1. 19 Jul, 2019 16 commits
    • Nadav Amit's avatar
      resource: avoid unnecessary lookups in find_next_iomem_res() · 75639875
      Nadav Amit authored
      find_next_iomem_res() shows up to be a source for overhead in dax
      benchmarks.
      
      Improve performance by not considering children of the tree if the top
      level does not match.  Since the range of the parents should include the
      range of the children such check is redundant.
      
      Running sysbench on dax (pmem emulation, with write_cache disabled):
      
        sysbench fileio --file-total-size=3G --file-test-mode=rndwr \
         --file-io-mode=mmap --threads=4 --file-fsync-mode=fdatasync run
      
      Provides the following results:
      
      		events (avg/stddev)
      		-------------------
        5.2-rc3:	12476696.0000/16075.39
        w/patch:	1286320.5000/16402.72	(+3%)
      
      Link: http://lkml.kernel.org/r/20190613045903.4922-3-namit@vmware.com
      
      Signed-off-by: default avatarNadav Amit <namit@vmware.com>
      Cc: Borislav Petkov <bp@suse.de>
      Cc: Toshi Kani <toshi.kani@hpe.com>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Dave Hansen <dave.hansen@linux.intel.com>
      Cc: Dan Williams <dan.j.williams@intel.com>
      Cc: Bjorn Helgaas <bhelgaas@google.com>
      Cc: Ingo Molnar <mingo@kernel.org>
      Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      75639875
    • Nadav Amit's avatar
      resource: fix locking in find_next_iomem_res() · 49f17c26
      Nadav Amit authored
      Since resources can be removed, locking should ensure that the resource
      is not removed while accessing it.  However, find_next_iomem_res() does
      not hold the lock while copying the data of the resource.
      
      Keep holding the lock while the data is copied.  While at it, change the
      return value to a more informative value.  It is disregarded by the
      callers.
      
      [akpm@linux-foundation.org: fix find_next_iomem_res() documentation]
      Link: http://lkml.kernel.org/r/20190613045903.4922-2-namit@vmware.com
      Fixes: ff3cc952
      
       ("resource: Add remove_resource interface")
      Signed-off-by: default avatarNadav Amit <namit@vmware.com>
      Reviewed-by: default avatarAndrew Morton <akpm@linux-foundation.org>
      Reviewed-by: default avatarDan Williams <dan.j.williams@intel.com>
      Cc: Borislav Petkov <bp@suse.de>
      Cc: Toshi Kani <toshi.kani@hpe.com>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Dave Hansen <dave.hansen@linux.intel.com>
      Cc: Bjorn Helgaas <bhelgaas@google.com>
      Cc: Ingo Molnar <mingo@kernel.org>
      Cc: <stable@vger.kernel.org>
      Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      49f17c26
    • Yang Shi's avatar
      mm: thp: fix false negative of shmem vma's THP eligibility · c0630669
      Yang Shi authored
      Commit 7635d9cb ("mm, thp, proc: report THP eligibility for each
      vma") introduced THPeligible bit for processes' smaps.  But, when
      checking the eligibility for shmem vma, __transparent_hugepage_enabled()
      is called to override the result from shmem_huge_enabled().  It may
      result in the anonymous vma's THP flag override shmem's.  For example,
      running a simple test which create THP for shmem, but with anonymous THP
      disabled, when reading the process's smaps, it may show:
      
        7fc92ec00000-7fc92f000000 rw-s 00000000 00:14 27764 /dev/shm/test
        Size:               4096 kB
        ...
        [snip]
        ...
        ShmemPmdMapped:     4096 kB
        ...
        [snip]
        ...
        THPeligible:    0
      
      And, /proc/meminfo does show THP allocated and PMD mapped too:
      
        ShmemHugePages:     4096 kB
        ShmemPmdMapped:     4096 kB
      
      This doesn't make too much sense.  The shmem objects should be treated
      separately from anonymous THP.  Calling shmem_huge_enabled() with
      checking MMF_DISABLE_THP sounds good enough.  And, we could skip stack
      and dax vma check since we already checked if the vma is shmem already.
      
      Also check if vma is suitable for THP by calling
      transhuge_vma_suitable().
      
      And minor fix to smaps output format and documentation.
      
      Link: http://lkml.kernel.org/r/1560401041-32207-3-git-send-email-yang.shi@linux.alibaba.com
      Fixes: 7635d9cb
      
       ("mm, thp, proc: report THP eligibility for each vma")
      Signed-off-by: default avatarYang Shi <yang.shi@linux.alibaba.com>
      Acked-by: default avatarHugh Dickins <hughd@google.com>
      Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
      Cc: Michal Hocko <mhocko@suse.com>
      Cc: Vlastimil Babka <vbabka@suse.cz>
      Cc: David Rientjes <rientjes@google.com>
      Cc: Andrea Arcangeli <aarcange@redhat.com>
      Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      c0630669
    • Yang Shi's avatar
      mm: thp: make transhuge_vma_suitable available for anonymous THP · 43675e6f
      Yang Shi authored
      transhuge_vma_suitable() was only available for shmem THP, but anonymous
      THP has the same check except pgoff check.  And, it will be used for THP
      eligible check in the later patch, so make it available for all kind of
      THPs.  This also helps reduce code duplication slightly.
      
      Since anonymous THP doesn't have to check pgoff, so make pgoff check
      shmem vma only.
      
      And regroup some functions in include/linux/mm.h to solve compile issue
      since transhuge_vma_suitable() needs call vma_is_anonymous() which was
      defined after huge_mm.h is included.
      
      [akpm@linux-foundation.org: fix typo]
      [yang.shi@linux.alibaba.com: v4]
        Link: http://lkml.kernel.org/r/1563400758-124759-2-git-send-email-yang.shi@linux.alibaba.com
      Link: http://lkml.kernel.org/r/1560401041-32207-2-git-send-email-yang.shi@linux.alibaba.com
      
      Signed-off-by: default avatarYang Shi <yang.shi@linux.alibaba.com>
      Acked-by: default avatarHugh Dickins <hughd@google.com>
      Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
      Cc: Michal Hocko <mhocko@suse.com>
      Cc: Vlastimil Babka <vbabka@suse.cz>
      Cc: David Rientjes <rientjes@google.com>
      Cc: Andrea Arcangeli <aarcange@redhat.com>
      Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      43675e6f
    • Wei Yang's avatar
      mm/sparse.c: set section nid for hot-add memory · 26f26bed
      Wei Yang authored
      In case of NODE_NOT_IN_PAGE_FLAGS is set, we store section's node id in
      section_to_node_table[].  While for hot-add memory, this is missed.
      Without this information, page_to_nid() may not give the right node id.
      
      BTW, current online_pages works because it leverages nid in
      memory_block.  But the granularity of node id should be mem_section
      wide.
      
      Link: http://lkml.kernel.org/r/20190618005537.18878-1-richardw.yang@linux.intel.com
      
      Signed-off-by: default avatarWei Yang <richardw.yang@linux.intel.com>
      Reviewed-by: default avatarOscar Salvador <osalvador@suse.de>
      Reviewed-by: default avatarDavid Hildenbrand <david@redhat.com>
      Reviewed-by: default avatarAnshuman Khandual <anshuman.khandual@arm.com>
      Acked-by: default avatarMichal Hocko <mhocko@suse.com>
      Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      26f26bed
    • David Hildenbrand's avatar
      mm/memory_hotplug: remove "zone" parameter from sparse_remove_one_section · b9bf8d34
      David Hildenbrand authored
      The parameter is unused, so let's drop it.  Memory removal paths should
      never care about zones.  This is the job of memory offlining and will
      require more refactorings.
      
      Link: http://lkml.kernel.org/r/20190527111152.16324-12-david@redhat.com
      
      Signed-off-by: default avatarDavid Hildenbrand <david@redhat.com>
      Reviewed-by: default avatarDan Williams <dan.j.williams@intel.com>
      Reviewed-by: default avatarWei Yang <richardw.yang@linux.intel.com>
      Reviewed-by: default avatarOscar Salvador <osalvador@suse.de>
      Acked-by: default avatarMichal Hocko <mhocko@suse.com>
      Cc: Alex Deucher <alexander.deucher@amd.com>
      Cc: Andrew Banman <andrew.banman@hpe.com>
      Cc: Andy Lutomirski <luto@kernel.org>
      Cc: Anshuman Khandual <anshuman.khandual@arm.com>
      Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
      Cc: Arun KS <arunks@codeaurora.org>
      Cc: Baoquan He <bhe@redhat.com>
      Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
      Cc: Borislav Petkov <bp@alien8.de>
      Cc: Catalin Marinas <catalin.marinas@arm.com>
      Cc: Chintan Pandya <cpandya@codeaurora.org>
      Cc: Christophe Leroy <christophe.leroy@c-s.fr>
      Cc: Chris Wilson <chris@chris-wilson.co.uk>
      Cc: Dave Hansen <dave.hansen@linux.intel.com>
      Cc: "David S. Miller" <davem@davemloft.net>
      Cc: Fenghua Yu <fenghua.yu@intel.com>
      Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
      Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
      Cc: "H. Peter Anvin" <hpa@zytor.com>
      Cc: Ingo Molnar <mingo@kernel.org>
      Cc: Jonathan Cameron <Jonathan.Cameron@huawei.com>
      Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
      Cc: Jun Yao <yaojun8558363@gmail.com>
      Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
      Cc: Logan Gunthorpe <logang@deltatee.com>
      Cc: Mark Brown <broonie@kernel.org>
      Cc: Mark Rutland <mark.rutland@arm.com>
      Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
      Cc: Mathieu Malaterre <malat@debian.org>
      Cc: Michael Ellerman <mpe@ellerman.id.au>
      Cc: Mike Rapoport <rppt@linux.vnet.ibm.com>
      Cc: "mike.travis@hpe.com" <mike.travis@hpe.com>
      Cc: Nicholas Piggin <npiggin@gmail.com>
      Cc: Paul Mackerras <paulus@samba.org>
      Cc: Pavel Tatashin <pasha.tatashin@soleen.com>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Qian Cai <cai@lca.pw>
      Cc: "Rafael J. Wysocki" <rafael@kernel.org>
      Cc: Rich Felker <dalias@libc.org>
      Cc: Rob Herring <robh@kernel.org>
      Cc: Robin Murphy <robin.murphy@arm.com>
      Cc: Thomas Gleixner <tglx@linutronix.de>
      Cc: Tony Luck <tony.luck@intel.com>
      Cc: Vasily Gorbik <gor@linux.ibm.com>
      Cc: Will Deacon <will.deacon@arm.com>
      Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
      Cc: Yu Zhao <yuzhao@google.com>
      Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      b9bf8d34
    • David Hildenbrand's avatar
      mm/memory_hotplug: make unregister_memory_block_under_nodes() never fail · a31b264c
      David Hildenbrand authored
      We really don't want anything during memory hotunplug to fail.  We
      always pass a valid memory block device, that check can go.  Avoid
      allocating memory and eventually failing.  As we are always called under
      lock, we can use a static piece of memory.  This avoids having to put
      the structure onto the stack, having to guess about the stack size of
      callers.
      
