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| author | Mika Kuoppala <mika.kuoppala@linux.intel.com> | 2016-06-07 17:18:59 +0300 |
|---|---|---|
| committer | Mika Kuoppala <mika.kuoppala@intel.com> | 2016-06-08 16:21:39 +0300 |
| commit | e587f6cb0af140f3c0ea794d8616eb9a29969983 (patch) | |
| tree | 0243769fcd653c3de88e2c775ffc32f59a4d2581 | |
| parent | bbaefe72a00c93c6ec12e029019681e3f7d7de7a (diff) | |
| download | linux-e587f6cb0af140f3c0ea794d8616eb9a29969983.tar.xz | |
drm/i915/kbl: Add WaEnableGapsTsvCreditFix
We need this crucial workaround from skl also to all kbl revisions.
Lack of it was causing system hangs on skl enabling so this is
a must have.
v2: Don't add revid checks to gen9 init workarounds (Arun)
References: HSD#2126660
Cc: Arun Siluvery <arun.siluvery@linux.intel.com>
Signed-off-by: Mika Kuoppala <mika.kuoppala@intel.com>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1465309159-30531-8-git-send-email-mika.kuoppala@intel.com
| -rw-r--r-- | drivers/gpu/drm/i915/intel_ringbuffer.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c index 228c3f75d3c5..02edf85f7456 100644 --- a/drivers/gpu/drm/i915/intel_ringbuffer.c +++ b/drivers/gpu/drm/i915/intel_ringbuffer.c @@ -1188,12 +1188,17 @@ static int bxt_init_workarounds(struct intel_engine_cs *engine) static int kbl_init_workarounds(struct intel_engine_cs *engine) { + struct drm_i915_private *dev_priv = engine->i915; int ret; ret = gen9_init_workarounds(engine); if (ret) return ret; + /* WaEnableGapsTsvCreditFix:kbl */ + I915_WRITE(GEN8_GARBCNTL, (I915_READ(GEN8_GARBCNTL) | + GEN9_GAPS_TSV_CREDIT_DISABLE)); + return 0; } |