From: Peng Fan <[email protected]>
V6:
Add R-b tag from Mathieu
Convert imx-rproc.txt to yaml and add dt-bindings support for i.MX8MQ/M, patch 1/10 2/10
No other changes.
V5:
Apply on Linux next
Add V5 subject prefix
Add R-b tag from Bjorn for 1/8, 2/8, 3/8
https://patchwork.kernel.org/project/linux-remoteproc/cover/[email protected]/
V4:
According to Bjorn's comments, add is_iomem for da to va usage
1/8, 2/8 is new patch
3/8, follow Bjorn's comments to correct/update the err msg.
6/8, new patch
8/8, use dev_err_probe to simplify code, use queue_work instead schedule_delayed_work
V3:
Since I was quite busy in the past days, V3 is late
Rebased on Linux-next
Add R-b tags
1/7: Add R-b tag of Mathieu, add comments
4/7: Typo fix
5/7: Add R-b tag of Mathieu, drop index Per Mathieu's comments
6/7: Add R-b tag of Mathieu
7/7: Add comment for vqid << 16, drop unneeded timeout settings of mailbox
Use queue_work instead of schedule_delayed_work
free mbox channels when remove
https://lkml.org/lkml/2020/12/4/82
V2:
Rebased on linux-next
Dropped early boot feature to make patchset simple.
Drop rsc-da
https://patchwork.kernel.org/project/linux-remoteproc/cover/[email protected]/
V1:
https://patchwork.kernel.org/cover/11682461/
This patchset is to support i.MX8MQ/M coproc.
The early boot feature was dropped to make the patchset small in V2.
Since i.MX specific TCM memory requirement, add elf platform hook.
Several patches have got reviewed by Oleksij and Mathieu in v1.
Peng Fan (10):
dt-bindings: remoteproc: convert imx rproc bindings to json-schema
dt-bindings: remoteproc: imx_rproc: add i.MX8MQ/M support
remoteproc: introduce is_iomem to rproc_mem_entry
remoteproc: add is_iomem to da_to_va
remoteproc: imx_rproc: correct err message
remoteproc: imx_rproc: use devm_ioremap
remoteproc: imx_rproc: add i.MX specific parse fw hook
remoteproc: imx_rproc: support i.MX8MQ/M
remoteproc: imx_rproc: ignore mapping vdev regions
remoteproc: imx_proc: enable virtio/mailbox
.../bindings/remoteproc/fsl,imx-rproc.yaml | 108 ++++++++
.../bindings/remoteproc/imx-rproc.txt | 33 ---
drivers/remoteproc/imx_rproc.c | 259 +++++++++++++++++-
drivers/remoteproc/ingenic_rproc.c | 2 +-
drivers/remoteproc/keystone_remoteproc.c | 2 +-
drivers/remoteproc/mtk_scp.c | 6 +-
drivers/remoteproc/omap_remoteproc.c | 2 +-
drivers/remoteproc/pru_rproc.c | 2 +-
drivers/remoteproc/qcom_q6v5_adsp.c | 2 +-
drivers/remoteproc/qcom_q6v5_pas.c | 2 +-
drivers/remoteproc/qcom_q6v5_wcss.c | 2 +-
drivers/remoteproc/qcom_wcnss.c | 2 +-
drivers/remoteproc/remoteproc_core.c | 7 +-
drivers/remoteproc/remoteproc_coredump.c | 8 +-
drivers/remoteproc/remoteproc_debugfs.c | 2 +-
drivers/remoteproc/remoteproc_elf_loader.c | 21 +-
drivers/remoteproc/remoteproc_internal.h | 2 +-
drivers/remoteproc/st_slim_rproc.c | 2 +-
drivers/remoteproc/ti_k3_dsp_remoteproc.c | 2 +-
drivers/remoteproc/ti_k3_r5_remoteproc.c | 2 +-
drivers/remoteproc/wkup_m3_rproc.c | 2 +-
include/linux/remoteproc.h | 4 +-
22 files changed, 406 insertions(+), 68 deletions(-)
create mode 100644 Documentation/devicetree/bindings/remoteproc/fsl,imx-rproc.yaml
delete mode 100644 Documentation/devicetree/bindings/remoteproc/imx-rproc.txt
--
2.28.0
From: Peng Fan <[email protected]>
We might need to map an region multiple times, becaue the region might
be shared between remote processors, such i.MX8QM with dual M4 cores.
So use devm_ioremap, not devm_ioremap_resource.
Reviewed-by: Oleksij Rempel <[email protected]>
Reviewed-by: Richard Zhu <[email protected]>
Signed-off-by: Peng Fan <[email protected]>
Reviewed-by: Mathieu Poirier <[email protected]>
---
drivers/remoteproc/imx_rproc.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/remoteproc/imx_rproc.c b/drivers/remoteproc/imx_rproc.c
index 2a093cea4997..47fc1d06be6a 100644
--- a/drivers/remoteproc/imx_rproc.c
+++ b/drivers/remoteproc/imx_rproc.c
@@ -296,7 +296,8 @@ static int imx_rproc_addr_init(struct imx_rproc *priv,
if (b >= IMX7D_RPROC_MEM_MAX)
break;
- priv->mem[b].cpu_addr = devm_ioremap_resource(&pdev->dev, &res);
+ /* Not use resource version, because we might share region */
+ priv->mem[b].cpu_addr = devm_ioremap(&pdev->dev, res.start, resource_size(&res));
if (IS_ERR(priv->mem[b].cpu_addr)) {
dev_err(dev, "failed to remap %pr\n", &res);
err = PTR_ERR(priv->mem[b].cpu_addr);
--
2.28.0
From: Peng Fan <[email protected]>
Convert the imx rproc binding to DT schema format using json-schema.
Signed-off-by: Peng Fan <[email protected]>
---
.../bindings/remoteproc/fsl,imx-rproc.yaml | 59 +++++++++++++++++++
.../bindings/remoteproc/imx-rproc.txt | 33 -----------
2 files changed, 59 insertions(+), 33 deletions(-)
create mode 100644 Documentation/devicetree/bindings/remoteproc/fsl,imx-rproc.yaml
delete mode 100644 Documentation/devicetree/bindings/remoteproc/imx-rproc.txt
diff --git a/Documentation/devicetree/bindings/remoteproc/fsl,imx-rproc.yaml b/Documentation/devicetree/bindings/remoteproc/fsl,imx-rproc.yaml
new file mode 100644
index 000000000000..bce6ccfe1538
--- /dev/null
+++ b/Documentation/devicetree/bindings/remoteproc/fsl,imx-rproc.yaml
@@ -0,0 +1,59 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/remoteproc/fsl,imx-rproc.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: NXP iMX6SX/iMX7D Co-Processor Bindings
+
+description:
+ This binding provides support for ARM Cortex M4 Co-processor found on some NXP iMX SoCs.
+
+maintainers:
+ - Peng Fan <[email protected]>
+
+properties:
+ compatible:
+ enum:
+ - fsl,imx7d-cm4
+ - fsl,imx6sx-cm4
+
+ clocks:
+ description:
+ Clock for co-processor (See ../clock/clock-bindings.txt)
+
+ syscon:
+ description:
+ Phandle to syscon block which provide access to System Reset Controller
+
+ memory-region:
+ description:
+ list of phandels to the reserved memory regions.
+ (see ../reserved-memory/reserved-memory.txt)
+
+required:
+ - compatible
+ - clocks
+ - syscon
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/imx7d-clock.h>
+ m4_reserved_sysmem1: cm4@80000000 {
+ reg = <0x80000000 0x80000>;
+ };
+
+ m4_reserved_sysmem2: cm4@81000000 {
+ reg = <0x81000000 0x80000>;
+ };
+
+ imx7d-cm4 {
+ compatible = "fsl,imx7d-cm4";
+ memory-region = <&m4_reserved_sysmem1>, <&m4_reserved_sysmem2>;
+ syscon = <&src>;
+ clocks = <&clks IMX7D_ARM_M4_ROOT_CLK>;
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/remoteproc/imx-rproc.txt b/Documentation/devicetree/bindings/remoteproc/imx-rproc.txt
deleted file mode 100644
index fbcefd965dc4..000000000000
--- a/Documentation/devicetree/bindings/remoteproc/imx-rproc.txt
+++ /dev/null
@@ -1,33 +0,0 @@
-NXP iMX6SX/iMX7D Co-Processor Bindings
-----------------------------------------
-
-This binding provides support for ARM Cortex M4 Co-processor found on some
-NXP iMX SoCs.
