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  1. 21 5月, 2015 2 次提交
    • C
      drm/i915: Limit ring synchronisation (sw sempahores) RPS boosts · a6f766f3
      由 Chris Wilson 提交于 
      Ring switches can occur many times per frame, and are often out of
control, causing frequent RPS boosting for no practical benefit. Treat
the sw semaphore synchronisation as a separate client and only allow it
to boost once per busy/idle cycle.
Signed-off-by: NChris Wilson <chris@chris-wilson.co.uk>
[danvet: s/rq/req/]
Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>
      a6f766f3
    • D
      drm/i915: s/\<rq\>/req/g · eed29a5b
      由 Daniel Vetter 提交于 
      The merged seqno->request conversion from John called request
variables req, but some (not all) of Chris' recent patches changed
those to just rq. We've had a lenghty (and inconclusive) discussion on
irc which is the more meaningful name with maybe at most a slight bias
towards req.

Given that the "don't change names without good reason to avoid
conflicts" rule applies, so lets go back to a req everywhere for
consistency. I'll sed any patches for which this will cause conflicts
before applying.

Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: John Harrison <John.C.Harrison@Intel.com>
[danvet: s/origina/merged/ as pointed out by Chris - the first
mass-conversion patch was from Chris, the merged one from John.]
Signed-off-by: NDaniel Vetter <daniel.vetter@intel.com>
      eed29a5b
  3. 20 5月, 2015 5 次提交
  5. 08 5月, 2015 3 次提交
  7. 16 4月, 2015 1 次提交
  9. 14 4月, 2015 4 次提交
  11. 13 4月, 2015 1 次提交
  13. 10 4月, 2015 7 次提交
  15. 09 4月, 2015 1 次提交
  17. 31 3月, 2015 1 次提交
  19. 26 3月, 2015 1 次提交
  21. 23 3月, 2015 1 次提交
  23. 20 3月, 2015 3 次提交
    • C
      drm/i915: Use down ei for manual Baytrail RPS calculations · 6f4b12f8
      由 Chris Wilson 提交于 
      Use both up/down manual ei calcuations for symmetry and greater
flexibility for reclocking, instead of faking the down interrupt based
on a fixed integer number of up interrupts.
Signed-off-by: NChris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Deepak S<deepak.s@linux.intel.com>
Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>
      6f4b12f8
    • C
      drm/i915: Improved w/a for rps on Baytrail · 43cf3bf0
      由 Chris Wilson 提交于 
      Rewrite commit 31685c25
Author: Deepak S <deepak.s@linux.intel.com>
Date:   Thu Jul 3 17:33:01 2014 -0400

    drm/i915/vlv: WA for Turbo and RC6 to work together.

Other than code clarity, the major improvement is to disable the extra
interrupts generated when idle.  However, the reclocking remains rather
slow under the new manual regime, in particular it fails to downclock as
quickly as desired. The second major improvement is that for certain
workloads, like games, we need to combine render+media activity counters
as the work of displaying the frame is split across the engines and both
need to be taken into account when deciding the global GPU frequency as
memory cycles are shared.
Signed-off-by: NChris Wilson <chris@chris-wilson.co.uk>
Cc: Deepak S <deepak.s@linux.intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Deepak S<deepak.s@linux.intel.com>
Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>
      43cf3bf0
    • C
      drm/i915: Relax RPS contraints to allows setting minfreq on idle · aed242ff
      由 Chris Wilson 提交于 
      When we idle, we set the GPU frequency to the hardware minimum (not user
minimum). We introduce a new variable to distinguish between the
different roles, and to allow easy tuning of the idle frequency without
impacting over aspects of RPS. Setting the minimum frequency should be a
safety blanket as the pcu on the GPU should be power gating itself
anyway. However, in order for us to do set the absolute minimum
frequency, we need to relax a few of our assertions that we do not
exceed the user limits.

v2: Add idle_freq
v3: Init idle_freq for vlv and add a bunch of WARNs
Signed-off-by: NChris Wilson <chris@chris-wilson.co.uk>
Cc: Deepak S <deepak.s@linux.intel.com>
Reviewed-by: Deepak S<deepak.s@linux.intel.com>
Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>
      aed242ff
  25. 18 3月, 2015 10 次提交