git.monstr.eu Git - linux-2.6-microblaze.git/log

drm/msm/a6xx: Add A610 support

A610 is one of (if not the) lowest-tier SKUs in the A6XX family. It
features no GMU, as it's implemented solely on SoCs with SMD_RPM.
What's more interesting is that it does not feature a VDDGX line
either, being powered solely by VDDCX and has an unfortunate hardware
quirk that makes its reset line broken - after a couple of assert/
deassert cycles, it will hang for good and will not wake up again.

This GPU requires mesa changes for proper rendering, and lots of them
at that. The command streams are quite far away from any other A6XX
GPU and hence it needs special care. This patch was validated both
by running an (incomplete) downstream mesa with some hacks (frames
rendered correctly, though some instructions made the GPU hangcheck
which is expected - garbage in, garbage out) and by replaying RD
traces captured with the downstream KGSL driver - no crashes there,
ever.

Add support for this GPU on the kernel side, which comes down to
pretty simply adding A612 HWCG tables, altering a few values and
adding a special case for handling the reset line.

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/542779/
Signed-off-by: Rob Clark <robdclark@chromium.org>

drm/msm/a6xx: Add support for A619_holi

A619_holi is a GMU-less variant of the already-supported A619 GPU.
It's present on at least SM4350 (holi) and SM6375 (blair). No mesa
changes are required. Add the required kernel-side support for it.

Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/542775/
Signed-off-by: Rob Clark <robdclark@chromium.org>

drm/msm/adreno: Disable has_cached_coherent in GMU wrapper configurations

A610 and A619_holi don't support the feature. Disable it to make the GPU stop
crashing after almost each and every submission - the received data on
the GPU end was simply incomplete in garbled, resulting in almost nothing
being executed properly. Extend the disablement to adreno_has_gmu_wrapper,
as none of the GMU wrapper Adrenos that don't support yet seem to feature it.

Reviewed-by: Akhil P Oommen <quic_akhilpo@quicinc.com>
Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/542774/
Signed-off-by: Rob Clark <robdclark@chromium.org>

drm/msm/a6xx: Introduce GMU wrapper support

Some (particularly SMD_RPM, a.k.a non-RPMh) SoCs implement A6XX GPUs
but don't implement the associated GMUs. This is due to the fact that
the GMU directly pokes at RPMh. Sadly, this means we have to take care
of enabling & scaling power rails, clocks and bandwidth ourselves.

Reuse existing Adreno-common code and modify the deeply-GMU-infused
A6XX code to facilitate these GPUs. This involves if-ing out lots
of GMU callbacks and introducing a new type of GMU - GMU wrapper (it's
the actual name that Qualcomm uses in their downstream kernels).

This is essentially a register region which is convenient to model
as a device. We'll use it for managing the GDSCs. The register
layout matches the actual GMU_CX/GX regions on the "real GMU" devices
and lets us reuse quite a bit of gmu_read/write/rmw calls.

Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/542766/
Signed-off-by: Rob Clark <robdclark@chromium.org>

drm/msm/a6xx: Move CX GMU power counter enablement to hw_init

Since the introduction of A6xx support, we've been enabling the CX GMU
power counter 0 in a bit of a weird spot. Move it to hw_init so that
GMU wrapper GPUs can reuse the same code paths. As a bonus, this order
makes it easier to compare mainline and downstream register access traces.

Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/542765/
Signed-off-by: Rob Clark <robdclark@chromium.org>

drm/msm/a6xx: Extend and explain UBWC config

Rename lower_bit to hbb_lo and explain what it signifies.
Add explanations (wherever possible to other tunables).

Port setting min_access_length, ubwc_mode and hbb_hi from downstream.

Reviewed-by: Rob Clark <robdclark@gmail.com>
Reviewed-by: Akhil P Oommen <quic_akhilpo@quicinc.com>
Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/542764/
Signed-off-by: Rob Clark <robdclark@chromium.org>

drm/msm/a6xx: Remove both GBIF and RBBM GBIF halt on hw init

Currently we're only deasserting REG_A6XX_RBBM_GBIF_HALT, but we also
need REG_A6XX_GBIF_HALT to be set to 0.

This is typically done automatically on successful GX collapse, but in
case that fails, we should take care of it.

Also, add a memory barrier to ensure it's gone through before jumping
to further initialization.

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/542760/
Signed-off-by: Rob Clark <robdclark@chromium.org>

drm/msm/a6xx: Add a helper for software-resetting the GPU

Introduce a6xx_gpu_sw_reset() in preparation for adding GMU wrapper
GPUs and reuse it in a6xx_gmu_force_off().

This helper, contrary to the original usage in GMU code paths, adds
a readback+delay sequence to ensure that the reset is never deasserted
too quickly due to e.g. OoO execution going crazy.

Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/542758/
Signed-off-by: Rob Clark <robdclark@chromium.org>

drm/msm/a6xx: Improve a6xx_bus_clear_pending_transactions()

Unify the indentation and explain the cryptic 0xF value.

Reviewed-by: Akhil P Oommen <quic_akhilpo@quicinc.com>
Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/542756/
Signed-off-by: Rob Clark <robdclark@chromium.org>

drm/msm/a6xx: Move a6xx_bus_clear_pending_transactions to a6xx_gpu

This function is responsible for telling the GPU to halt transactions
on all of its relevant buses, drain them and leave them in a predictable
state, so that the GPU can be e.g. reset cleanly.

Move the function to a6xx_gpu.c, remove the static keyword and add a
prototype in a6xx_gpu.h to accomodate for the move.

Reviewed-by: Akhil P Oommen <quic_akhilpo@quicinc.com>
Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/542762/
Signed-off-by: Rob Clark <robdclark@chromium.org>

drm/msm/a6xx: Move force keepalive vote removal to a6xx_gmu_force_off()

As pointed out by Akhil during the review process of GMU wrapper
introduction [1], it makes sense to move this write into the function
that's responsible for forcibly shutting the GMU off.

It is also very convenient to move this to GMU-specific code, so that
it does not have to be guarded by an if-condition to avoid calling it
on GMU wrapper targets.

Move the write to the aforementioned a6xx_gmu_force_off() to achieve
that. No effective functional change.

[1] https://lore.kernel.org/linux-arm-msm/20230501194022.GA18382@akhilpo-linux.qualcomm.com/

Reviewed-by: Akhil P Oommen <quic_akhilpo@quicinc.com>
Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/542752/
Signed-off-by: Rob Clark <robdclark@chromium.org>

drm/msm/a6xx: Remove static keyword from sptprac en/disable functions

These two will be reused by at least A619_holi in the non-gmu
paths. Turn them non-static them to make it possible.

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/542751/
Signed-off-by: Rob Clark <robdclark@chromium.org>

drm/msm/adreno: Use adreno_is_revn for A690

The adreno_is_revn rework came at the same time as A690 introduction
and that resulted in it not covering all cases. Fix it.

Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/542754/
Signed-off-by: Rob Clark <robdclark@chromium.org>

dt-bindings: display/msm/gmu: Add GMU wrapper

The "GMU Wrapper" is Qualcomm's name for "let's treat the GPU blocks
we'd normally assign to the GMU as if they were a part of the GMU, even
though they are not". It's a (good) software representation of the GMU_CX
and GMU_GX register spaces within the GPUSS that helps us programatically
treat these de-facto GMU-less parts in a way that's very similar to their
GMU-equipped cousins, massively saving up on code duplication.

The "wrapper" register space was specifically designed to mimic the layout
of a real GMU, though it rather obviously does not have the M3 core et al.

