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-rw-r--r--arch/arm/mm/Kconfig123
1 files changed, 70 insertions, 53 deletions
diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig
index 101b9681c08c..94186b6c685f 100644
--- a/arch/arm/mm/Kconfig
+++ b/arch/arm/mm/Kconfig
@@ -10,8 +10,8 @@ config CPU_ARM7TDMI
depends on !MMU
select CPU_32v4T
select CPU_ABRT_LV4T
- select CPU_PABRT_LEGACY
select CPU_CACHE_V4
+ select CPU_PABRT_LEGACY
help
A 32-bit RISC microprocessor based on the ARM7 processor core
which has no memory control unit and cache.
@@ -24,11 +24,11 @@ config CPU_ARM720T
bool "Support ARM720T processor" if ARCH_INTEGRATOR
select CPU_32v4T
select CPU_ABRT_LV4T
- select CPU_PABRT_LEGACY
select CPU_CACHE_V4
select CPU_CACHE_VIVT
- select CPU_CP15_MMU
select CPU_COPY_V4WT if MMU
+ select CPU_CP15_MMU
+ select CPU_PABRT_LEGACY
select CPU_TLB_V4WT if MMU
help
A 32-bit RISC processor with 8kByte Cache, Write Buffer and
@@ -43,9 +43,9 @@ config CPU_ARM740T
depends on !MMU
select CPU_32v4T
select CPU_ABRT_LV4T
- select CPU_PABRT_LEGACY
select CPU_CACHE_V3 # although the core is v4t
select CPU_CP15_MPU
+ select CPU_PABRT_LEGACY
help
A 32-bit RISC processor with 8KB cache or 4KB variants,
write buffer and MPU(Protection Unit) built around
@@ -60,8 +60,8 @@ config CPU_ARM9TDMI
depends on !MMU
select CPU_32v4T
select CPU_ABRT_NOMMU
- select CPU_PABRT_LEGACY
select CPU_CACHE_V4
+ select CPU_PABRT_LEGACY
help
A 32-bit RISC microprocessor based on the ARM9 processor core
which has no memory control unit and cache.
@@ -74,11 +74,11 @@ config CPU_ARM920T
bool "Support ARM920T processor" if ARCH_INTEGRATOR
select CPU_32v4T
select CPU_ABRT_EV4T
- select CPU_PABRT_LEGACY
select CPU_CACHE_V4WT
select CPU_CACHE_VIVT
- select CPU_CP15_MMU
select CPU_COPY_V4WB if MMU
+ select CPU_CP15_MMU
+ select CPU_PABRT_LEGACY
select CPU_TLB_V4WBI if MMU
help
The ARM920T is licensed to be produced by numerous vendors,
@@ -92,11 +92,11 @@ config CPU_ARM922T
bool "Support ARM922T processor" if ARCH_INTEGRATOR
select CPU_32v4T
select CPU_ABRT_EV4T
- select CPU_PABRT_LEGACY
select CPU_CACHE_V4WT
select CPU_CACHE_VIVT
- select CPU_CP15_MMU
select CPU_COPY_V4WB if MMU
+ select CPU_CP15_MMU
+ select CPU_PABRT_LEGACY
select CPU_TLB_V4WBI if MMU
help
The ARM922T is a version of the ARM920T, but with smaller
@@ -111,11 +111,11 @@ config CPU_ARM925T
bool "Support ARM925T processor" if ARCH_OMAP1
select CPU_32v4T
select CPU_ABRT_EV4T
- select CPU_PABRT_LEGACY
select CPU_CACHE_V4WT
select CPU_CACHE_VIVT
