drm/amdgpu/display: fix 64 bit divide

Use proper helper for 32 bit.

Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amdgpu: flag navi12 and 14 as experimental for 5.4

We can remove this later as things get closer to launch.

Reviewed-by: Xiaojie Yuan <xiaojie.yuan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amdgpu: add navi12 pci id

Add Navi12 PCI id support.

Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Tianci.Yin <tianci.yin@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amdgpu: add navi14 PCI ID for work station SKU

Add the navi14 PCI device id.

Reviewed-by: Feifei Xu <Feifei.Xu@amd.com>
Signed-off-by: Tianci.Yin <tianci.yin@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amdkfd: Swap trap temporary registers in gfx10 trap handler

ttmp[4:5] hold information useful to the debugger. Use ttmp[14:15]
instead, aligning implementation with gfx9 trap handler.

Signed-off-by: Jay Cornwall <jay.cornwall@amd.com>
Reviewed-by: shaoyun liu <Shaoyun.liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/powerplay: implement sysfs for getting dpm clock

With the common interface print_clk_levels can get the following dpm clock:

-pp_dpm_dcefclk
-pp_dpm_fclk
-pp_dpm_mclk
-pp_dpm_sclk
-pp_dpm_socclk

Signed-off-by: Prike Liang <Prike.Liang@amd.com>
Reviewed-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Kevin Wang <kevin1.wang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: Restore backlight brightness after system resume

Laptops with AMD APU doesn't restore display backlight brightness after
system resume.

This issue started when DC was introduced.

Let's use BL_CORE_SUSPENDRESUME so the backlight core calls
update_status callback after system resume to restore the backlight
level.

Tested on Dell Inspiron 3180 (Stoney Ridge) and Dell Latitude 5495
(Raven Ridge).

Cc: <stable@vger.kernel.org>
Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: Implement voltage limitation for dali

[Why]
we only want the lowest voltage to be available for dali.

[How]
Use the get_highest_allowed_voltage_level function
to return 0 for dali

Signed-off-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Reviewed-by: Huang Rui <ray.huang@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: add Asic ID for Dali

Dali is a new asic revision based on raven2

Add the ID and ASICREV_IS_DALI define

Signed-off-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Reviewed-by: Huang Rui <ray.huang@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amdgpu: Fix KFD-related kernel oops on Hawaii

Hawaii needs to flush caches explicitly, submitting an IB in a user
VMID from kernel mode. There is no s_fence in this case.

Fixes: eb3961a57424 ("drm/amdgpu: remove fence context from the job")
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/amdgpu: power up sdma engine when S3 resume back

The sdma_v4 should be ungated when the IP resume back,
otherwise it will hang up and resume time out error.

Signed-off-by: Prike Liang <Prike.Liang@amd.com>
Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amdgpu: Check for valid number of registers to read

Do not try to allocate any amount of memory requested by the user.
Instead limit it to 128 registers. Actually the longest series of
consecutive allowed registers are 48, mmGB_TILE_MODE0-31 and
mmGB_MACROTILE_MODE0-15 (0x2644-0x2673).

Bug: https://bugs.freedesktop.org/show_bug.cgi?id=111273
Signed-off-by: Trek <trek00@inbox.ru>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/radeon: Bail earlier when radeon.cik_/si_support=0 is passed

Bail from the pci_driver probe function instead of from the drm_driver
load function.

This avoid /dev/dri/card0 temporarily getting registered and then
unregistered again, sending unwanted add / remove udev events to
userspace.

Specifically this avoids triggering the (userspace) bug fixed by this
plymouth merge-request:
https://gitlab.freedesktop.org/plymouth/plymouth/merge_requests/59

Note that despite that being an userspace bug, not sending unnecessary
udev events is a good idea in general.

BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=1490490
Reviewed-by: Michel Dänzer <mdaenzer@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: Add missing HBM support and raise Vega20's uclk.

[Why]
When more than 2 displays are connected to the graphics card,
only the minimum memory clock is needed. However, when more
displays are connected, the minimum memory clock is not
sufficient enough to support the overwhelming bandwidth.
System will hang under this circumstance.

Also, the old code didn't address HBM cards, which has 2
pseudo channels. We need to add the HBM part here.

[How]
When graphics card connects to 2 or more displays,
switch to high memory clock. Also, choose memory
multiplier based on whether its regular DRAM or HBM.

Signed-off-by: Zhan Liu <zhan.liu@amd.com>
Reviewed-by: Roman Li <Roman.Li@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: dce11.x /dce12 update formula input

[Description]
1. OUTSTANDING_REQUEST_LIMIT update from 0xFF to 0x1F (HW doc update)
2. using memory type to convert UMC's MCLK to Yclk.

Signed-off-by: Charlene Liu <charlene.liu@amd.com>
Reviewed-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amdgpu: remove program of lbpw for renoir

These is no LBPW on Renoir. So removing program of lbpw for renoir.

Signed-off-by: Aaron Liu <aaron.liu@amd.com>
Reviewed-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amdgpu: Remove clock gating restore.

Restoring clock gating break SMU opeartion afterwards, avoid
this until this further invistigated with SMU.