To sum it all up, the GMU wrapper is essentially a register space within
the GPU, which Linux sees as a dumbed-down regular GMU: there's no clocks,
interrupts, multiple reg spaces, iommus and OPP. Document it.

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/542750/
Signed-off-by: Rob Clark <robdclark@chromium.org>

dt-bindings: display/msm: gpu: Document GMU wrapper-equipped A6xx

The "GMU Wrapper" is Qualcomm's name for "let's treat the GPU blocks
we'd normally assign to the GMU as if they were a part of the GMU, even
though they are not". It's a (good) software representation of the GMU_CX
and GMU_GX register spaces within the GPUSS that helps us programatically
treat these de-facto GMU-less parts in a way that's very similar to their
GMU-equipped cousins, massively saving up on code duplication.

The "wrapper" register space was specifically designed to mimic the layout
of a real GMU, though it rather obviously does not have the M3 core et al.

GMU wrapper-equipped A6xx GPUs require clocks and clock-names to be
specified under the GPU node, just like their older cousins. Account
for that.

Acked-by: Rob Herring <robh@kernel.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/542748/
Signed-off-by: Rob Clark <robdclark@chromium.org>

drm/msm/dsi: split dsi_ctrl_config() function

It makes no sense to pass NULL parameters to dsi_ctrl_config() in the
disable case. Split dsi_ctrl_config() into enable and disable parts and
drop unused params.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Marijn Suijten <marijn.suijten@somainline.org>
Patchwork: https://patchwork.freedesktop.org/patch/542559/
Link: https://lore.kernel.org/r/20230614224402.296825-2-dmitry.baryshkov@linaro.org

drm/msm/dsi: dsi_host: drop unused clocks

Several source clocks are not used anymore, so stop handling them.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Marijn Suijten <marijn.suijten@somainline.org>
Patchwork: https://patchwork.freedesktop.org/patch/542558/
Link: https://lore.kernel.org/r/20230614224402.296825-1-dmitry.baryshkov@linaro.org

drm/msm/dpu: remove unused INTF_NONE interfaces

sm6115, sm6375 and qcm2290 do not have INTF_0. Drop corresponding
interface definitions.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
Reviewed-by: Marijn Suijten <marijn.suijten@somainline.org>
Patchwork: https://patchwork.freedesktop.org/patch/542180/
Link: https://lore.kernel.org/r/20230613001004.3426676-4-dmitry.baryshkov@linaro.org

drm/msm/dpu: correct MERGE_3D length

Each MERGE_3D block has just two registers. Correct the block length
accordingly.

Fixes: 4369c93cf36b ("drm/msm/dpu: initial support for merge3D hardware block")
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
Patchwork: https://patchwork.freedesktop.org/patch/542177/
Reviewed-by: Marijn Suijten <marijn.suijten@somainline.org>
Link: https://lore.kernel.org/r/20230613001004.3426676-3-dmitry.baryshkov@linaro.org

drm/msm/dpu: fix sc7280 and sc7180 PINGPONG done interrupts

During IRQ conversion we have lost the PP_DONE interrupts for sc7280
platform. This was left unnoticed, because this interrupt is only used
for CMD outputs and probably no sc7[12]80 systems use DSI CMD panels.

Fixes: 667e9985ee24 ("drm/msm/dpu: replace IRQ lookup with the data in hw catalog")
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
Reviewed-by: Marijn Suijten <marijn.suijten@somainline.org>
Patchwork: https://patchwork.freedesktop.org/patch/542175/
Link: https://lore.kernel.org/r/20230613001004.3426676-2-dmitry.baryshkov@linaro.org

drm/msm/dp: Free resources after unregistering them

The DP component's unbind operation walks through the submodules to
unregister and clean things up. But if the unbind happens because the DP
controller itself is being removed, all the memory for those submodules
has just been freed.

Change the order of these operations to avoid the many use-after-free
that otherwise happens in this code path.

Fixes: c943b4948b58 ("drm/msm/dp: add displayPort driver support")
Signed-off-by: Bjorn Andersson <quic_bjorande@quicinc.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/542166/
Link: https://lore.kernel.org/r/20230612220259.1884381-1-quic_bjorande@quicinc.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

drm/msm/dp: Drop aux devices together with DP controller

Using devres to depopulate the aux bus made sure that upon a probe
deferral the EDP panel device would be destroyed and recreated upon next
attempt.

But the struct device which the devres is tied to is the DPUs
(drm_dev->dev), which may be happen after the DP controller is torn
down.

Indications of this can be seen in the commonly seen EDID-hexdump full
of zeros in the log, or the occasional/rare KASAN fault where the
panel's attempt to read the EDID information causes a use after free on
DP resources.

It's tempting to move the devres to the DP controller's struct device,
but the resources used by the device(s) on the aux bus are explicitly
torn down in the error path. The KASAN-reported use-after-free also
remains, as the DP aux "module" explicitly frees its devres-allocated
memory in this code path.

As such, explicitly depopulate the aux bus in the error path, and in the
component unbind path, to avoid these issues.

Fixes: 2b57f726611e ("drm/msm/dp: fix aux-bus EP lifetime")
Signed-off-by: Bjorn Andersson <quic_bjorande@quicinc.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Patchwork: https://patchwork.freedesktop.org/patch/542163/
Link: https://lore.kernel.org/r/20230612220106.1884039-1-quic_bjorande@quicinc.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

drm/msm: provide fb_dirty implemenation

Since commit 93e81e38e197 ("drm/fb_helper: Minimize damage-helper
overhead") the drm_fb_helper_funcs::fb_dirty helper is required for
proper dirty/damage processing. The drm/msm driver requires that to
function to let CMD panels to work. Use simplified version of
drm_fbdev_generic_helper_fb_dirty() to fix support for CMD mode panels.

Reported-by: Degdag Mohamed <degdagmohamed@gmail.com>
Fixes: 93e81e38e197 ("drm/fb_helper: Minimize damage-helper overhead")
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Marijn Suijten <marijn.suijten@somainline.org>
Patchwork: https://patchwork.freedesktop.org/patch/542002/
Link: https://lore.kernel.org/r/20230612031616.3620134-1-dmitry.baryshkov@linaro.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

drm/msm/dsi: Remove incorrect references to slice_count

Currently, slice_count is being used to calculate word count and
pkt_per_line. Instead, these values should be calculated using slice per
packet, which is not the same as slice_count.

Slice count represents the number of slices per interface, and its value
will not always match that of slice per packet. For example, it is possible
to have cases where there are multiple slices per interface but the panel
specifies only one slice per packet.

Thus, use the default value of one slice per packet and remove slice_count
from the aforementioned calculations.

Fixes: 08802f515c3c ("drm/msm/dsi: Add support for DSC configuration")
Fixes: bc6b6ff8135c ("drm/msm/dsi: Use DSC slice(s) packet size to compute word count")
Reviewed-by: Marijn Suijten <marijn.suijten@somainline.org>
Signed-off-by: Jessica Zhang <quic_jesszhan@quicinc.com>
Patchwork: https://patchwork.freedesktop.org/patch/541965/
Link: https://lore.kernel.org/r/20230405-add-dsc-support-v6-5-95eab864d1b6@quicinc.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

drm/msm/dpu: Set DATA_COMPRESS on command mode for DCE/DSC 1.2

Add a DPU INTF op to set the DCE_DATA_COMPRESS bit to enable the
DCE/DSC 1.2 datapath

Note: For now, this op is called for command mode encoders only. Changes to
set DATA_COMPRESS for video mode encoders will be posted along with DSC
v1.2 support for DP.

