Re: [PATCH v2 2/2] remoteproc: qcom: Add support for parsing fw dt bindings
Hi Brian,
Thanks for the review!
On 2019-01-04 05:14, Brian Norris wrote:
On Fri, Dec 28, 2018 at 10:18:19AM +0530, Sibi Sankar wrote:
Add support for parsing "firmware-name" dt bindings which specifies
the relative paths of mba/modem/pas image as strings. Fallback to
the default paths for mba/modem/pas image on -EINVAL.
Signed-off-by: Sibi Sankar
---
drivers/remoteproc/qcom_q6v5_mss.c | 46
+++---
drivers/remoteproc/qcom_q6v5_pas.c | 11 ++-
2 files changed, 46 insertions(+), 11 deletions(-)
diff --git a/drivers/remoteproc/qcom_q6v5_mss.c
b/drivers/remoteproc/qcom_q6v5_mss.c
index 01be7314e176..c75179006e24 100644
--- a/drivers/remoteproc/qcom_q6v5_mss.c
+++ b/drivers/remoteproc/qcom_q6v5_mss.c
@@ -188,6 +188,7 @@ struct q6v5 {
bool has_alt_reset;
int mpss_perm;
int mba_perm;
+ const char *hexagon_mdt_image;
int version;
};
@@ -860,17 +861,27 @@ static int q6v5_mpss_load(struct q6v5 *qproc)
phys_addr_t min_addr = PHYS_ADDR_MAX;
phys_addr_t max_addr = 0;
bool relocate = false;
- char seg_name[10];
+ char *fw_name;
+ size_t fw_name_len;
ssize_t offset;
size_t size = 0;
void *ptr;
int ret;
int i;
- ret = request_firmware(, "modem.mdt", qproc->dev);
+ fw_name_len = strlen(qproc->hexagon_mdt_image);
+ if (fw_name_len <= 4)
+ return -EINVAL;
+
+ fw_name = kstrdup(qproc->hexagon_mdt_image, GFP_KERNEL);
+ if (!fw_name)
+ return -ENOMEM;
+
+ ret = request_firmware(, qproc->hexagon_mdt_image, qproc->dev);
if (ret < 0) {
- dev_err(qproc->dev, "unable to load modem.mdt\n");
- return ret;
+ dev_err(qproc->dev, "unable to load %s\n",
+ qproc->hexagon_mdt_image);
+ goto out;
}
/* Initialize the RMB validator */
@@ -918,10 +929,12 @@ static int q6v5_mpss_load(struct q6v5 *qproc)
ptr = qproc->mpss_region + offset;
if (phdr->p_filesz) {
- snprintf(seg_name, sizeof(seg_name), "modem.b%02d", i);
- ret = request_firmware(_fw, seg_name, qproc->dev);
+ snprintf(fw_name + fw_name_len - 3, fw_name_len,
+"b%02d", i);
So, you're assuming that 'fw_name' ends in '.XXX' (for some 3-char
value
of 'XXX')? Seems a bit odd. But if you really want this, it feels like
you should enforce this, and either comment on what you're doing or
else
use a proper computation that makes it clear (e.g., strlen("bin")).
Brian
we want to construct the names of the fw blobs
incrementally i.e xxx.xxx to xxx.bxx. Given
that we restrict the fw_name_len to be greater
than 4 at the beginning, I'll probably do
something like this.
