Commit Graph

1544 Commits

Author SHA1 Message Date
Christoph Hellwig
fe557319aa maccess: rename probe_kernel_{read,write} to copy_{from,to}_kernel_nofault
Better describe what these functions do.

Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-06-17 10:57:41 -07:00
Masahiro Yamada
a7f7f6248d treewide: replace '---help---' in Kconfig files with 'help'
Since commit 84af7a6194 ("checkpatch: kconfig: prefer 'help' over
'---help---'"), the number of '---help---' has been gradually
decreasing, but there are still more than 2400 instances.

This commit finishes the conversion. While I touched the lines,
I also fixed the indentation.

There are a variety of indentation styles found.

  a) 4 spaces + '---help---'
  b) 7 spaces + '---help---'
  c) 8 spaces + '---help---'
  d) 1 space + 1 tab + '---help---'
  e) 1 tab + '---help---'    (correct indentation)
  f) 1 tab + 1 space + '---help---'
  g) 1 tab + 2 spaces + '---help---'

In order to convert all of them to 1 tab + 'help', I ran the
following commend:

  $ find . -name 'Kconfig*' | xargs sed -i 's/^[[:space:]]*---help---/\thelp/'

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2020-06-14 01:57:21 +09:00
Mike Rapoport
e31cf2f4ca mm: don't include asm/pgtable.h if linux/mm.h is already included
Patch series "mm: consolidate definitions of page table accessors", v2.

The low level page table accessors (pXY_index(), pXY_offset()) are
duplicated across all architectures and sometimes more than once.  For
instance, we have 31 definition of pgd_offset() for 25 supported
architectures.

Most of these definitions are actually identical and typically it boils
down to, e.g.

static inline unsigned long pmd_index(unsigned long address)
{
        return (address >> PMD_SHIFT) & (PTRS_PER_PMD - 1);
}

static inline pmd_t *pmd_offset(pud_t *pud, unsigned long address)
{
        return (pmd_t *)pud_page_vaddr(*pud) + pmd_index(address);
}

These definitions can be shared among 90% of the arches provided
XYZ_SHIFT, PTRS_PER_XYZ and xyz_page_vaddr() are defined.

For architectures that really need a custom version there is always
possibility to override the generic version with the usual ifdefs magic.

These patches introduce include/linux/pgtable.h that replaces
include/asm-generic/pgtable.h and add the definitions of the page table
accessors to the new header.

This patch (of 12):

The linux/mm.h header includes <asm/pgtable.h> to allow inlining of the
functions involving page table manipulations, e.g.  pte_alloc() and
pmd_alloc().  So, there is no point to explicitly include <asm/pgtable.h>
in the files that include <linux/mm.h>.

The include statements in such cases are remove with a simple loop:

	for f in $(git grep -l "include <linux/mm.h>") ; do
		sed -i -e '/include <asm\/pgtable.h>/ d' $f
	done

Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Cain <bcain@codeaurora.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Chris Zankel <chris@zankel.net>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Greentime Hu <green.hu@gmail.com>
Cc: Greg Ungerer <gerg@linux-m68k.org>
Cc: Guan Xuetao <gxt@pku.edu.cn>
Cc: Guo Ren <guoren@kernel.org>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Helge Deller <deller@gmx.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Ley Foon Tan <ley.foon.tan@intel.com>
Cc: Mark Salter <msalter@redhat.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Matt Turner <mattst88@gmail.com>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Nick Hu <nickhu@andestech.com>
Cc: Paul Walmsley <paul.walmsley@sifive.com>
Cc: Richard Weinberger <richard@nod.at>
Cc: Rich Felker <dalias@libc.org>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Stafford Horne <shorne@gmail.com>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Vincent Chen <deanbo422@gmail.com>
Cc: Vineet Gupta <vgupta@synopsys.com>
Cc: Will Deacon <will@kernel.org>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Link: http://lkml.kernel.org/r/20200514170327.31389-1-rppt@kernel.org
Link: http://lkml.kernel.org/r/20200514170327.31389-2-rppt@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-06-09 09:39:13 -07:00
Linus Torvalds
7ae77150d9 powerpc updates for 5.8
- Support for userspace to send requests directly to the on-chip GZIP
    accelerator on Power9.
 
  - Rework of our lockless page table walking (__find_linux_pte()) to make it
    safe against parallel page table manipulations without relying on an IPI for
    serialisation.
 
  - A series of fixes & enhancements to make our machine check handling more
    robust.
 
  - Lots of plumbing to add support for "prefixed" (64-bit) instructions on
    Power10.
 
  - Support for using huge pages for the linear mapping on 8xx (32-bit).
 
  - Remove obsolete Xilinx PPC405/PPC440 support, and an associated sound driver.
 
  - Removal of some obsolete 40x platforms and associated cruft.
 
  - Initial support for booting on Power10.
 
  - Lots of other small features, cleanups & fixes.
 
 Thanks to:
   Alexey Kardashevskiy, Alistair Popple, Andrew Donnellan, Andrey Abramov,
   Aneesh Kumar K.V, Balamuruhan S, Bharata B Rao, Bulent Abali, Cédric Le
   Goater, Chen Zhou, Christian Zigotzky, Christophe JAILLET, Christophe Leroy,
   Dmitry Torokhov, Emmanuel Nicolet, Erhard F., Gautham R. Shenoy, Geoff Levand,
   George Spelvin, Greg Kurz, Gustavo A. R. Silva, Gustavo Walbon, Haren Myneni,
   Hari Bathini, Joel Stanley, Jordan Niethe, Kajol Jain, Kees Cook, Leonardo
   Bras, Madhavan Srinivasan., Mahesh Salgaonkar, Markus Elfring, Michael
   Neuling, Michal Simek, Nathan Chancellor, Nathan Lynch, Naveen N. Rao,
   Nicholas Piggin, Oliver O'Halloran, Paul Mackerras, Pingfan Liu, Qian Cai, Ram
   Pai, Raphael Moreira Zinsly, Ravi Bangoria, Sam Bobroff, Sandipan Das, Segher
   Boessenkool, Stephen Rothwell, Sukadev Bhattiprolu, Tyrel Datwyler, Wolfram
   Sang, Xiongfeng Wang.
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Merge tag 'powerpc-5.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

Pull powerpc updates from Michael Ellerman:

 - Support for userspace to send requests directly to the on-chip GZIP
   accelerator on Power9.

 - Rework of our lockless page table walking (__find_linux_pte()) to
   make it safe against parallel page table manipulations without
   relying on an IPI for serialisation.

 - A series of fixes & enhancements to make our machine check handling
   more robust.

 - Lots of plumbing to add support for "prefixed" (64-bit) instructions
   on Power10.

 - Support for using huge pages for the linear mapping on 8xx (32-bit).

 - Remove obsolete Xilinx PPC405/PPC440 support, and an associated sound
   driver.

 - Removal of some obsolete 40x platforms and associated cruft.

 - Initial support for booting on Power10.

 - Lots of other small features, cleanups & fixes.

