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authorRodrigo Vivi <rodrigo.vivi@intel.com>2017-11-14 07:43:00 -0800
committerRodrigo Vivi <rodrigo.vivi@intel.com>2017-11-14 07:43:00 -0800
commit176d5325d1a7d088e96cfef898fa7d3a622a6903 (patch)
treef12c24b72202e032114aef576f53deac9f595646 /arch/powerpc/platforms/powernv/setup.c
parent70a84f3c6075031dbf004a1610ca2471f4c528aa (diff)
parentf150891fd9878ef0d9197c4e8451ce67c3bdd014 (diff)
Merge airlied/drm-next into drm-intel-next-queued
Catchup with upstream. Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Diffstat (limited to 'arch/powerpc/platforms/powernv/setup.c')
-rw-r--r--arch/powerpc/platforms/powernv/setup.c10
1 files changed, 9 insertions, 1 deletions
diff --git a/arch/powerpc/platforms/powernv/setup.c b/arch/powerpc/platforms/powernv/setup.c
index 897aa1400eb8..bbb73aa0eb8f 100644
--- a/arch/powerpc/platforms/powernv/setup.c
+++ b/arch/powerpc/platforms/powernv/setup.c
@@ -272,7 +272,15 @@ static void pnv_kexec_cpu_down(int crash_shutdown, int secondary)
#ifdef CONFIG_MEMORY_HOTPLUG_SPARSE
static unsigned long pnv_memory_block_size(void)
{
- return 256UL * 1024 * 1024;
+ /*
+ * We map the kernel linear region with 1GB large pages on radix. For
+ * memory hot unplug to work our memory block size must be at least
+ * this size.
+ */
+ if (radix_enabled())
+ return 1UL * 1024 * 1024 * 1024;
+ else
+ return 256UL * 1024 * 1024;
}
#endif