      Patch inspired by a patch from Oscar Salvador.
      
      In the future, there might be no need to iterate over nodes at all.
      mem->nid should tell us exactly what to remove.  Memory block devices
      with mixed nodes (added during boot) should properly fenced off and
      never removed.
      
      Link: http://lkml.kernel.org/r/20190527111152.16324-11-david@redhat.com
      
      Signed-off-by: default avatarDavid Hildenbrand <david@redhat.com>
      Reviewed-by: default avatarWei Yang <richardw.yang@linux.intel.com>
      Reviewed-by: default avatarOscar Salvador <osalvador@suse.de>
      Acked-by: default avatarMichal Hocko <mhocko@suse.com>
      Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
      Cc: "Rafael J. Wysocki" <rafael@kernel.org>
      Cc: Alex Deucher <alexander.deucher@amd.com>
      Cc: "David S. Miller" <davem@davemloft.net>
      Cc: Mark Brown <broonie@kernel.org>
      Cc: Chris Wilson <chris@chris-wilson.co.uk>
      Cc: David Hildenbrand <david@redhat.com>
      Cc: Jonathan Cameron <Jonathan.Cameron@huawei.com>
      Cc: Andrew Banman <andrew.banman@hpe.com>
      Cc: Andy Lutomirski <luto@kernel.org>
      Cc: Anshuman Khandual <anshuman.khandual@arm.com>
      Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
      Cc: Arun KS <arunks@codeaurora.org>
      Cc: Baoquan He <bhe@redhat.com>
      Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
      Cc: Borislav Petkov <bp@alien8.de>
      Cc: Catalin Marinas <catalin.marinas@arm.com>
      Cc: Chintan Pandya <cpandya@codeaurora.org>
      Cc: Christophe Leroy <christophe.leroy@c-s.fr>
      Cc: Dan Williams <dan.j.williams@intel.com>
      Cc: Dave Hansen <dave.hansen@linux.intel.com>
      Cc: Fenghua Yu <fenghua.yu@intel.com>
      Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
      Cc: "H. Peter Anvin" <hpa@zytor.com>
      Cc: Ingo Molnar <mingo@kernel.org>
      Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
      Cc: Jun Yao <yaojun8558363@gmail.com>
      Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
      Cc: Logan Gunthorpe <logang@deltatee.com>
      Cc: Mark Rutland <mark.rutland@arm.com>
      Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
      Cc: Mathieu Malaterre <malat@debian.org>
      Cc: Michael Ellerman <mpe@ellerman.id.au>
      Cc: Mike Rapoport <rppt@linux.vnet.ibm.com>
      Cc: "mike.travis@hpe.com" <mike.travis@hpe.com>
      Cc: Nicholas Piggin <npiggin@gmail.com>
      Cc: Paul Mackerras <paulus@samba.org>
      Cc: Pavel Tatashin <pasha.tatashin@soleen.com>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Qian Cai <cai@lca.pw>
      Cc: Rich Felker <dalias@libc.org>
      Cc: Rob Herring <robh@kernel.org>
      Cc: Robin Murphy <robin.murphy@arm.com>
      Cc: Thomas Gleixner <tglx@linutronix.de>
      Cc: Tony Luck <tony.luck@intel.com>
      Cc: Vasily Gorbik <gor@linux.ibm.com>
      Cc: Will Deacon <will.deacon@arm.com>
      Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
      Cc: Yu Zhao <yuzhao@google.com>
      Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      a31b264c
    • David Hildenbrand's avatar
      mm/memory_hotplug: remove memory block devices before arch_remove_memory() · 4c4b7f9b
      David Hildenbrand authored
      Let's factor out removing of memory block devices, which is only
      necessary for memory added via add_memory() and friends that created
      memory block devices.  Remove the devices before calling
      arch_remove_memory().
      
      This finishes factoring out memory block device handling from
      arch_add_memory() and arch_remove_memory().
      
      Link: http://lkml.kernel.org/r/20190527111152.16324-10-david@redhat.com
      
      Signed-off-by: default avatarDavid Hildenbrand <david@redhat.com>
      Reviewed-by: default avatarDan Williams <dan.j.williams@intel.com>
      Acked-by: default avatarMichal Hocko <mhocko@suse.com>
      Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
      Cc: "Rafael J. Wysocki" <rafael@kernel.org>
      Cc: David Hildenbrand <david@redhat.com>
      Cc: "mike.travis@hpe.com" <mike.travis@hpe.com>
      Cc: Andrew Banman <andrew.banman@hpe.com>
      Cc: Ingo Molnar <mingo@kernel.org>
      Cc: Alex Deucher <alexander.deucher@amd.com>
      Cc: "David S. Miller" <davem@davemloft.net>
      Cc: Mark Brown <broonie@kernel.org>
      Cc: Chris Wilson <chris@chris-wilson.co.uk>
      Cc: Oscar Salvador <osalvador@suse.de>
      Cc: Jonathan Cameron <Jonathan.Cameron@huawei.com>
      Cc: Arun KS <arunks@codeaurora.org>
      Cc: Mathieu Malaterre <malat@debian.org>
      Cc: Andy Lutomirski <luto@kernel.org>
      Cc: Anshuman Khandual <anshuman.khandual@arm.com>
      Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
      Cc: Baoquan He <bhe@redhat.com>
      Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
      Cc: Borislav Petkov <bp@alien8.de>
      Cc: Catalin Marinas <catalin.marinas@arm.com>
      Cc: Chintan Pandya <cpandya@codeaurora.org>
      Cc: Christophe Leroy <christophe.leroy@c-s.fr>
      Cc: Dave Hansen <dave.hansen@linux.intel.com>
      Cc: Fenghua Yu <fenghua.yu@intel.com>
      Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
      Cc: "H. Peter Anvin" <hpa@zytor.com>
      Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
      Cc: Jun Yao <yaojun8558363@gmail.com>
      Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
      Cc: Logan Gunthorpe <logang@deltatee.com>
      Cc: Mark Rutland <mark.rutland@arm.com>
      Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
      Cc: Michael Ellerman <mpe@ellerman.id.au>
      Cc: Mike Rapoport <rppt@linux.vnet.ibm.com>
      Cc: Nicholas Piggin <npiggin@gmail.com>
      Cc: Oscar Salvador <osalvador@suse.com>
      Cc: Paul Mackerras <paulus@samba.org>
      Cc: Pavel Tatashin <pasha.tatashin@soleen.com>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Qian Cai <cai@lca.pw>
      Cc: Rich Felker <dalias@libc.org>
      Cc: Rob Herring <robh@kernel.org>
      Cc: Robin Murphy <robin.murphy@arm.com>
      Cc: Thomas Gleixner <tglx@linutronix.de>
      Cc: Tony Luck <tony.luck@intel.com>
      Cc: Vasily Gorbik <gor@linux.ibm.com>
      Cc: Wei Yang <richard.weiyang@gmail.com>
      Cc: Will Deacon <will.deacon@arm.com>
      Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
      Cc: Yu Zhao <yuzhao@google.com>
      Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      4c4b7f9b
    • David Hildenbrand's avatar
      mm/memory_hotplug: drop MHP_MEMBLOCK_API · 05f800a0
      David Hildenbrand authored
      No longer needed, the callers of arch_add_memory() can handle this
      manually.
      