Thanks to: Alexey Kardashevskiy, Alistair Popple, Andrew Donnellan,
Andrey Abramov, Aneesh Kumar K.V, Balamuruhan S, Bharata B Rao, Bulent
Abali, Cédric Le Goater, Chen Zhou, Christian Zigotzky, Christophe
JAILLET, Christophe Leroy, Dmitry Torokhov, Emmanuel Nicolet, Erhard F.,
Gautham R. Shenoy, Geoff Levand, George Spelvin, Greg Kurz, Gustavo A.
R. Silva, Gustavo Walbon, Haren Myneni, Hari Bathini, Joel Stanley,
Jordan Niethe, Kajol Jain, Kees Cook, Leonardo Bras, Madhavan
Srinivasan., Mahesh Salgaonkar, Markus Elfring, Michael Neuling, Michal
Simek, Nathan Chancellor, Nathan Lynch, Naveen N. Rao, Nicholas Piggin,
Oliver O'Halloran, Paul Mackerras, Pingfan Liu, Qian Cai, Ram Pai,
Raphael Moreira Zinsly, Ravi Bangoria, Sam Bobroff, Sandipan Das, Segher
Boessenkool, Stephen Rothwell, Sukadev Bhattiprolu, Tyrel Datwyler,
Wolfram Sang, Xiongfeng Wang.

* tag 'powerpc-5.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (299 commits)
  powerpc/pseries: Make vio and ibmebus initcalls pseries specific
  cxl: Remove dead Kconfig options
  powerpc: Add POWER10 architected mode
  powerpc/dt_cpu_ftrs: Add MMA feature
  powerpc/dt_cpu_ftrs: Enable Prefixed Instructions
  powerpc/dt_cpu_ftrs: Advertise support for ISA v3.1 if selected
  powerpc: Add support for ISA v3.1
  powerpc: Add new HWCAP bits
  powerpc/64s: Don't set FSCR bits in INIT_THREAD
  powerpc/64s: Save FSCR to init_task.thread.fscr after feature init
  powerpc/64s: Don't let DT CPU features set FSCR_DSCR
  powerpc/64s: Don't init FSCR_DSCR in __init_FSCR()
  powerpc/32s: Fix another build failure with CONFIG_PPC_KUAP_DEBUG
  powerpc/module_64: Use special stub for _mcount() with -mprofile-kernel
  powerpc/module_64: Simplify check for -mprofile-kernel ftrace relocations
  powerpc/module_64: Consolidate ftrace code
  powerpc/32: Disable KASAN with pages bigger than 16k
  powerpc/uaccess: Don't set KUEP by default on book3s/32
  powerpc/uaccess: Don't set KUAP by default on book3s/32
  powerpc/8xx: Reduce time spent in allow_user_access() and friends
  ...
2020-06-05 12:39:30 -07:00
Linus Torvalds
faa392181a drm pull for 5.8-rc1
core:
 - uapi: error out EBUSY when existing master
 - uapi: rework SET/DROP MASTER permission handling
 - remove drm_pci.h
 - drm_pci* are now legacy
 - introduced managed DRM resources
 - subclassing support for drm_framebuffer
 - simple encoder helper
 - edid improvements
 - vblank + writeback documentation improved
 - drm/mm - optimise tree searches
 - port drivers to use devm_drm_dev_alloc
 
 dma-buf:
 - add flag for p2p buffer support
 
 mst:
 - ACT timeout improvements
 - remove drm_dp_mst_has_audio
 - don't use 2nd TX slot - spec recommends against it
 
 bridge:
 - dw-hdmi various improvements
 - chrontel ch7033 support
 - fix stack issues with old gcc
 
 hdmi:
 - add unpack function for drm infoframe
 
 fbdev:
 - misc fbdev driver fixes
 
 i915:
 - uapi: global sseu pinning
 - uapi: OA buffer polling
 - uapi: remove generated perf code
 - uapi: per-engine default property values in sysfs
 - Tigerlake GEN12 enabled.
 - Lots of gem refactoring
 - Tigerlake enablement patches
 - move to drm_device logging
 - Icelake gamma HW readout
 - push MST link retrain to hotplug work
 - bandwidth atomic helpers
 - ICL fixes
 - RPS/GT refactoring
 - Cherryview full-ppgtt support
 - i915 locking guidelines documented
 - require linear fb stride to be 512 multiple on gen9
 - Tigerlake SAGV support
 
 amdgpu:
 - uapi: encrypted GPU memory handling
 - uapi: add MEM_SYNC IB flag
 - p2p dma-buf support
 - export VRAM dma-bufs
 - FRU chip access support
 - RAS/SR-IOV updates
 - Powerplay locking fixes
 - VCN DPG (powergating) enablement
 - GFX10 clockgating fixes
 - DC fixes
 - GPU reset fixes
 - navi SDMA fix
 - expose FP16 for modesetting
 - DP 1.4 compliance fixes
 - gfx10 soft recovery
 - Improved Critical Thermal Faults handling
 - resizable BAR on gmc10
 
 amdkfd:
 - uapi: GWS resource management
 - track GPU memory per process
 - report PCI domain in topology
 
 radeon:
 - safe reg list generator fixes
 
 nouveau:
 - HD audio fixes on recent systems
 - vGPU detection (fail probe if we're on one, for now)
 - Interlaced mode fixes (mostly avoidance on Turing, which doesn't support it)
 - SVM improvements/fixes
 - NVIDIA format modifier support
 - Misc other fixes.
 
 adv7511:
 - HDMI SPDIF support
 
 ast:
 - allocate crtc state size
 - fix double assignment
 - fix suspend
 
 bochs:
 - drop connector register
 
 cirrus:
 - move to tiny drivers.
 
 exynos:
 - fix imported dma-buf mapping
 - enable runtime PM
 - fixes and cleanups
 
 mediatek:
 - DPI pin mode swap
 - config mipi_tx current/impedance
 
 lima:
 - devfreq + cooling device support
 - task handling improvements
 - runtime PM support
 
 pl111:
 - vexpress init improvements
 - fix module auto-load
 
 rcar-du:
 - DT bindings conversion to YAML
 - Planes zpos sanity check and fix
 - MAINTAINERS entry for LVDS panel driver
 
 mcde:
 - fix return value
 
 mgag200:
 - use managed config init
 
 stm:
 - read endpoints from DT
 
 vboxvideo:
 - use PCI managed functions
 - drop WC mtrr
 
 vkms:
 - enable cursor by default
 
 rockchip:
 - afbc support
 
 virtio:
 - various cleanups
 
 qxl:
 - fix cursor notify port
 
 hisilicon:
 - 128-byte stride alignment fix
 
 sun4i:
 - improved format handling
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Merge tag 'drm-next-2020-06-02' of git://anongit.freedesktop.org/drm/drm

Pull drm updates from Dave Airlie:
 "Highlights:

   - Core DRM had a lot of refactoring around managed drm resources to
     make drivers simpler.

