From: Leo Yan <leo.yan@linaro.org> To: Rob Herring <robh+dt@kernel.org>, Mark Rutland <mark.rutland@arm.com>, Wei Xu <xuwei5@hisilicon.com>, Catalin Marinas <catalin.marinas@arm.com>, Will Deacon <will.deacon@arm.com>, Michael Turquette <mturquette@baylibre.com>, Stephen Boyd <sboyd@codeaurora.org>, Mathieu Poirier <mathieu.poirier@linaro.org>, John Stultz <john.stultz@linaro.org>, Guodong Xu <guodong.xu@linaro.org>, Haojian Zhuang <haojian.zhuang@linaro.org>, Greg Kroah-Hartman <gregkh@linuxfoundation.org>, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-clk@vger.kernel.org, mike.leach@linaro.org Cc: Leo Yan <leo.yan@linaro.org> Subject: [PATCH v3 2/5] coresight: refactor with function of_coresight_get_cpu Date: Fri, 3 Mar 2017 14:00:06 +0800 [thread overview] Message-ID: <1488520809-31670-3-git-send-email-leo.yan@linaro.org> (raw) In-Reply-To: <1488520809-31670-1-git-send-email-leo.yan@linaro.org> This is refactor to add function of_coresight_get_cpu(), so it's used to retrieve CPU id for coresight component. Finally can use it as a common function for multiple places. Suggested-by: Mathieu Poirier <mathieu.poirier@linaro.org> Signed-off-by: Leo Yan <leo.yan@linaro.org> --- drivers/hwtracing/coresight/of_coresight.c | 37 ++++++++++++++++++++---------- include/linux/coresight.h | 2 ++ 2 files changed, 27 insertions(+), 12 deletions(-) diff --git a/drivers/hwtracing/coresight/of_coresight.c b/drivers/hwtracing/coresight/of_coresight.c index 629e031..d9a12fb 100644 --- a/drivers/hwtracing/coresight/of_coresight.c +++ b/drivers/hwtracing/coresight/of_coresight.c @@ -101,14 +101,36 @@ static int of_coresight_alloc_memory(struct device *dev, return 0; } +int of_coresight_get_cpu(struct device_node *node) +{ + int cpu; + struct device_node *dn; + + dn = of_parse_phandle(node, "cpu", 0); + + /* Affinity defaults to CPU0 */ + if (!dn) + return 0; + + for_each_possible_cpu(cpu) { + if (dn == of_get_cpu_node(cpu, NULL)) { + of_node_put(dn); + return cpu; + } + } + + /* Affinity to CPU0 if no cpu nodes are found */ + of_node_put(dn); + return 0; +} + struct coresight_platform_data *of_get_coresight_platform_data( struct device *dev, struct device_node *node) { - int i = 0, ret = 0, cpu; + int i = 0, ret = 0; struct coresight_platform_data *pdata; struct of_endpoint endpoint, rendpoint; struct device *rdev; - struct device_node *dn; struct device_node *ep = NULL; struct device_node *rparent = NULL; struct device_node *rport = NULL; @@ -175,16 +197,7 @@ struct coresight_platform_data *of_get_coresight_platform_data( } while (ep); } - /* Affinity defaults to CPU0 */ - pdata->cpu = 0; - dn = of_parse_phandle(node, "cpu", 0); - for (cpu = 0; dn && cpu < nr_cpu_ids; cpu++) { - if (dn == of_get_cpu_node(cpu, NULL)) { - pdata->cpu = cpu; - break; - } - } - of_node_put(dn); + pdata->cpu = of_coresight_get_cpu(node); return pdata; } diff --git a/include/linux/coresight.h b/include/linux/coresight.h index 2a5982c..7b29743 100644 --- a/include/linux/coresight.h +++ b/include/linux/coresight.h @@ -263,9 +263,11 @@ static inline int coresight_timeout(void __iomem *addr, u32 offset, #endif #ifdef CONFIG_OF +extern int of_coresight_get_cpu(struct device_node *node); extern struct coresight_platform_data *of_get_coresight_platform_data( struct device *dev, struct device_node *node); #else +static int of_coresight_get_cpu(struct device_node *node) { return 0; } static inline struct coresight_platform_data *of_get_coresight_platform_data( struct device *dev, struct device_node *node) { return NULL; } #endif -- 2.7.4
