Initialize and enable output polling on Komeda.
Changes since v1:
1. Enable the polling before registering the driver;
2. Disable the polling after unregistering the driver.
Changes since v2:
1. If driver register failed, disable the polling.
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: james qian wang (Arm Technology China) <james.qian.wang@arm.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1564733249-24329-1-git-send-email-lowry.li@arm.com
Komeda interrupts may be shared with other hardware blocks.
One needs to use devm_request_irq() with IRQF_SHARED to create a shared
interrupt handler.
As a result of not using drm_irq_install() api, one needs to set
"(struct drm_device *)->irq_enabled = true/false" to enable/disable
vblank interrupts.
Changes from v1:-
1. Squashed the following two patches into one (as the second patch is a
consequence of the first one):-
drm/komeda: Avoid using DRIVER_IRQ_SHARED
drm/komeda: Enable/Disable vblank interrupts
2. Fixed the commit message (as pointed by Daniel Vetter)
3. Removed calls to 'drm_irq_uninstall()' as we are no longer using
drm_irq_install()
4. Removed the struct member 'komeda_kms_driver.irq_handler' as it is not
used anywhere.
Signed-off-by: Ayan Halder <ayan.halder@arm.com>
Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com>
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>
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>
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>
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>
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>
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>
Initialize koemda_layer, komeda_compiz, komeda_improc and
komeda_timing_ctrlr as drm private object, then track komeda private
component state by drm_atomic_state.
v2:
- Update code after Applied commit:
b962a12050 ("drm/atomic: integrate modeset lock with private objects")
Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
1. Added irq_handler/irq_enable/irq_disable to komeda_dev_func, then the
Komeda-CORE can control the HW irq via these chip function.
2. Install irq and register irq_handler to system by DRM, so once the IRQ
coming, the handling sequence is:
komeda_kms_irq_handler(int irq, void *data)
/* step 1. call into the CHIP to recognize event */
mdev->funcs->irq_handler(mdev, &evts);
/* step 2. notify the crtc to handle the events */
for (i = 0; i < kms->n_crtcs; i++)
komeda_crtc_handle_event(&kms->crtcs[i], &evts);
v2:
- Move get IRQ number into this change.
- Enable irq before drm_dev_register.
Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
With drmP.h removed from drm_modeset_helper.h the build of
komeda filed as reported by linux-next
Add missing include files to fix build.
For the files touched group include files and sort them.
The fix was tested on a tree with drm-misc-next merged.
And the patch was also tested to work without drm-misc-next merged.
Build tested on arm + x86.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> [linux-next]
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: James Wang <james.qian.wang@arm.com>
Cc: Liviu Dudau <liviu.dudau@arm.com>
Cc: Brian Starkey <brian.starkey@arm.com>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190208221324.27002-1-sam@ravnborg.org
The initial series is only introducing the basic components and not
implementing IRQ handling. Remove the left over code that touches
IRQs until the proper implementation is introduced in a later series.
Reviewed-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
Add komeda_kms abstracton to attach komeda_dev to DRM-KMS
CRTC: according to the komeda_pipeline
PLANE: according to komeda_layer (layer input pipeline)
PRIVATE_OBJS: komeda_pipeline/component all will be treat as private_objs
komeda_kms is for connecting DRM-KMS and komeda_dev, like reporting the
kms object properties according to the komeda_dev, and pass/convert KMS's
requirement to komeda_dev.
Changes in v4:
- Set drm_atomic_helper_check as mode_config->atomic_check.
Changes in v3:
- Fixed style problem found by checkpatch.pl --strict.
Changes in v2:
- Unified abbreviation of "pipeline" to "pipe".
Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com>
Reviewed-by: Liviu Dudau <liviu.dudau@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
Lowry Li (Arm Technology China)