   - Intel Tigerlake support is on by default

   - amdgpu now support p2p PCI buffer sharing and encrypted GPU memory

  Details:

  core:
   - uapi: error out EBUSY when existing master
   - uapi: rework SET/DROP MASTER permission handling
   - remove drm_pci.h
   - drm_pci* are now legacy
   - introduced managed DRM resources
   - subclassing support for drm_framebuffer
   - simple encoder helper
   - edid improvements
   - vblank + writeback documentation improved
   - drm/mm - optimise tree searches
   - port drivers to use devm_drm_dev_alloc

  dma-buf:
   - add flag for p2p buffer support

  mst:
   - ACT timeout improvements
   - remove drm_dp_mst_has_audio
   - don't use 2nd TX slot - spec recommends against it

  bridge:
   - dw-hdmi various improvements
   - chrontel ch7033 support
   - fix stack issues with old gcc

  hdmi:
   - add unpack function for drm infoframe

  fbdev:
   - misc fbdev driver fixes

  i915:
   - uapi: global sseu pinning
   - uapi: OA buffer polling
   - uapi: remove generated perf code
   - uapi: per-engine default property values in sysfs
   - Tigerlake GEN12 enabled.
   - Lots of gem refactoring
   - Tigerlake enablement patches
   - move to drm_device logging
   - Icelake gamma HW readout
   - push MST link retrain to hotplug work
   - bandwidth atomic helpers
   - ICL fixes
   - RPS/GT refactoring
   - Cherryview full-ppgtt support
   - i915 locking guidelines documented
   - require linear fb stride to be 512 multiple on gen9
   - Tigerlake SAGV support

  amdgpu:
   - uapi: encrypted GPU memory handling
   - uapi: add MEM_SYNC IB flag
   - p2p dma-buf support
   - export VRAM dma-bufs
   - FRU chip access support
   - RAS/SR-IOV updates
   - Powerplay locking fixes
   - VCN DPG (powergating) enablement
   - GFX10 clockgating fixes
   - DC fixes
   - GPU reset fixes
   - navi SDMA fix
   - expose FP16 for modesetting
   - DP 1.4 compliance fixes
   - gfx10 soft recovery
   - Improved Critical Thermal Faults handling
   - resizable BAR on gmc10

  amdkfd:
   - uapi: GWS resource management
   - track GPU memory per process
   - report PCI domain in topology

  radeon:
   - safe reg list generator fixes

  nouveau:
   - HD audio fixes on recent systems
   - vGPU detection (fail probe if we're on one, for now)
   - Interlaced mode fixes (mostly avoidance on Turing, which doesn't support it)
   - SVM improvements/fixes
   - NVIDIA format modifier support
   - Misc other fixes.

  adv7511:
   - HDMI SPDIF support

  ast:
   - allocate crtc state size
   - fix double assignment
   - fix suspend

  bochs:
   - drop connector register

  cirrus:
   - move to tiny drivers.

  exynos:
   - fix imported dma-buf mapping
   - enable runtime PM
   - fixes and cleanups

  mediatek:
   - DPI pin mode swap
   - config mipi_tx current/impedance

  lima:
   - devfreq + cooling device support
   - task handling improvements
   - runtime PM support

  pl111:
   - vexpress init improvements
   - fix module auto-load

  rcar-du:
   - DT bindings conversion to YAML
   - Planes zpos sanity check and fix
   - MAINTAINERS entry for LVDS panel driver

  mcde:
   - fix return value

  mgag200:
   - use managed config init

  stm:
   - read endpoints from DT

  vboxvideo:
   - use PCI managed functions
   - drop WC mtrr

  vkms:
   - enable cursor by default

  rockchip:
   - afbc support

  virtio:
   - various cleanups

  qxl:
   - fix cursor notify port

  hisilicon:
   - 128-byte stride alignment fix

  sun4i:
   - improved format handling"

* tag 'drm-next-2020-06-02' of git://anongit.freedesktop.org/drm/drm: (1401 commits)
  drm/amd/display: Fix potential integer wraparound resulting in a hang
  drm/amd/display: drop cursor position check in atomic test
  drm/amdgpu: fix device attribute node create failed with multi gpu
  drm/nouveau: use correct conflicting framebuffer API
  drm/vblank: Fix -Wformat compile warnings on some arches
  drm/amdgpu: Sync with VM root BO when switching VM to CPU update mode
  drm/amd/display: Handle GPU reset for DC block
  drm/amdgpu: add apu flags (v2)
  drm/amd/powerpay: Disable gfxoff when setting manual mode on picasso and raven
  drm/amdgpu: fix pm sysfs node handling (v2)
  drm/amdgpu: move gpu_info parsing after common early init
  drm/amdgpu: move discovery gfx config fetching
  drm/nouveau/dispnv50: fix runtime pm imbalance on error
  drm/nouveau: fix runtime pm imbalance on error
  drm/nouveau: fix runtime pm imbalance on error
  drm/nouveau/debugfs: fix runtime pm imbalance on error
  drm/nouveau/nouveau/hmm: fix migrate zero page to GPU
  drm/nouveau/nouveau/hmm: fix nouveau_dmem_chunk allocations
  drm/nouveau/kms/nv50-: Share DP SST mode_valid() handling with MST
  drm/nouveau/kms/nv50-: Move 8BPC limit for MST into nv50_mstc_get_modes()
  ...
2020-06-02 15:04:15 -07:00
Al Viro
9053fc91e3 omapfb: get rid of pointless access_ok() calls
address is passed only to copy_to_user()

Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2020-05-29 11:04:58 -04:00
Al Viro
694b9a7157 amifb: get rid of pointless access_ok() calls
addresses passed only to get_user() and put_user()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2020-05-29 11:04:56 -04:00
Michal Simek
7ade8495dc powerpc: Remove Xilinx PPC405/PPC440 support
The latest Xilinx design tools called ISE and EDK has been released in
October 2013. New tool doesn't support any PPC405/PPC440 new designs.
These platforms are no longer supported and tested.

PowerPC 405/440 port is orphan from 2013 by
commit cdeb89943b ("MAINTAINERS: Fix incorrect status tag") and
commit 19624236cc ("MAINTAINERS: Update Grant's email address and maintainership")
that's why it is time to remove the support fot these platforms.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/8c593895e2cb57d232d85ce4d8c3a1aa7f0869cc.1590079968.git.christophe.leroy@csgroup.eu
2020-05-28 23:24:34 +10:00
Christophe Leroy
7bfc3c84cb drivers/powerpc: Replace _ALIGN_UP() by ALIGN()
_ALIGN_UP() is specific to powerpc
ALIGN() is generic and does the same

Replace _ALIGN_UP() by ALIGN()

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Link: https://lore.kernel.org/r/a5945463f86c984151962a475a3ee56a2893e85d.1587407777.git.christophe.leroy@c-s.fr
2020-05-11 23:15:15 +10:00
Jason Yan
6e85bd73d5 video: fbdev: pxa168fb: make pxa168fb_init_mode() return void
No other functions use the return value of pxa168fb_init_mode() and the
return value is always 0 now. Make it return void. This fixes the
following coccicheck warning:

drivers/video/fbdev/pxa168fb.c:565:5-8: Unneeded variable: "ret". Return
"0" on line 597

