diff options
Diffstat (limited to 'kernel/arch/mips/Kconfig.debug')
| -rw-r--r-- | kernel/arch/mips/Kconfig.debug | 81 |
1 files changed, 72 insertions, 9 deletions
diff --git a/kernel/arch/mips/Kconfig.debug b/kernel/arch/mips/Kconfig.debug index 3a2b775e8..f0e314ceb 100644 --- a/kernel/arch/mips/Kconfig.debug +++ b/kernel/arch/mips/Kconfig.debug @@ -87,15 +87,6 @@ config SB1XXX_CORELIS Select compile flags that produce code that can be processed by the Corelis mksym utility and UDB Emulator. -config RUNTIME_DEBUG - bool "Enable run-time debugging" - depends on DEBUG_KERNEL - help - If you say Y here, some debugging macros will do run-time checking. - If you say N here, those macros will mostly turn to no-ops. See - arch/mips/include/asm/debug.h for debugging macros. - If unsure, say N. - config DEBUG_ZBOOT bool "Enable compressed kernel support debugging" depends on DEBUG_KERNEL && SYS_SUPPORTS_ZBOOT @@ -122,4 +113,76 @@ 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 + +config SCACHE_DEBUGFS + bool "L2 cache debugfs entries" + depends on DEBUG_FS + help + Enable this to allow parts of the L2 cache configuration, such as + whether or not prefetching is enabled, to be exposed to userland + via debugfs. + + If unsure, say N. + +menuconfig MIPS_CPS_NS16550 + bool "CPS SMP NS16550 UART output" + depends on MIPS_CPS + help + Output debug information via an ns16550 compatible UART if exceptions + occur early in the boot process of a secondary core. + +if MIPS_CPS_NS16550 + +config MIPS_CPS_NS16550_BASE + hex "UART Base Address" + default 0x1b0003f8 if MIPS_MALTA + help + The base address of the ns16550 compatible UART on which to output + debug information from the early stages of core startup. + +config MIPS_CPS_NS16550_SHIFT + int "UART Register Shift" + default 0 if MIPS_MALTA + help + The number of bits to shift ns16550 register indices by in order to + form their addresses. That is, log base 2 of the span between + adjacent ns16550 registers in the system. + +endif # MIPS_CPS_NS16550 + endmenu |