Commit graph

54164 commits

Author SHA1 Message Date
Nicholas Kazlauskas
e39575b9c3 drm/amd/display: Fix CRC vblank refs when changing interrupts
[Why]
We only currently drop the vblank reference when the stream is
being removed from the context. We should be dropping it whenever we
disable interrupts and reaquiring it after we re-enable them.

We also never get the extra reference correctly when re-enabling
interrupts, since grabbing the reference has the following condition:

if (!crtc_state->crc_enabled && enable)
        drm_crtc_vblank_get(crtc);

This means that crc_enabled must be *false* in order to grab the extra
reference.

[How]
Always drop the ref whenever we're disabling interrupts.

Only disable CRC capture when the stream is being removed.

Always grab the ref by setting dm_new_crtc_state->crc_enabled = false
before the call to re-enable CRC capture.

Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Reviewed-by: David Francis <David.Francis@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-04-29 14:58:23 -05:00
Nicholas Kazlauskas
8ad278062d drm/amd/display: Disable cursors before disabling planes
[Why]
We can't do cursor programming after the planes have been disabled
since there won't be any pipes - leading to lock warnings and the wrong
cursor state being left in the registers.

When we re-enable the planes after the previous cursor state will also
remain if we don't have a cursor plane.

[How]
If we're disabling the planes then do the cursor programming first.
If we're not disabling the planes then do the cursor programming after.

Introduce the amdgpu_dm_commit_cursors helper to avoid code duplication
for both of these cases.

Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Reviewed-by: David Francis <David.Francis@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-04-29 14:58:16 -05:00
Nicholas Kazlauskas
d6ef9b4175 drm/amd/display: Refactor CRTC interrupt toggling logic
[Why]
The vblank and pageflip interrupts should only be enabled for a CRTC
that's enabled and has active planes.

The current logic takes care of this, but isn't setup to handle the case
where the active plane count goes to zero but the stream remains
enabled.

We currently block this case since we don't allow commits that enable a
CRTC with no active planes, but shouldn't be any reason we can't support
this from a hardware perspective and many userspace applications expect
to be able to do it (like IGT).

[How]
The count_crtc_active_planes function fills in the number of
"active_planes" on the dm_crtc_state. This should be the same as
DC's plane_count on the stream_status but easier to access since we
don't need to lock the private atomic state with the DC context.

Add the "interrupts_enabled" flag to the dm_crtc_state and set it based
on whether the stream exists and if there are active planes on the
stream.

Update the disable and enable logic to make use of this new flag.

There shouldn't be any functional change (yet) with this patch.

Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Reviewed-by: David Francis <David.Francis@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-04-29 14:58:08 -05:00
Wentao Lou
edf1e00082 drm/amdgpu: value of amdgpu_sriov_vf cannot be set into F32_POLL_ENABLE
amdgpu_sriov_vf would return 0x0 or 0x4 to indicate if sriov.
but F32_POLL_ENABLE need 0x0 or 0x1 to determine if enabled.
set 0x4 into F32_POLL_ENABLE would make SDMA0_GFX_RB_WPTR_POLL_CNTL not working.

Signed-off-by: Wentao Lou <Wentao.Lou@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-04-29 14:57:40 -05:00
Evan Quan
beac93e6f8 drm/amdgpu: update Vega20 sdma golden settings
Update Vega20 sdma golden settings.

Signed-off-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-04-29 14:57:07 -05:00
hersen wu
a66d186c88 drm/amd/powerplay: raven 4k@60hz dp monitor always flicking
[WHY] clock unit mis-match between caller DC and SMU interface.
      dc pass lock in mhz. the same unit as smu. no covert is needed.

[HOW] remove covert_10k_to_mhz in smu interface
      this fixes corruption issue with 4k @60 display and stutter
      mode enable

Reviewed-by: Kenneth Feng <kenneth.feng@amd.com>
Signed-off-by: hersen wu <hersenxs.wu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-04-29 14:56:57 -05:00
Colin Ian King
11f874c041 drm/amd/display: fix incorrect null check on pointer
Currently an allocation is being made but the allocation failure
check is being performed on another pointer. Fix this by checking
the correct pointer. Also use the normal kernel idiom for null
pointer checks.

