[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: Rich Felker, linux-ia64, linux-sh, Catalin Marinas,
	Heiko Carstens, linux-kernel, James E.J. Bottomley,
	Paul Mackerras, H. Peter Anvin, sparclinux, linux-riscv,
	Will Deacon, linux-arch, linux-s390, Yoshinori Sato,
	Michael Ellerman, Helge Deller, x86, Russell King,
	Christian Borntraeger, Ingo Molnar, Benjamin Herrenschmidt,
	Fenghua Yu, Vasily Gorbik, Anshuman Khandual, Thomas Bogendoerfer,
	Borislav Petkov, Paul Walmsley, Thomas Gleixner, linux-arm-kernel,
	Tony Luck, linux-parisc, linux-mips, Palmer Dabbelt, linuxppc-dev,
	David S. Miller, Mike Kravetz

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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