Signed-off-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com>
Reviewed-by: Tao Zhou <tao.zhou1@amd.com>
Reviewed-and-tested-by: Guchun Chen <guchun.chen@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amdgpu: Add smu lock around in pp_smu_i2c_bus_access

Protect from concurrent SMU accesses.

Signed-off-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com>
Reviewed-by: Tao Zhou <tao.zhou1@amd.com>
Reviewed-and-tested-by: Guchun Chen <guchun.chen@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: update renoir_ip_offset.h

This patch updates MP1_BASE in renoir_ip_offset.h

Signed-off-by: Aaron Liu <aaron.liu@amd.com>
Acked-by: Roman Li <roman.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amdgpu: disable stutter mode for renoir

With stutter mode enabled, NMI prints frequently.
Disable stutter for the moment because NMI warning storm, and will
enable it back till the issue is addressed

Signed-off-by: Aaron Liu <aaron.liu@amd.com>
Acked-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: Add stereo mux and dig programming calls for dcn21

[Why]
The earlier patch "Hook up calls to do stereo mux and dig programming..."
doesn't include update for dcn21.

[How]
Align dcn21 gpio settings with updated stereo control interface.

Signed-off-by: Roman Li <Roman.Li@amd.com>
Acked-by: Aaron Liu <aaron.liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

Merge branch 'linux-5.4' of git://github.com/skeggsb/linux into drm-next

A couple of fixes from Thierry fixing issues as a result of the
reservation object rework in this cycle, as well as a fix from Lyude
to allow the driver to load on Thinkpad P71.

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Ben Skeggs <skeggsb@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/CACAvsv5bLthhq7kh04A0JKxGnBdOTCxiu0hs7FZ1x3_9Rc9YoA@mail.gmail.com

Merge tag 'drm-intel-next-fixes-2019-09-11' of git://anongit.freedesktop.org/drm/drm-intel into drm-next

Few fixes on GGTT and PPGTT around pin, locks, fence and vgpu.

This also includes GVT fixes with two recent fixes:
one for recent guest hang regression and another for guest reset fix.

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190911233309.GA18449@intel.com

Merge tag 'drm-misc-next-fixes-2019-09-06' of git://anongit.freedesktop.org/drm/drm-misc into drm-next

 - A significant number of panfrost fixes for runtime_pm, MMU and GEM support
 - A fix for DCS transfers on mcde

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maxime Ripard <maxime.ripard@bootlin.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190906070500.dfxacpgxoxalcha3@flea

Merge tag 'drm-msm-next-2019-09-06' of https://gitlab.freedesktop.org/drm/msm into drm-next

+ move msm8998 (snapdragon 835) display support
+ dpu fixes/cleanup
+ better async commit support for cursor updates
   (for dpu for now, I'll add mdp5 and possibly
   mdp4 once the movers deliver boxes full of my
   older hardware, so for v5.5)

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Rob Clark <robdclark@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/CAF6AEGuKVayu9bCuVe1RhzS6N6sHTrv4SVAh=qyCrmubX24Xag@mail.gmail.com

drm/nouveau/bar/gm20b: Avoid BAR1 teardown during init

Writing the 0x1704 (BUS_BAR1_BLOCK) register causes the GPU to probe the
memory region at the programmed address. The result is an address decode
error in the external memory controller because address 0, which is what
is written to the register, is not designated as accessible to devices.

Avoid triggering DMA from the GPU by removing teardown of the BAR1.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drm/nouveau: Fix ordering between TTM and GEM release

When the last reference to a TTM BO is dropped, ttm_bo_release() will
acquire the DMA reservation object's wound/wait mutex while trying to
clean up (ttm_bo_cleanup_refs_or_queue() via ttm_bo_release()). It is
therefore essential that drm_gem_object_release() be called after the
TTM BO has been uninitialized, otherwise drm_gem_object_release() has
already destroyed the wound/wait mutex (via dma_resv_fini()).

Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drm/nouveau/prime: Extend DMA reservation object lock

Prior to commit 019cbd4a4feb ("drm/nouveau: Initialize GEM object before
TTM object"), the reservation object was locked across all of the buffer
object creation.

After splitting nouveau_bo_new() into separate nouveau_bo_alloc() and
nouveau_bo_init() functions, the reservation object is passed to the
latter, so the lock needs to be held across that function as well.

Fixes: 019cbd4a4feb ("drm/nouveau: Initialize GEM object before TTM object")
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drm/nouveau: Fix fallout from reservation object rework

Commit 019cbd4a4feb ("drm/nouveau: Initialize GEM object before TTM
object") introduced a subtle change in how the buffer allocation size is
handled. Prior to that change, the size would get aligned to at least a
page, whereas after that change a non-page-aligned size would get passed
through unmodified. This ultimately causes a BUG_ON() to trigger in
drm_gem_private_object_init() and crashes the system.

Fix this by restoring the code that align the allocation size.