-
-Required properties:
-- compatible Should be one of:
- "fsl,imx7d-cm4"
- "fsl,imx6sx-cm4"
-- clocks Clock for co-processor (See: ../clock/clock-bindings.txt)
-- syscon Phandle to syscon block which provide access to
- System Reset Controller
-
-Optional properties:
-- memory-region list of phandels to the reserved memory regions.
- (See: ../reserved-memory/reserved-memory.txt)
-
-Example:
- m4_reserved_sysmem1: cm4@80000000 {
- reg = <0x80000000 0x80000>;
- };
-
- m4_reserved_sysmem2: cm4@81000000 {
- reg = <0x81000000 0x80000>;
- };
-
- imx7d-cm4 {
- compatible = "fsl,imx7d-cm4";
- memory-region = <&m4_reserved_sysmem1>, <&m4_reserved_sysmem2>;
- syscon = <&src>;
- clocks = <&clks IMX7D_ARM_M4_ROOT_CLK>;
- };
--
2.28.0
From: Peng Fan <[email protected]>
vdev regions are vdev0vring0, vdev0vring1, vdevbuffer and similar.
They are handled by remoteproc common code, no need to map in imx
rproc driver.
Signed-off-by: Peng Fan <[email protected]>
---
drivers/remoteproc/imx_rproc.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/remoteproc/imx_rproc.c b/drivers/remoteproc/imx_rproc.c
index f80428afb8a7..e62a53ee128e 100644
--- a/drivers/remoteproc/imx_rproc.c
+++ b/drivers/remoteproc/imx_rproc.c
@@ -417,6 +417,9 @@ static int imx_rproc_addr_init(struct imx_rproc *priv,
struct resource res;
node = of_parse_phandle(np, "memory-region", a);
+ /* Not map vdev region */
+ if (!strcmp(node->name, "vdev"))
+ continue;
err = of_address_to_resource(node, 0, &res);
if (err) {
dev_err(dev, "unable to resolve memory region\n");
--
2.28.0
From: Peng Fan <[email protected]>
Add i.MX8MQ dev/sys addr map and configuration data structure
i.MX8MM share i.MX8MQ settings.
Reviewed-by: Richard Zhu <[email protected]>
Signed-off-by: Peng Fan <[email protected]>
Reviewed-by: Mathieu Poirier <[email protected]>
---
drivers/remoteproc/imx_rproc.c | 39 ++++++++++++++++++++++++++++++++++
1 file changed, 39 insertions(+)
diff --git a/drivers/remoteproc/imx_rproc.c b/drivers/remoteproc/imx_rproc.c
index 3c0075dc1787..f80428afb8a7 100644
--- a/drivers/remoteproc/imx_rproc.c
+++ b/drivers/remoteproc/imx_rproc.c
@@ -88,6 +88,34 @@ struct imx_rproc {
struct clk *clk;
};
+static const struct imx_rproc_att imx_rproc_att_imx8mq[] = {
+ /* dev addr , sys addr , size , flags */
+ /* TCML - alias */
+ { 0x00000000, 0x007e0000, 0x00020000, 0 },
+ /* OCRAM_S */
+ { 0x00180000, 0x00180000, 0x00008000, 0 },
+ /* OCRAM */
+ { 0x00900000, 0x00900000, 0x00020000, 0 },
+ /* OCRAM */
+ { 0x00920000, 0x00920000, 0x00020000, 0 },
+ /* QSPI Code - alias */
+ { 0x08000000, 0x08000000, 0x08000000, 0 },
+ /* DDR (Code) - alias */
+ { 0x10000000, 0x80000000, 0x0FFE0000, 0 },
+ /* TCML */
+ { 0x1FFE0000, 0x007E0000, 0x00020000, ATT_OWN },
+ /* TCMU */
+ { 0x20000000, 0x00800000, 0x00020000, ATT_OWN },
+ /* OCRAM_S */
+ { 0x20180000, 0x00180000, 0x00008000, ATT_OWN },
+ /* OCRAM */
+ { 0x20200000, 0x00900000, 0x00020000, ATT_OWN },
+ /* OCRAM */
+ { 0x20220000, 0x00920000, 0x00020000, ATT_OWN },
+ /* DDR (Data) */
+ { 0x40000000, 0x40000000, 0x80000000, 0 },
+};
+
static const struct imx_rproc_att imx_rproc_att_imx7d[] = {
/* dev addr , sys addr , size , flags */
/* OCRAM_S (M4 Boot code) - alias */
@@ -138,6 +166,15 @@ static const struct imx_rproc_att imx_rproc_att_imx6sx[] = {
{ 0x80000000, 0x80000000, 0x60000000, 0 },
};
+static const struct imx_rproc_dcfg imx_rproc_cfg_imx8mq = {
+ .src_reg = IMX7D_SRC_SCR,
+ .src_mask = IMX7D_M4_RST_MASK,
+ .src_start = IMX7D_M4_START,
+ .src_stop = IMX7D_M4_STOP,
+ .att = imx_rproc_att_imx8mq,
+ .att_size = ARRAY_SIZE(imx_rproc_att_imx8mq),
+};
+
static const struct imx_rproc_dcfg imx_rproc_cfg_imx7d = {
.src_reg = IMX7D_SRC_SCR,
.src_mask = IMX7D_M4_RST_MASK,
@@ -496,6 +533,8 @@ static int imx_rproc_remove(struct platform_device *pdev)
static const struct of_device_id imx_rproc_of_match[] = {
{ .compatible = "fsl,imx7d-cm4", .data = &imx_rproc_cfg_imx7d },
{ .compatible = "fsl,imx6sx-cm4", .data = &imx_rproc_cfg_imx6sx },
+ { .compatible = "fsl,imx8mq-cm4", .data = &imx_rproc_cfg_imx8mq },
+ { .compatible = "fsl,imx8mm-cm4", .data = &imx_rproc_cfg_imx8mq },
{},
};
MODULE_DEVICE_TABLE(of, imx_rproc_of_match);
--
2.28.0
From: Peng Fan <[email protected]>
Add i.MX8MQ/M support, also include mailbox for rpmsg/virtio usage.
Signed-off-by: Peng Fan <[email protected]>
---
.../bindings/remoteproc/fsl,imx-rproc.yaml | 49 +++++++++++++++++++
1 file changed, 49 insertions(+)
diff --git a/Documentation/devicetree/bindings/remoteproc/fsl,imx-rproc.yaml b/Documentation/devicetree/bindings/remoteproc/fsl,imx-rproc.yaml
index bce6ccfe1538..0b534ce227af 100644
--- a/Documentation/devicetree/bindings/remoteproc/fsl,imx-rproc.yaml
+++ b/Documentation/devicetree/bindings/remoteproc/fsl,imx-rproc.yaml
@@ -15,6 +15,8 @@ maintainers:
properties:
compatible:
enum:
+ - fsl,imx8mq-cm4
+ - fsl,imx8mm-cm4
- fsl,imx7d-cm4
- fsl,imx6sx-cm4
@@ -26,6 +28,20 @@ properties:
description:
Phandle to syscon block which provide access to System Reset Controller
+ mbox-names:
+ items:
+ - const: tx
+ - const: rx
+ - const: rxdb
+
+ mboxes:
+ description:
+ This property is required only if the rpmsg/virtio functionality is used.
+ List of <&phandle type channel> - 1 channel for TX, 1 channel for RX, 1 channel for RXDB.
+ (see mailbox/fsl,mu.yaml)
+ minItems: 1
+ maxItems: 3
+
memory-region:
description:
list of phandels to the reserved memory regions.
@@ -56,4 +72,37 @@ examples:
clocks = <&clks IMX7D_ARM_M4_ROOT_CLK>;
};
+ - |
+ #include <dt-bindings/clock/imx8mm-clock.h>
+ rsc_table: rsc_table@550ff000 {
+ no-map;
+ reg = <0x550ff000 0x1000>;
+ };
+
+ vdev0vring0: vdev0vring0@55000000 {
+ no-map;
+ reg = <0x55000000 0x8000>;
+ };
+
+ vdev0vring1: vdev0vring1@55008000 {
+ reg = <0x55008000 0x8000>;
+ no-map;
+ };
+
+ vdevbuffer: vdevbuffer@55400000 {
+ compatible = "shared-dma-pool";
+ reg = <0x55400000 0x100000>;
+ no-map;
+ };
+
+ imx8mm-cm4 {
+ compatible = "fsl,imx8mm-cm4";
+ clocks = <&clk IMX8MM_CLK_M4_DIV>;
+ mbox-names = "tx", "rx", "rxdb";
+ mboxes = <&mu 0 1
+ &mu 1 1
+ &mu 3 1>;
+ memory-region = <&vdevbuffer>, <&vdev0vring0>, <&vdev0vring1>, <&rsc_table>;
+ syscon = <&src>;
+ };
...
