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powerpc/book3e-64: Don't limit paca to 256 MiB

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This limit only makes sense on book3s, and on book3e it can cause
problems with kdump if we don't have any memory under 256 MiB.

Signed-off-by: Scott Wood <scottwood@freescale.com>
This commit is contained in:
Scott Wood 2015-10-06 22:48:17 -05:00
parent eeaab663a0
commit ecc4999f68
1 changed files with 7 additions and 2 deletions
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9
arch/powerpc/kernel/paca.c
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@ -204,14 +204,19 @@ static int __initdata paca_size;
void __init allocate_pacas(void) void __init allocate_pacas(void)
{ {
int cpu, limit; u64 limit;
int cpu;
limit = ppc64_rma_size;
#ifdef CONFIG_PPC_BOOK3S_64
/* /*
* We can't take SLB misses on the paca, and we want to access them * We can't take SLB misses on the paca, and we want to access them
* in real mode, so allocate them within the RMA and also within * in real mode, so allocate them within the RMA and also within
* the first segment. * the first segment.
*/ */
limit = min(0x10000000ULL, ppc64_rma_size); limit = min(0x10000000ULL, limit);
#endif
paca_size = PAGE_ALIGN(sizeof(struct paca_struct) * nr_cpu_ids); paca_size = PAGE_ALIGN(sizeof(struct paca_struct) * nr_cpu_ids);