WARNING: multiple messages have this Message-ID (diff)
From: leo.yan@linaro.org (Leo Yan) To: linux-arm-kernel@lists.infradead.org Subject: [PATCH v3 2/5] coresight: refactor with function of_coresight_get_cpu Date: Fri, 3 Mar 2017 14:00:06 +0800 [thread overview] Message-ID: <1488520809-31670-3-git-send-email-leo.yan@linaro.org> (raw) In-Reply-To: <1488520809-31670-1-git-send-email-leo.yan@linaro.org> This is refactor to add function of_coresight_get_cpu(), so it's used to retrieve CPU id for coresight component. Finally can use it as a common function for multiple places. Suggested-by: Mathieu Poirier <mathieu.poirier@linaro.org> Signed-off-by: Leo Yan <leo.yan@linaro.org> --- drivers/hwtracing/coresight/of_coresight.c | 37 ++++++++++++++++++++---------- include/linux/coresight.h | 2 ++ 2 files changed, 27 insertions(+), 12 deletions(-) diff --git a/drivers/hwtracing/coresight/of_coresight.c b/drivers/hwtracing/coresight/of_coresight.c index 629e031..d9a12fb 100644 --- a/drivers/hwtracing/coresight/of_coresight.c +++ b/drivers/hwtracing/coresight/of_coresight.c @@ -101,14 +101,36 @@ static int of_coresight_alloc_memory(struct device *dev, return 0; } +int of_coresight_get_cpu(struct device_node *node) +{ + int cpu; + struct device_node *dn; + + dn = of_parse_phandle(node, "cpu", 0); + + /* Affinity defaults to CPU0 */ + if (!dn) + return 0; + + for_each_possible_cpu(cpu) { + if (dn == of_get_cpu_node(cpu, NULL)) { + of_node_put(dn); + return cpu; + } + } + + /* Affinity to CPU0 if no cpu nodes are found */ + of_node_put(dn); + return 0; +} + struct coresight_platform_data *of_get_coresight_platform_data( struct device *dev, struct device_node *node) { - int i = 0, ret = 0, cpu; + int i = 0, ret = 0; struct coresight_platform_data *pdata; struct of_endpoint endpoint, rendpoint; struct device *rdev; - struct device_node *dn; struct device_node *ep = NULL; struct device_node *rparent = NULL; struct device_node *rport = NULL; @@ -175,16 +197,7 @@ struct coresight_platform_data *of_get_coresight_platform_data( } while (ep); } - /* Affinity defaults to CPU0 */ - pdata->cpu = 0; - dn = of_parse_phandle(node, "cpu", 0); - for (cpu = 0; dn && cpu < nr_cpu_ids; cpu++) { - if (dn == of_get_cpu_node(cpu, NULL)) { - pdata->cpu = cpu; - break; - } - } - of_node_put(dn); + pdata->cpu = of_coresight_get_cpu(node); return pdata; } diff --git a/include/linux/coresight.h b/include/linux/coresight.h index 2a5982c..7b29743 100644 --- a/include/linux/coresight.h +++ b/include/linux/coresight.h @@ -263,9 +263,11 @@ static inline int coresight_timeout(void __iomem *addr, u32 offset, #endif #ifdef CONFIG_OF +extern int of_coresight_get_cpu(struct device_node *node); extern struct coresight_platform_data *of_get_coresight_platform_data( struct device *dev, struct device_node *node); #else +static int of_coresight_get_cpu(struct device_node *node) { return 0; } static inline struct coresight_platform_data *of_get_coresight_platform_data( struct device *dev, struct device_node *node) { return NULL; } #endif -- 2.7.4
