drm/exynos: Fix cleanup of IOMMU related objects

Store the IOMMU mapping created by the device core of each Exynos DRM
sub-device and restore it when the Exynos DRM driver is unbound. This
fixes IOM

drm/exynos: Fix cleanup of IOMMU related objects

Store the IOMMU mapping created by the device core of each Exynos DRM
sub-device and restore it when the Exynos DRM driver is unbound. This
fixes IOMMU initialization failure for the second time when a deferred
probe is triggered from the bind() callback of master's compound DRM
driver. This also fixes the following issue found using kmemleak
detector:

unreferenced object 0xc2137640 (size 64):
comm "swapper/0", pid 1, jiffies 4294937900 (age 3127.400s)
hex dump (first 32 bytes):
50 a3 14 c2 80 a2 14 c2 01 00 00 00 20 00 00 00 P........... ...
00 10 00 00 00 80 00 00 00 00 00 00 00 00 00 00 ................
backtrace:
[<3acd268d>] arch_setup_dma_ops+0x4c/0x104
[<9f7d2cce>] of_dma_configure+0x19c/0x3a4
[<ba07704b>] really_probe+0xb0/0x47c
[<4f510e4f>] driver_probe_device+0x78/0x1c4
[<7481a0cf>] device_driver_attach+0x58/0x60
[<0ff8f5c1>] __driver_attach+0xb8/0x158
[<86006144>] bus_for_each_dev+0x74/0xb4
[<10159dca>] bus_add_driver+0x1c0/0x200
[<8a265265>] driver_register+0x74/0x108
[<e0f3451a>] exynos_drm_init+0xb0/0x134
[<db3fc7ba>] do_one_initcall+0x90/0x458
[<6da35917>] kernel_init_freeable+0x188/0x200
[<db3f74d4>] kernel_init+0x8/0x110
[<1f3cddf9>] ret_from_fork+0x14/0x20
[<8cd12507>] 0x0
unreferenced object 0xc214a280 (size 128):
comm "swapper/0", pid 1, jiffies 4294937900 (age 3127.400s)
hex dump (first 32 bytes):
00 a0 ec ed 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
backtrace:
[<3acd268d>] arch_setup_dma_ops+0x4c/0x104
[<9f7d2cce>] of_dma_configure+0x19c/0x3a4
[<ba07704b>] really_probe+0xb0/0x47c
[<4f510e4f>] driver_probe_device+0x78/0x1c4
[<7481a0cf>] device_driver_attach+0x58/0x60
[<0ff8f5c1>] __driver_attach+0xb8/0x158
[<86006144>] bus_for_each_dev+0x74/0xb4
[<10159dca>] bus_add_driver+0x1c0/0x200
[<8a265265>] driver_register+0x74/0x108
[<e0f3451a>] exynos_drm_init+0xb0/0x134
[<db3fc7ba>] do_one_initcall+0x90/0x458
[<6da35917>] kernel_init_freeable+0x188/0x200
[<db3f74d4>] kernel_init+0x8/0x110
[<1f3cddf9>] ret_from_fork+0x14/0x20
[<8cd12507>] 0x0
unreferenced object 0xedeca000 (size 4096):
comm "swapper/0", pid 1, jiffies 4294937900 (age 3127.400s)
hex dump (first 32 bytes):
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
backtrace:
[<3acd268d>] arch_setup_dma_ops+0x4c/0x104
[<9f7d2cce>] of_dma_configure+0x19c/0x3a4
[<ba07704b>] really_probe+0xb0/0x47c
[<4f510e4f>] driver_probe_device+0x78/0x1c4
[<7481a0cf>] device_driver_attach+0x58/0x60
[<0ff8f5c1>] __driver_attach+0xb8/0x158
[<86006144>] bus_for_each_dev+0x74/0xb4
[<10159dca>] bus_add_driver+0x1c0/0x200
[<8a265265>] driver_register+0x74/0x108
[<e0f3451a>] exynos_drm_init+0xb0/0x134
[<db3fc7ba>] do_one_initcall+0x90/0x458
[<6da35917>] kernel_init_freeable+0x188/0x200
[<db3f74d4>] kernel_init+0x8/0x110
[<1f3cddf9>] ret_from_fork+0x14/0x20
[<8cd12507>] 0x0
unreferenced object 0xc214a300 (size 128):
comm "swapper/0", pid 1, jiffies 4294937900 (age 3127.400s)
hex dump (first 32 bytes):
00 a3 14 c2 00 a3 14 c2 00 40 18 c2 00 80 18 c2 .........@......
02 00 02 00 ad 4e ad de ff ff ff ff ff ff ff ff .....N..........
backtrace:
[<08cbd8bc>] iommu_domain_alloc+0x24/0x50
[<b835abee>] arm_iommu_create_mapping+0xe4/0x134
[<3acd268d>] arch_setup_dma_ops+0x4c/0x104
[<9f7d2cce>] of_dma_configure+0x19c/0x3a4
[<ba07704b>] really_probe+0xb0/0x47c
[<4f510e4f>] driver_probe_device+0x78/0x1c4
[<7481a0cf>] device_driver_attach+0x58/0x60
[<0ff8f5c1>] __driver_attach+0xb8/0x158
[<86006144>] bus_for_each_dev+0x74/0xb4
[<10159dca>] bus_add_driver+0x1c0/0x200
[<8a265265>] driver_register+0x74/0x108
[<e0f3451a>] exynos_drm_init+0xb0/0x134
[<db3fc7ba>] do_one_initcall+0x90/0x458
[<6da35917>] kernel_init_freeable+0x188/0x200
[<db3f74d4>] kernel_init+0x8/0x110
[<1f3cddf9>] ret_from_fork+0x14/0x20

