From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.7 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id BB778C433E0 for ; Thu, 11 Jun 2020 09:28:15 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 921A520747 for ; Thu, 11 Jun 2020 09:28:15 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 921A520747 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linux.intel.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=intel-gfx-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 3C1106E060; Thu, 11 Jun 2020 09:28:15 +0000 (UTC) Received: from mga03.intel.com (mga03.intel.com [134.134.136.65]) by gabe.freedesktop.org (Postfix) with ESMTPS id 23B016E060 for ; Thu, 11 Jun 2020 09:28:14 +0000 (UTC) IronPort-SDR: oTaprSSFf5D2+9zz7kjYQJoNlnoNkVlzZFT2rumCyfOCw8ogThZ38vQ83jZnoZY8NV2ngmBm8W WuQhHsBZTvsA== X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga004.jf.intel.com ([10.7.209.38]) by orsmga103.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 Jun 2020 02:28:13 -0700 IronPort-SDR: KqEkRvZJzGMfOAIdoBMxe1ji5HiK9+ibo3uYyQenfi/7TkiSph88zvUolEXp/pXU0XuksW3yKX vSmIheJJX7eg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.73,499,1583222400"; d="scan'208";a="419048885" Received: from gaia.fi.intel.com ([10.237.72.192]) by orsmga004.jf.intel.com with ESMTP; 11 Jun 2020 02:28:12 -0700 Received: by gaia.fi.intel.com (Postfix, from userid 1000) id B1C8C5C2CA7; Thu, 11 Jun 2020 12:25:36 +0300 (EEST) From: Mika Kuoppala To: Chris Wilson , intel-gfx@lists.freedesktop.org In-Reply-To: <20200611080140.30228-1-chris@chris-wilson.co.uk> References: <20200611080140.30228-1-chris@chris-wilson.co.uk> Date: Thu, 11 Jun 2020 12:25:36 +0300 Message-ID: <871rmm9cof.fsf@gaia.fi.intel.com> MIME-Version: 1.0 Subject: Re: [Intel-gfx] [PATCH 1/6] drm/i915/gt: Move hsw GT workarounds from init_clock_gating to workarounds X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Chris Wilson Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" Chris Wilson writes: > Rescue the GT workarounds from being buried inside init_clock_gating so > that we remember to apply them after a GT reset, and that they are > included in our verification that the workarounds are applied. > > Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/2011 > Signed-off-by: Chris Wilson > --- > drivers/gpu/drm/i915/gt/intel_workarounds.c | 48 +++++++++++++++++++++ > drivers/gpu/drm/i915/intel_pm.c | 39 +---------------- > 2 files changed, 50 insertions(+), 37 deletions(-) > > diff --git a/drivers/gpu/drm/i915/gt/intel_workarounds.c b/drivers/gpu/drm/i915/gt/intel_workarounds.c > index 3eec31c5a714..39f070bff09d 100644 > --- a/drivers/gpu/drm/i915/gt/intel_workarounds.c > +++ b/drivers/gpu/drm/i915/gt/intel_workarounds.c > @@ -178,6 +178,12 @@ wa_write_or(struct i915_wa_list *wal, i915_reg_t reg, u32 set) > wa_write_masked_or(wal, reg, set, set); > } > > +static void > +wa_write_clr(struct i915_wa_list *wal, i915_reg_t reg, u32 clr) > +{ > + wa_write_masked_or(wal, reg, clr, 0); > +} > + > static void > wa_masked_en(struct i915_wa_list *wal, i915_reg_t reg, u32 val) > { > @@ -708,6 +714,46 @@ int intel_engine_emit_ctx_wa(struct i915_request *rq) > return 0; > } > > +static void > +hsw_gt_workarounds_init(struct drm_i915_private *i915, struct i915_wa_list *wal) > +{ > + /* L3 caching of data atomics doesn't work -- disable it. */ > + wa_write_or(wal, HSW_SCRATCH1, HSW_SCRATCH1_L3_DATA_ATOMICS_DISABLE); Just noted here is a change. We cleared everything else but this previously. -Mika > + > + wa_add(wal, > + HSW_ROW_CHICKEN3, 0, > + _MASKED_BIT_ENABLE(HSW_ROW_CHICKEN3_L3_GLOBAL_ATOMICS_DISABLE), > + 0 /* XXX does this reg exist? */); > + > + /* WaVSRefCountFullforceMissDisable:hsw */ > + wa_write_clr(wal, GEN7_FF_THREAD_MODE, GEN7_FF_VS_REF_CNT_FFME); > + > + wa_masked_dis(wal, > + CACHE_MODE_0_GEN7, > + /* WaDisable_RenderCache_OperationalFlush:hsw */ > + RC_OP_FLUSH_ENABLE | > + /* enable HiZ Raw Stall Optimization */ > + HIZ_RAW_STALL_OPT_DISABLE); > + > + /* WaDisable4x2SubspanOptimization:hsw */ > + wa_masked_en(wal, CACHE_MODE_1, PIXEL_SUBSPAN_COLLECT_OPT_DISABLE); > + > + /* > + * BSpec recommends 8x4 when MSAA is used, > + * however in practice 16x4 seems fastest. > + * > + * Note that PS/WM thread counts depend on the WIZ hashing > + * disable bit, which we don't touch here, but it's good > + * to keep in mind (see 3DSTATE_PS and 3DSTATE_WM). > + */ > + wa_add(wal, GEN7_GT_MODE, 0, > + _MASKED_FIELD(GEN6_WIZ_HASHING_MASK, GEN6_WIZ_HASHING_16x4), > + GEN6_WIZ_HASHING_16x4); > + > + /* WaSampleCChickenBitEnable:hsw */ > + wa_masked_en(wal, HALF_SLICE_CHICKEN3, HSW_SAMPLE_C_PERFORMANCE); > +} > + > static void > gen9_gt_workarounds_init(struct drm_i915_private *i915, struct i915_wa_list *wal) > { > @@ -985,6 +1031,8 @@ gt_init_workarounds(struct drm_i915_private *i915, struct i915_wa_list *wal) > bxt_gt_workarounds_init(i915, wal); > else if (IS_SKYLAKE(i915)) > skl_gt_workarounds_init(i915, wal); > + else if (IS_HASWELL(i915)) > + hsw_gt_workarounds_init(i915, wal); > else if (INTEL_GEN(i915) <= 8) > return; > else > diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c > index 26b670fa3f88..249ee720874c 100644 > --- a/drivers/gpu/drm/i915/intel_pm.c > +++ b/drivers/gpu/drm/i915/intel_pm.c > @@ -7321,45 +7321,10 @@ static void bdw_init_clock_gating(struct drm_i915_private *dev_priv) > > static void hsw_init_clock_gating(struct drm_i915_private *dev_priv) > { > - /* L3 caching of data atomics doesn't work -- disable it. */ > - I915_WRITE(HSW_SCRATCH1, HSW_SCRATCH1_L3_DATA_ATOMICS_DISABLE); > - I915_WRITE(HSW_ROW_CHICKEN3, > - _MASKED_BIT_ENABLE(HSW_ROW_CHICKEN3_L3_GLOBAL_ATOMICS_DISABLE)); > - > /* This is required by WaCatErrorRejectionIssue:hsw */ > I915_WRITE(GEN7_SQ_CHICKEN_MBCUNIT_CONFIG, > - I915_READ(GEN7_SQ_CHICKEN_MBCUNIT_CONFIG) | > - GEN7_SQ_CHICKEN_MBCUNIT_SQINTMOB); > - > - /* WaVSRefCountFullforceMissDisable:hsw */ > - I915_WRITE(GEN7_FF_THREAD_MODE, > - I915_READ(GEN7_FF_THREAD_MODE) & ~GEN7_FF_VS_REF_CNT_FFME); > - > - /* WaDisable_RenderCache_OperationalFlush:hsw */ > - I915_WRITE(CACHE_MODE_0_GEN7, _MASKED_BIT_DISABLE(RC_OP_FLUSH_ENABLE)); > - > - /* enable HiZ Raw Stall Optimization */ > - I915_WRITE(CACHE_MODE_0_GEN7, > - _MASKED_BIT_DISABLE(HIZ_RAW_STALL_OPT_DISABLE)); > - > - /* WaDisable4x2SubspanOptimization:hsw */ > - I915_WRITE(CACHE_MODE_1, > - _MASKED_BIT_ENABLE(PIXEL_SUBSPAN_COLLECT_OPT_DISABLE)); > - > - /* > - * BSpec recommends 8x4 when MSAA is used, > - * however in practice 16x4 seems fastest. > - * > - * Note that PS/WM thread counts depend on the WIZ hashing > - * disable bit, which we don't touch here, but it's good > - * to keep in mind (see 3DSTATE_PS and 3DSTATE_WM). > - */ > - I915_WRITE(GEN7_GT_MODE, > - _MASKED_FIELD(GEN6_WIZ_HASHING_MASK, GEN6_WIZ_HASHING_16x4)); > - > - /* WaSampleCChickenBitEnable:hsw */ > - I915_WRITE(HALF_SLICE_CHICKEN3, > - _MASKED_BIT_ENABLE(HSW_SAMPLE_C_PERFORMANCE)); > + I915_READ(GEN7_SQ_CHICKEN_MBCUNIT_CONFIG) | > + GEN7_SQ_CHICKEN_MBCUNIT_SQINTMOB); > > /* WaSwitchSolVfFArbitrationPriority:hsw */ > I915_WRITE(GAM_ECOCHK, I915_READ(GAM_ECOCHK) | HSW_ECOCHK_ARB_PRIO_SOL); > -- > 2.20.1 > > _______________________________________________ > Intel-gfx mailing list > Intel-gfx@lists.freedesktop.org > https://lists.freedesktop.org/mailman/listinfo/intel-gfx _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/intel-gfx