[PATCH 0/3] mm/hugetlb: Add some new arch enabling macros

* [PATCH 0/3] mm/hugetlb: Add some new arch enabling macros
@ 2020-04-14 11:44 Anshuman Khandual
  2020-04-14 11:44 ` [PATCH 1/3] arm64/mm: Drop __HAVE_ARCH_HUGE_PTEP_GET Anshuman Khandual
                   ` (2 more replies)
  0 siblings, 3 replies; 9+ messages in thread
From: Anshuman Khandual @ 2020-04-14 11:44 UTC (permalink / raw)
  To: linux-mm
  Cc: Anshuman Khandual, Russell King, Catalin Marinas, Will Deacon,
	Tony Luck, Fenghua Yu, Thomas Bogendoerfer, James E.J. Bottomley,
	Helge Deller, Benjamin Herrenschmidt, Paul Mackerras,
	Michael Ellerman, Paul Walmsley, Palmer Dabbelt, Heiko Carstens,
	Vasily Gorbik, Christian Borntraeger, Yoshinori Sato,
	Rich Felker, David S. Miller, Thomas Gleixner, Ingo Molnar,
	Borislav Petkov, H. Peter Anvin, Mike Kravetz, x86,
	linux-arm-kernel, linux-ia64, linux-mips, linux-parisc,
	linuxppc-dev, linux-riscv, linux-s390, linux-sh, sparclinux,
	linux-arch, linux-kernel

This series adds two macros which platforms can enable to override generic
fallback definitions. Before that it drops __HAVE_ARCH_HUGE_PTEP_GET from
arm64 platform.

1. HAVE_ARCH_IS_HUGEPAGE_ONLY_RANGE - is_hugepage_only_range()
2. HAVE_ARCH_CLEAR_HUGEPAGE_FLAGS   - arch_clear_hugepage_flags()

This has been boot tested on arm64 and x86 platforms but built tested on
some more platforms including the changed ones here. This series applies
on v5.7-rc1. After this arm (32 bit) remains the sole platform defining
it's own huge_ptep_get() via __HAVE_ARCH_HUGE_PTEP_GET.

Cc: Russell King <linux@armlinux.org.uk>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>
Cc: Helge Deller <deller@gmx.de>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Paul Walmsley <paul.walmsley@sifive.com>
Cc: Palmer Dabbelt <palmer@dabbelt.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Cc: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Rich Felker <dalias@libc.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Cc: x86@kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-ia64@vger.kernel.org
Cc: linux-mips@vger.kernel.org
Cc: linux-parisc@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: linux-riscv@lists.infradead.org
Cc: linux-s390@vger.kernel.org
Cc: linux-sh@vger.kernel.org
Cc: sparclinux@vger.kernel.org
Cc: linux-mm@kvack.org
Cc: linux-arch@vger.kernel.org
Cc: linux-kernel@vger.kernel.org

Anshuman Khandual (3):
  arm64/mm: Drop __HAVE_ARCH_HUGE_PTEP_GET
  mm/hugetlb: Introduce HAVE_ARCH_IS_HUGEPAGE_ONLY_RANGE
  mm/hugetlb: Introduce HAVE_ARCH_CLEAR_HUGEPAGE_FLAGS

 arch/arm/include/asm/hugetlb.h     |  7 +------
 arch/arm64/include/asm/hugetlb.h   | 13 +------------
 arch/ia64/include/asm/hugetlb.h    |  5 +----
 arch/mips/include/asm/hugetlb.h    | 11 -----------
 arch/parisc/include/asm/hugetlb.h  | 10 ----------
 arch/powerpc/include/asm/hugetlb.h |  5 +----
 arch/riscv/include/asm/hugetlb.h   | 10 ----------
 arch/s390/include/asm/hugetlb.h    |  8 +-------
 arch/sh/include/asm/hugetlb.h      |  7 +------
 arch/sparc/include/asm/hugetlb.h   | 10 ----------
 arch/x86/include/asm/hugetlb.h     | 10 ----------
 include/linux/hugetlb.h            | 12 ++++++++++++
 12 files changed, 18 insertions(+), 90 deletions(-)

-- 
2.20.1

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