linux-stable.git/arch/microblaze/kernel, branch v5.5

microblaze: use pgtable-nopmd instead of 4level-fixup

2019-12-05T03:44:15+00:00

microblaze has only two-level page tables and can use pgtable-nopmd and
folding of the upper layers.

Replace usage of include/asm-generic/4level-fixup.h and explicit
definition of __PAGETABLE_PMD_FOLDED in microblaze with
include/asm-generic/pgtable-nopmd.h and adjust page table manipulation
macros and functions accordingly.

Link: http://lkml.kernel.org/r/1572938135-31886-7-git-send-email-rppt@kernel.org
Signed-off-by: Mike Rapoport 
Cc: Anatoly Pugachev 
Cc: Anton Ivanov 
Cc: Arnd Bergmann 
Cc: "David S. Miller" 
Cc: Geert Uytterhoeven 
Cc: Greentime Hu 
Cc: Greg Ungerer 
Cc: Helge Deller 
Cc: "James E.J. Bottomley" 
Cc: Jeff Dike 
Cc: "Kirill A. Shutemov" 
Cc: Mark Salter 
Cc: Matt Turner 
Cc: Michal Simek 
Cc: Peter Rosin 
Cc: Richard Weinberger 
Cc: Rolf Eike Beer 
Cc: Russell King 
Cc: Russell King 
Cc: Sam Creasey 
Cc: Vincent Chen 
Cc: Vineet Gupta 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux; tag 'dma-mapping-5.5' of git://git.infradead.org/users/hch/dma-mapping

2019-11-28T19:16:43+00:00

Pull dma-mapping updates from Christoph Hellwig:

 - improve dma-debug scalability (Eric Dumazet)

 - tiny dma-debug cleanup (Dan Carpenter)

 - check for vmap memory in dma_map_single (Kees Cook)

 - check for dma_addr_t overflows in dma-direct when using DMA offsets
   (Nicolas Saenz Julienne)

 - switch the x86 sta2x11 SOC to use more generic DMA code (Nicolas
   Saenz Julienne)

 - fix arm-nommu dma-ranges handling (Vladimir Murzin)

 - use __initdata in CMA (Shyam Saini)

 - replace the bus dma mask with a limit (Nicolas Saenz Julienne)

 - merge the remapping helpers into the main dma-direct flow (me)

 - switch xtensa to the generic dma remap handling (me)

 - various cleanups around dma_capable (me)

 - remove unused dev arguments to various dma-noncoherent helpers (me)

* 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux:

* tag 'dma-mapping-5.5' of git://git.infradead.org/users/hch/dma-mapping: (22 commits)
  dma-mapping: treat dev->bus_dma_mask as a DMA limit
  dma-direct: exclude dma_direct_map_resource from the min_low_pfn check
  dma-direct: don't check swiotlb=force in dma_direct_map_resource
  dma-debug: clean up put_hash_bucket()
  powerpc: remove support for NULL dev in __phys_to_dma / __dma_to_phys
  dma-direct: avoid a forward declaration for phys_to_dma
  dma-direct: unify the dma_capable definitions
  dma-mapping: drop the dev argument to arch_sync_dma_for_*
  x86/PCI: sta2x11: use default DMA address translation
  dma-direct: check for overflows on 32 bit DMA addresses
  dma-debug: increase HASH_SIZE
  dma-debug: reorder struct dma_debug_entry fields
  xtensa: use the generic uncached segment support
  dma-mapping: merge the generic remapping helpers into dma-direct
  dma-direct: provide mmap and get_sgtable method overrides
  dma-direct: remove the dma_handle argument to __dma_direct_alloc_pages
  dma-direct: remove __dma_direct_free_pages
  usb: core: Remove redundant vmap checks
  kernel: dma-contiguous: mark CMA parameters __initdata/__initconst
  dma-debug: add a schedule point in debug_dma_dump_mappings()
  ...

Merge tag 'microblaze-v5.5-rc1' of git://git.monstr.eu/linux-2.6-microblaze

2019-11-27T19:30:55+00:00

Pull Microblaze updates from Michal Simek:

 - extend DTB space

 - defconfig update

 - clean up rescheduling logic

 - enable SPARSE_IRQ

* tag 'microblaze-v5.5-rc1' of git://git.monstr.eu/linux-2.6-microblaze:
  microblaze: Increase max dtb size to 64K from 32K
  microblaze: Enable SPARSE_IRQ
  microblaze: defconfig: Enable devtmps and tmpfs
  microblaze: entry: Remove unneeded need_resched() loop

dma-mapping: drop the dev argument to arch_sync_dma_for_*

2019-11-20T19:31:38+00:00

These are pure cache maintainance routines, so drop the unused
struct device argument.

