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From: "Souza, Jose" <jose.souza@intel.com>
To: "Swarup, Aditya" <aditya.swarup@intel.com>,
	"intel-gfx@lists.freedesktop.org"
	<intel-gfx@lists.freedesktop.org>
Cc: "Nikula, Jani" <jani.nikula@intel.com>,
	"De Marchi, Lucas" <lucas.demarchi@intel.com>
Subject: Re: [Intel-gfx] [PATCH 02/21] drm/i915/tgl: Fix macros for TGL SOC based WA
Date: Tue, 17 Nov 2020 19:03:05 +0000	[thread overview]
Message-ID: <02ea7d2b7eb151787abe8cf42771db40a7f0ef7d.camel@intel.com> (raw)
In-Reply-To: <20201117185029.22078-3-aditya.swarup@intel.com>

On Tue, 2020-11-17 at 10:50 -0800, Aditya Swarup wrote:
> Fix macros for applying TGL SOC WAs by using INTEL_REVID()
> as index to fetch correct revision offset in TGL GT/DISP stepping
> table.

Please explain what exactly is the issue you are fixing, the change you did in tgl_revids_get() + IS_TGL_GT_REVID looks a improvement but not a fix.

> 
> Also, remove redundant macros and simplify it to use GT and DISP
> macros for getting applicable stepping for TGL.
> 
> Fixes: ("drm/i915/tgl: Fix stepping WA matching")
> Cc: José Roberto de Souza <jose.souza@intel.com>
> Cc: Matt Roper <matthew.d.roper@intel.com>
> Cc: Lucas De Marchi <lucas.demarchi@intel.com>
> Cc: Jani Nikula <jani.nikula@intel.com>
> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
> Signed-off-by: Aditya Swarup <aditya.swarup@intel.com>
> ---
>  .../drm/i915/display/intel_display_power.c    |  2 +-
>  drivers/gpu/drm/i915/display/intel_psr.c      |  4 ++--
>  drivers/gpu/drm/i915/display/intel_sprite.c   |  2 +-
>  drivers/gpu/drm/i915/gt/intel_workarounds.c   | 20 ++++++++--------
>  drivers/gpu/drm/i915/i915_drv.h               | 24 +++++++------------
>  drivers/gpu/drm/i915/intel_pm.c               |  2 +-
>  6 files changed, 24 insertions(+), 30 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/display/intel_display_power.c b/drivers/gpu/drm/i915/display/intel_display_power.c
> index fe2d90bba536..06c036e2092c 100644
> --- a/drivers/gpu/drm/i915/display/intel_display_power.c
> +++ b/drivers/gpu/drm/i915/display/intel_display_power.c
> @@ -5283,7 +5283,7 @@ static void tgl_bw_buddy_init(struct drm_i915_private *dev_priv)
>  	int config, i;
>  
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
>  	if (IS_DG1_REVID(dev_priv, DG1_REVID_A0, DG1_REVID_A0) ||
> -	    IS_TGL_DISP_REVID(dev_priv, TGL_REVID_A0, TGL_REVID_B0))
> +	    IS_TGL_DISP_REVID(dev_priv, REVID_A0, REVID_B0))
>  		/* Wa_1409767108:tgl,dg1 */
>  		table = wa_1409767108_buddy_page_masks;
>  	else
> diff --git a/drivers/gpu/drm/i915/display/intel_psr.c b/drivers/gpu/drm/i915/display/intel_psr.c
> index b3631b722de3..c057a03b2ed4 100644
> --- a/drivers/gpu/drm/i915/display/intel_psr.c