Signed-off-by: Jason Yan <yanaijie@huawei.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
[fixed indent]
Link: https://patchwork.freedesktop.org/patch/msgid/20200506061745.19451-1-yanaijie@huawei.com
2020-05-09 23:09:41 +02:00
Jason Yan
bec1277a7e video: fbdev: valkyriefb.c: fix warning comparing pointer to 0
Fix the following coccicheck warning:

drivers/video/fbdev/valkyriefb.c:348:10-11: WARNING comparing pointer to
0, suggest !E
drivers/video/fbdev/valkyriefb.c:334:12-13: WARNING comparing pointer to
0
drivers/video/fbdev/valkyriefb.c:348:10-11: WARNING comparing pointer to
0

Signed-off-by: Jason Yan <yanaijie@huawei.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200429140942.8137-1-yanaijie@huawei.com
2020-05-06 21:04:45 +02:00
Christophe JAILLET
18722d48a6 video: fbdev: w100fb: Fix a potential double free.
Some memory is vmalloc'ed in the 'w100fb_save_vidmem' function and freed in
the 'w100fb_restore_vidmem' function. (these functions are called
respectively from the 'suspend' and the 'resume' functions)

However, it is also freed in the 'remove' function.

In order to avoid a potential double free, set the corresponding pointer
to NULL once freed in the 'w100fb_restore_vidmem' function.

Fixes: aac51f09d9 ("[PATCH] w100fb: Rewrite for platform independence")
Cc: Richard Purdie <rpurdie@rpsys.net>
Cc: Antonino Daplas <adaplas@pol.net>
Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Cc: <stable@vger.kernel.org> # v2.6.14+
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200506181902.193290-1-christophe.jaillet@wanadoo.fr
2020-05-06 20:22:25 +02:00
Jason Yan
d163a95cf0 fbdev: aty: use true, false for bool variables in atyfb_base.c
Fix the following coccicheck warning:

drivers/video/fbdev/aty/atyfb_base.c:3822:3-10: WARNING: Assignment of
0/1 to bool variable
drivers/video/fbdev/aty/atyfb_base.c:3824:3-9: WARNING: Assignment of
0/1 to bool variable

Signed-off-by: Jason Yan <yanaijie@huawei.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200422071854.513-1-yanaijie@huawei.com
2020-05-06 19:32:15 +02:00
Jason Yan
dbc7ece12a video: uvesafb: use true,false for bool variables
Fix the following coccicheck warning:

drivers/video/fbdev/uvesafb.c:48:12-17: WARNING: Assignment of 0/1 to
bool variable
drivers/video/fbdev/uvesafb.c:1827:3-13: WARNING: Assignment of 0/1 to
bool variable
drivers/video/fbdev/uvesafb.c:1829:3-13: WARNING: Assignment of 0/1 to
bool variable
drivers/video/fbdev/uvesafb.c:1835:3-9: WARNING: Assignment of 0/1 to
bool variable
drivers/video/fbdev/uvesafb.c:1837:3-9: WARNING: Assignment of 0/1 to
bool variable
drivers/video/fbdev/uvesafb.c:1839:3-8: WARNING: Assignment of 0/1 to
bool variable

Signed-off-by: Jason Yan <yanaijie@huawei.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200422071845.403-1-yanaijie@huawei.com
2020-05-06 19:32:08 +02:00
Jason Yan
7022537b58 video: udlfb: use true,false for bool variables
Fix the following coccicheck warning:

drivers/video/fbdev/udlfb.c:67:12-19: WARNING: Assignment of 0/1 to bool
variable
drivers/video/fbdev/udlfb.c:68:12-20: WARNING: Assignment of 0/1 to bool
variable
drivers/video/fbdev/udlfb.c:69:12-18: WARNING: Assignment of 0/1 to bool
variable

Signed-off-by: Jason Yan <yanaijie@huawei.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200422071836.49123-1-yanaijie@huawei.com
2020-05-06 19:30:25 +02:00
Jason Yan
13e9bd05b3 video: fbdev: i810: use true,false for bool variables
Fix the following coccicheck warning:

drivers/video/fbdev/i810/i810_main.c:1969:3-7: WARNING: Assignment of
0/1 to bool variable
drivers/video/fbdev/i810/i810_main.c:1971:3-8: WARNING: Assignment of
0/1 to bool variable
drivers/video/fbdev/i810/i810_main.c:1973:3-9: WARNING: Assignment of
0/1 to bool variable
drivers/video/fbdev/i810/i810_main.c:1975:3-7: WARNING: Assignment of
0/1 to bool variable
drivers/video/fbdev/i810/i810_main.c:2001:3-9: WARNING: Assignment of
0/1 to bool variable

Signed-off-by: Jason Yan <yanaijie@huawei.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200422071826.49038-1-yanaijie@huawei.com
2020-05-06 19:29:10 +02:00
Bartlomiej Zolnierkiewicz
6d4f3e2bfc video: fbdev: controlfb: fix build for COMPILE_TEST=y && PPC_PMAC=y && PPC32=n
powerpc allyesconfig fails like this:

drivers/video/fbdev/controlfb.c: In function 'controlfb_mmap':
drivers/video/fbdev/controlfb.c:756:23: error: implicit declaration of function 'pgprot_cached_wthru'; did you mean 'pgprot_cached'? [-Werror=implicit-function-declaration]
  756 |   vma->vm_page_prot = pgprot_cached_wthru(vma->vm_page_prot);
      |                       ^~~~~~~~~~~~~~~~~~~
      |                       pgprot_cached
drivers/video/fbdev/controlfb.c:756:23: error: incompatible types when assigning to type 'pgprot_t' {aka 'struct <anonymous>'} from type 'int'

Fix it by adding missing PPC32 dependency.

Fixes: a07a63b0e2 ("video: fbdev: controlfb: add COMPILE_TEST support")
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Reported-by: kbuild test robot <lkp@intel.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/fe520316-3863-e6c4-9581-5d709f49e906@samsung.com
2020-04-29 21:00:25 +02:00
Souptick Joarder
bc7f0b6d4a video/fbdev/riva: Remove dead code
These are dead code since 3.15. These can be removed forever if no
plan to use it further.

Signed-off-by: Souptick Joarder <jrdr.linux@gmail.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/1587407244-32574-1-git-send-email-jrdr.linux@gmail.com
2020-04-25 17:08:55 +02:00
Chuhong Yuan
6937749955 video: fbdev: vesafb: add missed release_region
The driver forgets to free the I/O region in remove and probe
failure.
Add the missed calls to fix it.

Since the success of request_region() is optional, add the "region" field
in vesafb_par to represent whether request_region() succeeds.
Then only call release_region() when "region" is not null.

