From nobody Mon Aug 24 21:52:38 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org ARC-Seal: i=1; a=rsa-sha256; t=1779486855; cv=none; d=zohomail.com; s=zohoarc; b=TjlcYkcRpNOOjq18/WDV9sfuJxuyYSCeNmX6NKtQ7RQav+WJ4uy8BH7/SO7Ik2grDvwo6DOMhkpQTufstn/OFm+dOUBViyCxdFFzUNVr5O6eXoHhkl/TCssdkPenzO1mvJdRQJnN3bvg+tuagZz83KHbbWrqn3ut0rzlhFw+hMI= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1779486855; h=Content-Type:Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:Subject:To:To:Message-Id:Reply-To; bh=jqhx7Bk+BsI2o2uZWqIRl1kpXjeXUlh1GspOIq+3+M0=; b=QSRGtvCyXWDZVBbrkaUYyQ3J5IXKO9wxGIoGizAH269G8/Iue6MA4Yn5JKd91gs4NJWz+nECbVcql+R47F5xnVnSSRi+KX7uOEnOFRfpQgkHsOJVt0E6afy6Z/gsrNDYUDnPVmKi8RgKcnATXFU/DIDP1p8QbYDkeZOnzPwwu2s= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org Return-Path: Received: from lists1p.gnu.org (lists1p.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1779486855885135.13080093080623; Fri, 22 May 2026 14:54:15 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists1p.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1wQXl1-0007nv-PT; Fri, 22 May 2026 17:50:15 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists1p.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1wQXkR-0006si-3l; Fri, 22 May 2026 17:49:43 -0400 Received: from isrv.corpit.ru ([212.248.84.144]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1wQXkP-0002W9-8T; Fri, 22 May 2026 17:49:38 -0400 Received: from tsrv.corpit.ru (tsrv.tls.msk.ru [192.168.177.2]) by isrv.corpit.ru (Postfix) with ESMTP id 570A71AFB5F; Sat, 23 May 2026 00:49:19 +0300 (MSK) Received: from think4mjt.tls.msk.ru (mjtthink.wg.tls.msk.ru [192.168.177.146]) by tsrv.corpit.ru (Postfix) with ESMTP id 7DABC3B71AE; Sat, 23 May 2026 00:49:23 +0300 (MSK) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=tls.msk.ru; s=202602; t=1779486559; bh=7TgTBGNirwcAKQHMK9QxyC+hBOJhJrnx/tbrLDGi1W0=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=jfoa9lpIfyKDOLrBudEPVab0oyMR8xXIhvoxhG4DXTefWn0aoctBQQ8i4y/pkagPu olztZBUvEDNnodwRfAuc/HpQei70IlirKsGVzpXiFGyUJJzjSbEZ7qUfPC3xgdideP eNPq2OowdY28tLK4RL6qYbRo3WNqUAZE9GRBasQ3fAgztTCR3WqM8D3h8wZaAbz2XK qurS0DDp79/cXhmvPF3dkEI6+wmVlySZBeRbTCujR1J86isodlbFaIw+l1Q9zR4GFh +uLXPdNZ3BsVSqcFNFI/CB3dJfDsyBcYYBcAfDhKMYlKRTcqZ5BN//rChxDWq3zMAa yFj0WSVKaBS+A== From: Michael Tokarev To: qemu-devel@nongnu.org Cc: qemu-stable@nongnu.org, Vivien LEGER , Bernhard Beschow , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Michael Tokarev Subject: [Stable-10.2.3 105/149] hw/ppc/e500: fix bus-frequency property hardcoded to zero in CPU FDT node Date: Sat, 23 May 2026 00:48:37 +0300 Message-ID: <20260522214923.807017-6-mjt@tls.msk.ru> X-Mailer: git-send-email 2.47.3 In-Reply-To: References: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists1p.gnu.org; Received-SPF: pass client-ip=212.248.84.144; envelope-from=mjt@tls.msk.ru; helo=isrv.corpit.ru X-Spam_score_int: -19 X-Spam_score: -2.0 X-Spam_bar: -- X-Spam_report: (-2.0 