--
2.28.0
From: Peng Fan <[email protected]>
Use virtio/mailbox to build connection between Remote Proccessors
and Linux. Add work queue to handle incoming messages.
Reviewed-by: Richard Zhu <[email protected]>
Signed-off-by: Peng Fan <[email protected]>
---
drivers/remoteproc/imx_rproc.c | 115 ++++++++++++++++++++++++++++++++-
1 file changed, 112 insertions(+), 3 deletions(-)
diff --git a/drivers/remoteproc/imx_rproc.c b/drivers/remoteproc/imx_rproc.c
index e62a53ee128e..812b077f1282 100644
--- a/drivers/remoteproc/imx_rproc.c
+++ b/drivers/remoteproc/imx_rproc.c
@@ -7,6 +7,7 @@
#include <linux/err.h>
#include <linux/interrupt.h>
#include <linux/kernel.h>
+#include <linux/mailbox_client.h>
#include <linux/mfd/syscon.h>
#include <linux/module.h>
#include <linux/of_address.h>
@@ -15,6 +16,9 @@
#include <linux/platform_device.h>
#include <linux/regmap.h>
#include <linux/remoteproc.h>
+#include <linux/workqueue.h>
+
+#include "remoteproc_internal.h"
#define IMX7D_SRC_SCR 0x0C
#define IMX7D_ENABLE_M4 BIT(3)
@@ -86,6 +90,11 @@ struct imx_rproc {
const struct imx_rproc_dcfg *dcfg;
struct imx_rproc_mem mem[IMX7D_RPROC_MEM_MAX];
struct clk *clk;
+ struct mbox_client cl;
+ struct mbox_chan *tx_ch;
+ struct mbox_chan *rx_ch;
+ struct work_struct rproc_work;
+ struct workqueue_struct *workqueue;
};
static const struct imx_rproc_att imx_rproc_att_imx8mq[] = {
@@ -366,9 +375,33 @@ static int imx_rproc_parse_fw(struct rproc *rproc, const struct firmware *fw)
return 0;
}
+static void imx_rproc_kick(struct rproc *rproc, int vqid)
+{
+ struct imx_rproc *priv = rproc->priv;
+ int err;
+ __u32 mmsg;
+
+ if (!priv->tx_ch) {
+ dev_err(priv->dev, "No initialized mbox tx channel\n");
+ return;
+ }
+
+ /*
+ * Send the index of the triggered virtqueue as the mu payload.
+ * Let remote processor know which virtqueue is used.
+ */
+ mmsg = vqid << 16;
+
+ err = mbox_send_message(priv->tx_ch, (void *)&mmsg);
+ if (err < 0)
+ dev_err(priv->dev, "%s: failed (%d, err:%d)\n",
+ __func__, vqid, err);
+}
+
static const struct rproc_ops imx_rproc_ops = {
.start = imx_rproc_start,
.stop = imx_rproc_stop,
+ .kick = imx_rproc_kick,
.da_to_va = imx_rproc_da_to_va,
.load = rproc_elf_load_segments,
.parse_fw = imx_rproc_parse_fw,
@@ -444,6 +477,65 @@ static int imx_rproc_addr_init(struct imx_rproc *priv,
return 0;
}
+static void imx_rproc_vq_work(struct work_struct *work)
+{
+ struct imx_rproc *priv = container_of(work, struct imx_rproc,
+ rproc_work);
+
+ rproc_vq_interrupt(priv->rproc, 0);
+ rproc_vq_interrupt(priv->rproc, 1);
+}
+
+static void imx_rproc_rx_callback(struct mbox_client *cl, void *msg)
+{
+ struct rproc *rproc = dev_get_drvdata(cl->dev);
+ struct imx_rproc *priv = rproc->priv;
+
+ queue_work(priv->workqueue, &priv->rproc_work);
+}
+
+static int imx_rproc_xtr_mbox_init(struct rproc *rproc)
+{
+ struct imx_rproc *priv = rproc->priv;
+ struct device *dev = priv->dev;
+ struct mbox_client *cl;
+ int ret;
+
+ if (!of_get_property(dev->of_node, "mbox-names", NULL))
+ return 0;
+
+ cl = &priv->cl;
+ cl->dev = dev;
+ cl->tx_block = true;
+ cl->tx_tout = 100;
+ cl->knows_txdone = false;
+ cl->rx_callback = imx_rproc_rx_callback;
+
+ priv->tx_ch = mbox_request_channel_byname(cl, "tx");
+ if (IS_ERR(priv->tx_ch)) {
+ ret = PTR_ERR(priv->tx_ch);
+ return dev_err_probe(cl->dev, PTR_ERR(priv->tx_ch),
+ "failed to request tx mailbox channel: %d\n", ret);
+ }
+
+ priv->rx_ch = mbox_request_channel_byname(cl, "rx");
+ if (IS_ERR(priv->rx_ch)) {
+ mbox_free_channel(priv->tx_ch);
+ return dev_err_probe(cl->dev, PTR_ERR(priv->rx_ch),
+ "failed to request mbox tx chan\n");
+ }
+
+ return 0;
+}
+
+static void imx_rproc_free_mbox(struct rproc *rproc)
+{
+ struct imx_rproc *priv = rproc->priv;
+
+ mbox_free_channel(priv->tx_ch);
+ mbox_free_channel(priv->rx_ch);
+}
+
static int imx_rproc_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
@@ -481,18 +573,28 @@ static int imx_rproc_probe(struct platform_device *pdev)
priv->dev = dev;
dev_set_drvdata(dev, rproc);
+ priv->workqueue = create_workqueue(dev_name(dev));
+ if (!priv->workqueue) {
+ dev_err(dev, "cannot create workqueue\n");
+ ret = -ENOMEM;
+ goto err_put_rproc;
+ }
+
+ ret = imx_rproc_xtr_mbox_init(rproc);
+ if (ret)
+ goto err_put_wkq;
ret = imx_rproc_addr_init(priv, pdev);
if (ret) {
dev_err(dev, "failed on imx_rproc_addr_init\n");
- goto err_put_rproc;
+ goto err_put_mbox;
}
priv->clk = devm_clk_get(dev, NULL);
if (IS_ERR(priv->clk)) {
dev_err(dev, "Failed to get clock\n");
ret = PTR_ERR(priv->clk);
- goto err_put_rproc;
+ goto err_put_mbox;
}
/*
@@ -502,9 +604,11 @@ static int imx_rproc_probe(struct platform_device *pdev)
ret = clk_prepare_enable(priv->clk);
if (ret) {
dev_err(&rproc->dev, "Failed to enable clock\n");
- goto err_put_rproc;
+ goto err_put_mbox;
}
+ INIT_WORK(&(priv->rproc_work), imx_rproc_vq_work);
+
ret = rproc_add(rproc);
if (ret) {
dev_err(dev, "rproc_add failed\n");
@@ -515,6 +619,10 @@ static int imx_rproc_probe(struct platform_device *pdev)
err_put_clk:
clk_disable_unprepare(priv->clk);
+err_put_mbox:
+ imx_rproc_free_mbox(rproc);
+err_put_wkq:
+ destroy_workqueue(priv->workqueue);
err_put_rproc:
rproc_free(rproc);
@@ -527,6 +635,7 @@ static int imx_rproc_remove(struct platform_device *pdev)
struct imx_rproc *priv = rproc->priv;
clk_disable_unprepare(priv->clk);
+ imx_rproc_free_mbox(rproc);
rproc_del(rproc);
rproc_free(rproc);
--
2.28.0
From: Peng Fan <[email protected]>
Introduce an extra parameter is_iomem to da_to_va, then the caller
could take the memory as normal memory or io mapped memory.
