diff options
Diffstat (limited to 'arch/mips/Kconfig')
| -rw-r--r-- | arch/mips/Kconfig | 39 |
1 files changed, 37 insertions, 2 deletions
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig index b018062b9d3e..1c971be1b985 100644 --- a/arch/mips/Kconfig +++ b/arch/mips/Kconfig @@ -415,6 +415,7 @@ config MIPS_MALTA select SYS_HAS_CPU_MIPS32_R1 select SYS_HAS_CPU_MIPS32_R2 select SYS_HAS_CPU_MIPS32_R3_5 + select SYS_HAS_CPU_MIPS32_R5 select SYS_HAS_CPU_MIPS32_R6 select SYS_HAS_CPU_MIPS64_R1 select SYS_HAS_CPU_MIPS64_R2 @@ -424,6 +425,7 @@ config MIPS_MALTA select SYS_SUPPORTS_32BIT_KERNEL select SYS_SUPPORTS_64BIT_KERNEL select SYS_SUPPORTS_BIG_ENDIAN + select SYS_SUPPORTS_HIGHMEM select SYS_SUPPORTS_LITTLE_ENDIAN select SYS_SUPPORTS_MICROMIPS select SYS_SUPPORTS_MIPS_CMP @@ -1638,6 +1640,33 @@ config CPU_MIPS32_3_5_EVA One of its primary benefits is an increase in the maximum size of lowmem (up to 3GB). If unsure, say 'N' here. +config CPU_MIPS32_R5_FEATURES + bool "MIPS32 Release 5 Features" + depends on SYS_HAS_CPU_MIPS32_R5 + depends on CPU_MIPS32_R2 + help + Choose this option to build a kernel for release 2 or later of the + MIPS32 architecture including features from release 5 such as + support for Extended Physical Addressing (XPA). + +config CPU_MIPS32_R5_XPA + bool "Extended Physical Addressing (XPA)" + depends on CPU_MIPS32_R5_FEATURES + depends on !EVA + depends on !PAGE_SIZE_4KB + depends on SYS_SUPPORTS_HIGHMEM + select XPA + select HIGHMEM + select ARCH_PHYS_ADDR_T_64BIT + default n + help + Choose this option if you want to enable the Extended Physical + Addressing (XPA) on your MIPS32 core (such as P5600 series). The + benefit is to increase physical addressing equal to or greater + than 40 bits. Note that this has the side effect of turning on + 64-bit addressing which in turn makes the PTEs 64-bit in size. + If unsure, say 'N' here. + if CPU_LOONGSON2F config CPU_NOP_WORKAROUNDS bool @@ -1741,6 +1770,9 @@ config SYS_HAS_CPU_MIPS32_R2 config SYS_HAS_CPU_MIPS32_R3_5 bool +config SYS_HAS_CPU_MIPS32_R5 + bool + config SYS_HAS_CPU_MIPS32_R6 bool @@ -1878,6 +1910,9 @@ config CPU_MIPSR6 config EVA bool +config XPA + bool + config SYS_SUPPORTS_32BIT_KERNEL bool config SYS_SUPPORTS_64BIT_KERNEL @@ -2114,7 +2149,7 @@ config MIPSR2_TO_R6_EMULATOR help Choose this option if you want to run non-R6 MIPS userland code. Even if you say 'Y' here, the emulator will still be disabled by - default. You can enable it using the 'mipsr2emul' kernel option. + default. You can enable it using the 'mipsr2emu' kernel option. The only reason this is a build-time option is to save ~14K from the final kernel image. comment "MIPS R2-to-R6 emulator is only available for UP kernels" @@ -2184,7 +2219,7 @@ config MIPS_CMP config MIPS_CPS bool "MIPS Coherent Processing System support" - depends on SYS_SUPPORTS_MIPS_CPS + depends on SYS_SUPPORTS_MIPS_CPS && !64BIT select MIPS_CM select MIPS_CPC select MIPS_CPS_PM if HOTPLUG_CPU |