mirror of
https://github.com/FEX-Emu/linux.git
synced 2024-12-29 13:00:35 +00:00
fb2af0020a
Pull ARM updates from Russell King:
"This contains the usual updates from other people (listed below) and
the usual random muddle of miscellaneous ARM updates which cover some
low priority bug fixes and performance improvements.
I've started to put the pull request wording into the merge commits,
which are:
- NoMMU stuff:
This includes the following series sent earlier to the list:
- nommu-fixes
- R7 Support
- MPU support
I've left out the ARCH_MULTIPLATFORM/!MMU stuff that Arnd and I
were discussing today until we've reached a conclusion/that's had
some more review.
This is rebased (and re-tested) on your devel-stable branch because
otherwise there were going to be conflicts with Uwe's V7M work now
that you've merged that. I've included the fix for limiting MPU to
CPU_V7.
- Huge page support
These changes bring both HugeTLB support and Transparent HugePage
(THP) support to ARM. Only long descriptors (LPAE) are supported
in this series.
The code has been tested on an Arndale board (Exynos 5250).
- LPAE updates
Please pull these miscellaneous LPAE fixes I've been collecting for
a while now for 3.11. They've been tested and reviewed by quite a
few people, and most of the patches are pretty trivial. -- Will Deacon.
- arch_timer cleanups
Please pull these arch_timer cleanups I've been holding onto for a
while. They're the same as my last posting, but have been rebased
to v3.10-rc3.
- mpidr linearisation (multiprocessor id register - identifies which
CPU number we are in the system)
This patch series that implements MPIDR linearization through a
simple hashing algorithm and updates current cpu_{suspend}/{resume}
code to use the newly created hash structures to retrieve context
pointers. It represents a stepping stone for the implementation of
power management code on forthcoming multi-cluster ARM systems.
It has been tested on TC2 (dual cluster A15xA7 system), iMX6q,
OMAP4 and Tegra, with processors hitting low-power states requiring
warm-boot resume through the cpu_resume code path"
* 'for-linus' of git://git.linaro.org/people/rmk/linux-arm: (77 commits)
ARM: 7775/1: mm: Remove do_sect_fault from LPAE code
ARM: 7777/1: Avoid extra calls to the C compiler
ARM: 7774/1: Fix dtb dependency to use order-only prerequisites
ARM: 7770/1: remove residual ARMv2 support from decompressor
ARM: 7769/1: Cortex-A15: fix erratum 798181 implementation
ARM: 7768/1: prevent risks of out-of-bound access in ASID allocator
ARM: 7767/1: let the ASID allocator handle suspended animation
ARM: 7766/1: versatile: don't mark pen as __INIT
ARM: 7765/1: perf: Record the user-mode PC in the call chain.
ARM: 7735/2: Preserve the user r/w register TPIDRURW on context switch and fork
ARM: kernel: implement stack pointer save array through MPIDR hashing
ARM: kernel: build MPIDR hash function data structure
ARM: mpu: Ensure that MPU depends on CPU_V7
ARM: mpu: protect the vectors page with an MPU region
ARM: mpu: Allow enabling of the MPU via kconfig
ARM: 7758/1: introduce config HAS_BANDGAP
ARM: 7757/1: mm: don't flush icache in switch_mm with hardware broadcasting
ARM: 7751/1: zImage: don't overwrite ourself with a page table
ARM: 7749/1: spinlock: retry trylock operation if strex fails on free lock
ARM: 7748/1: oabi: handle faults when loading swi instruction from userspace
...
848 lines
26 KiB
Plaintext
848 lines
26 KiB
Plaintext
menu "Kernel hacking"
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source "lib/Kconfig.debug"
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config STRICT_DEVMEM
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bool "Filter access to /dev/mem"
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depends on MMU
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---help---
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If this option is disabled, you allow userspace (root) access to all
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of memory, including kernel and userspace memory. Accidental
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access to this is obviously disastrous, but specific access can
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be used by people debugging the kernel.
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If this option is switched on, the /dev/mem file only allows
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userspace access to memory mapped peripherals.
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If in doubt, say Y.
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# RMK wants arm kernels compiled with frame pointers or stack unwinding.
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# If you know what you are doing and are willing to live without stack
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# traces, you can get a slightly smaller kernel by setting this option to
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# n, but then RMK will have to kill you ;).
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config FRAME_POINTER
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bool
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depends on !THUMB2_KERNEL
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default y if !ARM_UNWIND || FUNCTION_GRAPH_TRACER
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help
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If you say N here, the resulting kernel will be slightly smaller and
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faster. However, if neither FRAME_POINTER nor ARM_UNWIND are enabled,
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when a problem occurs with the kernel, the information that is
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reported is severely limited.
