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 lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (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 5C688C46CD2 for ; Thu, 28 Dec 2023 01:51:55 +0000 (UTC) Authentication-Results: lists.ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=sifive.com header.i=@sifive.com header.a=rsa-sha256 header.s=google header.b=E23lFEjh; dkim-atps=neutral Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4T0s215vSJz3dk2 for ; Thu, 28 Dec 2023 12:51:53 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=sifive.com header.i=@sifive.com header.a=rsa-sha256 header.s=google header.b=E23lFEjh; dkim-atps=neutral Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=sifive.com (client-ip=2607:f8b0:4864:20::42c; helo=mail-pf1-x42c.google.com; envelope-from=samuel.holland@sifive.com; receiver=lists.ozlabs.org) Received: from mail-pf1-x42c.google.com (mail-pf1-x42c.google.com [IPv6:2607:f8b0:4864:20::42c]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4T0rqM1m5Jz30gM for ; Thu, 28 Dec 2023 12:42:39 +1100 (AEDT) Received: by mail-pf1-x42c.google.com with SMTP id d2e1a72fcca58-6d9aa51571fso2622444b3a.3 for ; Wed, 27 Dec 2023 17:42:39 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sifive.com; s=google; t=1703727757; x=1704332557; darn=lists.ozlabs.org; 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=g3Nao5aFqcs14j7uzTeCL4obzFSkk9OE7jeAS4fIG/k=; b=E23lFEjhZfK8VbFQT0i2KLYzUGVCrYME+GFQHKfrIzPeM1hripjac+pTGOvvhsQEBS e7NEg5aLYQSgoCEQkgJCQUqeyK9d8huaW5P9iNWoDzExQ77clbouCbbdZS/n3xL0bkiK Z4JeyHw58WggllpDTXbIuqv+R2hsHGsbvzJ6fNEbOCuM65OsIiUeDCfPYMHFC5P/WARI ZhEnTQCYqCAjiY6QYdAP2L+bJtOKR3VVLz2rN5UuuMUiGylIzB7YY3HOUWGeOdHDxgDP 0E4HDEjz0ARy2NY1p8j6FYs7G6AC3TqQBekjLzgZcR9nteekmDvZ5AQP0hYjfIGoypbb hCiA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1703727757; x=1704332557; 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=g3Nao5aFqcs14j7uzTeCL4obzFSkk9OE7jeAS4fIG/k=; b=cUQLI5sgzyTGMfHiIqmytF3lnLX6p655KQQAYblJoXXM4ET26g2UXZPR+LVH7wj2k4 ITDiJ1QbBeyR0WvDpw9I6BAFIZ1B3YO4FVFyHgUfJ1/MNaFlvcaB6UG5KXgzJpgL+DsQ 5QYdXLG2gmLQ7UFOjumia1H0ncPAU229YFWJh/o4XYPoyHDuXac52fsdydOZCX0FX7LZ N6gobIPYuOa3Axcc1VHRFl8ropZ7M0Pcno0mnYCiBOmYdlWadlbjS9sPg3dRYBcpWZt8 /5YCH2BgZ4CJgUlx9uVPr4qbYgUYUR8sHPZDVctgXlQN/9uEAck5GfKCFmHwaS5DCW5E FRKA== X-Gm-Message-State: AOJu0YzzsabdgktKOWDKYnPUO4tvwS3dpglDGANKRHv7d1eEbGL4NO0h hugf8CFfeN9BqWtoVYT650UTMxhcBecUmw== X-Google-Smtp-Source: AGHT+IF6EDv76QAoc6OEmsqDg21WkjdveqS7R2bB/shYp3RQfsvs+Kqk+D0lgj6bhfU+kuxRie9joQ== X-Received: by 2002:aa7:91d5:0:b0:6d2:95d4:9c37 with SMTP id z21-20020aa791d5000000b006d295d49c37mr9390922pfa.30.1703727756811; Wed, 27 Dec 2023 17:42:36 -0800 (PST) Received: from sw06.internal.sifive.com ([4.53.31.132]) by smtp.gmail.com with ESMTPSA id g24-20020aa78758000000b006d49ed3effasm7335440pfo.63.2023.12.27.17.42.35 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 27 Dec 2023 17:42:36 -0800 (PST) From: Samuel Holland To: linux-arm-kernel@lists.infradead.org, linuxppc-dev@lists.ozlabs.org, x86@kernel.org, linux-riscv@lists.infradead.org, Christoph Hellwig Subject: [PATCH v2 11/14] drm/amd/display: Only use hard-float, not altivec on powerpc Date: Wed, 27 Dec 2023 17:42:01 -0800 Message-ID: <20231228014220.3562640-12-samuel.holland@sifive.com> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20231228014220.3562640-1-samuel.holland@sifive.com> References: <20231228014220.3562640-1-samuel.holland@sifive.