debugger. See <http://kgdb.sourceforge.net/> for more information.
Unless you are intending to debug the kernel, say N here.
+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
+
choice
prompt "Serial Port"
depends on KGDB
config IRQSTACKS
bool "Use separate kernel stacks when processing interrupts"
- depends on PPC64
help
If you say Y here the kernel will use separate kernel stacks
for handling hard and soft interrupts. This can help avoid
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
depends on 44x
help
Select this to enable early debugging for IBM 44x chips via the
- inbuilt serial port.
+ 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"
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 "0xf0000008" if CPM2
+ default "0xf0001ff8" if CPM2
default "0xff002008" if CPM1
help
This specifies the address of the transmit descriptor