2020-04-21 13:11:00 +00:00
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From 599a6579aa916df7800f8e889d68e4287e4520dd Mon Sep 17 00:00:00 2001
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2020-04-21 14:13:25 +00:00
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From: Hari Bathini <hbathini@linux.ibm.com>
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Date: Thu, 27 Sep 2018 02:06:49 +0530
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Subject: ppc64: increase MAX_PHYSMEM_BITS to 128TB
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2020-04-21 17:47:19 +00:00
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Upstream: no, adapts the below upstream commit for SLE15 SP1
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2020-04-21 14:13:25 +00:00
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Git-commit: 599a6579aa916df7800f8e889d68e4287e4520dd
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With Linux 4.19-rc1 commit 7d4340bb92a9df78e6e28152f3dd89d9bd82146b,
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titled "powerpc/mm: Increase MAX_PHYSMEM_BITS to 128TB with
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SPARSEMEM_VMEMMAP config", the PPC64 MAX_PHYSMEM_BITS value has been
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bumped up to 47. The appropriate update has been made in this patch.
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(hbathini@linux.ibm.com)
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2020-04-21 13:11:00 +00:00
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[note: apply on 4.12+ for SLE 15 SP1 - incompatible with SLE 15 SP0]
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---
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Index: crash-7.2.8/defs.h
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===================================================================
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--- crash-7.2.8.orig/defs.h
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+++ crash-7.2.8/defs.h
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@@ -6896,6 +6896,9 @@ extern struct lkcd_environment *lkcd;
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#define is_SLES9() \
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((THIS_KERNEL_VERSION == LINUX(2,6,5)) && kt->is_suse_kernel)
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+#define is_SLE15SP1() \
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+ ((THIS_KERNEL_VERSION >= LINUX(4,12,0)) && kt->is_suse_kernel)
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+
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/*
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* gdb_interface.c
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*/
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Index: crash-7.2.8/ppc64.c
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===================================================================
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--- crash-7.2.8.orig/ppc64.c
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+++ crash-7.2.8/ppc64.c
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@@ -244,9 +244,14 @@ static int set_ppc64_max_physmem_bits(vo
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*/
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machdep->max_physmem_bits = _MAX_PHYSMEM_BITS_4_20;
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} else if ((machdep->flags & VMEMMAP) &&
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- ((THIS_KERNEL_VERSION >= LINUX(4,19,0)) || is_RHEL8())) {
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- /* SPARSEMEM_VMEMMAP & v4.19 kernel or later, or RHEL8 */
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- machdep->max_physmem_bits = _MAX_PHYSMEM_BITS_4_19;
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+ ((THIS_KERNEL_VERSION >= LINUX(4,19,0)) ||
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+ is_RHEL8() ||
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+ is_SLE15SP1())) {
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+ /*
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+ * SPARSEMEM_VMEMMAP & v4.19 kernel or later,
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+ * or RHEL8 or SLE-15-SP1
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+ */
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+ machdep->max_physmem_bits = _MAX_PHYSMEM_BITS_4_19;
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} else if (THIS_KERNEL_VERSION >= LINUX(3,7,0))
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machdep->max_physmem_bits = _MAX_PHYSMEM_BITS_3_7;
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else
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