Addresses-Coverity: ("Resource leak")
Fixes: 43e3ac8389 ("drm/amd/display: Add function to copy DC streams")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-04-29 14:56:49 -05:00
james qian wang (Arm Technology China)
42c729418d drm/komeda: Add komeda_kms_check
Implement komeda_kms_check to add all affected_planes (even unchanged) to
drm_atomic_state. since komeda need to re-calculate the resources
assumption in every commit.

v2: Rebase

Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
2019-04-29 12:35:57 +01:00
james qian wang (Arm Technology China)
d29da5d8cd drm/komeda: Add komeda_crtc_funcs
Added functions:
-  komeda_crtc_reset
-  komeda_crtc_vblank_enable
-  komeda_crtc_vblank_disable

Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
2019-04-29 12:35:57 +01:00
james qian wang (Arm Technology China)
98fe3f93a9 drm/komeda: Add komeda_crtc_vblank_enable/disable
Add a new komeda_dev_func->on_off_vblank to enable/disable HW vblank event

Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
2019-04-29 12:35:57 +01:00
james qian wang (Arm Technology China)
b7925b61bd drm/komeda: Add komeda_crtc_atomic_enable/disable
Pass enable/disable command to komeda and adjust komeda hardware for
enable/disable a display instance.

v2: Rebase

Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
2019-04-29 12:35:57 +01:00
james qian wang (Arm Technology China)
20d84aa841 drm/komeda: Add komeda_crtc_prepare/unprepare
These two function will be used by komeda_crtc_enable/disable to do some
prepartion works when enable/disable a crtc. like enable a crtc:
  1. Adjust display operation mode.
  2. Enable/prepare needed clk.

v2: Rebase

Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
2019-04-29 12:35:57 +01:00
james qian wang (Arm Technology China)
a2491b900d drm/komeda: Add komeda_crtc_mode_valid/fixup
komeda_crtc_mode_valid compares the input mode->clk with main engine clk
and AXI clk, and reject the mode if the required pixel clk can not be
satisfied by main engine clk and AXI-clk.

Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
2019-04-29 12:35:57 +01:00
james qian wang (Arm Technology China)
59dd6d58a5 drm/komeda: Add komeda_crtc_atomic_flush
A komeda flush is comprised two steps:
1. update pipeline/component state to HW.
2. call dev_func->flush to notify HW to kickoff the update.

Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
2019-04-29 12:35:57 +01:00
james qian wang (Arm Technology China)
552b831cd5 drm/komeda: Add komeda_release_unclaimed_resources
Komeda driver treats KMS-CRTC/PLANE as user which will acquire pipeline
resources, but we still need to release the unclaimed resources.
crtc_atomic_check is the final check stage, so beside build a display data
pipeline according the crtc_state, but still needs to release/disable the
unclaimed pipeline resources.

v2: Rebase

Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
2019-04-29 12:35:57 +01:00
james qian wang (Arm Technology China)
c3015342b3 drm/komeda: Add komeda_build_display_data_flow
This function builds a display output pipeline according to crtc_state.
And this change only added single pipeline support, the dual pipeline with
slave enabled data flow support will be added in the following change.

v2: Rebase

Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
2019-04-29 12:35:56 +01:00
james qian wang (Arm Technology China)
9e56030941 drm/komeda: Add komeda_plane/plane_helper_funcs
Per komeda design KMS-plane maps to komeda layer input pipeline.
komeda_plane_atomic_check is for building a komeda layer input pipeline.

And KMS-plane is only a user of komeda resources. so there is no real HW
update for plane, but all HW update will be handled in crtc->flush.

v2: Rebase

Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
2019-04-29 12:35:56 +01:00
james qian wang (Arm Technology China)
11bb22ee77 drm/komeda: Add komeda_build_layer_data_flow
build_layer_data_flow builds a input pipeline according to plane_state.
and in this initial stage only added this simplest pipeline usage:
  Layer -> compiz
The scaler and layer_split will be added in the future.

v2:
- Rebase.
- Introduce struct komeda_data_flow_cfg
- Add a function komeda_component_validate_private to replace the MACRO
  component_validate_private

Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
2019-04-29 12:35:56 +01:00
james qian wang (Arm Technology China)
ee6b73d6b0 drm/komeda: Initialize komeda component as drm private object
Initialize koemda_layer, komeda_compiz, komeda_improc and
komeda_timing_ctrlr as drm private object, then track komeda private
component state by drm_atomic_state.

v2:
- Update code after Applied commit:
  b962a12050 ("drm/atomic: integrate modeset lock with private objects")

Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
2019-04-29 12:35:56 +01:00
james qian wang (Arm Technology China)
8d537d3bcb drm/komeda: Add komeda_pipeline/component_get_state_and_set_user
get_state_and_set_user packed get_state and set_user into one function,
which get pipeline/component state for a specific pipeline/component, if
success set the user to it.

v2:
- Rebase.
- Applied commit:
  b962a12050 ("drm/atomic: integrate modeset lock with private objects")
  And delete our private modeset lock for pipeline.

Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
2019-04-29 12:35:56 +01:00
james qian wang (Arm Technology China)
9801a7eadf drm: Add drm_atomic_get_old/new_private_obj_state
This pair of functions return the old/new private object state for the
given private_obj, or NULL if the private_obj is not part of the global
atomic state.

Reviewed-by: Alexandru Gheorghe <alexandru-cosmin.gheorghe@arm.com>
Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
2019-04-29 12:35:56 +01:00
Thomas Gleixner
487f3c7fb1 drm: Simplify stacktrace handling
Replace the indirection through struct stack_trace by using the storage
array based interfaces.

The original code in all printing functions is really wrong. It allocates a
storage array on stack which is unused because depot_fetch_stack() does not
store anything in it. It overwrites the entries pointer in the stack_trace
struct so it points to the depot storage.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Josh Poimboeuf <jpoimboe@redhat.com>
Acked-by: Daniel Vetter <daniel@ffwll.ch>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: intel-gfx@lists.freedesktop.org
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: dri-devel@lists.freedesktop.org
Cc: David Airlie <airlied@linux.ie>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Alexander Potapenko <glider@google.com>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Christoph Lameter <cl@linux.com>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: linux-mm@kvack.org
Cc: David Rientjes <rientjes@google.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: kasan-dev@googlegroups.com
Cc: Mike Rapoport <rppt@linux.vnet.ibm.com>
Cc: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: iommu@lists.linux-foundation.org
Cc: Robin Murphy <robin.murphy@arm.com>
Cc: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: Johannes Thumshirn <jthumshirn@suse.de>
Cc: David Sterba <dsterba@suse.com>
Cc: Chris Mason <clm@fb.com>
Cc: Josef Bacik <josef@toxicpanda.com>
Cc: linux-btrfs@vger.kernel.org
Cc: dm-devel@redhat.com
Cc: Mike Snitzer <snitzer@redhat.com>
Cc: Alasdair Kergon <agk@redhat.com>
Cc: Tom Zanussi <tom.zanussi@linux.intel.com>
Cc: Miroslav Benes <mbenes@suse.cz>
Cc: linux-arch@vger.kernel.org
Link: https://lkml.kernel.org/r/20190425094802.622094226@linutronix.de
2019-04-29 12:37:53 +02:00
Ville Syrjälä
879a4e70f9 drm/i915: Fix ICL output CSC programming
When I refactored the code into its own function I accidentally
misplaced the <<16 shifts for some of the registers causing us
to lose the blue channel entirely.

We should really find a way to test this...

Cc: Uma Shankar <uma.shankar@intel.com>
Fixes: d2c19b06d6 ("drm/i915: Clean up ilk/icl pipe/output CSC programming")
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190425192419.24931-1-ville.syrjala@linux.intel.com
Reviewed-by: Swati Sharma <swati2.sharma@intel.com>
(cherry picked from commit d428ca17ea)
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
2019-04-29 09:49:21 +03:00
Zhao Yakui
8631fef7f2 drm/i915/gvt: Revert "drm/i915/gvt: Refine the snapshort range of I915 MCHBAR to optimize gvt-g boot time"
This reverts commit f74a6d9a2c.