      Link: http://lkml.kernel.org/r/20190527111152.16324-9-david@redhat.com
      
      Signed-off-by: default avatarDavid Hildenbrand <david@redhat.com>
      Reviewed-by: default avatarWei Yang <richardw.yang@linux.intel.com>
      Acked-by: default avatarMichal Hocko <mhocko@suse.com>
      Cc: David Hildenbrand <david@redhat.com>
      Cc: Oscar Salvador <osalvador@suse.com>
      Cc: Pavel Tatashin <pasha.tatashin@soleen.com>
      Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
      Cc: Qian Cai <cai@lca.pw>
      Cc: Arun KS <arunks@codeaurora.org>
      Cc: Mathieu Malaterre <malat@debian.org>
      Cc: Mike Rapoport <rppt@linux.vnet.ibm.com>
      Cc: Alex Deucher <alexander.deucher@amd.com>
      Cc: Andrew Banman <andrew.banman@hpe.com>
      Cc: Andy Lutomirski <luto@kernel.org>
      Cc: Anshuman Khandual <anshuman.khandual@arm.com>
      Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
      Cc: Baoquan He <bhe@redhat.com>
      Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
      Cc: Borislav Petkov <bp@alien8.de>
      Cc: Catalin Marinas <catalin.marinas@arm.com>
      Cc: Chintan Pandya <cpandya@codeaurora.org>
      Cc: Christophe Leroy <christophe.leroy@c-s.fr>
      Cc: Chris Wilson <chris@chris-wilson.co.uk>
      Cc: Dan Williams <dan.j.williams@intel.com>
      Cc: Dave Hansen <dave.hansen@linux.intel.com>
      Cc: "David S. Miller" <davem@davemloft.net>
      Cc: Fenghua Yu <fenghua.yu@intel.com>
      Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
      Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
      Cc: "H. Peter Anvin" <hpa@zytor.com>
      Cc: Ingo Molnar <mingo@kernel.org>
      Cc: Jonathan Cameron <Jonathan.Cameron@huawei.com>
      Cc: Jun Yao <yaojun8558363@gmail.com>
      Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
      Cc: Logan Gunthorpe <logang@deltatee.com>
      Cc: Mark Brown <broonie@kernel.org>
      Cc: Mark Rutland <mark.rutland@arm.com>
      Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
      Cc: Michael Ellerman <mpe@ellerman.id.au>
      Cc: Mike Rapoport <rppt@linux.ibm.com>
      Cc: "mike.travis@hpe.com" <mike.travis@hpe.com>
      Cc: Nicholas Piggin <npiggin@gmail.com>
      Cc: Oscar Salvador <osalvador@suse.de>
      Cc: Paul Mackerras <paulus@samba.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: "Rafael J. Wysocki" <rafael@kernel.org>
      Cc: Rich Felker <dalias@libc.org>
      Cc: Rob Herring <robh@kernel.org>
      Cc: Robin Murphy <robin.murphy@arm.com>
      Cc: Thomas Gleixner <tglx@linutronix.de>
      Cc: Tony Luck <tony.luck@intel.com>
      Cc: Vasily Gorbik <gor@linux.ibm.com>
      Cc: Will Deacon <will.deacon@arm.com>
      Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
      Cc: Yu Zhao <yuzhao@google.com>
      Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      05f800a0
    • David Hildenbrand's avatar
      mm/memory_hotplug: create memory block devices after arch_add_memory() · db051a0d
      David Hildenbrand authored
      Only memory to be added to the buddy and to be onlined/offlined by user
      space using /sys/devices/system/memory/...  needs (and should have!)
      memory block devices.
      
      Factor out creation of memory block devices.  Create all devices after
      arch_add_memory() succeeded.  We can later drop the want_memblock
      parameter, because it is now effectively stale.
      
      Only after memory block devices have been added, memory can be onlined
      by user space.  This implies, that memory is not visible to user space
      at all before arch_add_memory() succeeded.
      
      While at it
       - use WARN_ON_ONCE instead of BUG_ON in moved unregister_memory()
       - introduce find_memory_block_by_id() to search via block id
       - Use find_memory_block_by_id() in init_memory_block() to catch
         duplicates
      
      Link: http://lkml.kernel.org/r/20190527111152.16324-8-david@redhat.com
      
      Signed-off-by: default avatarDavid Hildenbrand <david@redhat.com>
      Reviewed-by: default avatarPavel Tatashin <pasha.tatashin@soleen.com>
      Acked-by: default avatarMichal Hocko <mhocko@suse.com>
      Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
      Cc: "Rafael J. Wysocki" <rafael@kernel.org>
      Cc: David Hildenbrand <david@redhat.com>
      Cc: "mike.travis@hpe.com" <mike.travis@hpe.com>
      Cc: Ingo Molnar <mingo@kernel.org>
      Cc: Andrew Banman <andrew.banman@hpe.com>
      Cc: Oscar Salvador <osalvador@suse.de>
      Cc: Qian Cai <cai@lca.pw>
      Cc: Wei Yang <richard.weiyang@gmail.com>
      Cc: Arun KS <arunks@codeaurora.org>
      Cc: Mathieu Malaterre <malat@debian.org>
      Cc: Alex Deucher <alexander.deucher@amd.com>
      Cc: Andy Lutomirski <luto@kernel.org>
      Cc: Anshuman Khandual <anshuman.khandual@arm.com>
      Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
      Cc: Baoquan He <bhe@redhat.com>
      Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
      Cc: Borislav Petkov <bp@alien8.de>
      Cc: Catalin Marinas <catalin.marinas@arm.com>
      Cc: Chintan Pandya <cpandya@codeaurora.org>
      Cc: Christophe Leroy <christophe.leroy@c-s.fr>
      Cc: Chris Wilson <chris@chris-wilson.co.uk>
      Cc: Dan Williams <dan.j.williams@intel.com>
      Cc: Dave Hansen <dave.hansen@linux.intel.com>
      Cc: "David S. Miller" <davem@davemloft.net>
      Cc: Fenghua Yu <fenghua.yu@intel.com>
      Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
      Cc: "H. Peter Anvin" <hpa@zytor.com>
      Cc: Jonathan Cameron <Jonathan.Cameron@huawei.com>
      Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
      Cc: Jun Yao <yaojun8558363@gmail.com>
      Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
      Cc: Logan Gunthorpe <logang@deltatee.com>
      Cc: Mark Brown <broonie@kernel.org>
      Cc: Mark Rutland <mark.rutland@arm.com>
      Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
      Cc: Michael Ellerman <mpe@ellerman.id.au>
      Cc: Mike Rapoport <rppt@linux.vnet.ibm.com>
      Cc: Nicholas Piggin <npiggin@gmail.com>
      Cc: Oscar Salvador <osalvador@suse.com>
      Cc: Paul Mackerras <paulus@samba.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Rich Felker <dalias@libc.org>
      Cc: Rob Herring <robh@kernel.org>
      Cc: Robin Murphy <robin.murphy@arm.com>
      Cc: Thomas Gleixner <tglx@linutronix.de>
      Cc: Tony Luck <tony.luck@intel.com>
      Cc: Vasily Gorbik <gor@linux.ibm.com>
      Cc: Will Deacon <will.deacon@arm.com>
      Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
      Cc: Yu Zhao <yuzhao@google.com>
      Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      db051a0d
    • David Hildenbrand's avatar
      mm/memory_hotplug: allow arch_remove_memory() without CONFIG_MEMORY_HOTREMOVE · 80ec922d
      David Hildenbrand authored
      We want to improve error handling while adding memory by allowing to use
      arch_remove_memory() and __remove_pages() even if
      CONFIG_MEMORY_HOTREMOVE is not set to e.g., implement something like:
      
      	arch_add_memory()
      	rc = do_something();
      	if (rc) {
      		arch_remove_memory();
      	}
      
      We won't get rid of CONFIG_MEMORY_HOTREMOVE for now, as it will require
      quite some dependencies for memory offlining.
      
      Link: http://lkml.kernel.org/r/20190527111152.16324-7-david@redhat.com
      
      Signed-off-by: default avatarDavid Hildenbrand <david@redhat.com>
      Reviewed-by: default avatarPavel Tatashin <pasha.tatashin@soleen.com>
      Cc: Tony Luck <tony.luck@intel.com>
      Cc: Fenghua Yu <fenghua.yu@intel.com>
      Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
      Cc: Paul Mackerras <paulus@samba.org>
      Cc: Michael Ellerman <mpe@ellerman.id.au>
      Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
      Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
      Cc: Rich Felker <dalias@libc.org>
      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: Borislav Petkov <bp@alien8.de>
      Cc: "H. Peter Anvin" <hpa@zytor.com>
      Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
      Cc: "Rafael J. Wysocki" <rafael@kernel.org>
      Cc: Michal Hocko <mhocko@suse.com>
      Cc: David Hildenbrand <david@redhat.com>
      Cc: Oscar Salvador <osalvador@suse.com>
      Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
      Cc: Alex Deucher <alexander.deucher@amd.com>
      Cc: "David S. Miller" <davem@davemloft.net>
      Cc: Mark Brown <broonie@kernel.org>
      Cc: Chris Wilson <chris@chris-wilson.co.uk>
      Cc: Christophe Leroy <christophe.leroy@c-s.fr>
      Cc: Nicholas Piggin <npiggin@gmail.com>
      Cc: Vasily Gorbik <gor@linux.ibm.com>
      Cc: Rob Herring <robh@kernel.org>
      Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
      Cc: "mike.travis@hpe.com" <mike.travis@hpe.com>
      Cc: Andrew Banman <andrew.banman@hpe.com>
      Cc: Arun KS <arunks@codeaurora.org>
      Cc: Qian Cai <cai@lca.pw>
      Cc: Mathieu Malaterre <malat@debian.org>
      Cc: Baoquan He <bhe@redhat.com>
      Cc: Logan Gunthorpe <logang@deltatee.com>
      Cc: Anshuman Khandual <anshuman.khandual@arm.com>
      Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
      Cc: Catalin Marinas <catalin.marinas@arm.com>
      Cc: Chintan Pandya <cpandya@codeaurora.org>
      Cc: Dan Williams <dan.j.williams@intel.com>
      Cc: Ingo Molnar <mingo@kernel.org>
      Cc: Jonathan Cameron <Jonathan.Cameron@huawei.com>
      Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
      Cc: Jun Yao <yaojun8558363@gmail.com>
      Cc: Mark Rutland <mark.rutland@arm.com>
      Cc: Mike Rapoport <rppt@linux.vnet.ibm.com>
      Cc: Oscar Salvador <osalvador@suse.de>
      Cc: Robin Murphy <robin.murphy@arm.com>
      Cc: Wei Yang <richard.weiyang@gmail.com>
      Cc: Will Deacon <will.deacon@arm.com>
      Cc: Yu Zhao <yuzhao@google.com>
      Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      80ec922d
    • David Hildenbrand's avatar
      drivers/base/memory: pass a block_id to init_memory_block() · 18115825
      David Hildenbrand authored
      We'll rework hotplug_memory_register() shortly, so it no longer consumes
      pass a section.
      
