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drm/i915/tgl: Introduce initial Tiger Lake workarounds

Browse source 
Add empty workaround hooks for Tiger Lake. The workarounds will be added
on separate patches. We were already applying
WaRsForcewakeAddDelayForAck, which is indeed still valid, so also update
the comment.

Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Reviewed-by: Radhakrishna Sripada <radhakrishna.sripada@intel.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20190817093902.2171-21-lucas.demarchi@intel.com
This commit is contained in:
Lucas De Marchi 2019-08-17 02:38:42 -07:00 committed by Chris Wilson
parent f4785682c9
commit 13e53c5c53
3 changed files with 27 additions and 4 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

1
drivers/gpu/drm/i915/gt/intel_lrc.c
View file

@ -2225,6 +2225,7 @@ static int intel_init_workaround_bb(struct intel_engine_cs *engine)
return 0;
switch (INTEL_GEN(engine->i915)) {
case 12:
case 11:
return 0;
case 10:

26
drivers/gpu/drm/i915/gt/intel_workarounds.c
View file

@ -569,6 +569,11 @@ static void icl_ctx_workarounds_init(struct intel_engine_cs *engine,
GEN11_SAMPLER_ENABLE_HEADLESS_MSG);
}
static void tgl_ctx_workarounds_init(struct intel_engine_cs *engine,
struct i915_wa_list *wal)
{
}
static void
__intel_engine_init_ctx_wa(struct intel_engine_cs *engine,
struct i915_wa_list *wal,
@ -581,7 +586,9 @@ __intel_engine_init_ctx_wa(struct intel_engine_cs *engine,
wa_init_start(wal, name, engine->name);
if (IS_GEN(i915, 11))
if (IS_GEN(i915, 12))
tgl_ctx_workarounds_init(engine, wal);
else if (IS_GEN(i915, 11))
icl_ctx_workarounds_init(engine, wal);
else if (IS_CANNONLAKE(i915))
cnl_ctx_workarounds_init(engine, wal);
@ -890,10 +897,17 @@ icl_gt_workarounds_init(struct drm_i915_private *i915, struct i915_wa_list *wal)
GAMT_CHKN_DISABLE_L3_COH_PIPE);
}
static void
tgl_gt_workarounds_init(struct drm_i915_private *i915, struct i915_wa_list *wal)
{
}
static void
gt_init_workarounds(struct drm_i915_private *i915, struct i915_wa_list *wal)
{
if (IS_GEN(i915, 11))
if (IS_GEN(i915, 12))
tgl_gt_workarounds_init(i915, wal);
else if (IS_GEN(i915, 11))
icl_gt_workarounds_init(i915, wal);
else if (IS_CANNONLAKE(i915))
cnl_gt_workarounds_init(i915, wal);
@ -1183,6 +1197,10 @@ static void icl_whitelist_build(struct intel_engine_cs *engine)
}
}
static void tgl_whitelist_build(struct intel_engine_cs *engine)
{
}
void intel_engine_init_whitelist(struct intel_engine_cs *engine)
{
struct drm_i915_private *i915 = engine->i915;
@ -1190,7 +1208,9 @@ void intel_engine_init_whitelist(struct intel_engine_cs *engine)
wa_init_start(w, "whitelist", engine->name);
if (IS_GEN(i915, 11))
if (IS_GEN(i915, 12))
tgl_whitelist_build(engine);
else if (IS_GEN(i915, 11))
icl_whitelist_build(engine);
else if (IS_CANNONLAKE(i915))
cnl_whitelist_build(engine);

4
drivers/gpu/drm/i915/intel_pm.c
View file

@ -9597,7 +9597,9 @@ static void nop_init_clock_gating(struct drm_i915_private *dev_priv)
*/
void intel_init_clock_gating_hooks(struct drm_i915_private *dev_priv)
{
if (IS_GEN(dev_priv, 11))
if (IS_GEN(dev_priv, 12))
dev_priv->display.init_clock_gating = nop_init_clock_gating;
else if (IS_GEN(dev_priv, 11))
dev_priv->display.init_clock_gating = icl_init_clock_gating;
else if (IS_CANNONLAKE(dev_priv))
dev_priv->display.init_clock_gating = cnl_init_clock_gating;