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([2804:431:c7c6:3a18:8059:d9aa:a8b3:7e6b]) by smtp.gmail.com with ESMTPSA id bb33-20020a056820162100b0035e71a9ed3esm3659617oob.38.2022.04.27.13.51.34 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 27 Apr 2022 13:51:36 -0700 (PDT) Message-ID: Date: Wed, 27 Apr 2022 17:51:33 -0300 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.8.0 Subject: Re: [PATCH] linux-user: Add PowerPC ISA 3.1 and MMA to hwcap Content-Language: en-US To: Joel Stanley , Laurent Vivier , lucas.araujo@eldorado.org.br References: <20220427064204.373027-1-joel@jms.id.au> From: Daniel Henrique Barboza In-Reply-To: <20220427064204.373027-1-joel@jms.id.au> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Received-SPF: pass client-ip=2607:f8b0:4864:20::329; envelope-from=danielhb413@gmail.com; helo=mail-ot1-x329.google.com X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_ENVFROM_END_DIGIT=0.25, FREEMAIL_FROM=0.001, NICE_REPLY_A=-0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Michael Ellerman , qemu-ppc@nongnu.org, qemu-devel@nongnu.org Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On 4/27/22 03:42, Joel Stanley wrote: > These are new hwcap bits added for power10. > > Signed-off-by: Joel Stanley > --- > MMA support for TCG is on the list so I think it makes sense for this to > land after those are merged. I believe you mean this series: [RFC PATCH 0/7] VSX MMA Implementation In that case I'll queue this patch together with it. Thanks, Daniel > > I tested my patch with this program: > > https://github.com/shenki/p10_tests > > $ qemu-ppc64le -cpu power10 -L ~/ppc64le/ ./test -c > HWCAP: 0x58000580 HWCAP2: 0x8ee60000 > ISAv3.1: Yes > MMA: Yes > > $ qemu-ppc64le -cpu power9 -L ~/ppc64le/ ./test -c > HWCAP: 0x58000580 HWCAP2: 0x8ee00000 > ISAv3.1: No > MMA: No > > linux-user/elfload.c | 4 ++++ > 1 file changed, 4 insertions(+) > > diff --git a/linux-user/elfload.c b/linux-user/elfload.c > index 61063fd974e5..0908692e62b3 100644 > --- a/linux-user/elfload.c > +++ b/linux-user/elfload.c > @@ -779,6 +779,8 @@ enum { > QEMU_PPC_FEATURE2_DARN = 0x00200000, /* darn random number insn */ > QEMU_PPC_FEATURE2_SCV = 0x00100000, /* scv syscall */ > QEMU_PPC_FEATURE2_HTM_NO_SUSPEND = 0x00080000, /* TM w/o suspended state */ > + QEMU_PPC_FEATURE2_ARCH_3_1 = 0x00040000, /* ISA 3.1 */ > + QEMU_PPC_FEATURE2_MMA = 0x00020000, /* Matrix-Multiply Assist */ > }; > > #define ELF_HWCAP get_elf_hwcap() > @@ -836,6 +838,8 @@ static uint32_t get_elf_hwcap2(void) > QEMU_PPC_FEATURE2_VEC_CRYPTO); > GET_FEATURE2(PPC2_ISA300, QEMU_PPC_FEATURE2_ARCH_3_00 | > QEMU_PPC_FEATURE2_DARN | QEMU_PPC_FEATURE2_HAS_IEEE128); > + GET_FEATURE2(PPC2_ISA310, QEMU_PPC_FEATURE2_ARCH_3_1 | > + QEMU_PPC_FEATURE2_MMA); > > #undef GET_FEATURE > #undef GET_FEATURE2