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Lukasz Luba <lukasz.luba@arm.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>

show more ...

Merge tag 'v5.6-rc3' into sched/core, to pick up fixes and dependent patches

Signed-off-by: Ingo Molnar <mingo@kernel.org>

Merge drm-intel-next-queued into gvt-next

Backmerge to pull in
https://patchwork.freedesktop.org/patch/353621/?series=73544&rev=1

Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>

Merge v5.6-rc2 into drm-misc-next

Lyude needs some patches in 5.6-rc2 and we didn't bring drm-misc-next
forward yet, so it looks like a good occasion.

Signed-off-by: Maxime Ripard <maxime@cerno.tec

Merge v5.6-rc2 into drm-misc-next

Lyude needs some patches in 5.6-rc2 and we didn't bring drm-misc-next
forward yet, so it looks like a good occasion.

Signed-off-by: Maxime Ripard <maxime@cerno.tech>

show more ...

Merge drm/drm-next into drm-intel-next-queued

Moving the base forward since this one was so old.
New base contains fixes that we needed.

Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>

Merge tag 'v5.5-rc4' into locking/kcsan, to resolve conflicts

Conflicts:
init/main.c
lib/Kconfig.debug

Signed-off-by: Ingo Molnar <mingo@kernel.org>

Merge v5.6-rc1 into drm-misc-fixes

We're based on v5.6, need v5.6-rc1 at least. :)

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>

Merge branch 'next' into for-linus

Prepare input updates for 5.6 merge window.

Merge tag 'drm-next-2020-01-30' of git://anongit.freedesktop.org/drm/drm

Pull drm updates from Davbe Airlie:
"This is the main pull request for graphics for 5.6. Usual selection of
changes all ov

Merge tag 'drm-next-2020-01-30' of git://anongit.freedesktop.org/drm/drm

Pull drm updates from Davbe Airlie:
"This is the main pull request for graphics for 5.6. Usual selection of
changes all over.