> +++ b/drivers/gpu/drm/i915/display/intel_psr.c
> @@ -550,7 +550,7 @@ static void hsw_activate_psr2(struct intel_dp *intel_dp)
>  
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
>  	if (dev_priv->psr.psr2_sel_fetch_enabled) {
>  		/* WA 1408330847 */
> -		if (IS_TGL_DISP_REVID(dev_priv, TGL_REVID_A0, TGL_REVID_A0) ||
> +		if (IS_TGL_DISP_REVID(dev_priv, REVID_A0, REVID_A0) ||
>  		    IS_RKL_REVID(dev_priv, RKL_REVID_A0, RKL_REVID_A0))
>  			intel_de_rmw(dev_priv, CHICKEN_PAR1_1,
>  				     DIS_RAM_BYPASS_PSR2_MAN_TRACK,
> @@ -1102,7 +1102,7 @@ static void intel_psr_disable_locked(struct intel_dp *intel_dp)
>  
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
>  	/* WA 1408330847 */
>  	if (dev_priv->psr.psr2_sel_fetch_enabled &&
> -	    (IS_TGL_DISP_REVID(dev_priv, TGL_REVID_A0, TGL_REVID_A0) ||
> +	    (IS_TGL_DISP_REVID(dev_priv, REVID_A0, REVID_A0) ||
>  	     IS_RKL_REVID(dev_priv, RKL_REVID_A0, RKL_REVID_A0)))
>  		intel_de_rmw(dev_priv, CHICKEN_PAR1_1,
>  			     DIS_RAM_BYPASS_PSR2_MAN_TRACK, 0);
> diff --git a/drivers/gpu/drm/i915/display/intel_sprite.c b/drivers/gpu/drm/i915/display/intel_sprite.c
> index a3ab44694118..f7da4a56054e 100644
> --- a/drivers/gpu/drm/i915/display/intel_sprite.c
> +++ b/drivers/gpu/drm/i915/display/intel_sprite.c
> @@ -3022,7 +3022,7 @@ static bool gen12_plane_supports_mc_ccs(struct drm_i915_private *dev_priv,
>  {
>  	/* Wa_14010477008:tgl[a0..c0],rkl[all],dg1[all] */
>  	if (IS_DG1(dev_priv) || IS_ROCKETLAKE(dev_priv) ||
> -	    IS_TGL_DISP_REVID(dev_priv, TGL_REVID_A0, TGL_REVID_C0))
> +	    IS_TGL_DISP_REVID(dev_priv, REVID_A0, REVID_C0))
>  		return false;
>  
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
>  	return plane_id < PLANE_SPRITE4;
> diff --git a/drivers/gpu/drm/i915/gt/intel_workarounds.c b/drivers/gpu/drm/i915/gt/intel_workarounds.c
> index a82554baa6ac..d756155d82ea 100644
> --- a/drivers/gpu/drm/i915/gt/intel_workarounds.c
> +++ b/drivers/gpu/drm/i915/gt/intel_workarounds.c
> @@ -71,16 +71,16 @@ const struct i915_rev_steppings kbl_revids[] = {
>  };
>  
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
>  const struct i915_rev_steppings tgl_uy_revids[] = {
> -	[0] = { .gt_stepping = TGL_REVID_A0, .disp_stepping = TGL_REVID_A0 },
> -	[1] = { .gt_stepping = TGL_REVID_B0, .disp_stepping = TGL_REVID_C0 },
> -	[2] = { .gt_stepping = TGL_REVID_B1, .disp_stepping = TGL_REVID_C0 },
> -	[3] = { .gt_stepping = TGL_REVID_C0, .disp_stepping = TGL_REVID_D0 },
> +	[0] = { .gt_stepping = REVID_A0, .disp_stepping = REVID_A0 },
> +	[1] = { .gt_stepping = REVID_B0, .disp_stepping = REVID_C0 },
> +	[2] = { .gt_stepping = REVID_B1, .disp_stepping = REVID_C0 },
> +	[3] = { .gt_stepping = REVID_C0, .disp_stepping = REVID_D0 },
>  };
>  
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
