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User may send null writeback configurations for writeback connector like:
- Only bind the writeback connector to crtc.
- set a fb_id(0) to writeback_fb_id_property
All above configurations are meaningless for writeback, but since they are
still valid configurations, accept them.
Depends on:
- https://patchwork.freedesktop.org/series/60856/
Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com>
Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com>
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Since the component_state->input[i] is only valid when it is active, the
content of input[i] is undefined if it is inactive. The user must check the
state->active_inputs with input index firstly before using state->input[i].
Refine the function to_d71_input_id and directly move such check into it.
Simplify the using and avoid problem that caller forget the valid check.
Depends on:
- https://patchwork.freedesktop.org/series/60856/
Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com>
Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com>
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One crtc can use two komeda_pipeline, and one works as master and as
slave. the slave pipeline doesn't have its own output and timing
ctrlr, but pre-composite the input layer data flow and then feed the
result to master. the pipeline configuration like:
slave-layer-0 \
... slave->CU
slave-layer-4 / \
\
master-layer-0 --------> master->CU -> ...
... /
master-layer-4 ------>
Since komeda Compiz doesn't output alpha, so the slave->CU result
only can be used as bottom input when blend it with master input data
flows.
Signed-off-by: Lowry Li (Arm Technology China) <lowry.li@arm.com>
Reviewed-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
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Komeda supports two types of layer split:
- none-scaling split
- scaling split
Since D71 merger only support scaler as input, so for none-scaling split,
the two layer dflow will be output to compiz directly. for scaling_split,
the data flow will be merged by merger firstly, then output the merged
data flow to compiz.
Komeda handles the split in kernel completely to hide the detailed and
complicated split calcualtion to user mode, for user only need to set the
layer_split property to enable/disable it.
v2: Rebase
Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
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To achieve same caling effect compare with none split, the texel
calculation need to use the same scaling ratio before split, so add
"total_xxx" to pipeline to describe the hsize/vsize before split.
Update pipeline and d71_scaler_update accordingly.
v2: Rebase and addressed Liviu's comments
Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
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Introduce a new component komeda_merger, because D71 HW supports to split
a whole image to two half parts and does the scaling independently. Merger
merges two separate results to one, and output it to compositor or wb_layer
For this patch:
- Add the definition of komeda_merger/merger_state
- Report and initialize komeda_merger according to the D71 HW.
v2: Rebase
Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
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To avoid confusion, unify the driver main engine clk name "mclk" to
the spec name "aclk".
Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
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Current komeda driver uses three dedicated clks for a specific purpose:
- mclk: main engine clock
- pclk: APB clock
- pipeline->aclk: AXI clock.
But per spec the komeda HW only has three input clks:
- ACLK: used for AXI masters, APB slave and most pipeline processing
- PXCLK for pipeline 0: output pixel clock for pipeline 0
- PXCLK for pipeline 1: output pixel clock for pipeline 1
So one ACLK is enough, no need to split it to three mclk/pclk/axiclk.
drop pclk/pipeline->axiclk. but only keep one mclk in komeda driver.
Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
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- Creates the zpos property.
- Implement komeda_crtc_normalize_zpos to replace
drm_atomic_normalize_zpos, reasons as the following:
1. The drm_atomic_normalize_zpos allows to configure same zpos for
different planes, but komeda doesn't support such configuration.
2. For further slave pipline case, Komeda need to calculate the
max_slave_zorder, we will merge such calculation into
komed_crtc_normalize_zpos to save a separated plane_state loop.
3. For feature none-scaling layer_split, which a plane_state will be
assigned to two individual layers(left/right), which requires two
normalize_zpos for this plane, plane_st->normalize_zpos will be used
by left layer, normalize_zpos + 1 for right_layer.
This patch series depends on:
- https://patchwork.freedesktop.org/series/58710/
- https://patchwork.freedesktop.org/series/59000/
- https://patchwork.freedesktop.org/series/59002/
- https://patchwork.freedesktop.org/series/59747/
- https://patchwork.freedesktop.org/series/59915/
- https://patchwork.freedesktop.org/series/60083/
- https://patchwork.freedesktop.org/series/60698/
Signed-off-by: Lowry Li (Arm Technology China) <lowry.li@arm.com>
Reviewed-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
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- Y0L2 and P010 are block (tiled) format, Update the kemeda logic to
compatible with such block format.
