diff options
| author | Matt Roper <matthew.d.roper@intel.com> | 2021-11-02 15:25:11 -0700 |
|---|---|---|
| committer | Matt Roper <matthew.d.roper@intel.com> | 2021-11-11 11:09:11 -0800 |
| commit | 212e6562f33becbab1996261677a0b89c5ab8b54 (patch) | |
| tree | 8efb48f87a3d66132d3a0612961e7b93e0096c8b /drivers/gpu/drm/i915/gt/intel_workarounds.c | |
| parent | 645cc0b9d972b8bfaa983623950c3a53ccd0c57a (diff) | |
drm/i915/dg2: Program recommended HW settings
The bspec's performance guide suggests programming specific values into
a few registers for optimal performance. Although these aren't
workarounds, it's easiest to handle them inside the GT workaround
functions (which will also ensure that the values set here are properly
melded with other bits in the same registers that _are_ set by
workarounds).
Bspec: 68331, 45395
Cc: Matt Atwood <matthew.s.atwood@intel.com>
Cc: Lucas De Marchi <lucas.demarchi@intel.com>
Cc: Siddiqui Ayaz A <ayaz.siddiqui@intel.com>
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Clint Taylor <Clinton.A.Taylor@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211102222511.534310-4-matthew.d.roper@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/gt/intel_workarounds.c')
| -rw-r--r-- | drivers/gpu/drm/i915/gt/intel_workarounds.c | 26 |
1 files changed, 25 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/gt/intel_workarounds.c b/drivers/gpu/drm/i915/gt/intel_workarounds.c index 37fd541a9719..51591119da15 100644 --- a/drivers/gpu/drm/i915/gt/intel_workarounds.c +++ b/drivers/gpu/drm/i915/gt/intel_workarounds.c @@ -560,6 +560,22 @@ static void icl_ctx_workarounds_init(struct intel_engine_cs *engine, /* * These settings aren't actually workarounds, but general tuning settings that + * need to be programmed on dg2 platform. + */ +static void dg2_ctx_gt_tuning_init(struct intel_engine_cs *engine, + struct i915_wa_list *wal) +{ + wa_write_clr_set(wal, GEN11_L3SQCREG5, L3_PWM_TIMER_INIT_VAL_MASK, + REG_FIELD_PREP(L3_PWM_TIMER_INIT_VAL_MASK, 0x7f)); + wa_add(wal, + FF_MODE2, + FF_MODE2_TDS_TIMER_MASK, + FF_MODE2_TDS_TIMER_128, + 0, false); +} + +/* + * These settings aren't actually workarounds, but general tuning settings that * need to be programmed on several platforms. */ static void gen12_ctx_gt_tuning_init(struct intel_engine_cs *engine, @@ -647,7 +663,7 @@ static void dg1_ctx_workarounds_init(struct intel_engine_cs *engine, static void dg2_ctx_workarounds_init(struct intel_engine_cs *engine, struct i915_wa_list *wal) { - gen12_ctx_gt_tuning_init(engine, wal); + dg2_ctx_gt_tuning_init(engine, wal); /* Wa_16011186671:dg2_g11 */ if (IS_DG2_GRAPHICS_STEP(engine->i915, G11, STEP_A0, STEP_B0)) { @@ -1482,6 +1498,14 @@ dg2_gt_workarounds_init(struct intel_gt *gt, struct i915_wa_list *wal) /* Wa_14014830051:dg2 */ wa_write_clr(wal, SARB_CHICKEN1, COMP_CKN_IN); + + /* + * The following are not actually "workarounds" but rather + * recommended tuning settings documented in the bspec's + * performance guide section. + */ + wa_write_or(wal, XEHP_L3SCQREG7, BLEND_FILL_CACHING_OPT_DIS); + wa_write_or(wal, GEN12_SQCM, EN_32B_ACCESS); } static void |