BXT needs to access 0x141000-0x1417ff register to obtain the dram info.
But after the snapshot range of I915_MCHBAR is refined in f74a6d9a2c,
it only initializes the range of 0x144000-0x147fff for VGPU and then
causes that the guest GPU can't get the initialized value for dram
detection on BXT.

Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
2019-04-29 14:26:59 +08:00
Masahiro Yamada
43068cb7ba drm: prefix header search paths with $(srctree)/
Currently, the Kbuild core manipulates header search paths in a crazy
way [1].

To fix this mess, I want all Makefiles to add explicit $(srctree)/ to
the search paths in the srctree. Some Makefiles are already written in
that way, but not all. The goal of this work is to make the notation
consistent, and finally get rid of the gross hacks.

Having whitespaces after -I does not matter since commit 48f6e3cf5b
("kbuild: do not drop -I without parameter").

[1]: https://patchwork.kernel.org/patch/9632347/

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Reviewed-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com>
Acked-by: Liviu Dudau <liviu.dudau@arm.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/1553859161-2628-1-git-send-email-yamada.masahiro@socionext.com
2019-04-26 17:03:23 +02:00
Dave Airlie
7c13e5cc23 Merge tag 'drm-intel-next-fixes-2019-04-25' of git://anongit.freedesktop.org/drm/drm-intel into drm-next
- Use after free fix during GEM_CREATE when reporting back object size
- Icelake DP register programming order fix

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190425061312.GA2919@jlahtine-desk.ger.corp.intel.com
2019-04-26 11:35:59 +10:00
Dave Airlie
5a67928651 - fb_helper: Fix NULL deref in legacy drivers (Noralf)
- leases: Ensure lessees can't connect to objects outside their perview (Daniel)
 - leases: Enforce that lessees hold the lease for implicitly set planes (Daniel)
 - leases: A few non-functional cleanups (Daniel)
 
 Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
 Cc: Noralf Trønnes <noralf@tronnes.org>
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Merge tag 'drm-misc-next-fixes-2019-04-24' of git://anongit.freedesktop.org/drm/drm-misc into drm-next

- fb_helper: Fix NULL deref in legacy drivers (Noralf)
- leases: Ensure lessees can't connect to objects outside their perview (Daniel)
- leases: Enforce that lessees hold the lease for implicitly set planes (Daniel)
- leases: A few non-functional cleanups (Daniel)

Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Noralf Trønnes <noralf@tronnes.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Sean Paul <sean@poorly.run>
Link: https://patchwork.freedesktop.org/patch/msgid/20190424210604.GA32581@art_vandelay
2019-04-26 11:35:44 +10:00
Dave Airlie
6db71bea59 drm/imx: fix DP CSC handling
- Fix the DP color space conversion matrix setup to avoid bugs where
   disabling the overlay plane while both primary and overlay plane are
   routed via the CSC unit would not reconfigure the CSC routing
   properly, leaving the display in a nonworking state, or the CSC
   setting from a previously set mode would be left behind, causing
   wrong colors when reenabling the display in certain configurations.
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Merge tag 'imx-drm-fixes-2019-04-25' of git://git.pengutronix.de/pza/linux into drm-fixes

drm/imx: fix DP CSC handling

- Fix the DP color space conversion matrix setup to avoid bugs where
  disabling the overlay plane while both primary and overlay plane are
  routed via the CSC unit would not reconfigure the CSC routing
  properly, leaving the display in a nonworking state, or the CSC
  setting from a previously set mode would be left behind, causing
  wrong colors when reenabling the display in certain configurations.

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

From: Philipp Zabel <p.zabel@pengutronix.de>
Link: https://patchwork.freedesktop.org/patch/msgid/1556183136.2271.3.camel@pengutronix.de
2019-04-26 10:33:33 +10:00
Dave Airlie
a35d9d6a86 Merge branch 'vmwgfx-fixes-5.1' of git://people.freedesktop.org/~thomash/linux into drm-fixes
A single fix for a layer violation requested by Cristoph.