Signed-off-by: Jessica Zhang <quic_jesszhan@quicinc.com>
Reviewed-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
Reviewed-by: Marijn Suijten <marijn.suijten@somainline.org>
Patchwork: https://patchwork.freedesktop.org/patch/541966/
Link: https://lore.kernel.org/r/20230405-add-dsc-support-v6-4-95eab864d1b6@quicinc.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

drm/msm/dpu: Add DPU_INTF_DATA_COMPRESS feature flag for DPU >= 7.0

In DPU 7.x and later, DSC/DCE enablement registers have been moved from
PINGPONG to INTF. Thus, add a DPU_INTF_DATA_COMPRESS feature flag that will
be set if the DATA_COMPRESS register is in the INTF block.

Reviewed-by: Marijn Suijten <marijn.suijten@somainline.org>
Signed-off-by: Jessica Zhang <quic_jesszhan@quicinc.com>
Patchwork: https://patchwork.freedesktop.org/patch/541967/
Link: https://lore.kernel.org/r/20230405-add-dsc-support-v6-3-95eab864d1b6@quicinc.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

drm/msm/dsi: Reduce pclk rate for compression

Adjust the pclk rate to divide hdisplay by the compression ratio when DSC
is enabled.

Signed-off-by: Jessica Zhang <quic_jesszhan@quicinc.com>
Reviewed-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
Patchwork: https://patchwork.freedesktop.org/patch/541972/
Link: https://lore.kernel.org/r/20230405-add-dsc-support-v6-2-95eab864d1b6@quicinc.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

msm/drm/dsi: Round up DSC hdisplay calculation

Currently, when compression is enabled, hdisplay is reduced via integer
division. This causes issues for modes where the original hdisplay is
not a multiple of 3.

To fix this, use DIV_ROUND_UP to divide hdisplay.

Suggested-by: Marijn Suijten <marijn.suijten@somainline.org>
Fixes: 08802f515c3cf ("drm/msm/dsi: Add support for DSC configuration")
Reviewed-by: Marijn Suijten <marijn.suijten@somainline.org>
Signed-off-by: Jessica Zhang <quic_jesszhan@quicinc.com>
Patchwork: https://patchwork.freedesktop.org/patch/541970/
Link: https://lore.kernel.org/r/20230405-add-dsc-support-v6-1-95eab864d1b6@quicinc.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

drm/msm/dpu: add DSC 1.2 hw blocks for relevant chipsets

Add DSC 1.2 hardware blocks to the catalog with necessary sub-block and
feature flag information. Each display compression engine (DCE) contains
dual DSC encoders so both share same base address but with its own
different sub block address.

changes in v4:
-- delete DPU_DSC_HW_REV_1_1
-- re arrange sc8280xp_dsc[]

changes in v4:
-- fix checkpatch warning

changes in v10:
-- remove hard slice from commit text
-- replace DPU_DSC_NATIVE_422_EN with DPU_DSC_NATIVE_42x_EN
-- change DSC_BLK_1_2 .len from 0x100 to 0x29c

changes in v11:
-- remove comment at DSC_BLK_1_2 marco

Signed-off-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
Signed-off-by: Kuogee Hsieh <quic_khsieh@quicinc.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Marijn Suijten <marijn.suijten@somainline.org>
Patchwork: https://patchwork.freedesktop.org/patch/539507/
Link: https://lore.kernel.org/r/1685036458-22683-10-git-send-email-quic_khsieh@quicinc.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

drm/msm/dpu: add support for DSC encoder v1.2 engine

Add support for DSC 1.2 by providing the necessary hooks to program
the DPU DSC 1.2 encoder.

Changes in v3:
-- fixed kernel test rebot report that "__iomem *off" is declared but not
used at dpu_hw_dsc_config_1_2()
-- unrolling thresh loops

Changes in v4:
-- delete DPU_DSC_HW_REV_1_1
-- delete off and used real register name directly

Changes in v7:
-- replace offset with sblk->enc.base
-- replace ss with slice

Changes in v8:
-- fixed checkpatch warning

Changes in v9:
-- replaced __dsc_calc_ob_max_addr() with __dsc_calc_output_buf_max_addr()
-- replaced variable num_ss with num_softslice
-- remove inline from function declaration

changes in v10:
-- rewording text of changes in v9
-- replace DPU_DSC_NATIVE_422_EN with DPU_DSC_NATIVE_42x_EN
-- replace drm_dsc_calculate_flatness_det_thresh() with drm_dsc_flatness_det_thresh()

Signed-off-by: Kuogee Hsieh <quic_khsieh@quicinc.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Marijn Suijten <marijn.suijten@somainline.org>
Patchwork: https://patchwork.freedesktop.org/patch/539500/
Link: https://lore.kernel.org/r/1685036458-22683-7-git-send-email-quic_khsieh@quicinc.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

drm/msm/dsi: update hdisplay calculation for dsi_timing_setup

Currently, hdisplay is being divided by 3 for DSC. However, this
calculation only works for cases where BPP = 8.

Update hdisplay calculation to be bytes_per_line / 3, so that it
accounts for cases where BPP != 8.

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Marijn Suijten <marijn.suijten@somainline.org>
Signed-off-by: Jessica Zhang <quic_jesszhan@quicinc.com>
Patchwork: https://patchwork.freedesktop.org/patch/539271/
Link: https://lore.kernel.org/r/20230329-rfc-msm-dsc-helper-v14-9-bafc7be95691@quicinc.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

drm/msm/dsi: Use MSM and DRM DSC helper methods

Use MSM and DRM DSC helper methods to configure DSC for DSI.

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Marijn Suijten <marijn.suijten@somainline.org>
Signed-off-by: Jessica Zhang <quic_jesszhan@quicinc.com>
Patchwork: https://patchwork.freedesktop.org/patch/539274/
Link: https://lore.kernel.org/r/20230329-rfc-msm-dsc-helper-v14-8-bafc7be95691@quicinc.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

drm/msm/dpu: Fix slice_last_group_size calculation

Correct the math for slice_last_group_size so that it matches the
calculations downstream.

Fixes: c110cfd1753e ("drm/msm/disp/dpu1: Add support for DSC")
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Marijn Suijten <marijn.suijten@somainline.org>
Signed-off-by: Jessica Zhang <quic_jesszhan@quicinc.com>
Patchwork: https://patchwork.freedesktop.org/patch/539269/
Link: https://lore.kernel.org/r/20230329-rfc-msm-dsc-helper-v14-7-bafc7be95691@quicinc.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

drm/msm/dpu: Use fixed DRM DSC helper for det_thresh_flatness

The current dpu_hw_dsc calculation for det_thresh_flatness does not
match the downstream calculation or the DSC spec.

Use the DRM DSC helper for det_thresh_flatness to match downstream
implementation and the DSC spec.

Fixes: c110cfd1753e ("drm/msm/disp/dpu1: Add support for DSC")
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Marijn Suijten <marijn.suijten@somainline.org>
Signed-off-by: Jessica Zhang <quic_jesszhan@quicinc.com>
Patchwork: https://patchwork.freedesktop.org/patch/539275/
Link: https://lore.kernel.org/r/20230329-rfc-msm-dsc-helper-v14-6-bafc7be95691@quicinc.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

drm/msm: Add MSM-specific DSC helper methods

Introduce MSM-specific DSC helper methods, as some calculations are
common between DP and DSC.