Fixes: 019cbd4a4feb ("drm/nouveau: Initialize GEM object before TTM object")
Reported-by: Ilia Mirkin <imirkin@alum.mit.edu>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drm/nouveau/kms/nv50-: Don't create MSTMs for eDP connectors

On the ThinkPad P71, we have one eDP connector exposed along with 5 DP
connectors, resulting in a total of 11 TMDS encoders. Since the GPU on
this system is also capable of MST, we create an additional 4 fake MST
encoders for each DP port. Unfortunately, we also do this for the eDP
port as well, resulting in:

  1 eDP port: +1 TMDS encoder
              +4 DPMST encoders
  5 DP ports: +2 TMDS encoders
              +4 DPMST encoders
      *5 ports
      == 35 encoders

Which breaks things, since DRM has a hard coded limit of 32 encoders.
So, fix this by not creating MSTMs for any eDP connectors. This brings
us down to 31 encoders, although we can do better.

This fixes driver probing for nouveau on the ThinkPad P71.

Signed-off-by: Lyude Paul <lyude@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drm/i915: Use NOEVICT for first pass on attemping to pin a GGTT mmap

The intention is that we first try to pin the current vma into the
mappable aperture only if it is already in use or it fits in the free
space and will not cause contention. The first attempt was meant to be
using PIN_NOEVICT to reuse the current vma if possible, following up
with different eviction strategies.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=111485
Fixes: 6846895fde05 ("drm/i915: Replace PIN_NONFAULT with calls to PIN_NOEVICT")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Matthew Auld <matthew.auld@intel.com>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190826130750.17272-1-chris@chris-wilson.co.uk
(cherry picked from commit ebfdf5cd806b3bbf1ff79e69bce6a28df8bbe39d)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>

drm/i915: to make vgpu ppgtt notificaiton as atomic operation

vgpu ppgtt notification was split into 2 steps, the first step is to
update PVINFO's pdp register and then write PVINFO's g2v_notify register
with action code to tirgger ppgtt notification to GVT side.

currently these steps were not atomic operations due to no any protection,
so it is easy to enter race condition state during the MTBF, stress and
IGT test to cause GPU hang.

the solution is to add a lock to make vgpu ppgtt notication as atomic
operation.

Cc: stable@vger.kernel.org
Signed-off-by: Xiaolin Zhang <xiaolin.zhang@intel.com>
Acked-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/1566543451-13955-1-git-send-email-xiaolin.zhang@intel.com
(cherry picked from commit 52988009843160c5b366b4082ed6df48041c655c)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>

drm/i915: Flush the existing fence before GGTT read/write

Our fence management is lazy, very lazy. If the user marks an object as
untiled, we do not immediately flush the fence but merely mark it as
dirty. On the next use we have to remember to check and remove the fence,
by which time we hope it is idle and we do not have to wait.

v2: Throw away the old fence on the next ggtt_pin.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=111468
Fixes: 1f7fd484fff1 ("drm/i915: Replace i915_vma_put_fence()")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Matthew Auld <matthew.auld@intel.com>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190823153944.20630-1-chris@chris-wilson.co.uk
(cherry picked from commit 636e83f2f208555c3d19d8b454ebdd8d8f4652cc)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>

drm/i915: Hold irq-off for the entire fake lock period

Sadly lockdep records when the irqs are re-enabled and then marks up the
fake lock as being irq-unsafe. Our hand is forced and so we must mark up
the entire fake lock critical section as irq-off.

Hopefully this is the last tweak required!

v2: Not quite, we need to mark the timeline spinlock as irqsafe. That
was a genuine bug being hidden by the earlier lockdep splat.

Fixes: d67739268cf0 ("drm/i915/gt: Mark up the nested engine-pm timeline lock as irqsafe")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190823132700.25286-2-chris@chris-wilson.co.uk
(cherry picked from commit 6dcb85a0ad990455ae7c596e3fc966ad9c1ba9c5)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>

Merge tag 'gvt-next-fixes-2019-09-06' of https://github.com/intel/gvt-linux into drm-intel-next-fixes

gvt-next-fixes-2019-09-06

- Fix guest context head pointer update for hang (Xiaolin)
- Fix guest context ring state for reset (Weinan)

Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
From: Zhenyu Wang <zhenyuw@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190906054255.GC3458@zhen-hp.sh.intel.com

Merge branch 'etnaviv/next' of https://git.pengutronix.de/git/lst/linux into drm-next

single etnaviv fix for an error path.

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Lucas Stach <l.stach@pengutronix.de>
Link: https://patchwork.freedesktop.org/patch/msgid/4ae00cfb47c8e6fffca5dbb45ae9370cd4e5eaf4.camel@pengutronix.de

Merge tag 'drm-next-5.4-2019-08-30' of git://people.freedesktop.org/~agd5f/linux into drm-next

drm-next-5.4-2019-08-30:

amdgpu:
- Add DC support for Renoir
- Add some GPUVM hw bug workarounds
- add support for the smu11 i2c controller
- GPU reset vram lost bug fixes
- Navi1x powergating fixes
- Navi12 power fixes
- Renoir power fixes
- Misc bug fixes and cleanups

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexdeucher@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190830212650.5055-1-alexander.deucher@amd.com

drm/i915/gvt: update RING_START reg of vGPU when the context is submitted to i915

The guest may use this register to identify the running state of one
context. Emulate it as the value in context image as if the context runs
on the GPU hardware.

