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377 lines
11 KiB
377 lines
11 KiB
# SPDX-License-Identifier: GPL-2.0 |
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config PPC_DISABLE_WERROR |
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bool "Don't build arch/powerpc code with -Werror" |
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help |
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This option tells the compiler NOT to build the code under |
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arch/powerpc with the -Werror flag (which means warnings |
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are treated as errors). |
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Only enable this if you are hitting a build failure in the |
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arch/powerpc code caused by a warning, and you don't feel |
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inclined to fix it. |
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config PPC_WERROR |
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bool |
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depends on !PPC_DISABLE_WERROR |
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default y |
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config PRINT_STACK_DEPTH |
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int "Stack depth to print" if DEBUG_KERNEL |
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default 64 |
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help |
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This option allows you to set the stack depth that the kernel |
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prints in stack traces. This can be useful if your display is |
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too small and stack traces cause important information to |
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scroll off the screen. |
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config HCALL_STATS |
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bool "Hypervisor call instrumentation" |
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depends on PPC_PSERIES && DEBUG_FS && TRACEPOINTS |
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help |
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Adds code to keep track of the number of hypervisor calls made and |
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the amount of time spent in hypervisor calls. Wall time spent in |
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each call is always calculated, and if available CPU cycles spent |
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are also calculated. A directory named hcall_inst is added at the |
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root of the debugfs filesystem. Within the hcall_inst directory |
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are files that contain CPU specific call statistics. |
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This option will add a small amount of overhead to all hypervisor |
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calls. |
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config PPC_EMULATED_STATS |
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bool "Emulated instructions tracking" |
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depends on DEBUG_FS |
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help |
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Adds code to keep track of the number of instructions that are |
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emulated by the in-kernel emulator. Counters for the various classes |
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of emulated instructions are available under |
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powerpc/emulated_instructions/ in the root of the debugfs file |
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system. Optionally (controlled by |
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powerpc/emulated_instructions/do_warn in debugfs), rate-limited |
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warnings can be printed to the console when instructions are |
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emulated. |
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config CODE_PATCHING_SELFTEST |
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bool "Run self-tests of the code-patching code" |
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depends on DEBUG_KERNEL |
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config JUMP_LABEL_FEATURE_CHECKS |
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bool "Enable use of jump label for cpu/mmu_has_feature()" |
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depends on JUMP_LABEL |
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default y |
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help |
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Selecting this options enables use of jump labels for some internal |
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feature checks. This should generate more optimal code for those |
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checks. |
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config JUMP_LABEL_FEATURE_CHECK_DEBUG |
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bool "Do extra check on feature fixup calls" |
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depends on DEBUG_KERNEL && JUMP_LABEL_FEATURE_CHECKS |
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help |
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This tries to catch incorrect usage of cpu_has_feature() and |
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mmu_has_feature() in the code. |
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If you don't know what this means, say N. |
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config FTR_FIXUP_SELFTEST |
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bool "Run self-tests of the feature-fixup code" |
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depends on DEBUG_KERNEL |
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config MSI_BITMAP_SELFTEST |
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bool "Run self-tests of the MSI bitmap code" |
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depends on DEBUG_KERNEL |
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config PPC_IRQ_SOFT_MASK_DEBUG |
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bool "Include extra checks for powerpc irq soft masking" |
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depends on PPC64 |
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config PPC_RFI_SRR_DEBUG |
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bool "Include extra checks for RFI SRR register validity" |
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depends on PPC_BOOK3S_64 |
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config XMON |
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bool "Include xmon kernel debugger" |
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depends on DEBUG_KERNEL |
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select CONSOLE_POLL if SERIAL_CPM_CONSOLE |
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help |
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Include in-kernel hooks for the xmon kernel monitor/debugger. |
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Unless you are intending to debug the kernel, say N here. |
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Make sure to enable also CONFIG_BOOTX_TEXT on Macs. Otherwise |
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nothing will appear on the screen (xmon writes directly to the |
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framebuffer memory). |
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The cmdline option 'xmon' or 'xmon=early' will drop into xmon |
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very early during boot. 'xmon=on' will just enable the xmon |
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debugger hooks. 'xmon=off' will disable the debugger hooks |
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if CONFIG_XMON_DEFAULT is set. |
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xmon will print a backtrace on the very first invocation. |
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'xmon=nobt' will disable this autobacktrace. |
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config XMON_DEFAULT |
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bool "Enable xmon by default" |
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depends on XMON |
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help |
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xmon is normally disabled unless booted with 'xmon=on'. |
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Use 'xmon=off' to disable xmon init during runtime. |
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config XMON_DISASSEMBLY |
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bool "Include disassembly support in xmon" |
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depends on XMON |
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default y |
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help |