Signed-off-by: Chuhong Yuan <hslester96@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200329145839.20076-1-hslester96@gmail.com
2020-04-17 15:50:14 +02:00
Chuhong Yuan
fbe3d80df8 video: fbdev: arcfb: add missed free_irq and fix the order of request_irq
The driver forgets to free irq in remove which is requested in
probe.
Add the missed call to fix it.
Also, the position of request_irq() in probe should be put before
register_framebuffer().

Signed-off-by: Chuhong Yuan <hslester96@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200324132353.21785-1-hslester96@gmail.com
2020-04-17 15:50:13 +02:00
Chuhong Yuan
8213fb4187 fbdev: s1d13xxxfb: add missed unregister_framebuffer in remove
The driver calls register_framebuffer() in probe but does not call
unregister_framebuffer() in remove.
Rename current remove to __s1d13xxxfb_remove() for error handler.
Then add a new remove to call unregister_framebuffer().

Signed-off-by: Chuhong Yuan <hslester96@gmail.com>
Cc: Kristoffer Ericson <kristoffer.ericson@gmail.com>
[b.zolnierkie: ported over recent s1d13xxxfb changes]
[b.zolnierkie: removed extra newline]
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200324132311.21729-1-hslester96@gmail.com
2020-04-17 15:50:12 +02:00
Linus Walleij
5e4096ef03 ARM/fbdev: sa11x0: Switch to use GPIO descriptors
This converts the SA11x0 frame buffer driver to use
GPIO descriptors. Get the GPIO optional and register
a look-up table specifically for the Shannon machine.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Cc: Russell King <linux@armlinux.org.uk>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200415165055.193113-1-linus.walleij@linaro.org
2020-04-17 15:50:11 +02:00
Jason Yan
7066fcd553 video: fbdev: aty128fb: remove unused 'sdr_64'
Fix the following gcc warning:

drivers/video/fbdev/aty/aty128fb.c:337:36: warning: ‘sdr_64’ defined but
not used [-Wunused-const-variable=]
 static const struct aty128_meminfo sdr_64 = {
                                    ^~~~~~

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Jason Yan <yanaijie@huawei.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200417092318.13978-1-yanaijie@huawei.com
2020-04-17 15:50:10 +02:00
YueHaibing
fff1ac9e28 omapfb/dss: remove unused variable 'venc_config_pal_bdghi'
drivers/video/fbdev/omap2/omapfb/dss/venc.c:212:33:
 warning: ‘venc_config_pal_bdghi’ defined but not used [-Wunused-const-variable=]
 static const struct venc_config venc_config_pal_bdghi = {
                                 ^~~~~~~~~~~~~~~~~~~~~

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Cc: Allison Randal <allison@lohutok.net>
[b.zolnierkie: fixed typo in the patch summary]
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200415132350.33088-1-yuehaibing@huawei.com
2020-04-17 15:50:09 +02:00
Sam Ravnborg
1c49f35e9e video: vt8500lcdfb: fix fallthrough warning
Fix following warning:
vt8500lcdfb.c: In function 'vt8500lcd_blank':
vt8500lcdfb.c:229:6: warning: this statement may fall through [-Wimplicit-fallthrough=]
      if (info->fix.visual == FB_VISUAL_PSEUDOCOLOR ||
         ^
vt8500lcdfb.c:233:2: note: here
     case FB_BLANK_UNBLANK:
     ^~~~

Adding a simple "fallthrough;" fixed the warning.
The fix was build tested.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Reported-by: kbuild test robot <lkp@intel.com>
Fixes: e41f1a9894 ("fbdev: Implement simple blanking in pseudocolor modes for vt8500lcdfb")
Cc: Alexey Charkov <alchark@gmail.com>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: <stable@vger.kernel.org> # v2.6.38+
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200412202143.GA26948@ravnborg.org
2020-04-17 15:50:08 +02:00
Uwe Kleine-König
5c694f8094 video: fbdev: imxfb: ensure balanced regulator usage
The fbdev framework doesn't care to call the .set_power callback only on
changes. So the driver has to care for itself that the regulator doesn't
get disabled more often than enabled.

This fixes the regulator warning

	unbalanced disables for lcd supply

which can be triggered by doing

	echo 4 > /sys/class/lcd/imxfb-lcd/lcd_power

twice.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Pengutronix Kernel Team <kernel@pengutronix.de>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Fabio Estevam <festevam@gmail.com>
Cc: NXP Linux Team <linux-imx@nxp.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200323211626.24812-1-u.kleine-koenig@pengutronix.de
2020-04-17 15:50:07 +02:00
Bartlomiej Zolnierkiewicz
04dff10ffb video: fbdev: controlfb: remove function prototypes part #3
Reorder code a bit and then remove no longer needed function
prototypes.

Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200324134508.25120-7-b.zolnierkie@samsung.com
2020-04-17 15:50:06 +02:00
Bartlomiej Zolnierkiewicz
a57eb14ebb video: fbdev: controlfb: remove function prototypes part #2
Reorder code a bit and then remove no longer needed function
prototypes.

Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200324134508.25120-6-b.zolnierkie@samsung.com
2020-04-17 15:50:05 +02:00
Bartlomiej Zolnierkiewicz
946e8fd4fb video: fbdev: controlfb: remove function prototypes part #1
Reorder code a bit and then remove no longer needed function
prototypes.

Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200324134508.25120-5-b.zolnierkie@samsung.com
2020-04-17 15:50:04 +02:00
Bartlomiej Zolnierkiewicz
72155824e1 video: fbdev: controlfb: remove obsolete module support
CONFIG_FB_CONTROL is bool, hence the Apple "control" frame buffer
driver cannot be built as a module.

Replace module_init() by device_initcall().

Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200324134508.25120-4-b.zolnierkie@samsung.com
2020-04-17 15:50:03 +02:00
Bartlomiej Zolnierkiewicz
a07a63b0e2 video: fbdev: controlfb: add COMPILE_TEST support
Add COMPILE_TEST support to controlfb driver for better compile
testing coverage.

While at it:
- convert driver to use eieio() and dcbf() helpers instead of
  open-coding them
- add invalid_vram_cache() helper to avoid code duplication

Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200324134508.25120-3-b.zolnierkie@samsung.com
2020-04-17 15:50:02 +02:00
Bartlomiej Zolnierkiewicz
38bf1077cf video: fbdev: controlfb: fix sparse warning about using incorrect type
Use in_le32() instead of le32_to_cpup() to fix sparse warning about
improper type of the argument.

Also drop inline keyword from control_par_to_var() prototype
(to match function definition).

Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200324134508.25120-2-b.zolnierkie@samsung.com
2020-04-17 15:50:01 +02:00
Andy Shevchenko
304d63d4d8 video: ssd1307fb: Remove redundant forward declaration
There is no need to have forward declaration of struct ssd1307fb_par.
Drop it for good.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200324170532.44384-5-andriy.shevchenko@linux.intel.com
2020-04-17 15:50:00 +02:00
Andy Shevchenko
479382360d video: ssd1307fb: Convert to atomic PWM API
Use the atomic API wherever appropriate and get rid of pwm_apply_args()
call (the reference period and polarity are now explicitly set when
calling pwm_apply_state()).

