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,
linux-doc@vger.kernel.org, atull@kernel.org,
Wu Hao <hao.wu@intel.com>, Xu Yilun <yilun.xu@intel.com>
Subject: [PATCH v4 09/12] fpga: dfl: afu: add STP (SignalTap) support
Date: Sun, 4 Aug 2019 18:20:19 +0800 [thread overview]
Message-ID: <1564914022-3710-10-git-send-email-hao.wu@intel.com> (raw)
In-Reply-To: <1564914022-3710-1-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>
---
v4: remove uinit callback which does nothing.
remove dev_dbg in init callback function.
---
drivers/fpga/dfl-afu-main.c | 25 +++++++++++++++++++++++++
1 file changed, 25 insertions(+)
diff --git a/drivers/fpga/dfl-afu-main.c b/drivers/fpga/dfl-afu-main.c
index b14df11..e44e31f 100644
--- a/drivers/fpga/dfl-afu-main.c
+++ b/drivers/fpga/dfl-afu-main.c
@@ -514,6 +514,27 @@ 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];
+
+ 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 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,
+};
+
static struct dfl_feature_driver port_feature_drvs[] = {
{
.id_table = port_hdr_id_table,
@@ -528,6 +549,10 @@ 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:[~2019-08-04 10:38 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-04 10:20 [PATCH v4 00/12] FPGA DFL updates Wu Hao
2019-08-04 10:20 ` [PATCH v4 01/12] fpga: dfl: fme: add DFL_FPGA_FME_PORT_RELEASE/ASSIGN ioctl support Wu Hao
2019-08-04 10:20 ` [PATCH v4 02/12] fpga: dfl: pci: enable SRIOV support Wu Hao
2019-08-04 10:20 ` [PATCH v4 03/12] fpga: dfl: afu: add AFU state related sysfs interfaces Wu Hao
2019-08-04 10:20 ` [PATCH v4 04/12] fpga: dfl: afu: add userclock " Wu Hao
2019-08-05 15:51 ` Greg KH
2019-08-07 2:18 ` Wu Hao
2019-08-04 10:20 ` [PATCH v4 05/12] fpga: dfl: add id_table for dfl private feature driver Wu Hao
2019-08-04 10:20 ` [PATCH v4 06/12] fpga: dfl: afu: export __port_enable/disable function Wu Hao
2019-08-05 15:52 ` Greg KH
2019-08-07 2:21 ` Wu Hao
2019-08-04 10:20 ` [PATCH v4 07/12] fpga: dfl: afu: add error reporting support Wu Hao
2019-08-05 15:54 ` Greg KH
2019-08-07 2:35 ` Wu Hao
2019-08-04 10:20 ` [PATCH v4 08/12] fpga: dfl: make uinit callback optional Wu Hao
2019-08-09 19:51 ` Moritz Fischer
2019-08-04 10:20 ` Wu Hao [this message]
2019-08-04 10:20 ` [PATCH v4 10/12] fpga: dfl: fme: add capability sysfs interfaces Wu Hao
2019-08-04 10:20 ` [PATCH v4 11/12] fpga: dfl: fme: add global error reporting support Wu Hao
2019-08-05 15:56 ` Greg KH
2019-08-07 2:45 ` Wu Hao
2019-08-07 8:08 ` Wu Hao
2019-08-07 9:30 ` Greg KH
2019-08-04 10:20 ` [PATCH v4 12/12] Documentation: fpga: dfl: add descriptions for virtualization and new interfaces Wu Hao
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