIPS64 for remaining MIPS64 CPUs

The CPU_MIPS64 and CPU_MIPS32 variables are supposed to be able to
distinguish broadly between 64-bit and 32-bit MIPS CPUs. However, they
weren't selected by the specialty CPUs, Octeon and Loongson, which meant
it was possible to hit a weird state of:

    MIPS=y, CONFIG_64BIT=y, CPU_MIPS64=n

This commit rectifies the issue by having CPU_MIPS64 be selected when
the missing Octeon or Loongson models are selected.

Cc: Thomas Bogendoerfer <tsbogend@...ha.franken.de>
Cc: Ralf Baechle <ralf@...ux-mips.org>
Cc: George Cherian <gcherian@...vell.com>
Cc: Huacai Chen <chenhuacai@...nel.org>
Cc: Jiaxun Yang <jiaxun.yang@...goat.com>
Signed-off-by: Jason A. Donenfeld <Jason@...c4.com>
---
 arch/mips/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index d89efba3d8a4..3e0e8f1d2e82 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -2118,7 +2118,7 @@ config CPU_MIPS32
 config CPU_MIPS64
 	bool
 	default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R5 || \
-		     CPU_MIPS64_R6
+		     CPU_MIPS64_R6 || CPU_LOONGSON64 || CPU_CAVIUM_OCTEON
 
 #
 # These indicate the revision of the architecture
-- 
2.30.1