path: root/arch/arm64/Kconfig.debug
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2013-03-19arm64: Kconfig.debug: Remove unused CONFIG_DEBUG_ERRORSPaul Bolle1-11/+0
The Kconfig entry for DEBUG_ERRORS is a verbatim copy of the former arm entry for that symbol. It got removed in v2.6.39 because it wasn't actually used anywhere. There are still no users of DEBUG_ERRORS so remove this entry too. Signed-off-by: Paul Bolle <> [ removed option from defconfig] Signed-off-by: Catalin Marinas <>
2013-02-11arm64: mm: update CONTEXTIDR register to contain PID of current processWill Deacon1-0/+8
This patch is a port of 575320d62 ("ARM: 7445/1: mm: update CONTEXTIDR register to contain PID of current process") from ARM that introduces a new Kconfig option which, when enabled, causes the kernel to write the PID of the current task into the CONTEXTIDR register on context switch. This is useful when analysing hardware trace, since writes to this register can be configured to emit an event into the trace stream. Signed-off-by: Will Deacon <> [ contextidr_thread_switch() moved to mmu_context.h] Signed-off-by: Catalin Marinas <>
2013-01-22arm64: Add simple earlyprintk supportCatalin Marinas1-0/+9
This patch adds support for "earlyprintk=" parameter on the kernel command line. The format is: earlyprintk=<name>[,<addr>][,<options>] where <name> is the name of the (UART) device, e.g. "pl011", <addr> is the I/O address. The <options> aren't currently used. The mapping of the earlyprintk device is done very early during kernel boot and there are restrictions on which functions it can call. A special early_io_map() function is added which creates the mapping from the pre-defined EARLY_IOBASE to the device I/O address passed via the kernel parameter. The pgd entry corresponding to EARLY_IOBASE is pre-populated in head.S during kernel boot. Only PL011 is currently supported and it is assumed that the interface is already initialised by the boot loader before the kernel is started. Signed-off-by: Catalin Marinas <> Acked-by: Arnd Bergmann <>
2012-09-17arm64: Build infrastructureCatalin Marinas1-0/+27
This patch adds Makefile and Kconfig files required for building an AArch64 kernel. Signed-off-by: Will Deacon <> Signed-off-by: Catalin Marinas <> Acked-by: Tony Lindgren <> Acked-by: Nicolas Pitre <> Acked-by: Olof Johansson <> Acked-by: Santosh Shilimkar <> Acked-by: Arnd Bergmann <>