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Thomas Hellstrom <thellstrom@vmware.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190425204100.3982-1-thellstrom@vmware.com
2019-04-26 10:31:26 +10:00
Dave Airlie
528ffbfe64 - sun4i: Fix module loading / unloading
- vc4: Fix a compilation error and memory leak
 - dw-hdmi: Fix an overflow on Rockchip and SCDC configuration
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Merge tag 'drm-misc-fixes-2019-04-25' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes

- sun4i: Fix module loading / unloading
- vc4: Fix a compilation error and memory leak
- dw-hdmi: Fix an overflow on Rockchip and SCDC configuration

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

From: Maxime Ripard <maxime.ripard@bootlin.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190425132739.pngmfiqucqmulxkz@flea
2019-04-26 10:29:16 +10:00
Dave Airlie
f21492d33e Merge branch 'drm-fixes-5.1' of git://people.freedesktop.org/~agd5f/linux into drm-fixes
- ttm regression fix
- sched documentation fix

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexdeucher@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190424230120.3423-1-alexander.deucher@amd.com
2019-04-26 10:26:02 +10:00
Dave Airlie
b3a39c7982 A fix for display lanes calculation for BXT and a protection
to avoid enabling FEC without DSC.
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Merge tag 'drm-intel-fixes-2019-04-24' of git://anongit.freedesktop.org/drm/drm-intel into drm-fixes

A fix for display lanes calculation for BXT and a protection
to avoid enabling FEC without DSC.

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

From: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190424215359.GA26100@intel.com
2019-04-26 10:13:59 +10:00
Sean Paul
761e473f6b drm/gem: Fix sphinx warnings
Sphinx really wants colons after arguments :/

Fixes the following warnings:
drm_gem.c:1384: warning: Function parameter or member 'fence_array' not described in 'drm_gem_fence_array_add'
drm_gem.c:1384: warning: Function parameter or member 'fence' not described in 'drm_gem_fence_array_add'
drm_gem.c:1435: warning: Function parameter or member 'fence_array' not described in 'drm_gem_fence_array_add_implicit'
drm_gem.c:1435: warning: Function parameter or member 'obj' not described in 'drm_gem_fence_array_add_implicit'
drm_gem.c:1435: warning: Function parameter or member 'write' not described in 'drm_gem_fence_array_add_implicit'

Fixes: 5d5a179d3e ("drm: Add helpers for setting up an array of dma_fence dependencies.")
Cc: Eric Anholt <eric@anholt.net>
Cc: Qiang Yu <yuq825@gmail.com> (v1)
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Maxime Ripard <maxime.ripard@bootlin.com>
Cc: Sean Paul <sean@poorly.run>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: dri-devel@lists.freedesktop.org
Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20190424204916.222155-1-sean@poorly.run
2019-04-25 10:02:10 -04:00
Jonas Karlman
c4cba44eee drm/bridge: dw-hdmi: fix SCDC configuration for ddc-i2c-bus
When ddc-i2c-bus property is used, a NULL pointer dereference is reported:

[   31.041669] Unable to handle kernel NULL pointer dereference at virtual address 00000008
[   31.041671] pgd = 4d3c16f6
[   31.041673] [00000008] *pgd=00000000
[   31.041678] Internal error: Oops: 5 [#1] SMP ARM

[   31.041711] Hardware name: Rockchip (Device Tree)
[   31.041718] PC is at i2c_transfer+0x8/0xe4
[   31.041721] LR is at drm_scdc_read+0x54/0x84
[   31.041723] pc : [<c073273c>]    lr : [<c05926c4>]    psr: 280f0013
[   31.041725] sp : edffdad0  ip : 5ccb5511  fp : 00000058
[   31.041727] r10: 00000780  r9 : edf91608  r8 : c11b0f48
[   31.041728] r7 : 00000438  r6 : 00000000  r5 : 00000000  r4 : 00000000
[   31.041730] r3 : edffdae7  r2 : 00000002  r1 : edffdaec  r0 : 00000000

