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authorLinus Torvalds <torvalds@linux-foundation.org>2017-11-16 12:50:35 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2017-11-16 12:50:35 -0800
commit441692aafc1731087bbaf657a8b6059d95c2a6df (patch)
tree9d3dd6d6e882bc9bb69e3389715b720ee9001ead /arch/arm/Kconfig
parent5b0e2cb020085efe202123162502e0b551e49a0e (diff)
parent02196144a0a0ad71fb75bd4a5a4785ab36c3b78e (diff)
Merge branch 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm
Pull ARM updates from Russell King: - add support for ELF fdpic binaries on both MMU and noMMU platforms - linker script cleanups - support for compressed .data section for XIP images - discard memblock arrays when possible - various cleanups - atomic DMA pool updates - better diagnostics of missing/corrupt device tree - export information to allow userspace kexec tool to place images more inteligently, so that the device tree isn't overwritten by the booting kernel - make early_printk more efficient on semihosted systems - noMMU cleanups - SA1111 PCMCIA update in preparation for further cleanups * 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm: (38 commits) ARM: 8719/1: NOMMU: work around maybe-uninitialized warning ARM: 8717/2: debug printch/printascii: translate '\n' to "\r\n" not "\n\r" ARM: 8713/1: NOMMU: Support MPU in XIP configuration ARM: 8712/1: NOMMU: Use more MPU regions to cover memory ARM: 8711/1: V7M: Add support for MPU to M-class ARM: 8710/1: Kconfig: Kill CONFIG_VECTORS_BASE ARM: 8709/1: NOMMU: Disallow MPU for XIP ARM: 8708/1: NOMMU: Rework MPU to be mostly done in C ARM: 8707/1: NOMMU: Update MPU accessors to use cp15 helpers ARM: 8706/1: NOMMU: Move out MPU setup in separate module ARM: 8702/1: head-common.S: Clear lr before jumping to start_kernel() ARM: 8705/1: early_printk: use printascii() rather than printch() ARM: 8703/1: debug.S: move hexbuf to a writable section ARM: add additional table to compressed kernel ARM: decompressor: fix BSS size calculation pcmcia: sa1111: remove special sa1111 mmio accessors pcmcia: sa1111: use sa1111_get_irq() to obtain IRQ resources ARM: better diagnostics with missing/corrupt dtb ARM: 8699/1: dma-mapping: Remove init_dma_coherent_pool_size() ARM: 8698/1: dma-mapping: Mark atomic_pool as __ro_after_init ..
Diffstat (limited to 'arch/arm/Kconfig')
-rw-r--r--arch/arm/Kconfig21
1 files changed, 12 insertions, 9 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index d1346a160760..4f3ee0ef8fa7 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -3,6 +3,7 @@ config ARM
bool
default y
select ARCH_CLOCKSOURCE_DATA
+ select ARCH_DISCARD_MEMBLOCK if !HAVE_ARCH_PFN_VALID
select ARCH_HAS_DEBUG_VIRTUAL
select ARCH_HAS_DEVMEM_IS_ALLOWED
select ARCH_HAS_ELF_RANDOMIZE
@@ -240,15 +241,6 @@ config NEED_RET_TO_USER
config ARCH_MTD_XIP
bool
-config VECTORS_BASE
- hex
- default 0xffff0000 if MMU || CPU_HIGH_VECTOR
- default DRAM_BASE if REMAP_VECTORS_TO_RAM
- default 0x00000000
- help
- The base address of exception vectors. This must be two pages
- in size.
-
config ARM_PATCH_PHYS_VIRT
bool "Patch physical to virtual translations at runtime" if EMBEDDED
default y
@@ -2006,6 +1998,17 @@ config XIP_PHYS_ADDR
be linked for and stored to. This address is dependent on your
own flash usage.
+config XIP_DEFLATED_DATA
+ bool "Store kernel .data section compressed in ROM"
+ depends on XIP_KERNEL
+ select ZLIB_INFLATE
+ help
+ Before the kernel is actually executed, its .data section has to be
+ copied to RAM from ROM. This option allows for storing that data
+ in compressed form and decompressed to RAM rather than merely being
+ copied, saving some precious ROM space. A possible drawback is a
+ slightly longer boot delay.
+
config KEXEC
bool "Kexec system call (EXPERIMENTAL)"
depends on (!SMP || PM_SLEEP_SMP)