On Fri, Jan 27, 2023 at 02:43:11PM -0800, Matt Roper wrote:
> Several post-TGL platforms have been brought up now, so we're well past
> the point where we usually drop the workarounds that are only applicable
> to internal/pre-production hardware.
>
> Production TGL hardware always has display stepping C0 or later and GT
> stepping B0 or later (this is true for both the original TGL and the U/Y
> subplatform).
>
> Bspec 44455
> Signed-off-by: Matt Roper <matthew.d.roper@xxxxxxxxx>
> ---
> .../drm/i915/display/intel_display_power.c | 5 +--
> drivers/gpu/drm/i915/display/intel_psr.c | 26 -----------
> .../drm/i915/display/skl_universal_plane.c | 2 +-
> drivers/gpu/drm/i915/gt/intel_workarounds.c | 44 ++-----------------
> drivers/gpu/drm/i915/i915_driver.c | 1 +
> drivers/gpu/drm/i915/i915_drv.h | 8 ----
> drivers/gpu/drm/i915/intel_pm.c | 4 --
> 7 files changed, 7 insertions(+), 83 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/display/intel_display_power.c b/drivers/gpu/drm/i915/display/intel_display_power.c
> index 1a23ecd4623a..1dc31f0f5e0a 100644
> --- a/drivers/gpu/drm/i915/display/intel_display_power.c
> +++ b/drivers/gpu/drm/i915/display/intel_display_power.c
> @@ -1581,9 +1581,8 @@ static void tgl_bw_buddy_init(struct drm_i915_private *dev_priv)
>
> if (IS_ALDERLAKE_S(dev_priv) ||
> IS_DG1_DISPLAY_STEP(dev_priv, STEP_A0, STEP_B0) ||
> - IS_RKL_DISPLAY_STEP(dev_priv, STEP_A0, STEP_B0) ||
> - IS_TGL_DISPLAY_STEP(dev_priv, STEP_A0, STEP_C0))
> - /* Wa_1409767108:tgl,dg1,adl-s */
> + IS_RKL_DISPLAY_STEP(dev_priv, STEP_A0, STEP_B0))
I believe we should go ahead and also remove the RKL ones like this.
After all we have ADL and MTL and none needed this for instance.
> + /* Wa_1409767108 */
> table = wa_1409767108_buddy_page_masks;
> else
> table = tgl_buddy_page_masks;
> diff --git a/drivers/gpu/drm/i915/display/intel_psr.c b/drivers/gpu/drm/i915/display/intel_psr.c
> index 7d4a15a283a0..5dca58dd97a9 100644
> --- a/drivers/gpu/drm/i915/display/intel_psr.c
> +++ b/drivers/gpu/drm/i915/display/intel_psr.c
> @@ -591,12 +591,6 @@ static void hsw_activate_psr2(struct intel_dp *intel_dp)
> if (intel_dp->psr.psr2_sel_fetch_enabled) {
> u32 tmp;
>
> - /* Wa_1408330847 */
> - if (IS_TGL_DISPLAY_STEP(dev_priv, STEP_A0, STEP_B0))
> - intel_de_rmw(dev_priv, CHICKEN_PAR1_1,
> - DIS_RAM_BYPASS_PSR2_MAN_TRACK,
> - DIS_RAM_BYPASS_PSR2_MAN_TRACK);
> -
> tmp = intel_de_read(dev_priv, PSR2_MAN_TRK_CTL(intel_dp->psr.transcoder));
> drm_WARN_ON(&dev_priv->drm, !(tmp & PSR2_MAN_TRK_CTL_ENABLE));
> } else if (HAS_PSR2_SEL_FETCH(dev_priv)) {
> @@ -765,13 +759,6 @@ static bool intel_psr2_sel_fetch_config_valid(struct intel_dp *intel_dp,
> return false;
> }
>
> - /* Wa_14010254185 Wa_14010103792 */
> - if (IS_TGL_DISPLAY_STEP(dev_priv, STEP_A0, STEP_C0)) {
> - drm_dbg_kms(&dev_priv->drm,
> - "PSR2 sel fetch not enabled, missing the implementation of WAs\n");
> - return false;
> - }
> -
> return crtc_state->enable_psr2_sel_fetch = true;
> }
>
> @@ -945,13 +932,6 @@ static bool intel_psr2_config_valid(struct intel_dp *intel_dp,
