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 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 1A722ECAAA1 for ; Mon, 31 Oct 2022 19:40:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=hYUyQwtegGF5RvgFmNXBM5PKXQjZ8HRCAZ4qNJeGrcY=; b=ysO8aXEKL3ryI2 2KpKQlVUkHyp83NpFDfBawBLY4arYOcijY1EJUnLNZQI67zuf6Wn12FICaONC7BCLHlifQfSU1xrT PQjlFijTMBRxobkMQj5n+vgSTvb+kzCSg6lblyiAcaEEj6fslbEYjfIDwtH99g/luHlmOtKMeUvzh eg8834T+aqxrBbAqmRiXLNY93ZpHAa6R4eYGeIYaUuUQdgXoJ89D0h6FC0PMYZIoog1ZxcJaDLn+m LDV+u8YWRptRe0UQAJ9EYiTav0W/HdL1tYxGlBdkpStdt0cns79Od8a9YcyUoWxPzxgVZsP4L0tYY VaHrmw3OzhJxPQjmZNiw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1opadI-00EKAU-PQ; Mon, 31 Oct 2022 19:39:42 +0000 Received: from mail-wm1-x32f.google.com ([2a00:1450:4864:20::32f]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1opad7-00EJzv-QY for linux-arm-kernel@lists.infradead.org; Mon, 31 Oct 2022 19:39:32 +0000 Received: by mail-wm1-x32f.google.com with SMTP id n39-20020a05600c3ba700b003cf71011cddso10142wms.1 for ; Mon, 31 Oct 2022 12:39:27 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=K0xd/Nzdp7P6ZAlPXcv/MnRQejFmKk9KivjxiUT87Lw=; b=exhOSdIIUNv9Tua2tPuM1OWNhocqe/CodfQEZM7LbgSQ7U9QHrE0p6pYWzkiGi0XDg +6Z12OlKlOLb9I8vjWxLea4nXxGht0Z5a0dqitvdY7y6zwlVHkn86LOzoq4JATbPHWDF t1gHPQNh7ED1OzgVaSmdVgjdbIx/Ya0UdBBkgOq1IzkwoZMa2UnYxbWcZWr3B6i9DXI8 ZfgrhDJvgp3TJSnsgsZa/gDy+edL+Gcta3NcvsOoOkd5/4l2ngiYoF/stPO/25iDRMA+ aQ0JFJ6GC1rcQ43kcxep2IcX473x1Uw4fUsO33eDoGJ+juZCr7c5YO1XmV+1tKtkOGcD 9tHQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=K0xd/Nzdp7P6ZAlPXcv/MnRQejFmKk9KivjxiUT87Lw=; b=q1cpw53yxZuuITT2tmYRF/kNV8vCa99L7ZVKMyaf13H/R3NecRotSlIjxSO/YJygeG Sd7m2xKoOrtQHTzwNWKWBHwDSq3ilKdbauc55921exY5OzdZ3R/r8SMZOpLBVdlUe49T EhjeLrdYXUvEt+Z2ViYxDuVLvX46cCbE7tn950gOJDgEBHEGn4+W6PELmegcnoDN8sCu SPRwvagoPBwLK3MzZS7/UcX26NsHLZUCdjnxbzglTptk+35m1YAUxHAAj5PMmu3rN1lY Y3qmt9xyNgfiof+ewXuQWN28gefvWHvVtUAj/OY9otOq/porqWyp+9LArGH8/UnRF/8K vWDg== X-Gm-Message-State: ACrzQf1TgAf1U9ZwWeP7S1sB/57hVNTi6AjwbfYAAn9g/GWSpNw531ro VjDwXUKyCvEsjpO8rDKCNt6qVncxYFTrZ/tg X-Google-Smtp-Source: AMsMyM4Y3kWgI8Zs1DywkZ7JAdtiI0i7JajrBPiIUFObXa4nuH+p9B4SGDBmuWB0HRiBfjP+jjiJzQ== X-Received: by 2002:a05:600c:6885:b0:3bd:d782:623c with SMTP id fn5-20020a05600c688500b003bdd782623cmr9189463wmb.102.1667245166079; Mon, 31 Oct 2022 12:39:26 -0700 (PDT) Received: from localhost.localdomain ([2a02:908:4f6:d280::9a6]) by smtp.gmail.com with ESMTPSA id h9-20020a05600c414900b003b49ab8ff53sm8216806wmm.8.2022.10.31.12.39.25 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 31 Oct 2022 12:39:25 -0700 (PDT) From: Ao Zhong To: Harry Wentland , Leo Li , Rodrigo Siqueira , Arnd Bergmann , Nathan Chancellor , Alex Deucher , Stephen Rothwell , =?UTF-8?q?Christian=20K=C3=B6nig?