next prev parent reply other threads:[~2017-03-03 7:04 UTC|newest] Thread overview: 111+ messages / expand[flat|nested] mbox.gz Atom feed top 2017-03-03 6:00 [PATCH v3 0/5] coresight: enable debug module Leo Yan 2017-03-03 6:00 ` Leo Yan 2017-03-03 6:00 ` [PATCH v3 1/5] coresight: bindings for " Leo Yan 2017-03-03 6:00 ` Leo Yan 2017-03-09 13:27 ` [v3 " Suzuki K Poulose 2017-03-09 13:27 ` Suzuki K Poulose 2017-03-09 13:27 ` Suzuki K Poulose 2017-03-03 6:00 ` Leo Yan [this message] 2017-03-03 6:00 ` [PATCH v3 2/5] coresight: refactor with function of_coresight_get_cpu Leo Yan 2017-03-03 6:00 ` [PATCH v3 3/5] coresight: add support for debug module Leo Yan 2017-03-03 6:00 ` Leo Yan 2017-03-09 16:53 ` [v3 " Suzuki K Poulose 2017-03-09 16:53 ` Suzuki K Poulose 2017-03-09 16:53 ` Suzuki K Poulose 2017-03-09 17:59 ` Leo Yan 2017-03-09 17:59 ` Leo Yan 2017-03-09 17:59 ` Leo Yan 2017-03-10 14:29 ` Suzuki K Poulose 2017-03-10 14:29 ` Suzuki K Poulose 2017-03-13 8:12 ` Leo Yan 2017-03-13 8:12 ` Leo Yan 2017-03-13 8:12 ` Leo Yan 2017-03-13 16:56 ` Mathieu Poirier 2017-03-13 16:56 ` Mathieu Poirier 2017-03-13 16:56 ` Mathieu Poirier 2017-03-15 16:44 ` Suzuki K Poulose 2017-03-15 16:44 ` Suzuki K Poulose 2017-03-15 16:44 ` Suzuki K Poulose 2017-03-15 20:41 ` Mathieu Poirier 2017-03-15 20:41 ` Mathieu Poirier 2017-03-15 20:41 ` Mathieu Poirier 2017-03-15 20:41 ` Mathieu Poirier 2017-03-17 10:13 ` Leo Yan 2017-03-17 10:13 ` Leo Yan 2017-03-17 10:13 ` Leo Yan 2017-03-17 10:13 ` Leo Yan 2017-03-17 15:50 ` Mathieu Poirier 2017-03-17 15:50 ` Mathieu Poirier 2017-03-17 15:50 ` Mathieu Poirier 2017-03-17 15:50 ` Mathieu Poirier 2017-03-17 16:28 ` Leo Yan 2017-03-17 16:28 ` Leo Yan 2017-03-17 16:28 ` Leo Yan 2017-03-17 16:28 ` Leo Yan 2017-03-17 16:47 ` Suzuki K Poulose 2017-03-17 16:47 ` Suzuki K Poulose 2017-03-17 16:47 ` Suzuki K Poulose 2017-03-17 16:47 ` Suzuki K Poulose 2017-03-20 12:30 ` Leo Yan 2017-03-20 12:30 ` Leo Yan 2017-03-20 12:30 ` Leo Yan 2017-03-20 12:30 ` Leo Yan 2017-03-20 16:40 ` Mathieu Poirier 2017-03-20 16:40 ` Mathieu Poirier 2017-03-20 16:40 ` Mathieu Poirier 2017-03-20 16:40 ` Mathieu Poirier 2017-03-21 2:59 ` Leo Yan 2017-03-21 2:59 ` Leo Yan 2017-03-21 2:59 ` Leo Yan 2017-03-21 2:59 ` Leo Yan 2017-03-21 10:16 ` Suzuki K Poulose 2017-03-21 10:16 ` Suzuki K Poulose 2017-03-21 10:16 ` Suzuki K Poulose 2017-03-21 11:47 ` Leo Yan 2017-03-21 11:47 ` Leo Yan 2017-03-21 11:47 ` Leo Yan 2017-03-21 11:47 ` Leo Yan 2017-03-21 15:15 ` Mathieu Poirier 2017-03-21 15:15 ` Mathieu Poirier 2017-03-21 15:15 ` Mathieu Poirier 2017-03-21 15:15 ` Mathieu Poirier 2017-03-13 16:29 ` Mathieu Poirier 2017-03-13 16:29 ` Mathieu Poirier 2017-03-13 16:29 ` Mathieu Poirier 2017-03-21 15:39 ` [PATCH v3 " Sudeep Holla 2017-03-21 15:39 ` Sudeep Holla 2017-03-22 12:54 ` Mike Leach 2017-03-22 14:07 ` Sudeep Holla 2017-03-22 14:07 ` Sudeep Holla 2017-03-22 14:07 ` Sudeep Holla 2017-03-22 15:45 ` Mike Leach 2017-03-22 15:45 ` Mike Leach 2017-03-22 15:45 ` Mike Leach 2017-03-22 16:17 ` Sudeep Holla 2017-03-22 16:17 ` Sudeep Holla 2017-03-22 17:09 ` Suzuki K Poulose 2017-03-22 17:09 ` Suzuki K Poulose 2017-03-22 17:09 ` Suzuki K Poulose 2017-03-22 17:25 ` Sudeep Holla 2017-03-22 17:25 ` Sudeep Holla 2017-03-22 17:25 ` Sudeep Holla 2017-03-23 5:43 ` Leo Yan 2017-03-23 5:43 ` Leo Yan 2017-03-23 5:43 ` Leo Yan 2017-03-23 12:27 ` Mike Leach 2017-03-23 12:27 ` Mike Leach 2017-03-22 16:01 ` Leo Yan 2017-03-22 16:01 ` Leo Yan 2017-03-22 16:53 ` Sudeep Holla 2017-03-22 16:53 ` Sudeep Holla 2017-03-22 16:53 ` Sudeep Holla 2017-03-03 6:00 ` [PATCH v3 4/5] clk: hi6220: add debug APB clock Leo Yan 2017-03-03 6:00 ` Leo Yan 2017-03-03 23:58 ` Stephen Boyd 2017-03-03 23:58 ` Stephen Boyd 2017-03-03 23:58 ` Stephen Boyd 2017-03-17 15:22 ` Leo Yan 2017-03-17 15:22 ` Leo Yan 2017-03-17 15:22 ` Leo Yan 2017-03-03 6:00 ` [PATCH v3 5/5] arm64: dts: hi6220: register debug module Leo Yan 2017-03-03 6:00 ` Leo Yan
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