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| author | Mika Kuoppala <mika.kuoppala@linux.intel.com> | 2019-10-15 18:44:44 +0300 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2019-10-15 18:20:19 +0100 |
| commit | 65df78bda385a905d086a787fd186506aea87df4 (patch) | |
| tree | daa030676076c463188d5e513fbf70cf02ee28b5 /drivers/gpu/drm/i915/gt | |
| parent | 99739f9431f9fa8b4706dfa4c99389b400b8af23 (diff) | |
| download | linux-65df78bda385a905d086a787fd186506aea87df4.tar.bz2 | |
drm/i915/tgl: Wa_1409420604
Avoid possible hang in CPSS unit.
Signed-off-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20191015154449.10338-6-mika.kuoppala@linux.intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/gt')
| -rw-r--r-- | drivers/gpu/drm/i915/gt/intel_workarounds.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/gt/intel_workarounds.c b/drivers/gpu/drm/i915/gt/intel_workarounds.c index bc5fdb4e47b1..7fea61b00b99 100644 --- a/drivers/gpu/drm/i915/gt/intel_workarounds.c +++ b/drivers/gpu/drm/i915/gt/intel_workarounds.c @@ -902,6 +902,11 @@ icl_gt_workarounds_init(struct drm_i915_private *i915, struct i915_wa_list *wal) static void tgl_gt_workarounds_init(struct drm_i915_private *i915, struct i915_wa_list *wal) { + /* Wa_1409420604:tgl */ + if (IS_TGL_REVID(i915, TGL_REVID_A0, TGL_REVID_A0)) + wa_write_or(wal, + SUBSLICE_UNIT_LEVEL_CLKGATE2, + CPSSUNIT_CLKGATE_DIS); } static void |