Backport more recent driver for Skylake and Cherryview graphics hardware

Bug #1420774 reported by Timo Aaltonen on 2015-02-11
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
linux (Ubuntu)
High
Timo Aaltonen

Bug Description

We need to support Skylake (SKL) and Cherryview (CHV) graphics in vivid, but the kernel driver is not fresh enough for proper support.

For the kernel the plan is to provide a separate driver module (i915_bpo) like for Haswell in quantal and Broadwell in trusty. The i915 driver in 3.19 is buggy and lacking features for SKL/CHV, so pulling the driver from current drm-intel-next branch would provide what'll end up in 4.1. The i915 drivers will be modified so that only i915_bpo loads on SKL machines, and only there. The driver will get further updates along the way, and possibly also rebased to a later kernel release.

Timo Aaltonen (tjaalton) on 2015-02-11
Changed in linux (Ubuntu):
assignee: nobody → Timo Aaltonen (tjaalton)
importance: Undecided → High
status: New → In Progress
Timo Aaltonen (tjaalton) on 2015-03-17
summary: - Backport more recent driver for Skylake graphics hardware
+ Backport more recent driver for Skylake and Cherryview graphics hardware
description: updated
Andy Whitcroft (apw) on 2015-04-01
Changed in linux (Ubuntu):
status: In Progress → Fix Committed
Launchpad Janitor (janitor) wrote :
Download full text (6.8 KiB)

This bug was fixed in the package linux - 3.19.0-12.12

---------------
linux (3.19.0-12.12) vivid; urgency=low

  [ Andy Whitcroft ]

  * [Packaging] do_common_tools should always be on
  * [Packaging] Provides: virtualbox-guest-modules when appropriate
    - LP: #1434579

  [ Chris J Arges ]

  * Revert "SAUCE: ext4: disable ext4_punch_hole for indirect filesystems"
    - LP: #1292234

  [ Leann Ogasawara ]

  * Release Tracking Bug
    - LP: #1439803

  [ Timo Aaltonen ]

  * SAUCE: i915_bpo: Provide a backport driver for Skylake & Cherryview
    graphics
    - LP: #1420774
  * SAUCE: i915_bpo: Update intel_ips.h file location
    - LP: #1420774
  * SAUCE: i915_bpo: Only support Skylake and Cherryview with the backport
    driver
    - LP: #1420774
  * SAUCE: i915_bpo: Rename the backport driver to i915_bpo
    - LP: #1420774
  * i915_bpo: [Config] Enable CONFIG_DRM_I915_BPO=m
    - LP: #1420774
  * SAUCE: i915_bpo: Add i915_bpo_*() calls for ubuntu/i915
    - LP: #1420774
  * SAUCE: i915_bpo: Revert "drm/i915: remove unused
    power_well/get_cdclk_freq api"
    - LP: #1420774
  * SAUCE: i915_bpo: Add i915_bpo specific power well calls
    - LP: #1420774
  * SAUCE: Backport I915_PARAM_MMAP_VERSION and I915_MMAP_WC
    - LP: #1420774
  * SAUCE: Partial backport of drm/i915: Add ioctl to set per-context
    parameters
    - LP: #1420774
  * SAUCE: drm/i915: Specify bsd rings through exec flag
    - LP: #1420774
  * SAUCE: drm/i915: add I915_PARAM_HAS_BSD2 to i915_getparam
    - LP: #1420774
  * SAUCE: drm/i915: add component support
    - LP: #1420774
  * SAUCE: drm/i915: Add tiled framebuffer modifiers
    - LP: #1420774
  * SAUCE: Backport new displayable tiling formats
    - LP: #1420774
  * SAUCE: Backport drm_crtc_vblank_reset() helper
    - LP: #1420774
  * SAUCE: drm/i915: Add I915_PARAM_REVISION
    - LP: #1420774
  * SAUCE: drm/i915: Export total subslice and EU counts
    - LP: #1420774
  * SAUCE: i915_bpo: Revert drm/mm: Support 4 GiB and larger ranges
    - LP: #1420774

  [ Upstream Kernel Changes ]

  * drm/i915/skl: Split the SKL PCI ids by GT
    - LP: #1420774
  * drm: Reorganize probed mode validation
    - LP: #1420774
  * drm: Perform basic sanity checks on probed modes
    - LP: #1420774
  * drm: Do basic sanity checks for user modes
    - LP: #1420774
  * drm/atomic-helper: Export both plane and modeset check helpers
    - LP: #1420774
  * drm/atomic-helper: Again check modeset *before* plane states
    - LP: #1420774
  * drm/atomic: Introduce state->obj backpointers
    - LP: #1420774
  * drm: allow property validation for refcnted props
    - LP: #1420774
  * drm: store property instead of id in obj attachment
    - LP: #1420774
  * drm: get rid of direct property value access
    - LP: #1420774
  * drm: add atomic_set_property wrappers
    - LP: #1420774
  * drm: tweak getconnector locking
    - LP: #1420774
  * drm: add atomic_get_property
    - LP: #1420774
  * drm: Remove unneeded braces for single statement blocks
    - LP: #1420774
  * drm: refactor getproperties/getconnector
    - LP: #1420774
  * drm: add atomic properties
    - LP: #1420774
  * drm/atomic: atomic_check functions
    - LP: #1420774
  * drm: s...

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Changed in linux (Ubuntu):
status: Fix Committed → Fix Released
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