diff options
Diffstat (limited to 'arch/mips/Kconfig.debug')
| -rw-r--r-- | arch/mips/Kconfig.debug | 104 |
1 files changed, 74 insertions, 30 deletions
diff --git a/arch/mips/Kconfig.debug b/arch/mips/Kconfig.debug index 37871f0de15e..f4ae7900fcd3 100644 --- a/arch/mips/Kconfig.debug +++ b/arch/mips/Kconfig.debug @@ -1,10 +1,4 @@ -menu "Kernel hacking" - -config TRACE_IRQFLAGS_SUPPORT - bool - default y - -source "lib/Kconfig.debug" +# SPDX-License-Identifier: GPL-2.0 config EARLY_PRINTK bool "Early printk" if EXPERT @@ -20,9 +14,20 @@ config EARLY_PRINTK doesn't cooperate with an X server. You should normally say N here, unless you want to debug such a crash. +config EARLY_PRINTK_8250 + bool + depends on EARLY_PRINTK && USE_GENERIC_EARLY_PRINTK_8250 + default y + help + "8250/16550 and compatible serial early printk driver" + If you say Y here, it will be possible to use a 8250/16550 serial + port as the boot console. + +config USE_GENERIC_EARLY_PRINTK_8250 + bool + config CMDLINE_BOOL bool "Built-in kernel command line" - default n help For most systems, it is firmware or second stage bootloader that by default specifies the kernel command line options. However, @@ -43,7 +48,6 @@ config CMDLINE_BOOL config CMDLINE string "Default kernel command string" depends on CMDLINE_BOOL - default "" help On some platforms, there is currently no way for the boot loader to pass arguments to the kernel. For these platforms, and for the cases @@ -58,7 +62,6 @@ config CMDLINE config CMDLINE_OVERRIDE bool "Built-in command line overrides firmware arguments" - default n depends on CMDLINE_BOOL help By setting this option to 'Y' you will have your kernel ignore @@ -67,32 +70,15 @@ config CMDLINE_OVERRIDE Normally, you will choose 'N' here. -config SMTC_IDLE_HOOK_DEBUG - bool "Enable additional debug checks before going into CPU idle loop" - depends on DEBUG_KERNEL && MIPS_MT_SMTC - help - This option enables Enable additional debug checks before going into - CPU idle loop. For details on these checks, see - arch/mips/kernel/smtc.c. This debugging option result in significant - overhead so should be disabled in production kernels. - config SB1XXX_CORELIS bool "Corelis Debugger" depends on SIBYTE_SB1xxx_SOC - select DEBUG_INFO + select DEBUG_KERNEL if !COMPILE_TEST + select DEBUG_INFO if !COMPILE_TEST help 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 @@ -112,6 +98,14 @@ config DEBUG_ZBOOT to reduce the kernel image size and speed up the booting procedure a little. +config ZBOOT_INGENIC_UART + int "UART to use for compressed kernel debugging" + depends on DEBUG_ZBOOT && MACH_INGENIC_SOC + default 0 + range 0 4 + help + Specify the UART that should be used for compressed kernel debugging. + config SPINLOCK_TEST bool "Enable spinlock timing tests in debugfs" depends on DEBUG_FS @@ -119,4 +113,54 @@ config SPINLOCK_TEST help Add several files to the debugfs to test spinlock speed. -endmenu +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 + 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_BOOL + +config MIPS_CPS_NS16550 + def_bool MIPS_CPS_NS16550_BASE != 0 + +config MIPS_CPS_NS16550_BASE + hex "UART Base Address" + default 0x1b0003f8 if MIPS_MALTA + default 0 + help + The base address of the ns16550 compatible UART on which to output + debug information from the early stages of core startup. + + This is only used if non-zero. + +config MIPS_CPS_NS16550_SHIFT + int "UART Register Shift" + default 0 + 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. + +config MIPS_CPS_NS16550_WIDTH + int "UART Register Width" + default 1 + help + ns16550 registers width. UART registers IO access methods will be + selected in accordance with this parameter. By setting it to 1, 2 or + 4 UART registers will be accessed by means of lb/sb, lh/sh or lw/sw + instructions respectively. Any value not from that set activates + lb/sb instructions. + +endif # MIPS_CPS_NS16550_BOOL |