drm/i915/tgl: Add Wa_22010178259:tgl

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We need to explicitly set the TLB Request Timer initial value in the
BW_BUDDY registers to 0x8 rather than relying on the hardware default.

v2: Apply missing REG_FIELD_PREP to ensure 0x8 is placed in the correct
    bits during the rmw.  (Jose)

Bspec: 52890
Bspec: 50044
Fixes: 3fa01d642f ("drm/i915/tgl: Program BW_BUDDY registers during display init")
Cc: Stanislav Lisovskiy <stanislav.lisovskiy@intel.com>
Cc: José Roberto de Souza <jose.souza@intel.com>
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200219215655.2923650-1-matthew.d.roper@intel.com
Reviewed-by: José Roberto de Souza <jose.souza@intel.com>

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This commit is contained in:

Matt Roper 2020-02-19 13:56:55 -08:00

parent 00de702c6c

commit 87e04f7592

2 changed files with 9 additions and 0 deletions

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8

drivers/gpu/drm/i915/display/intel_display_power.c

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1

drivers/gpu/drm/i915/i915_reg.h

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