[   31.041908] [<c073273c>] (i2c_transfer) from [<c05926c4>] (drm_scdc_read+0x54/0x84)
[   31.041913] [<c05926c4>] (drm_scdc_read) from [<c0592858>] (drm_scdc_set_scrambling+0x30/0xbc)
[   31.041919] [<c0592858>] (drm_scdc_set_scrambling) from [<c05cc0f4>] (dw_hdmi_update_power+0x1440/0x1610)
[   31.041926] [<c05cc0f4>] (dw_hdmi_update_power) from [<c05cc574>] (dw_hdmi_bridge_enable+0x2c/0x70)
[   31.041932] [<c05cc574>] (dw_hdmi_bridge_enable) from [<c05aed48>] (drm_bridge_enable+0x24/0x34)
[   31.041938] [<c05aed48>] (drm_bridge_enable) from [<c0591060>] (drm_atomic_helper_commit_modeset_enables+0x114/0x220)
[   31.041943] [<c0591060>] (drm_atomic_helper_commit_modeset_enables) from [<c05c3fe0>] (rockchip_atomic_helper_commit_tail_rpm+0x28/0x64)

hdmi->i2c may not be set when ddc-i2c-bus property is used in device tree.
Fix this by using hdmi->ddc as the i2c adapter when calling drm_scdc_*().
Also report that SCDC is not supported when there is no DDC bus.

Fixes: 264fce6cc2 ("drm/bridge: dw-hdmi: Add SCDC and TMDS Scrambling support")
Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/VE1PR03MB59031814B5BCAB2152923BDAAC210@VE1PR03MB5903.eurprd03.prod.outlook.com
2019-04-25 10:38:21 +02:00
Aleksei Gimbitskii
930c8dfea4 drm/i915/gvt: Check if get_next_pt_type() always returns a valid value
According to gtt_type_table[] function get_next_pt_type() may returns
GTT_TYPE_INVALID in some cases. To prevent driver to try to create memory
page with invalid data type, additional check is added.

Signed-off-by: Aleksei Gimbitskii <aleksei.gimbitskii@intel.com>
Cc: Zhenyu Wang <zhenyuw@linux.intel.com>
Cc: Zhi Wang <zhi.a.wang@intel.com>
Cc: Colin Xu <colin.xu@intel.com>
Reviewed-by: Colin Xu <colin.xu@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
2019-04-25 15:36:29 +08:00
Aleksei Gimbitskii
4feeea1d8d drm/i915/gvt: Use snprintf() to prevent possible buffer overflow.
For printing the intel_vgpu->id, a buffer with fixed length is allocated
on the stack. But if vgpu->id is greater than 6 characters, the buffer
overflow will happen. Even the string of the amount of max vgpu is less
that the length buffer right now, it's better to replace sprintf() with
snprintf().

v2:
- Increase the size of the buffer. (Colin Xu)

This patch fixed the critical issue #673 reported by klocwork.

Signed-off-by: Aleksei Gimbitskii <aleksei.gimbitskii@intel.com>
Cc: Zhenyu Wang <zhenyuw@linux.intel.com>
Cc: Zhi Wang <zhi.a.wang@intel.com>
Cc: Colin Xu <colin.xu@intel.com>
Reviewed-by: Colin Xu <colin.xu@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
2019-04-25 15:34:59 +08:00
Aleksei Gimbitskii
d9420241d0 drm/i915/gvt: Do not copy the uninitialized pointer from fb_info
In the code the memcpy() function copied uninitialized pointer in fb_info
to dmabuf_obj->info. Later the pointer in dmabuf_obj->info will be
initialized. To make the code aligned with requirements of the klocwork
static code analyzer, the uninitialized pointer should be initialized
before memcpy().

v2:
- Initialize fb_info.obj in vgpu_get_plane_info(). (Colin Xu)

This patch fixed the critical issue #632 reported by klockwork.

Signed-off-by: Aleksei Gimbitskii <aleksei.gimbitskii@intel.com>
Cc: Zhenyu Wang <zhenyuw@linux.intel.com>
Cc: Zhi Wang <zhi.a.wang@intel.com>
Cc: Colin Xu <colin.xu@intel.com>
Reviewed-by: Colin Xu <colin.xu@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
2019-04-25 15:34:00 +08:00
Aleksei Gimbitskii
0cf8f58d0a drm/i915/gvt: Remove typedef and let the enumeration starts from zero
Typedef is not recommended in the Linux kernel.The klocwork static code
analyzer takes the enumeration as the full range of intel_gvt_gtt_type_t.
But the intel_gvt_gtt_type_t will never be used in full range. For
example, the GTT_TYPE_INVALID will never be used as an index of an array.
Remove the typedef and let the enumeration starts from zero to pass
klocwork analysis.