>  /* Same GT stepping between tgl_uy_revids and tgl_revids don't mean the same HW */
>  const struct i915_rev_steppings tgl_revids[] = {
> -	[0] = { .gt_stepping = TGL_REVID_A0, .disp_stepping = TGL_REVID_B0 },
> -	[1] = { .gt_stepping = TGL_REVID_B0, .disp_stepping = TGL_REVID_D0 },
> +	[0] = { .gt_stepping = REVID_A0, .disp_stepping = REVID_B0 },
> +	[1] = { .gt_stepping = REVID_B0, .disp_stepping = REVID_D0 },
>  };
>  
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
>  static void wa_init_start(struct i915_wa_list *wal, const char *name, const char *engine_name)
> @@ -1250,13 +1250,13 @@ tgl_gt_workarounds_init(struct drm_i915_private *i915, struct i915_wa_list *wal)
>  	gen12_gt_workarounds_init(i915, wal);
>  
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
>  	/* Wa_1409420604:tgl */
> -	if (IS_TGL_UY_GT_REVID(i915, TGL_REVID_A0, TGL_REVID_A0))
> +	if (IS_TGL_GT_REVID(i915, REVID_A0, REVID_A0))
>  		wa_write_or(wal,
>  			    SUBSLICE_UNIT_LEVEL_CLKGATE2,
>  			    CPSSUNIT_CLKGATE_DIS);
>  
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
>  	/* Wa_1607087056:tgl also know as BUG:1409180338 */
> -	if (IS_TGL_UY_GT_REVID(i915, TGL_REVID_A0, TGL_REVID_A0))
> +	if (IS_TGL_GT_REVID(i915, REVID_A0, REVID_A0))
>  		wa_write_or(wal,
>  			    SLICE_UNIT_LEVEL_CLKGATE,
>  			    L3_CLKGATE_DIS | L3_CR2X_CLKGATE_DIS);
> @@ -1734,7 +1734,7 @@ rcs_engine_wa_init(struct intel_engine_cs *engine, struct i915_wa_list *wal)
>  	struct drm_i915_private *i915 = engine->i915;
>  
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
>  	if (IS_DG1_REVID(i915, DG1_REVID_A0, DG1_REVID_A0) ||
> -	    IS_TGL_UY_GT_REVID(i915, TGL_REVID_A0, TGL_REVID_A0)) {
> +	    IS_TGL_GT_REVID(i915, REVID_A0, REVID_A0)) {
>  		/*
>  		 * Wa_1607138336:tgl[a0],dg1[a0]
>  		 * Wa_1607063988:tgl[a0],dg1[a0]
> @@ -1744,7 +1744,7 @@ rcs_engine_wa_init(struct intel_engine_cs *engine, struct i915_wa_list *wal)
>  			    GEN12_DISABLE_POSH_BUSY_FF_DOP_CG);
>  	}
>  
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> -	if (IS_TGL_UY_GT_REVID(i915, TGL_REVID_A0, TGL_REVID_A0)) {
> +	if (IS_TGL_GT_REVID(i915, REVID_A0, REVID_A0)) {
>  		/*
>  		 * Wa_1606679103:tgl
>  		 * (see also Wa_1606682166:icl)
> diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
> index 15be8debae54..437916aacaa6 100644
> --- a/drivers/gpu/drm/i915/i915_drv.h
> +++ b/drivers/gpu/drm/i915/i915_drv.h
> @@ -1565,11 +1565,11 @@ extern const struct i915_rev_steppings kbl_revids[];
>  	(IS_JSL_EHL(p) && IS_REVID(p, since, until))
>  
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
>  enum {
> -	TGL_REVID_A0,
> -	TGL_REVID_B0,
> -	TGL_REVID_B1,
> -	TGL_REVID_C0,
> -	TGL_REVID_D0,
> +	REVID_A0,
> +	REVID_B0,
> +	REVID_B1,
> +	REVID_C0,
> +	REVID_D0,