Reviewed-by: Bjorn Andersson <[email protected]>
Signed-off-by: Peng Fan <[email protected]>
Reported-by: kernel test robot <[email protected]>
Reported-by: kernel test robot <[email protected]>
Reviewed-by: Mathieu Poirier <[email protected]>
---
drivers/remoteproc/imx_rproc.c | 2 +-
drivers/remoteproc/ingenic_rproc.c | 2 +-
drivers/remoteproc/keystone_remoteproc.c | 2 +-
drivers/remoteproc/mtk_scp.c | 6 +++---
drivers/remoteproc/omap_remoteproc.c | 2 +-
drivers/remoteproc/pru_rproc.c | 2 +-
drivers/remoteproc/qcom_q6v5_adsp.c | 2 +-
drivers/remoteproc/qcom_q6v5_pas.c | 2 +-
drivers/remoteproc/qcom_q6v5_wcss.c | 2 +-
drivers/remoteproc/qcom_wcnss.c | 2 +-
drivers/remoteproc/remoteproc_core.c | 7 +++++--
drivers/remoteproc/remoteproc_coredump.c | 8 ++++++--
drivers/remoteproc/remoteproc_debugfs.c | 2 +-
drivers/remoteproc/remoteproc_elf_loader.c | 21 +++++++++++++++------
drivers/remoteproc/remoteproc_internal.h | 2 +-
drivers/remoteproc/st_slim_rproc.c | 2 +-
drivers/remoteproc/ti_k3_dsp_remoteproc.c | 2 +-
drivers/remoteproc/ti_k3_r5_remoteproc.c | 2 +-
drivers/remoteproc/wkup_m3_rproc.c | 2 +-
include/linux/remoteproc.h | 2 +-
20 files changed, 45 insertions(+), 29 deletions(-)
diff --git a/drivers/remoteproc/imx_rproc.c b/drivers/remoteproc/imx_rproc.c
index 8957ed271d20..6603e00bb6f4 100644
--- a/drivers/remoteproc/imx_rproc.c
+++ b/drivers/remoteproc/imx_rproc.c
@@ -208,7 +208,7 @@ static int imx_rproc_da_to_sys(struct imx_rproc *priv, u64 da,
return -ENOENT;
}
-static void *imx_rproc_da_to_va(struct rproc *rproc, u64 da, size_t len)
+static void *imx_rproc_da_to_va(struct rproc *rproc, u64 da, size_t len, bool *is_iomem)
{
struct imx_rproc *priv = rproc->priv;
void *va = NULL;
diff --git a/drivers/remoteproc/ingenic_rproc.c b/drivers/remoteproc/ingenic_rproc.c
index 26e19e6143b7..bb5049295576 100644
--- a/drivers/remoteproc/ingenic_rproc.c
+++ b/drivers/remoteproc/ingenic_rproc.c
@@ -116,7 +116,7 @@ static void ingenic_rproc_kick(struct rproc *rproc, int vqid)
writel(vqid, vpu->aux_base + REG_CORE_MSG);
}
-static void *ingenic_rproc_da_to_va(struct rproc *rproc, u64 da, size_t len)
+static void *ingenic_rproc_da_to_va(struct rproc *rproc, u64 da, size_t len, bool *is_iomem)
{
struct vpu *vpu = rproc->priv;
void __iomem *va = NULL;
diff --git a/drivers/remoteproc/keystone_remoteproc.c b/drivers/remoteproc/keystone_remoteproc.c
index cd266163a65f..54781f553f4e 100644
--- a/drivers/remoteproc/keystone_remoteproc.c
+++ b/drivers/remoteproc/keystone_remoteproc.c
@@ -246,7 +246,7 @@ static void keystone_rproc_kick(struct rproc *rproc, int vqid)
* can be used either by the remoteproc core for loading (when using kernel
* remoteproc loader), or by any rpmsg bus drivers.
*/
-static void *keystone_rproc_da_to_va(struct rproc *rproc, u64 da, size_t len)
+static void *keystone_rproc_da_to_va(struct rproc *rproc, u64 da, size_t len, bool *is_iomem)
{
struct keystone_rproc *ksproc = rproc->priv;
void __iomem *va = NULL;
diff --git a/drivers/remoteproc/mtk_scp.c b/drivers/remoteproc/mtk_scp.c
index e0c235690361..535175f013e4 100644
--- a/drivers/remoteproc/mtk_scp.c
+++ b/drivers/remoteproc/mtk_scp.c
@@ -270,7 +270,7 @@ static int scp_elf_load_segments(struct rproc *rproc, const struct firmware *fw)
}
/* grab the kernel address for this device address */
- ptr = (void __iomem *)rproc_da_to_va(rproc, da, memsz);
+ ptr = (void __iomem *)rproc_da_to_va(rproc, da, memsz, NULL);
if (!ptr) {
dev_err(dev, "bad phdr da 0x%x mem 0x%x\n", da, memsz);
ret = -EINVAL;
@@ -458,7 +458,7 @@ static int scp_start(struct rproc *rproc)
return ret;
}
-static void *scp_da_to_va(struct rproc *rproc, u64 da, size_t len)
+static void *scp_da_to_va(struct rproc *rproc, u64 da, size_t len, bool *is_iomem)
{
struct mtk_scp *scp = (struct mtk_scp *)rproc->priv;
int offset;
@@ -587,7 +587,7 @@ void *scp_mapping_dm_addr(struct mtk_scp *scp, u32 mem_addr)
{
void *ptr;
- ptr = scp_da_to_va(scp->rproc, mem_addr, 0);
+ ptr = scp_da_to_va(scp->rproc, mem_addr, 0, NULL);
if (!ptr)
return ERR_PTR(-EINVAL);
diff --git a/drivers/remoteproc/omap_remoteproc.c b/drivers/remoteproc/omap_remoteproc.c
index d94b7391bf9d..43531caa1959 100644
--- a/drivers/remoteproc/omap_remoteproc.c
+++ b/drivers/remoteproc/omap_remoteproc.c
@@ -728,7 +728,7 @@ static int omap_rproc_stop(struct rproc *rproc)
* Return: translated virtual address in kernel memory space on success,
* or NULL on failure.
*/
-static void *omap_rproc_da_to_va(struct rproc *rproc, u64 da, size_t len)
+static void *omap_rproc_da_to_va(struct rproc *rproc, u64 da, size_t len, bool *is_iomem)
{
struct omap_rproc *oproc = rproc->priv;
int i;
diff --git a/drivers/remoteproc/pru_rproc.c b/drivers/remoteproc/pru_rproc.c
index 5fad787ba012..8df99318f18a 100644
--- a/drivers/remoteproc/pru_rproc.c
+++ b/drivers/remoteproc/pru_rproc.c
@@ -483,7 +483,7 @@ static void *pru_i_da_to_va(struct pru_rproc *pru, u32 da, size_t len)
* core for any PRU client drivers. The PRU Instruction RAM access is restricted
* only to the PRU loader code.
*/
-static void *pru_rproc_da_to_va(struct rproc *rproc, u64 da, size_t len)
+static void *pru_rproc_da_to_va(struct rproc *rproc, u64 da, size_t len, bool *is_iomem)
{
struct pru_rproc *pru = rproc->priv;
diff --git a/drivers/remoteproc/qcom_q6v5_adsp.c b/drivers/remoteproc/qcom_q6v5_adsp.c
index e02450225e4a..8b0d8bbacd2e 100644
--- a/drivers/remoteproc/qcom_q6v5_adsp.c
+++ b/drivers/remoteproc/qcom_q6v5_adsp.c
@@ -281,7 +281,7 @@ static int adsp_stop(struct rproc *rproc)
return ret;
}
-static void *adsp_da_to_va(struct rproc *rproc, u64 da, size_t len)
+static void *adsp_da_to_va(struct rproc *rproc, u64 da, size_t len, bool *is_iomem)
{
struct qcom_adsp *adsp = (struct qcom_adsp *)rproc->priv;
int offset;
diff --git a/drivers/remoteproc/qcom_q6v5_pas.c b/drivers/remoteproc/qcom_q6v5_pas.c
index ee586226e438..333a1e389fcd 100644
--- a/drivers/remoteproc/qcom_q6v5_pas.c
+++ b/drivers/remoteproc/qcom_q6v5_pas.c
@@ -242,7 +242,7 @@ static int adsp_stop(struct rproc *rproc)
return ret;
}
-static void *adsp_da_to_va(struct rproc *rproc, u64 da, size_t len)
+static void *adsp_da_to_va(struct rproc *rproc, u64 da, size_t len, bool *is_iomem)
{
struct qcom_adsp *adsp = (struct qcom_adsp *)rproc->priv;
int offset;
diff --git a/drivers/remoteproc/qcom_q6v5_wcss.c b/drivers/remoteproc/qcom_q6v5_wcss.c
index 78ebe1168b33..704cd63c9af4 100644
--- a/drivers/remoteproc/qcom_q6v5_wcss.c
+++ b/drivers/remoteproc/qcom_q6v5_wcss.c
@@ -410,7 +410,7 @@ static int q6v5_wcss_stop(struct rproc *rproc)
return 0;
}
-static void *q6v5_wcss_da_to_va(struct rproc *rproc, u64 da, size_t len)
+static void *q6v5_wcss_da_to_va(struct rproc *rproc, u64 da, size_t len, bool *is_iomem)
{
struct q6v5_wcss *wcss = rproc->priv;
int offset;
diff --git a/drivers/remoteproc/qcom_wcnss.c b/drivers/remoteproc/qcom_wcnss.c
index f95854255c70..1bf60dc84f69 100644
--- a/drivers/remoteproc/qcom_wcnss.c
+++ b/drivers/remoteproc/qcom_wcnss.c
@@ -320,7 +320,7 @@ static int wcnss_stop(struct rproc *rproc)
return ret;
}
-static void *wcnss_da_to_va(struct rproc *rproc, u64 da, size_t len)
+static void *wcnss_da_to_va(struct rproc *rproc, u64 da, size_t len, bool *is_iomem)
{
struct qcom_wcnss *wcnss = (struct qcom_wcnss *)rproc->priv;
int offset;
diff --git a/drivers/remoteproc/remoteproc_core.c b/drivers/remoteproc/remoteproc_core.c
index 2394eef383e3..9bec422ccce3 100644
--- a/drivers/remoteproc/remoteproc_core.c
+++ b/drivers/remoteproc/remoteproc_core.c
@@ -189,13 +189,13 @@ EXPORT_SYMBOL(rproc_va_to_pa);
* here the output of the DMA API for the carveouts, which should be more
* correct.
