s390/pgtable: define PFN_PTE_SHIFT

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@redhat.com>
Tested-by: Ryan Roberts <ryan.roberts@arm.com>
Reviewed-by: Mike Rapoport (IBM) <rppt@kernel.org>
Cc: Albert Ou <aou@eecs.berkeley.edu>
Cc: Alexander Gordeev <agordeev@linux.ibm.com>
Cc: Alexandre Ghiti <alexghiti@rivosinc.com>
Cc: Aneesh Kumar K.V <aneesh.kumar@kernel.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Christian Borntraeger <borntraeger@linux.ibm.com>
Cc: Christophe Leroy <christophe.leroy@csgroup.eu>
Cc: David S. Miller <davem@davemloft.net>
Cc: Dinh Nguyen <dinguyen@kernel.org>
Cc: Gerald Schaefer <gerald.schaefer@linux.ibm.com>
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Naveen N. Rao <naveen.n.rao@linux.ibm.com>
Cc: Nicholas Piggin <npiggin@gmail.com>
Cc: Palmer Dabbelt <palmer@dabbelt.com>
Cc: Paul Walmsley <paul.walmsley@sifive.com>
Cc: Russell King (Oracle) <linux@armlinux.org.uk>
Cc: Sven Schnelle <svens@linux.ibm.com>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
David Hildenbrand 2024-01-29 13:46:40 +01:00 committed by Andrew Morton
parent 57c254b2fb
commit 4555ac8b3c

View File

@ -1316,6 +1316,8 @@ 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.