I've got one outstanding vmwgfx pull that touches mm so kept it
separate until after all of this lands. I'll try and get it to you
soon after this, but it might be early next week (nothing wrong with
code, just my schedule is messy)

This also hits a lot of fbdev drivers with some cleanups.

Other notables:
- vulkan timeline semaphore support added to syncobjs
- nouveau turing secureboot/graphics support
- Displayport MST display stream compression support

Detailed summary:

uapi:
- dma-buf heaps added (and fixed)
- command line add support for panel oreientation
- command line allow overriding penguin count

drm:
- mipi dsi definition updates
- lockdep annotations for dma_resv
- remove dma-buf kmap/kunmap support
- constify fb_ops in all fbdev drivers
- MST fix for daisy chained hotplug-
- CTA-861-G modes with VIC >= 193 added
- fix drm_panel_of_backlight export
- LVDS decoder support
- more device based logging support
- scanline alighment for dumb buffers
- MST DSC helpers

scheduler:
- documentation fixes
- job distribution improvements

panel:
- Logic PD type 28 panel support
- Jimax8729d MIPI-DSI
- igenic JZ4770
- generic DSI devicetree bindings
- sony acx424AKP panel
- Leadtek LTK500HD1829
- xinpeng XPP055C272
- AUO B116XAK01
- GiantPlus GPM940B0
- BOE NV140FHM-N49
- Satoz SAT050AT40H12R2
- Sharp LS020B1DD01D panels.

ttm:
- use blocking WW lock

i915:
- hw/uapi state separation
- Lock annotation improvements
- selftest improvements
- ICL/TGL DSI VDSC support
- VBT parsing improvments
- Display refactoring
- DSI updates + fixes
- HDCP 2.2 for CFL
- CML PCI ID fixes
- GLK+ fbc fix
- PSR fixes
- GEN/GT refactor improvments
- DP MST fixes
- switch context id alloc to xarray
- workaround updates
- LMEM debugfs support
- tiled monitor fixes
- ICL+ clock gating programming removed
- DP MST disable sequence fixed
- LMEM discontiguous object maps
- prefaulting for discontiguous objects
- use LMEM for dumb buffers if possible
- add LMEM mmap support

amdgpu:
- enable sync object timelines for vulkan
- MST atomic routines
- enable MST DSC support
- add DMCUB display microengine support
- DC OEM i2c support
- Renoir DC fixes
- Initial HDCP 2.x support
- BACO support for Arcturus
- Use BACO for runtime PM power save
- gfxoff on navi10
- gfx10 golden updates and fixes
- DCN support on POWER
- GFXOFF for raven1 refresh
- MM engine idle handlers cleanup
- 10bpc EDP panel fixes
- renoir watermark fixes
- SR-IOV fixes
- Arcturus VCN fixes
- GDDR6 training fixes
- freesync fixes
- Pollock support

amdkfd:
- unify more codepath with amdgpu
- use KIQ to setup HIQ rather than MMIO

radeon:
- fix vma fault handler race
- PPC DMA fix
- register check fixes for r100/r200

nouveau:
- mmap_sem vs dma_resv fix
- rewrite the ACR secure boot code for Turing
- TU10x graphics engine support (TU11x pending)
- Page kind mapping for turing
- 10-bit LUT support
- GP10B Tegra fixes
- HD audio regression fix

hisilicon/hibmc:
- use generic fbdev code and helpers

rockchip:
- dsi/px30 support

virtio:
- fb damage support
- static some functions

vc4:
- use dma_resv lock wrappers

msm:
- use dma_resv lock wrappers
- sc7180 display + DSI support
- a618 support
- UBWC support improvements

vmwgfx:
- updates + new logging uapi

exynos:
- enable/disable callback cleanups

etnaviv:
- use dma_resv lock wrappers

atmel-hlcdc:
- clock fixes

mediatek:
- cmdq support
- non-smooth cursor fixes
- ctm property support

sun4i:
- suspend support
- A64 mipi dsi support

rcar-du:
- Color management module support
- LVDS encoder dual-link support
- R8A77980 support

analogic:
- add support for an6345

ast:
- atomic modeset support
- primary plane garbage fix

arcgpu:
- fixes for fourcc handling

tegra:
- minor fixes and improvments

mcde:
- vblank support

meson:
- OSD1 plane AFBC commit

gma500:
- add pageflip support
- reomve global drm_dev

komeda:
- tweak debugfs output
- d32 support
- runtime PM suppotr

udl:
- use generic shmem helpers
- cleanup and fixes"