> }
> }
>
> - /* Wa_2209313811 */
> - if (!crtc_state->enable_psr2_sel_fetch &&
> - IS_TGL_DISPLAY_STEP(dev_priv, STEP_A0, STEP_C0)) {
> - drm_dbg_kms(&dev_priv->drm, "PSR2 HW tracking is not supported this Display stepping\n");
> - goto unsupported;
> - }
> -
> if (!psr2_granularity_check(intel_dp, crtc_state)) {
> drm_dbg_kms(&dev_priv->drm, "PSR2 not enabled, SU granularity not compatible\n");
> goto unsupported;
> @@ -1360,12 +1340,6 @@ static void intel_psr_disable_locked(struct intel_dp *intel_dp)
> intel_psr_exit(intel_dp);
> intel_psr_wait_exit_locked(intel_dp);
>
> - /* Wa_1408330847 */
> - if (intel_dp->psr.psr2_sel_fetch_enabled &&
> - IS_TGL_DISPLAY_STEP(dev_priv, STEP_A0, STEP_B0))
> - intel_de_rmw(dev_priv, CHICKEN_PAR1_1,
> - DIS_RAM_BYPASS_PSR2_MAN_TRACK, 0);
> -
> /*
> * Wa_16013835468
> * Wa_14015648006
> diff --git a/drivers/gpu/drm/i915/display/skl_universal_plane.c b/drivers/gpu/drm/i915/display/skl_universal_plane.c
> index 9b172a1e90de..e956edb87398 100644
> --- a/drivers/gpu/drm/i915/display/skl_universal_plane.c
> +++ b/drivers/gpu/drm/i915/display/skl_universal_plane.c
> @@ -2180,7 +2180,7 @@ static bool gen12_plane_has_mc_ccs(struct drm_i915_private *i915,
> if (DISPLAY_VER(i915) < 12)
> return false;
>
> - /* Wa_14010477008:tgl[a0..c0],rkl[all],dg1[all] */
> + /* Wa_14010477008 */
> if (IS_DG1(i915) || IS_ROCKETLAKE(i915) ||
> IS_TGL_DISPLAY_STEP(i915, STEP_A0, STEP_D0))
> return false;
> diff --git a/drivers/gpu/drm/i915/gt/intel_workarounds.c b/drivers/gpu/drm/i915/gt/intel_workarounds.c
> index 4efc1a532982..82a8f372bde6 100644
> --- a/drivers/gpu/drm/i915/gt/intel_workarounds.c
> +++ b/drivers/gpu/drm/i915/gt/intel_workarounds.c
> @@ -1456,31 +1456,6 @@ gen12_gt_workarounds_init(struct intel_gt *gt, struct i915_wa_list *wal)
> wa_mcr_write_or(wal, GEN10_DFR_RATIO_EN_AND_CHICKEN, DFR_DISABLE);
> }
>
> -static void
> -tgl_gt_workarounds_init(struct intel_gt *gt, struct i915_wa_list *wal)
> -{
> - struct drm_i915_private *i915 = gt->i915;
> -
> - gen12_gt_workarounds_init(gt, wal);
> -
> - /* Wa_1409420604:tgl */
> - if (IS_TGL_UY_GRAPHICS_STEP(i915, STEP_A0, STEP_B0))
> - wa_mcr_write_or(wal,
> - SUBSLICE_UNIT_LEVEL_CLKGATE2,
> - CPSSUNIT_CLKGATE_DIS);
> -
> - /* Wa_1607087056:tgl also know as BUG:1409180338 */
> - if (IS_TGL_UY_GRAPHICS_STEP(i915, STEP_A0, STEP_B0))
> - wa_write_or(wal,
> - GEN11_SLICE_UNIT_LEVEL_CLKGATE,
> - L3_CLKGATE_DIS | L3_CR2X_CLKGATE_DIS);
> -
> - /* Wa_1408615072:tgl[a0] */
> - if (IS_TGL_UY_GRAPHICS_STEP(i915, STEP_A0, STEP_B0))
> - wa_write_or(wal, UNSLICE_UNIT_LEVEL_CLKGATE2,
> - VSUNIT_CLKGATE_DIS_TGL);
> -}
> -
> static void
> dg1_gt_workarounds_init(struct intel_gt *gt, struct i915_wa_list *wal)
> {
> @@ -1716,8 +1691,6 @@ gt_init_workarounds(struct intel_gt *gt, struct i915_wa_list *wal)
> xehpsdv_gt_workarounds_init(gt, wal);
> else if (IS_DG1(i915))
> dg1_gt_workarounds_init(gt, wal);
> - else if (IS_TIGERLAKE(i915))
> - tgl_gt_workarounds_init(gt, wal);
> else if (GRAPHICS_VER(i915) == 12)