We also make use of the pwm_set_relative_duty_cycle() helper to ease
relative to absolute duty_cycle conversion.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200324170532.44384-4-andriy.shevchenko@linux.intel.com
2020-04-17 15:49:59 +02:00
Andy Shevchenko
72915994e0 video: ssd1307fb: Make use of device properties
Device property API allows to gather device resources from different sources,
such as ACPI. Convert the drivers to unleash the power of device property API.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200324170532.44384-3-andriy.shevchenko@linux.intel.com
2020-04-17 15:49:58 +02:00
Andy Shevchenko
fa64c6bade video: ssd1307fb: Introduce temporary variable to increase readability
Introduce temporary variable to increase readability of the code.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
[b.zolnierkie: fix lines over 80 characters]
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200324170532.44384-2-andriy.shevchenko@linux.intel.com
2020-04-17 15:49:57 +02:00
Andy Shevchenko
59d961c597 video: ssd1307fb: Convert driver to use ->probe_new()
Use the ->probe_new() callback.

The driver does not use const struct i2c_device_id * argument,
so convert it to utilise the simplified I²C driver registration.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200324170532.44384-1-andriy.shevchenko@linux.intel.com
2020-04-17 15:49:56 +02:00
Thomas Zimmermann
08d99b2c23 Merge drm/drm-next into drm-misc-next
Backmerging required to pull topic/phy-compliance.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
2020-04-17 08:12:22 +02:00
Sam Ravnborg
feea1aab92 fbdev: mx3fb: const pointer to ipu_di_signal_cfg
Laurent Pinchart <laurent.pinchart@ideasonboard.com> and
Jani Nikula <jani.nikula@intel.com> both
suggested to make the pointer to struct ipu_di_signal_cfg const.

Fix this.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Fixes: 3f6c93ec92 ("fbdev: mx3fb: avoid warning about psABI change")
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Jani Nikula <jani.nikula@intel.com>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Enrico Weigelt <info@metux.net>
Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Cc: linux-fbdev@vger.kernel.org
Link: https://patchwork.freedesktop.org/patch/msgid/20200408182926.GA21997@ravnborg.org
2020-04-12 22:09:35 +02:00
Arnd Bergmann
3f6c93ec92 fbdev: mx3fb: avoid warning about psABI change
The arm64 gcc-9 release warns about a change in the calling
conventions:

drivers/video/fbdev/mx3fb.c: In function 'sdc_init_panel':
drivers/video/fbdev/mx3fb.c:506:12: note: parameter passing for argument of type 'struct ipu_di_signal_cfg' changed in GCC 9.1
  506 | static int sdc_init_panel(struct mx3fb_data *mx3fb, enum ipu_panel panel,
      |            ^~~~~~~~~~~~~~
drivers/video/fbdev/mx3fb.c: In function '__set_par':
drivers/video/fbdev/mx3fb.c:848:7: note: parameter passing for argument of type 'struct ipu_di_signal_cfg' changed in GCC 9.1

Change the file to just pass the struct by reference, which is
unambiguous and avoids the warning.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200408162551.3928330-1-arnd@arndb.de
2020-04-08 19:17:11 +02:00
Jason Yan
465b1e058a video: fbdev: mb862xx: remove set but not used variable 'mdr'
Fix the following gcc warning:

drivers/video/fbdev/mb862xx/mb862xxfb_accel.c:187:6: warning: variable
‘mdr’ set but not used [-Wunused-but-set-variable]
  int mdr;
      ^~~

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Jason Yan <yanaijie@huawei.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200403022553.33320-1-yanaijie@huawei.com
2020-04-08 12:09:15 +02:00
Jason Yan
7b987887f9 video: fbdev: matroxfb: remove dead code and set but not used variable
Fix the following gcc warning:

drivers/video/fbdev/matrox/g450_pll.c:336:15: warning: variable
‘pixel_vco’ set but not used [-Wunused-but-set-variable]
  unsigned int pixel_vco;
               ^~~~~~~~~

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Jason Yan <yanaijie@huawei.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200403021609.20968-1-yanaijie@huawei.com
2020-04-08 12:09:10 +02:00
Linus Torvalds
f5e94d10e4 drm fixes for 5.7-rc1
core:
 - revert drm_mm atomic patch
 - dt binding fixes
 
 fbcon:
 - null ptr error fix
 
 i915:
 - GVT fixes
 
 nouveau:
 - runpm fix
 - svm fixes
 
 amdgpu:
 - HDCP fixes
 - gfx10 fix
 - Misc display fixes
 - BACO fixes
 
 amdkfd:
 - Fix memory leak
 
 vboxvideo:
 - remove conflicting fbs
 
 vc4:
 - mode validation fix
 
 xen:
 - fix PTR_ERR usage
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Merge tag 'drm-next-2020-04-08' of git://anongit.freedesktop.org/drm/drm

Pull drm fixes from Dave Airlie:
 "This is a set of fixes that have queued up, I think I might have
  another pull with some more before rc1 but I'd like to dequeue what I
  have now just in case Easter is more eggciting that expected.

  The main thing in here is a fix for a longstanding nouveau power
  management issues on certain laptops, it should help runtime
  suspend/resume for a lot of people.

  There is also a reverted patch for some drm_mm behaviour in atomic
  contexts.

  Summary:

  core:
   - revert drm_mm atomic patch
   - dt binding fixes

  fbcon:
   - null ptr error fix

  i915:
   - GVT fixes

  nouveau:
   - runpm fix
   - svm fixes

  amdgpu:
   - HDCP fixes
   - gfx10 fix
   - Misc display fixes
   - BACO fixes

  amdkfd:
   - Fix memory leak

  vboxvideo:
   - remove conflicting fbs

  vc4:
   - mode validation fix

  xen:
   - fix PTR_ERR usage"

* tag 'drm-next-2020-04-08' of git://anongit.freedesktop.org/drm/drm: (41 commits)
  drm/nouveau/kms/nv50-: wait for FIFO space on PIO channels
  drm/nouveau/nvif: protect waits against GPU falling off the bus
  drm/nouveau/nvif: access PTIMER through usermode class, if available
  drm/nouveau/gr/gp107,gp108: implement workaround for HW hanging during init
  drm/nouveau: workaround runpm fail by disabling PCI power management on certain intel bridges
  drm/nouveau/svm: remove useless SVM range check
  drm/nouveau/svm: check for SVM initialized before migrating
  drm/nouveau/svm: fix vma range check for migration
  drm/nouveau: remove checks for return value of debugfs functions
  drm/nouveau/ttm: evict other IO mappings when running out of BAR1 space
  drm/amdkfd: kfree the wrong pointer
  drm/amd/display: increase HDCP authentication delay
  drm/amd/display: Correctly cancel future watchdog and callback events
  drm/amd/display: Don't try hdcp1.4 when content_type is set to type1
  drm/amd/powerplay: move the ASIC specific nbio operation out of smu_v11_0.c
  drm/amd/powerplay: drop redundant BIF doorbell interrupt operations
  drm/amd/display: Fix dcn21 num_states
  drm/amd/display: Enable BT2020 in COLOR_ENCODING property
  drm/amd/display: LFC not working on 2.0x range monitors (v2)
  drm/amd/display: Support plane level CTM
  ...
2020-04-07 20:24:34 -07:00
Jules Irenge
43ea4d0905 video: Add missing annotation for cyber2000fb_enable_ddc() and cyber2000fb_disable_ddc()
Sparse reports warnings at cyber2000fb_enable_ddc()
	and cyber2000fb_disable_ddc()

warning: context imbalance in cyber2000fb_enable_ddc()
	- wrong count at exit

warning: context imbalance in cyber2000fb_disable_ddc()
	- unexpected unlock

The root cause is the missing annotation at cyber2000fb_enable_ddc()
	and cyber2000fb_disable_ddc()