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config ARM_UNWIND
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bool "Enable stack unwinding support (EXPERIMENTAL)"
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depends on AEABI
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default y
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help
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This option enables stack unwinding support in the kernel
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using the information automatically generated by the
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compiler. The resulting kernel image is slightly bigger but
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the performance is not affected. Currently, this feature
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only works with EABI compilers. If unsure say Y.
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config OLD_MCOUNT
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bool
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depends on FUNCTION_TRACER && FRAME_POINTER
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default y
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config DEBUG_USER
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bool "Verbose user fault messages"
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help
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When a user program crashes due to an exception, the kernel can
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print a brief message explaining what the problem was. This is
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sometimes helpful for debugging but serves no purpose on a
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production system. Most people should say N here.
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In addition, you need to pass user_debug=N on the kernel command
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line to enable this feature. N consists of the sum of:
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1 - undefined instruction events
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2 - system calls
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4 - invalid data aborts
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8 - SIGSEGV faults
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16 - SIGBUS faults
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# These options are only for real kernel hackers who want to get their hands dirty.
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config DEBUG_LL
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bool "Kernel low-level debugging functions (read help!)"
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depends on DEBUG_KERNEL
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help
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Say Y here to include definitions of printascii, printch, printhex
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in the kernel. This is helpful if you are debugging code that
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executes before the console is initialized.
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Note that selecting this option will limit the kernel to a single
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UART definition, as specified below. Attempting to boot the kernel
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image on a different platform *will not work*, so this option should
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not be enabled for kernels that are intended to be portable.
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choice
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prompt "Kernel low-level debugging port"
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depends on DEBUG_LL
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config AT91_DEBUG_LL_DBGU0
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bool "Kernel low-level debugging on rm9200, 9260/9g20, 9261/9g10 and 9rl"
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depends on HAVE_AT91_DBGU0
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config AT91_DEBUG_LL_DBGU1
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bool "Kernel low-level debugging on 9263 and 9g45"
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depends on HAVE_AT91_DBGU1
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config DEBUG_BCM2835
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bool "Kernel low-level debugging on BCM2835 PL011 UART"
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depends on ARCH_BCM2835
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config DEBUG_CLPS711X_UART1
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bool "Kernel low-level debugging messages via UART1"
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depends on ARCH_CLPS711X
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help
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Say Y here if you want the debug print routines to direct
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their output to the first serial port on these devices.
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config DEBUG_CLPS711X_UART2
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bool "Kernel low-level debugging messages via UART2"
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depends on ARCH_CLPS711X
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help
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Say Y here if you want the debug print routines to direct
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their output to the second serial port on these devices.
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config DEBUG_CNS3XXX
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bool "Kernel Kernel low-level debugging on Cavium Networks CNS3xxx"
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depends on ARCH_CNS3XXX
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help
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Say Y here if you want the debug print routines to direct
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their output to the CNS3xxx UART0.
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config DEBUG_DAVINCI_DA8XX_UART1
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bool "Kernel low-level debugging on DaVinci DA8XX using UART1"
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depends on ARCH_DAVINCI_DA8XX
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help
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Say Y here if you want the debug print routines to direct
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their output to UART1 serial port on DaVinci DA8XX devices.
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config DEBUG_DAVINCI_DA8XX_UART2
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bool "Kernel low-level debugging on DaVinci DA8XX using UART2"
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depends on ARCH_DAVINCI_DA8XX
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help
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Say Y here if you want the debug print routines to direct
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their output to UART2 serial port on DaVinci DA8XX devices.
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config DEBUG_DAVINCI_DMx_UART0
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bool "Kernel low-level debugging on DaVinci DMx using UART0"
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depends on ARCH_DAVINCI_DMx
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help
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Say Y here if you want the debug print routines to direct
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their output to UART0 serial port on DaVinci DMx devices.
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config DEBUG_DAVINCI_TNETV107X_UART1
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bool "Kernel low-level debugging on DaVinci TNETV107x using UART1"
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depends on ARCH_DAVINCI_TNETV107X
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help
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Say Y here if you want the debug print routines to direct
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their output to UART1 serial port on DaVinci TNETV107X
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devices.
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config DEBUG_ZYNQ_UART0
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bool "Kernel low-level debugging on Xilinx Zynq using UART0"
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depends on ARCH_ZYNQ
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help
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Say Y here if you want the debug print routines to direct
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their output to UART0 on the Zynq platform.
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config DEBUG_ZYNQ_UART1
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bool "Kernel low-level debugging on Xilinx Zynq using UART1"
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depends on ARCH_ZYNQ
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help
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Say Y here if you want the debug print routines to direct
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their output to UART1 on the Zynq platform.
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If you have a ZC702 board and want early boot messages to
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appear on the USB serial adaptor, select this option.