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org, amd-gfx@lists.freedesktop.org, Samuel Holland , loongarch@lists.linux.dev Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" From: Michael Ellerman The compiler flags enable altivec, but that is not required; hard-float is sufficient for the code to build and function. Drop altivec from the compiler flags and adjust the enable/disable code to only enable FPU use. Signed-off-by: Michael Ellerman Signed-off-by: Samuel Holland --- Changes in v2: - New patch for v2 drivers/gpu/drm/amd/display/amdgpu_dm/dc_fpu.c | 12 ++---------- drivers/gpu/drm/amd/display/dc/dml/Makefile | 2 +- drivers/gpu/drm/amd/display/dc/dml2/Makefile | 2 +- 3 files changed, 4 insertions(+), 12 deletions(-) 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 4ae4720535a5..0de16796466b 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/dc_fpu.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/dc_fpu.c @@ -92,11 +92,7 @@ void dc_fpu_begin(const char *function_name, const int line) #if defined(CONFIG_X86) || defined(CONFIG_LOONGARCH) kernel_fpu_begin(); #elif defined(CONFIG_PPC64) - if (cpu_has_feature(CPU_FTR_VSX_COMP)) - enable_kernel_vsx(); - else if (cpu_has_feature(CPU_FTR_ALTIVEC_COMP)) - enable_kernel_altivec(); - else if (!cpu_has_feature(CPU_FTR_FPU_UNAVAILABLE)) + if (!cpu_has_feature(CPU_FTR_FPU_UNAVAILABLE)) enable_kernel_fp(); #elif defined(CONFIG_ARM64) kernel_neon_begin(); @@ -125,11 +121,7 @@ void dc_fpu_end(const char *function_name, const int line) #if defined(CONFIG_X86) || defined(CONFIG_LOONGARCH) kernel_fpu_end(); #elif defined(CONFIG_PPC64) - if (cpu_has_feature(CPU_FTR_VSX_COMP)) - disable_kernel_vsx(); - else if (cpu_has_feature(CPU_FTR_ALTIVEC_COMP)) - disable_kernel_altivec(); - else if (!cpu_has_feature(CPU_FTR_FPU_UNAVAILABLE)) + if (!cpu_has_feature(CPU_FTR_FPU_UNAVAILABLE)) disable_kernel_fp(); #elif defined(CONFIG_ARM64) kernel_neon_end(); diff --git a/drivers/gpu/drm/amd/display/dc/dml/Makefile b/drivers/gpu/drm/amd/display/dc/dml/Makefile index 6042a5a6a44f..554c39024a40 100644 --- a/drivers/gpu/drm/amd/display/dc/dml/Makefile +++ b/drivers/gpu/drm/amd/display/dc/dml/Makefile @@ -31,7 +31,7 @@ dml_ccflags := $(dml_ccflags-y) -msse endif ifdef CONFIG_PPC64 -dml_ccflags := -mhard-float -maltivec +dml_ccflags := -mhard-float endif ifdef CONFIG_ARM64 diff --git a/drivers/gpu/drm/amd/display/dc/dml2/Makefile b/drivers/gpu/drm/amd/display/dc/dml2/Makefile index acff3449b8d7..7b51364084b5 100644 --- a/drivers/gpu/drm/amd/display/dc/dml2/Makefile +++ b/drivers/gpu/drm/amd/display/dc/dml2/Makefile @@ -30,7 +30,7 @@ dml2_ccflags := $(dml2_ccflags-y) -msse endif ifdef CONFIG_PPC64 -dml2_ccflags := -mhard-float -maltivec +dml2_ccflags := -mhard-float endif ifdef CONFIG_ARM64 -- 2.42.0