      [cai@lca.pw: fix a compilation warning]
        Link: http://lkml.kernel.org/r/1559320186-28337-1-git-send-email-cai@lca.pw
      Link: http://lkml.kernel.org/r/20190527111152.16324-6-david@redhat.com
      
      Signed-off-by: default avatarDavid Hildenbrand <david@redhat.com>
      Signed-off-by: default avatarQian Cai <cai@lca.pw>
      Acked-by: default avatarMichal Hocko <mhocko@suse.com>
      Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
      Cc: "Rafael J. Wysocki" <rafael@kernel.org>
      Cc: Alex Deucher <alexander.deucher@amd.com>
      Cc: Andrew Banman <andrew.banman@hpe.com>
      Cc: Andy Lutomirski <luto@kernel.org>
      Cc: Anshuman Khandual <anshuman.khandual@arm.com>
      Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
      Cc: Arun KS <arunks@codeaurora.org>
      Cc: Baoquan He <bhe@redhat.com>
      Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
      Cc: Borislav Petkov <bp@alien8.de>
      Cc: Catalin Marinas <catalin.marinas@arm.com>
      Cc: Chintan Pandya <cpandya@codeaurora.org>
      Cc: Christophe Leroy <christophe.leroy@c-s.fr>
      Cc: Chris Wilson <chris@chris-wilson.co.uk>
      Cc: Dan Williams <dan.j.williams@intel.com>
      Cc: Dave Hansen <dave.hansen@linux.intel.com>
      Cc: "David S. Miller" <davem@davemloft.net>
      Cc: Fenghua Yu <fenghua.yu@intel.com>
      Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
      Cc: "H. Peter Anvin" <hpa@zytor.com>
      Cc: Ingo Molnar <mingo@kernel.org>
      Cc: Jonathan Cameron <Jonathan.Cameron@huawei.com>
      Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
      Cc: Jun Yao <yaojun8558363@gmail.com>
      Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
      Cc: Logan Gunthorpe <logang@deltatee.com>
      Cc: Mark Brown <broonie@kernel.org>
      Cc: Mark Rutland <mark.rutland@arm.com>
      Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
      Cc: Mathieu Malaterre <malat@debian.org>
      Cc: Michael Ellerman <mpe@ellerman.id.au>
      Cc: Mike Rapoport <rppt@linux.vnet.ibm.com>
      Cc: "mike.travis@hpe.com" <mike.travis@hpe.com>
      Cc: Nicholas Piggin <npiggin@gmail.com>
      Cc: Oscar Salvador <osalvador@suse.com>
      Cc: Oscar Salvador <osalvador@suse.de>
      Cc: Paul Mackerras <paulus@samba.org>
      Cc: Pavel Tatashin <pasha.tatashin@soleen.com>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Rich Felker <dalias@libc.org>
      Cc: Rob Herring <robh@kernel.org>
      Cc: Robin Murphy <robin.murphy@arm.com>
      Cc: Thomas Gleixner <tglx@linutronix.de>
      Cc: Tony Luck <tony.luck@intel.com>
      Cc: Vasily Gorbik <gor@linux.ibm.com>
      Cc: Wei Yang <richard.weiyang@gmail.com>
      Cc: Will Deacon <will.deacon@arm.com>
      Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
      Cc: Yu Zhao <yuzhao@google.com>
      Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      18115825
    • David Hildenbrand's avatar
      arm64/mm: add temporary arch_remove_memory() implementation · 22eb6346
      David Hildenbrand authored
      A proper arch_remove_memory() implementation is on its way, which also
      cleanly removes page tables in arch_add_memory() in case something goes
      wrong.
      
      As we want to use arch_remove_memory() in case something goes wrong
      during memory hotplug after arch_add_memory() finished, let's add a
      temporary hack that is sufficient enough until we get a proper
      implementation that cleans up page table entries.
      
      We will remove CONFIG_MEMORY_HOTREMOVE around this code in follow up
      patches.
      
      Link: http://lkml.kernel.org/r/20190527111152.16324-5-david@redhat.com
      
      Signed-off-by: default avatarDavid Hildenbrand <david@redhat.com>
      Cc: Catalin Marinas <catalin.marinas@arm.com>
      Cc: Will Deacon <will.deacon@arm.com>
      Cc: Mark Rutland <mark.rutland@arm.com>
      Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
      Cc: Chintan Pandya <cpandya@codeaurora.org>
      Cc: Mike Rapoport <rppt@linux.ibm.com>
      Cc: Jun Yao <yaojun8558363@gmail.com>
      Cc: Yu Zhao <yuzhao@google.com>
      Cc: Robin Murphy <robin.murphy@arm.com>
      Cc: Anshuman Khandual <anshuman.khandual@arm.com>
      Cc: Alex Deucher <alexander.deucher@amd.com>
      Cc: Andrew Banman <andrew.banman@hpe.com>
      Cc: Andy Lutomirski <luto@kernel.org>
      Cc: Arun KS <arunks@codeaurora.org>
      Cc: Baoquan He <bhe@redhat.com>
      Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
      Cc: Borislav Petkov <bp@alien8.de>
      Cc: Christophe Leroy <christophe.leroy@c-s.fr>
      Cc: Chris Wilson <chris@chris-wilson.co.uk>
      Cc: Dan Williams <dan.j.williams@intel.com>
      Cc: Dave Hansen <dave.hansen@linux.intel.com>
      Cc: "David S. Miller" <davem@davemloft.net>
      Cc: Fenghua Yu <fenghua.yu@intel.com>
      Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
      Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
      Cc: "H. Peter Anvin" <hpa@zytor.com>
      Cc: Ingo Molnar <mingo@kernel.org>
      Cc: Jonathan Cameron <Jonathan.Cameron@huawei.com>
      Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
      Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
      Cc: Logan Gunthorpe <logang@deltatee.com>
      Cc: Mark Brown <broonie@kernel.org>
      Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
      Cc: Mathieu Malaterre <malat@debian.org>
      Cc: Michael Ellerman <mpe@ellerman.id.au>
      Cc: Michal Hocko <mhocko@suse.com>
      Cc: Mike Rapoport <rppt@linux.vnet.ibm.com>
      Cc: "mike.travis@hpe.com" <mike.travis@hpe.com>
      Cc: Nicholas Piggin <npiggin@gmail.com>
      Cc: Oscar Salvador <osalvador@suse.com>
      Cc: Oscar Salvador <osalvador@suse.de>
      Cc: Paul Mackerras <paulus@samba.org>
      Cc: Pavel Tatashin <pasha.tatashin@soleen.com>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Qian Cai <cai@lca.pw>
      Cc: "Rafael J. Wysocki" <rafael@kernel.org>
      Cc: Rich Felker <dalias@libc.org>
      Cc: Rob Herring <robh@kernel.org>
      Cc: Thomas Gleixner <tglx@linutronix.de>
      Cc: Tony Luck <tony.luck@intel.com>
      Cc: Vasily Gorbik <gor@linux.ibm.com>
      Cc: Wei Yang <richard.weiyang@gmail.com>
      Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
      Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      22eb6346
    • David Hildenbrand's avatar
      s390x/mm: implement arch_remove_memory() · 18c86506
      David Hildenbrand authored
      Will come in handy when wanting to handle errors after
      arch_add_memory().
      