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config DEBUG_DC21285_PORT
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bool "Kernel low-level debugging messages via footbridge serial port"
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depends on FOOTBRIDGE
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help
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Say Y here if you want the debug print routines to direct
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their output to the serial port in the DC21285 (Footbridge).
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config DEBUG_FOOTBRIDGE_COM1
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bool "Kernel low-level debugging messages via footbridge 8250 at PCI COM1"
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depends on FOOTBRIDGE
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help
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Say Y here if you want the debug print routines to direct
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their output to the 8250 at PCI COM1.
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config DEBUG_HIGHBANK_UART
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bool "Kernel low-level debugging messages via Highbank UART"
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depends on ARCH_HIGHBANK
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help
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Say Y here if you want the debug print routines to direct
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their output to the UART on Highbank based devices.
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config DEBUG_IMX1_UART
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bool "i.MX1 Debug UART"
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depends on SOC_IMX1
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help
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Say Y here if you want kernel low-level debugging support
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on i.MX1.
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config DEBUG_IMX23_UART
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bool "i.MX23 Debug UART"
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depends on SOC_IMX23
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help
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Say Y here if you want kernel low-level debugging support
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on i.MX23.
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config DEBUG_IMX25_UART
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bool "i.MX25 Debug UART"
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depends on SOC_IMX25
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help
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Say Y here if you want kernel low-level debugging support
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on i.MX25.
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config DEBUG_IMX21_IMX27_UART
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bool "i.MX21 and i.MX27 Debug UART"
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depends on SOC_IMX21 || SOC_IMX27
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help
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Say Y here if you want kernel low-level debugging support
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on i.MX21 or i.MX27.
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config DEBUG_IMX28_UART
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bool "i.MX28 Debug UART"
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depends on SOC_IMX28
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help
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Say Y here if you want kernel low-level debugging support
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on i.MX28.
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config DEBUG_IMX31_UART
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bool "i.MX31 Debug UART"
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depends on SOC_IMX31
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help
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Say Y here if you want kernel low-level debugging support
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on i.MX31.
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config DEBUG_IMX35_UART
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bool "i.MX35 Debug UART"
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depends on SOC_IMX35
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help
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Say Y here if you want kernel low-level debugging support
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on i.MX35.
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config DEBUG_IMX51_UART
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bool "i.MX51 Debug UART"
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depends on SOC_IMX51
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help
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Say Y here if you want kernel low-level debugging support
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on i.MX51.
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config DEBUG_IMX53_UART
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bool "i.MX53 Debug UART"
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depends on SOC_IMX53
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help
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Say Y here if you want kernel low-level debugging support
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on i.MX53.
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config DEBUG_IMX6Q_UART
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bool "i.MX6Q/DL Debug UART"
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depends on SOC_IMX6Q
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help
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Say Y here if you want kernel low-level debugging support
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on i.MX6Q/DL.
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config DEBUG_IMX6SL_UART
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bool "i.MX6SL Debug UART"
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depends on SOC_IMX6SL
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help
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Say Y here if you want kernel low-level debugging support
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on i.MX6SL.
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config DEBUG_KEYSTONE_UART0
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bool "Kernel low-level debugging on KEYSTONE2 using UART0"
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depends on ARCH_KEYSTONE
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help
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Say Y here if you want the debug print routines to direct
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their output to UART0 serial port on KEYSTONE2 devices.
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config DEBUG_KEYSTONE_UART1
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bool "Kernel low-level debugging on KEYSTONE2 using UART1"
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depends on ARCH_KEYSTONE
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help
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Say Y here if you want the debug print routines to direct
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their output to UART1 serial port on KEYSTONE2 devices.
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config DEBUG_MMP_UART2
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bool "Kernel low-level debugging message via MMP UART2"
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depends on ARCH_MMP
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help
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Say Y here if you want kernel low-level debugging support
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on MMP UART2.
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config DEBUG_MMP_UART3
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bool "Kernel low-level debugging message via MMP UART3"
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depends on ARCH_MMP
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help
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Say Y here if you want kernel low-level debugging support
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on MMP UART3.
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config DEBUG_MSM_UART1
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bool "Kernel low-level debugging messages via MSM UART1"
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depends on ARCH_MSM7X00A || ARCH_MSM7X30 || ARCH_QSD8X50
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help
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Say Y here if you want the debug print routines to direct
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their output to the first serial port on MSM devices.
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config DEBUG_MSM_UART2
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bool "Kernel low-level debugging messages via MSM UART2"
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depends on ARCH_MSM7X00A || ARCH_MSM7X30 || ARCH_QSD8X50
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help
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Say Y here if you want the debug print routines to direct
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their output to the second serial port on MSM devices.
