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Diffstat (limited to 'arch/mips/Kconfig.debug')
| -rw-r--r-- | arch/mips/Kconfig.debug | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/arch/mips/Kconfig.debug b/arch/mips/Kconfig.debug index e250524021ac..13d796547ebd 100644 --- a/arch/mips/Kconfig.debug +++ b/arch/mips/Kconfig.debug @@ -113,4 +113,40 @@ config SPINLOCK_TEST help Add several files to the debugfs to test spinlock speed. +if CPU_MIPSR6 + +choice + prompt "Compact branch policy" + default MIPS_COMPACT_BRANCHES_OPTIMAL + +config MIPS_COMPACT_BRANCHES_NEVER + bool "Never (force delay slot branches)" + help + Pass the -mcompact-branches=never flag to the compiler in order to + force it to always emit branches with delay slots, and make no use + of the compact branch instructions introduced by MIPSr6. This is + useful if you suspect there may be an issue with compact branches in + either the compiler or the CPU. + +config MIPS_COMPACT_BRANCHES_OPTIMAL + bool "Optimal (use where beneficial)" + help + Pass the -mcompact-branches=optimal flag to the compiler in order for + it to make use of compact branch instructions where it deems them + beneficial, and use branches with delay slots elsewhere. This is the + default compiler behaviour, and should be used unless you have a + reason to choose otherwise. + +config MIPS_COMPACT_BRANCHES_ALWAYS + bool "Always (force compact branches)" + help + Pass the -mcompact-branches=always flag to the compiler in order to + force it to always emit compact branches, making no use of branch + instructions with delay slots. This can result in more compact code + which may be beneficial in some scenarios. + +endchoice + +endif # CPU_MIPSR6 + endmenu |