*/
-void *rproc_da_to_va(struct rproc *rproc, u64 da, size_t len)
+void *rproc_da_to_va(struct rproc *rproc, u64 da, size_t len, bool *is_iomem)
{
struct rproc_mem_entry *carveout;
void *ptr = NULL;
if (rproc->ops->da_to_va) {
- ptr = rproc->ops->da_to_va(rproc, da, len);
+ ptr = rproc->ops->da_to_va(rproc, da, len, is_iomem);
if (ptr)
goto out;
}
@@ -217,6 +217,9 @@ void *rproc_da_to_va(struct rproc *rproc, u64 da, size_t len)
ptr = carveout->va + offset;
+ if (is_iomem)
+ *is_iomem = carveout->is_iomem;
+
break;
}
diff --git a/drivers/remoteproc/remoteproc_coredump.c b/drivers/remoteproc/remoteproc_coredump.c
index 81ec154a6a5e..aee657cc08c6 100644
--- a/drivers/remoteproc/remoteproc_coredump.c
+++ b/drivers/remoteproc/remoteproc_coredump.c
@@ -153,18 +153,22 @@ static void rproc_copy_segment(struct rproc *rproc, void *dest,
size_t offset, size_t size)
{
void *ptr;
+ bool is_iomem;
if (segment->dump) {
segment->dump(rproc, segment, dest, offset, size);
} else {
- ptr = rproc_da_to_va(rproc, segment->da + offset, size);
+ ptr = rproc_da_to_va(rproc, segment->da + offset, size, &is_iomem);
if (!ptr) {
dev_err(&rproc->dev,
"invalid copy request for segment %pad with offset %zu and size %zu)\n",
&segment->da, offset, size);
memset(dest, 0xff, size);
} else {
- memcpy(dest, ptr, size);
+ if (is_iomem)
+ memcpy_fromio(dest, ptr, size);
+ else
+ memcpy(dest, ptr, size);
}
}
}
diff --git a/drivers/remoteproc/remoteproc_debugfs.c b/drivers/remoteproc/remoteproc_debugfs.c
index 7e5845376e9f..b5a1e3b697d9 100644
--- a/drivers/remoteproc/remoteproc_debugfs.c
+++ b/drivers/remoteproc/remoteproc_debugfs.c
@@ -132,7 +132,7 @@ static ssize_t rproc_trace_read(struct file *filp, char __user *userbuf,
char buf[100];
int len;
- va = rproc_da_to_va(data->rproc, trace->da, trace->len);
+ va = rproc_da_to_va(data->rproc, trace->da, trace->len, NULL);
if (!va) {
len = scnprintf(buf, sizeof(buf), "Trace %s not available\n",
diff --git a/drivers/remoteproc/remoteproc_elf_loader.c b/drivers/remoteproc/remoteproc_elf_loader.c
index df68d87752e4..c02d4fec93a9 100644
--- a/drivers/remoteproc/remoteproc_elf_loader.c
+++ b/drivers/remoteproc/remoteproc_elf_loader.c
@@ -175,6 +175,7 @@ int rproc_elf_load_segments(struct rproc *rproc, const struct firmware *fw)
u64 offset = elf_phdr_get_p_offset(class, phdr);
u32 type = elf_phdr_get_p_type(class, phdr);
void *ptr;
+ bool is_iomem;
if (type != PT_LOAD)
continue;
@@ -204,7 +205,7 @@ int rproc_elf_load_segments(struct rproc *rproc, const struct firmware *fw)
}
/* grab the kernel address for this device address */
- ptr = rproc_da_to_va(rproc, da, memsz);
+ ptr = rproc_da_to_va(rproc, da, memsz, &is_iomem);
if (!ptr) {
dev_err(dev, "bad phdr da 0x%llx mem 0x%llx\n", da,
memsz);
@@ -213,8 +214,12 @@ int rproc_elf_load_segments(struct rproc *rproc, const struct firmware *fw)
}
/* put the segment where the remote processor expects it */
- if (filesz)
- memcpy(ptr, elf_data + offset, filesz);
+ if (filesz) {
+ if (is_iomem)
+ memcpy_fromio(ptr, elf_data + offset, filesz);
+ else
+ memcpy(ptr, elf_data + offset, filesz);
+ }
/*
* Zero out remaining memory for this segment.
@@ -223,8 +228,12 @@ int rproc_elf_load_segments(struct rproc *rproc, const struct firmware *fw)
* did this for us. albeit harmless, we may consider removing
* this.
*/
- if (memsz > filesz)
- memset(ptr + filesz, 0, memsz - filesz);
+ if (memsz > filesz) {
+ if (is_iomem)
+ memset_io(ptr + filesz, 0, memsz - filesz);
+ else
+ memset(ptr + filesz, 0, memsz - filesz);
+ }
}
return ret;
@@ -377,6 +386,6 @@ struct resource_table *rproc_elf_find_loaded_rsc_table(struct rproc *rproc,
return NULL;
}
- return rproc_da_to_va(rproc, sh_addr, sh_size);
+ return rproc_da_to_va(rproc, sh_addr, sh_size, NULL);
}
EXPORT_SYMBOL(rproc_elf_find_loaded_rsc_table);
diff --git a/drivers/remoteproc/remoteproc_internal.h b/drivers/remoteproc/remoteproc_internal.h
index c34002888d2c..9ea37aa687d2 100644
--- a/drivers/remoteproc/remoteproc_internal.h
+++ b/drivers/remoteproc/remoteproc_internal.h
@@ -84,7 +84,7 @@ static inline void rproc_char_device_remove(struct rproc *rproc)
void rproc_free_vring(struct rproc_vring *rvring);
int rproc_alloc_vring(struct rproc_vdev *rvdev, int i);
-void *rproc_da_to_va(struct rproc *rproc, u64 da, size_t len);
+void *rproc_da_to_va(struct rproc *rproc, u64 da, size_t len, bool *is_iomem);
phys_addr_t rproc_va_to_pa(void *cpu_addr);
int rproc_trigger_recovery(struct rproc *rproc);
diff --git a/drivers/remoteproc/st_slim_rproc.c b/drivers/remoteproc/st_slim_rproc.c
index 09bcb4d8b9e0..22096adc1ad3 100644
--- a/drivers/remoteproc/st_slim_rproc.c
+++ b/drivers/remoteproc/st_slim_rproc.c
@@ -174,7 +174,7 @@ static int slim_rproc_stop(struct rproc *rproc)
return 0;
}
-static void *slim_rproc_da_to_va(struct rproc *rproc, u64 da, size_t len)
+static void *slim_rproc_da_to_va(struct rproc *rproc, u64 da, size_t len, bool *is_iomem)
{
struct st_slim_rproc *slim_rproc = rproc->priv;
void *va = NULL;
diff --git a/drivers/remoteproc/ti_k3_dsp_remoteproc.c b/drivers/remoteproc/ti_k3_dsp_remoteproc.c
index 863c0214e0a8..fd4eb67a6681 100644
--- a/drivers/remoteproc/ti_k3_dsp_remoteproc.c
+++ b/drivers/remoteproc/ti_k3_dsp_remoteproc.c
@@ -354,7 +354,7 @@ static int k3_dsp_rproc_stop(struct rproc *rproc)
* can be used either by the remoteproc core for loading (when using kernel
* remoteproc loader), or by any rpmsg bus drivers.