Signed-off-by: Christoph Hellwig 
Suggested-by: Daniel Vetter

microblaze: Move EXCEPTION_TABLE to RO_DATA segment

2019-11-04T17:18:23+00:00

Since the EXCEPTION_TABLE is read-only, collapse it into RO_DATA.

Signed-off-by: Kees Cook 
Signed-off-by: Borislav Petkov 
Cc: Andy Lutomirski 
Cc: Arnd Bergmann 
Cc: Dave Hansen 
Cc: Geert Uytterhoeven 
Cc: Heiko Carstens 
Cc: linux-alpha@vger.kernel.org
Cc: linux-arch@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-c6x-dev@linux-c6x.org
Cc: linux-ia64@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: linux-s390@vger.kernel.org
Cc: Michael Ellerman 
Cc: Michal Simek 
Cc: Rick Edgecombe 
Cc: Segher Boessenkool 
Cc: Will Deacon 
Cc: x86-ml 
Cc: Yoshinori Sato 
Link: https://lkml.kernel.org/r/20191029211351.13243-23-keescook@chromium.org

vmlinux.lds.h: Replace RW_DATA_SECTION with RW_DATA

2019-11-04T14:57:41+00:00

Rename RW_DATA_SECTION to RW_DATA. (Calling this a "section" is a lie,
since it's multiple sections and section flags cannot be applied to
the macro.)

Signed-off-by: Kees Cook 
Signed-off-by: Borislav Petkov 
Acked-by: Heiko Carstens  # s390
Acked-by: Geert Uytterhoeven  # m68k
Cc: Andy Lutomirski 
Cc: Arnd Bergmann 
Cc: Dave Hansen 
Cc: linux-alpha@vger.kernel.org
Cc: linux-arch@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-c6x-dev@linux-c6x.org
Cc: linux-ia64@vger.kernel.org
Cc: linux-s390@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: Michael Ellerman 
Cc: Michal Simek 
Cc: Rick Edgecombe 
Cc: Segher Boessenkool 
Cc: Will Deacon 
Cc: x86-ml 
Cc: Yoshinori Sato 
Link: https://lkml.kernel.org/r/20191029211351.13243-14-keescook@chromium.org

vmlinux.lds.h: Replace RODATA with RO_DATA

2019-11-04T14:53:15+00:00

There's no reason to keep the RODATA macro: replace the callers with
the expected RO_DATA macro.

Signed-off-by: Kees Cook 
Signed-off-by: Borislav Petkov 
Cc: Andy Lutomirski 
Cc: Arnd Bergmann 
Cc: Dave Hansen 
Cc: linux-alpha@vger.kernel.org
Cc: linux-arch@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-c6x-dev@linux-c6x.org
Cc: linux-ia64@vger.kernel.org
Cc: linux-s390@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: Michael Ellerman 
Cc: Michal Simek 
Cc: Rick Edgecombe 
Cc: Segher Boessenkool 
Cc: Will Deacon 
Cc: x86-ml 
Cc: Yoshinori Sato 
Link: https://lkml.kernel.org/r/20191029211351.13243-12-keescook@chromium.org

vmlinux.lds.h: Move NOTES into RO_DATA

2019-11-04T14:34:41+00:00

The .notes section should be non-executable read-only data. As such,
move it to the RO_DATA macro instead of being per-architecture defined.

Signed-off-by: Kees Cook 
Signed-off-by: Borislav Petkov 
Acked-by: Heiko Carstens  # s390
Cc: Andy Lutomirski 
Cc: Arnd Bergmann 
Cc: Dave Hansen 
Cc: linux-alpha@vger.kernel.org
Cc: linux-arch@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-c6x-dev@linux-c6x.org
Cc: linux-ia64@vger.kernel.org
Cc: linux-s390@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: Michael Ellerman 
Cc: Michal Simek 
Cc: Rick Edgecombe 
Cc: Segher Boessenkool 
Cc: Will Deacon 
Cc: x86-ml 
Cc: Yoshinori Sato 
Link: https://lkml.kernel.org/r/20191029211351.13243-11-keescook@chromium.org

microblaze: Increase max dtb size to 64K from 32K

2019-10-25T06:15:15+00:00

This patch increases max dtb size to 64K from 32K. This fixes the issue  of
kernel hang with larger dtb of size greater than 32KB.

Signed-off-by: Siva Durga Prasad Paladugu 
Signed-off-by: Michal Simek

microblaze: entry: Remove unneeded need_resched() loop

2019-10-08T09:03:34+00:00

Since the enabling and disabling of IRQs within preempt_schedule_irq()
is contained in a need_resched() loop, we don't need the outer arch
code loop.

Signed-off-by: Valentin Schneider 
Cc: Michal Simek 
Signed-off-by: Michal Simek