File crash-SLE15-SP1-With-Linux-4.19-rc1-up-MAX_PHYSMEM_BITS-to-128TB.patch of Package crash.11845

From 599a6579aa916df7800f8e889d68e4287e4520dd Mon Sep 17 00:00:00 2001
From: Dave Anderson <anderson@redhat.com>
Date: Thu, 27 Sep 2018 14:14:31 -0400
Subject: [PATCH] With Linux 4.19-rc1 commit
 7d4340bb92a9df78e6e28152f3dd89d9bd82146b, titled "powerpc/mm: Increase
 MAX_PHYSMEM_BITS to 128TB with SPARSEMEM_VMEMMAP config", the PPC64
 MAX_PHYSMEM_BITS value has been bumped up to 47.  The appropriate update has
 been made in this patch. (hbathini@linux.ibm.com)

[note: apply on 4.12+ for SLE 15 SP1 - incompatible with SLE 15 SP0]

---
 defs.h  | 1 +
 ppc64.c | 5 ++++-
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/defs.h b/defs.h
index 80c61ef94f3d..5b64bb7bb629 100644
--- a/defs.h
+++ b/defs.h
@@ -4073,6 +4073,7 @@ struct efi_memory_desc_t {
 #define _SECTION_SIZE_BITS	24
 #define _MAX_PHYSMEM_BITS	44
 #define _MAX_PHYSMEM_BITS_3_7   46
+#define _MAX_PHYSMEM_BITS_4_19  47
 
 #endif /* PPC64 */
 
diff --git a/ppc64.c b/ppc64.c
index 8badcde3ca76..ee2f76f198fb 100644
--- a/ppc64.c
+++ b/ppc64.c
@@ -554,7 +554,10 @@ ppc64_init(int when)
 			ppc64_vmemmap_init();
 
 		machdep->section_size_bits = _SECTION_SIZE_BITS;
-		if (THIS_KERNEL_VERSION >= LINUX(3,7,0))
+		if ((machdep->flags & VMEMMAP) &&
+		    (THIS_KERNEL_VERSION >= LINUX(4,12,0))) /* SLE15 SP1 */
+			machdep->max_physmem_bits = _MAX_PHYSMEM_BITS_4_19;
+		else if (THIS_KERNEL_VERSION >= LINUX(3,7,0))
 			machdep->max_physmem_bits = _MAX_PHYSMEM_BITS_3_7;
 		else
 			machdep->max_physmem_bits = _MAX_PHYSMEM_BITS;
-- 
2.19.2
openSUSE Build Service is sponsored by