From patchwork Thu Jul 25 23:53:01 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Nicholas Piggin X-Patchwork-Id: 13742267 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id AD842C3DA49 for ; Thu, 25 Jul 2024 23:59:32 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1sX8Jh-0003EJ-8g; Thu, 25 Jul 2024 19:56:13 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1sX8Jd-0002Wi-2j; Thu, 25 Jul 2024 19:56:09 -0400 Received: from mail-pj1-x102f.google.com ([2607:f8b0:4864:20::102f]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1sX8Jb-00012u-50; Thu, 25 Jul 2024 19:56:08 -0400 Received: by mail-pj1-x102f.google.com with SMTP id 98e67ed59e1d1-2caff99b1c9so283569a91.3; Thu, 25 Jul 2024 16:56:06 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1721951765; x=1722556565; darn=nongnu.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=B+lS4BcdTD9KL7iugiwevIUzaEHouwFCAeZSV+PvIxY=; b=d+ng4ea3jHR6pZ90hEuw5hBBlvQpLDU4fvjCX0w/PDx9F+i4PwH7Ua2AD9RLwuET0I xPv+KVdNsdVivAU9yJqGR+kRvLsgHnnoC1+Mnst4DCm/c5U/h7RRfRrn5FP0eC3FvGKG GDhzfIArqBtgvw5ja/x0+eFHKJ9Ftnw7sVTEAReljWOz0OPovc2ltyplpB8PzLa4dwXN 4cEIEOllHlJNdprDURrElr15Bd9EJErPvqqQCJsmQRK2ChXTcHeQptS3f4ac1IQPBhx0 8SaPomrnJhalOqRHVxF/l+HaqD8GLgO40QNddg/rRxLdqruTrqAOT+sUfoE+rnf4pr02 pDJQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1721951765; x=1722556565; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=B+lS4BcdTD9KL7iugiwevIUzaEHouwFCAeZSV+PvIxY=; b=GZt+ueG3uo6jhOSocEO/PL/rPVpcdbzxXjRKDVZ9PLg8X76puIae4G5n82w0w+9zA2 1rQFD2LfZxycW+GGGSPhlic3IatbGW/hEdUV69wXO4ipHZzUqPaKg1UlnI6a1scxhUAO 9DnORC50x9KDK6+ZhDF1nQqGFT4S5xzzluCM8oiiUrH2j9wJd4p5y6t6OjTYSkOqhlZL L+xH7d4Lglw3ld1uiHfNOzp4VwtmonB0VJWO9HNy1M9/TViP9Z9KMUuzq6Jdyie0WMam 8f5f2NI0nYwj1At/KBxaawJTC2B9jY/oY3dV6rF5OK82lxRd2c9IDySt2lnxYXXOH7F3 Fffg== X-Forwarded-Encrypted: i=1; AJvYcCW3bIPCv2EKnK/8kgGebhqEpWwFf2Z8cYOgiwPI97gU262zV7pMP02fR9yi3evkzeW7fqPz/+pDinPyCznJv96q8r6p X-Gm-Message-State: AOJu0YwgWKHqHuUeqFeoJSbcM1ijTaZHdv83KZni3m5J63O5IHqB9Ois i6wQCJozu8KrNqpTI/bgGAVAnUhPblWL5e3DRJT2zY2oJlm4h0+QrDwvMw== X-Google-Smtp-Source: AGHT+IHDfeIE6hgXaul2Y1k74aBlAW34kcYGTB0H1D2+4fV5lbh+W/p4hGCwcsTXlAyUnDW0WFKUzw== X-Received: by 2002:a17:90b:3790:b0:2c9:649c:5e08 with SMTP id 98e67ed59e1d1-2cf2e9d730dmr3633367a91.15.1721951765020; Thu, 25 Jul 2024 16:56:05 -0700 (PDT) Received: from wheely.local0.net ([203.220.44.216]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-2cf28c7fef3sm2142060a91.16.2024.07.25.16.56.02 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 25 Jul 2024 16:56:04 -0700 (PDT) From: Nicholas Piggin To: qemu-devel@nongnu.org Cc: Nicholas Piggin , qemu-ppc@nongnu.org, =?utf-8?q?C?= =?utf-8?q?=C3=A9dric_Le_Goater?= Subject: [PULL 28/96] ppc/pnv: Add allow for big-core differences in DT generation Date: Fri, 26 Jul 2024 09:53:01 +1000 Message-ID: <20240725235410.451624-29-npiggin@gmail.com> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20240725235410.451624-1-npiggin@gmail.com> References: <20240725235410.451624-1-npiggin@gmail.com> MIME-Version: 1.0 Received-SPF: pass client-ip=2607:f8b0:4864:20::102f; envelope-from=npiggin@gmail.com; helo=mail-pj1-x102f.