* tag 'drm-next-2020-01-30' of git://anongit.freedesktop.org/drm/drm: (1998 commits)
drm/nouveau/fb/gp102-: allow module to load even when scrubber binary is missing
drm/nouveau/acr: return error when registering LSF if ACR not supported
drm/nouveau/disp/gv100-: not all channel types support reporting error codes
drm/nouveau/disp/nv50-: prevent oops when no channel method map provided
drm/nouveau: support synchronous pushbuf submission
drm/nouveau: signal pending fences when channel has been killed
drm/nouveau: reject attempts to submit to dead channels
drm/nouveau: zero vma pointer even if we only unreference it rather than free
drm/nouveau: Add HD-audio component notifier support
drm/nouveau: fix build error without CONFIG_IOMMU_API
drm/nouveau/kms/nv04: remove set but not used variable 'width'
drm/nouveau/kms/nv50: remove set but not unused variable 'nv_connector'
drm/nouveau/mmu: fix comptag memory leak
drm/nouveau/gr/gp10b: Use gp100_grctx and gp100_gr_zbc
drm/nouveau/pmu/gm20b,gp10b: Fix Falcon bootstrapping
drm/exynos: Rename Exynos to lowercase
drm/exynos: change callback names
drm/mst: Don't do atomic checks over disabled managers
drm/amdgpu: add the lost mutex_init back
drm/amd/display: skip opp blank or unblank if test pattern enabled
...

show more ...

Merge tag 'exynos-drm-next-for-v5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos into drm-next

Change Exynos DRM specific callback function names
- it changes enable and disa

Merge tag 'exynos-drm-next-for-v5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos into drm-next

Change Exynos DRM specific callback function names
- it changes enable and disable callback functions names of
struct exynos_drm_crtc_ops to atomic_enable and atomic_disable
for consistency.
Modify "EXYNOS" prefix to "Exynos"
- "Exynos" name is a regular trademarked name promoted by its
manufacturer, Samsung Electronics Co., Ltd.. This patch
corrects the name.

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Inki Dae <inki.dae@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1579567970-4467-1-git-send-email-inki.dae@samsung.com

show more ...

drm/exynos: change callback names

This patch changes Exynos specific 'disable' and 'enable'
callback names to 'atomic_disable/enable' for the consistency.

Signed-off-by: Inki Dae <inki.dae@samsung.

drm/exynos: change callback names

This patch changes Exynos specific 'disable' and 'enable'
callback names to 'atomic_disable/enable' for the consistency.

Signed-off-by: Inki Dae <inki.dae@samsung.com>

show more ...

Merge tag 'v5.5-rc5' into next

Sync up with mainline to get SPI "delay" API changes.

Merge drm/drm-next into drm-misc-next

Requested, and we need v5.5-rc1 backported as our current branch is still based on v5.4.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>

Merge tag 'v5.5-rc1' into core/kprobes, to resolve conflicts

Signed-off-by: Ingo Molnar <mingo@kernel.org>

Merge branch 'linus' into sched/urgent, to pick up the latest before merging new patches

Signed-off-by: Ingo Molnar <mingo@kernel.org>

Merge mainline/master into arm/fixes

This brings in the mainline tree right after armsoc contents was merged
this release cycle, so that we can re-run savedefconfig, etc.