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Include support for disassembling in xmon. You probably want |
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to say Y here, unless you're building for a memory-constrained |
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system. |
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config XMON_DEFAULT_RO_MODE |
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bool "Restrict xmon to read-only operations by default" |
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depends on XMON |
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default y |
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help |
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Operate xmon in read-only mode. The cmdline options 'xmon=rw' and |
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'xmon=ro' override this default. |
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config DEBUGGER |
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bool |
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depends on KGDB || XMON |
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default y |
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config BDI_SWITCH |
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bool "Include BDI-2000 user context switcher" |
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depends on DEBUG_KERNEL && PPC32 |
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help |
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Include in-kernel support for the Abatron BDI2000 debugger. |
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Unless you are intending to debug the kernel with one of these |
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machines, say N here. |
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config BOOTX_TEXT |
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bool "Support for early boot text console (BootX or OpenFirmware only)" |
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depends on PPC_BOOK3S |
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help |
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Say Y here to see progress messages from the boot firmware in text |
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mode. Requires either BootX or Open Firmware. |
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config PPC_EARLY_DEBUG |
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bool "Early debugging (dangerous)" |
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help |
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Say Y to enable some early debugging facilities that may be available |
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for your processor/board combination. Those facilities are hacks |
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intended to debug problems early during boot, this should not be |
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enabled in a production kernel. |
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Note that enabling this will also cause the kernel default log level |
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to be pushed to max automatically very early during boot |
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choice |
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prompt "Early debugging console" |
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depends on PPC_EARLY_DEBUG |
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help |
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Use the selected console for early debugging. Careful, if you |
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enable debugging for the wrong type of machine your kernel |
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_will not boot_. |
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config PPC_EARLY_DEBUG_BOOTX |
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bool "BootX or OpenFirmware" |
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depends on BOOTX_TEXT |
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help |
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Select this to enable early debugging for a machine using BootX |
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or OpenFirmware. |
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config PPC_EARLY_DEBUG_LPAR |
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bool "LPAR HV Console" |
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depends on PPC_PSERIES && HVC_CONSOLE |
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help |
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Select this to enable early debugging for a machine with a HVC |
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console on vterm 0. |
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config PPC_EARLY_DEBUG_LPAR_HVSI |
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bool "LPAR HVSI Console" |
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depends on PPC_PSERIES && HVC_CONSOLE |
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help |
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Select this to enable early debugging for a machine with a HVSI |
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console on a specified vterm. |
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config PPC_EARLY_DEBUG_G5 |
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bool "Apple G5" |
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depends on PPC_PMAC64 |
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help |
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Select this to enable early debugging for Apple G5 machines. |
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config PPC_EARLY_DEBUG_RTAS_PANEL |
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bool "RTAS Panel" |
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depends on PPC_RTAS |
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help |
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Select this to enable early debugging via the RTAS panel. |
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config PPC_EARLY_DEBUG_RTAS_CONSOLE |
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bool "RTAS Console" |
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depends on PPC_RTAS |
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select UDBG_RTAS_CONSOLE |
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help |
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Select this to enable early debugging via the RTAS console. |
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config PPC_EARLY_DEBUG_MAPLE |
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bool "Maple real mode" |
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depends on PPC_MAPLE |
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help |
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Select this to enable early debugging for Maple. |
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config PPC_EARLY_DEBUG_PAS_REALMODE |
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bool "PA Semi real mode" |
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depends on PPC_PASEMI |
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help |
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Select this to enable early debugging for PA Semi. |
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Output will be on UART0. |
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config PPC_EARLY_DEBUG_44x |
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bool "Early serial debugging for IBM/AMCC 44x CPUs" |
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depends on 44x |
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help |
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Select this to enable early debugging for IBM 44x chips via the |
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inbuilt serial port. If you enable this, ensure you set |
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PPC_EARLY_DEBUG_44x_PHYSLOW below to suit your target board. |
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config PPC_EARLY_DEBUG_40x |
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bool "Early serial debugging for IBM/AMCC 40x CPUs" |
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depends on 40x |
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help |
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Select this to enable early debugging for IBM 40x chips via the |
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inbuilt serial port. This works on chips with a 16550 compatible |
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UART. |
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config PPC_EARLY_DEBUG_CPM |
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bool "Early serial debugging for Freescale CPM-based serial ports" |
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depends on SERIAL_CPM |
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help |
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Select this to enable early debugging for Freescale chips |
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using a CPM-based serial port. This assumes that the bootwrapper |
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has run, and set up the CPM in a particular way. |
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config PPC_EARLY_DEBUG_USBGECKO |
