mainlining shenanigans
b3de1d0789
All DPT FB color plane surface base addresses must be 2MB aligned. On ADL_P this means that the offsets in CCS FB object must be also 2MB aligned. Adjusting unaligned offsets for these FBs during commit time (compensating with the x/y offsets) doesn't work, since the big alignment would most probably lead to an x/y offset mismatch error between the main and CCS planes. We can overcome this limitation by remapping CCS FBs, so that each color plane is at an aligned offset, leaving x/y for each plane unadjusted during commit and so not causing an x/y mismatch error. However remapping for CCS FBs will be done as a follow-up, so for now require that user space allocates the FB obj with properly aligned planes. v2: s/SZ_2M/512*4k/ for clarity. (Ville) Signed-off-by: Imre Deak <imre.deak@intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210524172703.2113058-1-imre.deak@intel.com |
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| arch | ||
| block | ||
| certs | ||
| crypto | ||
| Documentation | ||
| drivers | ||
| fs | ||
| include | ||
| init | ||
| ipc | ||
| kernel | ||
| lib | ||
| LICENSES | ||
| mm | ||
| net | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | ||
| .cocciconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| COPYING | ||
| CREDITS | ||
| Kbuild | ||
| Kconfig | ||
| MAINTAINERS | ||
| Makefile | ||
| README | ||
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 Restructured Text 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.