*/
-static void *k3_dsp_rproc_da_to_va(struct rproc *rproc, u64 da, size_t len)
+static void *k3_dsp_rproc_da_to_va(struct rproc *rproc, u64 da, size_t len, bool *is_iomem)
{
struct k3_dsp_rproc *kproc = rproc->priv;
void __iomem *va = NULL;
diff --git a/drivers/remoteproc/ti_k3_r5_remoteproc.c b/drivers/remoteproc/ti_k3_r5_remoteproc.c
index 62b5a4c29456..5cf8d030a1f0 100644
--- a/drivers/remoteproc/ti_k3_r5_remoteproc.c
+++ b/drivers/remoteproc/ti_k3_r5_remoteproc.c
@@ -590,7 +590,7 @@ static int k3_r5_rproc_stop(struct rproc *rproc)
* present in a DSP or IPU device). The translated addresses can be used
* either by the remoteproc core for loading, or by any rpmsg bus drivers.
*/
-static void *k3_r5_rproc_da_to_va(struct rproc *rproc, u64 da, size_t len)
+static void *k3_r5_rproc_da_to_va(struct rproc *rproc, u64 da, size_t len, bool *is_iomem)
{
struct k3_r5_rproc *kproc = rproc->priv;
struct k3_r5_core *core = kproc->core;
diff --git a/drivers/remoteproc/wkup_m3_rproc.c b/drivers/remoteproc/wkup_m3_rproc.c
index 92d387dfc03b..484f7605823e 100644
--- a/drivers/remoteproc/wkup_m3_rproc.c
+++ b/drivers/remoteproc/wkup_m3_rproc.c
@@ -89,7 +89,7 @@ static int wkup_m3_rproc_stop(struct rproc *rproc)
return error;
}
-static void *wkup_m3_rproc_da_to_va(struct rproc *rproc, u64 da, size_t len)
+static void *wkup_m3_rproc_da_to_va(struct rproc *rproc, u64 da, size_t len, bool *is_iomem)
{
struct wkup_m3_rproc *wkupm3 = rproc->priv;
void *va = NULL;
diff --git a/include/linux/remoteproc.h b/include/linux/remoteproc.h
index a5f6d2d9cde2..1b7d56c7a453 100644
--- a/include/linux/remoteproc.h
+++ b/include/linux/remoteproc.h
@@ -386,7 +386,7 @@ struct rproc_ops {
int (*stop)(struct rproc *rproc);
int (*attach)(struct rproc *rproc);
void (*kick)(struct rproc *rproc, int vqid);
- void * (*da_to_va)(struct rproc *rproc, u64 da, size_t len);
+ void * (*da_to_va)(struct rproc *rproc, u64 da, size_t len, bool *is_iomem);
int (*parse_fw)(struct rproc *rproc, const struct firmware *fw);
int (*handle_rsc)(struct rproc *rproc, u32 rsc_type, void *rsc,
int offset, int avail);
--
2.28.0
From: Peng Fan <[email protected]>
It is using devm_ioremap, so not devm_ioremap_resource. Correct
the error message and print out sa/size.
Reviewed-by: Bjorn Andersson <[email protected]>
Signed-off-by: Peng Fan <[email protected]>
Reviewed-by: Mathieu Poirier <[email protected]>
Reviewed-by: Mathieu Poirier <[email protected]>
---
drivers/remoteproc/imx_rproc.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/remoteproc/imx_rproc.c b/drivers/remoteproc/imx_rproc.c
index 6603e00bb6f4..2a093cea4997 100644
--- a/drivers/remoteproc/imx_rproc.c
+++ b/drivers/remoteproc/imx_rproc.c
@@ -268,7 +268,7 @@ static int imx_rproc_addr_init(struct imx_rproc *priv,
priv->mem[b].cpu_addr = devm_ioremap(&pdev->dev,
att->sa, att->size);
if (!priv->mem[b].cpu_addr) {
- dev_err(dev, "devm_ioremap_resource failed\n");
+ dev_err(dev, "failed to remap %#x bytes from %#x\n", att->size, att->sa);
return -ENOMEM;
}
priv->mem[b].sys_addr = att->sa;
@@ -298,7 +298,7 @@ static int imx_rproc_addr_init(struct imx_rproc *priv,
priv->mem[b].cpu_addr = devm_ioremap_resource(&pdev->dev, &res);
if (IS_ERR(priv->mem[b].cpu_addr)) {
- dev_err(dev, "devm_ioremap_resource failed\n");
+ dev_err(dev, "failed to remap %pr\n", &res);
err = PTR_ERR(priv->mem[b].cpu_addr);
return err;
}
--
2.28.0
On Tue, Jan 12, 2021 at 05:39:14PM +0800, [email protected] wrote:
> From: Peng Fan <[email protected]>
>
> It is using devm_ioremap, so not devm_ioremap_resource. Correct
> the error message and print out sa/size.
>
> Reviewed-by: Bjorn Andersson <[email protected]>
> Signed-off-by: Peng Fan <[email protected]>
> Reviewed-by: Mathieu Poirier <[email protected]>
> Reviewed-by: Mathieu Poirier <[email protected]>
That was a finger problem on my side, no need to add my RB twice.
> ---
> drivers/remoteproc/imx_rproc.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/remoteproc/imx_rproc.c b/drivers/remoteproc/imx_rproc.c
> index 6603e00bb6f4..2a093cea4997 100644
> --- a/drivers/remoteproc/imx_rproc.c
> +++ b/drivers/remoteproc/imx_rproc.c
> @@ -268,7 +268,7 @@ static int imx_rproc_addr_init(struct imx_rproc *priv,
> priv->mem[b].cpu_addr = devm_ioremap(&pdev->dev,
> att->sa, att->size);
> if (!priv->mem[b].cpu_addr) {
> - dev_err(dev, "devm_ioremap_resource failed\n");
> + dev_err(dev, "failed to remap %#x bytes from %#x\n", att->size, att->sa);
> return -ENOMEM;
> }
> priv->mem[b].sys_addr = att->sa;
> @@ -298,7 +298,7 @@ static int imx_rproc_addr_init(struct imx_rproc *priv,
>
> priv->mem[b].cpu_addr = devm_ioremap_resource(&pdev->dev, &res);
> if (IS_ERR(priv->mem[b].cpu_addr)) {
> - dev_err(dev, "devm_ioremap_resource failed\n");
> + dev_err(dev, "failed to remap %pr\n", &res);
> err = PTR_ERR(priv->mem[b].cpu_addr);
> return err;
> }
> --
> 2.28.0
>
On Tue, Jan 12, 2021 at 05:39:18PM +0800, [email protected] wrote:
> From: Peng Fan <[email protected]>
>
> vdev regions are vdev0vring0, vdev0vring1, vdevbuffer and similar.
> They are handled by remoteproc common code, no need to map in imx
> rproc driver.
>
> Signed-off-by: Peng Fan <[email protected]>
> ---
> drivers/remoteproc/imx_rproc.c | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/drivers/remoteproc/imx_rproc.c b/drivers/remoteproc/imx_rproc.c
> index f80428afb8a7..e62a53ee128e 100644
> --- a/drivers/remoteproc/imx_rproc.c
> +++ b/drivers/remoteproc/imx_rproc.c
> @@ -417,6 +417,9 @@ static int imx_rproc_addr_init(struct imx_rproc *priv,
> struct resource res;
>
> node = of_parse_phandle(np, "memory-region", a);
> + /* Not map vdev region */
> + if (!strcmp(node->name, "vdev"))
> + continue;
Reviewed-by: Mathieu Poirier <[email protected]>
> err = of_address_to_resource(node, 0, &res);
> if (err) {
> dev_err(dev, "unable to resolve memory region\n");
> --
> 2.28.0
>
On Tue, Jan 12, 2021 at 05:39:19PM +0800, [email protected] wrote:
> From: Peng Fan <[email protected]>
>
> Use virtio/mailbox to build connection between Remote Proccessors
> and Linux. Add work queue to handle incoming messages.
