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From: Anshuman Khandual <anshuman.khandual@arm.com>
To: linux-mm@kvack.org
Cc: Anshuman Khandual <anshuman.khandual@arm.com>,
	Catalin Marinas <catalin.marinas@arm.com>,
	Will Deacon <will@kernel.org>,
	Mark Rutland <mark.rutland@arm.com>,
	Paul Walmsley <paul.walmsley@sifive.com>,
	Palmer Dabbelt <palmer@dabbelt.com>,
	Tony Luck <tony.luck@intel.com>,
	Fenghua Yu <fenghua.yu@intel.com>,
	Dave Hansen <dave.hansen@linux.intel.com>,
	Andy Lutomirski <luto@kernel.org>,
	Peter Zijlstra <peterz@infradead.org>,
	Thomas Gleixner <tglx@linutronix.de>,
	Ingo Molnar <mingo@redhat.com>,
	David Hildenbrand <david@redhat.com>,
	Mike Rapoport <rppt@linux.ibm.com>,
	Michal Hocko <mhocko@suse.com>,
	"Matthew Wilcox (Oracle)" <willy@infradead.org>,
	"Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>,
	Andrew Morton <akpm@linux-foundation.org>,
	Dan Williams <dan.j.williams@intel.com>,
	Pavel Tatashin <pasha.tatashin@soleen.com>,
	linux-arm-kernel@lists.infradead.org, linux-ia64@vger.kernel.org,
	linux-riscv@lists.infradead.org, x86@kernel.org,
	linux-kernel@vger.kernel.org
Subject: [PATCH V2 0/2] arm64: Enable vmemmap mapping from device memory
Date: Wed,  4 Mar 2020 19:40:28 +0530	[thread overview]
Message-ID: <1583331030-7335-1-git-send-email-anshuman.khandual@arm.com> (raw)

This series enables vmemmap backing memory allocation from device memory
ranges on arm64. But before that, it enables vmemmap_populate_basepages()
to accommodate struct vmem_altmap based requests.

This series applies after latest (v14) arm64 memory hot remove series
(https://lkml.org/lkml/2020/3/3/1746) on Linux 5.6-rc4.

Changes in V2:

- Rebased on latest hot-remove series (v14) adding P4D page table support

Changes in V1: (https://lkml.org/lkml/2020/1/23/12)

- Added an WARN_ON() in unmap_hotplug_range() when altmap is
  provided without the page table backing memory being freed

Changes in RFC V2: (https://lkml.org/lkml/2019/10/21/11)

- Changed the commit message on 1/2 patch per Will
- Changed the commit message on 2/2 patch as well
- Rebased on arm64 memory hot remove series (v10)

RFC V1: (https://lkml.org/lkml/2019/6/28/32)

Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Paul Walmsley <paul.walmsley@sifive.com>
Cc: Palmer Dabbelt <palmer@dabbelt.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Mike Rapoport <rppt@linux.ibm.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: "Matthew Wilcox (Oracle)" <willy@infradead.org>
Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Pavel Tatashin <pasha.tatashin@soleen.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-ia64@vger.kernel.org
Cc: linux-riscv@lists.infradead.org
Cc: x86@kernel.org
Cc: linux-kernel@vger.kernel.org

Anshuman Khandual (2):
  mm/sparsemem: Enable vmem_altmap support in vmemmap_populate_basepages()
  arm64/mm: Enable vmem_altmap support for vmemmap mappings

 arch/arm64/mm/mmu.c      | 71 +++++++++++++++++++++++++++++-----------
 arch/ia64/mm/discontig.c |  2 +-
 arch/riscv/mm/init.c     |  2 +-
 arch/x86/mm/init_64.c    |  6 ++--
 include/linux/mm.h       |  5 +--
 mm/sparse-vmemmap.c      | 16 ++++++---
 6 files changed, 70 insertions(+), 32 deletions(-)

-- 
2.20.1



             reply	other threads:[~2020-03-04 14:10 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-03-04 14:10 Anshuman Khandual [this message]
2020-03-04 14:10 ` [PATCH V2 1/2] mm/sparsemem: Enable vmem_altmap support in vmemmap_populate_basepages() Anshuman Khandual
2020-03-20 17:08   ` Robin Murphy
2020-03-24 12:01     ` Anshuman Khandual
2020-03-04 14:10 ` [PATCH V2 2/2] arm64/mm: Enable vmem_altmap support for vmemmap mappings Anshuman Khandual
2020-03-20 19:35   ` Robin Murphy
2020-03-24 12:03     ` Anshuman Khandual

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