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config DEBUG_MSM_UART3
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bool "Kernel low-level debugging messages via MSM UART3"
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depends on ARCH_MSM7X00A || ARCH_MSM7X30 || ARCH_QSD8X50
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help
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Say Y here if you want the debug print routines to direct
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their output to the third serial port on MSM devices.
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config DEBUG_MSM8660_UART
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bool "Kernel low-level debugging messages via MSM 8660 UART"
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depends on ARCH_MSM8X60
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select MSM_HAS_DEBUG_UART_HS
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help
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Say Y here if you want the debug print routines to direct
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their output to the serial port on MSM 8660 devices.
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config DEBUG_MSM8960_UART
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bool "Kernel low-level debugging messages via MSM 8960 UART"
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depends on ARCH_MSM8960
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select MSM_HAS_DEBUG_UART_HS
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help
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Say Y here if you want the debug print routines to direct
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their output to the serial port on MSM 8960 devices.
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config DEBUG_MVEBU_UART
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bool "Kernel low-level debugging messages via MVEBU UART (old bootloaders)"
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depends on ARCH_MVEBU
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help
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Say Y here if you want kernel low-level debugging support
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on MVEBU based platforms.
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This option should be used with the old bootloaders
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that left the internal registers mapped at
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0xd0000000. As of today, this is the case on
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platforms such as the Globalscale Mirabox or the
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Plathome OpenBlocks AX3, when using the original
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bootloader.
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If the wrong DEBUG_MVEBU_UART* option is selected,
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when u-boot hands over to the kernel, the system
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silently crashes, with no serial output at all.
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config DEBUG_MVEBU_UART_ALTERNATE
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bool "Kernel low-level debugging messages via MVEBU UART (new bootloaders)"
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depends on ARCH_MVEBU
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help
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Say Y here if you want kernel low-level debugging support
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on MVEBU based platforms.
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This option should be used with the new bootloaders
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that remap the internal registers at 0xf1000000.
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If the wrong DEBUG_MVEBU_UART* option is selected,
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when u-boot hands over to the kernel, the system
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silently crashes, with no serial output at all.
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config DEBUG_NOMADIK_UART
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bool "Kernel low-level debugging messages via NOMADIK UART"
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depends on ARCH_NOMADIK
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help
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Say Y here if you want kernel low-level debugging support
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on NOMADIK based platforms.
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config DEBUG_NSPIRE_CLASSIC_UART
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bool "Kernel low-level debugging via TI-NSPIRE 8250 UART"
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depends on ARCH_NSPIRE
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help
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Say Y here if you want kernel low-level debugging support
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on TI-NSPIRE classic models.
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config DEBUG_NSPIRE_CX_UART
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bool "Kernel low-level debugging via TI-NSPIRE PL011 UART"
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depends on ARCH_NSPIRE
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help
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Say Y here if you want kernel low-level debugging support
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on TI-NSPIRE CX models.
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config DEBUG_OMAP2PLUS_UART
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bool "Kernel low-level debugging messages via OMAP2PLUS UART"
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depends on ARCH_OMAP2PLUS
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help
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Say Y here if you want kernel low-level debugging support
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on OMAP2PLUS based platforms.
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config DEBUG_PICOXCELL_UART
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depends on ARCH_PICOXCELL
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bool "Use PicoXcell UART for low-level debug"
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help
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Say Y here if you want kernel low-level debugging support
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on PicoXcell based platforms.
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config DEBUG_PXA_UART1
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depends on ARCH_PXA
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bool "Use PXA UART1 for low-level debug"
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help
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Say Y here if you want kernel low-level debugging support
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on PXA UART1.
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config DEBUG_REALVIEW_STD_PORT
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bool "RealView Default UART"
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depends on ARCH_REALVIEW
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help
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Say Y here if you want the debug print routines to direct
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their output to the serial port on RealView EB, PB11MP, PBA8
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and PBX platforms.
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config DEBUG_REALVIEW_PB1176_PORT
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bool "RealView PB1176 UART"
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depends on MACH_REALVIEW_PB1176
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help
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Say Y here if you want the debug print routines to direct
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their output to the standard serial port on the RealView
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PB1176 platform.
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config DEBUG_ROCKCHIP_UART
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bool "Kernel low-level debugging messages via Rockchip UART"
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depends on ARCH_ROCKCHIP
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help
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Say Y here if you want kernel low-level debugging support
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on Rockchip based platforms.
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|
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config DEBUG_S3C_UART0
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depends on PLAT_SAMSUNG
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select DEBUG_EXYNOS_UART if ARCH_EXYNOS
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bool "Use S3C UART 0 for low-level debug"
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help
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Say Y here if you want the debug print routines to direct
|
|
their output to UART 0. The port must have been initialised
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by the boot-loader before use.