This patch fixed the critial issues #483, #551, #665 reported by
klockwork.

v3:
- Remove the typedef and let the enumeration starts from zero.

Signed-off-by: Aleksei Gimbitskii <aleksei.gimbitskii@intel.com>
Cc: Zhenyu Wang <zhenyuw@linux.intel.com>
Cc: Zhi Wang <zhi.a.wang@intel.com>
CC: Colin Xu <colin.xu@intel.com>
Reviewed-by: Colin Xu <colin.xu@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
2019-04-25 15:32:10 +08:00
Xiong Zhang
4a6eccbcb9 drm/i915/gvt: Change fb_info->size from pages to bytes
fb_info->size is in pages, but some function need bytes when it
is as a parameter. Such as:
a. intel_gvt_ggtt_validate_range(), according to function definition
b. vifio_device_gfx_plane_info->size, according to the comment of
   its definition

So change fb_info->size into bytes.

v2: Keep fb_info->size in real size instead of assinging casted page
    size(zhenyu)
v3: obj->size should be page aligned and delete redundant check(zhenyu)

Signed-off-by: Xiong Zhang <xiong.y.zhang@intel.com>
Reviewed-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
2019-04-25 15:29:38 +08:00
Thomas Hellstrom
81103355b1 drm/vmwgfx: Fix dma API layer violation
Remove the check for IOMMU presence since it was considered a
layer violation.
This means we have no reliable way to destinguish between coherent
hardware IOMMU DMA address translations and incoherent SWIOTLB DMA
address translations, which we can't handle. So always presume the
former. This means that if anybody forces SWIOTLB without also setting
the vmw_force_coherent=1 vmwgfx option, driver operation will fail,
like it will on most other graphics drivers.

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
2019-04-25 09:05:03 +02:00
Maarten Lankhorst
462ce5d963 drm/vc4: Fix compilation error reported by kbuild test bot
A pointer to crtc was missing, resulting in the following build error:
drivers/gpu/drm/vc4/vc4_crtc.c:1045:44: sparse: sparse: incorrect type in argument 1 (different base types)
drivers/gpu/drm/vc4/vc4_crtc.c:1045:44: sparse:    expected struct drm_crtc *crtc
drivers/gpu/drm/vc4/vc4_crtc.c:1045:44: sparse:    got struct drm_crtc_state *state
drivers/gpu/drm/vc4/vc4_crtc.c:1045:39: sparse: sparse: not enough arguments for function vc4_crtc_destroy_state

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reported-by: kbuild test robot <lkp@intel.com>
Cc: Eric Anholt <eric@anholt.net>
Link: https://patchwork.freedesktop.org/patch/msgid/2b6ed5e6-81b0-4276-8860-870b54ca3262@linux.intel.com
Fixes: d08106796a ("drm/vc4: Fix memory leak during gpu reset.")
Cc: <stable@vger.kernel.org> # v4.6+
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2019-04-24 17:27:14 +02:00
Noralf Trønnes
1de7259275 drm/fb-helper: Fix drm_fb_helper_firmware_config() NULL pointer deref
Non-atomic drivers like ast doesn't have connector->state set resulting
in a NULL pointer deref:

[   29.609593] BUG: unable to handle kernel NULL pointer dereference at 0000000000000010
[   29.609619] Call Trace:
[   29.609630]  ? drm_helper_probe_single_connector_modes+0x27f/0x680
[   29.609640]  drm_setup_crtcs+0x431/0xd80 [drm_kms_helper]
[   29.753065]  __drm_fb_helper_initial_config_and_unlock+0x6f/0x6a0
[   29.753160]  ? drm_modeset_unlock_all+0x31/0x50 [drm]
[   29.765758]  ast_fbdev_init+0xa8/0xc0 [ast]
[   29.765762]  ast_driver_load.cold.7+0x2b3/0xe11 [ast]
[   29.765775]  drm_dev_register+0x111/0x150 [drm]

Fix by bailing out if the driver does not support atomic modesetting.