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 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: qemu development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @tls.msk.ru) X-ZM-MESSAGEID: 1779486856236158500 From: Vivien LEGER The bus-frequency property in the CPU FDT node was hardcoded to 0. This is incorrect - it should reflect the actual platform bus clock frequency, as firmware and RTOSes use it to derive peripheral clock rates. Notably, the RTEMS QorIQ BSP uses bus-frequency to program the MPIC global timer interval. With bus-frequency=3D0, the timer interval overflows to ~85 seconds, preventing any clock interrupts from firing. Fix by adding a bus_freq field to PPCE500MachineClass and using it in the FDT generator. Set bus_freq =3D PLATFORM_CLK_FREQ_HZ (400MHz) for existing machines, matching the existing clock_freq value. Signed-off-by: Vivien LEGER Reviewed-by: Bernhard Beschow Message-ID: <20260411154535.1451361-1-vivien.leger@gmail.com> Signed-off-by: Philippe Mathieu-Daud=C3=A9 (cherry picked from commit 774e6f5c1533aba9e04f95cb8cfba64d8329fcb0) Signed-off-by: Michael Tokarev diff --git a/hw/ppc/e500.c b/hw/ppc/e500.c index 8842f7f6b8..bde8a928f9 100644 --- a/hw/ppc/e500.c +++ b/hw/ppc/e500.c @@ -517,7 +517,7 @@ static int ppce500_load_device_tree(PPCE500MachineState= *pms, env->icache_line_size); qemu_fdt_setprop_cell(fdt, cpu_name, "d-cache-size", 0x8000); qemu_fdt_setprop_cell(fdt, cpu_name, "i-cache-size", 0x8000); - qemu_fdt_setprop_cell(fdt, cpu_name, "bus-frequency", 0); + qemu_fdt_setprop_cell(fdt, cpu_name, "bus-frequency", pmc->bus_fre= q); if (cpu->cpu_index) { qemu_fdt_setprop_string(fdt, cpu_name, "status", "disabled"); qemu_fdt_setprop_string(fdt, cpu_name, "enable-method", diff --git a/hw/ppc/e500.h b/hw/ppc/e500.h index 00f490519c..858684d569 100644 --- a/hw/ppc/e500.h +++ b/hw/ppc/e500.h @@ -40,6 +40,7 @@ struct PPCE500MachineClass { hwaddr pci_mmio_bus_base; hwaddr spin_base; uint32_t clock_freq; + uint32_t bus_freq; uint32_t tb_freq; }; =20 diff --git a/hw/ppc/e500plat.c b/hw/ppc/e500plat.c index 4f1d659e72..dab9e32b96 100644 --- a/hw/ppc/e500plat.c +++ b/hw/ppc/e500plat.c @@ -94,6 +94,7 @@ static void e500plat_machine_class_init(ObjectClass *oc, = const void *data) pmc->pci_mmio_bus_base =3D 0xE0000000ULL; pmc->spin_base =3D 0xFEF000000ULL; pmc->clock_freq =3D PLATFORM_CLK_FREQ_HZ; + pmc->bus_freq =3D PLATFORM_CLK_FREQ_HZ; pmc->tb_freq =3D PLATFORM_CLK_FREQ_HZ; =20 mc->desc =3D "generic paravirt e500 platform"; diff --git a/hw/ppc/mpc8544ds.c b/hw/ppc/mpc8544ds.c index 582698559d..d022761cb6 100644 --- a/hw/ppc/mpc8544ds.c +++ b/hw/ppc/mpc8544ds.c @@ -56,6 +56,7 @@ static void mpc8544ds_machine_class_init(ObjectClass *oc,= const void *data) pmc->pci_pio_base =3D 0xE1000000ULL; pmc->spin_base =3D 0xEF000000ULL; pmc->clock_freq =3D PLATFORM_CLK_FREQ_HZ; + pmc->bus_freq =3D PLATFORM_CLK_FREQ_HZ; pmc->tb_freq =3D PLATFORM_CLK_FREQ_HZ; =20 mc->desc =3D "mpc8544ds"; --=20 2.47.3