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The uncompressor code port configuration is now handled
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by CONFIG_S3C_LOWLEVEL_UART_PORT.
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config DEBUG_S3C_UART1
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depends on PLAT_SAMSUNG
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select DEBUG_EXYNOS_UART if ARCH_EXYNOS
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bool "Use S3C UART 1 for low-level debug"
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help
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Say Y here if you want the debug print routines to direct
|
|
their output to UART 1. The port must have been initialised
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by the boot-loader before use.
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The uncompressor code port configuration is now handled
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by CONFIG_S3C_LOWLEVEL_UART_PORT.
|
|
|
|
config DEBUG_S3C_UART2
|
|
depends on PLAT_SAMSUNG
|
|
select DEBUG_EXYNOS_UART if ARCH_EXYNOS
|
|
bool "Use S3C UART 2 for low-level debug"
|
|
help
|
|
Say Y here if you want the debug print routines to direct
|
|
their output to UART 2. The port must have been initialised
|
|
by the boot-loader before use.
|
|
|
|
The uncompressor code port configuration is now handled
|
|
by CONFIG_S3C_LOWLEVEL_UART_PORT.
|
|
|
|
config DEBUG_S3C_UART3
|
|
depends on PLAT_SAMSUNG && ARCH_EXYNOS
|
|
select DEBUG_EXYNOS_UART
|
|
bool "Use S3C UART 3 for low-level debug"
|
|
help
|
|
Say Y here if you want the debug print routines to direct
|
|
their output to UART 3. The port must have been initialised
|
|
by the boot-loader before use.
|
|
|
|
The uncompressor code port configuration is now handled
|
|
by CONFIG_S3C_LOWLEVEL_UART_PORT.
|
|
|
|
config DEBUG_SOCFPGA_UART
|
|
depends on ARCH_SOCFPGA
|
|
bool "Use SOCFPGA UART for low-level debug"
|
|
help
|
|
Say Y here if you want kernel low-level debugging support
|
|
on SOCFPGA based platforms.
|
|
|
|
config DEBUG_SUNXI_UART0
|
|
bool "Kernel low-level debugging messages via sunXi UART0"
|
|
depends on ARCH_SUNXI
|
|
help
|
|
Say Y here if you want kernel low-level debugging support
|
|
on Allwinner A1X based platforms on the UART0.
|
|
|
|
config DEBUG_SUNXI_UART1
|
|
bool "Kernel low-level debugging messages via sunXi UART1"
|
|
depends on ARCH_SUNXI
|
|
help
|
|
Say Y here if you want kernel low-level debugging support
|
|
on Allwinner A1X based platforms on the UART1.
|
|
|
|
config DEBUG_TEGRA_UART
|
|
depends on ARCH_TEGRA
|
|
bool "Use Tegra UART for low-level debug"
|
|
help
|
|
Say Y here if you want kernel low-level debugging support
|
|
on Tegra based platforms.
|
|
|
|
config DEBUG_SIRFPRIMA2_UART1
|
|
bool "Kernel low-level debugging messages via SiRFprimaII UART1"
|
|
depends on ARCH_PRIMA2
|
|
help
|
|
Say Y here if you want the debug print routines to direct
|
|
their output to the uart1 port on SiRFprimaII devices.
|
|
|
|
config DEBUG_SIRFMARCO_UART1
|
|
bool "Kernel low-level debugging messages via SiRFmarco UART1"
|
|
depends on ARCH_MARCO
|
|
help
|
|
Say Y here if you want the debug print routines to direct
|
|
their output to the uart1 port on SiRFmarco devices.
|
|
|
|
config DEBUG_U300_UART
|
|
bool "Kernel low-level debugging messages via U300 UART0"
|
|
depends on ARCH_U300
|
|
help
|
|
Say Y here if you want the debug print routines to direct
|
|
their output to the uart port on U300 devices.
|
|
|
|
config DEBUG_UX500_UART
|
|
depends on ARCH_U8500
|
|
bool "Use Ux500 UART for low-level debug"
|
|
help
|
|
Say Y here if you want kernel low-level debugging support
|
|
on Ux500 based platforms.
|
|
|
|
config DEBUG_VEXPRESS_UART0_DETECT
|
|
bool "Autodetect UART0 on Versatile Express Cortex-A core tiles"
|
|
depends on ARCH_VEXPRESS && CPU_CP15_MMU
|
|
help
|
|
This option enables a simple heuristic which tries to determine
|
|
the motherboard's memory map variant (original or RS1) and then
|
|
choose the relevant UART0 base address.
|
|
|
|
Note that this will only work with standard A-class core tiles,
|
|
and may fail with non-standard SMM or custom software models.