Reviewed-by: Marijn Suijten <marijn.suijten@somainline.org>
Signed-off-by: Jessica Zhang <quic_jesszhan@quicinc.com>
Patchwork: https://patchwork.freedesktop.org/patch/539272/
Link: https://lore.kernel.org/r/20230329-rfc-msm-dsc-helper-v14-5-bafc7be95691@quicinc.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

drm/msm/dsi: use DRM DSC helpers for DSC setup

Use new DRM DSC helpers to setup DSI DSC configuration. The
initial_scale_value needs to be adjusted according to the standard, but
this is a separate change.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
Reviewed-by: Marijn Suijten <marijn.suijten@somainline.org>
Signed-off-by: Jessica Zhang <quic_jesszhan@quicinc.com>
Patchwork: https://patchwork.freedesktop.org/patch/539276/
Link: https://lore.kernel.org/r/20230329-rfc-msm-dsc-helper-v14-4-bafc7be95691@quicinc.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

drm/display/dsc: Add drm_dsc_get_bpp_int helper

Add helper to get the integer value of drm_dsc_config.bits_per_pixel

Reviewed-by: Marijn Suijten <marijn.suijten@somainline.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Jessica Zhang <quic_jesszhan@quicinc.com>
Patchwork: https://patchwork.freedesktop.org/patch/539268/
Link: https://lore.kernel.org/r/20230329-rfc-msm-dsc-helper-v14-3-bafc7be95691@quicinc.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

drm/display/dsc: add helper to set semi-const parameters

Add a helper setting config values which are typically constant across
operating modes (table E-4 of the standard) and mux_word_size (which is
a const according to 3.5.2).

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Marijn Suijten <marijn.suijten@somainline.org>
Signed-off-by: Jessica Zhang <quic_jesszhan@quicinc.com>
Patchwork: https://patchwork.freedesktop.org/patch/539280/
Link: https://lore.kernel.org/r/20230329-rfc-msm-dsc-helper-v14-2-bafc7be95691@quicinc.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

drm/display/dsc: Add flatness and initial scale value calculations

Add helpers to calculate det_thresh_flatness and initial_scale_value as
these calculations are defined within the DSC spec.

Reviewed-by: Marijn Suijten <marijn.suijten@somainline.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Jessica Zhang <quic_jesszhan@quicinc.com>
Patchwork: https://patchwork.freedesktop.org/patch/539282/
Link: https://lore.kernel.org/r/20230329-rfc-msm-dsc-helper-v14-1-bafc7be95691@quicinc.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

drm/msm/dpu/catalog: define DSPP blocks found on sdm845

Add definitions of DSPP blocks present on the sdm845 platform. This
should enable color-management on sdm845-bassed devices.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
Reviewed-by: Marijn Suijten <marijn.suijten@somainline.org>
Reviewed-by: Sumit Semwal <sumit.semwal@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/542142/
Link: https://lore.kernel.org/r/20230612182534.3345805-2-dmitry.baryshkov@linaro.org

drm/msm/dpu: do not enable color-management if DSPPs are not available

We can not support color management without DSPP blocks being provided
in the HW catalog. Do not enable color management for CRTCs if num_dspps
is 0.

Fixes: 4259ff7ae509 ("drm/msm/dpu: add support for pcc color block in dpu driver")
Reported-by: Yongqin Liu <yongqin.liu@linaro.org>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
Reviewed-by: Marijn Suijten <marijn.suijten@somainline.org>
Reviewed-by: Sumit Semwal <sumit.semwal@linaro.org>
Tested-by: Yongqin Liu <yongqin.liu@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/542141/
Link: https://lore.kernel.org/r/20230612182534.3345805-1-dmitry.baryshkov@linaro.org

drm/msm/adreno: make adreno_is_a690()'s argument const

Change adreno_is_a690() prototype to accept the const struct adreno_gpu
pointer instead of a non-const one. This fixes the following warning:

In file included from drivers/gpu/drm/msm/msm_drv.c:33:
drivers/gpu/drm/msm/adreno/adreno_gpu.h: In function ‘adreno_is_a660_family’:
drivers/gpu/drm/msm/adreno/adreno_gpu.h:303:54: warning: passing argument 1 of ‘adreno_is_a690’ discards ‘const’ qualifier from pointer target type [-Wdiscarded-qualifiers]
303 | return adreno_is_a660(gpu) || adreno_is_a690(gpu) || adreno_is_7c3(gpu);

Fixes: 1b90e8f8879c ("drm/msm/adreno: change adreno_is_* functions to accept const argument")
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Rob Clark <robdclark@gmail.com>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Patchwork: https://patchwork.freedesktop.org/patch/542138/
Link: https://lore.kernel.org/r/20230612182527.3345786-1-dmitry.baryshkov@linaro.org

Merge branch 'drm-next' of git://anongit.freedesktop.org/drm/drm into msm-next-lumag-base

Merge the drm-next tree to pick up the DRM DSC helpers (merged via
drm-intel-next tree). MSM DSC v1.2 patches depend on these helpers.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

drm/msm/adreno: change adreno_is_* functions to accept const argument

All adreno_is_*() functions do not modify their argument in any way, so
they can be changed to accept const struct adreno_gpu pointer.

Suggested-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Patchwork: https://patchwork.freedesktop.org/patch/531706/
Signed-off-by: Rob Clark <robdclark@chromium.org>

drm/msm/adreno: warn if chip revn is verified before being set

The commit 010c8bbad2cb ("drm: msm: adreno: Disable preemption on Adreno
510") tried to check GPU's revn before revn being set. Add WARN_ON_ONCE
to prevent such bugs from happening again. A separate helper is
necessary so that the warning is displayed really just once instead of
being displayed for each of comparisons.

Suggested-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Patchwork: https://patchwork.freedesktop.org/patch/531705/
Signed-off-by: Rob Clark <robdclark@chromium.org>

drm/msm/a5xx: really check for A510 in a5xx_gpu_init

The commit 010c8bbad2cb ("drm: msm: adreno: Disable preemption on Adreno
510") added special handling for a510 (this SKU doesn't seem to support
preemption, so the driver should clamp nr_rings to 1). However the
gpu->revn is not yet set (it is set later, in adreno_gpu_init()) and
thus the condition is always false. Check config->rev instead.

Fixes: 010c8bbad2cb ("drm: msm: adreno: Disable preemption on Adreno 510")
Reported-by: Adam Skladowski <a39.skl@gmail.com>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Tested-by: Adam Skladowski <a39.skl@gmail.com>
Patchwork: https://patchwork.freedesktop.org/patch/531511/
Signed-off-by: Rob Clark <robdclark@chromium.org>

drm/msm/a6xx: Fix a690 CP_PROTECT settings

Allow access to CP_PERFCTR_CP_SEL[n] and RB_PERFCTR_RB_SEL which are
used by fdperf and pps-provider (perfetto).

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

drm/msm/adreno: Add Adreno A690 support

Introduce support for the Adreno A690, found in Qualcomm SC8280XP.

Tested-by: Steev Klimaszewski <steev@kali.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Bjorn Andersson <quic_bjorande@quicinc.com>
Patchwork: https://patchwork.freedesktop.org/patch/540335/
Signed-off-by: Rob Clark <robdclark@chromium.org>

drm/msm: Move cmdstream dumping out of sched kthread

This is something that can block for arbitrary amounts of time as
userspace consumes from the FIFO. So we don't really want this to
be in the fence signaling path.

