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| author | Russell King <rmk@dyn-67.arm.linux.org.uk> | 2006-11-30 23:43:51 +0300 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2008-04-19 14:36:48 +0400 |
| commit | 05944d74bc28fffbcce159cb915d0acff82f30a1 (patch) | |
| tree | 6151f1a21d7171542ca84906207030d26f9b792d | |
| parent | 05dda977f2574c3341abef9b74c27d2b362e1e3a (diff) | |
| download | linux-05944d74bc28fffbcce159cb915d0acff82f30a1.tar.xz | |
[ARM] Add initial sparsemem support
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| -rw-r--r-- | arch/arm/Kconfig | 8 | ||||
| -rw-r--r-- | arch/arm/mach-clps711x/Kconfig | 2 | ||||
| -rw-r--r-- | include/asm-arm/memory.h | 3 | ||||
| -rw-r--r-- | include/asm-arm/sparsemem.h | 10 |
4 files changed, 23 insertions, 0 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 4039a133006e..df051bd24ba1 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -422,6 +422,8 @@ config ARCH_SA1100 bool "SA1100-based" select ISA select ARCH_DISCONTIGMEM_ENABLE + select ARCH_SPARSEMEM_ENABLE + select ARCH_SELECT_MEMORY_MODEL select ARCH_MTD_XIP select GENERIC_GPIO select GENERIC_TIME @@ -774,6 +776,12 @@ config ARCH_DISCONTIGMEM_ENABLE or have huge holes in the physical address space for other reasons. See <file:Documentation/vm/numa> for more. +config ARCH_SPARSEMEM_ENABLE + bool + +config ARCH_SELECT_MEMORY_MODEL + bool + config NODES_SHIFT int default "4" if ARCH_LH7A40X diff --git a/arch/arm/mach-clps711x/Kconfig b/arch/arm/mach-clps711x/Kconfig index 0e2b641268ad..dbaae5f746a1 100644 --- a/arch/arm/mach-clps711x/Kconfig +++ b/arch/arm/mach-clps711x/Kconfig @@ -31,6 +31,8 @@ config ARCH_EDB7211 bool "EDB7211" select ISA select ARCH_DISCONTIGMEM_ENABLE + select ARCH_SPARSEMEM_ENABLE + select ARCH_SELECT_MEMORY_MODEL help Say Y here if you intend to run this kernel on a Cirrus Logic EDB-7211 evaluation board. diff --git a/include/asm-arm/memory.h b/include/asm-arm/memory.h index d9bfb39adabf..9ba4d7136e6b 100644 --- a/include/asm-arm/memory.h +++ b/include/asm-arm/memory.h @@ -217,7 +217,10 @@ static inline __deprecated void *bus_to_virt(unsigned long x) #ifndef CONFIG_DISCONTIGMEM #define ARCH_PFN_OFFSET PHYS_PFN_OFFSET + +#ifndef CONFIG_SPARSEMEM #define pfn_valid(pfn) ((pfn) >= PHYS_PFN_OFFSET && (pfn) < (PHYS_PFN_OFFSET + max_mapnr)) +#endif #define virt_to_page(kaddr) pfn_to_page(__pa(kaddr) >> PAGE_SHIFT) #define virt_addr_valid(kaddr) ((unsigned long)(kaddr) >= PAGE_OFFSET && (unsigned long)(kaddr) < (unsigned long)high_memory) diff --git a/include/asm-arm/sparsemem.h b/include/asm-arm/sparsemem.h new file mode 100644 index 000000000000..277158191a0d --- /dev/null +++ b/include/asm-arm/sparsemem.h @@ -0,0 +1,10 @@ +#ifndef ASMARM_SPARSEMEM_H +#define ASMARM_SPARSEMEM_H + +#include <asm/memory.h> + +#define MAX_PHYSADDR_BITS 32 +#define MAX_PHYSMEM_BITS 32 +#define SECTION_SIZE_BITS NODE_MEM_SIZE_BITS + +#endif |