Signed-off-by: Olof Johans

Merge mainline/master into arm/fixes

This brings in the mainline tree right after armsoc contents was merged
this release cycle, so that we can re-run savedefconfig, etc.

Signed-off-by: Olof Johansson <olof@lixom.net>

show more ...

Merge tag 'drm-next-2019-11-27' of git://anongit.freedesktop.org/drm/drm

Pull drm updates from Dave Airlie:
"Lots of stuff in here, though it hasn't been too insane this merge
apart from dealing

Merge tag 'drm-next-2019-11-27' of git://anongit.freedesktop.org/drm/drm

Pull drm updates from Dave Airlie:
"Lots of stuff in here, though it hasn't been too insane this merge
apart from dealing with the security fun.

uapi:
- export different colorspace properties on DP vs HDMI
- new fourcc for ARM 16x16 block format
- syncobj: allow querying last submitted timeline value
- DRM_FORMAT_BIG_ENDIAN defined as unsigned

core:
- allow using gem vma manager in ttm
- connector/encoder/bridge doc fixes
- allow more than 3 encoders for a connector
- displayport mst suspend/resume reprobing support
- vram lazy unmapping, uniform vram mm and gem vram
- edid cleanups + AVI informframe bar info
- displayport helpers - dpcd parser added

dp_cec:
- Allow a connector to be associated with a cec device

ttm:
- pipelining with no_gpu_wait fix
- always keep BOs on the LRU

sched:
- allow free_job routine to sleep

i915:
- Block userptr from mappable GTT
- i915 perf uapi versioning
- OA stream dynamic reconfiguration
- make context persistence optional
- introduce DRM_I915_UNSTABLE Kconfig
- add fake lmem testing under unstable
- BT.2020 support for DP MSA
- struct mutex elimination
- Tigerlake display/PLL/power management improvements
- Jasper Lake PCH support
- refactor PMU for multiple GPUs
- Icelake firmware update
- Split out vga + switcheroo code

amdgpu:
- implement dma-buf import/export without helpers
- vega20 RAS enablement
- DC i2c over aux fixes
- renoir GPU reset
- DC HDCP support
- BACO support for CI/VI asics
- MSI-X support
- Arcturus EEPROM support
- Arcturus VCN encode support
- VCN dynamic powergating on RV/RV2

amdkfd:
- add navi12/14/renoir support to kfd

radeon:
- SI dpm fix ported from amdgpu
- fix bad DMA on ppc platforms

gma500:
- memory leak fixes

qxl:
- convert to new gem mmap

exynos:
- build warning fix

komeda:
- add aclk sysfs attribute

v3d:
- userspace cleanup uapi change

i810:
- fix for underflow in dispatch ioctls

ast:
- refactor show_cursor

mgag200:
- refactor show_cursor

arcgpu:
- encoder finding improvements

mediatek:
- mipi_tx, dsi and partial crtc support for MT8183 SoC
- rotation support

meson:
- add suspend/resume support

omap:
- misc refactors

tegra:
- DisplayPort support for Tegra 210, 186 and 194.
- IOMMU-backed DMA API fixes

panfrost:
- fix lockdep issue
- simplify devfreq integration

rcar-du:
- R8A774B1 SoC support
- fixes for H2 ES2.0

sun4i:
- vcc-dsi regulator support

virtio-gpu:
- vmexit vs spinlock fix
- move to gem shmem helpers
- handle large command buffers with cma"