/* Replace "xxx.xxx" with "xxx.bxx" */
sprintf(fw_name + fw_name_len - 3, "b%02d", i);
+ ret = request_firmware(_fw, fw_name, qproc->dev);
if (ret) {
- dev_err(qproc->dev, "failed to load %s\n",
seg_name);
+ dev_err(qproc->dev, "failed to load %s\n",
+ fw_name);
goto release_firmware;
}
@@ -960,6 +973,8 @@ static int q6v5_mpss_load(struct q6v5 *qproc)
release_firmware:
release_firmware(fw);
+out:
+ kfree(fw_name);
return ret < 0 ? ret : 0;
}
@@ -1075,9 +1090,10 @@ static int
qcom_q6v5_register_dump_segments(struct rproc *rproc,
unsigned long i;
int ret;
- ret = request_firmware(, "modem.mdt", qproc->dev);
+ ret = request_firmware(, qproc->hexagon_mdt_image, qproc->dev);
if (ret < 0) {
- dev_err(qproc->dev, "unable to load modem.mdt\n");
+ dev_err(qproc->dev, "unable to load %s\n",
+ qproc->hexagon_mdt_image);
return ret;
}
@@ -1253,6 +1269,8 @@ static int q6v5_probe(struct platform_device
*pdev)
const struct rproc_hexagon_res *desc;
struct q6v5 *qproc;
struct rproc *rproc;
+ const char *mba_image;
+ const char *fw_name[2];
int ret;
desc = of_device_get_match_data(>dev);
@@ -1262,8 +1280,15 @@ static int q6v5_probe(struct platform_device
*pdev)
if (desc->need_mem_protection && !qcom_scm_is_available())
return -EPROBE_DEFER;
+ ret = of_property_read_string_array(pdev->dev.of_node,
"firmware-name",
+ fw_name, 2);
+ if (ret != -EINVAL && ret != 2)
+ return ret > 0 ? -EINVAL : ret;
+
+ mba_image = (ret != 2) ? desc->hexagon_mba_image : fw_name[0];
+
rproc = rproc_alloc(>dev, pdev->name, _ops,
- desc->hexagon_mba_image, sizeof(*qproc));
+
Re: [PATCH v2 2/2] remoteproc: qcom: Add support for parsing fw dt bindings
On Fri, Dec 28, 2018 at 10:18:19AM +0530, Sibi Sankar wrote:
> Add support for parsing "firmware-name" dt bindings which specifies
> the relative paths of mba/modem/pas image as strings. Fallback to
> the default paths for mba/modem/pas image on -EINVAL.
>
> Signed-off-by: Sibi Sankar
> ---
> drivers/remoteproc/qcom_q6v5_mss.c | 46 +++---
> drivers/remoteproc/qcom_q6v5_pas.c | 11 ++-
> 2 files changed, 46 insertions(+), 11 deletions(-)
>
> diff --git a/drivers/remoteproc/qcom_q6v5_mss.c
> b/drivers/remoteproc/qcom_q6v5_mss.c
> index 01be7314e176..c75179006e24 100644
> --- a/drivers/remoteproc/qcom_q6v5_mss.c
> +++ b/drivers/remoteproc/qcom_q6v5_mss.c
> @@ -188,6 +188,7 @@ struct q6v5 {
> bool has_alt_reset;
> int mpss_perm;
> int mba_perm;
> + const char *hexagon_mdt_image;
> int version;
> };
>
> @@ -860,17 +861,27 @@ static int q6v5_mpss_load(struct q6v5 *qproc)
> phys_addr_t min_addr = PHYS_ADDR_MAX;
> phys_addr_t max_addr = 0;
> bool relocate = false;
> - char seg_name[10];
> + char *fw_name;
> + size_t fw_name_len;
> ssize_t offset;
> size_t size = 0;
> void *ptr;
> int ret;
> int i;
>
> - ret = request_firmware(, "modem.mdt", qproc->dev);
> + fw_name_len = strlen(qproc->hexagon_mdt_image);
> + if (fw_name_len <= 4)
> + return -EINVAL;
> +
> + fw_name = kstrdup(qproc->hexagon_mdt_image, GFP_KERNEL);
> + if (!fw_name)
> + return -ENOMEM;
> +
> + ret = request_firmware(, qproc->hexagon_mdt_image, qproc->dev);
> if (ret < 0) {
> - dev_err(qproc->dev, "unable to load modem.mdt\n");
> - return ret;
> + dev_err(qproc->dev, "unable to load %s\n",
> + qproc->hexagon_mdt_image);
> + goto out;
> }
>
> /* Initialize the RMB validator */
> @@ -918,10 +929,12 @@ static int q6v5_mpss_load(struct q6v5 *qproc)
> ptr = qproc->mpss_region + offset;
>
> if (phdr->p_filesz) {
> - snprintf(seg_name, sizeof(seg_name), "modem.b%02d", i);
> - ret = request_firmware(_fw, seg_name, qproc->dev);
> + snprintf(fw_name + fw_name_len - 3, fw_name_len,
> + "b%02d", i);
So, you're assuming that 'fw_name' ends in '.XXX' (for some 3-char value
of 'XXX')? Seems a bit odd. But if you really want this, it feels like
you should enforce this, and either comment on what you're doing or else
use a proper computation that makes it clear (e.g., strlen("bin")).
Brian
> + ret = request_firmware(_fw, fw_name, qproc->dev);
> if (ret) {
> - dev_err(qproc->dev, "failed to load %s\n",
> seg_name);
> + dev_err(qproc->dev, "failed to load %s\n",
> + fw_name);
> goto release_firmware;
> }
>
> @@ -960,6 +973,8 @@ static int q6v5_mpss_load(struct q6v5 *qproc)
>
> release_firmware:
> release_firmware(fw);
> +out:
> + kfree(fw_name);
>
> return ret < 0 ? ret : 0;
> }
> @@ -1075,9 +1090,10 @@ static int qcom_q6v5_register_dump_segments(struct
> rproc *rproc,
> unsigned long i;
> int ret;
>
> - ret = request_firmware(, "modem.mdt", qproc->dev);
> + ret = request_firmware(, qproc->hexagon_mdt_image, qproc->dev);
> if (ret < 0) {
> - dev_err(qproc->dev, "unable to load modem.mdt\n");
> + dev_err(qproc->dev, "unable to load %s\n",
> + qproc->hexagon_mdt_image);
> return ret;
> }
>
> @@ -1253,6 +1269,8 @@ static int q6v5_probe(struct platform_device *pdev)
> const struct rproc_hexagon_res *desc;
> struct q6v5 *qproc;
> struct rproc *rproc;
> + const char *mba_image;
> + const char *fw_name[2];
> int ret;
>
> desc = of_device_get_match_data(>dev);
> @@ -1262,8 +1280,15 @@ static int q6v5_probe(struct platform_device *pdev)
> if (desc->need_mem_protection && !qcom_scm_is_available())
> return -EPROBE_DEFER;
>
> + ret = of_property_read_string_array(pdev->dev.of_node, "firmware-name",
> + fw_name, 2);
> + if (ret != -EINVAL && ret != 2)
> + return ret > 0 ? -EINVAL : ret;
> +
> + mba_image = (ret != 2) ? desc->hexagon_mba_image : fw_name[0];
> +
> rproc = rproc_alloc(>dev, pdev->name, _ops,
> - desc->hexagon_mba_image, sizeof(*qproc));
> + mba_image, sizeof(*qproc));
> if (!rproc) {
> dev_err(>dev, "failed to allocate rproc\n");
> return -ENOMEM;
> @@ -1272,6 +1297,7 @@ static int q6v5_probe(struct platform_device *pdev)
> qproc = (struct q6v5 *)rproc->priv;
>
Re: [PATCH v2 2/2] remoteproc: qcom: Add support for parsing fw dt bindings
On Thu 27 Dec 20:48 PST 2018, Sibi Sankar wrote:
> Add support for parsing "firmware-name" dt bindings which specifies
> the relative paths of mba/modem/pas image as strings. Fallback to
> the default paths for mba/modem/pas image on -EINVAL.
>
> Signed-off-by: Sibi Sankar
Thanks Sibi, just some minor style issues I would prefer to have fixed.
I picked patch 1, so no need to resend that.
