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[88.21.206.101]) by smtp.gmail.com with ESMTPSA id b13sm22115944wrt.31.2020.12.13.16.32.31 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 13 Dec 2020 16:32:31 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=sender:from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=7+gpz5nBbN/ysI0JfpfLjTz+oao1gnIR+w+URSQBzdk=; b=hsXHV4AFOOIdXtetkHTd4UEGVYrsSP6f6ckFnsp0Foq3UPs8aqLars5N+Fp3W+o8OU /1D3qP8zc0PWsxn+6rJ2xDu7nysW4KXwtjWZs4DRXTnvX1HWMDZ6ohSOZP/xbsLvOxTr +taSwho4sPKef7m3FIzM333tSTqLBM8KWrIvH3MwYqDsGZ79V1hYEJ/B7whI6a1lXpDy RHUywAdp1fwzv9SiTxpdPQnuwNN4jG/hnkS5zfb/WUSJHdsCVsKMQJzRCEQfDgk6pcGg 9NcjEUt9WApTQtAauXt8McXZc2nKzEUuErUfPwc2qsP8En98CUN5aDGklo1GHrBw3JAv WfUg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:from:to:cc:subject:date:message-id :in-reply-to:references:mime-version:content-transfer-encoding; bh=7+gpz5nBbN/ysI0JfpfLjTz+oao1gnIR+w+URSQBzdk=; b=rE+8dd+Y5fx+EfIG+MvTHQmgOANMclZQhewtK4WOo8BXbqbS+kKr6Y69UtmV4rm9Eq apA9NibnfAIO4T6x5agbaXRROAsVR3JhSQmYIZnAWauAAaI+M59CC/A8lQ9AHuAKyJJH WWQmZrJSzpCMSwkODUd/Vlwd7TMkWNNnmgqCkPBpgFq/OsoQNZlnZMFW0mVgkcZDxZ2X 4Ew6mhx/30JvacqjVxMSv9nkgSQzmStmxssr9C9wWSRz93hCPWrRAIINLH8FEHcLV1jo S6tTmKIFZYawJHJMRP4CmB9VRD8tTggxOonere5QWYP82i3T88lxk58Y6NgphgoAowij FAPg== X-Gm-Message-State: AOAM531FOKlDNb3+19/4XCGApZqHnj1d/R+LO8fFMn55APWu/Vq9VhCf X3oBwVnKSstqTs5HMbgiLmo= X-Google-Smtp-Source: ABdhPJyN8ZniYuDR8O8KBRqxIhmMOZthZ+/wPlv1jarzV1G0WaPo+zPVMvnFVZyA6z80SUMcz3jjog== X-Received: by 2002:a1c:151:: with SMTP id 78mr25525305wmb.24.1607905952453; Sun, 13 Dec 2020 16:32:32 -0800 (PST) Sender: =?UTF-8?Q?Philippe_Mathieu=2DDaud=C3=A9?= From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= To: qemu-devel@nongnu.org Cc: Jiaxun Yang , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Huacai Chen , Laurent Vivier , Richard Henderson Subject: [PATCH v5 3/6] linux-user/elfload: Introduce MIPS GET_FEATURE_REG_SET() macro Date: Mon, 14 Dec 2020 01:32:12 +0100 Message-Id: <20201214003215.344522-4-f4bug@amsat.org> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20201214003215.344522-1-f4bug@amsat.org> References: <20201214003215.344522-1-f4bug@amsat.org> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-ZohoMail-DKIM: pass (identity @gmail.com) ISA features are usually denoted in read-only bits from CPU registers. Add the GET_FEATURE_REG_SET() macro which checks if a CPU register has bits set. Use the macro to check for MSA (which sets the MSAP bit of the Config3 register when the ASE implementation is present). Reviewed-by: Richard Henderson Signed-off-by: Philippe Mathieu-Daud=C3=A9 --- linux-user/elfload.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/linux-user/elfload.c b/linux-user/elfload.c index 0e1d7e7677c..b7c6d30723a 100644 --- a/linux-user/elfload.c +++ b/linux-user/elfload.c @@ -992,17 +992,21 @@ enum { #define GET_FEATURE_INSN(_flag, _hwcap) \ do { if (cpu->env.insn_flags & (_flag)) { hwcaps |=3D _hwcap; } } whil= e (0) =20 +#define GET_FEATURE_REG_SET(_reg, _mask, _hwcap) \ + do { if (cpu->env._reg & (_mask)) { hwcaps |=3D _hwcap; } } while (0) + static uint32_t get_elf_hwcap(void) { MIPSCPU *cpu =3D MIPS_CPU(thread_cpu); uint32_t hwcaps =3D 0; =20 GET_FEATURE_INSN(ISA_MIPS32R6 | ISA_MIPS64R6, HWCAP_MIPS_R6); - GET_FEATURE_INSN(ASE_MSA, HWCAP_MIPS_MSA); + GET_FEATURE_REG_SET(CP0_Config3, 1 << CP0C3_MSAP, HWCAP_MIPS_MSA); =20 return hwcaps; } =20 +#undef GET_FEATURE_REG_SET #undef GET_FEATURE_INSN =20 #endif /* TARGET_MIPS */ --=20 2.26.2