Signed-off-by: Rob Clark <robdclark@chromium.org>
Patchwork: https://patchwork.freedesktop.org/patch/532617/

drm/msm/a6xx: don't set IO_PGTABLE_QUIRK_ARM_OUTER_WBWA with coherent SMMU

If the Adreno SMMU is dma-coherent, allocation will fail unless we
disable IO_PGTABLE_QUIRK_ARM_OUTER_WBWA. Skip setting this quirk for the
coherent SMMUs (like we have on sm8350 platform).

Fixes: 54af0ceb7595 ("arm64: dts: qcom: sm8350: add GPU, GMU, GPU CC and SMMU nodes")
Reported-by: David Heidelberg <david@ixit.cz>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Tested-by: David Heidelberg <david@ixit.cz>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Tested-by: Konrad Dybcio <konrad.dybcio@linaro.org> # SM8450 HDK
Patchwork: https://patchwork.freedesktop.org/patch/531562/
Signed-off-by: Rob Clark <robdclark@chromium.org>

drm/msm: drop unused ring variable in msm_ioctl_gem_submit()

The variable ring is not used by msm_parse_deps() and
msm_ioctl_gem_submit() and thus can be dropped.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/529340/
Signed-off-by: Rob Clark <robdclark@chromium.org>

drm/msm/adreno: fix sparse warnings in a6xx code

Sparse reports plenty of warnings against the a6xx code because of
a6xx_gmu::mmio and a6xx_gmu::rscc members. For some reason they were
defined as __iomem pointers rather than pointers to __iomem memory.
Correct the __iomem attribute.

Fixes: 02ef80c54e7c ("drm/msm/a6xx: update pdc/rscc GMU registers for A640/A650")
Reported-by: kernel test robot <lkp@intel.com>
Link: https://lore.kernel.org/oe-kbuild-all/202304070550.NrbhJCvP-lkp@intel.com/
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/531583/
Signed-off-by: Rob Clark <robdclark@chromium.org>

Merge branches 'msm-next-lumag-core', 'msm-next-lumag-dpu', 'msm-next-lumag-dp', 'msm-next-lumag-dsi' and 'msm-next-lumag-mdp5' into msm-next-lumag

Core:
- Add Marijn Suijten as drm/msm reviewer
- Adreno A660 bindings
- SM8350 MDSS bindings fix

DP:
- Removed obsolete USB-PD remains
- Documented DP compatible string for sm8550 platform

DPU:
- Added support for DPU on sm6350 and sm6375 platforms
- Implemented tearcheck support to support vsync on SM150 and newer platforms
- Enabled missing features (DSPP, DSC, split display) on sc8180x, sc8280xp, sm8450
- Enabled writeback on sc7280
- Enabled DSC on msm8998
- Native HDMI output support
- Dropped unused features: regdma, GC, IGC
- Fixed the DSC flush operations
- Simplified QoS handling, removing obsolete and unused features and merging
SSPP and WB code paths
- Reworked dpu_encoder initialisation path

DSI:
- Added support for DSI and 28nm DSI PHY on MSM8226 platform
- Added support for DSI on sm6350 and sm6375 platforms
- Dropped powerup quirks in favour of using pre_enable_prev_first for
downstream bridges
- Fixed 14nm DSI PHY programming

MDP5:
- Added support for display controller on MSM8226 platform

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

Merge tag 'drm-intel-gt-next-2023-06-08' of git://anongit.freedesktop.org/drm/drm-intel into drm-next

UAPI Changes:

- I915_GEM_CREATE_EXT_SET_PAT for Mesa on Meteorlake.

Driver Changes:

Fixes/improvements/new stuff:

- Use large rings for compute contexts (Chris Wilson)
- Better logging/debug of unexpected GuC communication issues (Michal Wajdeczko)
- Clear out entire reports after reading if not power of 2 size (Ashutosh Dixit)
- Limit lmem allocation size to succeed on SmallBars (Andrzej Hajda)
- perf/OA capture robustness improvements on DG2 (Umesh Nerlige Ramappa)
- Fix error code in intel_gsc_uc_heci_cmd_submit_nonpriv() (Dan Carpenter)

Future platform enablement:

- Add workaround 14016712196 (Tejas Upadhyay)
- HuC loading for MTL (Daniele Ceraolo Spurio)
- Allow user to set cache at BO creation (Fei Yang)

Miscellaneous:

- Use system include style for drm headers (Jani Nikula)
- Drop legacy CTB definitions (Michal Wajdeczko)
- Turn off the timer to sample frequencies when GT is parked (Ashutosh Dixit)
- Make PMU sample array two-dimensional (Ashutosh Dixit)
- Use the correct error value when kernel_context() fails (Andi Shyti)
- Fix second parameter type of pre-gen8 pte_encode callbacks (Nathan Chancellor)
- Fix parameter in gmch_ggtt_insert_{entries, page}() (Nathan Chancellor)
- Fix size_t format specifier in gsccs_send_message() (Nathan Chancellor)
- Use the fdinfo helper (Tvrtko Ursulin)
- Add some missing error propagation (Tvrtko Ursulin)
- Reduce I915_MAX_GT to 2 (Matt Atwood)
- Rename I915_PMU_MAX_GTS to I915_PMU_MAX_GT (Matt Atwood)
- Remove some obsolete definitions (John Harrison)

Merges:

- Merge drm/drm-next into drm-intel-gt-next (Tvrtko Ursulin)

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/ZIH09fqe5v5yArsu@tursulin-desk

Merge tag 'drm-intel-next-2023-06-05' of git://anongit.freedesktop.org/drm/drm-intel into drm-next

drm/i915 features for v6.5:

Features and functionality:
- Meteorlake (MTL) display enabling (Mika, Radhakrishna, José, Ankit, Clint,
Gustavo, Imre, Anusha, Juha-Pekka, Matt)
- Allow VRR to be toggled during fastsets (Ville)
- Allow arbitrary refresh rates with VRR eDP panels (Ville)
- Support async flips on linear buffers on display ver 12+ (Arun)
- New debugfs for display clock frequencies (Bhanuprakash)
- Taint kernel when force probing unsupported devices (Jani)
- Expose CRTC CTM property on ILK/SNB/VLV (Ville)

DRM subsystem changes:
- EDID changes to support further conversion to struct drm_edid (Jani)
- Move i915 DSC parameter code to common DRM helpers (Dmitry Baryshkov)

Refactoring and cleanups:
- CSC color refactoring (Ville)
- VRR cleanups (Ville)
- Finish i915 conversion to struct drm_edid (Jani)
- Start high level display driver file (Jani)
- Hotplug refactoring (Ville)
- Misc display refactoring and cleanups (Jani, Ville)
- Use device based logging for state checker warnings (Jani)
- Split out hotplug and display irq handling (Jani)
- Move display device info and probe under display/ (Matt)
- HDCP cleanups (Suraj)
- Use localized warning ignores instead of per file (Jani)
- Remove superfluous enum i915_drm_suspend_mode (Maarten)
- PSR, pfit, scaler and chicken register definition cleanups (Ville)
- Constify pointers to hwmon_channel_info (Krzysztof Kozlowski)
- Replace all non-returning strlcpy with strscpy (Azeem Shaikh)
- Refactor VBT aux channel and DDC pin mapping (Ville)
- Include cleanups (Jani)

