source "lib/Kconfig.debug"
-config KGDB
- bool "Include kgdb kernel debugger"
- depends on DEBUG_KERNEL && (BROKEN || PPC_GEN550 || 4xx)
- select DEBUG_INFO
+config PPC_DISABLE_WERROR
+ bool "Don't build arch/powerpc code with -Werror"
+ default n
help
- Include in-kernel hooks for kgdb, the Linux kernel source level
- debugger. See <http://kgdb.sourceforge.net/> for more information.
- Unless you are intending to debug the kernel, say N here.
+ This option tells the compiler NOT to build the code under
+ arch/powerpc with the -Werror flag (which means warnings
+ are treated as errors).
-choice
- prompt "Serial Port"
- depends on KGDB
- default KGDB_TTYS1
+ Only enable this if you are hitting a build failure in the
+ arch/powerpc code caused by a warning, and you don't feel
+ inclined to fix it.
+
+config PPC_WERROR
+ bool
+ depends on !PPC_DISABLE_WERROR
+ default y
-config KGDB_TTYS0
- bool "ttyS0"
+config PRINT_STACK_DEPTH
+ int "Stack depth to print" if DEBUG_KERNEL
+ default 64
+ help
+ This option allows you to set the stack depth that the kernel
+ prints in stack traces. This can be useful if your display is
+ too small and stack traces cause important information to
+ scroll off the screen.
+
+config DEBUG_STACKOVERFLOW
+ bool "Check for stack overflows"
+ depends on DEBUG_KERNEL
+ help
+ This option will cause messages to be printed if free stack space
+ drops below a certain limit.
-config KGDB_TTYS1
- bool "ttyS1"
+config DEBUG_STACK_USAGE
+ bool "Stack utilization instrumentation"
+ depends on DEBUG_KERNEL
+ help
+ Enables the display of the minimum amount of free stack which each
+ task has ever had available in the sysrq-T and sysrq-P debug output.
-config KGDB_TTYS2
- bool "ttyS2"
+ This option will slow down process creation somewhat.
-config KGDB_TTYS3
- bool "ttyS3"
+config HCALL_STATS
+ bool "Hypervisor call instrumentation"
+ depends on PPC_PSERIES && DEBUG_FS && TRACEPOINTS
+ help
+ Adds code to keep track of the number of hypervisor calls made and
+ the amount of time spent in hypervisor calls. Wall time spent in
+ each call is always calculated, and if available CPU cycles spent
+ are also calculated. A directory named hcall_inst is added at the
+ root of the debugfs filesystem. Within the hcall_inst directory
+ are files that contain CPU specific call statistics.
-endchoice
+ This option will add a small amount of overhead to all hypervisor
+ calls.
-config KGDB_CONSOLE
- bool "Enable serial console thru kgdb port"
- depends on KGDB && 8xx || CPM2
+config PPC_EMULATED_STATS
+ bool "Emulated instructions tracking"
+ depends on DEBUG_FS
help
- If you enable this, all serial console messages will be sent
- over the gdb stub.
- If unsure, say N.
+ Adds code to keep track of the number of instructions that are
+ emulated by the in-kernel emulator. Counters for the various classes
+ of emulated instructions are available under
+ powerpc/emulated_instructions/ in the root of the debugfs file
+ system. Optionally (controlled by
+ powerpc/emulated_instructions/do_warn in debugfs), rate-limited
+ warnings can be printed to the console when instructions are
+ emulated.
+
+config CODE_PATCHING_SELFTEST
+ bool "Run self-tests of the code-patching code."
+ depends on DEBUG_KERNEL
+ default n
+
+config FTR_FIXUP_SELFTEST
+ bool "Run self-tests of the feature-fixup code."
+ depends on DEBUG_KERNEL
+ default n
+
+config MSI_BITMAP_SELFTEST
+ bool "Run self-tests of the MSI bitmap code."
+ depends on DEBUG_KERNEL
+ default n
config XMON
bool "Include xmon kernel debugger"
help
Include in-kernel hooks for the xmon kernel monitor/debugger.
