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| author | Anton Blanchard <anton@samba.org> | 2014-06-04 17:52:42 +1000 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2014-06-05 13:20:40 +1000 |
| commit | 6d97d7a28faf19199da12f2512cc7d37dd373cc0 (patch) | |
| tree | b2ac2489e266447524ac31a64837f838cf8fce18 /arch/powerpc | |
| parent | a5d862576a64cb3e0c22dc9cc2170e4d750714f9 (diff) | |
| download | op-kernel-dev-6d97d7a28faf19199da12f2512cc7d37dd373cc0.zip op-kernel-dev-6d97d7a28faf19199da12f2512cc7d37dd373cc0.tar.gz | |
powerpc/powernv: Set memory_block_size_bytes to 256MB
powerpc sets a low SECTION_SIZE_BITS to accomodate small pseries
boxes. We default to 16MB memory blocks, and boxes with a lot
of memory end up with enormous numbers of sysfs memory nodes.
Set a more reasonable default for powernv of 256MB.
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc')
| -rw-r--r-- | arch/powerpc/platforms/powernv/setup.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/powernv/setup.c b/arch/powerpc/platforms/powernv/setup.c index 865aab4..8c16a5f 100644 --- a/arch/powerpc/platforms/powernv/setup.c +++ b/arch/powerpc/platforms/powernv/setup.c @@ -244,6 +244,13 @@ static void pnv_kexec_cpu_down(int crash_shutdown, int secondary) } #endif /* CONFIG_KEXEC */ +#ifdef CONFIG_MEMORY_HOTPLUG_SPARSE +static unsigned long pnv_memory_block_size(void) +{ + return 256UL * 1024 * 1024; +} +#endif + static void __init pnv_setup_machdep_opal(void) { ppc_md.get_boot_time = opal_get_boot_time; @@ -326,4 +333,7 @@ define_machine(powernv) { #ifdef CONFIG_KEXEC .kexec_cpu_down = pnv_kexec_cpu_down, #endif +#ifdef CONFIG_MEMORY_HOTPLUG_SPARSE + .memory_block_size = pnv_memory_block_size, +#endif }; |