|
|
|
|
config DEBUG_VEXPRESS_UART0_CA9
|
|
bool "Use PL011 UART0 at 0x10009000 (V2P-CA9 core tile)"
|
|
depends on ARCH_VEXPRESS
|
|
help
|
|
This option selects UART0 at 0x10009000. Except for custom models,
|
|
this applies only to the V2P-CA9 tile.
|
|
|
|
config DEBUG_VEXPRESS_UART0_RS1
|
|
bool "Use PL011 UART0 at 0x1c090000 (RS1 complaint tiles)"
|
|
depends on ARCH_VEXPRESS
|
|
help
|
|
This option selects UART0 at 0x1c090000. This applies to most
|
|
of the tiles using the RS1 memory map, including all new A-class
|
|
core tiles, FPGA-based SMMs and software models.
|
|
|
|
config DEBUG_VEXPRESS_UART0_CRX
|
|
bool "Use PL011 UART0 at 0xb0090000 (Cortex-R compliant tiles)"
|
|
depends on ARCH_VEXPRESS && !MMU
|
|
help
|
|
This option selects UART0 at 0xb0090000. This is appropriate for
|
|
Cortex-R series tiles and SMMs, such as Cortex-R5 and Cortex-R7
|
|
|
|
config DEBUG_VT8500_UART0
|
|
bool "Use UART0 on VIA/Wondermedia SoCs"
|
|
depends on ARCH_VT8500
|
|
help
|
|
This option selects UART0 on VIA/Wondermedia System-on-a-chip
|
|
devices, including VT8500, WM8505, WM8650 and WM8850.
|
|
|
|
config DEBUG_STI_UART
|
|
depends on ARCH_STI
|
|
bool "Use StiH415/416 ASC for low-level debug"
|
|
help
|
|
Say Y here if you want kernel low-level debugging support
|
|
on StiH415/416 based platforms like B2000, B2020.
|
|
It support UART2 and SBC_UART1.
|
|
|
|
If unsure, say N.
|
|
|
|
config DEBUG_LL_UART_NONE
|
|
bool "No low-level debugging UART"
|
|
depends on !ARCH_MULTIPLATFORM
|
|
help
|
|
Say Y here if your platform doesn't provide a UART option
|
|
below. This relies on your platform choosing the right UART
|
|
definition internally in order for low-level debugging to
|
|
work.
|
|
|
|
config DEBUG_ICEDCC
|
|
bool "Kernel low-level debugging via EmbeddedICE DCC channel"
|
|
help
|
|
Say Y here if you want the debug print routines to direct
|
|
their output to the EmbeddedICE macrocell's DCC channel using
|
|
co-processor 14. This is known to work on the ARM9 style ICE
|
|
channel and on the XScale with the PEEDI.
|
|
|
|
Note that the system will appear to hang during boot if there
|
|
is nothing connected to read from the DCC.
|
|
|
|
config DEBUG_SEMIHOSTING
|
|
bool "Kernel low-level debug output via semihosting I/O"
|
|
help
|
|
Semihosting enables code running on an ARM target to use
|
|
the I/O facilities on a host debugger/emulator through a
|
|
simple SVC call. The host debugger or emulator must have
|
|
semihosting enabled for the special svc call to be trapped
|
|
otherwise the kernel will crash.
|
|
|
|
This is known to work with OpenOCD, as well as
|
|
ARM's Fast Models, or any other controlling environment
|
|
that implements semihosting.
|
|
|
|
For more details about semihosting, please see
|
|
chapter 8 of DUI0203I_rvct_developer_guide.pdf from ARM Ltd.
|
|
|
|
endchoice
|
|
|
|
config DEBUG_EXYNOS_UART
|
|
bool
|
|
|
|
config DEBUG_IMX_UART_PORT
|
|
int "i.MX Debug UART Port Selection" if DEBUG_IMX1_UART || \
|
|
DEBUG_IMX25_UART || \
|
|
DEBUG_IMX21_IMX27_UART || \
|
|
DEBUG_IMX31_UART || \
|
|
DEBUG_IMX35_UART || \
|
|
DEBUG_IMX51_UART || \
|
|
DEBUG_IMX53_UART || \
|
|
DEBUG_IMX6Q_UART || \
|
|
DEBUG_IMX6SL_UART
|
|
default 1
|
|
depends on ARCH_MXC
|
|
help
|
|
Choose UART port on which kernel low-level debug messages
|
|
should be output.
|
|
|
|
choice
|
|
prompt "Low-level debug console UART"
|
|
depends on DEBUG_OMAP2PLUS_UART
|
|
|
|
config DEBUG_OMAP2UART1
|
|
bool "OMAP2/3/4 UART1 (omap2/3 sdp boards and some omap3 boards)"
|
|
help
|
|
This covers at least h4, 2430sdp, 3430sdp, 3630sdp,
|
|
omap3 torpedo and 3530 lv som.