= Cc: amd-gfx@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org, Ao Zhong Subject: [PATCH v4 1/1] drm/amd/display: add DCN support for ARM64 Date: Mon, 31 Oct 2022 20:37:40 +0100 Message-Id: <20221031193738.23538-2-hacc1225@gmail.com> X-Mailer: git-send-email 2.37.4 In-Reply-To: <20221031193738.23538-1-hacc1225@gmail.com> References: <20221031193738.23538-1-hacc1225@gmail.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20221031_123929_911759_066B6BE1 X-CRM114-Status: GOOD ( 14.40 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org After moving all FPU code to the DML folder, we can enable DCN support for the ARM64 platform. Remove the -mgeneral-regs-only CFLAG from the code in the DML folder that needs to use hardware FPU, and add a control mechanism for ARM Neon. Signed-off-by: Ao Zhong --- drivers/gpu/drm/amd/display/Kconfig | 3 ++- .../gpu/drm/amd/display/amdgpu_dm/dc_fpu.c | 6 ++++++ drivers/gpu/drm/amd/display/dc/dml/Makefile | 20 +++++++++++++++---- 3 files changed, 24 insertions(+), 5 deletions(-) diff --git a/drivers/gpu/drm/amd/display/Kconfig b/drivers/gpu/drm/amd/display/Kconfig index 0142affcdaa3..843a55a6a3ac 100644 --- a/drivers/gpu/drm/amd/display/Kconfig +++ b/drivers/gpu/drm/amd/display/Kconfig @@ -6,7 +6,8 @@ config DRM_AMD_DC bool "AMD DC - Enable new display engine" default y select SND_HDA_COMPONENT if SND_HDA_CORE - select DRM_AMD_DC_DCN if (X86 || PPC64) + # !CC_IS_CLANG: https://github.com/ClangBuiltLinux/linux/issues/1752 + select DRM_AMD_DC_DCN if (X86 || PPC64 || (ARM64 && KERNEL_MODE_NEON && !CC_IS_CLANG)) help Choose this option if you want to use the new display engine support for AMDGPU. This adds required support for Vega and diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/dc_fpu.c b/drivers/gpu/drm/amd/display/amdgpu_dm/dc_fpu.c index ab0c6d191038..1743ca0a3641 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/dc_fpu.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/dc_fpu.c @@ -31,6 +31,8 @@ #elif defined(CONFIG_PPC64) #include #include +#elif defined(CONFIG_ARM64) +#include #endif /** @@ -99,6 +101,8 @@ void dc_fpu_begin(const char *function_name, const int line) preempt_disable(); enable_kernel_fp(); } +#elif defined(CONFIG_ARM64) + kernel_neon_begin(); #endif } @@ -136,6 +140,8 @@ void dc_fpu_end(const char *function_name, const int line) disable_kernel_fp(); preempt_enable(); } +#elif defined(CONFIG_ARM64) + kernel_neon_end(); #endif } diff --git a/drivers/gpu/drm/amd/display/dc/dml/Makefile b/drivers/gpu/drm/amd/display/dc/dml/Makefile index d0c6cf61c676..d4e93bed1c8e 100644 --- a/drivers/gpu/drm/amd/display/dc/dml/Makefile +++ b/drivers/gpu/drm/amd/display/dc/dml/Makefile @@ -33,6 +33,10 @@ ifdef CONFIG_PPC64 dml_ccflags := -mhard-float -maltivec endif +ifdef CONFIG_ARM64 +dml_rcflags := -mgeneral-regs-only +endif + ifdef CONFIG_CC_IS_GCC ifeq ($(call cc-ifversion, -lt, 0701, y), y) IS_OLD_GCC = 1 @@ -55,8 +59,6 @@ frame_warn_flag := -Wframe-larger-than=2048 endif CFLAGS_$(AMDDALPATH)/dc/dml/display_mode_lib.o := $(dml_ccflags) - -ifdef CONFIG_DRM_AMD_DC_DCN CFLAGS_$(AMDDALPATH)/dc/dml/display_mode_vba.o := $(dml_ccflags) CFLAGS_$(AMDDALPATH)/dc/dml/dcn10/dcn10_fpu.o := $(dml_ccflags) CFLAGS_$(AMDDALPATH)/dc/dml/dcn20/dcn20_fpu.o := $(dml_ccflags) @@ -88,7 +90,6 @@ CFLAGS_$(AMDDALPATH)/dc/dml/calcs/dcn_calcs.o := $(dml_ccflags) CFLAGS_$(AMDDALPATH)/dc/dml/calcs/dcn_calc_auto.o := $(dml_ccflags) CFLAGS_$(AMDDALPATH)/dc/dml/calcs/dcn_calc_math.o := $(dml_ccflags) -Wno-tautological-compare CFLAGS_REMOVE_$(AMDDALPATH)/dc/dml/display_mode_vba.o := $(dml_rcflags) -CFLAGS_REMOVE_$(AMDDALPATH)/dc/dml/dcn2x/dcn2x.o := $(dml_rcflags) CFLAGS_REMOVE_$(AMDDALPATH)/dc/dml/dcn20/display_mode_vba_20.o := $(dml_rcflags) CFLAGS_REMOVE_$(AMDDALPATH)/dc/dml/dcn20/display_rq_dlg_calc_20.o := $(dml_rcflags) CFLAGS_REMOVE_$(AMDDALPATH)/dc/dml/dcn20/display_mode_vba_20v2.o := $(dml_rcflags) @@ -105,7 +106,18 @@ CFLAGS_REMOVE_$(AMDDALPATH)/dc/dml/dcn32/display_mode_vba_util_32.o := $(dml_rcf CFLAGS_REMOVE_$(AMDDALPATH)/dc/dml/dcn301/dcn301_fpu.o := $(dml_rcflags) CFLAGS_REMOVE_$(AMDDALPATH)/dc/dml/display_mode_lib.o := $(dml_rcflags) CFLAGS_REMOVE_$(AMDDALPATH)/dc/dml/dsc/rc_calc_fpu.o := $(dml_rcflags) -endif +CFLAGS_REMOVE_$(AMDDALPATH)/dc/dml/dcn10/dcn10_fpu.o := $(dml_rcflags) +CFLAGS_REMOVE_$(AMDDALPATH)/dc/dml/dcn20/dcn20_fpu.o := $(dml_rcflags) +CFLAGS_REMOVE_$(AMDDALPATH)/dc/dml/dcn314/display_mode_vba_314.o := $(dml_rcflags) +CFLAGS_REMOVE_$(AMDDALPATH)/dc/dml/dcn314/display_rq_dlg_calc_314.o := $(dml_rcflags) +CFLAGS_REMOVE_$(AMDDALPATH)/dc/dml/dcn314/dcn314_fpu.o := $(dml_rcflags) +CFLAGS_REMOVE_$(AMDDALPATH)/dc/dml/dcn30/dcn30_fpu.o := $(dml_rcflags) +CFLAGS_REMOVE_$(AMDDALPATH)/dc/dml/dcn32/dcn32_fpu.o := $(dml_rcflags) +CFLAGS_REMOVE_$(AMDDALPATH)/dc/dml/dcn321/dcn321_fpu.o := $(dml_rcflags) +CFLAGS_REMOVE_$(AMDDALPATH)/dc/dml/dcn31/dcn31_fpu.o := $(dml_rcflags) +CFLAGS_REMOVE_$(AMDDALPATH)/dc/dml/dcn302/dcn302_fpu.o := $(dml_rcflags) +CFLAGS_REMOVE_$(AMDDALPATH)/dc/dml/dcn303/dcn303_fpu.o := $(dml_rcflags) +CFLAGS_REMOVE_$(AMDDALPATH)/dc/dml/calcs/dcn_calc_math.o := $(dml_rcflags) CFLAGS_$(AMDDALPATH)/dc/dml/dml1_display_rq_dlg_calc.o := $(dml_ccflags) CFLAGS_$(AMDDALPATH)/dc/dml/display_rq_dlg_helpers.o := $(dml_ccflags) CFLAGS_REMOVE_$(AMDDALPATH)/dc/dml/dml1_display_rq_dlg_calc.o := $(dml_rcflags) -- 2.37.4 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel