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[88.21.206.101]) by smtp.gmail.com with ESMTPSA id d6sm13679046ejy.114.2020.12.07.14.43.52 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 07 Dec 2020 14:43:53 -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=Cd4kKXgh9x7YLjGpu/9bBPDEkaKfzGTSYOEIyrUdYLRKcQG//reFMCmA4w6s4YFwHq n+5B2YJuKA2vy2F6/wvyMn49obDSpPyp/syPj1dH6JLo33QIJBim7nSm2Lk4pu8lh6Qg pRKE+/w73GnIlmSM4AZto3lHYmIaJZhDfVEjw+umtkRrt+XoGIjZQHTNpohvonAxJv3f SALADJlc5tJghIvjdxQKD/tHhE2XG0GNxNC0D3KVpJsYxCCP0CtJIvtF2tIVVCOSDG8O BW2UyTlYMpY7ckWw23RDs4KE0xYq2PhWKbBAmgTwh982xAdxTliM+sIyLybHNyj8+n/I pk9Q== 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=lR7edUNqw1/kYdNyuMPchFw/Z/wzZON/QT6TO+Xm9V6Fxette8a3PeT07QdF9sfDZs golT4voD0w4ZHwW9oPVvcaqiCoW6bWj8cVqoWm7UT7UMy8u6HvrhQxKLu5amBMKVD/xI DEO4Gtj3E+fVWwNbeUqD0i+rlB/eV8CPtEJI99RwNjM2KhbswUCsh2E5AayrZmf8EE/h dmlOBmPTwp3EGsa7OQkCoAp8wzvnm40BZEv6gIR28mDmpyDB/EgYUq4qVusKr818zBa1 WOGtKPnmr7bxe9t/Y1TZZ7Lw2uKjmllhTb22BTmV6DNPKISqSCB/TFotPlP9jW9eir94 ZzXQ== X-Gm-Message-State: AOAM530GRzMU/BP7+lDMZ+X/JZw7z7WHqasDVoJ8FieAM+FTaZEdfJIo ptyo/Ie93d2oxtIqWt7z6mU= X-Google-Smtp-Source: ABdhPJwDnOwEQcKLlx3X511x8QX5swe8td66qSwvcprh+DBZLCTi8yfn0fl5B/1j9b1WBqXS2cc0yA== X-Received: by 2002:a17:906:4016:: with SMTP id v22mr21385100ejj.266.1607381034137; Mon, 07 Dec 2020 14:43:54 -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 , Aurelien Jarno , Jiaxun Yang , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Aleksandar Rikalo , Huacai Chen , Richard Henderson Subject: [PATCH v4 3/6] linux-user/elfload: Introduce MIPS GET_FEATURE_REG_SET() macro Date: Mon, 7 Dec 2020 23:43:32 +0100 Message-Id: <20201207224335.4030582-4-f4bug@amsat.org> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20201207224335.4030582-1-f4bug@amsat.org> References: <20201207224335.4030582-1-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