>
> Reviewed-by: Richard Zhu <[email protected]>
> Signed-off-by: Peng Fan <[email protected]>
> ---
> drivers/remoteproc/imx_rproc.c | 115 ++++++++++++++++++++++++++++++++-
> 1 file changed, 112 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/remoteproc/imx_rproc.c b/drivers/remoteproc/imx_rproc.c
> index e62a53ee128e..812b077f1282 100644
> --- a/drivers/remoteproc/imx_rproc.c
> +++ b/drivers/remoteproc/imx_rproc.c
> @@ -7,6 +7,7 @@
> #include <linux/err.h>
> #include <linux/interrupt.h>
> #include <linux/kernel.h>
> +#include <linux/mailbox_client.h>
> #include <linux/mfd/syscon.h>
> #include <linux/module.h>
> #include <linux/of_address.h>
> @@ -15,6 +16,9 @@
> #include <linux/platform_device.h>
> #include <linux/regmap.h>
> #include <linux/remoteproc.h>
> +#include <linux/workqueue.h>
> +
> +#include "remoteproc_internal.h"
>
> #define IMX7D_SRC_SCR 0x0C
> #define IMX7D_ENABLE_M4 BIT(3)
> @@ -86,6 +90,11 @@ struct imx_rproc {
> const struct imx_rproc_dcfg *dcfg;
> struct imx_rproc_mem mem[IMX7D_RPROC_MEM_MAX];
> struct clk *clk;
> + struct mbox_client cl;
> + struct mbox_chan *tx_ch;
> + struct mbox_chan *rx_ch;
> + struct work_struct rproc_work;
> + struct workqueue_struct *workqueue;
> };
>
> static const struct imx_rproc_att imx_rproc_att_imx8mq[] = {
> @@ -366,9 +375,33 @@ static int imx_rproc_parse_fw(struct rproc *rproc, const struct firmware *fw)
> return 0;
> }
>
> +static void imx_rproc_kick(struct rproc *rproc, int vqid)
> +{
> + struct imx_rproc *priv = rproc->priv;
> + int err;
> + __u32 mmsg;
> +
> + if (!priv->tx_ch) {
> + dev_err(priv->dev, "No initialized mbox tx channel\n");
> + return;
> + }
> +
> + /*
> + * Send the index of the triggered virtqueue as the mu payload.
> + * Let remote processor know which virtqueue is used.
> + */
> + mmsg = vqid << 16;
> +
> + err = mbox_send_message(priv->tx_ch, (void *)&mmsg);
> + if (err < 0)
> + dev_err(priv->dev, "%s: failed (%d, err:%d)\n",
> + __func__, vqid, err);
> +}
> +
> static const struct rproc_ops imx_rproc_ops = {
> .start = imx_rproc_start,
> .stop = imx_rproc_stop,
> + .kick = imx_rproc_kick,
> .da_to_va = imx_rproc_da_to_va,
> .load = rproc_elf_load_segments,
> .parse_fw = imx_rproc_parse_fw,
> @@ -444,6 +477,65 @@ static int imx_rproc_addr_init(struct imx_rproc *priv,
> return 0;
> }
>
> +static void imx_rproc_vq_work(struct work_struct *work)
> +{
> + struct imx_rproc *priv = container_of(work, struct imx_rproc,
> + rproc_work);
> +
> + rproc_vq_interrupt(priv->rproc, 0);
> + rproc_vq_interrupt(priv->rproc, 1);
> +}
> +
> +static void imx_rproc_rx_callback(struct mbox_client *cl, void *msg)
> +{
> + struct rproc *rproc = dev_get_drvdata(cl->dev);
> + struct imx_rproc *priv = rproc->priv;
> +
> + queue_work(priv->workqueue, &priv->rproc_work);
> +}
> +
> +static int imx_rproc_xtr_mbox_init(struct rproc *rproc)
> +{
> + struct imx_rproc *priv = rproc->priv;
> + struct device *dev = priv->dev;
> + struct mbox_client *cl;
> + int ret;
> +
> + if (!of_get_property(dev->of_node, "mbox-names", NULL))
> + return 0;
> +
> + cl = &priv->cl;
> + cl->dev = dev;
> + cl->tx_block = true;
> + cl->tx_tout = 100;
> + cl->knows_txdone = false;
> + cl->rx_callback = imx_rproc_rx_callback;
> +
> + priv->tx_ch = mbox_request_channel_byname(cl, "tx");
> + if (IS_ERR(priv->tx_ch)) {
> + ret = PTR_ERR(priv->tx_ch);
> + return dev_err_probe(cl->dev, PTR_ERR(priv->tx_ch),
> + "failed to request tx mailbox channel: %d\n", ret);
return dev_err_probe(cl->dev, ret,
"failed to request tx mailbox channel: %d\n", ret);
> + }
> +
> + priv->rx_ch = mbox_request_channel_byname(cl, "rx");
> + if (IS_ERR(priv->rx_ch)) {
> + mbox_free_channel(priv->tx_ch);
> + return dev_err_probe(cl->dev, PTR_ERR(priv->rx_ch),
> + "failed to request mbox tx chan\n");
ret = PTR_ERR(priv->rx_ch);
return dev_err_probe(cl->dev, ret,
"failed to request rx mailbox channel: %d\n", ret);
> + }
> +
> + return 0;
> +}
> +
> +static void imx_rproc_free_mbox(struct rproc *rproc)
> +{
> + struct imx_rproc *priv = rproc->priv;
> +
> + mbox_free_channel(priv->tx_ch);
> + mbox_free_channel(priv->rx_ch);
> +}
> +
> static int imx_rproc_probe(struct platform_device *pdev)
> {
> struct device *dev = &pdev->dev;
> @@ -481,18 +573,28 @@ static int imx_rproc_probe(struct platform_device *pdev)
> priv->dev = dev;
>
> dev_set_drvdata(dev, rproc);
> + priv->workqueue = create_workqueue(dev_name(dev));
> + if (!priv->workqueue) {
> + dev_err(dev, "cannot create workqueue\n");
> + ret = -ENOMEM;
> + goto err_put_rproc;
> + }
> +
> + ret = imx_rproc_xtr_mbox_init(rproc);
> + if (ret)
> + goto err_put_wkq;
>
> ret = imx_rproc_addr_init(priv, pdev);
> if (ret) {
> dev_err(dev, "failed on imx_rproc_addr_init\n");
> - goto err_put_rproc;
> + goto err_put_mbox;
> }
>
> priv->clk = devm_clk_get(dev, NULL);
> if (IS_ERR(priv->clk)) {
> dev_err(dev, "Failed to get clock\n");
> ret = PTR_ERR(priv->clk);
> - goto err_put_rproc;
> + goto err_put_mbox;
> }
>
> /*
> @@ -502,9 +604,11 @@ static int imx_rproc_probe(struct platform_device *pdev)
> ret = clk_prepare_enable(priv->clk);
> if (ret) {
> dev_err(&rproc->dev, "Failed to enable clock\n");
> - goto err_put_rproc;
> + goto err_put_mbox;
> }
>
> + INIT_WORK(&(priv->rproc_work), imx_rproc_vq_work);
> +
> ret = rproc_add(rproc);
> if (ret) {
> dev_err(dev, "rproc_add failed\n");
> @@ -515,6 +619,10 @@ static int imx_rproc_probe(struct platform_device *pdev)
>
> err_put_clk:
> clk_disable_unprepare(priv->clk);
> +err_put_mbox:
> + imx_rproc_free_mbox(rproc);
> +err_put_wkq:
> + destroy_workqueue(priv->workqueue);
> err_put_rproc:
> rproc_free(rproc);
>
> @@ -527,6 +635,7 @@ static int imx_rproc_remove(struct platform_device *pdev)
> struct imx_rproc *priv = rproc->priv;
>
> clk_disable_unprepare(priv->clk);
> + imx_rproc_free_mbox(rproc);
Function rproc_del() needs to be called first so that rproc_shutdown() is
executed (because rproc->auto_boot is true).
Thanks,
Mathieu
> rproc_del(rproc);
> rproc_free(rproc);
>
> --
> 2.28.0
>
> Subject: Re: [PATCH V6 10/10] remoteproc: imx_proc: enable virtio/mailbox
>
> On Tue, Jan 12, 2021 at 05:39:19PM +0800, [email protected] wrote:
> > From: Peng Fan <[email protected]>
> >
> > Use virtio/mailbox to build connection between Remote Proccessors and
> > Linux. Add work queue to handle incoming messages.