      Link: http://lkml.kernel.org/r/20190527111152.16324-4-david@redhat.com
      
      Signed-off-by: default avatarDavid Hildenbrand <david@redhat.com>
      Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
      Cc: Michal Hocko <mhocko@suse.com>
      Cc: Mike Rapoport <rppt@linux.vnet.ibm.com>
      Cc: David Hildenbrand <david@redhat.com>
      Cc: Vasily Gorbik <gor@linux.ibm.com>
      Cc: Oscar Salvador <osalvador@suse.com>
      Cc: Alex Deucher <alexander.deucher@amd.com>
      Cc: Andrew Banman <andrew.banman@hpe.com>
      Cc: Andy Lutomirski <luto@kernel.org>
      Cc: Anshuman Khandual <anshuman.khandual@arm.com>
      Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
      Cc: Arun KS <arunks@codeaurora.org>
      Cc: Baoquan He <bhe@redhat.com>
      Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
      Cc: Borislav Petkov <bp@alien8.de>
      Cc: Catalin Marinas <catalin.marinas@arm.com>
      Cc: Chintan Pandya <cpandya@codeaurora.org>
      Cc: Christophe Leroy <christophe.leroy@c-s.fr>
      Cc: Chris Wilson <chris@chris-wilson.co.uk>
      Cc: Dan Williams <dan.j.williams@intel.com>
      Cc: Dave Hansen <dave.hansen@linux.intel.com>
      Cc: "David S. Miller" <davem@davemloft.net>
      Cc: Fenghua Yu <fenghua.yu@intel.com>
      Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
      Cc: "H. Peter Anvin" <hpa@zytor.com>
      Cc: Ingo Molnar <mingo@kernel.org>
      Cc: Jonathan Cameron <Jonathan.Cameron@huawei.com>
      Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
      Cc: Jun Yao <yaojun8558363@gmail.com>
      Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
      Cc: Logan Gunthorpe <logang@deltatee.com>
      Cc: Mark Brown <broonie@kernel.org>
      Cc: Mark Rutland <mark.rutland@arm.com>
      Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
      Cc: Mathieu Malaterre <malat@debian.org>
      Cc: Michael Ellerman <mpe@ellerman.id.au>
      Cc: Mike Rapoport <rppt@linux.ibm.com>
      Cc: "mike.travis@hpe.com" <mike.travis@hpe.com>
      Cc: Nicholas Piggin <npiggin@gmail.com>
      Cc: Oscar Salvador <osalvador@suse.de>
      Cc: Paul Mackerras <paulus@samba.org>
      Cc: Pavel Tatashin <pasha.tatashin@soleen.com>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Qian Cai <cai@lca.pw>
      Cc: "Rafael J. Wysocki" <rafael@kernel.org>
      Cc: Rich Felker <dalias@libc.org>
      Cc: Rob Herring <robh@kernel.org>
      Cc: Robin Murphy <robin.murphy@arm.com>
      Cc: Thomas Gleixner <tglx@linutronix.de>
      Cc: Tony Luck <tony.luck@intel.com>
      Cc: Wei Yang <richard.weiyang@gmail.com>
      Cc: Will Deacon <will.deacon@arm.com>
      Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
      Cc: Yu Zhao <yuzhao@google.com>
      Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      18c86506
    • David Hildenbrand's avatar
      s390x/mm: fail when an altmap is used for arch_add_memory() · 973de24a
      David Hildenbrand authored
      ZONE_DEVICE is not yet supported, fail if an altmap is passed, so we
      don't forget arch_add_memory()/arch_remove_memory() when unlocking
      support.
      
      Link: http://lkml.kernel.org/r/20190527111152.16324-3-david@redhat.com
      
      Signed-off-by: default avatarDavid Hildenbrand <david@redhat.com>
      Suggested-by: default avatarDan Williams <dan.j.williams@intel.com>
      Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
      Cc: Michal Hocko <mhocko@suse.com>
      Cc: Mike Rapoport <rppt@linux.vnet.ibm.com>
      Cc: David Hildenbrand <david@redhat.com>
      Cc: Vasily Gorbik <gor@linux.ibm.com>
      Cc: Oscar Salvador <osalvador@suse.com>
      Cc: Alex Deucher <alexander.deucher@amd.com>
      Cc: Andrew Banman <andrew.banman@hpe.com>
      Cc: Andy Lutomirski <luto@kernel.org>
      Cc: Anshuman Khandual <anshuman.khandual@arm.com>
      Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
      Cc: Arun KS <arunks@codeaurora.org>
      Cc: Baoquan He <bhe@redhat.com>
      Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
      Cc: Borislav Petkov <bp@alien8.de>
      Cc: Catalin Marinas <catalin.marinas@arm.com>
      Cc: Chintan Pandya <cpandya@codeaurora.org>
      Cc: Christophe Leroy <christophe.leroy@c-s.fr>
      Cc: Chris Wilson <chris@chris-wilson.co.uk>
      Cc: Dave Hansen <dave.hansen@linux.intel.com>
      Cc: "David S. Miller" <davem@davemloft.net>
      Cc: Fenghua Yu <fenghua.yu@intel.com>
      Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
      Cc: "H. Peter Anvin" <hpa@zytor.com>
      Cc: Ingo Molnar <mingo@kernel.org>
      Cc: Jonathan Cameron <Jonathan.Cameron@huawei.com>
      Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
      Cc: Jun Yao <yaojun8558363@gmail.com>
      Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
      Cc: Logan Gunthorpe <logang@deltatee.com>
      Cc: Mark Brown <broonie@kernel.org>
      Cc: Mark Rutland <mark.rutland@arm.com>
      Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
      Cc: Mathieu Malaterre <malat@debian.org>
      Cc: Michael Ellerman <mpe@ellerman.id.au>
      Cc: Mike Rapoport <rppt@linux.ibm.com>
      Cc: "mike.travis@hpe.com" <mike.travis@hpe.com>
      Cc: Nicholas Piggin <npiggin@gmail.com>
      Cc: Oscar Salvador <osalvador@suse.de>
      Cc: Paul Mackerras <paulus@samba.org>
      Cc: Pavel Tatashin <pasha.tatashin@soleen.com>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Qian Cai <cai@lca.pw>
      Cc: "Rafael J. Wysocki" <rafael@kernel.org>
      Cc: Rich Felker <dalias@libc.org>
      Cc: Rob Herring <robh@kernel.org>
      Cc: Robin Murphy <robin.murphy@arm.com>
      Cc: Thomas Gleixner <tglx@linutronix.de>
      Cc: Tony Luck <tony.luck@intel.com>
      Cc: Wei Yang <richard.weiyang@gmail.com>
      Cc: Will Deacon <will.deacon@arm.com>
      Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
      Cc: Yu Zhao <yuzhao@google.com>
      Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      973de24a
    • David Hildenbrand's avatar
      mm/memory_hotplug: simplify and fix check_hotplug_memory_range() · cec3ebd0
      David Hildenbrand authored
      Patch series "mm/memory_hotplug: Factor out memory block devicehandling", v3.
      
      We only want memory block devices for memory to be onlined/offlined
      (add/remove from the buddy).  This is required so user space can
      online/offline memory and kdump gets notified about newly onlined
      memory.
      
      Let's factor out creation/removal of memory block devices.  This helps
      to further cleanup arch_add_memory/arch_remove_memory() and to make
      implementation of new features easier - especially sub-section memory
      hot add from Dan.
      
      Anshuman Khandual is currently working on arch_remove_memory().  I added
      a temporary solution via "arm64/mm: Add temporary arch_remove_memory()
      implementation", that is sufficient as a firsts tep in the context of
      this series.  (we don't cleanup page tables in case anything goes wrong
      already)
      
      Did a quick sanity test with DIMM plug/unplug, making sure all devices
      and sysfs links properly get added/removed.  Compile tested on s390x and
      x86-64.
      
      This patch (of 11):
      
      By converting start and size to page granularity, we actually ignore
      unaligned parts within a page instead of properly bailing out with an
      error.
      
      Link: http://lkml.kernel.org/r/20190527111152.16324-2-david@redhat.com
      
      Signed-off-by: default avatarDavid Hildenbrand <david@redhat.com>
      Reviewed-by: default avatarDan Williams <dan.j.williams@intel.com>
      Reviewed-by: default avatarWei Yang <richardw.yang@linux.intel.com>
      Reviewed-by: default avatarPavel Tatashin <pasha.tatashin@soleen.com>
      Reviewed-by: default avatarOscar Salvador <osalvador@suse.de>
      Acked-by: default avatarMichal Hocko <mhocko@suse.com>
      Cc: David Hildenbrand <david@redhat.com>
      Cc: Qian Cai <cai@lca.pw>
      Cc: Arun KS <arunks@codeaurora.org>
      Cc: Mathieu Malaterre <malat@debian.org>
      Cc: Alex Deucher <alexander.deucher@amd.com>
      Cc: Andrew Banman <andrew.banman@hpe.com>
      Cc: Andy Lutomirski <luto@kernel.org>
      Cc: Anshuman Khandual <anshuman.khandual@arm.com>
      Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
      Cc: Baoquan He <bhe@redhat.com>
      Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
      Cc: Borislav Petkov <bp@alien8.de>
      Cc: Catalin Marinas <catalin.marinas@arm.com>
      Cc: Chintan Pandya <cpandya@codeaurora.org>
      Cc: Christophe Leroy <christophe.leroy@c-s.fr>
      Cc: Chris Wilson <chris@chris-wilson.co.uk>
      Cc: Dave Hansen <dave.hansen@linux.intel.com>
      Cc: "David S. Miller" <davem@davemloft.net>
      Cc: Fenghua Yu <fenghua.yu@intel.com>
      Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
      Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
      Cc: "H. Peter Anvin" <hpa@zytor.com>
      Cc: Ingo Molnar <mingo@kernel.org>
      Cc: Jonathan Cameron <Jonathan.Cameron@huawei.com>
      Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
      Cc: Jun Yao <yaojun8558363@gmail.com>
      Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
      Cc: Logan Gunthorpe <logang@deltatee.com>
      Cc: Mark Brown <broonie@kernel.org>
      Cc: Mark Rutland <mark.rutland@arm.com>
      Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
      Cc: Michael Ellerman <mpe@ellerman.id.au>
      Cc: Mike Rapoport <rppt@linux.vnet.ibm.com>
      Cc: "mike.travis@hpe.com" <mike.travis@hpe.com>
      Cc: Nicholas Piggin <npiggin@gmail.com>
      Cc: Paul Mackerras <paulus@samba.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: "Rafael J. Wysocki" <rafael@kernel.org>
      Cc: Rich Felker <dalias@libc.org>
      Cc: Rob Herring <robh@kernel.org>
      Cc: Robin Murphy <robin.murphy@arm.com>
      Cc: Thomas Gleixner <tglx@linutronix.de>
      Cc: Tony Luck <tony.luck@intel.com>
      Cc: Vasily Gorbik <gor@linux.ibm.com>
      Cc: Will Deacon <will.deacon@arm.com>
      Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
      Cc: Yu Zhao <yuzhao@google.com>
      Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      cec3ebd0
  2. 18 Jul, 2019 7 commits
    • Linus Torvalds's avatar
      Merge tag 'sound-fix-5.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound · 2ae048e1
      Linus Torvalds authored
      Pull sound fixes from Takashi Iwai:
       "A collection of small fixes.
      