Unless you are intending to debug the kernel, say N here.
+ Make sure to enable also CONFIG_BOOTX_TEXT on Macs. Otherwise
+ nothing will appear on the screen (xmon writes directly to the
+ framebuffer memory).
+ The cmdline option 'xmon' or 'xmon=early' will drop into xmon
+ very early during boot. 'xmon=on' will just enable the xmon
+ debugger hooks. 'xmon=off' will disable the debugger hooks
+ if CONFIG_XMON_DEFAULT is set.
+ xmon will print a backtrace on the very first invocation.
+ 'xmon=nobt' will disable this autobacktrace.
+
+config XMON_DEFAULT
+ bool "Enable xmon by default"
+ depends on XMON
+ help
+ xmon is normally disabled unless booted with 'xmon=on'.
+ Use 'xmon=off' to disable xmon init during runtime.
+
+config XMON_DISASSEMBLY
+ bool "Include disassembly support in xmon"
+ depends on XMON
+ default y
+ help
+ Include support for disassembling in xmon. You probably want
+ to say Y here, unless you're building for a memory-constrained
+ system.
+
+config DEBUGGER
+ bool
+ depends on KGDB || XMON
+ default y
+
+config IRQSTACKS
+ bool "Use separate kernel stacks when processing interrupts"
+ help
+ If you say Y here the kernel will use separate kernel stacks
+ for handling hard and soft interrupts. This can help avoid
+ overflowing the process kernel stacks.
+
+config VIRQ_DEBUG
+ bool "Expose hardware/virtual IRQ mapping via debugfs"
+ depends on DEBUG_FS
+ help
+ This option will show the mapping relationship between hardware irq
+ numbers and virtual irq numbers. The mapping is exposed via debugfs
+ in the file powerpc/virq_mapping.
+
+ If you don't know what this means you don't need it.
config BDI_SWITCH
bool "Include BDI-2000 user context switcher"
- depends on DEBUG_KERNEL
+ depends on DEBUG_KERNEL && PPC32
help
Include in-kernel support for the Abatron BDI2000 debugger.
Unless you are intending to debug the kernel with one of these
config BOOTX_TEXT
bool "Support for early boot text console (BootX or OpenFirmware only)"
- depends PPC_OF
+ depends on PPC_OF && PPC_BOOK3S
help
Say Y here to see progress messages from the boot firmware in text
mode. Requires either BootX or Open Firmware.
-config SERIAL_TEXT_DEBUG
- bool "Support for early boot texts over serial port"
- depends on 4xx || LOPEC || MV64X60 || PPLUS || PRPMC800 || \
- PPC_GEN550 || PPC_MPC52xx
+config PPC_EARLY_DEBUG
+ bool "Early debugging (dangerous)"
+ # PPC_EARLY_DEBUG on 440 leaves AS=1 mappings above the TLB high water
+ # mark, which doesn't work with current 440 KVM.
+ depends on !KVM
+ help
+ Say Y to enable some early debugging facilities that may be available
+ for your processor/board combination. Those facilities are hacks
+ intended to debug problems early during boot, this should not be
+ enabled in a production kernel.
+ Note that enabling this will also cause the kernel default log level
+ to be pushed to max automatically very early during boot
-config PPC_OCP
- bool
- depends on IBM_OCP || XILINX_OCP
- default y
+choice
+ prompt "Early debugging console"
+ depends on PPC_EARLY_DEBUG
+ help
+ Use the selected console for early debugging. Careful, if you
+ enable debugging for the wrong type of machine your kernel
+ _will not boot_.
+
+config PPC_EARLY_DEBUG_LPAR
+ bool "LPAR HV Console"
+ depends on PPC_PSERIES
+ help
+ Select this to enable early debugging for a machine with a HVC
+ console on vterm 0.
+
+config PPC_EARLY_DEBUG_G5
+ bool "Apple G5"
+ depends on PPC_PMAC64
+ help
+ Select this to enable early debugging for Apple G5 machines.