Fixes:
- Fix modeset locking issue in DP MST HDCP (Suraj)
- Fix disconnected Type-C/DP-alt disable at probe (Imre)
- Fix HDMI PCON DSC usage and color conversions (Ankit)
- Fix g4x HDMI infoframe/audio transmission port usage (Ville)
- Avoid use-after-free when DP connector init fails (Maarten)
- Fix voltage level for 480 MHz CDCLK (Chaitanya)
- Check HPD live state during eDP probe (Ville)
- Fix active port PLL selection for secondary MST streams (Imre)
- Check pipe source size when using SKL+ scalers (Ville)
- Fix MIPI DSI sleep sequences (Hans de Goede)
- Fix DPCD register write order to match 128b/132b requirement (Arun)
- Increase AUX timeout for Type-C (Suraj)
- Communicate display power demands to pcode (Stan)
- Fix potential division by zero in DSC compute config (Nikita Zhandarovich)
- Fix fast wake AUX sync length (Jouni)
- Fix potential oops on intel_get_crtc_new_encoder() (Ville)

Merges:
- drm-next backmerges (Rodrigo, Jani)

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/87zg5eat32.fsf@intel.com

Merge tag 'drm-misc-next-2023-06-07' of git://anongit.freedesktop.org/drm/drm-misc into drm-next

drm-misc-next for v6.5:

UAPI Changes:

Cross-subsystem Changes:

Core Changes:

Driver Changes:

* bridge
   * imx: Fix module linking
   * tc358762: Support reset GPIO

* meson
   * Add support for MIPI DSI displays; plus fixes and DT bindings

* panel
   * Add Support for Rocktech RK043FN48H; plus DT bindings
   * Add support for Starry himax83102-j02; plus DT bindings
   * Add support for Starry ili9882t; plus DT bindings

* virtio
   * Support sync-object UAPI

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20230607085644.GA12673@linux-uq9g

Merge tag 'drm-habanalabs-next-2023-06-08' of https://git./linux/kernel/git/ogabbay/linux into drm-next

This tag contains additional habanalabs driver changes for v6.5:

- uAPI changes:
  - Return 0 when user queries if there was a h/w or f/w error and no such error happened.
    Previously we returned an error in such case.

- New features and improvements:
  - Add pci health check when we lose connection with the firmware. This can be used to
    distinguish between pci link down and firmware getting stuck.
  - Add more info to the error print when TPC interrupt occur.
  - Reduce amount of code under mutex in the command submission of signal event.

- Firmware related fixes:
  - Fixes to the handshake protocol during f/w initialization.
  - Display information that the f/w sends us when encountering a DMA error.
  - Do soft-reset using a message sent to firmware instead of writing to MMIO.
  - Prepare generic code to extract f/w version numbers.

- Bug fixes and code cleanups. Notable fixes are:
  - Unsecure certain TPC registers that the user should access.
  - Fix handling of QMAN errors
  - Fix memory leak when recording errors (to later pass them to the user)
  - Multiple fixes to razwi interrupt handling code

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Oded Gabbay <ogabbay@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230608103043.GA2699019@ogabbay-vm-u20.habana-labs.com

Merge tag 'drm-next-20230529' of git://git./linux/kernel/git/pinchartl/linux into drm-next

Renesas DRM/KMS drivers:

- Group drivers in renesas subdirectory to prepare for new platform
- Drop deprecated R-Car H3 ES1.x support

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230602111504.GA24855@pendragon.ideasonboard.com

drm/msm/a6xx: initialize GMU mutex earlier

Move GMU mutex initialization earlier to make sure that it is always
initialized. a6xx_destroy can be called from ther failure path before
GMU initialization.

This fixes the following backtrace:

------------[ cut here ]------------
DEBUG_LOCKS_WARN_ON(lock->magic != lock)
WARNING: CPU: 0 PID: 58 at kernel/locking/mutex.c:582 __mutex_lock+0x1ec/0x3d0
Modules linked in:
CPU: 0 PID: 58 Comm: kworker/u16:1 Not tainted 6.3.0-rc5-00155-g187c06436519 #565
Hardware name: Qualcomm Technologies, Inc. SM8350 HDK (DT)
Workqueue: events_unbound deferred_probe_work_func
pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : __mutex_lock+0x1ec/0x3d0
lr : __mutex_lock+0x1ec/0x3d0
sp : ffff800008993620
x29: ffff800008993620 x28: 0000000000000002 x27: ffff47b253c52800
x26: 0000000001000606 x25: ffff47b240bb2810 x24: fffffffffffffff4
x23: 0000000000000000 x22: ffffc38bba15ac14 x21: 0000000000000002
x20: ffff800008993690 x19: ffff47b2430cc668 x18: fffffffffffe98f0
x17: 6f74616c75676572 x16: 20796d6d75642067 x15: 0000000000000038
x14: 0000000000000000 x13: ffffc38bbba050b8 x12: 0000000000000666
x11: 0000000000000222 x10: ffffc38bbba603e8 x9 : ffffc38bbba050b8
x8 : 00000000ffffefff x7 : ffffc38bbba5d0b8 x6 : 0000000000000222
x5 : 000000000000bff4 x4 : 40000000fffff222 x3 : 0000000000000000
x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff47b240cb1880
Call trace:
__mutex_lock+0x1ec/0x3d0
mutex_lock_nested+0x2c/0x38
a6xx_destroy+0xa0/0x138
a6xx_gpu_init+0x41c/0x618
adreno_bind+0x188/0x290
component_bind_all+0x118/0x248
msm_drm_bind+0x1c0/0x670
try_to_bring_up_aggregate_device+0x164/0x1d0
__component_add+0xa8/0x16c
component_add+0x14/0x20
dsi_dev_attach+0x20/0x2c
dsi_host_attach+0x9c/0x144
devm_mipi_dsi_attach+0x34/0xac
lt9611uxc_attach_dsi.isra.0+0x84/0xfc
lt9611uxc_probe+0x5b8/0x67c
i2c_device_probe+0x1ac/0x358
really_probe+0x148/0x2ac
__driver_probe_device+0x78/0xe0
driver_probe_device+0x3c/0x160
__device_attach_driver+0xb8/0x138
bus_for_each_drv+0x84/0xe0
__device_attach+0x9c/0x188
device_initial_probe+0x14/0x20
bus_probe_device+0xac/0xb0
deferred_probe_work_func+0x8c/0xc8
process_one_work+0x2bc/0x594
worker_thread+0x228/0x438
kthread+0x108/0x10c
ret_from_fork+0x10/0x20
irq event stamp: 299345
hardirqs last enabled at (299345): [<ffffc38bb9ba61e4>] put_cpu_partial+0x1c8/0x22c
hardirqs last disabled at (299344): [<ffffc38bb9ba61dc>] put_cpu_partial+0x1c0/0x22c
softirqs last enabled at (296752): [<ffffc38bb9890434>] _stext+0x434/0x4e8
softirqs last disabled at (296741): [<ffffc38bb989669c>] ____do_softirq+0x10/0x1c
---[ end trace 0000000000000000 ]---

Fixes: 4cd15a3e8b36 ("drm/msm/a6xx: Make GPU destroy a bit safer")
Cc: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Patchwork: https://patchwork.freedesktop.org/patch/531540/
Signed-off-by: Rob Clark <robdclark@chromium.org>

drm/msm/dp: enable HDP plugin/unplugged interrupts at hpd_enable/disable

The internal_hpd flag is set to true by dp_bridge_hpd_enable() and set to
false by dp_bridge_hpd_disable() to handle GPIO pinmuxed into DP controller
case. HDP related interrupts can not be enabled until internal_hpd is set
to true. At current implementation dp_display_config_hpd() will initialize
DP host controller first followed by enabling HDP related interrupts if
internal_hpd was true at that time. Enable HDP related interrupts depends on
internal_hpd status may leave system with DP driver host is in running state
but without HDP related interrupts being enabled. This will prevent external
display from being detected. Eliminated this dependency by moving HDP related
interrupts enable/disable be done at dp_bridge_hpd_enable/disable() directly
regardless of internal_hpd status.