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 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_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, 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: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org device-tree building needs to account for big-core mode, because it is driven by qemu cores (small cores). Every second core should be skipped, and every core should describe threads for both small-cores that make up the big core. Reviewed-by: Cédric Le Goater Signed-off-by: Nicholas Piggin --- hw/ppc/pnv.c | 43 +++++++++++++++++++++++++++++++++++-------- 1 file changed, 35 insertions(+), 8 deletions(-) diff --git a/hw/ppc/pnv.c b/hw/ppc/pnv.c index 07a29411a6..a1c2cbbc3f 100644 --- a/hw/ppc/pnv.c +++ b/hw/ppc/pnv.c @@ -141,9 +141,9 @@ static int pnv_dt_core(PnvChip *chip, PnvCore *pc, void *fdt) CPUPPCState *env = &cpu->env; PowerPCCPUClass *pcc = POWERPC_CPU_GET_CLASS(cs); PnvChipClass *pnv_cc = PNV_CHIP_GET_CLASS(chip); - g_autofree uint32_t *servers_prop = g_new(uint32_t, smt_threads); + uint32_t *servers_prop; int i; - uint32_t pir; + uint32_t pir, tir; uint32_t segs[] = {cpu_to_be32(28), cpu_to_be32(40), 0xffffffff, 0xffffffff}; uint32_t tbfreq = PNV_TIMEBASE_FREQ; @@ -154,7 +154,10 @@ static int pnv_dt_core(PnvChip *chip, PnvCore *pc, void *fdt) char *nodename; int cpus_offset = get_cpus_node(fdt); - pnv_cc->get_pir_tir(chip, pc->hwid, 0, &pir, NULL); + pnv_cc->get_pir_tir(chip, pc->hwid, 0, &pir, &tir); + + /* Only one DT node per (big) core */ + g_assert(tir == 0); nodename = g_strdup_printf("%s@%x", dc->fw_name, pir); offset = fdt_add_subnode(fdt, cpus_offset, nodename); @@ -235,12 +238,28 @@ static int pnv_dt_core(PnvChip *chip, PnvCore *pc, void *fdt) } /* Build interrupt servers properties */ - for (i = 0; i < smt_threads; i++) { - pnv_cc->get_pir_tir(chip, pc->hwid, i, &pir, NULL); - servers_prop[i] = cpu_to_be32(pir); + if (pc->big_core) { + servers_prop = g_new(uint32_t, smt_threads * 2); + for (i = 0; i < smt_threads; i++) { + pnv_cc->get_pir_tir(chip, pc->hwid, i, &pir, NULL); + servers_prop[i * 2] = cpu_to_be32(pir); + + pnv_cc->get_pir_tir(chip, pc->hwid + 1, i, &pir, NULL); + servers_prop[i * 2 + 1] = cpu_to_be32(pir); + } + _FDT((fdt_setprop(fdt, offset, "ibm,ppc-interrupt-server#s", + servers_prop, sizeof(*servers_prop) * smt_threads + * 2))); + } else { + servers_prop = g_new(uint32_t, smt_threads); + for (i = 0; i < smt_threads; i++) { + pnv_cc->get_pir_tir(chip, pc->hwid, i, &pir, NULL); + servers_prop[i] = cpu_to_be32(pir); + } + _FDT((fdt_setprop(fdt, offset, "ibm,ppc-interrupt-server#s", + servers_prop, sizeof(*servers_prop) * smt_threads))); } - _FDT((fdt_setprop(fdt, offset, "ibm,ppc-interrupt-server#s", - servers_prop, sizeof(*servers_prop) * smt_threads))); + g_free(servers_prop); return offset; } @@ -389,6 +408,10 @@ static void pnv_chip_power9_dt_populate(PnvChip *chip, void *fdt) _FDT((fdt_setprop(fdt, offset, "ibm,pa-features", pa_features_300, sizeof(pa_features_300)))); + + if (pnv_core->big_core) { + i++; /* Big-core groups two QEMU cores */ + } } if (chip->ram_size) { @@ -450,6 +473,10 @@ static void pnv_chip_power10_dt_populate(PnvChip *chip, void *fdt) _FDT((fdt_setprop(fdt, offset, "ibm,pa-features", pa_features_31, sizeof(pa_features_31)))); + + if (pnv_core->big_core) { + i++; /* Big-core groups two QEMU cores */ + } } if (chip->ram_size) {