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bool "Early debugging through the USB Gecko adapter" |
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depends on GAMECUBE_COMMON |
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select USBGECKO_UDBG |
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help |
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Select this to enable early debugging for Nintendo GameCube/Wii |
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consoles via an external USB Gecko adapter. |
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config PPC_EARLY_DEBUG_PS3GELIC |
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bool "Early debugging through the PS3 Ethernet port" |
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depends on PPC_PS3 |
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select PS3GELIC_UDBG |
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help |
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Select this to enable early debugging for the PlayStation3 via |
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UDP broadcasts sent out through the Ethernet port. |
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config PPC_EARLY_DEBUG_OPAL_RAW |
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bool "OPAL raw console" |
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depends on HVC_OPAL |
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help |
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Select this to enable early debugging for the PowerNV platform |
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using a "raw" console |
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config PPC_EARLY_DEBUG_OPAL_HVSI |
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bool "OPAL hvsi console" |
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depends on HVC_OPAL |
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help |
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Select this to enable early debugging for the PowerNV platform |
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using an "hvsi" console |
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config PPC_EARLY_DEBUG_MEMCONS |
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bool "In memory console" |
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help |
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Select this to enable early debugging using an in memory console. |
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This console provides input and output buffers stored within the |
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kernel BSS and should be safe to select on any system. A debugger |
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can then be used to read kernel output or send input to the console. |
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endchoice |
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config PPC_MEMCONS_OUTPUT_SIZE |
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int "In memory console output buffer size" |
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depends on PPC_EARLY_DEBUG_MEMCONS |
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default 4096 |
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help |
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Selects the size of the output buffer (in bytes) of the in memory |
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console. |
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config PPC_MEMCONS_INPUT_SIZE |
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int "In memory console input buffer size" |
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depends on PPC_EARLY_DEBUG_MEMCONS |
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default 128 |
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help |
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Selects the size of the input buffer (in bytes) of the in memory |
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console. |
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config PPC_EARLY_DEBUG_OPAL |
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def_bool y |
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depends on PPC_EARLY_DEBUG_OPAL_RAW || PPC_EARLY_DEBUG_OPAL_HVSI |
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config PPC_EARLY_DEBUG_HVSI_VTERMNO |
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hex "vterm number to use with early debug HVSI" |
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depends on PPC_EARLY_DEBUG_LPAR_HVSI |
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default "0x30000000" |
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help |
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You probably want 0x30000000 for your first serial port and |
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0x30000001 for your second one |
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config PPC_EARLY_DEBUG_OPAL_VTERMNO |
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hex "vterm number to use with OPAL early debug" |
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depends on PPC_EARLY_DEBUG_OPAL |
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default "0" |
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help |
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This correspond to which /dev/hvcN you want to use for early |
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debug. |
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On OPAL v2, this will be 0 for network console and 1 or 2 for |
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the machine built-in serial ports. |
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config PPC_EARLY_DEBUG_44x_PHYSLOW |
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hex "Low 32 bits of early debug UART physical address" |
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depends on PPC_EARLY_DEBUG_44x |
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default "0x40000200" |
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help |
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You probably want 0x40000200 for ebony boards and |
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0x40000300 for taishan |
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config PPC_EARLY_DEBUG_44x_PHYSHIGH |
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hex "EPRN of early debug UART physical address" |
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depends on PPC_EARLY_DEBUG_44x |
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default "0x1" |
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config PPC_EARLY_DEBUG_40x_PHYSADDR |
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hex "Early debug UART physical address" |
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depends on PPC_EARLY_DEBUG_40x |
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default "0xef600300" |
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config PPC_EARLY_DEBUG_CPM_ADDR |
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hex "CPM UART early debug transmit descriptor address" |
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depends on PPC_EARLY_DEBUG_CPM |
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default "0xfa202008" if PPC_EP88XC |
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default "0xf0001ff8" if CPM2 |
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default "0xff002008" if CPM1 |
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help |
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This specifies the address of the transmit descriptor |
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used for early debug output. Because it is needed before |
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platform probing is done, all platforms selected must |
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share the same address. |
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config FAIL_IOMMU |
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bool "Fault-injection capability for IOMMU" |
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depends on FAULT_INJECTION |
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depends on PCI || IBMVIO |
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help |
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Provide fault-injection capability for IOMMU. Each device can |
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be selectively enabled via the fail_iommu property. |
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If you are unsure, say N. |
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config PPC_FAST_ENDIAN_SWITCH |
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bool "Deprecated fast endian-switch syscall" |
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depends on DEBUG_KERNEL && PPC_BOOK3S_64 |
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help |
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If you're unsure what this is, say N. |
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config KASAN_SHADOW_OFFSET |
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hex |
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depends on KASAN |
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default 0xe0000000
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