Signed-off-by: Weinan Li <weinan.z.li@intel.com>
Reviewed-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>

drm/i915/gvt: update vgpu workload head pointer correctly

when creating a vGPU workload, the guest context head pointer should
be updated correctly by comparing with the exsiting workload in the
guest worklod queue including the current running context.

in some situation, there is a running context A and then received 2 new
vGPU workload context B and A. in the new workload context A, it's head
pointer should be updated with the running context A's tail.

v2: walk through guest workload list in backward way.

Cc: stable@vger.kernel.org
Signed-off-by: Xiaolin Zhang <xiaolin.zhang@intel.com>
Reviewed-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>

drm/mcde: Fix DSI transfers

There were bugs in the DSI transfer (read and write) function
as it was only tested with displays ever needing a single byte
to be written. Fixed it up and tested so we can now write
messages of up to 16 bytes and read up to 4 bytes from the
display.

Tested with a Sony ACX424AKP display: this display now self-
identifies and can control backlight in command mode.

Reported-by: kbuild test robot <lkp@intel.com>
Fixes: 5fc537bfd000 ("drm/mcde: Add new driver for ST-Ericsson MCDE")
Reviewed-by: Stephan Gerhold <stephan@gerhold.net>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20190903170804.17053-1-linus.walleij@linaro.org

drm/msm: Use the correct dma_sync calls harder

Looks like the dma_sync calls don't do what we want on armv7 either.
Fixes:

  Unable to handle kernel paging request at virtual address 50001000
  pgd = (ptrval)
  [50001000] *pgd=00000000
  Internal error: Oops: 805 [#1] SMP ARM
  Modules linked in:
  CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.3.0-rc6-00271-g9f159ae07f07 #4
  Hardware name: Freescale i.MX53 (Device Tree Support)
  PC is at v7_dma_clean_range+0x20/0x38
  LR is at __dma_page_cpu_to_dev+0x28/0x90
  pc : [<c011c76c>]    lr : [<c01181c4>]    psr: 20000013
  sp : d80b5a88  ip : de96c000  fp : d840ce6c
  r10: 00000000  r9 : 00000001  r8 : d843e010
  r7 : 00000000  r6 : 00008000  r5 : ddb6c000  r4 : 00000000
  r3 : 0000003f  r2 : 00000040  r1 : 50008000  r0 : 50001000
  Flags: nzCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment none
  Control: 10c5387d  Table: 70004019  DAC: 00000051
  Process swapper/0 (pid: 1, stack limit = 0x(ptrval))

Signed-off-by: Rob Clark <robdclark@chromium.org>
Fixes: 3de433c5b38a ("drm/msm: Use the correct dma_sync calls in msm_gem")
Tested-by: Fabio Estevam <festevam@gmail.com>

drm/msm: remove unlikely() from WARN_ON() conditions

"unlikely(WARN_ON(x))" is excessive. WARN_ON() already uses unlikely()
internally.

Signed-off-by: Denis Efremov <efremov@linux.com>
Cc: Rob Clark <robdclark@gmail.com>
Cc: Sean Paul <sean@poorly.run>
Cc: Joe Perches <joe@perches.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: linux-arm-msm@vger.kernel.org
Cc: dri-devel@lists.freedesktop.org
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>

drm/msm/dsi: Fix return value check for clk_get_parent

clk_get_parent returns an error pointer upon failure, not NULL. So the
checks as they exist won't catch a failure. This patch changes the
checks and the return values to properly handle an error pointer.

Fixes: c4d8cfe516dc ("drm/msm/dsi: add implementation for helper functions")
Cc: Sibi Sankar <sibis@codeaurora.org>
Cc: Sean Paul <seanpaul@chromium.org>
Cc: Rob Clark <robdclark@chromium.org>
Cc: <stable@vger.kernel.org> # v4.19+
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>

drm/msm: add atomic traces

This was useful for debugging fps drops.  I suspect it will be useful
again.

Signed-off-by: Rob Clark <robdclark@chromium.org>
Reviewed-by: Sean Paul <sean@poorly.run>

drm/msm/dpu: async commit support

In addition, moving to kms->flush_commit() lets us drop the only user
of kms->commit().

Signed-off-by: Rob Clark <robdclark@chromium.org>
Reviewed-by: Sean Paul <sean@poorly.run>

drm/msm: async commit support

Now that flush/wait/complete is decoupled from the "synchronous" part of
atomic commit_tail(), add support to defer flush to a timer that expires
shortly before vblank for async commits.  In this way, multiple atomic
commits (for example, cursor updates) can be coalesced into a single
flush at the end of the frame.

v2: don't hold lock over ->wait_flush(), to avoid locking interaction
    that was causing fps drop when combining page flips or non-async
    atomic commits and lots of legacy cursor updates

Signed-off-by: Rob Clark <robdclark@chromium.org>
Reviewed-by: Sean Paul <sean@poorly.run>

drm/msm: split power control from prepare/complete_commit

With atomic commit, ->prepare_commit() and ->complete_commit() may not
be evenly balanced (although ->complete_commit() will complete each
crtc that had been previously prepared).  So these will no longer be
a good place to enable/disable clocks needed for hw access.

Signed-off-by: Rob Clark <robdclark@chromium.org>
Reviewed-by: Sean Paul <sean@poorly.run>

drm/msm: add kms->flush_commit()

Add ->flush_commit(crtc_mask).  Currently a no-op, but kms backends
should migrate writing flush registers to this hook, so we can decouple
pushing updates to hardware, and flushing the updates.

