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From: Wu Hao <hao.wu@intel.com>
To: gregkh@linuxfoundation.org, mdf@kernel.org, linux-fpga@vger.kernel.org
Cc: linux-kernel@vger.kernel.org, linux-api@vger.kernel.org,
	atull@kernel.org, Wu Hao <hao.wu@intel.com>,
	Xu Yilun <yilun.xu@intel.com>
Subject: [PATCH v2 09/11] fpga: dfl: afu: add STP (SignalTap) support
Date: Fri,  5 Jul 2019 08:23:56 +0800	[thread overview]
Message-ID: <1562286238-11413-10-git-send-email-hao.wu@intel.com> (raw)
In-Reply-To: <1562286238-11413-1-git-send-email-hao.wu@intel.com>

STP (SignalTap) is one of the private features under the port for
debugging. This patch adds private feature driver support for it
to allow userspace applications to mmap related mmio region and
provide STP service.

Signed-off-by: Xu Yilun <yilun.xu@intel.com>
Signed-off-by: Wu Hao <hao.wu@intel.com>
Acked-by: Moritz Fischer <mdf@kernel.org>
Acked-by: Alan Tull <atull@kernel.org>
Signed-off-by: Moritz Fischer <mdf@kernel.org>
---
 drivers/fpga/dfl-afu-main.c | 34 ++++++++++++++++++++++++++++++++++
 1 file changed, 34 insertions(+)

diff --git a/drivers/fpga/dfl-afu-main.c b/drivers/fpga/dfl-afu-main.c
index 15dd4cb..395f96e 100644
--- a/drivers/fpga/dfl-afu-main.c
+++ b/drivers/fpga/dfl-afu-main.c
@@ -514,6 +514,36 @@ static void port_afu_uinit(struct platform_device *pdev,
 	.uinit = port_afu_uinit,
 };
 
+static int port_stp_init(struct platform_device *pdev,
+			 struct dfl_feature *feature)
+{
+	struct resource *res = &pdev->resource[feature->resource_index];
+
+	dev_dbg(&pdev->dev, "PORT STP Init.\n");
+
+	return afu_mmio_region_add(dev_get_platdata(&pdev->dev),
+				   DFL_PORT_REGION_INDEX_STP,
+				   resource_size(res), res->start,
+				   DFL_PORT_REGION_MMAP | DFL_PORT_REGION_READ |
+				   DFL_PORT_REGION_WRITE);
+}
+
+static void port_stp_uinit(struct platform_device *pdev,
+			   struct dfl_feature *feature)
+{
+	dev_dbg(&pdev->dev, "PORT STP UInit.\n");
+}
+
+static const struct dfl_feature_id port_stp_id_table[] = {
+	{.id = PORT_FEATURE_ID_STP,},
+	{0,}
+};
+
+static const struct dfl_feature_ops port_stp_ops = {
+	.init = port_stp_init,
+	.uinit = port_stp_uinit,
+};
+
 static struct dfl_feature_driver port_feature_drvs[] = {
 	{
 		.id_table = port_hdr_id_table,
@@ -528,6 +558,10 @@ static void port_afu_uinit(struct platform_device *pdev,
 		.ops = &port_err_ops,
 	},
 	{
+		.id_table = port_stp_id_table,
+		.ops = &port_stp_ops,
+	},
+	{
 		.ops = NULL,
 	}
 };
-- 
1.8.3.1


  parent reply	other threads:[~2019-07-05  0:42 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-07-05  0:23 [PATCH v2 00/11] FPGA DFL updates Wu Hao
2019-07-05  0:23 ` [PATCH v2 01/11] fpga: dfl: fme: support 512bit data width PR Wu Hao
2019-07-05  0:23 ` [PATCH v2 02/11] fpga: dfl: fme: add DFL_FPGA_FME_PORT_RELEASE/ASSIGN ioctl support Wu Hao
2019-07-05  0:23 ` [PATCH v2 03/11] fpga: dfl: pci: enable SRIOV support Wu Hao
2019-07-05  0:23 ` [PATCH v2 04/11] fpga: dfl: afu: add AFU state related sysfs interfaces Wu Hao
2019-07-05  0:23 ` [PATCH v2 05/11] fpga: dfl: afu: add userclock " Wu Hao
2019-07-05  0:23 ` [PATCH v2 06/11] fpga: dfl: add id_table for dfl private feature driver Wu Hao
2019-07-05  0:23 ` [PATCH v2 07/11] fpga: dfl: afu: export __port_enable/disable function Wu Hao
2019-07-05  0:23 ` [PATCH v2 08/11] fpga: dfl: afu: add error reporting support Wu Hao
2019-07-05  0:23 ` Wu Hao [this message]
2019-07-05  0:23 ` [PATCH v2 10/11] fpga: dfl: fme: add capability sysfs interfaces Wu Hao
2019-07-05  0:23 ` [PATCH v2 11/11] fpga: dfl: fme: add global error reporting support Wu Hao
2019-07-10  5:07 ` [PATCH v2 00/11] FPGA DFL updates Wu Hao
2019-07-10  5:54   ` Greg KH
2019-07-10  7:22     ` Wu Hao

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