> ---
> drivers/remoteproc/qcom_q6v5_mss.c | 46 +++---
> drivers/remoteproc/qcom_q6v5_pas.c | 11 ++-
> 2 files changed, 46 insertions(+), 11 deletions(-)
>
> diff --git a/drivers/remoteproc/qcom_q6v5_mss.c
> b/drivers/remoteproc/qcom_q6v5_mss.c
> index 01be7314e176..c75179006e24 100644
> --- a/drivers/remoteproc/qcom_q6v5_mss.c
> +++ b/drivers/remoteproc/qcom_q6v5_mss.c
> @@ -188,6 +188,7 @@ struct q6v5 {
> bool has_alt_reset;
> int mpss_perm;
> int mba_perm;
> + const char *hexagon_mdt_image;
> int version;
> };
>
> @@ -860,17 +861,27 @@ static int q6v5_mpss_load(struct q6v5 *qproc)
> phys_addr_t min_addr = PHYS_ADDR_MAX;
> phys_addr_t max_addr = 0;
> bool relocate = false;
> - char seg_name[10];
> + char *fw_name;
> + size_t fw_name_len;
> ssize_t offset;
> size_t size = 0;
> void *ptr;
> int ret;
> int i;
>
> - ret = request_firmware(, "modem.mdt", qproc->dev);
> + fw_name_len = strlen(qproc->hexagon_mdt_image);
> + if (fw_name_len <= 4)
> + return -EINVAL;
> +
> + fw_name = kstrdup(qproc->hexagon_mdt_image, GFP_KERNEL);
> + if (!fw_name)
> + return -ENOMEM;
> +
> + ret = request_firmware(, qproc->hexagon_mdt_image, qproc->dev);
Use fw_name here.
> if (ret < 0) {
> - dev_err(qproc->dev, "unable to load modem.mdt\n");
> - return ret;
> + dev_err(qproc->dev, "unable to load %s\n",
> + qproc->hexagon_mdt_image);
> + goto out;
> }
>
> /* Initialize the RMB validator */
> @@ -918,10 +929,12 @@ static int q6v5_mpss_load(struct q6v5 *qproc)
> ptr = qproc->mpss_region + offset;
>
> if (phdr->p_filesz) {
> - snprintf(seg_name, sizeof(seg_name), "modem.b%02d", i);
> - ret = request_firmware(_fw, seg_name, qproc->dev);
> + snprintf(fw_name + fw_name_len - 3, fw_name_len,
> + "b%02d", i);
> + ret = request_firmware(_fw, fw_name, qproc->dev);
> if (ret) {
> - dev_err(qproc->dev, "failed to load %s\n",
> seg_name);
> + dev_err(qproc->dev, "failed to load %s\n",
> + fw_name);
Follow my lead and break the 80-char limit.
> goto release_firmware;
> }
>
> @@ -960,6 +973,8 @@ static int q6v5_mpss_load(struct q6v5 *qproc)
>
> release_firmware:
> release_firmware(fw);
> +out:
> + kfree(fw_name);
>
> return ret < 0 ? ret : 0;
> }
> @@ -1075,9 +1090,10 @@ static int qcom_q6v5_register_dump_segments(struct
> rproc *rproc,
> unsigned long i;
> int ret;
>
> - ret = request_firmware(, "modem.mdt", qproc->dev);
> + ret = request_firmware(, qproc->hexagon_mdt_image, qproc->dev);
> if (ret < 0) {
> - dev_err(qproc->dev, "unable to load modem.mdt\n");
> + dev_err(qproc->dev, "unable to load %s\n",
> + qproc->hexagon_mdt_image);
> return ret;
> }
>
> @@ -1253,6 +1269,8 @@ static int q6v5_probe(struct platform_device *pdev)
> const struct rproc_hexagon_res *desc;
> struct q6v5 *qproc;
> struct rproc *rproc;
> + const char *mba_image;
> + const char *fw_name[2];
> int ret;
>
> desc = of_device_get_match_data(>dev);
> @@ -1262,8 +1280,15 @@ static int q6v5_probe(struct platform_device *pdev)
> if (desc->need_mem_protection && !qcom_scm_is_available())
> return -EPROBE_DEFER;
>
> + ret = of_property_read_string_array(pdev->dev.of_node, "firmware-name",
> + fw_name, 2);
> + if (ret != -EINVAL && ret != 2)
> + return ret > 0 ? -EINVAL : ret;
> +
> + mba_image = (ret != 2) ? desc->hexagon_mba_image : fw_name[0];
Use the fact that of_property_read_string_index() leaves the output
parameter untouched if it doesn't succeed in parsing the property.