Better keep "TGL_" otherwise this could be used in other platforms that have different values for each revision.

>  };
>  
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
>  extern const struct i915_rev_steppings tgl_uy_revids[];
> @@ -1579,9 +1579,9 @@ static inline const struct i915_rev_steppings *
>  tgl_revids_get(struct drm_i915_private *dev_priv)
>  {
>  	if (IS_TGL_U(dev_priv) || IS_TGL_Y(dev_priv))
> -		return tgl_uy_revids;
> +		return tgl_uy_revids + INTEL_REVID(dev_priv);
>  	else
> -		return tgl_revids;
> +		return tgl_revids + INTEL_REVID(dev_priv);

better do tgl_revids[INTEL_REVID(dev_priv)] with a array size check first.

>  }
>  
> 
> 
> 
> 
> 
> 
> 
>  #define IS_TGL_DISP_REVID(p, since, until) \
> @@ -1589,16 +1589,10 @@ tgl_revids_get(struct drm_i915_private *dev_priv)
>  	 tgl_revids_get(p)->disp_stepping >= (since) && \
>  	 tgl_revids_get(p)->disp_stepping <= (until))
>  
> 
> 
> 
> 
> 
> 
> 
> -#define IS_TGL_UY_GT_REVID(p, since, until) \
> -	((IS_TGL_U(p) || IS_TGL_Y(p)) && \
> -	 tgl_uy_revids->gt_stepping >= (since) && \
> -	 tgl_uy_revids->gt_stepping <= (until))
> -
>  #define IS_TGL_GT_REVID(p, since, until) \
>  	(IS_TIGERLAKE(p) && \
> -	 !(IS_TGL_U(p) || IS_TGL_Y(p)) && \
> -	 tgl_revids->gt_stepping >= (since) && \
> -	 tgl_revids->gt_stepping <= (until))
> +	 tgl_revids_get(p)->gt_stepping >= (since) && \
> +	 tgl_revids_get(p)->gt_stepping <= (until))
>  
> 
> 
> 
> 
> 
> 
> 
>  #define RKL_REVID_A0		0x0
>  #define RKL_REVID_B0		0x1
> diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
> index a20b5051f18c..69840aa0d4db 100644
> --- a/drivers/gpu/drm/i915/intel_pm.c
> +++ b/drivers/gpu/drm/i915/intel_pm.c
> @@ -7110,7 +7110,7 @@ static void tgl_init_clock_gating(struct drm_i915_private *dev_priv)
>  		   ILK_DPFC_CHICKEN_COMP_DUMMY_PIXEL);
>  
> 
> 
> 
> 
> 
> 
> 
>  	/* Wa_1409825376:tgl (pre-prod)*/
> -	if (IS_TGL_DISP_REVID(dev_priv, TGL_REVID_A0, TGL_REVID_B1))
> +	if (IS_TGL_DISP_REVID(dev_priv, REVID_A0, REVID_B1))
>  		I915_WRITE(GEN9_CLKGATE_DIS_3, I915_READ(GEN9_CLKGATE_DIS_3) |
>  			   TGL_VRH_GATING_DIS);
>  
> 
> 
> 
> 
> 
> 
> 

_______________________________________________
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  reply	other threads:[~2020-11-17 19:03 UTC|newest]