Add the missing __acquires(&cfb->reg_b0_lock) annotation
Add the missing __releases(&cfb->reg_b0_lock) annotation

Signed-off-by: Jules Irenge <jbi.octave@gmail.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200403160505.2832-3-jbi.octave@gmail.com
2020-04-07 21:45:42 +02:00
Tang Bin
7606662686 video: fbdev: don't print error message on platform_get_irq() failure
The platform_get_irq() can print error message, so remove the redundant
dev_err() here.

Signed-off-by: Tang Bin <tangbin@cmss.chinamobile.com>
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200406053450.8380-1-tangbin@cmss.chinamobile.com
2020-04-07 20:10:59 +02:00
Linus Torvalds
0ad5b053d4 Char/Misc driver patches for 5.7-rc1
Here is the big set of char/misc/other driver patches for 5.7-rc1.
 
 Lots of things in here, and it's later than expected due to some reverts
 to resolve some reported issues.  All is now clean with no reported
 problems in linux-next.
 
 Included in here is:
 	- interconnect updates
 	- mei driver updates
 	- uio updates
 	- nvmem driver updates
 	- soundwire updates
 	- binderfs updates
 	- coresight updates
 	- habanalabs updates
 	- mhi new bus type and core
 	- extcon driver updates
 	- some Kconfig cleanups
 	- other small misc driver cleanups and updates
 
 As mentioned, all have been in linux-next for a while, and with the last
 two reverts, all is calm and good.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc driver updates from Greg KH:
 "Here is the big set of char/misc/other driver patches for 5.7-rc1.

  Lots of things in here, and it's later than expected due to some
  reverts to resolve some reported issues. All is now clean with no
  reported problems in linux-next.

  Included in here is:
   - interconnect updates
   - mei driver updates
   - uio updates
   - nvmem driver updates
   - soundwire updates
   - binderfs updates
   - coresight updates
   - habanalabs updates
   - mhi new bus type and core
   - extcon driver updates
   - some Kconfig cleanups
   - other small misc driver cleanups and updates

  As mentioned, all have been in linux-next for a while, and with the
  last two reverts, all is calm and good"

* tag 'char-misc-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (174 commits)
  Revert "driver core: platform: Initialize dma_parms for platform devices"
  Revert "amba: Initialize dma_parms for amba devices"
  amba: Initialize dma_parms for amba devices
  driver core: platform: Initialize dma_parms for platform devices
  bus: mhi: core: Drop the references to mhi_dev in mhi_destroy_device()
  bus: mhi: core: Initialize bhie field in mhi_cntrl for RDDM capture
  bus: mhi: core: Add support for reading MHI info from device
  misc: rtsx: set correct pcr_ops for rts522A
  speakup: misc: Use dynamic minor numbers for speakup devices
  mei: me: add cedar fork device ids
  coresight: do not use the BIT() macro in the UAPI header
  Documentation: provide IBM contacts for embargoed hardware
  nvmem: core: remove nvmem_sysfs_get_groups()
  nvmem: core: use is_bin_visible for permissions
  nvmem: core: use device_register and device_unregister
  nvmem: core: add root_only member to nvmem device struct
  extcon: axp288: Add wakeup support
  extcon: Mark extcon_get_edev_name() function as exported symbol
  extcon: palmas: Hide error messages if gpio returns -EPROBE_DEFER
  dt-bindings: extcon: usbc-cros-ec: convert extcon-usbc-cros-ec.txt to yaml format
  ...
2020-04-03 13:22:40 -07:00
Linus Torvalds
f365ab31ef drm for 5.7-rc1
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Merge tag 'drm-next-2020-04-01' of git://anongit.freedesktop.org/drm/drm

Pull drm updates from Dave Airlie:
 "This is the main drm pull request for 5.7-rc1.

  Highlights:

   - i915 enables Tigerlake by default

   - i915 and amdgpu have initial OLED backlight support

     [ Jani Nikula pipes up and points out that we've had a bunch of
       "initial support" code for a long time already, but only now
       Lyude made it actually work on real world machines ]

   - vmwgfx add support to enable OpenGL 4 userspace

   - zero length arrays are mostly removed.

  Detailed summary:

  new driver:
   - tidss: TI Keystone platform display subsystem

  core:
   - new drm device warn macros
   - mode config valid for memory constrained devices
   - bridge bus format negotation
   - consolidated fake vblank event handling
   - dma_alloc related cleanups
   - drop get_crtc callback
   - dp: DP1.4 EDID corruption test
   - EDID CEA detailed timings improvements
   - relicense some code to dual GPL2/MIT
   - convert core vblank support to per-crtc support
   - rework drm_global_mutex
   - bridge rework to allow omap_dss custom driver removeal
   - remove drm_fb_helper connector interrfaces
   - zero-length array removal

  scheduler:
   - support for modifying the sched list
   - revert job distribution optimization
   - helper to pick least loaded scheduler
   - race condition fix

  mst:
   - various fixes
   - remove register_connector callback

  i915:
   - uapi to allows userspace specific CS ring buffer sizes
   - Tigerlake enablement patches + Tigerlake enabled by default
   - new sysfs entries for engine properties
   - display/logging refactors
   - eDP/DP fixes for DPCD
   - Gen7 back to aliasing-ppgtt
   - Gen8+ irq refactor
   - Avoid globals
   - GEM locking fixes and simplifications
   - Ice Lake and Elkhart Lake fixes and workarounds
   - Baytrail/Haswell instability fix
   - GVT - VFIO edid better support

  amdgpu:
   - Rework VM update handling in preparation for HMM support
   - drm load/unload removal fixups
   - USB-C PD firmware updates
   - HDCP srm support
   - Navi/renoir PM watermark fixes
   - OLED panel support
   - Optimize debugging vram access
   - Use BACO for runtime pm
   - DC clock programming optimizations and fixes
   - PSP fw loading sequence updates
   - Drop DRIVER_USE_AGP
   - Remove legacy drm load and unload callbacks
   - ACP Kconfig fix
   - Lots of fixes across the driver

