[SRU][N:gke][PATCH 006/106] s390/pgtable: define PFN_PTE_SHIFT

[Tim Whisonant]

From: David Hildenbrand <david at redhat.com>

BugLink: https://bugs.launchpad.net/bugs/2059316
BugLink: https://bugs.launchpad.net/bugs/2117098

We want to make use of pte_next_pfn() outside of set_ptes().  Let's simply
define PFN_PTE_SHIFT, required by pte_next_pfn().

Link: https://lkml.kernel.org/r/20240129124649.189745-7-david@redhat.com
Signed-off-by: David Hildenbrand <david at redhat.com>
Tested-by: Ryan Roberts <ryan.roberts at arm.com>
Reviewed-by: Mike Rapoport (IBM) <rppt at kernel.org>
Cc: Albert Ou <aou at eecs.berkeley.edu>
Cc: Alexander Gordeev <agordeev at linux.ibm.com>
Cc: Alexandre Ghiti <alexghiti at rivosinc.com>
Cc: Aneesh Kumar K.V <aneesh.kumar at kernel.org>
Cc: Catalin Marinas <catalin.marinas at arm.com>
Cc: Christian Borntraeger <borntraeger at linux.ibm.com>
Cc: Christophe Leroy <christophe.leroy at csgroup.eu>
Cc: David S. Miller <davem at davemloft.net>
Cc: Dinh Nguyen <dinguyen at kernel.org>
Cc: Gerald Schaefer <gerald.schaefer at linux.ibm.com>
Cc: Heiko Carstens <hca at linux.ibm.com>
Cc: Matthew Wilcox <willy at infradead.org>
Cc: Michael Ellerman <mpe at ellerman.id.au>
Cc: Naveen N. Rao <naveen.n.rao at linux.ibm.com>
Cc: Nicholas Piggin <npiggin at gmail.com>
Cc: Palmer Dabbelt <palmer at dabbelt.com>
Cc: Paul Walmsley <paul.walmsley at sifive.com>
Cc: Russell King (Oracle) <linux at armlinux.org.uk>
Cc: Sven Schnelle <svens at linux.ibm.com>
Cc: Vasily Gorbik <gor at linux.ibm.com>
Cc: Will Deacon <will at kernel.org>
Signed-off-by: Andrew Morton <akpm at linux-foundation.org>
(cherry picked from commit 4555ac8b3c16f67f74c04ff71ce8c4a8fcee973a)
Signed-off-by: dann frazier <dann.frazier at canonical.com>
Acked-by: Brad Figg <bfigg at nvidia.com>
Acked-by: Noah Wager <noah.wager at canonical.com>
Acked-by: Jacob Martin <jacob.martin at canonical.com>
Signed-off-by: Brad Figg <bfigg at nvidia.com>
Signed-off-by: Tim Whisonant <tim.whisonant at canonical.com>
---
 arch/s390/include/asm/pgtable.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/s390/include/asm/pgtable.h b/arch/s390/include/asm/pgtable.h
index e74200b1b895a..2bbb4b653c6b6 100644
--- a/arch/s390/include/asm/pgtable.h
+++ b/arch/s390/include/asm/pgtable.h
@@ -1326,6 +1326,8 @@ pgprot_t pgprot_writecombine(pgprot_t prot);
 #define pgprot_writethrough	pgprot_writethrough
 pgprot_t pgprot_writethrough(pgprot_t prot);
 
+#define PFN_PTE_SHIFT		PAGE_SHIFT
+
 /*
  * Set multiple PTEs to consecutive pages with a single call.  All PTEs
  * are within the same folio, PMD and VMA.
-- 
2.43.0