From: Georgi Djakov <georgi.djakov@linaro.org> 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, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-arm-msm@vger.kernel.org, georgi.djakov@linaro.org Subject: [PATCH v5 3/8] interconnect: Add debugfs support Date: Wed, 20 Jun 2018 15:11:36 +0300 [thread overview] Message-ID: <20180620121141.15403-4-georgi.djakov@linaro.org> (raw) In-Reply-To: <20180620121141.15403-1-georgi.djakov@linaro.org> Add a functionality to provide information about the current constraints per each node and provider. Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org> --- drivers/interconnect/core.c | 78 +++++++++++++++++++++++++++++++++++++ 1 file changed, 78 insertions(+) diff --git a/drivers/interconnect/core.c b/drivers/interconnect/core.c index e7f96fc6722e..dafc001ce758 100644 --- a/drivers/interconnect/core.c +++ b/drivers/interconnect/core.c @@ -6,6 +6,7 @@ * Author: Georgi Djakov <georgi.djakov@linaro.org> */ +#include <linux/debugfs.h> #include <linux/device.h> #include <linux/idr.h> #include <linux/init.h> @@ -15,10 +16,12 @@ #include <linux/module.h> #include <linux/mutex.h> #include <linux/slab.h> +#include <linux/uaccess.h> 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 @@ -47,6 +50,81 @@ struct icc_path { struct icc_req reqs[0]; }; +#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, +}; + +static int __init icc_debugfs_init(void) +{ + struct dentry *file; + + icc_debugfs_dir = debugfs_create_dir("interconnect", NULL); + if (!icc_debugfs_dir) { + pr_err("interconnect: error creating debugfs directory\n"); + return -ENODEV; + } + + file = debugfs_create_file("interconnect_summary", 0444, + icc_debugfs_dir, NULL, &icc_summary_fops); + if (!file) + return -ENODEV; + + return 0; +} +late_initcall(icc_debugfs_init); +#endif + static struct icc_node *node_find(const int id) { struct icc_node *node;
WARNING: multiple messages have this Message-ID (diff)
From: georgi.djakov@linaro.org (Georgi Djakov) To: linux-arm-kernel@lists.infradead.org Subject: [PATCH v5 3/8] interconnect: Add debugfs support Date: Wed, 20 Jun 2018 15:11:36 +0300 [thread overview] Message-ID: <20180620121141.15403-4-georgi.djakov@linaro.org> (raw) In-Reply-To: <20180620121141.15403-1-georgi.djakov@linaro.org> Add a functionality to provide information about the current constraints per each node and provider. Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org> --- drivers/interconnect/core.c | 78 +++++++++++++++++++++++++++++++++++++ 1 file changed, 78 insertions(+) diff --git a/drivers/interconnect/core.c b/drivers/interconnect/core.c index e7f96fc6722e..dafc001ce758 100644 --- a/drivers/interconnect/core.c +++ b/drivers/interconnect/core.c @@ -6,6 +6,7 @@ * Author: Georgi Djakov <georgi.djakov@linaro.org> */ +#include <linux/debugfs.h> #include <linux/device.h> #include <linux/idr.h> #include <linux/init.h> @@ -15,10 +16,12 @@ #include <linux/module.h> #include <linux/mutex.h> #include <linux/slab.h> +#include <linux/uaccess.h> 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 @@ -47,6 +50,81 @@ struct icc_path { struct icc_req