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powerpc: Change memory_limit from phys_addr_t to unsigned long long

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There are some device-tree nodes, whose values are of type phys_addr_t.
The phys_addr_t is variable sized based on the CONFIG_PHSY_T_64BIT.

Change these to a fixed unsigned long long for consistency.

This patch does the change only for memory_limit.

The following is a list of such variables which need the change:

 1) kernel_end, crashk_size - in arch/powerpc/kernel/machine_kexec.c

 2) (struct resource *)crashk_res.start - We could export a local static
    variable from machine_kexec.c.

Changing the above values might break the kexec-tools. So, I will
fix kexec-tools first to handle the different sized values and then change
 the above.

Suggested-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Suzuki K. Poulose <suzuki@in.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This commit is contained in:
Suzuki Poulose
2012-08-21 01:42:33 +00:00
committed by Benjamin Herrenschmidt
parent 0090e02b94
commit a84fcd4687
5 changed files with 6 additions and 7 deletions
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2
arch/powerpc/include/asm/setup.h
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@@ -9,7 +9,7 @@ extern void ppc_printk_progress(char *s, unsigned short hex);
extern unsigned int rtas_data;
extern int mem_init_done; /* set on boot once kmalloc can be called */
extern int init_bootmem_done; /* set once bootmem is available */
extern phys_addr_t memory_limit;
extern unsigned long long memory_limit;
extern unsigned long klimit;
extern void *zalloc_maybe_bootmem(size_t size, gfp_t mask);