- select CPU_CP15_MMU
select CPU_COPY_V4WB if MMU
+ select CPU_CP15_MMU
+ select CPU_PABRT_LEGACY
select CPU_TLB_V4WBI if MMU
help
The ARM925T is a mix between the ARM920T and ARM926T, but with
@@ -130,10 +130,10 @@ config CPU_ARM926T
bool "Support ARM926T processor" if ARCH_INTEGRATOR || MACH_REALVIEW_EB
select CPU_32v5
select CPU_ABRT_EV5TJ
- select CPU_PABRT_LEGACY
select CPU_CACHE_VIVT
- select CPU_CP15_MMU
select CPU_COPY_V4WB if MMU
+ select CPU_CP15_MMU
+ select CPU_PABRT_LEGACY
select CPU_TLB_V4WBI if MMU
help
This is a variant of the ARM920. It has slightly different
@@ -148,11 +148,11 @@ config CPU_FA526
bool
select CPU_32v4
select CPU_ABRT_EV4
- select CPU_PABRT_LEGACY
- select CPU_CACHE_VIVT
- select CPU_CP15_MMU
select CPU_CACHE_FA
+ select CPU_CACHE_VIVT
select CPU_COPY_FA if MMU
+ select CPU_CP15_MMU
+ select CPU_PABRT_LEGACY
select CPU_TLB_FA if MMU
help
The FA526 is a version of the ARMv4 compatible processor with
@@ -167,9 +167,9 @@ config CPU_ARM940T
depends on !MMU
select CPU_32v4T
select CPU_ABRT_NOMMU
- select CPU_PABRT_LEGACY
select CPU_CACHE_VIVT
select CPU_CP15_MPU
+ select CPU_PABRT_LEGACY
help
ARM940T is a member of the ARM9TDMI family of general-
purpose microprocessors with MPU and separate 4KB
@@ -185,9 +185,9 @@ config CPU_ARM946E
depends on !MMU
select CPU_32v5
select CPU_ABRT_NOMMU
- select CPU_PABRT_LEGACY
select CPU_CACHE_VIVT
select CPU_CP15_MPU
+ select CPU_PABRT_LEGACY
help
ARM946E-S is a member of the ARM9E-S family of high-
performance, 32-bit system-on-chip processor solutions.
@@ -201,11 +201,11 @@ config CPU_ARM1020
bool "Support ARM1020T (rev 0) processor" if ARCH_INTEGRATOR
select CPU_32v5
select CPU_ABRT_EV4T
- select CPU_PABRT_LEGACY
select CPU_CACHE_V4WT
select CPU_CACHE_VIVT
- select CPU_CP15_MMU
select CPU_COPY_V4WB if MMU
+ select CPU_CP15_MMU
+ select CPU_PABRT_LEGACY
select CPU_TLB_V4WBI if MMU
help
The ARM1020 is the 32K cached version of the ARM10 processor,
@@ -217,25 +217,25 @@ config CPU_ARM1020
# ARM1020E - needs validating
config CPU_ARM1020E
bool "Support ARM1020E processor" if ARCH_INTEGRATOR
+ depends on n
select CPU_32v5
select CPU_ABRT_EV4T
- select CPU_PABRT_LEGACY
select CPU_CACHE_V4WT
select CPU_CACHE_VIVT
- select CPU_CP15_MMU
select CPU_COPY_V4WB if MMU
+ select CPU_CP15_MMU
+ select CPU_PABRT_LEGACY
select CPU_TLB_V4WBI if MMU
- depends on n
# ARM1022E
config CPU_ARM1022
bool "Support ARM1022E processor" if ARCH_INTEGRATOR
select CPU_32v5
select CPU_ABRT_EV4T
- select CPU_PABRT_LEGACY
select CPU_CACHE_VIVT