Fixes: 09ded8af57 ("drm/i915/fbdev: Move intel_fb_initial_config() to fbdev helper")
Reported-by: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Tested-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20190423145353.30158-1-noralf@tronnes.org
2019-04-24 15:57:43 +02:00
Paul Kocialkowski
e02bc29b2c drm/sun4i: Unbind components before releasing DRM and memory
Our components may still be using the DRM device driver (if only to
access our driver's private data), so make sure to unbind them before
the final drm_dev_put.

Also release our reserved memory after component unbind instead of
before to match reverse creation order.

Fixes: f5a9ed867c ("drm/sun4i: Fix component unbinding and component master deletion")
Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Reviewed-by: Chen-Yu Tsai <wens@csie.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20190424090413.6918-1-paul.kocialkowski@bootlin.com
2019-04-24 15:09:08 +02:00
Daniel Vetter
b8c7d7bc83 drm/atomic: -EACCESS for lease-denied crtc lookup
With the previous patch drm_crtc_find will return NULL when the crtc
isn't in our lease, which will then disable the plane/connector. No
longer an issue since the lessor can't escape their lease terms
anymore, but not quite great semantics yet either.

Catch this and return -EACCES, so that at least evil test cases have a
better chance of making sure the kernel works correctly.

Reviewed-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190228144910.26488-8-daniel.vetter@ffwll.ch
2019-04-24 11:31:17 +02:00
Daniel Vetter
36e4523aaf drm/atomic: Wire file_priv through for property changes
We need this to make sure lessees can only connect their
plane/connectors to crtc objects they own. And note that this is
irrespective of whether the lessor is atomic or not, lessor cannot
prevent lessees from enabling atomic.

Cc: stable@vger.kernel.org
Cc: Keith Packard <keithp@keithp.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190228144910.26488-7-daniel.vetter@ffwll.ch
2019-04-24 11:30:52 +02:00
Daniel Vetter
204f640da6 drm/lease: Make sure implicit planes are leased
If userspace doesn't enable universal planes, then we automatically
add the primary and cursor planes. But for universal userspace there's
no such check (and maybe we only want to give the lessee one plane,
maybe not even the primary one), hence we need to check for the
implied plane.

v2: don't forget setcrtc ioctl.

v3: Still allow disabling of the crtc in SETCRTC.

Cc: stable@vger.kernel.org
Cc: Keith Packard <keithp@keithp.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190228144910.26488-6-daniel.vetter@ffwll.ch
2019-04-24 11:30:32 +02:00
Daniel Vetter
46b757780d drm/lease: Check for lessor outside of locks
The lessor is invariant over a lifetime of a lease, we don't have to
grab any locks for that. Speeds up the common case of not being a lease.

Cc: Keith Packard <keithp@keithp.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20190228144910.26488-5-daniel.vetter@ffwll.ch
2019-04-24 11:29:32 +02:00
Daniel Vetter
4285c7e1aa drm/leases: Don't init to 0 in drm_master_create
We kzalloc.

Cc: Keith Packard <keithp@keithp.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20190228144910.26488-4-daniel.vetter@ffwll.ch
2019-04-24 11:29:06 +02:00
Daniel Vetter
ae9d6c076c drm/lease: Drop recursive leads checks
We disallow subleasing, so no point checking whether the master holds
all the leases - it will.

Spotted while typing exhaustive igt coverage for all these corner
cases.

Cc: Keith Packard <keithp@keithp.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190228144910.26488-3-daniel.vetter@ffwll.ch
2019-04-24 11:28:31 +02:00
Daniel Vetter
e40b764288 drm/leases: Drop object_id validation for negative ids
Not exactly sure what's the aim here, but the canonical nil object has
id == 0, we don't use negative object ids for anything. Plus all
object_id are valided by the object_idr, there's nothing we need to do
on top of that ENOENT check a bit further down.

Spotted while typing exhaustive igt coverage for all these
corner-cases.

Cc: Keith Packard <keithp@keithp.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190228144910.26488-2-daniel.vetter@ffwll.ch
2019-04-24 11:27:54 +02:00