diff options
Diffstat (limited to 'arch/powerpc/Kconfig')
| -rw-r--r-- | arch/powerpc/Kconfig | 59 |
1 files changed, 48 insertions, 11 deletions
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index 951e18f5335b..1919634a9b32 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -87,6 +87,10 @@ config ARCH_HAS_ILOG2_U64 bool default y if 64BIT +config ARCH_HAS_CPU_IDLE_WAIT + bool + default y + config GENERIC_HWEIGHT bool default y @@ -117,6 +121,7 @@ config PPC select HAVE_KRETPROBES select HAVE_ARCH_TRACEHOOK select HAVE_MEMBLOCK + select HAVE_MEMBLOCK_NODE_MAP select HAVE_DMA_ATTRS select HAVE_DMA_API_DEBUG select USE_GENERIC_SMP_HELPERS if SMP @@ -132,6 +137,7 @@ config PPC select IRQ_PER_CPU select GENERIC_IRQ_SHOW select GENERIC_IRQ_SHOW_LEVEL + select IRQ_FORCED_THREADING select HAVE_RCU_TABLE_FREE if SMP select HAVE_SYSCALL_TRACEPOINTS select HAVE_BPF_JIT if (PPC64 && NET) @@ -362,8 +368,9 @@ config KEXEC config CRASH_DUMP bool "Build a kdump crash kernel" - depends on PPC64 || 6xx || FSL_BOOKE - select RELOCATABLE if PPC64 || FSL_BOOKE + depends on PPC64 || 6xx || FSL_BOOKE || (44x && !SMP && !PPC_47x) + select RELOCATABLE if PPC64 || 44x + select DYNAMIC_MEMSTART if FSL_BOOKE help Build a kernel suitable for use as a kdump capture kernel. The same kernel binary can be used as production kernel and dump @@ -421,9 +428,6 @@ config ARCH_SPARSEMEM_DEFAULT def_bool y depends on (SMP && PPC_PSERIES) || PPC_PS3 -config ARCH_POPULATES_NODE_MAP - def_bool y - config SYS_SUPPORTS_HUGETLBFS bool @@ -687,6 +691,10 @@ config FSL_LBC controller. Also contains some common code used by drivers for specific local bus peripherals. +config FSL_IFC + bool + depends on FSL_SOC + config FSL_GTM bool depends on PPC_83xx || QUICC_ENGINE || CPM2 @@ -710,6 +718,7 @@ config PCI default PCI_PERMEDIA if !4xx && !CPM2 && !8xx default PCI_QSPAN if !4xx && !CPM2 && 8xx select ARCH_SUPPORTS_MSI + select GENERIC_PCI_IOMAP help Find out whether your system includes a PCI bus. PCI is the name of a bus system, i.e. the way the CPU talks to the other stuff inside @@ -772,6 +781,10 @@ source "drivers/rapidio/Kconfig" endmenu +config NONSTATIC_KERNEL + bool + default n + menu "Advanced setup" depends on PPC32 @@ -821,13 +834,32 @@ config LOWMEM_CAM_NUM int "Number of CAMs to use to map low memory" if LOWMEM_CAM_NUM_BOOL default 3 +config DYNAMIC_MEMSTART + bool "Enable page aligned dynamic load address for kernel (EXPERIMENTAL)" + depends on EXPERIMENTAL && ADVANCED_OPTIONS && FLATMEM && (FSL_BOOKE || 44x) + select NONSTATIC_KERNEL + help + This option enables the kernel to be loaded at any page aligned + physical address. The kernel creates a mapping from KERNELBASE to + the address where the kernel is loaded. The page size here implies + the TLB page size of the mapping for kernel on the particular platform. + Please refer to the init code for finding the TLB page size. + + DYNAMIC_MEMSTART is an easy way of implementing pseudo-RELOCATABLE + kernel image, where the only restriction is the page aligned kernel + load address. When this option is enabled, the compile time physical + address CONFIG_PHYSICAL_START is ignored. + + This option is overridden by CONFIG_RELOCATABLE + config RELOCATABLE bool "Build a relocatable kernel (EXPERIMENTAL)" - depends on EXPERIMENTAL && ADVANCED_OPTIONS && FLATMEM && (FSL_BOOKE || PPC_47x) + depends on EXPERIMENTAL && ADVANCED_OPTIONS && FLATMEM && 44x + select NONSTATIC_KERNEL help This builds a kernel image that is capable of running at the - location the kernel is loaded at (some alignment restrictions may - exist). + location the kernel is loaded at, without any alignment restrictions. + This feature is a superset of DYNAMIC_MEMSTART and hence overrides it. One use is for the kexec on panic case where the recovery kernel must live at a different physical address than the primary @@ -837,7 +869,11 @@ config RELOCATABLE it has been loaded at and the compile time physical addresses CONFIG_PHYSICAL_START is ignored. However CONFIG_PHYSICAL_START setting can still be useful to bootwrappers that need to know the - load location of the kernel (eg. u-boot/mkimage). + load address of the kernel (eg. u-boot/mkimage). + +config RELOCATABLE_PPC32 + def_bool y + depends on PPC32 && RELOCATABLE config PAGE_OFFSET_BOOL bool "Set custom page offset address" @@ -867,7 +903,7 @@ config KERNEL_START_BOOL config KERNEL_START hex "Virtual address of kernel base" if KERNEL_START_BOOL default PAGE_OFFSET if PAGE_OFFSET_BOOL - default "0xc2000000" if CRASH_DUMP && !RELOCATABLE + default "0xc2000000" if CRASH_DUMP && !NONSTATIC_KERNEL default "0xc0000000" config PHYSICAL_START_BOOL @@ -880,7 +916,7 @@ config PHYSICAL_START_BOOL config PHYSICAL_START hex "Physical address where the kernel is loaded" if PHYSICAL_START_BOOL - default "0x02000000" if PPC_STD_MMU && CRASH_DUMP && !RELOCATABLE + default "0x02000000" if PPC_STD_MMU && CRASH_DUMP && !NONSTATIC_KERNEL default "0x00000000" config PHYSICAL_ALIGN @@ -926,6 +962,7 @@ endmenu if PPC64 config RELOCATABLE bool "Build a relocatable kernel" + select NONSTATIC_KERNEL help This builds a kernel image that is capable of running anywhere in the RMA (real memory area) at any 16k-aligned base address. |