From: Wu Hao <hao.wu@intel.com>
To: mdf@kernel.org, linux-fpga@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: linux-api@vger.kernel.org, yilun.xu@intel.com, hao.wu@intel.com,
gregkh@linuxfoundation.org, atull@kernel.org
Subject: [PATCH v4 13/15] fpga: dfl: afu: add STP (SignalTap) support
Date: Thu, 27 Jun 2019 12:44:53 +0800 [thread overview]
Message-ID: <1561610695-5414-14-git-send-email-hao.wu@intel.com> (raw)
In-Reply-To: <1561610695-5414-1-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>
---
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 bcf6e28..8241ace 100644
--- a/drivers/fpga/dfl-afu-main.c
+++ b/drivers/fpga/dfl-afu-main.c
@@ -513,6 +513,36 @@ 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,
@@ -527,6 +557,10 @@ 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
next prev parent reply other threads:[~2019-06-27 5:02 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-27 4:44 [PATCH v4 00/15] add new features for FPGA DFL drivers Wu Hao
2019-06-27 4:44 ` [PATCH v4 01/15] fpga: dfl-fme-mgr: fix FME_PR_INTFC_ID register address Wu Hao
2019-06-27 4:44 ` [PATCH v4 02/15] fpga: dfl: fme: remove copy_to_user() in ioctl for PR Wu Hao
2019-06-27 4:44 ` [PATCH v4 03/15] fpga: dfl: fme: align PR buffer size per PR datawidth Wu Hao
2019-06-27 4:44 ` [PATCH v4 04/15] fpga: dfl: fme: support 512bit data width PR Wu Hao
2019-06-27 4:44 ` [PATCH v4 05/15] Documentation: fpga: dfl: add descriptions for virtualization and new interfaces Wu Hao
2019-06-28 1:12 ` Moritz Fischer
2019-06-28 1:12 ` Moritz Fischer
2019-06-28 2:13 ` Wu Hao
2019-07-01 6:30 ` Wu Hao
2019-06-27 4:44 ` [PATCH v4 06/15] fpga: dfl: fme: add DFL_FPGA_FME_PORT_RELEASE/ASSIGN ioctl support Wu Hao
2019-06-27 4:44 ` [PATCH v4 07/15] fpga: dfl: pci: enable SRIOV support Wu Hao
2019-06-27 4:44 ` [PATCH v4 08/15] fpga: dfl: afu: add AFU state related sysfs interfaces Wu Hao
2019-06-27 4:44 ` [PATCH v4 09/15] fpga: dfl: afu: add userclock " Wu Hao
2019-06-27 4:44 ` [PATCH v4 10/15] fpga: dfl: add id_table for dfl private feature driver Wu Hao
2019-06-27 4:44 ` [PATCH v4 11/15] fpga: dfl: afu: export __port_enable/disable function Wu Hao
2019-06-27 4:44 ` [PATCH v4 12/15] fpga: dfl: afu: add error reporting support Wu Hao
2019-06-27 4:44 ` Wu Hao [this message]
2019-06-27 4:44 ` [PATCH v4 14/15] fpga: dfl: fme: add capability sysfs interfaces Wu Hao
2019-06-27 4:44 ` [PATCH v4 15/15] fpga: dfl: fme: add global error reporting support Wu Hao
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