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[83.52.172.117]) by smtp.gmail.com with ESMTPSA id b63sm7974074wme.9.2020.10.17.07.04.09 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 17 Oct 2020 07:04:09 -0700 (PDT) From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= To: qemu-devel@nongnu.org Subject: [PULL 18/44] target/mips/cpu: Calculate the CP0 timer period using the CPU frequency Date: Sat, 17 Oct 2020 16:02:17 +0200 Message-Id: <20201017140243.1078718-19-f4bug@amsat.org> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20201017140243.1078718-1-f4bug@amsat.org> References: <20201017140243.1078718-1-f4bug@amsat.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=2a00:1450:4864:20::431; envelope-from=philippe.mathieu.daude@gmail.com; helo=mail-wr1-x431.google.com X-detected-operating-system: by eggs.gnu.org: No matching host in p0f cache. That's all we know. X-Spam_score_int: -14 X-Spam_score: -1.5 X-Spam_bar: - X-Spam_report: (-1.5 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FORGED_FROMDOMAIN=0.25, FREEMAIL_FROM=0.001, HEADER_FROM_DIFFERENT_DOMAINS=0.25, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Aleksandar Rikalo , Paul Burton , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , =?UTF-8?q?Herv=C3=A9=20Poussineau?= , Huacai Chen , Aurelien Jarno Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" The CP0 timer period is a function of the CPU frequency. Start using the default values, which will be replaced by properties in the next commits. Signed-off-by: Philippe Mathieu-Daudé Reviewed-by: Jiaxun Yang Message-Id: <20201012095804.3335117-10-f4bug@amsat.org> --- target/mips/cpu.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/target/mips/cpu.c b/target/mips/cpu.c index 84b727fefa8..46188139b7b 100644 --- a/target/mips/cpu.c +++ b/target/mips/cpu.c @@ -144,13 +144,13 @@ static void mips_cpu_disas_set_info(CPUState *s, disassemble_info *info) */ #define CPU_FREQ_HZ_DEFAULT 200000000 #define CP0_COUNT_RATE_DEFAULT 2 -#define TIMER_PERIOD_DEFAULT 10 /* 1 / (CPU_FREQ_HZ / CP0_COUNT_RATE) */ static void mips_cp0_period_set(MIPSCPU *cpu) { CPUMIPSState *env = &cpu->env; - env->cp0_count_ns = TIMER_PERIOD_DEFAULT; + env->cp0_count_ns = muldiv64(NANOSECONDS_PER_SECOND, CP0_COUNT_RATE_DEFAULT, + CPU_FREQ_HZ_DEFAULT); } static void mips_cpu_realizefn(DeviceState *dev, Error **errp) -- 2.26.2