Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id CE044C433EF for ; Wed, 12 Jan 2022 16:28:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1355189AbiALQ2N (ORCPT ); Wed, 12 Jan 2022 11:28:13 -0500 Received: from foss.arm.com ([217.140.110.172]:33142 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1349786AbiALQ2M (ORCPT ); Wed, 12 Jan 2022 11:28:12 -0500 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 9CAEB1FB; Wed, 12 Jan 2022 08:28:11 -0800 (PST) Received: from [10.57.36.149] (unknown [10.57.36.149]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 6B03A3F774; Wed, 12 Jan 2022 08:28:10 -0800 (PST) Subject: Re: [PATCH 1/2] drm/panfrost: Remove features meant for userspace To: Alyssa Rosenzweig , dri-devel@lists.freedesktop.org Cc: Rob Herring , Tomeu Vizoso , David Airlie , Daniel Vetter , linux-kernel@vger.kernel.org References: <20220109170920.2921-1-alyssa.rosenzweig@collabora.com> <20220109170920.2921-2-alyssa.rosenzweig@collabora.com> From: Steven Price Message-ID: Date: Wed, 12 Jan 2022 16:28:09 +0000 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.14.0 MIME-Version: 1.0 In-Reply-To: <20220109170920.2921-2-alyssa.rosenzweig@collabora.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-GB Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 09/01/2022 17:09, Alyssa Rosenzweig wrote: > Early versions of the legacy kernel driver included comprehensive > feature lists for every GPU, even though most of the enumerated features > only matter to userspace. For example, HW_FEATURE_INTERPIPE_REG_ALIASING > was a feature bit indicating that a GPU had "interpipe register > aliasing": arithmetic, load/store, and texture instruction all use > common general-purpose registers. GPUs without this feature bit have > dedicated load/store and texture "registers". Whether a GPU has this > feature or not is irrelevant to the kernel; it only matters in the > userspace compiler's register allocator. It's silly to enumerate it in > kernel space, and the information is understandably unused. To > underscore the point, this feature only makes sense in the context of > the Midgard instruction set. Bifrost never had dedicated load/store or > texture registers, so the feature bit was vacuously set for all Bifrost > hardware, even though this conveys no useful information. > > To