Changes in V3:
-- dp_catalog_ctrl_hpd_enable() and dp_catalog_ctrl_hpd_disable()
-- rewording ocmmit text

Changes in V4:
-- replace dp_display_config_hpd() with dp_display_host_start()
-- move enable_irq() at dp_display_host_start();

Changes in V5:
-- replace dp_display_host_start() with dp_display_host_init()

Changes in V6:
-- squash remove enable_irq() and disable_irq()

Fixes: cd198caddea7 ("drm/msm/dp: Rely on hpd_enable/disable callbacks")
Signed-off-by: Kuogee Hsieh <quic_khsieh@quicinc.com>
Tested-by: Leonard Lausen <leonard@lausen.nl> # on sc7180 lazor
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Bjorn Andersson <andersson@kernel.org>
Tested-by: Bjorn Andersson <andersson@kernel.org>
Reviewed-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
Link: https://lore.kernel.org/r/1684878756-17830-1-git-send-email-quic_khsieh@quicinc.com
Signed-off-by: Rob Clark <robdclark@chromium.org>

accel/habanalabs: refactor error info reset

Moved error info reset code to single function for future use from
other places in the driver.

Signed-off-by: Dani Liberman <dliberman@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>

accel/habanalabs: add event queue extra validation

In order to increase reliability of the event queue interface,
we apply to Gaudi2 the same mechanism we have in Gaudi1.
The extra validation is basically checking that the received
event index matches the expected index.

Signed-off-by: Ofir Bitton <obitton@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>

accel/habanalabs: unsecure TSB_CFG_MTRR regs

In order to utilize Engine Barrier padding, user must have access to
this register set.

Signed-off-by: Ofir Bitton <obitton@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>

accel/habanalabs: move ioctl error print to debug level

We don't want to allow users to spam the kernel log and sending
ioctls with bad opcodes is a sure way to do it.

Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Reviewed-by: Ofir Bitton <obitton@habana.ai>

accel/habanalabs: fix bug of not fetching addr_dec info

addr_dec info should always be fetched, regardless of cause value.

Signed-off-by: Ofir Bitton <obitton@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>

accel/habanalabs: add description to several info ioctls

Several info ioctls may return success although no data retrieved.

Signed-off-by: Dani Liberman <dliberman@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>

accel/habanalabs: remove sim code

There were a few places where simulator only code got into the upstream.
Remove those places that can confuse other developers.

Fixes: 2a0a839b6a28 ("habanalabs: extend fatal messages to contain PCI info")
Cc: Moti Haimovski <mhaimovski@habana.ai>
Cc: Dan Carpenter <dan.carpenter@linaro.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>

accel/habanalabs: mask part of hmmu page fault captured address

When receiving page fault from hmmu, the captured address is scrambled
both by HW and by driver. The driver part is unscrambled but the HW
part isn't getting unscrambled.
To avoid declaring wrong address, the HW scrambled part will be
masked.

Signed-off-by: Dani Liberman <dliberman@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>

accel/habanalabs: update state when loading boot fit

Any FW component we load must be followed by a corresponding state
update. However, it seems that so far we skipped doing so for the
bootfit case, so fix that.

Signed-off-by: Koby Elbaz <kelbaz@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>

accel/habanalabs: print qman data on error only for lower qman

By default, the upper QMANs are not used, and instead engines ARCs
access the lower QMANs directly.
Errors for upper QMANs are therefore not expected, and the debug print
of the PQ entries is not needed.

Modify the QMAN debug data print on errors to include only information
for the lower QMAN.

Signed-off-by: Tomer Tayar <ttayar@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>

accel/habanalabs: use lower QM in QM errors handling

The QMAN GLBL_ERR_STS_4 register has indications for errors also in the
lower CQ and the ARC CQ, and not just for errors in the lower CP.
Modify the relevant define/struct and the related print to use "lower
QM" instead of "lower CP".

Signed-off-by: Tomer Tayar <ttayar@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>

accel/habanalabs: use binning info when handling razwi

When receiving sei interrupt from tpc or decoder, we need to check
the binning mask because if the engine is binned, the razwi info
won't be in the router of the binned engine, instead will be in the
router of the substitute engine.

Signed-off-by: Dani Liberman <dliberman@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>

accel/habanalabs: remove support for mmu disable

As mmu disable mode is only used for bring-up stages, let's remove this
option and all code related to it.

Signed-off-by: Ofir Bitton <obitton@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>

accel/habanalabs: upon DMA errors, use FW-extracted error cause

Initially, the driver used to read the error cause data directly from
the ASIC. However, the FW now clears it before the driver could read
it. Therefore we should use the error cause data that is extracted by
the FW.

Signed-off-by: Koby Elbaz <kelbaz@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>

accel/habanalabs: print max timeout value on CS stuck

If a workload got stuck, we print an error to the kernel log about it.
Add to that print the configured max timeout value, as that value is
not fixed between ASICs and in addition it can be configured using
a kernel module parameter.

Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Reviewed-by: Ofir Bitton <obitton@habana.ai>

accel/habanalabs: align to latest firmware specs

Update the firmware common interface files with the latest version.

Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Reviewed-by: Ofir Bitton <obitton@habana.ai>

accel/habanalabs: fix mem leak in capture user mappings

This commit fixes a memory leak caused when clearing the user_mappings
info when a new context is opened immediately after user_mapping is
captured and a hard reset is performed.

Signed-off-by: Moti Haimovski <mhaimovski@habana.ai>
Reviewed-by: Dani Liberman <dliberman@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>

accel/habanalabs: set unused bit as reserved

Get latest f/w gaudi2 interface file which marks unused
bist_need_iatu_config bit in cold_rst_data structure as reserved bit.

Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Reviewed-by: Ofir Bitton <obitton@habana.ai>

accel/habanalabs: rename security functions related arguments

Make the argument names specify the registers array represent
registers that should be unsecured so the user can access them.

Signed-off-by: Koby Elbaz <kelbaz@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>

accel/habanalabs: fix gaudi2_get_tpc_idle_status() return

The gaudi2_get_tpc_idle_status() function returned the incorrect variable
so it always returned true.

Fixes: d85f0531b928 ("accel/habanalabs: break is_idle function into per-engine sub-routines")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>

accel/habanalabs: Fix some kernel-doc comments

Make the description of @regs_range_array and @regs_range_array_size
to @user_regs_range_array and @user_regs_range_array_size to silence
the warnings:

drivers/accel/habanalabs/common/security.c:506: warning: Function parameter or member 'user_regs_range_array' not described in 'hl_init_pb_ranges_single_dcore'
drivers/accel/habanalabs/common/security.c:506: warning: Function parameter or member 'user_regs_range_array_size' not described in 'hl_init_pb_ranges_single_dcore'
drivers/accel/habanalabs/common/security.c:506: warning: Excess function parameter 'regs_range_array' description in 'hl_init_pb_ranges_single_dcore'
drivers/accel/habanalabs/common/security.c:506: warning: Excess function parameter 'regs_range_array_size' description in 'hl_init_pb_ranges_single_dcore'

Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Closes: https://bugzilla.openanolis.cn/show_bug.cgi?id=4940
Signed-off-by: Yang Li <yang.lee@linux.alibaba.com>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>

accel/habanalabs: always fetch pci addr_dec error info

Due to missing indication of address decode source (LBW/HBW bus),
we should always try and fetch extended information.

