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linux/arch/powerpc/include/asm/sparsemem.h

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[PATCH] powerpc: Merge (move) numnodes.h and sparsemem.h The ppc64 versions of numnodes.h and sparsemem.h can be safely moved to asm-powerpc with no changes apart from changing the #define to the standard _ASM_POWERPC_ form. There are no ppc32 versions of these files, because they only have any effect if CONFIG_SPARSEMEM is enabled, which it never can be on ppc32. Built and booted on pSeries (POWER5), built for 32-bit powermac. Signed-off-by: David Gibson <dwg@au1.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-11-01 20:48:36 -07:00
#ifndef _ASM_POWERPC_SPARSEMEM_H
#define _ASM_POWERPC_SPARSEMEM_H 1
[PATCH] powerpc: sanitize header files for user space includes include/asm-ppc/ had #ifdef __KERNEL__ in all header files that are not meant for use by user space, include/asm-powerpc does not have this yet. This patch gets us a lot closer there. There are a few cases where I was not sure, so I left them out. I have verified that no CONFIG_* symbols are used outside of __KERNEL__ any more and that there are no obvious compile errors when including any of the headers in user space libraries. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-12-16 14:43:46 -07:00
#ifdef __KERNEL__
[PATCH] ppc64: sparsemem memory model Provide the architecture specific implementation for SPARSEMEM for PPC64 systems. Signed-off-by: Andy Whitcroft <apw@shadowen.org> Signed-off-by: Dave Hansen <haveblue@us.ibm.com> Signed-off-by: Mike Kravetz <kravetz@us.ibm.com> (in part) Signed-off-by: Martin Bligh <mbligh@aracnet.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-23 00:08:03 -07:00
#ifdef CONFIG_SPARSEMEM
/*
* SECTION_SIZE_BITS 2^N: how big each section will be
* MAX_PHYSADDR_BITS 2^N: how much physical address space we have
* MAX_PHYSMEM_BITS 2^N: how much memory we can have in that space
*/
#define SECTION_SIZE_BITS 24
[POWERPC] ps3: add lpar addressing Adds some needed bits for a config option PS3_USE_LPAR_ADDR that disables the PS3 lpar address translation mechanism. This is a currently needed workaround for limitations in the design of the generic cell spu support. Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com> Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
2006-11-22 16:46:57 -07:00
[PATCH] ppc64: Increase sparsemem defaults The definitions in sparsemem.h arent sufficient. We currently sell machines with 2TB of RAM, and in order to give us room for a few years growth lets set it to 16TB. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-11-10 21:02:03 -07:00
#define MAX_PHYSADDR_BITS 44
#define MAX_PHYSMEM_BITS 44
[PATCH] ppc64: sparsemem memory model Provide the architecture specific implementation for SPARSEMEM for PPC64 systems. Signed-off-by: Andy Whitcroft <apw@shadowen.org> Signed-off-by: Dave Hansen <haveblue@us.ibm.com> Signed-off-by: Mike Kravetz <kravetz@us.ibm.com> (in part) Signed-off-by: Martin Bligh <mbligh@aracnet.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-23 00:08:03 -07:00
powerpc: Fix building of arch/powerpc/mm/mem.o when MEMORY_HOTPLUG=y and SPARSEMEM=n Currently the kernel fails to build with the above config options with: CC arch/powerpc/mm/mem.o arch/powerpc/mm/mem.c: In function 'arch_add_memory': arch/powerpc/mm/mem.c:130: error: implicit declaration of function 'create_section_mapping' This explicitly includes asm/sparsemem.h in arch/powerpc/mm/mem.c and moves the guards in include/asm-powerpc/sparsemem.h to protect the SPARSEMEM specific portions only. Signed-off-by: Tony Breeds <tony@bakeyournoodle.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-06-30 18:30:06 -07:00
#endif /* CONFIG_SPARSEMEM */
[PATCH] revised Memory Add Fixes for ppc64 Add the create_section_mapping() routine to create hptes for memory sections dynamically added after system boot. Signed-off-by: Mike Kravetz <kravetz@us.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-11-07 17:25:48 -07:00
#ifdef CONFIG_MEMORY_HOTPLUG
powerpc: Fix oops when echoing bad values to /sys/devices/system/memory/probe If we echo an address the hypervisor doesn't like to /sys/devices/system/memory/probe we oops the box: # echo 0x10000000000 > /sys/devices/system/memory/probe kernel BUG at arch/powerpc/mm/hash_utils_64.c:541! The backtrace is: create_section_mapping arch_add_memory add_memory memory_probe_store sysdev_class_store sysfs_write_file vfs_write SyS_write In create_section_mapping we BUG if htab_bolt_mapping returned an error. A better approach is to return an error which will propagate back to userspace. Rerunning the test with this patch applied: # echo 0x10000000000 > /sys/devices/system/memory/probe -bash: echo: write error: Invalid argument Signed-off-by: Anton Blanchard <anton@samba.org> Cc: stable@kernel.org Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2011-08-10 13:44:24 -07:00
extern int create_section_mapping(unsigned long start, unsigned long end);
[POWERPC] Add error return from htab_remove_mapping() If the platform doesn't support hpte_removebolted(), gracefully return failure rather than success. Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-03-27 17:37:21 -07:00
extern int remove_section_mapping(unsigned long start, unsigned long end);
[PATCH] powerpc: numa placement for dynamically added memory This places dynamically added memory within the appropriate numa node. A new routine hot_add_scn_to_nid() replicates most of the memory scanning code in parse_numa_properties(). Signed-off-by: Mike Kravetz <kravetz@us.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-12-05 13:06:42 -07:00
#ifdef CONFIG_NUMA
extern int hot_add_scn_to_nid(unsigned long scn_addr);
#else
static inline int hot_add_scn_to_nid(unsigned long scn_addr)
{
return 0;
}
#endif /* CONFIG_NUMA */
[PATCH] revised Memory Add Fixes for ppc64 Add the create_section_mapping() routine to create hptes for memory sections dynamically added after system boot. Signed-off-by: Mike Kravetz <kravetz@us.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-11-07 17:25:48 -07:00
#endif /* CONFIG_MEMORY_HOTPLUG */
[PATCH] powerpc: sanitize header files for user space includes include/asm-ppc/ had #ifdef __KERNEL__ in all header files that are not meant for use by user space, include/asm-powerpc does not have this yet. This patch gets us a lot closer there. There are a few cases where I was not sure, so I left them out. I have verified that no CONFIG_* symbols are used outside of __KERNEL__ any more and that there are no obvious compile errors when including any of the headers in user space libraries. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-12-16 14:43:46 -07:00
#endif /* __KERNEL__ */
[PATCH] powerpc: Merge (move) numnodes.h and sparsemem.h The ppc64 versions of numnodes.h and sparsemem.h can be safely moved to asm-powerpc with no changes apart from changing the #define to the standard _ASM_POWERPC_ form. There are no ppc32 versions of these files, because they only have any effect if CONFIG_SPARSEMEM is enabled, which it never can be on ppc32. Built and booted on pSeries (POWER5), built for 32-bit powermac. Signed-off-by: David Gibson <dwg@au1.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-11-01 20:48:36 -07:00
#endif /* _ASM_POWERPC_SPARSEMEM_H */
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