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[88.21.206.101]) by smtp.gmail.com with ESMTPSA id 125sm29216095wmc.27.2020.12.13.16.29.48 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 13 Dec 2020 16:29:48 -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=tt06LM3DuxKu6Qef7nlo0yLmiXQmn95eCC9pK0eUgNN+JnUkQsG5FK03znaRuKug3o aK6sYemcKbRWT9lAShDbX/xFVV/k5mzdQV2ZxMH24rMmANeLVVGIxFtl4/IGpPTwRfCQ 4umJFXLxuZAshAFYdgr0XdyOnKx8cFv9snAYO8LhQWzybvyM27x2AQWRx5RURJNL+Qht okIBaENaPNWpHQ7HWC7FL73pZ9fPsRQ7bNkot0Yugf6nl5sPJyBNACvNjp3zzrGnY/oD obiyatNVwg+EvfjpqmEV3L2GJ0WQiZ4j1VcprzEJgpkg2QNxnuZEsHcOWvF1MhNywAPX 4hbQ== 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=RjbyIsEnJtyz0Jf49EkVwVcR8LbVlQ70Ak/u2/OPnorZOrhTxdcOTXZIur4GGBJ/D8 XcZMFPN8vhnP1jJd68SPFDSIr8AUSQya4osFtINm89oAMSqyDR2r6XCUstIZD4DaLVhF SNj2qfGCEw9f92BXNWOvSMV5jJgkeW7hThDVbetf760ls33IpxEWs1wJd2WvFQgZb/zc mnYA92J3Q8g+m5sJXSQ3aDQFCYWBUZehBRxjUa6vXwCU4BcwvHUhYhDFvToefE37NG1z FaL8qoC7PxhHsNKzQKwx/OZA8cQM189L5hHbpD1woZW4eoFu46QhozZYsPRGELUJrYqK lnfA== X-Gm-Message-State: AOAM5313XlGOMdXTjT4Y2oJShBZjYIDDKfRfLhDRngkd5pzxbI00tMiJ 6K5tHjn8PNHc24C0dvPqOvE= X-Google-Smtp-Source: ABdhPJzWIqF3EENdPwL1HfevYdXVo32knI9m0ZMPgWZQdIBBZ0Br+RrHtJqFIScNlUP1FSHWgsgHCw== X-Received: by 2002:a1c:b407:: with SMTP id d7mr25361706wmf.34.1607905789457; Sun, 13 Dec 2020 16:29:49 -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: Laurent Vivier , Huacai Chen , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Jiaxun Yang , Richard Henderson Subject: [PATCH v5 4/7] linux-user/elfload: Introduce MIPS GET_FEATURE_REG_SET() macro Date: Mon, 14 Dec 2020 01:29:25 +0100 Message-Id: <20201214002928.343686-5-f4bug@amsat.org> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20201214002928.343686-1-f4bug@amsat.org> References: <20201214002928.343686-1-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