- select CPU_CP15_MMU
select CPU_COPY_V4WB if MMU # can probably do better
+ select CPU_CP15_MMU
+ select CPU_PABRT_LEGACY
select CPU_TLB_V4WBI if MMU
help
The ARM1022E is an implementation of the ARMv5TE architecture
@@ -250,10 +250,10 @@ config CPU_ARM1026
bool "Support ARM1026EJ-S processor" if ARCH_INTEGRATOR
select CPU_32v5
select CPU_ABRT_EV5T # But need Jazelle, but EV5TJ ignores bit 10
- select CPU_PABRT_LEGACY
select CPU_CACHE_VIVT
- select CPU_CP15_MMU
select CPU_COPY_V4WB if MMU # can probably do better
+ select CPU_CP15_MMU
+ select CPU_PABRT_LEGACY
select CPU_TLB_V4WBI if MMU
help
The ARM1026EJ-S is an implementation of the ARMv5TEJ architecture
@@ -268,11 +268,11 @@ config CPU_SA110
select CPU_32v3 if ARCH_RPC
select CPU_32v4 if !ARCH_RPC
select CPU_ABRT_EV4
- select CPU_PABRT_LEGACY
select CPU_CACHE_V4WB
select CPU_CACHE_VIVT
- select CPU_CP15_MMU
select CPU_COPY_V4WB if MMU
+ select CPU_CP15_MMU
+ select CPU_PABRT_LEGACY
select CPU_TLB_V4WB if MMU
help
The Intel StrongARM(R) SA-110 is a 32-bit microprocessor and
@@ -288,10 +288,10 @@ config CPU_SA1100
bool
select CPU_32v4
select CPU_ABRT_EV4
- select CPU_PABRT_LEGACY
select CPU_CACHE_V4WB
select CPU_CACHE_VIVT
select CPU_CP15_MMU
+ select CPU_PABRT_LEGACY
select CPU_TLB_V4WB if MMU
# XScale
@@ -299,9 +299,9 @@ config CPU_XSCALE
bool
select CPU_32v5
select CPU_ABRT_EV5T
- select CPU_PABRT_LEGACY
select CPU_CACHE_VIVT
select CPU_CP15_MMU
+ select CPU_PABRT_LEGACY
select CPU_TLB_V4WBI if MMU
# XScale Core Version 3
@@ -309,9 +309,9 @@ config CPU_XSC3
bool
select CPU_32v5
select CPU_ABRT_EV5T
- select CPU_PABRT_LEGACY
select CPU_CACHE_VIVT
select CPU_CP15_MMU
+ select CPU_PABRT_LEGACY
select CPU_TLB_V4WBI if MMU
select IO_36
@@ -320,21 +320,21 @@ config CPU_MOHAWK
bool
select CPU_32v5
select CPU_ABRT_EV5T
- select CPU_PABRT_LEGACY
select CPU_CACHE_VIVT
+ select CPU_COPY_V4WB if MMU
select CPU_CP15_MMU
+ select CPU_PABRT_LEGACY
select CPU_TLB_V4WBI if MMU
- select CPU_COPY_V4WB if MMU
# Feroceon
config CPU_FEROCEON
bool
select CPU_32v5
select CPU_ABRT_EV5T
- select CPU_PABRT_LEGACY
select CPU_CACHE_VIVT
- select CPU_CP15_MMU
select CPU_COPY_FEROCEON if MMU
+ select CPU_CP15_MMU
+ select CPU_PABRT_LEGACY
select CPU_TLB_FEROCEON if MMU
config CPU_FEROCEON_OLD_ID
@@ -349,20 +349,20 @@ config CPU_FEROCEON_OLD_ID
# Marvell PJ4
config CPU_PJ4
bool
- select CPU_V7
select ARM_THUMBEE
+ select CPU_V7
# ARMv6
config CPU_V6
bool "Support ARM V6 processor" if ARCH_INTEGRATOR || MACH_REALVIEW_EB || MACH_REALVIEW_PBX