> gen12_gt_workarounds_init(gt, wal);
> else if (GRAPHICS_VER(i915) == 11)
> @@ -2437,27 +2410,16 @@ rcs_engine_wa_init(struct intel_engine_cs *engine, struct i915_wa_list *wal)
> true);
> }
>
> - if (IS_DG1_GRAPHICS_STEP(i915, STEP_A0, STEP_B0) ||
> - IS_TGL_UY_GRAPHICS_STEP(i915, STEP_A0, STEP_B0)) {
> + if (IS_DG1_GRAPHICS_STEP(i915, STEP_A0, STEP_B0)) {
> /*
> - * Wa_1607138336:tgl[a0],dg1[a0]
> - * Wa_1607063988:tgl[a0],dg1[a0]
> + * Wa_1607138336
> + * Wa_1607063988
> */
> wa_write_or(wal,
> GEN9_CTX_PREEMPT_REG,
> GEN12_DISABLE_POSH_BUSY_FF_DOP_CG);
> }
>
> - if (IS_TGL_UY_GRAPHICS_STEP(i915, STEP_A0, STEP_B0)) {
> - /*
> - * Wa_1606679103:tgl
> - * (see also Wa_1606682166:icl)
> - */
> - wa_write_or(wal,
> - GEN7_SARCHKMD,
> - GEN7_DISABLE_SAMPLER_PREFETCH);
> - }
> -
> if (IS_ALDERLAKE_P(i915) || IS_ALDERLAKE_S(i915) || IS_DG1(i915) ||
> IS_ROCKETLAKE(i915) || IS_TIGERLAKE(i915)) {
> /* Wa_1606931601:tgl,rkl,dg1,adl-s,adl-p */
> diff --git a/drivers/gpu/drm/i915/i915_driver.c b/drivers/gpu/drm/i915/i915_driver.c
> index cf1c0970ecb4..879ab4ed42af 100644
> --- a/drivers/gpu/drm/i915/i915_driver.c
> +++ b/drivers/gpu/drm/i915/i915_driver.c
> @@ -167,6 +167,7 @@ static void intel_detect_preproduction_hw(struct drm_i915_private *dev_priv)
> pre |= IS_KABYLAKE(dev_priv) && INTEL_REVID(dev_priv) < 0x1;
> pre |= IS_GEMINILAKE(dev_priv) && INTEL_REVID(dev_priv) < 0x3;
> pre |= IS_ICELAKE(dev_priv) && INTEL_REVID(dev_priv) < 0x7;
> + pre |= IS_TIGERLAKE(dev_priv) && INTEL_REVID(dev_priv) < 0x1;
>
> if (pre) {
> drm_err(&dev_priv->drm, "This is a pre-production stepping. "
> diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
> index 48c838b4ea62..62cc0f76c583 100644
> --- a/drivers/gpu/drm/i915/i915_drv.h
> +++ b/drivers/gpu/drm/i915/i915_drv.h
> @@ -653,14 +653,6 @@ IS_SUBPLATFORM(const struct drm_i915_private *i915,
> (IS_TIGERLAKE(__i915) && \
> IS_DISPLAY_STEP(__i915, since, until))
>
> -#define IS_TGL_UY_GRAPHICS_STEP(__i915, since, until) \
> - (IS_TGL_UY(__i915) && \
> - IS_GRAPHICS_STEP(__i915, since, until))
> -
> -#define IS_TGL_GRAPHICS_STEP(__i915, since, until) \
> - (IS_TIGERLAKE(__i915) && !IS_TGL_UY(__i915)) && \
> - IS_GRAPHICS_STEP(__i915, since, until))
> -
> #define IS_RKL_DISPLAY_STEP(p, since, until) \
> (IS_ROCKETLAKE(p) && IS_DISPLAY_STEP(p, since, until))
>
> diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
> index 3fc65bd12cc1..c6676f1a9c6f 100644
> --- a/drivers/gpu/drm/i915/intel_pm.c
> +++ b/drivers/gpu/drm/i915/intel_pm.c
> @@ -4336,10 +4336,6 @@ static void gen12lp_init_clock_gating(struct drm_i915_private *dev_priv)
> intel_uncore_write(&dev_priv->uncore, ILK_DPFC_CHICKEN(INTEL_FBC_A),
> DPFC_CHICKEN_COMP_DUMMY_PIXEL);
>
> - /* Wa_1409825376:tgl (pre-prod)*/
> - if (IS_TGL_DISPLAY_STEP(dev_priv, STEP_A0, STEP_C0))
> - intel_uncore_rmw(&dev_priv->uncore, GEN9_CLKGATE_DIS_3, 0, TGL_VRH_GATING_DIS);
> -
> /* Wa_14013723622:tgl,rkl,dg1,adl-s */
> if (DISPLAY_VER(dev_priv) == 12)
> intel_uncore_rmw(&dev_priv->uncore, CLKREQ_POLICY,
> --
> 2.39.1
>
