linux-xiaomi-chiron/drivers
Lionel Landwerlin b8ec759e6f drm/i915/hsw: add missing disabled EUs registers reads
It turns out that HSW has a register that tells us how many EUs are
disabled per half-slice (roughly a similar notion to subslice). We
didn't read those registers so far as most userspace drivers didn't
need those values prior to Gen8, but an internal library would like to
have access to this.

Since we already have the getparam interface, there is no harm in
exposing this.

v2: Rename bits value (Joonas)

v3: s/GEM_BUG_ON/MISSING_CASE/ (Joonas)

v4: s/GEM_BUG_ON/MISSING_CASE/ again... (Lionel)

Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180221204902.23084-1-lionel.g.landwerlin@intel.com
2018-02-22 13:58:01 +00:00
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gpu drm/i915/hsw: add missing disabled EUs registers reads 2018-02-22 13:58:01 +00:00
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