Signed-off-by: Ofir Bitton <obitton@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>

accel/habanalabs: fix a static warning - 'dubious: x & !y'

Use a straight forward approach to get a conditional result.

Signed-off-by: Koby Elbaz <kelbaz@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>

accel/habanalabs: poll for device status update following WFE cmd

Currently, we rely on COMMS protocol's ack to verify that WFE command
has been acknowledged by the FW. However, this does not guarantee that
the device status has been updated.
Although unlikely, this could trigger a race since the driver expects
the device to be halted at that stage, but it might not be.
Therefore, we increase WFE's robustness by polling on the status
register that will be updated once the device is actually halted.

Signed-off-by: Koby Elbaz <kelbaz@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>

accel/habanalabs: expose debugfs files later

Currently the debugfs root folder and files for a device are created at
an early step, before the device initialization and before the char
device and sysfs files are exposed to user.
As there is no real reason not to do it together with the device
creation, postpone it to be done right afterwards.

The initialization of the debugfs entry structure is left in its
current position because it is used before creating the files.

Signed-off-by: Tomer Tayar <ttayar@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>

accel/habanalabs: add pci health check during heartbeat

Currently upon a heartbeat failure, we don't know if the failure
is due to firmware hang or due to a bad PCI link. Hence, we
are reading a PCI config space register with a known value (vendor ID)
so we will know which of the two possibilities caused the heartbeat
failure.

Signed-off-by: Ofir Bitton <obitton@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>

accel/habanalabs: add missing tpc interrupt info

For some reason the last possible tpc interrupt cause in
gaudi2_tpc_interrupts_cause is missing from the code.

Signed-off-by: Dafna Hirschfeld <dhirschfeld@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>

accel/habanalabs: refactor abort of completions and waits

Aborting CS completions should be in command_submission.c but aborting
waiting for user interrupts should be in device.c.

This separation is also for adding more abort operations in the future.

Signed-off-by: Koby Elbaz <kelbaz@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>

accel/habanalabs: minimize encapsulation signal mutex lock time

Sync Stream Encapsulated Signal Handlers can be managed from different
contexts, and as such they are protected via a spin_lock.
However, spin_lock was unnecessarily protecting a larger code section
than really needed, covering a sleepable code section as well.
Since spin_lock disables preemption, it could lead to sleeping in
atomic context.

Signed-off-by: Koby Elbaz <kelbaz@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>

drm/i915/gsc: Fix error code in intel_gsc_uc_heci_cmd_submit_nonpriv()

This should return negative -EAGAIN instead of positive EAGAIN.

Fixes: e5e1e6d28ebc ("drm/i915/pxp: Add MTL helpers to submit Heci-Cmd-Packet to GSC")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Reviewed-by: Alan Previn <alan.previn.teres.alexis@intel.com>
Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com>
Signed-off-by: Andi Shyti <andi.shyti@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/ZH7sr+Vs4zOQoouU@moroto

drm/msm/dpu: tidy up some error checking

The "vsync_hz" variable is unsigned int so it can't be less
than zero.  The dpu_kms_get_clk_rate() function used to return a u64
but I previously changed it to return an unsigned long and zero on
error so it matches clk_get_rate().

Change the "vsync_hz" type to unsigned long as well and change the
error checking to check for zero instead of negatives.  This change
does not affect runtime at all.  It's just a clean up.

Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Reviewed-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
Reviewed-by: Marijn Suijten <marijn.suijten@somainline.org>
Patchwork: https://patchwork.freedesktop.org/patch/541225/
Link: https://lore.kernel.org/r/ZH7vP2Swu8CYpgUL@moroto
[DB: fixed debug message]
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

drm/msm/dpu: add DSC blocks to the catalog of MSM8998

MSM8998 doesn't have DSC blocks declared in the catalog. Complete DSC
1.1 support for all platforms by adding the missing blocks to MSM8998.

Changes in v9:
-- add MSM8998 and SC8180x to commit title

Changes in v10:
-- fix grammar at commit text

Changes in v12:
-- fix "titil" with "title" at changes in v9

Changes in v14:
-- "dsc" tp "DSC" at commit title

Changes in v15:
-- fix merge conflicts at dpu_5_1_sc8180x.h

Changes in v16
-- fix cherry-pick error by deleting both redundant .dsc and .dsc_count
assignment from dpu_5_1_sc8180x.h

Changes in v17
-- remove sc8180x from both commit title and text
-- remove Reviewed-by

Signed-off-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
Reviewed-by: Marijn Suijten <marijn.suijten@somainline.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/541371/
Link: https://lore.kernel.org/r/1686082272-22191-1-git-send-email-quic_khsieh@quicinc.com
[DB: fixed commit message as agreed in the email discussion]
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

drm/msm: mdss: Add SM6375 support

Add support for MDSS on SM6375.

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Marijn Suijten <marijn.suijten@somainline.org>
Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/541295/
Link: https://lore.kernel.org/r/20230411-topic-straitlagoon_mdss-v6-9-dee6a882571b@linaro.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

drm/msm: mdss: Add SM6350 support

Add support for MDSS on SM6350.

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Marijn Suijten <marijn.suijten@somainline.org>
Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/541291/
Link: https://lore.kernel.org/r/20230411-topic-straitlagoon_mdss-v6-7-dee6a882571b@linaro.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

drm/msm/dpu: Add SM6375 support

Add basic SM6375 support to the DPU1 driver to enable display output.

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Marijn Suijten <marijn.suijten@somainline.org>
Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/541293/
Link: https://lore.kernel.org/r/20230411-topic-straitlagoon_mdss-v6-8-dee6a882571b@linaro.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

drm/msm/dpu: Add SM6350 support

Add SM6350 support to the DPU1 driver to enable display output.

It's worth noting that one entry dpu_qos_lut_entry was trimmed off:

{.fl = 0, .lut = 0x0011223344556677 },

due to the lack of support for selecting between portrait and landscape
LUT settings (for danger and safe LUTs) and no full support for
qseed/non-qseed usescases (for QoS LUT).

Signed-off-by: Konrad Dybcio <konrad.dybcio@somainline.org>
Reviewed-by: Marijn Suijten <marijn.suijten@somainline.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/541287/
Link: https://lore.kernel.org/r/20230411-topic-straitlagoon_mdss-v6-6-dee6a882571b@linaro.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

dt-bindings: display/msm: Add SM6375 MDSS

Document the SM6375 MDSS.

Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/541289/
Link: https://lore.kernel.org/r/20230411-topic-straitlagoon_mdss-v6-5-dee6a882571b@linaro.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

dt-bindings: display/msm: Add SM6350 MDSS

Document the SM6350 MDSS.

Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/541286/
Link: https://lore.kernel.org/r/20230411-topic-straitlagoon_mdss-v6-4-dee6a882571b@linaro.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

dt-bindings: display/msm: sc7180-dpu: Describe SM6350 and SM6375

SC7180, SM6350 and SM6375 use a rather similar hw setup for DPU, with
the main exception being that the last one requires an additional
throttle clock.

It is not well understood yet, but failing to toggle it on makes the
display hardware stall and not output any frames.

Document SM6350 and SM6375 DPU.

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/541283/
Link: https://lore.kernel.org/r/20230411-topic-straitlagoon_mdss-v6-3-dee6a882571b@linaro.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>