reqs[0]; }; +#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, +}; + +static int __init icc_debugfs_init(void) +{ + struct dentry *file; + + icc_debugfs_dir = debugfs_create_dir("interconnect", NULL); + if (!icc_debugfs_dir) { + pr_err("interconnect: error creating debugfs directory\n"); + return -ENODEV; + } + + file = debugfs_create_file("interconnect_summary", 0444, + icc_debugfs_dir, NULL, &icc_summary_fops); + if (!file) + return -ENODEV; + + return 0; +} +late_initcall(icc_debugfs_init); +#endif + static struct icc_node *node_find(const int id) { struct icc_node *node;
next prev parent reply other threads:[~2018-06-20 12:11 UTC|newest] Thread overview: 54+ messages / expand[flat|nested] mbox.gz Atom feed top 2018-06-20 12:11 [PATCH v5 0/8] Introduce on-chip interconnect API Georgi Djakov 2018-06-20 12:11 ` Georgi Djakov 2018-06-20 12:11 ` [PATCH v5 1/8] interconnect: Add generic " Georgi Djakov 2018-06-20 12:11 ` Georgi Djakov 2018-06-26 20:57 ` Evan Green 2018-06-26 20:57 ` Evan Green 2018-06-26 20:57 ` Evan Green 2018-06-26 21:58 ` Matthias Kaehlcke 2018-06-26 21:58 ` Matthias Kaehlcke 2018-06-27 0:54 ` Rob Clark 2018-06-27 0:54 ` Rob Clark 2018-07-01 11:03 ` Georgi Djakov 2018-07-01 11:03 ` Georgi Djakov 2018-07-01 11:03 ` Georgi Djakov 2018-06-26 23:34 ` Matthias Kaehlcke 2018-06-26 23:34 ` Matthias Kaehlcke 2018-07-01 11:06 ` Georgi Djakov 2018-07-01 11:06 ` Georgi Djakov 2018-06-27 6:19 ` Vincent Guittot 2018-06-27 6:19 ` Vincent Guittot 2018-07-01 11:09 ` Georgi Djakov 2018-07-01 11:09 ` Georgi Djakov 2018-07-02 7:23 ` Vincent Guittot 2018-07-02 7:23 ` Vincent Guittot 2018-06-20 12:11 ` [PATCH v5 2/8] dt-bindings: Introduce interconnect provider bindings Georgi Djakov 2018-06-20 12:11 ` Georgi Djakov 2018-06-20 12:11 ` Georgi Djakov [this message] 2018-06-20 12:11 ` [PATCH v5 3/8] interconnect: Add debugfs support Georgi Djakov 2018-06-20 12:11 ` [PATCH v5 4/8] interconnect: qcom: Add RPM communication Georgi Djakov 2018-06-20 12:11 ` Georgi Djakov 2018-06-26 20:47 ` Evan Green 2018-06-26 20:47 ` Evan Green 2018-07-01 11:16 ` Georgi Djakov 2018-07-01 11:16 ` Georgi Djakov 2018-06-27 0:55 ` Matthias Kaehlcke 2018-06-27 0:55 ` Matthias Kaehlcke 2018-07-01 11:18 ` Georgi Djakov 2018-07-01 11:18 ` Georgi Djakov 2018-06-20 12:11 ` [PATCH v5 5/8] dt-bindings: interconnect: Document qcom,msm8916 NoC bindings Georgi Djakov 2018-06-20 12:11 ` [PATCH v5 5/8] dt-bindings: interconnect: Document qcom, msm8916 " Georgi Djakov 2018-06-20 12:11 ` [PATCH v5 6/8] interconnect: qcom: Add msm8916 interconnect provider driver Georgi Djakov 2018-06-20 12:11 ` Georgi Djakov 2018-06-26 20:48 ` Evan Green 2018-06-26 20:48 ` Evan Green 2018-07-01 12:12 ` Georgi Djakov 2018-07-01 12:12 ` Georgi Djakov 2018-07-02 17:08 ` Evan Green 2018-07-02 17:08 ` Evan Green 2018-07-02 17:08 ` Evan Green 2018-06-20 12:11 ` [PATCH v5 7/8] dt-bindings: Introduce interconnect consumers bindings Georgi Djakov 2018-06-20 12:11 ` Georgi Djakov 2018-06-20 12:11 ` Georgi Djakov 2018-06-20 12:11 ` [PATCH v5 8/8] interconnect: Allow endpoints translation via DT Georgi Djakov 2018-06-20 12:11 ` Georgi Djakov
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