select CPU_32v6
select CPU_ABRT_EV6
- select CPU_PABRT_V6
select CPU_CACHE_V6
select CPU_CACHE_VIPT
+ select CPU_COPY_V6 if MMU
select CPU_CP15_MMU
select CPU_HAS_ASID if MMU
- select CPU_COPY_V6 if MMU
+ select CPU_PABRT_V6
select CPU_TLB_V6 if MMU
# ARMv6k
@@ -371,12 +371,12 @@ config CPU_V6K
select CPU_32v6
select CPU_32v6K
select CPU_ABRT_EV6
- select CPU_PABRT_V6
select CPU_CACHE_V6
select CPU_CACHE_VIPT
+ select CPU_COPY_V6 if MMU
select CPU_CP15_MMU
select CPU_HAS_ASID if MMU
- select CPU_COPY_V6 if MMU
+ select CPU_PABRT_V6
select CPU_TLB_V6 if MMU
# ARMv7
@@ -385,44 +385,44 @@ config CPU_V7
select CPU_32v6K
select CPU_32v7
select CPU_ABRT_EV7
- select CPU_PABRT_V7
select CPU_CACHE_V7
select CPU_CACHE_VIPT
+ select CPU_COPY_V6 if MMU
select CPU_CP15_MMU
select CPU_HAS_ASID if MMU
- select CPU_COPY_V6 if MMU
+ select CPU_PABRT_V7
select CPU_TLB_V7 if MMU
# Figure out what processor architecture version we should be using.
# This defines the compiler instruction set which depends on the machine type.
config CPU_32v3
bool
- select TLS_REG_EMUL if SMP || !MMU
- select NEEDS_SYSCALL_FOR_CMPXCHG if SMP
select CPU_USE_DOMAINS if MMU
+ select NEEDS_SYSCALL_FOR_CMPXCHG if SMP
+ select TLS_REG_EMUL if SMP || !MMU
config CPU_32v4
bool
- select TLS_REG_EMUL if SMP || !MMU
- select NEEDS_SYSCALL_FOR_CMPXCHG if SMP
select CPU_USE_DOMAINS if MMU
+ select NEEDS_SYSCALL_FOR_CMPXCHG if SMP
+ select TLS_REG_EMUL if SMP || !MMU
config CPU_32v4T
bool
- select TLS_REG_EMUL if SMP || !MMU
- select NEEDS_SYSCALL_FOR_CMPXCHG if SMP
select CPU_USE_DOMAINS if MMU
+ select NEEDS_SYSCALL_FOR_CMPXCHG if SMP
+ select TLS_REG_EMUL if SMP || !MMU
config CPU_32v5
bool
- select TLS_REG_EMUL if SMP || !MMU
- select NEEDS_SYSCALL_FOR_CMPXCHG if SMP
select CPU_USE_DOMAINS if MMU
+ select NEEDS_SYSCALL_FOR_CMPXCHG if SMP
+ select TLS_REG_EMUL if SMP || !MMU
config CPU_32v6
bool
- select TLS_REG_EMUL if !CPU_32v6K && !MMU
select CPU_USE_DOMAINS if CPU_V6 && MMU
+ select TLS_REG_EMUL if !CPU_32v6K && !MMU
config CPU_32v6K
bool
@@ -624,11 +624,28 @@ config ARM_THUMBEE
Say Y here if you have a CPU with the ThumbEE extension and code to
make use of it. Say N for code that can run on CPUs without ThumbEE.
+config ARM_VIRT_EXT
+ bool "Native support for the ARM Virtualization Extensions"
+ depends on MMU && CPU_V7
+ help
+ Enable the kernel to make use of the ARM Virtualization
+ Extensions to install hypervisors without run-time firmware
+ assistance.
+
+ A compliant bootloader is required in order to make maximum
+ use of this feature. Refer to Documentation/arm/Booting for
+ details.
+
+ It is safe to enable this option even if the kernel may not be
+ booted in HYP mode, may not have support for the
+ virtualization extensions, or may be booted with a
+ non-compliant bootloader.
+
config SWP_EMULATE
bool "Emulate SWP/SWPB instructions"
depends on !CPU_USE_DOMAINS && CPU_V7
- select HAVE_PROC_CPU if PROC_FS
default y if SMP
+ select HAVE_PROC_CPU if PROC_FS
help
ARMv6 architecture deprecates use of the SWP/SWPB instructions.
ARMv7 multiprocessing extensions introduce the ability to disable