|
|
|
|
config DEBUG_OMAP2UART2
|
|
bool "OMAP2/3/4 UART2"
|
|
|
|
config DEBUG_OMAP2UART3
|
|
bool "OMAP2 UART3 (n8x0)"
|
|
|
|
config DEBUG_OMAP3UART3
|
|
bool "OMAP3 UART3 (most omap3 boards)"
|
|
help
|
|
This covers at least cm_t3x, beagle, crane, devkit8000,
|
|
igep00x0, ldp, n900, n9(50), pandora, overo, touchbook,
|
|
and 3517evm.
|
|
|
|
config DEBUG_OMAP4UART3
|
|
bool "OMAP4/5 UART3 (omap4 blaze, panda, omap5 sevm)"
|
|
|
|
config DEBUG_OMAP3UART4
|
|
bool "OMAP36XX UART4"
|
|
|
|
config DEBUG_OMAP4UART4
|
|
bool "OMAP4/5 UART4"
|
|
|
|
config DEBUG_TI81XXUART1
|
|
bool "TI81XX UART1 (ti8148evm)"
|
|
|
|
config DEBUG_TI81XXUART2
|
|
bool "TI81XX UART2"
|
|
|
|
config DEBUG_TI81XXUART3
|
|
bool "TI81XX UART3 (ti8168evm)"
|
|
|
|
config DEBUG_AM33XXUART1
|
|
bool "AM33XX UART1"
|
|
|
|
config DEBUG_ZOOM_UART
|
|
bool "Zoom2/3 UART"
|
|
endchoice
|
|
|
|
choice
|
|
prompt "Low-level debug console UART"
|
|
depends on DEBUG_ROCKCHIP_UART
|
|
|
|
config DEBUG_RK29_UART0
|
|
bool "RK29 UART0"
|
|
|
|
config DEBUG_RK29_UART1
|
|
bool "RK29 UART1"
|
|
|
|
config DEBUG_RK29_UART2
|
|
bool "RK29 UART2"
|
|
|
|
config DEBUG_RK3X_UART0
|
|
bool "RK3X UART0"
|
|
|
|
config DEBUG_RK3X_UART1
|
|
bool "RK3X UART1"
|
|
|
|
config DEBUG_RK3X_UART2
|
|
bool "RK3X UART2"
|
|
|
|
config DEBUG_RK3X_UART3
|
|
bool "RK3X UART3"
|
|
endchoice
|
|
|
|
choice
|
|
prompt "Low-level debug console UART"
|
|
depends on DEBUG_LL && DEBUG_TEGRA_UART
|
|
|
|
config TEGRA_DEBUG_UART_AUTO_ODMDATA
|
|
bool "Via ODMDATA"
|
|
help
|
|
Automatically determines which UART to use for low-level debug based
|
|
on the ODMDATA value. This value is part of the BCT, and is written
|
|
to the boot memory device using nvflash, or other flashing tool.
|
|
When bits 19:18 are 3, then bits 17:15 indicate which UART to use;
|
|
0/1/2/3/4 are UART A/B/C/D/E.
|
|
|
|
config TEGRA_DEBUG_UARTA
|
|
bool "UART A"
|
|
|
|
config TEGRA_DEBUG_UARTB
|
|
bool "UART B"
|
|
|
|
config TEGRA_DEBUG_UARTC
|
|
bool "UART C"
|
|
|
|
config TEGRA_DEBUG_UARTD
|
|
bool "UART D"
|
|
|
|
config TEGRA_DEBUG_UARTE
|
|
bool "UART E"
|
|
|
|
endchoice
|
|
|
|
choice
|
|
prompt "Low-level debug console UART"
|
|
depends on DEBUG_LL && DEBUG_STI_UART
|
|
|
|
config STIH41X_DEBUG_ASC2
|
|
bool "ASC2 UART"
|
|
help
|
|
Say Y here if you want kernel low-level debugging support
|
|
on STiH415/416 based platforms like b2000, which has
|
|
default UART wired up to ASC2.
|
|
|
|
If unsure, say N.
|
|
|
|
config STIH41X_DEBUG_SBC_ASC1
|
|
bool "SBC ASC1 UART"
|
|
help
|
|
Say Y here if you want kernel low-level debugging support
|
|
on STiH415/416 based platforms like b2020. which has
|
|
default UART wired up to SBC ASC1.
|
|
|
|
If unsure, say N.