  amdkfd:
   - runtime pm support
   - more gfx config details in amdgpu

  radeon:
   - drop DRIVER_USE_AGP

  vmwgfx:
   - Disable DMA when SEV encryption in use
   - Shader Model 5 support - needed for GL4 support

  msm:
   - DPU resource manager refactor
   - dpu using atomic global state

  mediatek:
   - MT8183 DPI support

  etnaviv:
   - out-of-bounds read fix
   - expose feature flags for GC400 STM32MP1 SoC
   - runtime suspend entry fix
   - dma32 zone fix

  hisilicon:
   - mode selection fixes

  meson:
   - YUV420 support

  lima:
   - add support for heap buffers

  tinydrm:
   - removal of owner field
   - explicit DT dependency removal
   - YAML schema conversion

  tegra:
   - misc cleanups

  tidss:
   - new driver

  virtio:
   - better batching of notifications to host
   - memory handling reworked
   - shmem + gpu context fixes

  hibmc:
   - add gamma_set support
   - improve DPMS support

  pl111:
   - Integrator IM-PD1 support

  sun4i:
   - LVDS support for A20 + A33
   - DSI panel handling improvements"

* tag 'drm-next-2020-04-01' of git://anongit.freedesktop.org/drm/drm: (1537 commits)
  drm/i915/display: Fix mode private_flags comparison at atomic_check
  drm/i915/gt: Stage the transfer of the virtual breadcrumb
  drm/i915/gt: Select the deepest available parking mode for rc6
  drm/i915: Avoid live-lock with i915_vma_parked()
  drm/i915/gt: Treat idling as a RPS downclock event
  drm/i915/gt: Cancel a hung context if already closed
  drm/i915: Use explicit flag to mark unreachable intel_context
  drm/amdgpu: don't try to reserve training bo for sriov (v2)
  drm/amdgpu/smu11: add support for SMU AC/DC interrupts
  drm/amdgpu/swSMU: handle manual AC/DC notifications
  drm/amdgpu/swSMU: handle DC controlled by GPIO for navi1x
  drm/amdgpu/swSMU: set AC/DC mode based on the current system state (v2)
  drm/amdgpu/swSMU: correct the bootup power source for Navi1X (v2)
  drm/amdgpu/swSMU: use the smu11 power source helper for navi1x
  drm/amdgpu/smu11: add a helper to set the power source
  drm/amd/swSMU: add callback to set AC/DC power source (v2)
  drm/scheduler: fix rare NULL ptr race
  drm/amdgpu: fix the coverage issue to clear ArcVPGRs
  drm/amd/display: Fix pageflip event race condition for DCN.
  drm/[radeon|amdgpu]: Remove HAINAN board from max_sclk override check
  ...
2020-04-01 15:24:20 -07:00
Linus Torvalds
d71e064449 MIPS updates for v5.7:
- loongson64 irq rework
 - dmi support loongson
 - replace setup_irq() by request_irq()
 - jazz cleanups
 - minor cleanups and fixes
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Merge tag 'mips_5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux

Pull MIPS updates from Thomas Bogendoerfer:

 - loongson64 irq rework

 - dmi support loongson

 - replace setup_irq() by request_irq()

 - jazz cleanups

 - minor cleanups and fixes

* tag 'mips_5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux: (44 commits)
  MIPS: ralink: mt7621: Fix soc_device introduction
  MIPS: Exclude more dsemul code when CONFIG_MIPS_FP_SUPPORT=n
  MIPS/tlbex: Fix LDDIR usage in setup_pw() for Loongson-3
  MIPS: do not compile generic functions for CONFIG_CAVIUM_OCTEON_SOC
  MAINTAINERS: Update Loongson64 entry
  MIPS: Loongson64: Load built-in dtbs
  MIPS: Loongson64: Add generic dts
  dt-bindings: mips: Add loongson boards
  MIPS: Loongson64: Drop legacy IRQ code
  dt-bindings: interrupt-controller: Add Loongson-3 HTPIC
  irqchip: Add driver for Loongson-3 HyperTransport PIC controller
  dt-bindings: interrupt-controller: Add Loongson LIOINTC
  irqchip: loongson-liointc: Workaround LPC IRQ Errata
  irqchip: Add driver for Loongson I/O Local Interrupt Controller
  docs: mips: remove no longer needed au1xxx_ide.rst documentation
  MIPS: Alchemy: remove no longer used au1xxx_ide.h header
  ide: remove no longer used au1xxx-ide driver
  MIPS: Add support for Desktop Management Interface (DMI)
  firmware: dmi: Add macro SMBIOS_ENTRY_POINT_SCAN_START
  MIPS: ralink: mt7621: introduce 'soc_device' initialization
  ...
2020-03-31 08:51:45 -07:00
Qiujun Huang
b139f8b00d fbcon: fix null-ptr-deref in fbcon_switch
Set logo_shown to FBCON_LOGO_CANSHOW when the vc was deallocated.

syzkaller report: https://lkml.org/lkml/2020/3/27/403
general protection fault, probably for non-canonical address
0xdffffc000000006c: 0000 [#1] SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000360-0x0000000000000367]
RIP: 0010:fbcon_switch+0x28f/0x1740
drivers/video/fbdev/core/fbcon.c:2260

Call Trace:
redraw_screen+0x2a8/0x770 drivers/tty/vt/vt.c:1008
vc_do_resize+0xfe7/0x1360 drivers/tty/vt/vt.c:1295
fbcon_init+0x1221/0x1ab0 drivers/video/fbdev/core/fbcon.c:1219
visual_init+0x305/0x5c0 drivers/tty/vt/vt.c:1062
do_bind_con_driver+0x536/0x890 drivers/tty/vt/vt.c:3542
do_take_over_console+0x453/0x5b0 drivers/tty/vt/vt.c:4122
do_fbcon_takeover+0x10b/0x210 drivers/video/fbdev/core/fbcon.c:588
fbcon_fb_registered+0x26b/0x340 drivers/video/fbdev/core/fbcon.c:3259
do_register_framebuffer drivers/video/fbdev/core/fbmem.c:1664 [inline]
register_framebuffer+0x56e/0x980 drivers/video/fbdev/core/fbmem.c:1832
dlfb_usb_probe.cold+0x1743/0x1ba3 drivers/video/fbdev/udlfb.c:1735
usb_probe_interface+0x310/0x800 drivers/usb/core/driver.c:374

accessing vc_cons[logo_shown].d->vc_top causes the bug.

Reported-by: syzbot+732528bae351682f1f27@syzkaller.appspotmail.com
Signed-off-by: Qiujun Huang <hqjagain@gmail.com>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Cc: stable@vger.kernel.org
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20200329085647.25133-1-hqjagain@gmail.com
2020-03-31 09:59:38 +02:00
Tomi Valkeinen
4f55bb0380 omapfb: Remove unused writeback code
Remove unused writeback code. This code will never be used, as omapfb is
being deprecated.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200313122410.7528-1-tomi.valkeinen@ti.com
2020-03-20 14:29:13 +01:00