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authorMasahiro Yamada <masahiroy@kernel.org>2024-01-28 01:23:09 +0900
committerThomas Bogendoerfer <tsbogend@alpha.franken.de>2024-02-20 13:36:34 +0100
commit5033ad566016bb9c3ea45d62c0a2244a6eb8d610 (patch)
treef8c6804058554c8e97628d374f283c6e17f80888 /arch
parent5b7236c198a30d736a7664e26b09b5e3e8a914f4 (diff)
MIPS: move unselectable entries out of the "CPU type" choice
Move the following entries out of the "CPU type" choice: - LOONGSON3_ENHANCEMENT - CPU_LOONGSON3_WORKAROUNDS - CPU_LOONGSON3_CPUCFG_EMULATION These entries cannot be selected from the choice because they depend on CPU_LOONGSON64, which is also located in the same choice. In fact, Kconfig does not consider them as choice values because they become children of CPU_LOOONGSON64 due to the automatic submenu creation in menu_finalize(). However, it is hard to understand this behavior unless you are familiar with the Kconfig internals. "choice" should contain only selectable entries. Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Diffstat (limited to 'arch')
-rw-r--r--arch/mips/Kconfig76
1 files changed, 38 insertions, 38 deletions
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index aa9b0ac649f6..492d7b900929 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -1328,44 +1328,6 @@ config CPU_LOONGSON64
3B1000, 3B1500, 3A2000, 3A3000 and 3A4000) processors. However, old
Loongson-2E/2F is not covered here and will be removed in future.
-config LOONGSON3_ENHANCEMENT
- bool "New Loongson-3 CPU Enhancements"
- default n
- depends on CPU_LOONGSON64
- help
- New Loongson-3 cores (since Loongson-3A R2, as opposed to Loongson-3A
- R1, Loongson-3B R1 and Loongson-3B R2) has many enhancements, such as
- FTLB, L1-VCache, EI/DI/Wait/Prefetch instruction, DSP/DSPr2 ASE, User
- Local register, Read-Inhibit/Execute-Inhibit, SFB (Store Fill Buffer),
- Fast TLB refill support, etc.
-
- This option enable those enhancements which are not probed at run
- time. If you want a generic kernel to run on all Loongson 3 machines,
- please say 'N' here. If you want a high-performance kernel to run on
- new Loongson-3 machines only, please say 'Y' here.
-
-config CPU_LOONGSON3_WORKAROUNDS
- bool "Loongson-3 LLSC Workarounds"
- default y if SMP
- depends on CPU_LOONGSON64
- help
- Loongson-3 processors have the llsc issues which require workarounds.
- Without workarounds the system may hang unexpectedly.
-
- Say Y, unless you know what you are doing.
-
-config CPU_LOONGSON3_CPUCFG_EMULATION
- bool "Emulate the CPUCFG instruction on older Loongson cores"
- default y
- depends on CPU_LOONGSON64
- help
- Loongson-3A R4 and newer have the CPUCFG instruction available for
- userland to query CPU capabilities, much like CPUID on x86. This
- option provides emulation of the instruction on older Loongson
- cores, back to Loongson-3A1000.
-
- If unsure, please say Y.
-
config CPU_LOONGSON2E
bool "Loongson 2E"
depends on SYS_HAS_CPU_LOONGSON2E
@@ -1703,6 +1665,44 @@ config CPU_BMIPS
endchoice
+config LOONGSON3_ENHANCEMENT
+ bool "New Loongson-3 CPU Enhancements"
+ default n
+ depends on CPU_LOONGSON64
+ help
+ New Loongson-3 cores (since Loongson-3A R2, as opposed to Loongson-3A
+ R1, Loongson-3B R1 and Loongson-3B R2) has many enhancements, such as
+ FTLB, L1-VCache, EI/DI/Wait/Prefetch instruction, DSP/DSPr2 ASE, User
+ Local register, Read-Inhibit/Execute-Inhibit, SFB (Store Fill Buffer),
+ Fast TLB refill support, etc.
+
+ This option enable those enhancements which are not probed at run
+ time. If you want a generic kernel to run on all Loongson 3 machines,
+ please say 'N' here. If you want a high-performance kernel to run on
+ new Loongson-3 machines only, please say 'Y' here.
+
+config CPU_LOONGSON3_WORKAROUNDS
+ bool "Loongson-3 LLSC Workarounds"
+ default y if SMP
+ depends on CPU_LOONGSON64
+ help
+ Loongson-3 processors have the llsc issues which require workarounds.
+ Without workarounds the system may hang unexpectedly.
+
+ Say Y, unless you know what you are doing.
+
+config CPU_LOONGSON3_CPUCFG_EMULATION
+ bool "Emulate the CPUCFG instruction on older Loongson cores"
+ default y
+ depends on CPU_LOONGSON64
+ help
+ Loongson-3A R4 and newer have the CPUCFG instruction available for
+ userland to query CPU capabilities, much like CPUID on x86. This
+ option provides emulation of the instruction on older Loongson
+ cores, back to Loongson-3A1000.
+
+ If unsure, please say Y.
+
config CPU_MIPS32_3_5_FEATURES
bool "MIPS32 Release 3.5 Features"
depends on SYS_HAS_CPU_MIPS32_R3_5