a1fb548962
Driver Changes: - Fix GitLab #1698: Performance regression with Linux 5.7-rc1 on Iris Plus 655 and 4K screen (Chris) - Add Wa_14011059788 for Tigerlake (Matt A) - Add per ctx batchbuffer wa for timestamp for Gen12 (Mika) - Use indirect ctx bb to load cmd buffer control value from context image to avoid corruption (Mika) - Enable DP Display Audio WA (Uma, Jani) - Update forcewake firmware ranges for Icelake (Radhakrishna) - Add missing deinitialization cases of load failure for display (Jose) - Implement TC cold sequences for Icelake and Tigerlake (Jose) - Unbreak enable_dpcd_backlight modparam (Lyude) - Move the late flush_submission in retire to the end (Chris) - Demote "Reducing compressed framebufer size" message to info (Peter) - Push MST link retraining to the hotplug work (Ville) - Hold obj->vma.lock over for_each_ggtt_vma() (Chris) - Fix timeout handling during TypeC AUX power well enabling for ICL (Imre) - Fix skl+ non-scaled pfit modes (Ville) - Prefer soft-rc6 over RPS DOWN_TIMEOUT (Chris) - Sanitize GT first before poisoning HWSP (Chris) - Fix up clock RPS frequency readout (Chris) - Avoid reusing the same logical CCID (Chris) - Avoid dereferencing a dead context (Chris) - Always enable busy-stats for execlists (Chris) - Apply the aggressive downclocking to parking (Chris) - Restore aggressive post-boost downclocking (Chris) - Scrub execlists state on resume (Chris) - Add debugfs attributes for LPSP (Ansuman) - Improvements to kernel selftests (Chris, Mika) - Add tiled blits selftest (Zbigniew) - Fix error handling in __live_lrc_indirect_ctx_bb() (Dan) - Add pre/post plane updates for SAGV (Stanislav) - Add ICL PG3 PW ID for EHL (Anshuman) - Fix Sphinx build duplicate label warning (Jani) - Error log non-zero audio power refcount after unbind (Jani) - Remove object_is_locked assertion from unpin_from_display_plane (Chris) - Use single set of AUX powerwell ops for gen11+ (Matt R) - Prefer drm_WARN_ON over WARN_ON (Pankaj) - Poison residual state [HWSP] across resume (Chris, Tvrtko) - Convert request-before-CS assertion to debug (Chris) - Carefully order virtual_submission_tasklet (Chris) - Check carefully for an idle engine in wait-for-idle (Chris) - Only close vma we open (Chris) - Trace RPS events (Chris) - Use the RPM config register to determine clk frequencies (Chris) - Drop rq->ring->vma peeking from error capture (Chris) - Check preempt-timeout target before submit_ports (Chris) - Check HWSP cacheline is valid before acquiring (Chris) - Use proper fault mask in interrupt postinstall too (Matt R) - Keep a no-frills swappable copy of the default context state (Chris) - Add atomic helpers for bandwidth (Stanislav) - Refactor setting dma info to a common helper from device info (Michael) - Refactor DDI transcoder code for clairty (Ville) - Extend PG3 power well ID to ICL (Anshuman) - Refactor PFIT code for readability and future extensibility (Ville) - Clarify code split between intel_ddi.c and intel_dp.c (Ville) - Move out code to return the digital_port of the aux ch (Jose) - Move rps.enabled/active and use of RPS interrupts to flags (Chris) - Remove superfluous inlines and dead code (Jani) - Re-disable -Wframe-address from top-level Makefile (Nick) - Static checker and spelling fixes (Colin, Nathan) - Split long lines (Ville) Signed-off-by: Dave Airlie <airlied@redhat.com> From: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200430124904.GA100924@jlahtine-desk.ger.corp.intel.com
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.