- Since DRM introduced a general block information to drm_format_info,
the format_caps->tiled_size no long needed, delete it.
- Build some fb utils functions for code sharing.
Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
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Add komeda_fb_check_src_coords and check if the layer configured src
rect can meet the requirement of fb and fb format.
Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
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Adds iommu_connect and disconnect for SMMU support, and configures
TBU translation once SMMU has been attached to the display device.
Signed-off-by: Lowry Li (Arm Technology China) <lowry.li@arm.com>
[fixed checking of error code returned by dp_wait_cond() and removed
extraneous DRM_ERROR() calls]
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
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Adds color-encoding properties if layer can support YUV format.
Updates HW YUV-RGB matrix state according to the color-encoding
properties.
Signed-off-by: Lowry Li (Arm Technology China) <lowry.li@arm.com>
Reviewed-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
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Updates HW up-sampling method according to the format type.
Signed-off-by: Lowry Li (Arm Technology China) <lowry.li@arm.com>
Reviewed-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
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Komeda series hardware doesn't support Rot90 for AFBC wide block. So
add limitation check to reject it if such configuration has been posted.
Signed-off-by: Lowry Li (Arm Technology China) <lowry.li@arm.com>
Reviewed-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
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- Adds rotation property to plane.
- Komeda display rotation support diverges from the specific formats,
so need to check the user required rotation type with the format caps
and reject the commit if it can not be supported.
- In the layer validate flow, sets the rotation value to the layer
state. If r90 or r270, swap the width and height of the data flow
for next stage.
Signed-off-by: Lowry Li (Arm Technology China) <lowry.li@arm.com>
Reviewed-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
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Besides clearing the input ID to zero, D71 compiz also has input
enable bit in CU_INPUTx_CONTROL which need to be cleared.
Signed-off-by: Lowry Li (Arm Technology China) <lowry.li@arm.com>
Reviewed-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
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dp_wait_cond() currently returns the number of retries left over which
is hardly an useful information. Convert to returning -ETIMEDOUT when
the wait times out, or 0 (zero) when condition is met before deadline.
Also convert the users of the function to return the error value.
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
Reviewed-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com>
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Creates plane alpha and blend mode properties attached to plane.
This patch depends on:
- https://patchwork.freedesktop.org/series/59915/
- https://patchwork.freedesktop.org/series/58665/
- https://patchwork.freedesktop.org/series/59000/
- https://patchwork.freedesktop.org/series/59002/
- https://patchwork.freedesktop.org/series/59471/
Changes since v1:
- Adds patch denpendency in the comment
Changes since v2:
- Remove [RFC] from the subject
Changes since v3:
- Rebase the code
Signed-off-by: Lowry Li (Arm Technology China) <lowry.li@arm.com>
Reviewed-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
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Besides scaling, Arm display scaler also can support image enhancement.
For support it, Add a new property "img_enhancement" to plane, then user
can turn on/off it by this property, and kernel follow user's requirement
to maitain the state and enable/disable the real HW image enhancement.
v2: Rebase and rename "needs_img_enhancement" to "en_img_enhancement"
Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
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For downscaling there is a restriction, the downscaling needed engine
clock can not acceed the real engine clock, and the clock requirement
mostly depend on the specific HW, to solve this problem:
1. Add a pipeline func - downscaling_clk_check for CORE to query the real
HW if downscaling can be supported.
2. Add new property clock ratio which is the ratio of:
(mclk << 32) / pxlclk
then User driver can use this ratio to do the clock check to avoid post
an invalid downscaling to kernel.
v2: Rebase and Delete debug print
Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
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1. Add scaler to writeback pipeline to enable the writeback scaling support
2. Display HW can not do upscaling for writeback, check it when validate.
v2: Rebase
Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
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1. Add scaler component and initialize it according to D71 HW.
2. Implement d71_scaler_update/disable/dump
v2:
- Correct a typo
- Constify component_funcs: d71_scaler_funcs
Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
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This patch add the initial and necessary logic for CORE to support scaler:
- Complete the struct komeda_scaler and komeda_scaler_state for adding
the scaler specific features and capablities.
- Implement komeda_scaler_validate to check the scaler with the data flow
configurations.