> >
> > Reviewed-by: Richard Zhu <[email protected]>
> > Signed-off-by: Peng Fan <[email protected]>
> > ---
> > drivers/remoteproc/imx_rproc.c | 115
> > ++++++++++++++++++++++++++++++++-
> > 1 file changed, 112 insertions(+), 3 deletions(-)
> >
> > diff --git a/drivers/remoteproc/imx_rproc.c
> > b/drivers/remoteproc/imx_rproc.c index e62a53ee128e..812b077f1282
> > 100644
> > --- a/drivers/remoteproc/imx_rproc.c
> > +++ b/drivers/remoteproc/imx_rproc.c
> > @@ -7,6 +7,7 @@
> > #include <linux/err.h>
> > #include <linux/interrupt.h>
> > #include <linux/kernel.h>
> > +#include <linux/mailbox_client.h>
> > #include <linux/mfd/syscon.h>
> > #include <linux/module.h>
> > #include <linux/of_address.h>
> > @@ -15,6 +16,9 @@
> > #include <linux/platform_device.h>
> > #include <linux/regmap.h>
> > #include <linux/remoteproc.h>
> > +#include <linux/workqueue.h>
> > +
> > +#include "remoteproc_internal.h"
> >
> > #define IMX7D_SRC_SCR 0x0C
> > #define IMX7D_ENABLE_M4 BIT(3)
> > @@ -86,6 +90,11 @@ struct imx_rproc {
> > const struct imx_rproc_dcfg *dcfg;
> > struct imx_rproc_mem mem[IMX7D_RPROC_MEM_MAX];
> > struct clk *clk;
> > + struct mbox_client cl;
> > + struct mbox_chan *tx_ch;
> > + struct mbox_chan *rx_ch;
> > + struct work_struct rproc_work;
> > + struct workqueue_struct *workqueue;
> > };
> >
> > static const struct imx_rproc_att imx_rproc_att_imx8mq[] = { @@
> > -366,9 +375,33 @@ static int imx_rproc_parse_fw(struct rproc *rproc,
> const struct firmware *fw)
> > return 0;
> > }
> >
> > +static void imx_rproc_kick(struct rproc *rproc, int vqid) {
> > + struct imx_rproc *priv = rproc->priv;
> > + int err;
> > + __u32 mmsg;
> > +
> > + if (!priv->tx_ch) {
> > + dev_err(priv->dev, "No initialized mbox tx channel\n");
> > + return;
> > + }
> > +
> > + /*
> > + * Send the index of the triggered virtqueue as the mu payload.
> > + * Let remote processor know which virtqueue is used.
> > + */
> > + mmsg = vqid << 16;
> > +
> > + err = mbox_send_message(priv->tx_ch, (void *)&mmsg);
> > + if (err < 0)
> > + dev_err(priv->dev, "%s: failed (%d, err:%d)\n",
> > + __func__, vqid, err);
> > +}
> > +
> > static const struct rproc_ops imx_rproc_ops = {
> > .start = imx_rproc_start,
> > .stop = imx_rproc_stop,
> > + .kick = imx_rproc_kick,
> > .da_to_va = imx_rproc_da_to_va,
> > .load = rproc_elf_load_segments,
> > .parse_fw = imx_rproc_parse_fw,
> > @@ -444,6 +477,65 @@ static int imx_rproc_addr_init(struct imx_rproc
> *priv,
> > return 0;
> > }
> >
> > +static void imx_rproc_vq_work(struct work_struct *work) {
> > + struct imx_rproc *priv = container_of(work, struct imx_rproc,
> > + rproc_work);
> > +
> > + rproc_vq_interrupt(priv->rproc, 0);
> > + rproc_vq_interrupt(priv->rproc, 1);
> > +}
> > +
> > +static void imx_rproc_rx_callback(struct mbox_client *cl, void *msg)
> > +{
> > + struct rproc *rproc = dev_get_drvdata(cl->dev);
> > + struct imx_rproc *priv = rproc->priv;
> > +
> > + queue_work(priv->workqueue, &priv->rproc_work); }
> > +
> > +static int imx_rproc_xtr_mbox_init(struct rproc *rproc) {
> > + struct imx_rproc *priv = rproc->priv;
> > + struct device *dev = priv->dev;
> > + struct mbox_client *cl;
> > + int ret;
> > +
> > + if (!of_get_property(dev->of_node, "mbox-names", NULL))
> > + return 0;
> > +
> > + cl = &priv->cl;
> > + cl->dev = dev;
> > + cl->tx_block = true;
> > + cl->tx_tout = 100;
> > + cl->knows_txdone = false;
> > + cl->rx_callback = imx_rproc_rx_callback;
> > +
> > + priv->tx_ch = mbox_request_channel_byname(cl, "tx");
> > + if (IS_ERR(priv->tx_ch)) {
> > + ret = PTR_ERR(priv->tx_ch);
> > + return dev_err_probe(cl->dev, PTR_ERR(priv->tx_ch),
> > + "failed to request tx mailbox channel: %d\n", ret);
>
> return dev_err_probe(cl->dev, ret,
> "failed to request tx mailbox channel: %d\n", ret);
> > + }
> > +
> > + priv->rx_ch = mbox_request_channel_byname(cl, "rx");
> > + if (IS_ERR(priv->rx_ch)) {
> > + mbox_free_channel(priv->tx_ch);
> > + return dev_err_probe(cl->dev, PTR_ERR(priv->rx_ch),
> > + "failed to request mbox tx chan\n");
>
> ret = PTR_ERR(priv->rx_ch);
> return dev_err_probe(cl->dev, ret,
> "failed to request rx mailbox channel: %d\n", ret);
>
> > + }
> > +
> > + return 0;
> > +}
> > +
> > +static void imx_rproc_free_mbox(struct rproc *rproc) {
> > + struct imx_rproc *priv = rproc->priv;
> > +
> > + mbox_free_channel(priv->tx_ch);
> > + mbox_free_channel(priv->rx_ch);
> > +}
> > +
> > static int imx_rproc_probe(struct platform_device *pdev) {
> > struct device *dev = &pdev->dev;
> > @@ -481,18 +573,28 @@ static int imx_rproc_probe(struct
> platform_device *pdev)
> > priv->dev = dev;
> >
> > dev_set_drvdata(dev, rproc);
> > + priv->workqueue = create_workqueue(dev_name(dev));
> > + if (!priv->workqueue) {
> > + dev_err(dev, "cannot create workqueue\n");
> > + ret = -ENOMEM;
> > + goto err_put_rproc;
> > + }
> > +
> > + ret = imx_rproc_xtr_mbox_init(rproc);
> > + if (ret)
> > + goto err_put_wkq;
> >
> > ret = imx_rproc_addr_init(priv, pdev);
> > if (ret) {
> > dev_err(dev, "failed on imx_rproc_addr_init\n");
> > - goto err_put_rproc;
> > + goto err_put_mbox;
> > }
> >
> > priv->clk = devm_clk_get(dev, NULL);
> > if (IS_ERR(priv->clk)) {
> > dev_err(dev, "Failed to get clock\n");
> > ret = PTR_ERR(priv->clk);
> > - goto err_put_rproc;
> > + goto err_put_mbox;
> > }
> >
> > /*
> > @@ -502,9 +604,11 @@ static int imx_rproc_probe(struct platform_device
> *pdev)
> > ret = clk_prepare_enable(priv->clk);
> > if (ret) {
> > dev_err(&rproc->dev, "Failed to enable clock\n");
> > - goto err_put_rproc;
> > + goto err_put_mbox;
> > }
> >
> > + INIT_WORK(&(priv->rproc_work), imx_rproc_vq_work);
> > +
> > ret = rproc_add(rproc);
> > if (ret) {
> > dev_err(dev, "rproc_add failed\n"); @@ -515,6 +619,10 @@ static
> int
> > imx_rproc_probe(struct platform_device *pdev)
> >
> > err_put_clk:
> > clk_disable_unprepare(priv->clk);
> > +err_put_mbox:
> > + imx_rproc_free_mbox(rproc);
> > +err_put_wkq:
> > + destroy_workqueue(priv->workqueue);
> > err_put_rproc:
> > rproc_free(rproc);
> >
> > @@ -527,6 +635,7 @@ static int imx_rproc_remove(struct platform_device
> *pdev)
> > struct imx_rproc *priv = rproc->priv;
> >
> > clk_disable_unprepare(priv->clk);
> > + imx_rproc_free_mbox(rproc);
>
> Function rproc_del() needs to be called first so that rproc_shutdown() is
> executed (because rproc->auto_boot is true).
Will fix it in next version.
Thanks,
Peng.
>
> Thanks,
> Mathieu
>
> > rproc_del(rproc);
> > rproc_free(rproc);
> >
> > --
> > 2.28.0
> >