Once we add async commit support, the hw updates will be pushed down to
the hw synchronously, but flushing the updates will be deferred until as
close to vblank as possible, so that multiple updates can be combined in
a single frame.

Signed-off-by: Rob Clark <robdclark@chromium.org>
Reviewed-by: Sean Paul <sean@poorly.run>

drm/msm: convert kms->complete_commit() to crtc_mask

Prep work for async commits, in which case this will be called after we
no longer have the atomic state object.

This drops some wait_for_vblanks(), but those should be unnecessary, as
we call this after waiting for flush to complete.

Signed-off-by: Rob Clark <robdclark@chromium.org>
Reviewed-by: Sean Paul <sean@poorly.run>

drm/msm: add kms->wait_flush()

First step in re-working the atomic related internal API to prepare for
async updates pending.. ->wait_flush() is intended to block until there
is no in-progress flush.

A crtc_mask is used, rather than an atomic state object, as this will
later be used for async flush after the atomic state is destroyed.

This replaces ->wait_for_crtc_commit_done()

v2: update for review comments

Signed-off-by: Rob Clark <robdclark@chromium.org>

drm/msm/dpu: handle_frame_done() from vblank irq

Previously the callback was called from whoever called wait_for_vblank(),
but that isn't a great plan when wait_for_vblank() stops getting called,
and results in frame_done_timer expiring.

Signed-off-by: Rob Clark <robdclark@chromium.org>
Reviewed-by: Sean Paul <sean@poorly.run>
Signed-off-by: Rob Clark <robdclark@chromium.org>

drm/msm/dpu: add real wait_for_commit_done()

Just waiting for next vblank isn't ideal.. we should really be looking
at the hw FLUSH register value to know if there is still an in-progress
flush without stalling unnecessarily when there is no pending flush.

Signed-off-by: Rob Clark <robdclark@chromium.org>
Reviewed-by: Sean Paul <sean@poorly.run>
Signed-off-by: Rob Clark <robdclark@chromium.org>

drm/msm/dpu: unwind async commit handling

It attempted to avoid fps drops in the presence of cursor updates.  But
it is racing, and can result in hw updates after flush before vblank,
which leads to underruns.

Signed-off-by: Rob Clark <robdclark@chromium.org>
Reviewed-by: Sean Paul <sean@poorly.run>
Signed-off-by: Rob Clark <robdclark@chromium.org>

drm/msm/dpu: remove unused arg

Signed-off-by: Rob Clark <robdclark@chromium.org>

drm/msm/dpu: remove some impossible error checking

I'm sure there is plenty more to remove.. this is just some of the ones
I noticed.

Signed-off-by: Rob Clark <robdclark@chromium.org>

drm/msm/dpu: add rotation property

Signed-off-by: Rob Clark <robdclark@chromium.org>

drm/msm: Remove Kconfig default

Remove the default for CONFIG_DRM_MSM and let the user select the driver
manually as one does.

Additionally select QCOM_COMMAND_DB for ARCH_QCOM targets to make sure
it doesn't get missed when we need it for a6xx targets.

v2: Move from default 'm' to no default

Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>

drm/msm/dpu: remove stray "\n"

The extra line-break in traces was annoying me.

Signed-off-by: Rob Clark <robdclark@chromium.org>
Reviewed-by: Sean Paul <sean@poorly.run>
Signed-off-by: Rob Clark <robdclark@chromium.org>

drm/msm/dpu: fix "frame done" timeouts

Previously, dpu_crtc_frame_event_work() would try to aquire all the
modeset locks in order to check whether it can release bandwidth.  (If
we only have cmd-mode display, bandwidth can be released at frame-done
time.)

The problem with this is that it is also responsible for signalling
frame_done_comp, which dpu_crtc_commit_kickoff() waits on if there is
already a frame pending.  This is called in the msm_atomic_commit_tail()
path.. which means that for non-nonblock commits, at least some of the
modeset locks are already held.

Re-work this scheme to use a reference count to track our need to have
clocks enabled.  It is incremented for each atomic commit, and
decremented in the corresponding frame-done.  Additionally, any crtc
used in video mode hold an extra reference while they are enabled.  The
net effect is that we can determine in frame-done whether it is safe to
drop bandwidth without needing to aquire any modeset locks.

Signed-off-by: Rob Clark <robdclark@chromium.org>
Reviewed-by: Sean Paul <sean@chromium.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>

drm/msm: Use struct_size() helper

One of the more common cases of allocation size calculations is finding
the size of a structure that has a zero-sized array at the end, along
with memory for some number of elements for that array. For example:

struct msm_gem_submit {
...
        struct {
...
        } bos[0];
};

Make use of the struct_size() helper instead of an open-coded version
in order to avoid any potential type mistakes.

So, replace the following form:

sizeof(*submit) + ((u64)nr_bos * sizeof(submit->bos[0]))

with:

struct_size(submit, bos, nr_bos)

This code was detected with the help of Coccinelle.

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Rob Clark <robdclark@chromium.org>

drm/msm: Use generic bulk clock function

Remove the homebrewed bulk clock get function and replace it with
devm_clk_bulk_get_all().

Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Reviewed-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Rob Clark <robdclark@chromium.org>

drm/msm/mdp5: Find correct node for creating gem address space

Creating the msm gem address space requires a reference to the dev where
the iommu is located.  The driver currently assumes this is the same as
the platform device, which breaks when the iommu is outside of the
platform device (ie in the parent).  Default to using the platform device,
but check to see if that has an iommu reference, and if not, use the parent
device instead.  This should handle all the various iommu designs for
mdp5 supported systems.

Signed-off-by: Jeffrey Hugo <jeffrey.l.hugo@gmail.com>
Tested-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>

drm/msm/phy/dsi_phy: silence -EPROBE_DEFER warnings

The following errors show up when booting the Nexus 5:

msm_dsi_phy fd922a00.dsi-phy: [drm:dsi_phy_driver_probe] *ERROR*
 dsi_phy_regulator_init: failed to init regulator, ret=-517
msm_dsi_phy fd922a00.dsi-phy: [drm:dsi_phy_driver_probe] *ERROR*
 dsi_phy_driver_probe: failed to init regulator

dsi_phy_regulator_init() already logs the error, so no need to log
the same error a second time in dsi_phy_driver_probe(). This patch
also changes dsi_phy_regulator_init() to not log the error if the
error code is -EPROBE_DEFER to reduce noise in dmesg.

Signed-off-by: Brian Masney <masneyb@onstation.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
[add some {}'s]
Signed-off-by: Rob Clark <robdclark@chromium.org>

drm/msm/a6xx: add missing MODULE_FIRMWARE()

For platforms that require the "zap shader" to take the GPU out of
secure mode at boot, we also need the zap fw to end up in the initrd.

Signed-off-by: Rob Clark <robdclark@chromium.org>
Reviewed-by: Jordan Crouse <jcrouse@codeaurora.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>

drm/msm/mdp5: Add msm8998 support

Add support for MDP5 version v3.0 found on msm8998.

Signed-off-by: Jeffrey Hugo <jeffrey.l.hugo@gmail.com>
Reviewed-by: Rob Clark <robdclark@gmail.com>
[silence unitialized variable warnings]
Signed-off-by: Rob Clark <robdclark@chromium.org>

drm/msm/dpu: remove dpu_mdss:hwversion

Unused and the extra rpm get/put interferes with handover from
bootloader (ie. happens before we have a chance to check if
things are already enabled).

Signed-off-by: Rob Clark <robdclark@chromium.org>
Reviewed-by: Jordan Crouse <jcrouse@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>

drm/msm: Transition console to msm framebuffer

If booting a device using EFI, efifb will likely come up and claim the
console.  When the msm display stack finally comes up, we want the
console to move over to the msm fb, so add support to kick out any
firmware based framebuffers to accomplish the console transition.

Suggested-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Jeffrey Hugo <jeffrey.l.hugo@gmail.com>
Reviewed-by: Rob Clark <robdclark@gmail.com>
Tested-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Rob Clark <robdclark@chromium.org>

drm/msm/hdmi: Convert to use GPIO descriptors

This switches the MSM HDMI code to use GPIO descriptors.
Normally we would fetch the GPIOs from the device with the
flags GPIOD_IN or GPIOD_OUT_[LOW|HIGH] to set up the lines
immediately, but since the code seems eager to actively
drive the lines high/low when turning HDMI on and off, we
just fetch the GPIOs as-is and keep the code explicitly
driving them.

The old code would try legacy bindings (GPIOs without any
"-gpios" suffix) but this has been moved to the gpiolib
as a quirk by the previous patch.

Cc: Rob Clark <robdclark@gmail.com>
Cc: Sean Paul <sean@poorly.run>
Cc: linux-arm-msm@vger.kernel.org
Cc: freedreno@lists.freedesktop.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>

drm/msm/dpu: Drop unused GPIO code

The DPU has some kind of idea that it wants to be able to
bring up power using GPIO lines. The struct dss_gpio is however
completely unused and should this be done, it should be done
using the GPIO descriptor framework rather than this API
which relies on the global GPIO numberspace. Delete this
code before anyone hurt themselves.

The inclusion of <linux/gpio.h> was abused to get some OF
and IRQ headers implicitly included into the DPU utilities,
make these includes explicit and push them down into the actual
implementation.

Cc: Rob Clark <robdclark@gmail.com>
Cc: Sean Paul <sean@poorly.run>
Cc: linux-arm-msm@vger.kernel.org
Cc: freedreno@lists.freedesktop.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>

drm/msm/dsi: Drop unused GPIO includes

This DSI driver uses the new descriptor API so these old
GPIO API includes are surplus.

Cc: Rob Clark <robdclark@gmail.com>
Cc: Sean Paul <sean@poorly.run>
Cc: linux-arm-msm@vger.kernel.org
Cc: freedreno@lists.freedesktop.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>

drm/msm/mdp4: Drop unused GPIO include

This file is not using any symbols from <linux/gpio.h> so just
drop this include.