+
+config PPC_EARLY_DEBUG_RTAS_PANEL
+ bool "RTAS Panel"
+ depends on PPC_RTAS
+ help
+ Select this to enable early debugging via the RTAS panel.
+
+config PPC_EARLY_DEBUG_RTAS_CONSOLE
+ bool "RTAS Console"
+ depends on PPC_RTAS
+ select UDBG_RTAS_CONSOLE
+ help
+ Select this to enable early debugging via the RTAS console.
+
+config PPC_EARLY_DEBUG_MAPLE
+ bool "Maple real mode"
+ depends on PPC_MAPLE
+ help
+ Select this to enable early debugging for Maple.
+
+config PPC_EARLY_DEBUG_ISERIES
+ bool "iSeries HV Console"
+ depends on PPC_ISERIES
+ help
+ Select this to enable early debugging for legacy iSeries. You need
+ to hit "Ctrl-x Ctrl-x" to see the messages on the console.
+
+config PPC_EARLY_DEBUG_PAS_REALMODE
+ bool "PA Semi real mode"
+ depends on PPC_PASEMI
+ help
+ Select this to enable early debugging for PA Semi.
+ Output will be on UART0.
+
+config PPC_EARLY_DEBUG_BEAT
+ bool "Beat HV Console"
+ depends on PPC_CELLEB
+ select PPC_UDBG_BEAT
+ help
+ Select this to enable early debugging for Celleb with Beat.
+
+config PPC_EARLY_DEBUG_44x
+ bool "Early serial debugging for IBM/AMCC 44x CPUs"
+ depends on 44x
+ help
+ Select this to enable early debugging for IBM 44x chips via the
+ inbuilt serial port. If you enable this, ensure you set
+ PPC_EARLY_DEBUG_44x_PHYSLOW below to suit your target board.
+
+config PPC_EARLY_DEBUG_40x
+ bool "Early serial debugging for IBM/AMCC 40x CPUs"
+ depends on 40x
+ help
+ Select this to enable early debugging for IBM 40x chips via the
+ inbuilt serial port. This works on chips with a 16550 compatible
+ UART. Xilinx chips with uartlite cannot use this option.
+
+config PPC_EARLY_DEBUG_CPM
+ bool "Early serial debugging for Freescale CPM-based serial ports"
+ depends on SERIAL_CPM
+ select PIN_TLB if PPC_8xx
+ help
+ Select this to enable early debugging for Freescale chips
+ using a CPM-based serial port. This assumes that the bootwrapper
+ has run, and set up the CPM in a particular way.
+
+config PPC_EARLY_DEBUG_USBGECKO
+ bool "Early debugging through the USB Gecko adapter"
+ depends on GAMECUBE_COMMON
+ select USBGECKO_UDBG
+ help
+ Select this to enable early debugging for Nintendo GameCube/Wii
+ consoles via an external USB Gecko adapter.
+
+endchoice
+
+config PPC_EARLY_DEBUG_44x_PHYSLOW
+ hex "Low 32 bits of early debug UART physical address"
+ depends on PPC_EARLY_DEBUG_44x
+ default "0x40000200"
+ help
+ You probably want 0x40000200 for ebony boards and
+ 0x40000300 for taishan
+
+config PPC_EARLY_DEBUG_44x_PHYSHIGH
+ hex "EPRN of early debug UART physical address"
+ depends on PPC_EARLY_DEBUG_44x
+ default "0x1"
+
+config PPC_EARLY_DEBUG_40x_PHYSADDR
+ hex "Early debug UART physical address"
+ depends on PPC_EARLY_DEBUG_40x
+ default "0xef600300"
+
+config PPC_EARLY_DEBUG_CPM_ADDR
+ hex "CPM UART early debug transmit descriptor address"
+ depends on PPC_EARLY_DEBUG_CPM
+ default "0xfa202008" if PPC_EP88XC
+ default "0xf0001ff8" if CPM2
+ default "0xff002008" if CPM1
+ help
+ This specifies the address of the transmit descriptor
+ used for early debug output. Because it is needed before
+ platform probing is done, all platforms selected must
+ share the same address.
endmenu
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff