Jessica Zhang 2ea3468226 drm/msm/dpu: Add CWB to msm_display_topology
Currently, the topology is calculated based on the assumption that the
user cannot request real-time and writeback simultaneously. For example,
the number of LMs and CTLs are currently based off the number of phys
encoders under the assumption there will be at least 1 LM/CTL per phys
encoder.

This will not hold true for concurrent writeback as both phys encoders
(1 real-time and 1 writeback) must be driven by 1 LM/CTL when concurrent
writeback is enabled.

To account for this, add a cwb_enabled flag and only adjust the number of
CTL/LMs needed by a given topology based on the number of phys encoders
only if CWB is not enabled.

Reviewed-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Jessica Zhang <quic_jesszhan@quicinc.com>
Patchwork: https://patchwork.freedesktop.org/patch/637486/
Link: https://lore.kernel.org/r/20250214-concurrent-wb-v6-4-a44c293cf422@quicinc.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
2025-03-05 04:34:12 +02:00
2025-02-25 17:36:09 +10:00
2024-09-01 20:43:24 -07:00
2025-02-25 17:36:09 +10:00
2025-02-04 11:27:45 -05:00
2025-02-25 11:43:10 +01:00
2022-09-28 09:02:20 +02:00
2025-02-23 12:32:57 -08:00
2024-03-18 03:36:32 -06:00

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.
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