clean up the feature list, delete feature bits which could not > possibly matter to the kernel, leaving only those which do affect the > register-level operation of the chip. > > Signed-off-by: Alyssa Rosenzweig Reviewed-by: Steven Price (although it's a good thing kbase never did this cleanup - it's a useful source of public information ;) ) Steve > --- > drivers/gpu/drm/panfrost/panfrost_features.h | 172 ------------------- > 1 file changed, 172 deletions(-) > > diff --git a/drivers/gpu/drm/panfrost/panfrost_features.h b/drivers/gpu/drm/panfrost/panfrost_features.h > index 5056777c7744..f557fad5d5ff 100644 > --- a/drivers/gpu/drm/panfrost/panfrost_features.h > +++ b/drivers/gpu/drm/panfrost/panfrost_features.h > @@ -12,24 +12,6 @@ enum panfrost_hw_feature { > HW_FEATURE_JOBCHAIN_DISAMBIGUATION, > HW_FEATURE_PWRON_DURING_PWROFF_TRANS, > HW_FEATURE_XAFFINITY, > - HW_FEATURE_OUT_OF_ORDER_EXEC, > - HW_FEATURE_MRT, > - HW_FEATURE_BRNDOUT_CC, > - HW_FEATURE_INTERPIPE_REG_ALIASING, > - HW_FEATURE_LD_ST_TILEBUFFER, > - HW_FEATURE_MSAA_16X, > - HW_FEATURE_32_BIT_UNIFORM_ADDRESS, > - HW_FEATURE_ATTR_AUTO_TYPE_INFERRAL, > - HW_FEATURE_OPTIMIZED_COVERAGE_MASK, > - HW_FEATURE_T7XX_PAIRING_RULES, > - HW_FEATURE_LD_ST_LEA_TEX, > - HW_FEATURE_LINEAR_FILTER_FLOAT, > - HW_FEATURE_WORKGROUP_ROUND_MULTIPLE_OF_4, > - HW_FEATURE_IMAGES_IN_FRAGMENT_SHADERS, > - HW_FEATURE_TEST4_DATUM_MODE, > - HW_FEATURE_NEXT_INSTRUCTION_TYPE, > - HW_FEATURE_BRNDOUT_KILL, > - HW_FEATURE_WARPING, > HW_FEATURE_V4, > HW_FEATURE_FLUSH_REDUCTION, > HW_FEATURE_PROTECTED_MODE, > @@ -42,27 +24,15 @@ enum panfrost_hw_feature { > }; > > #define hw_features_t600 (\ > - BIT_ULL(HW_FEATURE_LD_ST_LEA_TEX) | \ > - BIT_ULL(HW_FEATURE_LINEAR_FILTER_FLOAT) | \ > BIT_ULL(HW_FEATURE_THREAD_GROUP_SPLIT) | \ > BIT_ULL(HW_FEATURE_V4)) > > #define hw_features_t620 (\ > - BIT_ULL(HW_FEATURE_LD_ST_LEA_TEX) | \ > - BIT_ULL(HW_FEATURE_LINEAR_FILTER_FLOAT) | \ > - BIT_ULL(HW_FEATURE_ATTR_AUTO_TYPE_INFERRAL) | \ > BIT_ULL(HW_FEATURE_THREAD_GROUP_SPLIT) | \ > BIT_ULL(HW_FEATURE_V4)) > > #define hw_features_t720 (\ > - BIT_ULL(HW_FEATURE_32_BIT_UNIFORM_ADDRESS) | \ > - BIT_ULL(HW_FEATURE_ATTR_AUTO_TYPE_INFERRAL) | \ > - BIT_ULL(HW_FEATURE_INTERPIPE_REG_ALIASING) | \ > - BIT_ULL(HW_FEATURE_OPTIMIZED_COVERAGE_MASK) | \ > - BIT_ULL(HW_FEATURE_T7XX_PAIRING_RULES) | \ > BIT_ULL(HW_FEATURE_THREAD_GROUP_SPLIT) | \ > - BIT_ULL(HW_FEATURE_WORKGROUP_ROUND_MULTIPLE_OF_4) | \ > - BIT_ULL(HW_FEATURE_WARPING) | \ > BIT_ULL(HW_FEATURE_V4)) > > > @@ -70,17 +40,6 @@ enum panfrost_hw_feature { > BIT_ULL(HW_FEATURE_JOBCHAIN_DISAMBIGUATION) | \ > BIT_ULL(HW_FEATURE_PWRON_DURING_PWROFF_TRANS) | \ > BIT_ULL(HW_FEATURE_XAFFINITY) | \ > - BIT_ULL(HW_FEATURE_32_BIT_UNIFORM_ADDRESS) | \ > - BIT_ULL(HW_FEATURE_ATTR_AUTO_TYPE_INFERRAL) | \ > - BIT_ULL(HW_FEATURE_BRNDOUT_CC) | \ > - BIT_ULL(HW_FEATURE_LD_ST_LEA_TEX) | \ > - BIT_ULL(HW_FEATURE_LD_ST_TILEBUFFER) | \ > - BIT_ULL(HW_FEATURE_LINEAR_FILTER_FLOAT) | \ > - BIT_ULL(HW_FEATURE_MRT) | \ > - BIT_ULL(HW_FEATURE_MSAA_16X) | \ > - BIT_ULL(HW_FEATURE_OUT_OF_ORDER_EXEC) | \ > - BIT_ULL(HW_FEATURE_T7XX_PAIRING_RULES) | \ > - BIT_ULL(HW_FEATURE_TEST4_DATUM_MODE) | \ > BIT_ULL(HW_FEATURE_THREAD_GROUP_SPLIT)) > > // T860 > @@ -88,19 +47,6 @@ enum panfrost_hw_feature { > BIT_ULL(HW_FEATURE_JOBCHAIN_DISAMBIGUATION) | \ > BIT_ULL(HW_FEATURE_PWRON_DURING_PWROFF_TRANS) | \ > BIT_ULL(HW_FEATURE_XAFFINITY) | \ > - BIT_ULL(HW_FEATURE_32_BIT_UNIFORM_ADDRESS) | \ > - BIT_ULL(HW_FEATURE_ATTR_AUTO_TYPE_INFERRAL) | \ > - BIT_ULL(HW_FEATURE_BRNDOUT_CC) | \ > - BIT_ULL(HW_FEATURE_BRNDOUT_KILL) | \ > - BIT_ULL(HW_FEATURE_LD_ST_LEA_TEX) | \ > - BIT_ULL(HW_FEATURE_LD_ST_TILEBUFFER) | \ > - BIT_ULL(HW_FEATURE_LINEAR_FILTER_FLOAT) | \ > - BIT_ULL(HW_FEATURE_MRT) | \ > - BIT_ULL(HW_FEATURE_MSAA_16X) | \ > - BIT_ULL(HW_FEATURE_NEXT_INSTRUCTION_TYPE) | \ > - BIT_ULL(HW_FEATURE_OUT_OF_ORDER_EXEC) | \ > - BIT_ULL(HW_FEATURE_T7XX_PAIRING_RULES) | \ > - BIT_ULL(HW_FEATURE_TEST4_DATUM_MODE) | \ > BIT_ULL(HW_FEATURE_THREAD_GROUP_SPLIT)) > > #define hw_features_t880 hw_features_t860 > @@ -109,61 +55,18 @@ enum panfrost_hw_feature { > BIT_ULL(HW_FEATURE_JOBCHAIN_DISAMBIGUATION) | \ > BIT_ULL(HW_FEATURE_PWRON_DURING_PWROFF_TRANS) | \ > BIT_ULL(HW_FEATURE_XAFFINITY) | \ > - BIT_ULL(HW_FEATURE_WARPING) | \ > - BIT_ULL(HW_FEATURE_INTERPIPE_REG_ALIASING) | \ > - BIT_ULL(HW_FEATURE_32_BIT_UNIFORM_ADDRESS) | \ > - BIT_ULL(HW_FEATURE_ATTR_AUTO_TYPE_INFERRAL) | \ > - BIT_ULL(HW_FEATURE_BRNDOUT_CC) | \ > - BIT_ULL(HW_FEATURE_BRNDOUT_KILL) | \ > - BIT_ULL(HW_FEATURE_LD_ST_LEA_TEX) | \ > - BIT_ULL(HW_FEATURE_LD_ST_TILEBUFFER) | \ > - BIT_ULL(HW_FEATURE_LINEAR_FILTER_FLOAT) | \ > - BIT_ULL(HW_FEATURE_MRT) | \ > - BIT_ULL(HW_FEATURE_NEXT_INSTRUCTION_TYPE) | \ > - BIT_ULL(HW_FEATURE_OUT_OF_ORDER_EXEC) | \ > - BIT_ULL(HW_FEATURE_T7XX_PAIRING_RULES) | \ > - BIT_ULL(HW_FEATURE_TEST4_DATUM_MODE) | \ > BIT_ULL(HW_FEATURE_THREAD_GROUP_SPLIT)) > > #define hw_features_t820 (\ > BIT_ULL(HW_FEATURE_JOBCHAIN_DISAMBIGUATION) | \ > BIT_ULL(HW_FEATURE_PWRON_DURING_PWROFF_TRANS) | \ > BIT_ULL(HW_FEATURE_XAFFINITY) | \ > - BIT_ULL(HW_FEATURE_WARPING) | \ > - BIT_ULL(HW_FEATURE_INTERPIPE_REG_ALIASING) | \ > - BIT_ULL(HW_FEATURE_32_BIT_UNIFORM_ADDRESS) | \ > - BIT_ULL(HW_FEATURE_ATTR_AUTO_TYPE_INFERRAL) | \ > - BIT_ULL(HW_FEATURE_BRNDOUT_CC) | \ > - BIT_ULL(HW_FEATURE_BRNDOUT_KILL) | \ > - BIT_ULL(HW_FEATURE_LD_ST_LEA_TEX) | \ > - BIT_ULL(HW_FEATURE_LD_ST_TILEBUFFER) | \ > - BIT_ULL(HW_FEATURE_LINEAR_FILTER_FLOAT) | \ > - BIT_ULL(HW_FEATURE_MRT) | \ > - BIT_ULL(HW_FEATURE_NEXT_INSTRUCTION_TYPE) | \ > - BIT_ULL(HW_FEATURE_OUT_OF_ORDER_EXEC) | \ > - BIT_ULL(HW_FEATURE_T7XX_PAIRING_RULES) | \ > - BIT_ULL(HW_FEATURE_TEST4_DATUM_MODE) | \ > BIT_ULL(HW_FEATURE_THREAD_GROUP_SPLIT)) > > #define hw_features_g71 (\ > BIT_ULL(HW_FEATURE_JOBCHAIN_DISAMBIGUATION) | \ > BIT_ULL(HW_FEATURE_PWRON_DURING_PWROFF_TRANS) | \ > BIT_ULL(HW_FEATURE_XAFFINITY) | \ > - BIT_ULL(HW_FEATURE_WARPING) | \ > - BIT_ULL(HW_FEATURE_INTERPIPE_REG_ALIASING) | \ > - BIT_ULL(HW_FEATURE_32_BIT_UNIFORM_ADDRESS) | \ > - BIT_ULL(HW_FEATURE_ATTR_AUTO_TYPE_INFERRAL) | \ > - BIT_ULL(HW_FEATURE_BRNDOUT_CC) | \ > - BIT_ULL(HW_FEATURE_BRNDOUT_KILL) | \ > - BIT_ULL(HW_FEATURE_LD_ST_LEA_TEX) | \ > - BIT_ULL(HW_FEATURE_LD_ST_TILEBUFFER) | \ > - BIT_ULL(HW_FEATURE_LINEAR_FILTER_FLOAT) | \ > - BIT_ULL(HW_FEATURE_MRT) | \ > - BIT_ULL(HW_FEATURE_MSAA_16X) | \ > - BIT_ULL(HW_FEATURE_NEXT_INSTRUCTION_TYPE) | \ > - BIT_ULL(HW_FEATURE_OUT_OF_ORDER_EXEC) | \ > - BIT_ULL(HW_FEATURE_T7XX_PAIRING_RULES) | \ > - BIT_ULL(HW_FEATURE_TEST4_DATUM_MODE) | \ > BIT_ULL(HW_FEATURE_THREAD_GROUP_SPLIT) | \ > BIT_ULL(HW_FEATURE_FLUSH_REDUCTION) | \ > BIT_ULL(HW_FEATURE_PROTECTED_MODE) | \ > @@ -173,21 +76,6 @@ enum panfrost_hw_feature { > BIT_ULL(HW_FEATURE_JOBCHAIN_DISAMBIGUATION) | \ > BIT_ULL(HW_FEATURE_PWRON_DURING_PWROFF_TRANS) | \ > BIT_ULL(HW_FEATURE_XAFFINITY) | \ > - BIT_ULL(HW_FEATURE_WARPING) | \ > - BIT_ULL(HW_FEATURE_INTERPIPE_REG_ALIASING) | \ > - BIT_ULL(HW_FEATURE_32_BIT_UNIFORM_ADDRESS) | \ > - BIT_ULL(HW_FEATURE_ATTR_AUTO_TYPE_INFERRAL) | \ > - BIT_ULL(HW_FEATURE_BRNDOUT_CC) | \ > - BIT_ULL(HW_FEATURE_BRNDOUT_KILL) | \ > - BIT_ULL(HW_FEATURE_LD_ST_LEA_TEX) | \ > - BIT_ULL(HW_FEATURE_LD_ST_TILEBUFFER) | \ > - BIT_ULL(HW_FEATURE_LINEAR_FILTER_FLOAT) | \ > - BIT_ULL(HW_FEATURE_MRT) | \ > - BIT_ULL(HW_FEATURE_MSAA_16X) | \ > - BIT_ULL(HW_FEATURE_NEXT_INSTRUCTION_TYPE) | \ > - BIT_ULL(HW_FEATURE_OUT_OF_ORDER_EXEC) | \ > - BIT_ULL(HW_FEATURE_T7XX_PAIRING_RULES) | \ > - BIT_ULL(HW_FEATURE_TEST4_DATUM_MODE) | \ > BIT_ULL(HW_FEATURE_THREAD_GROUP_SPLIT) | \ > BIT_ULL(HW_FEATURE_FLUSH_REDUCTION) | \ > BIT_ULL(HW_FEATURE_PROTECTED_MODE) | \ > @@ -198,21 +86,6 @@ enum panfrost_hw_feature { > BIT_ULL(HW_FEATURE_JOBCHAIN_DISAMBIGUATION) | \ > BIT_ULL(HW_FEATURE_PWRON_DURING_PWROFF_TRANS) | \ > BIT_ULL(HW_FEATURE_XAFFINITY) | \ > - BIT_ULL(HW_FEATURE_WARPING) | \ > - BIT_ULL(HW_FEATURE_INTERPIPE_REG_ALIASING) | \ > - BIT_ULL(HW_FEATURE_32_BIT_UNIFORM_ADDRESS) | \ > - BIT_ULL(HW_FEATURE_ATTR_AUTO_TYPE_INFERRAL) | \ > - BIT_ULL(HW_FEATURE_BRNDOUT_CC) | \ > - BIT_ULL(HW_FEATURE_BRNDOUT_KILL) | \ > - BIT_ULL(HW_FEATURE_LD_ST_LEA_TEX) | \ > - BIT_ULL(HW_FEATURE_LD_ST_TILEBUFFER) | \ > - BIT_ULL(HW_FEATURE_LINEAR_FILTER_FLOAT) | \ > - BIT_ULL(HW_FEATURE_MRT) | \ > - BIT_ULL(HW_FEATURE_MSAA_16X) | \ > - BIT_ULL(HW_FEATURE_NEXT_INSTRUCTION_TYPE) | \ > - BIT_ULL(HW_FEATURE_OUT_OF_ORDER_EXEC) | \ > - BIT_ULL(HW_FEATURE_T7XX_PAIRING_RULES) | \ > - BIT_ULL(HW_FEATURE_TEST4_DATUM_MODE) | \ > BIT_ULL(HW_FEATURE_THREAD_GROUP_SPLIT) | \ > BIT_ULL(HW_FEATURE_FLUSH_REDUCTION) | \ > BIT_ULL(HW_FEATURE_PROTECTED_MODE) | \ > @@ -223,21 +96,6 @@ enum panfrost_hw_feature { > BIT_ULL(HW_FEATURE_JOBCHAIN_DISAMBIGUATION) | \ > BIT_ULL(HW_FEATURE_PWRON_DURING_PWROFF_TRANS) | \ > BIT_ULL(HW_FEATURE_XAFFINITY) | \ > - BIT_ULL(HW_FEATURE_WARPING) | \ > - BIT_ULL(HW_FEATURE_INTERPIPE_REG_ALIASING) | \ > - BIT_ULL(HW_FEATURE_32_BIT_UNIFORM_ADDRESS) | \ > - BIT_ULL(HW_FEATURE_ATTR_AUTO_TYPE_INFERRAL) | \ > - BIT_ULL(HW_FEATURE_BRNDOUT_CC) | \ > - BIT_ULL(HW_FEATURE_BRNDOUT_KILL) | \ > - BIT_ULL(HW_FEATURE_LD_ST_LEA_TEX) | \ > - BIT_ULL(HW_FEATURE_LD_ST_TILEBUFFER) | \ > - BIT_ULL(HW_FEATURE_LINEAR_FILTER_FLOAT) | \ > - BIT_ULL(HW_FEATURE_MRT) | \ > - BIT_ULL(HW_FEATURE_MSAA_16X) | \ > - BIT_ULL(HW_FEATURE_NEXT_INSTRUCTION_TYPE) | \ > - BIT_ULL(HW_FEATURE_OUT_OF_ORDER_EXEC) | \ > - BIT_ULL(HW_FEATURE_T7XX_PAIRING_RULES) | \ > - BIT_ULL(HW_FEATURE_TEST4_DATUM_MODE) | \ > BIT_ULL(HW_FEATURE_THREAD_GROUP_SPLIT) | \ > BIT_ULL(HW_FEATURE_FLUSH_REDUCTION) | \ > BIT_ULL(HW_FEATURE_PROTECTED_MODE) | \ > @@ -248,21 +106,6 @@ enum panfrost_hw_feature { > BIT_ULL(HW_FEATURE_JOBCHAIN_DISAMBIGUATION) | \ > BIT_ULL(HW_FEATURE_PWRON_DURING_PWROFF_TRANS) | \ > BIT_ULL(HW_FEATURE_XAFFINITY) | \ > - BIT_ULL(HW_FEATURE_WARPING) | \ > - BIT_ULL(HW_FEATURE_INTERPIPE_REG_ALIASING) | \ > - BIT_ULL(HW_FEATURE_32_BIT_UNIFORM_ADDRESS) | \ > - BIT_ULL(HW_FEATURE_ATTR_AUTO_TYPE_INFERRAL) | \ > - BIT_ULL(HW_FEATURE_BRNDOUT_CC) | \ > - BIT_ULL(HW_FEATURE_BRNDOUT_KILL) | \ > - BIT_ULL(HW_FEATURE_LD_ST_LEA_TEX) | \ > - BIT_ULL(HW_FEATURE_LD_ST_TILEBUFFER) | \ > - BIT_ULL(HW_FEATURE_LINEAR_FILTER_FLOAT) | \ > - BIT_ULL(HW_FEATURE_MRT) | \ > - BIT_ULL(HW_FEATURE_MSAA_16X) | \ > - BIT_ULL(HW_FEATURE_NEXT_INSTRUCTION_TYPE) | \ > - BIT_ULL(HW_FEATURE_OUT_OF_ORDER_EXEC) | \ > - BIT_ULL(HW_FEATURE_T7XX_PAIRING_RULES) | \ > - BIT_ULL(HW_FEATURE_TEST4_DATUM_MODE) | \ > BIT_ULL(HW_FEATURE_THREAD_GROUP_SPLIT) | \ > BIT_ULL(HW_FEATURE_FLUSH_REDUCTION) | \ > BIT_ULL(HW_FEATURE_PROTECTED_MODE) | \ > @@ -276,21 +119,6 @@ enum panfrost_hw_feature { > BIT_ULL(HW_FEATURE_JOBCHAIN_DISAMBIGUATION) | \ > BIT_ULL(HW_FEATURE_PWRON_DURING_PWROFF_TRANS) | \ > BIT_ULL(HW_FEATURE_XAFFINITY) | \ > - BIT_ULL(HW_FEATURE_WARPING) | \ > - BIT_ULL(HW_FEATURE_INTERPIPE_REG_ALIASING) | \ > - BIT_ULL(HW_FEATURE_32_BIT_UNIFORM_ADDRESS) | \ > - BIT_ULL(HW_FEATURE_ATTR_AUTO_TYPE_INFERRAL) | \ > - BIT_ULL(HW_FEATURE_BRNDOUT_CC) | \ > - BIT_ULL(HW_FEATURE_BRNDOUT_KILL) | \ > - BIT_ULL(HW_FEATURE_LD_ST_LEA_TEX) | \ > - BIT_ULL(HW_FEATURE_LD_ST_TILEBUFFER) | \ > - BIT_ULL(HW_FEATURE_LINEAR_FILTER_FLOAT) | \ > - BIT_ULL(HW_FEATURE_MRT) | \ > - BIT_ULL(HW_FEATURE_MSAA_16X) | \ > - BIT_ULL(HW_FEATURE_NEXT_INSTRUCTION_TYPE) | \ > - BIT_ULL(HW_FEATURE_OUT_OF_ORDER_EXEC) | \ > - BIT_ULL(HW_FEATURE_T7XX_PAIRING_RULES) | \ > - BIT_ULL(HW_FEATURE_TEST4_DATUM_MODE) | \ > BIT_ULL(HW_FEATURE_THREAD_GROUP_SPLIT) | \ > BIT_ULL(HW_FEATURE_FLUSH_REDUCTION) | \ > BIT_ULL(HW_FEATURE_PROTECTED_MODE) | \ >