         - The optimization of PM resume with HD-audio HDMI codecs, which
           eventually work around weird issues
      
         - A correction of Intel Icelake HDMI audio code
      
         - Quirks for Dell machines with Realtek HD-audio codecs
      
         - The fix for too long sequencer write stall that was spotted by
           syzkaller
      
         - A few trivial cleanups reported by coccinelle"
      
      * tag 'sound-fix-5.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
        ALSA: hda - Don't resume forcibly i915 HDMI/DP codec
        ALSA: hda/hdmi - Fix i915 reverse port/pin mapping
        ALSA: hda/hdmi - Remove duplicated define
        ALSA: seq: Break too long mutex context in the write loop
        ALSA: hda/realtek: apply ALC891 headset fixup to one Dell machine
        ALSA: rme9652: Unneeded variable: "result".
        ALSA: emu10k1: Remove unneeded variable "change"
        ALSA: au88x0: Remove unneeded variable: "changed"
        ALSA: hda/realtek - Fixed Headphone Mic can't record on Dell platform
        ALSA: ps3: Remove Unneeded variable: "ret"
        ALSA: lx6464es: Remove unneeded variable err
      2ae048e1
    • Linus Torvalds's avatar
      Merge tag 'pm-5.3-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm · d0411ec8
      Linus Torvalds authored
      Pull more power management updates from Rafael Wysocki:
       "These modify the Intel RAPL driver to allow it to use an MMIO
        interface to the hardware, make the int340X thermal driver provide
        such an interface for it, add Intel Ice Lake CPU IDs to the RAPL
        driver (these changes depend on the previously merged x86 arch
        changes), update cpufreq to use the PM QoS framework for managing the
        min and max frequency limits, and add update the imx-cpufreq-dt
        cpufreq driver to support i.MX8MN.
      
        Specifics:
      
         - Add MMIO interface support to the Intel RAPL power capping driver
           and update the int340X thermal driver to provide a RAPL MMIO
           interface (Zhang Rui, Stephen Rothwell).
      
         - Add Intel Ice Lake CPU IDs to the RAPL driver (Zhang Rui, Rajneesh
           Bhardwaj).
      
         - Make cpufreq use the PM QoS framework (instead of notifiers) for
           managing the min and max frequency constraints (Viresh Kumar).
      
         - Add i.MX8MN support to the imx-cpufreq-dt cpufreq driver (Anson
           Huang)"
      
      * tag 'pm-5.3-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (27 commits)
        cpufreq: Make cpufreq_generic_init() return void
        intel_rapl: need linux/cpuhotplug.h for enum cpuhp_state
        powercap/rapl: Add Ice Lake NNPI support to RAPL driver
        powercap/intel_rapl: add support for ICX-D
        powercap/intel_rapl: add support for ICX
        powercap/intel_rapl: add support for IceLake desktop
        intel_rapl: Fix module autoloading issue
        int340X/processor_thermal_device: add support for MMIO RAPL
        intel_rapl: support two power limits for every RAPL domain
        intel_rapl: support 64 bit register
        intel_rapl: abstract RAPL common code
        intel_rapl: cleanup hardcoded MSR access
        intel_rapl: cleanup some functions
        intel_rapl: abstract register access operations
        intel_rapl: abstract register address
        intel_rapl: introduce struct rapl_if_private
        intel_rapl: introduce intel_rapl.h
        intel_rapl: remove hardcoded register index
        intel_rapl: use reg instead of msr
        cpufreq: imx-cpufreq-dt: Add i.MX8MN support
        ...
      d0411ec8
    • Linus Torvalds's avatar
      Merge tag 'acpi-5.3-rc1-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm · 4b09ddbc
      Linus Torvalds authored
      Pull more ACPI updates from Rafael Wysocki:
       "These get rid of two clang warnings, add a new quirk mechanism to the
        ACPI backlight driver (and apply it to one machine) and update the
        table load object initialization in ACPICA (this is a replacement for
        a previously reverted ACPICA commit).
      
        Specifics:
      
         - Make ACPI table loading work more consistently regardless of the
           exact mechanism used for loading a table (Erik Schmauss).
      
         - Get rid of two clang warnings (Arnd Bergmann).
      
         - Add new quirk mechanism to the ACPI backlight driver and use it to
           add a quirk for PB Easynote MZ35 (Hans de Goede)"
      
      * tag 'acpi-5.3-rc1-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
        ACPI: video: Add new hw_changes_brightness quirk, set it on PB Easynote MZ35
        ACPI: fix false-positive -Wuninitialized warning
        ACPI: blacklist: fix clang warning for unused DMI table
        ACPICA: Update table load object initialization
      4b09ddbc
    • Linus Torvalds's avatar
      Merge branch 'floppy' · 47d6a760
      Linus Torvalds authored
      
      
      Merge floppy ioctl verification fixes from Denis Efremov.
      
      This also marks the floppy driver as orphaned - it turns out that Jiri
      no longer has working hardware.
      
      Actual working physical floppy hardware is getting hard to find, and
      while Willy was able to test this, I think the driver can be considered
      pretty much dead from an actual hardware standpoint.  The hardware that
      is still sold seems to be mainly USB-based, which doesn't use this
      legacy driver at all.
      
      The old floppy disk controller is still emulated in various VM
      environments, so the driver isn't going away, but let's see if anybody
      is interested to step up to maintain it.
      
      The lack of hardware also likely means that the ioctl range verification
      fixes are probably mostly relevant to anybody using floppies in a
      virtual environment.  Which is probably also going away in favor of USB
      storage emulation, but who knows.
      
      Will Decon reviewed the patches but I'm not rebasing them just for that,
      so I'll add a
      Reviewed-by: default avatarWill Deacon <will@kernel.org>
      
      here instead.
      
      * floppy:
        MAINTAINERS: mark floppy.c orphaned
        floppy: fix out-of-bounds read in copy_buffer
        floppy: fix invalid pointer dereference in drive_name
        floppy: fix out-of-bounds read in next_valid_format
        floppy: fix div-by-zero in setup_format_params
      47d6a760
    • Jiri Kosina's avatar
      MAINTAINERS: mark floppy.c orphaned · be2ece49
      Jiri Kosina authored
      
      
      I volunteered myself to maintain it quite some time ago back when I
      fixed the concurrency issues which exhibited itself only with
      VM-emulated devices, and at the same time I still had the physical 3.5"
      reader to test all the changes.
      
      The reader doesn't work any more though, so I guess it's time to step
      down from this super-prestigious role :p and mark floppy.c as Orphaned.
      Signed-off-by: default avatarJiri Kosina <jkosina@suse.cz>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      be2ece49
    • Rafael J. Wysocki's avatar
      Merge branches 'acpi-misc' and 'acpi-video' · 2c66a5b5
      Rafael J. Wysocki authored
      * acpi-misc:
        ACPI: fix false-positive -Wuninitialized warning
        ACPI: blacklist: fix clang warning for unused DMI table
      
      * acpi-video:
        ACPI: video: Add new hw_changes_brightness quirk, set it on PB Easynote MZ35
      2c66a5b5
    • Rafael J. Wysocki's avatar
      Merge branch 'pm-cpufreq' · 918e162e
      Rafael J. Wysocki authored
      * pm-cpufreq:
        cpufreq: Make cpufreq_generic_init() return void
        cpufreq: imx-cpufreq-dt: Add i.MX8MN support
        cpufreq: Add QoS requests for userspace constraints
        cpufreq: intel_pstate: Reuse refresh_frequency_limits()
        cpufreq: Register notifiers with the PM QoS framework
        PM / QoS: Add support for MIN/MAX frequency constraints
        PM / QOS: Pass request type to dev_pm_qos_read_value()
        PM / QOS: Rename __dev_pm_qos_read_value() and dev_pm_qos_raw_read_value()
        PM / QOS: Pass request type to dev_pm_qos_{add|remove}_notifier()
      918e162e
  3. 17 Jul, 2019 17 commits
    • Denis Efremov's avatar
      floppy: fix out-of-bounds read in copy_buffer · da99466a
      Denis Efremov authored
      
      
      This fixes a global out-of-bounds read access in the copy_buffer
      function of the floppy driver.
      
      The FDDEFPRM ioctl allows one to set the geometry of a disk.  The sect
      and head fields (unsigned int) of the floppy_drive structure are used to
      compute the max_sector (int) in the make_raw_rw_request function.  It is
      possible to overflow the max_sector.  Next, max_sector is passed to the
      copy_buffer function and used in one of the memcpy calls.
      
      An unprivileged user could trigger the bug if the device is accessible,
      but requires a floppy disk to be inserted.
      
      The patch adds the check for the .sect * .head multiplication for not
      overflowing in the set_geometry function.
      
      The bug was found by syzkaller.
      Signed-off-by: default avatarDenis Efremov <efremov@ispras.ru>
      Tested-by: default avatarWilly Tarreau <w@1wt.eu>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      da99466a
    • Denis Efremov's avatar
      floppy: fix invalid pointer dereference in drive_name · 9b04609b
      Denis Efremov authored
      
      
      This fixes the invalid pointer dereference in the drive_name function of
      the floppy driver.
      
      The native_format field of the struct floppy_drive_params is used as
      floppy_type array index in the drive_name function.  Thus, the field
      should be checked the same way as the autodetect field.
      
      To trigger the bug, one could use a value out of range and set the drive
      parameters with the FDSETDRVPRM ioctl.  Next, FDGETDRVTYP ioctl should
      be used to call the drive_name.  A floppy disk is not required to be
      inserted.
      