Thread overview: 56+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-11-17 18:50 [Intel-gfx] [PATCH 00/21] Introduce Alderlake-S Aditya Swarup
2020-11-17 18:50 ` [Intel-gfx] [PATCH 01/21] drm/i915/dg1: Enable ports Aditya Swarup
2020-11-17 18:50 ` [Intel-gfx] [PATCH 02/21] drm/i915/tgl: Fix macros for TGL SOC based WA Aditya Swarup
2020-11-17 19:03   ` Souza, Jose [this message]
2020-11-17 19:28     ` Lucas De Marchi
2020-11-17 19:33       ` Souza, Jose
2020-11-18  7:56         ` Lucas De Marchi
2020-11-17 19:31   ` Lucas De Marchi
2020-11-18  9:18     ` Jani Nikula
2020-11-24  1:32       ` Aditya Swarup
2020-11-24 13:14         ` Lucas De Marchi
2020-11-24 14:20           ` Jani Nikula
2020-11-24 20:11             ` Lucas De Marchi
2020-11-25  0:48               ` Aditya Swarup
2020-11-25  8:36                 ` Jani Nikula
2020-11-17 18:50 ` [Intel-gfx] [PATCH 03/21] drm/i915/adl_s: Add ADL-S platform info and PCI ids Aditya Swarup
2020-11-17 19:17   ` Jani Nikula
2020-11-24  1:50     ` Aditya Swarup
2020-11-24  9:28       ` Jani Nikula
2020-11-17 18:50 ` [Intel-gfx] [PATCH 04/21] x86/gpu: add ADL_S stolen memory support Aditya Swarup
2020-11-17 18:50 ` [Intel-gfx] [PATCH 05/21] drm/i915/adl_s: Add PCH support Aditya Swarup
2020-11-20  0:09   ` Matt Roper
2020-11-17 18:50 ` [Intel-gfx] [PATCH 06/21] drm/i915/adl_s: Add Interrupt Support Aditya Swarup
2020-11-20  0:12   ` Matt Roper
2020-11-17 18:50 ` [Intel-gfx] [PATCH 07/21] drm/i915/adl_s: Add PHYs for Alderlake S Aditya Swarup
2020-11-20  0:20   ` Matt Roper
2020-11-17 18:50 ` [Intel-gfx] [PATCH 08/21] drm/i915/adl_s: Configure DPLL for ADL-S Aditya Swarup
2020-11-17 18:50 ` [Intel-gfx] [PATCH 09/21] drm/i915/adl_s: Configure Port clock registers " Aditya Swarup
2020-11-17 18:50 ` [Intel-gfx] [PATCH 10/21] drm/i915/adl_s: Add HTI support and initialize display " Aditya Swarup
2020-11-20  0:27   ` Matt Roper
2020-11-17 18:50 ` [Intel-gfx] [PATCH 11/21] drm/i915/adl_s: Add adl-s ddc pin mapping Aditya Swarup
2020-11-20  0:33   ` Matt Roper
2020-11-17 18:50 ` [Intel-gfx] [PATCH 12/21] drm/i915/adl_s: Add vbt port and aux channel settings for adls Aditya Swarup
2020-11-17 18:50 ` [Intel-gfx] [PATCH 13/21] drm/i915/adl_s: Update combo PHY master/slave relationships Aditya Swarup
2020-11-25 23:38   ` Srivatsa, Anusha
2020-11-17 18:50 ` [Intel-gfx] [PATCH 14/21] drm/i915/adl_s: Update PHY_MISC programming Aditya Swarup
2020-11-17 18:50 ` [Intel-gfx] [PATCH 15/21] drm/i915/adl_s: Add display, gt, ctx and ADL-S Aditya Swarup
2020-12-01 18:46   ` Srivatsa, Anusha
2020-12-01 20:51     ` Lucas De Marchi
2020-11-17 18:50 ` [Intel-gfx] [PATCH 16/21] drm/i915/adl_s: MCHBAR memory info registers are moved Aditya Swarup
2020-11-20 20:18   ` Lucas De Marchi
2020-11-20 20:39     ` Caz Yokoyama
2020-11-25  0:11   ` Lucas De Marchi
2020-11-17 18:50 ` [Intel-gfx] [PATCH 17/21] drm/i915/adl_s: Add power wells Aditya Swarup
2020-11-17 18:50 ` [Intel-gfx] [PATCH 18/21] drm/i915/adl_s: Re-use TGL GuC/HuC firmware Aditya Swarup
2020-11-25 22:52   ` Srivatsa, Anusha
2020-11-17 18:50 ` [Intel-gfx] [PATCH 19/21] drm/i915/display: Add HAS_D12_PLANE_MINIMIZATION Aditya Swarup
2020-12-01 18:35   ` Srivatsa, Anusha
2020-11-17 18:50 ` [Intel-gfx] [PATCH 20/21] drm/i915/adl_s: Load DMC Aditya Swarup
2020-11-17 18:50 ` [Intel-gfx] [PATCH 21/21] drm/i915/adl_s: Update memory bandwidth parameters Aditya Swarup
2020-11-25 22:46   ` Srivatsa, Anusha
2020-11-18  1:28 ` [Intel-gfx] ✗ Fi.CI.CHECKPATCH: warning for Introduce Alderlake-S (rev2) Patchwork
2020-11-18  1:29 ` [Intel-gfx] ✗ Fi.CI.SPARSE: " Patchwork
2020-11-18  1:57 ` [Intel-gfx] ✓ Fi.CI.BAT: success " Patchwork
2020-11-18  7:53 ` [Intel-gfx] [PATCH 00/21] Introduce Alderlake-S Lucas De Marchi
2020-11-18 15:14 ` [Intel-gfx] ✗ Fi.CI.IGT: failure for Introduce Alderlake-S (rev2) Patchwork

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