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| author | Jason A. Donenfeld <Jason@zx2c4.com> | 2021-02-27 13:41:25 +0100 |
|---|---|---|
| committer | David Bauer <mail@david-bauer.net> | 2021-02-27 19:14:27 +0100 |
| commit | 2a27f6f90a430342cdbe84806e8b10acff446a2d (patch) | |
| tree | 19a1fe06294ac5713d47b7a78400a79bfe1a2d74 /target | |
| parent | a1735fe73ce72e15fc26ca3cbd4a4fb3caba933a (diff) | |
| download | upstream-2a27f6f90a430342cdbe84806e8b10acff446a2d.tar.gz upstream-2a27f6f90a430342cdbe84806e8b10acff446a2d.tar.bz2 upstream-2a27f6f90a430342cdbe84806e8b10acff446a2d.zip | |
kernel: backport pending fix to select CPU_MIPS64
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>
Diffstat (limited to 'target')
2 files changed, 73 insertions, 0 deletions
diff --git a/target/linux/generic/pending-5.10/103-MIPS-select-CPU_MIPS64-for-remaining-MIPS64-CPUs.patch b/target/linux/generic/pending-5.10/103-MIPS-select-CPU_MIPS64-for-remaining-MIPS64-CPUs.patch new file mode 100644 index 0000000000..cf79e9a449 --- /dev/null +++ b/target/linux/generic/pending-5.10/103-MIPS-select-CPU_MIPS64-for-remaining-MIPS64-CPUs.patch @@ -0,0 +1,36 @@ +From 6523061868212473f63812a0c477a161742bed42 Mon Sep 17 00:00:00 2001 +From: "Jason A. Donenfeld" <Jason@zx2c4.com> +Date: Sat, 27 Feb 2021 13:20:24 +0100 +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@alpha.franken.de> +Cc: Ralf Baechle <ralf@linux-mips.org> +Cc: George Cherian <gcherian@marvell.com> +Cc: Huacai Chen <chenhuacai@kernel.org> +Cc: Jiaxun Yang <jiaxun.yang@flygoat.com> +Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com> +--- + arch/mips/Kconfig | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +--- a/arch/mips/Kconfig ++++ b/arch/mips/Kconfig +@@ -2075,7 +2075,7 @@ 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 diff --git a/target/linux/generic/pending-5.4/103-MIPS-select-CPU_MIPS64-for-remaining-MIPS64-CPUs.patch b/target/linux/generic/pending-5.4/103-MIPS-select-CPU_MIPS64-for-remaining-MIPS64-CPUs.patch new file mode 100644 index 0000000000..3b04316692 --- /dev/null +++ b/target/linux/generic/pending-5.4/103-MIPS-select-CPU_MIPS64-for-remaining-MIPS64-CPUs.patch @@ -0,0 +1,37 @@ +From 31ca877744d95713e4925de542e1c686ab08a542 Mon Sep 17 00:00:00 2001 +From: "Jason A. Donenfeld" <Jason@zx2c4.com> +Date: Sat, 27 Feb 2021 13:20:24 +0100 +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@alpha.franken.de> +Cc: Ralf Baechle <ralf@linux-mips.org> +Cc: George Cherian <gcherian@marvell.com> +Cc: Huacai Chen <chenhuacai@kernel.org> +Cc: Jiaxun Yang <jiaxun.yang@flygoat.com> +Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com> +--- + arch/mips/Kconfig | 3 ++- + 1 file changed, 2 insertions(+), 1 deletion(-) + +--- a/arch/mips/Kconfig ++++ b/arch/mips/Kconfig +@@ -2036,7 +2036,8 @@ config CPU_MIPS32 + + config CPU_MIPS64 + bool +- default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R6 ++ default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R6 || \ ++ CPU_LOONGSON64 || CPU_CAVIUM_OCTEON + + # + # These indicate the revision of the architecture |