config DEBUG_PAGEALLOC
bool "Debug page memory allocations"
- depends on DEBUG_KERNEL && !SOFTWARE_SUSPEND
+ depends on DEBUG_KERNEL && !HIBERNATION
help
Unmap pages from the kernel linear mapping after free_pages().
This results in a large slowdown, but helps to find certain types
depends on PPC_PSERIES && DEBUG_FS
help
Adds code to keep track of the number of hypervisor calls made and
- the amount of time spent in hypervisor callsr. Wall time spent in
+ 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
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 && PPC_MERGE
+ 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 && PPC32
config BOOTX_TEXT
bool "Support for early boot text console (BootX or OpenFirmware only)"
- depends PPC_OF
+ depends PPC_OF && PPC_MULTIPLATFORM
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
-
config PPC_EARLY_DEBUG
bool "Early debugging (dangerous)"
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
+ select PPC_UDBG_16550
+ help
+ Select this to enable early debugging for IBM 44x chips via the
+ inbuilt serial port.
+
+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.
+
endchoice
+config PPC_EARLY_DEBUG_44x_PHYSLOW
+ hex "Low 32 bits of early debug UART physical address"
+ depends PPC_EARLY_DEBUG_44x
+ default "0x40000200"
+
+config PPC_EARLY_DEBUG_44x_PHYSHIGH
+ hex "EPRN of early debug UART physical address"
+ depends PPC_EARLY_DEBUG_44x
+ default "0x1"
+
+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 "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