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[209.132.180.67]) by mx.google.com with ESMTP id s2-v6si12597283pgc.447.2018.07.31.09.13.51; Tue, 31 Jul 2018 09:13:51 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-arm-msm-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=neutral (body hash did not verify) header.i=@linaro.org header.s=google header.b=Iq5d2rnL; spf=pass (google.com: best guess record for domain of linux-arm-msm-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-arm-msm-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=linaro.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728052AbeGaRyv (ORCPT + 13 others); Tue, 31 Jul 2018 13:54:51 -0400 Received: from mail-wr1-f66.google.com ([209.85.221.66]:35947 "EHLO mail-wr1-f66.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727569AbeGaRyu (ORCPT ); Tue, 31 Jul 2018 13:54:50 -0400 Received: by mail-wr1-f66.google.com with SMTP id h9-v6so17283768wro.3 for ; Tue, 31 Jul 2018 09:13:48 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=MstRtlbSy22PdLRbN/kTddePgmsV5+WAQ27NH2SPrJw=; b=Iq5d2rnL9lMSwZ3/x3Y+anfMCcAWqd5FbNsH+M7x3YUq+PIWFp6fm7Gtt3sSOLZnJK w+2UbbNc7mYNqmV/QolqNbuUwqYAviFMEwq6C2uwRpKhQ0a17biFifBrvIChVYesRAz0 e+6oM2sdEKaLU6EAcpTl22PnPXJWy5zki/6zg= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=MstRtlbSy22PdLRbN/kTddePgmsV5+WAQ27NH2SPrJw=; b=iDV8MeF679fOohBJi0TqBp8BgEv8LGU+loRbM0hve14zQxi3oLC1BLc0YJ4uSt2Wa1 +K1HCEFnDsw48nGVp1DjZOcwzdrLdiQjF0AJfQ2/zQyZN/wdtd3tWrK5Kjo57/ltI0xx oT2H/e0SzA9evPT0rpUYFbwutouICuj2y9ymC5cbhoCrlsXTMa6OCcxYXWgHC9OgnUh8 Bfh6YCra8B01nwL1/yeeQ3GF2QxAFYJHEChqyLlLN91LQgvACqBvDJFQi1AdsCO2/0Mj OQQNEU/MzNqCNXD6rnc2AlABB8wAsrz/0G229S3MJSWAibVt5MlA7451g5FICJEJQzx1 9JsQ== X-Gm-Message-State: AOUpUlHBdyuq2soLqP+uVeccvTMfgUY0SnZAA6jKL7/YOn5G3uTco24c ZHTFvFRrx8JdBHVV2tFyWm3Zcg== X-Received: by 2002:adf:fe8f:: with SMTP id l15-v6mr22111546wrr.165.1533053628052; Tue, 31 Jul 2018 09:13:48 -0700 (PDT) Received: from localhost.localdomain ([212.45.67.2]) by smtp.googlemail.com with ESMTPSA id t186-v6sm3643457wmf.14.2018.07.31.09.13.46 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Tue, 31 Jul 2018 09:13:47 -0700 (PDT) From: Georgi Djakov To: linux-pm@vger.kernel.org, gregkh@linuxfoundation.org Cc: rjw@rjwysocki.net, robh+dt@kernel.org, mturquette@baylibre.com, khilman@baylibre.com, vincent.guittot@linaro.org, skannan@codeaurora.org, bjorn.andersson@linaro.org, amit.kucheria@linaro.org, seansw@qti.qualcomm.com, daidavid1@codeaurora.org, evgreen@chromium.org, mark.rutland@arm.com, lorenzo.pieralisi@arm.com, abailon@baylibre.com, arnd@arndb.de, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-arm-msm@vger.kernel.org, georgi.djakov@linaro.org Subject: [PATCH v7 3/8] interconnect: Add debugfs support Date: Tue, 31 Jul 2018 19:13:35 +0300 Message-Id: <20180731161340.13000-4-georgi.djakov@linaro.org> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20180731161340.13000-1-georgi.djakov@linaro.org> References: <20180731161340.13000-1-georgi.djakov@linaro.org> Sender: linux-arm-msm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org Add a functionality to provide information about the current constraints per each node and provider. Signed-off-by: Georgi Djakov --- drivers/interconnect/core.c | 78 +++++++++++++++++++++++++++++++++++++ 1 file changed, 78 insertions(+) -- To unsubscribe from this list: send the line "unsubscribe linux-arm-msm" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html diff --git a/drivers/interconnect/core.c b/drivers/interconnect/core.c index 1de4997bc75a..9fef180cf77e 100644 --- a/drivers/interconnect/core.c +++ b/drivers/interconnect/core.c @@ -6,6 +6,7 @@ * Author: Georgi Djakov */ +#include #include #include #include @@ -16,10 +17,12 @@ #include #include #include +#include static DEFINE_IDR(icc_idr); static LIST_HEAD(icc_provider_list); static DEFINE_MUTEX(icc_lock); +static struct dentry *icc_debugfs_dir; /** * struct icc_req - constraints that are attached to each node @@ -48,6 +51,62 @@ struct icc_path { struct icc_req reqs[]; }; +#ifdef CONFIG_DEBUG_FS + +static void icc_summary_show_one(struct seq_file *s, struct icc_node *n) +{ + if (!n) + return; + + seq_printf(s, "%-30s %12d %12d\n", + n->name, n->avg_bw, n->peak_bw); +} + +static int icc_summary_show(struct seq_file *s, void *data) +{ + struct icc_provider *provider; + + seq_puts(s, " node avg peak\n"); + seq_puts(s, "--------------------------------------------------------\n"); + + mutex_lock(&icc_lock); + + list_for_each_entry(provider, &icc_provider_list, provider_list) { + struct icc_node *n; + + list_for_each_entry(n, &provider->nodes, node_list) { + struct icc_req *r; + + icc_summary_show_one(s, n); + hlist_for_each_entry(r, &n->req_list, req_node) { + if (!r->dev) + continue; + + seq_printf(s, " %-26s %12d %12d\n", + dev_name(r->dev), r->avg_bw, + r->peak_bw); + } + } + } + + mutex_unlock(&icc_lock); + + return 0; +} + +static int icc_summary_open(struct inode *inode, struct file *file) +{ + return single_open(file, icc_summary_show, inode->i_private); +} + +static const struct file_operations icc_summary_fops = { + .open = icc_summary_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, +}; +#endif + static struct icc_node *node_find(const int id) { return idr_find(&icc_idr, id); @@ -564,6 +623,25 @@ int icc_provider_del(struct icc_provider *provider) } EXPORT_SYMBOL_GPL(icc_provider_del); +static int __init icc_init(void) +{ +#ifdef CONFIG_DEBUG_FS + icc_debugfs_dir = debugfs_create_dir("interconnect", NULL); + debugfs_create_file("interconnect_summary", 0444, + icc_debugfs_dir, NULL, &icc_summary_fops); +#endif + return 0; +} + +static void __exit icc_exit(void) +{ +#ifdef CONFIG_DEBUG_FS + debugfs_remove_recursive(icc_debugfs_dir); +#endif +} +module_init(icc_init); +module_exit(icc_exit); + MODULE_AUTHOR("Georgi Djakov