      CAP_SYS_ADMIN is required to call FDSETDRVPRM.
      
      The patch adds the check for a value of the native_format field to be in
      the '0 <= x < ARRAY_SIZE(floppy_type)' range of the floppy_type array
      indices.
      
      The bug was found by syzkaller.
      Signed-off-by: default avatarDenis Efremov <efremov@ispras.ru>
      Tested-by: default avatarWilly Tarreau <w@1wt.eu>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      9b04609b
    • Denis Efremov's avatar
      floppy: fix out-of-bounds read in next_valid_format · 5635f897
      Denis Efremov authored
      
      
      This fixes a global out-of-bounds read access in the next_valid_format
      function of the floppy driver.
      
      The values from autodetect field of the struct floppy_drive_params are
      used as indices for the floppy_type array in the next_valid_format
      function 'floppy_type[DP->autodetect[probed_format]].sect'.
      
      To trigger the bug, one could use a value out of range and set the drive
      parameters with the FDSETDRVPRM ioctl.  A floppy disk is not required to
      be inserted.
      
      CAP_SYS_ADMIN is required to call FDSETDRVPRM.
      
      The patch adds the check for values of the autodetect field to be in the
      '0 <= x < ARRAY_SIZE(floppy_type)' range of the floppy_type array indices.
      
      The bug was found by syzkaller.
      Signed-off-by: default avatarDenis Efremov <efremov@ispras.ru>
      Tested-by: default avatarWilly Tarreau <w@1wt.eu>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      5635f897
    • Denis Efremov's avatar
      floppy: fix div-by-zero in setup_format_params · f3554aeb
      Denis Efremov authored
      
      
      This fixes a divide by zero error in the setup_format_params function of
      the floppy driver.
      
      Two consecutive ioctls can trigger the bug: The first one should set the
      drive geometry with such .sect and .rate values for the F_SECT_PER_TRACK
      to become zero.  Next, the floppy format operation should be called.
      
      A floppy disk is not required to be inserted.  An unprivileged user
      could trigger the bug if the device is accessible.
      
      The patch checks F_SECT_PER_TRACK for a non-zero value in the
      set_geometry function.  The proper check should involve a reasonable
      upper limit for the .sect and .rate fields, but it could change the
      UAPI.
      
      The patch also checks F_SECT_PER_TRACK in the setup_format_params, and
      cancels the formatting operation in case of zero.
      
      The bug was found by syzkaller.
      Signed-off-by: default avatarDenis Efremov <efremov@ispras.ru>
      Tested-by: default avatarWilly Tarreau <w@1wt.eu>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      f3554aeb
    • Linus Torvalds's avatar
      Merge tag 'platform-drivers-x86-v5.3-2' of git://git.infradead.org/linux-platform-drivers-x86 · 22051d9c
      Linus Torvalds authored
      Pull another x86 platform driver update from Andy Shevchenko:
       "Provide better naming for ABI, i.e. tell that we have fan boost mode.
      
        It won't break any ABI, but has to be done now to avoid confusion in
        the future"
      
      * tag 'platform-drivers-x86-v5.3-2' of git://git.infradead.org/linux-platform-drivers-x86:
        platform/x86: asus: Rename "fan mode" to "fan boost mode"
      22051d9c
    • Linus Torvalds's avatar
      Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux · aac09ce2
      Linus Torvalds authored
      Pull thermal management updates from Zhang Rui:
      
       - Convert thermal documents to ReST (Mauro Carvalho Chehab)
      
       - Fix a cyclic depedency in between thermal core and governors (Daniel
         Lezcano)
      
       - Fix processor_thermal_device driver to re-evaluate power limits after
         resume (Srinivas Pandruvada, Zhang Rui)
      
      * 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux:
        drivers: thermal: processor_thermal_device: Fix build warning
        docs: thermal: convert to ReST
        thermal/drivers/core: Use governor table to initialize
        thermal/drivers/core: Add init section table for self-encapsulation
        drivers: thermal: processor_thermal: Read PPCC on resume
      aac09ce2
    • Linus Torvalds's avatar
      Merge tag 'gpio-v5.3-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio · c3c08f93
      Linus Torvalds authored
      Pull GPIO fixes from Linus Walleij:
      
       - Revert a SPIO GPIO fix that didn't fix anything but instead created
         new problems.
      
       - Remove the EM GPIO irqdomain in a safe manner.
      
       - Fix a memory leak in the gpio quirks.
      
       - Make the DaVinci error path silent on probe deferral.
      
      * tag 'gpio-v5.3-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
        Revert "gpio/spi: Fix spi-gpio regression on active high CS"
        gpio: em: remove the gpiochip before removing the irq domain
        gpiolib: of: fix a memory leak in of_gpio_flags_quirks()
        gpio: davinci: silence error prints in case of EPROBE_DEFER
      c3c08f93
    • Linus Torvalds's avatar
      Merge tag 'hwlock-v5.3' of git://github.com/andersson/remoteproc · 57ab5f74
      Linus Torvalds authored
      Pull hwspinlock updates from Bjorn Andersson:
       "This contains support for hardware spinlock TI K3 AM65x and J721E
        family of SoCs, support for using hwspinlocks from atomic context and
        better error reporting when dealing with hardware disabled in
        DeviceTree"
      
      * tag 'hwlock-v5.3' of git://github.com/andersson/remoteproc:
        hwspinlock: add the 'in_atomic' API
        hwspinlock: document the hwspinlock 'raw' API
        hwspinlock: stm32: implement the relax() ops
        hwspinlock: ignore disabled device
        hwspinlock/omap: Add a trace during probe
        hwspinlock/omap: Add support for TI K3 SoCs
        dt-bindings: hwlock: Update OMAP binding for TI K3 SoCs
      57ab5f74
    • Linus Torvalds's avatar
      Merge tag 'rproc-v5.3' of git://github.com/andersson/remoteproc · fdcec004
      Linus Torvalds authored
      Pull remoteproc updates from Bjorn Andersson:
       "This adds support for the STM32 remoteproc, additional i.MX platforms
        with Cortex M4 remoteprocs and Qualcomm's QCS404 Compute DSP.
      
        Also initial support for vendor specific resource table entries and
        support for unprocessed Qualcomm firmware files"
      
      * tag 'rproc-v5.3' of git://github.com/andersson/remoteproc:
        remoteproc: stm32: fix building without ARM SMCC
        remoteproc: qcom: q6v5-mss: Fix build error without QCOM_MDT_LOADER
        remoteproc: copy parent dma_pfn_offset for vdev
        remoteproc: qcom: q6v5-mss: Support loading non-split images
        soc: qcom: mdt_loader: Support loading non-split images
        remoteproc: stm32: add an ST stm32_rproc driver
        dt-bindings: remoteproc: add bindings for stm32 remote processor driver
        dt-bindings: stm32: add bindings for ML-AHB interconnect
        remoteproc: Use struct_size() helper
        remoteproc: add vendor resources handling
        remoteproc: imx: Fix typo in "...
      fdcec004
    • Linus Torvalds's avatar
      Merge tag 'rpmsg-v5.3' of git://github.com/andersson/remoteproc · 7636b758
      Linus Torvalds authored
      Pull rpmsg updates from Bjorn Andersson:
       "This contains a DT binding update and a change to make the remote
        function of rpmsg_devices optional"
      
      * tag 'rpmsg-v5.3' of git://github.com/andersson/remoteproc:
        rpmsg: core: Make remove handler for rpmsg driver optional.
        dt-bindings: soc: qcom: Add remote-pid binding for GLINK SMEM
      7636b758
    • Linus Torvalds's avatar
      Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost · 3a1d5384
      Linus Torvalds authored
      Pull virtio, vhost updates from Michael Tsirkin:
       "Fixes, features, performance:
      
         - new iommu device
      
         - vhost guest memory access using vmap (just meta-data for now)
      
         - minor fixes"
      
      * tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
        virtio-mmio: add error check for platform_get_irq
        scsi: virtio_scsi: Use struct_size() helper
        iommu/virtio: Add event queue
        iommu/virtio: Add probe request
        iommu: Add virtio-iommu driver
        PCI: OF: Initialize dev->fwnode appropriately
        of: Allow the iommu-map property to omit untranslated devices
        dt-bindings: virtio: Add virtio-pci-iommu node
        dt-bindings: virtio-mmio: Add IOMMU description
        vhost: fix clang build warning
        vhost: access vq metadata through kernel virtual address
        vhost: factor out setting vring addr and num
        vhost: introduce helpers to get the size of metadata area
        vhost: rename vq_iotlb_prefetch() to vq_meta_prefetch()
        vh...
      3a1d5384
    • Linus Torvalds's avatar
      Merge tag 'vfio-v5.3-rc1' of git://github.com/awilliam/linux-vfio · 37d4607e
      Linus Torvalds authored
      Pull VFIO updates from Alex Williamson:
      
       - Static symbol cleanup in mdev samples (Kefeng Wang)
      
       - Use vma help in nvlink code (Peng Hao)
      
       - Remove unused code in mbochs sample (YueHaibing)
      
       - Send uevents around mdev registration (Alex Williamson)
      
      * tag 'vfio-v5.3-rc1' of git://github.com/awilliam/linux-vfio:
        mdev: Send uevents around parent device registration
        sample/mdev/mbochs: remove set but not used variable 'mdev_state'
        vfio: vfio_pci_nvlink2: use a vma helper function
        vfio-mdev/samples: make some symbols static
      37d4607e
    • Linus Torvalds's avatar
      Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux · 916f562f
      Linus Torvalds authored
      Pull clk updates from Stephen Boyd:
       "This round of clk driver and framework updates is heavy on the driver
        update side. The two main highlights in the core framework are the
        addition of an bulk clk_get API that handles optional clks and an
        extra debugfs file that tells the developer about the current parent
        of a clk.
      
