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| author | Oscar Mateo <oscar.mateo@intel.com> | 2018-05-08 14:29:35 -0700 |
|---|---|---|
| committer | Mika Kuoppala <mika.kuoppala@linux.intel.com> | 2018-05-11 15:58:16 +0300 |
| commit | 73f4e8a338da114ec9e0b8c634a02fd85d4fa396 (patch) | |
| tree | b007ff3cf070bd5cbe1db6b8af1170f67e07dd8e /drivers/gpu/drm/i915/intel_workarounds.c | |
| parent | 5ba700c73a89b0bace1a89a08e7a7eca5f011152 (diff) | |
| download | blackbird-obmc-linux-73f4e8a338da114ec9e0b8c634a02fd85d4fa396.tar.gz blackbird-obmc-linux-73f4e8a338da114ec9e0b8c634a02fd85d4fa396.zip | |
drm/i915/icl: WaForwardProgressSoftReset
Avoids a hang during soft reset.
v2: Rebased on top of the WA refactoring
v3: Added References (Mika)
v4:
- Rebased
- C, not lisp (Chris)
- Which steppings affected by this are not clear.
For the moment, apply unconditionally as per the
BSpec (Mika)
- Add reference to another HSD also related
References: HSDES#1405476379
References: HSDES#2006612137
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Signed-off-by: Oscar Mateo <oscar.mateo@intel.com>
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Signed-off-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1525814984-20039-14-git-send-email-oscar.mateo@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/intel_workarounds.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_workarounds.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_workarounds.c b/drivers/gpu/drm/i915/intel_workarounds.c index 942d32256c53..5eec4ce965a5 100644 --- a/drivers/gpu/drm/i915/intel_workarounds.c +++ b/drivers/gpu/drm/i915/intel_workarounds.c @@ -761,6 +761,13 @@ static void icl_gt_workarounds_apply(struct drm_i915_private *dev_priv) I915_WRITE(INF_UNIT_LEVEL_CLKGATE, I915_READ(INF_UNIT_LEVEL_CLKGATE) | CGPSF_CLKGATE_DIS); + + /* WaForwardProgressSoftReset:icl */ + I915_WRITE(GEN10_SCRATCH_LNCF2, + I915_READ(GEN10_SCRATCH_LNCF2) | + PMFLUSHDONE_LNICRSDROP | + PMFLUSH_GAPL3UNBLOCK | + PMFLUSHDONE_LNEBLK); } void intel_gt_workarounds_apply(struct drm_i915_private *dev_priv) |