* tag 'drm-next-2019-11-27' of git://anongit.freedesktop.org/drm/drm: (1855 commits)
drm/amdgpu: invalidate mmhub semaphore workaround in gmc9/gmc10
drm/amdgpu: initialize vm_inv_eng0_sem for gfxhub and mmhub
drm/amd/amdgpu/sriov skip RLCG s/r list for arcturus VF.
drm/amd/amdgpu/sriov temporarily skip ras,dtm,hdcp for arcturus VF
drm/amdgpu/gfx10: re-init clear state buffer after gpu reset
merge fix for "ftrace: Rework event_create_dir()"
drm/amdgpu: Update Arcturus golden registers
drm/amdgpu/gfx10: fix out-of-bound mqd_backup array access
drm/amdgpu/gfx10: explicitly wait for cp idle after halt/unhalt
Revert "drm/amd/display: enable S/G for RAVEN chip"
drm/amdgpu: disable gfxoff on original raven
drm/amdgpu: remove experimental flag for Navi14
drm/amdgpu: disable gfxoff when using register read interface
drm/amdgpu/powerplay: properly set PP_GFXOFF_MASK (v2)
drm/amdgpu: fix bad DMA from INTERRUPT_CNTL2
drm/radeon: fix bad DMA from INTERRUPT_CNTL2
drm/amd/display: Fix debugfs on MST connectors
drm/amdgpu/nv: add asic func for fetching vbios from rom directly
drm/amdgpu: put flush_delayed_work at first
drm/amdgpu/vcn2.5: fix the enc loop with hw fini
...

show more ...

Merge drm/drm-next into drm-intel-next-queued

Backmerge to get dfce90259d74 ("Backmerge i915 security patches from
commit 'ea0b163b13ff' into drm-next") and thus 100d46bd72ec ("Merge
Intel Gen8/Gen9

Merge drm/drm-next into drm-intel-next-queued

Backmerge to get dfce90259d74 ("Backmerge i915 security patches from
commit 'ea0b163b13ff' into drm-next") and thus 100d46bd72ec ("Merge
Intel Gen8/Gen9 graphics fixes from Jon Bloomfield.").

Signed-off-by: Jani Nikula <jani.nikula@intel.com>

show more ...

Merge tag 'exynos-drm-next-for-v5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos into drm-next

Fix a build warning at mixer driver
- it fixes a build warning message, 'static

Merge tag 'exynos-drm-next-for-v5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos into drm-next

Fix a build warning at mixer driver
- it fixes a build warning message, 'static' is not at beginning
of declaration [-Wold-style-declaration], by moving static keyword.

Signed-off-by: Dave Airlie <airlied@redhat.com>

# gpg: Signature made Mon 28 Oct 2019 10:31:25 PM AEST
# gpg: using RSA key 020570887DBBB9A5
# gpg: Can't check signature: public key not found
From: Inki Dae <daeinki@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191028123434.30034-1-daeinki@gmail.com

show more ...

drm/exynos: Move static keyword to the front of declaration

Move the static keyword to the front of declaration of modes,
and resolve the following compiler warning that can be seen
when building wi

drm/exynos: Move static keyword to the front of declaration

Move the static keyword to the front of declaration of modes,
and resolve the following compiler warning that can be seen
when building with warnings enabled (W=1):

drivers/gpu/drm/exynos/exynos_mixer.c:1074:2: warning:
‘static’ is not at beginning of declaration [-Wold-style-declaration]

Signed-off-by: Krzysztof Wilczynski <kw@linux.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>

show more ...

Merge branch 'next' into for-linus

Prepare input updates for 5.4 merge window.

Merge branch 'for-next' into for-linus

Signed-off-by: Takashi Iwai <tiwai@suse.de>

Merge branch 'master' into for-5.4/logitech

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>

Merge remote-tracking branch 'remotes/powerpc/topic/ppc-kvm' into kvm-ppc-next

This merges in fixes for the XIVE interrupt controller which touch both
generic powerpc and PPC KVM code. To avoid mer

Merge remote-tracking branch 'remotes/powerpc/topic/ppc-kvm' into kvm-ppc-next

This merges in fixes for the XIVE interrupt controller which touch both
generic powerpc and PPC KVM code. To avoid merge conflicts, these
commits will go upstream via the powerpc tree as well as the KVM tree.

Signed-off-by: Paul Mackerras <paulus@ozlabs.org>

show more ...

Merge branch 'ti-sysc-fixes' into fixes