Cc: Rob Clark <robdclark@gmail.com>
Cc: Sean Paul <sean@poorly.run>
Cc: linux-arm-msm@vger.kernel.org
Cc: freedreno@lists.freedesktop.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Brian Masney <masneyb@onstation.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>

drm/msm: drop use of drmP.h

Drop the deprecated drmP.h header file, and trim msm_drv.h
to the relevant include files.

This resulted in a suprisingly many edits as many files relied
on headers included via msm_drv.h.
But msm_drv.h is not supposed to carry include files it do not need, so
the individual files have to include what extra they needs.

v2:
- Rebased on top of https://gitlab.freedesktop.org/drm/msm.git msm-next

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Rob Clark <robdclark@gmail.com>
Cc: Sean Paul <sean@poorly.run>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Jordan Crouse <jcrouse@codeaurora.org>
Cc: Jeykumar Sankaran <jsanka@codeaurora.org>
Cc: Bruce Wang <bzwang@chromium.org>
Cc: Shayenne Moura <shayenneluzmoura@gmail.com>
Cc: Mamta Shukla <mamtashukla555@gmail.com>
Cc: Jonathan Marek <jonathan@marek.ca>
Cc: Carsten Behling <carsten.behling@googlemail.com>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Maxime Ripard <maxime.ripard@bootlin.com>
Cc: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Cc: Sibi Sankar <sibis@codeaurora.org>
Cc: Todor Tomov <todor.tomov@linaro.org>
Cc: linux-arm-msm@vger.kernel.org
Cc: freedreno@lists.freedesktop.org
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20190804065551.GA5211@ravnborg.org

Merge tag 'exynos-drm-next-for-v5.4' of git://git./linux/kernel/git/daeinki/drm-exynos into drm-next

- JUst one cleanup which drops the use of drmP.h header file.

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Inki Dae <daeinki@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190901120619.3992-1-daeinki@gmail.com

drm/etnaviv: fix missing unlock on error in etnaviv_iommuv1_context_alloc()

Add the missing unlock before return from function etnaviv_iommuv1_context_alloc()
in the error handling case.

Fixes: 27b67278e007 ("drm/etnaviv: rework MMU handling")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>

drm/exynos: drop use of drmP.h

There was a few uses of drmP that was missed in the last
patch removing this header from exynos.

Remove the final uses of this header.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Inki Dae <inki.dae@samsung.com>
Cc: Joonyoung Shim <jy0922.shim@samsung.com>
Cc: Seung-Woo Kim <sw0312.kim@samsung.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Kukjin Kim <kgene@kernel.org>
Cc: Krzysztof Kozlowski <krzk@kernel.org>
Cc: Jingoo Han <jingoohan1@gmail.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>

drm/amdgpu: Move null pointer dereference check

Null pointer dereference check should have been checked,
ahead of below routine.
struct amdgpu_device *adev = hwmgr->adev;

With this commit, it could avoid potential NULL dereference.

Signed-off-by: Austin Kim <austindh.kim@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amdgpu: Fix undefined dm_ip_block for navi12

There is missing "if defined" CONFIG_DRM_AMD_DC block for non DC
configurations. This will cause link error. The patch is fixing that.

Bug: https://bugs.freedesktop.org/show_bug.cgi?id=110979
Signed-off-by: Petr Cvek <petrcvekcz@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amdgpu: fix no interrupt issue for renoir emu (v2)

In renoir's vega10_ih model, there's a security change in mmIH_CHICKEN
register, that limits IH to use physical address (FBPA, GPA) directly.
Those chicken bits need to be programmed first.

Signed-off-by: Aaron Liu <aaron.liu@amd.com>
Reviewed-by: Huang Rui <ray.huang@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amdgpu: update IH_CHICKEN in oss 4.0 IP header for VG/RV series

In Renoir's emulator, those chicken bits need to be programmed.

Signed-off-by: Aaron Liu <aaron.liu@amd.com>
Reviewed-by: Huang Rui <ray.huang@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/powerplay: SMU_MSG_OverridePcieParameters is unsupport for APU

For apu, SMU_MSG_OverridePcieParameters is unsupport.
So return directly in smu_override_pcie_parameters function.

Signed-off-by: Aaron Liu <aaron.liu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Evan Quan <evan.quan@amd.com>
Acked-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amdgpu: Handle job is NULL use case in amdgpu_device_gpu_recover

This should be checked at all places job is accessed.

Signed-off-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/panfrost: Remove unnecessary hwaccess_lock spin_lock

With the introduction of the as_lock to serialize address space registers,
the hwaccess_lock is only used within the job code and is not protecting
anything. panfrost_job_hw_submit() only accesses registers for 1 job slot
and it's already serialized by drm_sched.

Fixes: 7282f7645d06 ("drm/panfrost: Implement per FD address spaces")
Cc: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Signed-off-by: Rob Herring <robh@kernel.org>
Acked-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Reviewed-by: Steven Price <steven.price@arm.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190826223317.28509-9-robh@kernel.org

drm/panfrost: Flush and disable address space when freeing page tables

Currently, page tables are freed without disabling the address space first.
This probably is fine as we'll switch to new page tables when the address
space is allocated again and runtime PM suspend will reset the GPU
clearing the registers. However, it's better to clean up after ourselves.
There is also a problem that we could be accessing the h/w in
tlb_inv_context() when suspended.

