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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. In particular, this affects our octeonplus target. It has been posted to LKML here: https://lore.kernel.org/linux-mips/20210227122605.2680138-1-Jason@zx2c4.com/ Cc: Ilya Lipnitskiy <ilya.lipnitskiy@gmail.com> Cc: David Bauer <mail@david-bauer.net> Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
37 lines
1.3 KiB
Diff
37 lines
1.3 KiB
Diff
From 6523061868212473f63812a0c477a161742bed42 Mon Sep 17 00:00:00 2001
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From: "Jason A. Donenfeld" <Jason@zx2c4.com>
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Date: Sat, 27 Feb 2021 13:20:24 +0100
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Subject: [PATCH] MIPS: select CPU_MIPS64 for remaining MIPS64 CPUs
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The CPU_MIPS64 and CPU_MIPS32 variables are supposed to be able to
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distinguish broadly between 64-bit and 32-bit MIPS CPUs. However, they
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weren't selected by the specialty CPUs, Octeon and Loongson, which meant
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it was possible to hit a weird state of:
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MIPS=y, CONFIG_64BIT=y, CPU_MIPS64=n
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This commit rectifies the issue by having CPU_MIPS64 be selected when
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the missing Octeon or Loongson models are selected.
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Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
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Cc: Ralf Baechle <ralf@linux-mips.org>
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Cc: George Cherian <gcherian@marvell.com>
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Cc: Huacai Chen <chenhuacai@kernel.org>
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Cc: Jiaxun Yang <jiaxun.yang@flygoat.com>
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Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
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---
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arch/mips/Kconfig | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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--- a/arch/mips/Kconfig
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+++ b/arch/mips/Kconfig
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@@ -2075,7 +2075,7 @@ config CPU_MIPS32
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config CPU_MIPS64
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bool
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default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R5 || \
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- CPU_MIPS64_R6
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+ CPU_MIPS64_R6 || CPU_LOONGSON64 || CPU_CAVIUM_OCTEON
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#
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# These indicate the revision of the architecture
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