        The driver updates are dominated by i.MX in the diffstat, but that is
        mostly because that SoC has started converting to the clk_hw style of
        clk registration. The next big update is in the Amlogic meson clk
        driver that gained some support for audio, cpu, and temperature clks
        while fixing some PLL issues. Finally, the biggest thing that stands
        out is the conversion of a large part of the Allwinner sunxi-ng driver
        to the new clk parent scheme that uses less strings and more pointer
        comparisons to match clk parents and children up.
      
        In general, it looks like we have a lot of little fixes and tweaks
        here and there to clk data along with the normal addition of a handful
        of new drivers and a couple new core framework features.
      
        Core:
         - Add a 'clk_parent' file in clk debugfs
         - Add a clk_bulk_get_optional() API (with devm too)
      
        New Drivers:
         - Support gated clk controller on MIPS based BCM63XX SoCs
         - Support SiLabs Si5341 and Si5340 chips
         - Support for CPU clks on Raspberry Pi devices
         - Audsys clock driver for MediaTek MT8516 SoCs
      
        Updates:
         - Convert a large portion of the Allwinner sunxi-ng driver to new clk parent scheme
         - Small frequency support for SiLabs Si544 chips
         - Slow clk support for AT91 SAM9X60 SoCs
         - Remove dead code in various clk drivers (-Wunused)
         - Support for Marvell 98DX1135 SoCs
         - Get duty cycle of generic pwm clks
         - Improvement in mmc phase calculation and cleanup of some rate defintions
         - Switch i.MX6 and i.MX7 clock drivers to clk_hw based APIs
         - Add GPIO, SNVS and GIC clocks for i.MX8 drivers
         - Mark imx6sx/ul/ull/sll MMDC_P1_IPG and imx8mm DRAM_APB as critical clock
         - Correct imx7ulp nic1_bus_clk and imx8mm audio_pll2_clk clock setting
         - Add clks for new Exynos5422 Dynamic Memory Controller driver
         - Clock definition for Exynos4412 Mali
         - Add CMM (Color Management Module) clocks on Renesas R-Car H3, M3-N, E3, and D3
         - Add TPU (Timer Pulse Unit / PWM) clocks on Renesas RZ/G2M
         - Support for 32 bit clock IDs in TI's sci-clks for J721e SoCs
         - TI clock probing done from DT by default instead of firmware
         - Fix Amlogic Meson mpll fractional part and spread sprectrum issues
         - Add Amlogic meson8 audio clocks
         - Add Amlogic g12a temperature sensors clocks
         - Add Amlogic g12a and g12b cpu clocks
         - Add TPU (Timer Pulse Unit / PWM) clocks on Renesas R-Car H3, M3-W, and M3-N
         - Add CMM (Color Management Module) clocks on Renesas R-Car M3-W
         - Add Clock Domain support on Renesas RZ/N1"
      
      * tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (190 commits)
        clk: consoldiate the __clk_get_hw() declarations
        clk: sprd: Add check for return value of sprd_clk_regmap_init()
        clk: lochnagar: Update DT binding doc to include the primary SPDIF MCLK
        clk: Add Si5341/Si5340 driver
        dt-bindings: clock: Add silabs,si5341
        clk: clk-si544: Implement small frequency change support
        clk: add BCM63XX gated clock controller driver
        devicetree: document the BCM63XX gated clock bindings
        clk: at91: sckc: use dedicated functions to unregister clock
        clk: at91: sckc: improve error path for sama5d4 sck registration
        clk: at91: sckc: remove unnecessary line
        clk: at91: sckc: improve error path for sam9x5 sck register
        clk: at91: sckc: add support to free slow clock osclillator
        clk: at91: sckc: add support to free slow rc oscillator
        clk: at91: sckc: add support to free slow oscillator
        clk: rockchip: export HDMIPHY clock on rk3228
        clk: rockchip: add watchdog pclk on rk3328
        clk: rockchip: add clock id for hdmi_phy special clock on rk3228
        clk: rockchip: add clock id for watchdog pclk on rk3328
        clk: at91: sckc: add support for SAM9X60
        ...
      916f562f
    • Linus Torvalds's avatar
      Merge tag 'rtc-5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux · edafb6fe
      Linus Torvalds authored
      Pull RTC updates from Alexandre Belloni:
       "A quiet cycle this time.
      
         - ds1307: properly handle oscillator failure flags
      
         - imx-sc: alarm support
      
         - pcf2123: alarm support, correct offset handling
      
         - sun6i: add R40 support
      
         - simplify getting the adapter of an i2c client"
      
      * tag 'rtc-5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (37 commits)
        rtc: wm831x: Add IRQF_ONESHOT flag
        rtc: stm32: remove one condition check in stm32_rtc_set_alarm()
        rtc: pcf2123: Fix build error
        rtc: interface: Change type of 'count' from int to u64
        rtc: pcf8563: Clear event flags and disable interrupts before requesting irq
        rtc: pcf8563: Fix interrupt trigger method
        rtc: pcf2123: fix negative offset rounding
        rtc: pcf2123: add alarm support
        rtc: pcf2123: use %ptR
        rtc: pcf2123: port to regmap
        rtc: pcf2123: remove sysfs register view
        rtc: rx8025: simplify getting the adapter of a client
        rt...
      edafb6fe
    • Linus Torvalds's avatar
      Merge tag 'dmaengine-5.3-rc1' of git://git.infradead.org/users/vkoul/slave-dma · 47ebe00b
      Linus Torvalds authored
      Pull dmaengine updates from Vinod Koul:
      
       - Add support in dmaengine core to do device node checks for DT devices
         and update bunch of drivers to use that and remove open coding from
         drivers
      
       - New driver/driver support for new hardware, namely:
           - MediaTek UART APDMA
           - Freescale i.mx7ulp edma2
           - Synopsys eDMA IP core version 0
           - Allwinner H6 DMA
      
       - Updates to axi-dma and support for interleaved cyclic transfers
      
       - Greg's debugfs return value check removals on drivers
      
       - Updates to stm32-dma, hsu, dw, pl330, tegra drivers
      
      * tag 'dmaengine-5.3-rc1' of git://git.infradead.org/users/vkoul/slave-dma: (68 commits)
        dmaengine: Revert "dmaengine: fsl-edma: add i.mx7ulp edma2 version support"
        dmaengine: at_xdmac: check for non-empty xfers_list before invoking callback
        Documentation: dmaengine: clean up description of dmatest usage
        dmaengine: tegra210-adma: remove PM_CLK dependency
        dmaengine: fsl-ed...
      47ebe00b
    • Linus Torvalds's avatar
      Merge tag 'mips_5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux · fa121bb3
      Linus Torvalds authored
      Pull MIPS updates from Paul Burton:
       "A light batch this time around but significant improvements for
        certain systems:
      
         - Removal of readq & writeq for MIPS32 kernels where they would
           simply BUG() anyway, allowing drivers or other code that #ifdefs on
           their presence to work properly.
      
         - Improvements for Ingenic JZ4740 systems, including support for the
           external memory controller & pinmuxing fixes for qi_lb60/NanoNote
           systems.
      
         - Improvements for Lantiq systems, in particular around SMP & IPIs.
      
         - DT updates for ralink/MediaTek MT7628a systems to probe & configure
           a bunch more devices.
      
         - Miscellaneous cleanups & build fixes"
      
      * tag 'mips_5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux: (30 commits)
        MIPS: fix some more fall through errors in arch/mips
        MIPS: perf events: handle switch statement falling through warnings
        mips/kprobes: Export kprobe_fault_handler()
        MAINTAINERS: Add myself as Ingenic SoCs maintainer
        MIPS: ralink: mt7628a.dtsi: Add watchdog controller DT node
        MIPS: ralink: mt7628a.dtsi: Add SPI controller DT node
        MIPS: ralink: mt7628a.dtsi: Add GPIO controller DT node
        MIPS: ralink: mt7628a.dtsi: Add pinctrl DT properties to the UART nodes
        MIPS: ralink: mt7628a.dtsi: Add pinmux DT node
        MIPS: ralink: mt7628a.dtsi: Add SPDX GPL-2.0 license identifier
        MIPS: lantiq: Add SMP support for lantiq interrupt controller
        MIPS: lantiq: Shorten register names, remove unused macros
        MIPS: lantiq: Fix bitfield masking
        MIPS: lantiq: Remove unused macros
        MIPS: lantiq: Fix attributes of of_device_id structure
        MIPS: lantiq: Change variables to the same type as the source
        MIPS: lantiq: Move macro directly to iomem function
        mips: Remove q-accessors from non-64bit platforms
        FDDI: defza: Include linux/io-64-nonatomic-lo-hi.h
        MIPS: configs: Remove useless UEVENT_HELPER_PATH
        ...
      fa121bb3
    • Linus Torvalds's avatar
      Merge tag 'h8300-for-linus-20190617' of git://git.sourceforge.jp/gitroot/uclinux-h8/linux · 7d4901c0
      Linus Torvalds authored
      Pull h8300 update from Yoshinori Sato:
       "Remove unused barrier defines"
      
      * tag 'h8300-for-linus-20190617' of git://git.sourceforge.jp/gitroot/uclinux-h8/linux:
        H8300: remove unused barrier defines
      7d4901c0