Rework the disable code to make sure we flush caches/TLBs and disable the
address space before freeing the page tables if we are not suspended. As
the tlb_inv_context() hook is only called when freeing the page tables and
we do a flush before disabling the AS, lets remove the flush from
tlb_inv_context and avoid any runtime PM issues.

Fixes: 7282f7645d06 ("drm/panfrost: Implement per FD address spaces")
Cc: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Signed-off-by: Rob Herring <robh@kernel.org>
Acked-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
Reviewed-by: Steven Price <steven.price@arm.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190826223317.28509-8-robh@kernel.org

drm/panfrost: Add cache/TLB flush before switching address space

It's not entirely clear if this is required, but add a flush of GPU caches
and TLBs before we change an address space to new page tables.

Fixes: 7282f7645d06 ("drm/panfrost: Implement per FD address spaces")
Cc: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Signed-off-by: Rob Herring <robh@kernel.org>
Acked-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
Reviewed-by: Steven Price <steven.price@arm.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190826223317.28509-7-robh@kernel.org

drm/panfrost: Split mmu_hw_do_operation into locked and unlocked version

In preparation to call mmu_hw_do_operation with the as_lock already held,
Add a mmu_hw_do_operation_locked function.

Fixes: 7282f7645d06 ("drm/panfrost: Implement per FD address spaces")
Cc: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Signed-off-by: Rob Herring <robh@kernel.org>
Acked-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Reviewed-by: Steven Price <steven.price@arm.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190826223317.28509-6-robh@kernel.org

drm/panfrost: Rework page table flushing and runtime PM interaction

There is no point in resuming the h/w just to do flush operations and
doing so takes several locks which cause lockdep issues with the shrinker.
Rework the flush operations to only happen when the h/w is already awake.
This avoids taking any locks associated with resuming which trigger
lockdep warnings.

Fixes: 013b65101315 ("drm/panfrost: Add madvise and shrinker support")
Cc: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Signed-off-by: Rob Herring <robh@kernel.org>
Acked-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
Reviewed-by: Steven Price <steven.price@arm.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190826223317.28509-5-robh@kernel.org

drm/panfrost: Remove unnecessary mmu->lock mutex

There's no need to serialize io-pgtable calls and the as_lock is
sufficient to serialize flush operations, so we can remove the per
page table lock.

Fixes: 7282f7645d06 ("drm/panfrost: Implement per FD address spaces")
Suggested-by: Robin Murphy <robin.murphy@arm.com>
Cc: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Signed-off-by: Rob Herring <robh@kernel.org>
Acked-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
Reviewed-by: Steven Price <steven.price@arm.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190826223317.28509-4-robh@kernel.org

drm/panfrost: Hold runtime PM reference until jobs complete

Doing a pm_runtime_put as soon as a job is submitted is wrong as it should
not happen until the job completes. It works currently because we are
relying on the autosuspend timeout to keep the h/w enabled.

Fixes: f3ba91228e8e ("drm/panfrost: Add initial panfrost driver")
Cc: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Cc: Steven Price <steven.price@arm.com>
Cc: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Signed-off-by: Rob Herring <robh@kernel.org>
Acked-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Reviewed-by: Steven Price <steven.price@arm.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190826223317.28509-3-robh@kernel.org

drm/panfrost: Rework runtime PM initialization

There's a few issues with the runtime PM initialization.

The documentation states pm_runtime_set_active() should be called before
pm_runtime_enable(). The pm_runtime_put_autosuspend() could suspend the GPU
before panfrost_perfcnt_init() is called which touches the h/w. The
autosuspend delay keeps things from breaking. There's no need explicitly
power off the GPU only to wake back up with pm_runtime_get_sync(). Just
delaying pm_runtime_enable to the end of probe is sufficient.

Lets move all the runtime PM calls into the probe() function so they are
all in one place and are done after all initialization.

Cc: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Cc: Steven Price <steven.price@arm.com>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Acked-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
Reviewed-by: Steven Price <steven.price@arm.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190826223317.28509-2-robh@kernel.org

drm/amdgpu: Enable DC on Renoir

Enable DC support for renoir.

Acked-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Roman Li <Roman.Li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: Add DCN2.1 changes to DML

Hook up the DML changes for renoir.

Acked-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Roman Li <Roman.Li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: Correct order of RV family clk managers for Renoir

Need to check for renoir first.

Acked-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Roman Li <Roman.Li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: add Renoir to kconfig

Add a kconfig option to enable renoir.

Acked-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: build dcn21 blocks

Enable the building of dcn21 support.

Acked-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: add dcn21 core DC changes

Add missing parameters, to make dcn21 compile
without errors

Acked-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: add dal_asic_id for renoir

Add the rev id for renoir.

Acked-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: call update_bw_bounding_box

call update_bw_bounding_box in DC construct

Acked-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: Handle Renoir in amdgpu_dm (v2)

Hook up renoir support to KMS.

v2: squash in "Fixes for Renoir in amdgpu_dm"

Acked-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: Handle Renoir in DC

add Renoir DCN version in DC and handle it

Acked-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: Fix register names

rename VM_CONTEXT0 to  MMVM_CONTEXT0 as that is the name defined in
the register files

Acked-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>