- Enable scaling support for plane input path (layer input data flow).
v2: Fix a typo, and rename "needs_scaling" to "en_scaling"
Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
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According to the komeda pipeline configuration, attach scaler to drm as
private object.
v2: Rebase
Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
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For supporting AFBC:
1. Check if the user requested modifier can be supported by display HW.
2. Check the obj->size with AFBC's requirement.
3. Configure HW according to the modifier (afbc features)
This patch depends on:
- https://patchwork.freedesktop.org/series/59915/
- https://patchwork.freedesktop.org/series/59000/
v2: Rebase and addressed Ayan's comments
Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
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Komeda driver uses a individual component to describe the HW's writeback
caps, but drivers doesn't define a new structure and still uses the
existing "struct komeda_layer" to describe this new component.
The detailed changes as follow:
1. Initialize wb_layer according to HW and report it to CORE.
2. CORE exposes wb_layer as a resource to KMS by private_obj.
3. Report writeback supporting by add a wb_connector to KMS, and then
wb_connector will take act as a component resources user,
so the func komeda_wb_encoder_atomic_check claims komeda resources
(scaler and wb_layer) accroding to its state configuration to the
wb_connector. and the wb_state configuration will be validated on the
specific component resources to see if the caps of component can
meet the requirement of wb_connector. if not check failed.
4. Update irq_handler to notify the completion of writeback.
NOTE:
This change doesn't add scaling writeback support, that support will
be added in the future after the scaler support.
v2: Rebase
v3: Rebase and constify the d71_wb_layer_funcs
v4: Addressed Ayan's comments
Depends on:
- https://patchwork.freedesktop.org/series/59915/
Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com>
Acked-by: Ayan Kumar Halder <ayan.halder@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
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We need to check whether drm_atomic_get_crtc_state() returns an error
pointer before dereferencing "crtc_st".
Fixes: 9e5603094176 ("drm/komeda: Add komeda_plane/plane_helper_funcs")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: "james qian wang (Arm Technology China)" <james.qian.wang@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
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Fixes gcc '-Wunused-but-set-variable' warning:
drivers/gpu/drm/arm/display/komeda/komeda_plane.c: In function komeda_plane_atomic_check:
drivers/gpu/drm/arm/display/komeda/komeda_plane.c:49:22: warning: variable kcrtc set but not used [-Wunused-but-set-variable]
It is never used since introduction in
commit 9e5603094176 ("drm/komeda: Add komeda_plane/plane_helper_funcs")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Reviewed-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
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Fixing the DMA mapping sg segment warning, which shows "DMA-API: mapping
sg segment longer than device claims to support [len=921600] [max=65536]".
Fixed by setting the max segment size at Komeda driver.
This patch depends on:
- https://patchwork.freedesktop.org/series/54448/
- https://patchwork.freedesktop.org/series/54449/
- https://patchwork.freedesktop.org/series/54450/
- https://patchwork.freedesktop.org/series/58976/
Changes since v1:
- Adds member description
- Adds patch denpendency in the comment
Signed-off-by: Lowry Li (Arm Technology China) <lowry.li@arm.com>
Reviewed-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com>
Reviewed-by: Ayan Kumar Halder <ayan.halder@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
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Depends on:
- https://patchwork.freedesktop.org/series/58976/
- https://patchwork.freedesktop.org/series/59855/
Reported-by: Emil Velikov <emil.l.velikov@gmail.com>
Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
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git://anongit.freedesktop.org/drm/drm-misc into drm-next
- A handful of fixes from -next that just missed feature freeze
- More panfrost fixes that went directly in -misc-next-fixes (various)
- Fix searchpaths during build (Masahiro)
- msm patch to fix the driver for chips without zap shader (Rob)
- Fix freeing imported buffers in drm_gem_cma_free_object() (Noralf)
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Cc: Rob Clark <robdclark@chromium.org>
Cc: Noralf Trønnes <noralf@tronnes.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Sean Paul <sean@poorly.run>
Link: https://patchwork.freedesktop.org/patch/msgid/20190508205153.GA91135@art_vandelay
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Fix the kbuild test rebot reported warnings:
- symbol was not declared. Should it be static?
- missing braces around initializer
Depends on:
- https://patchwork.freedesktop.org/series/58976/
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: james qian wang (Arm Technology China) <james.qian.wang@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
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Fixed the warnings: Function parameter or member 'xxx' not described
when make htmldocs
This patch depends on:
- https://patchwork.freedesktop.org/series/54448/
- https://patchwork.freedesktop.org/series/54449/
- https://patchwork.freedesktop.org/series/54450/
v2: Rebase and add reporter
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
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CHIP set bus_width according to the HW configuration, and CORE will use
it as buffer alignment.
v2: Rebase
Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
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Add two sysfs node: core_id, config_id, user can read them to fetch the
HW product information.
Also, use memset to initialize config_id, rather than quirky C syntax.
Courtesy of Nathan Chancellor <natechancellor@gmail.com>.
Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com>
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
[Merged Nathan's patch that uses memset to initialize config_id into
original patch as the fixes tag changed due to rebase, reworded the
commit to reference the merged patch]
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
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Implement komeda_kms_check to add all affected_planes (even unchanged) to
drm_atomic_state. since komeda need to re-calculate the resources
assumption in every commit.
v2: Rebase
Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
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Added functions:
- komeda_crtc_reset
- komeda_crtc_vblank_enable
- komeda_crtc_vblank_disable
Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
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Add a new komeda_dev_func->on_off_vblank to enable/disable HW vblank event
Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
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Pass enable/disable command to komeda and adjust komeda hardware for
enable/disable a display instance.
v2: Rebase
Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
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These two function will be used by komeda_crtc_enable/disable to do some
prepartion works when enable/disable a crtc. like enable a crtc:
1. Adjust display operation mode.
2. Enable/prepare needed clk.
v2: Rebase
Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
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komeda_crtc_mode_valid compares the input mode->clk with main engine clk
and AXI clk, and reject the mode if the required pixel clk can not be
satisfied by main engine clk and AXI-clk.
Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
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A komeda flush is comprised two steps:
1. update pipeline/component state to HW.
2. call dev_func->flush to notify HW to kickoff the update.
Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
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Komeda driver treats KMS-CRTC/PLANE as user which will acquire pipeline
resources, but we still need to release the unclaimed resources.
crtc_atomic_check is the final check stage, so beside build a display data
pipeline according the crtc_state, but still needs to release/disable the
unclaimed pipeline resources.
v2: Rebase
Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
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This function builds a display output pipeline according to crtc_state.
And this change only added single pipeline support, the dual pipeline with
slave enabled data flow support will be added in the following change.
v2: Rebase
Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
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Per komeda design KMS-plane maps to komeda layer input pipeline.
komeda_plane_atomic_check is for building a komeda layer input pipeline.
And KMS-plane is only a user of komeda resources. so there is no real HW
update for plane, but all HW update will be handled in crtc->flush.
v2: Rebase
Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
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build_layer_data_flow builds a input pipeline according to plane_state.
and in this initial stage only added this simplest pipeline usage:
Layer -> compiz
The scaler and layer_split will be added in the future.
v2:
- Rebase.
- Introduce struct komeda_data_flow_cfg
- Add a function komeda_component_validate_private to replace the MACRO
component_validate_private
Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
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Initialize koemda_layer, komeda_compiz, komeda_improc and
komeda_timing_ctrlr as drm private object, then track komeda private
component state by drm_atomic_state.
v2:
- Update code after Applied commit:
b962a12050a3 ("drm/atomic: integrate modeset lock with private objects")
Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
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get_state_and_set_user packed get_state and set_user into one function,
which get pipeline/component state for a specific pipeline/component, if
success set the user to it.
v2:
- Rebase.
- Applied commit:
b962a12050a3 ("drm/atomic: integrate modeset lock with private objects")
And delete our private modeset lock for pipeline.
Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
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Currently, the Kbuild core manipulates header search paths in a crazy
way [1].
To fix this mess, I want all Makefiles to add explicit $(srctree)/ to
the search paths in the srctree. Some Makefiles are already written in
that way, but not all. The goal of this work is to make the notation
consistent, and finally get rid of the gross hacks.
Having whitespaces after -I does not matter since commit 48f6e3cf5bc6
("kbuild: do not drop -I without parameter").
[1]: https://patchwork.kernel.org/patch/9632347/
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Reviewed-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com>
Acked-by: Liviu Dudau <liviu.dudau@arm.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/1553859161-2628-1-git-send-email-yamada.masahiro@socionext.com
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