|
|
|
|
endchoice
|
|
|
|
config DEBUG_LL_INCLUDE
|
|
string
|
|
default "debug/bcm2835.S" if DEBUG_BCM2835
|
|
default "debug/cns3xxx.S" if DEBUG_CNS3XXX
|
|
default "debug/exynos.S" if DEBUG_EXYNOS_UART
|
|
default "debug/highbank.S" if DEBUG_HIGHBANK_UART
|
|
default "debug/icedcc.S" if DEBUG_ICEDCC
|
|
default "debug/imx.S" if DEBUG_IMX1_UART || \
|
|
DEBUG_IMX25_UART || \
|
|
DEBUG_IMX21_IMX27_UART || \
|
|
DEBUG_IMX31_UART || \
|
|
DEBUG_IMX35_UART || \
|
|
DEBUG_IMX51_UART || \
|
|
DEBUG_IMX53_UART ||\
|
|
DEBUG_IMX6Q_UART || \
|
|
DEBUG_IMX6SL_UART
|
|
default "debug/keystone.S" if DEBUG_KEYSTONE_UART0 || \
|
|
DEBUG_KEYSTONE_UART1
|
|
default "debug/mvebu.S" if DEBUG_MVEBU_UART || \
|
|
DEBUG_MVEBU_UART_ALTERNATE
|
|
default "debug/mxs.S" if DEBUG_IMX23_UART || DEBUG_IMX28_UART
|
|
default "debug/nomadik.S" if DEBUG_NOMADIK_UART
|
|
default "debug/nspire.S" if DEBUG_NSPIRE_CX_UART || \
|
|
DEBUG_NSPIRE_CLASSIC_UART
|
|
default "debug/omap2plus.S" if DEBUG_OMAP2PLUS_UART
|
|
default "debug/picoxcell.S" if DEBUG_PICOXCELL_UART
|
|
default "debug/pxa.S" if DEBUG_PXA_UART1 || DEBUG_MMP_UART2 || \
|
|
DEBUG_MMP_UART3
|
|
default "debug/rockchip.S" if DEBUG_ROCKCHIP_UART
|
|
default "debug/sirf.S" if DEBUG_SIRFPRIMA2_UART1 || DEBUG_SIRFMARCO_UART1
|
|
default "debug/socfpga.S" if DEBUG_SOCFPGA_UART
|
|
default "debug/sti.S" if DEBUG_STI_UART
|
|
default "debug/sunxi.S" if DEBUG_SUNXI_UART0 || DEBUG_SUNXI_UART1
|
|
default "debug/tegra.S" if DEBUG_TEGRA_UART
|
|
default "debug/u300.S" if DEBUG_U300_UART
|
|
default "debug/ux500.S" if DEBUG_UX500_UART
|
|
default "debug/vexpress.S" if DEBUG_VEXPRESS_UART0_DETECT || \
|
|
DEBUG_VEXPRESS_UART0_CA9 || DEBUG_VEXPRESS_UART0_RS1 || \
|
|
DEBUG_VEXPRESS_UART0_CRX
|
|
default "debug/vt8500.S" if DEBUG_VT8500_UART0
|
|
default "debug/zynq.S" if DEBUG_ZYNQ_UART0 || DEBUG_ZYNQ_UART1
|
|
default "mach/debug-macro.S"
|
|
|
|
config DEBUG_UNCOMPRESS
|
|
bool
|
|
default y if ARCH_MULTIPLATFORM && DEBUG_LL && \
|
|
!DEBUG_OMAP2PLUS_UART && \
|
|
!DEBUG_TEGRA_UART
|
|
|
|
config UNCOMPRESS_INCLUDE
|
|
string
|
|
default "debug/uncompress.h" if ARCH_MULTIPLATFORM
|
|
default "mach/uncompress.h"
|
|
|
|
config EARLY_PRINTK
|
|
bool "Early printk"
|
|
depends on DEBUG_LL
|
|
help
|
|
Say Y here if you want to have an early console using the
|
|
kernel low-level debugging functions. Add earlyprintk to your
|
|
kernel parameters to enable this console.
|
|
|
|
config OC_ETM
|
|
bool "On-chip ETM and ETB"
|
|
depends on ARM_AMBA
|
|
help
|
|
Enables the on-chip embedded trace macrocell and embedded trace
|
|
buffer driver that will allow you to collect traces of the
|
|
kernel code.
|
|
|
|
config ARM_KPROBES_TEST
|
|
tristate "Kprobes test module"
|
|
depends on KPROBES && MODULES
|
|
help
|
|
Perform tests of kprobes API and instruction set simulation.
|
|
|
|
config PID_IN_CONTEXTIDR
|
|
bool "Write the current PID to the CONTEXTIDR register"
|
|
depends on CPU_COPY_V6
|
|
help
|
|
Enabling this option causes the kernel to write the current PID to
|
|
the PROCID field of the CONTEXTIDR register, at the expense of some
|
|
additional instructions during context switch. Say Y here only if you
|
|
are planning to use hardware trace tools with this kernel.
|
|
|
|
endmenu
|