diff options
Diffstat (limited to 'arch/tile/Kconfig')
| -rw-r--r-- | arch/tile/Kconfig | 48 |
1 files changed, 16 insertions, 32 deletions
diff --git a/arch/tile/Kconfig b/arch/tile/Kconfig index 1bb7ad4aeff4..3aa37669ff8c 100644 --- a/arch/tile/Kconfig +++ b/arch/tile/Kconfig @@ -16,11 +16,15 @@ config TILE select GENERIC_PENDING_IRQ if SMP select GENERIC_IRQ_SHOW select HAVE_DEBUG_BUGVERBOSE - select HAVE_SYSCALL_WRAPPERS if TILEGX + select VIRT_TO_BUS select SYS_HYPERVISOR + select ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS select ARCH_HAVE_NMI_SAFE_CMPXCHG select GENERIC_CLOCKEVENTS select MODULES_USE_ELF_RELA + select HAVE_ARCH_TRACEHOOK + select HAVE_SYSCALL_TRACEPOINTS + select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE # FIXME: investigate whether we need/want these options. # select HAVE_IOREMAP_PROT @@ -39,9 +43,6 @@ config MMU config GENERIC_CSUM def_bool y -config SEMAPHORE_SLEEPERS - def_bool y - config HAVE_ARCH_ALLOC_REMAP def_bool y @@ -66,12 +67,6 @@ config HUGETLB_SUPER_PAGES config RWSEM_GENERIC_SPINLOCK def_bool y -# We have a very flat architecture from a migration point of view, -# so save boot time by presetting this (particularly useful on tile-sim). -config DEFAULT_MIGRATION_COST - int - default "10000000" - # We only support gcc 4.4 and above, so this should work. config ARCH_SUPPORTS_OPTIMIZED_INLINING def_bool y @@ -113,14 +108,8 @@ config STRICT_DEVMEM config SMP def_bool y -# Allow checking for compile-time determined overflow errors in -# copy_from_user(). There are still unprovable places in the -# generic code as of 2.6.34, so this option is not really compatible -# with -Werror, which is more useful in general. -config DEBUG_COPY_FROM_USER - def_bool n - config HVC_TILE + depends on TTY select HVC_DRIVER def_bool y @@ -366,11 +355,17 @@ config HARDWALL config KERNEL_PL int "Processor protection level for kernel" range 1 2 - default "1" + default 2 if TILEGX + default 1 if !TILEGX ---help--- - This setting determines the processor protection level the - kernel will be built to run at. Generally you should use - the default value here. + Since MDE 4.2, the Tilera hypervisor runs the kernel + at PL2 by default. If running under an older hypervisor, + or as a KVM guest, you must run at PL1. (The current + hypervisor may also be recompiled with "make HV_PL=2" to + allow it to run a kernel at PL1, but clients running at PL1 + are not expected to be supported indefinitely.) + + If you're not sure, don't change the default. source "arch/tile/gxio/Kconfig" @@ -412,23 +407,12 @@ config TILE_USB Provides USB host adapter support for the built-in EHCI and OHCI interfaces on TILE-Gx chips. -# USB OHCI needs the bounce pool since tilegx will often have more -# than 4GB of memory, but we don't currently use the IOTLB to present -# a 32-bit address to OHCI. So we need to use a bounce pool instead. -config NEED_BOUNCE_POOL - def_bool USB_OHCI_HCD - source "drivers/pci/hotplug/Kconfig" endmenu menu "Executable file formats" -# only elf supported -config KCORE_ELF - def_bool y - depends on PROC_FS - source "fs/Kconfig.binfmt" endmenu |