I.e. do:
mba_image = desc->hexagon_mba_image;
ret = of_property_read_string_index(pdev->dev.of_node, "firmware-name",
0, _image);
if (ret < 0 && ret != -EINVAL)
fail();
and
qproc->hexagon_mdt_image = "modem.mdt";
ret = of_property_read_string_index(pdev->dev.of_node, "firmware-name",
1, >hexagon_mdt_image);
if (ret < 0 && ret
[PATCH v2 2/2] remoteproc: qcom: Add support for parsing fw dt bindings
Add support for parsing "firmware-name" dt bindings which specifies
the relative paths of mba/modem/pas image as strings. Fallback to
the default paths for mba/modem/pas image on -EINVAL.
Signed-off-by: Sibi Sankar
---
drivers/remoteproc/qcom_q6v5_mss.c | 46 +++---
drivers/remoteproc/qcom_q6v5_pas.c | 11 ++-
2 files changed, 46 insertions(+), 11 deletions(-)
diff --git a/drivers/remoteproc/qcom_q6v5_mss.c
b/drivers/remoteproc/qcom_q6v5_mss.c
index 01be7314e176..c75179006e24 100644
--- a/drivers/remoteproc/qcom_q6v5_mss.c
+++ b/drivers/remoteproc/qcom_q6v5_mss.c
@@ -188,6 +188,7 @@ struct q6v5 {
bool has_alt_reset;
int mpss_perm;
int mba_perm;
+ const char *hexagon_mdt_image;
int version;
};
@@ -860,17 +861,27 @@ static int q6v5_mpss_load(struct q6v5 *qproc)
phys_addr_t min_addr = PHYS_ADDR_MAX;
phys_addr_t max_addr = 0;
bool relocate = false;
- char seg_name[10];
+ char *fw_name;
+ size_t fw_name_len;
ssize_t offset;
size_t size = 0;
void *ptr;
int ret;
int i;
- ret = request_firmware(, "modem.mdt", qproc->dev);
+ fw_name_len = strlen(qproc->hexagon_mdt_image);
+ if (fw_name_len <= 4)
+ return -EINVAL;
+
+ fw_name = kstrdup(qproc->hexagon_mdt_image, GFP_KERNEL);
+ if (!fw_name)
+ return -ENOMEM;
+
+ ret = request_firmware(, qproc->hexagon_mdt_image, qproc->dev);
if (ret < 0) {
- dev_err(qproc->dev, "unable to load modem.mdt\n");
- return ret;
+ dev_err(qproc->dev, "unable to load %s\n",
+ qproc->hexagon_mdt_image);
+ goto out;
}
/* Initialize the RMB validator */
@@ -918,10 +929,12 @@ static int q6v5_mpss_load(struct q6v5 *qproc)
ptr = qproc->mpss_region + offset;
if (phdr->p_filesz) {
- snprintf(seg_name, sizeof(seg_name), "modem.b%02d", i);
- ret = request_firmware(_fw, seg_name, qproc->dev);
+ snprintf(fw_name + fw_name_len - 3, fw_name_len,
+"b%02d", i);
+ ret = request_firmware(_fw, fw_name, qproc->dev);
if (ret) {
- dev_err(qproc->dev, "failed to load %s\n",
seg_name);
+ dev_err(qproc->dev, "failed to load %s\n",
+ fw_name);
goto release_firmware;
}
@@ -960,6 +973,8 @@ static int q6v5_mpss_load(struct q6v5 *qproc)
release_firmware:
release_firmware(fw);
+out:
+ kfree(fw_name);
return ret < 0 ? ret : 0;
}
@@ -1075,9 +1090,10 @@ static int qcom_q6v5_register_dump_segments(struct rproc
*rproc,
unsigned long i;
int ret;
- ret = request_firmware(, "modem.mdt", qproc->dev);
+ ret = request_firmware(, qproc->hexagon_mdt_image, qproc->dev);
if (ret < 0) {
- dev_err(qproc->dev, "unable to load modem.mdt\n");
+ dev_err(qproc->dev, "unable to load %s\n",
+ qproc->hexagon_mdt_image);
return ret;
}
@@ -1253,6 +1269,8 @@ static int q6v5_probe(struct platform_device *pdev)
const struct rproc_hexagon_res *desc;
struct q6v5 *qproc;
struct rproc *rproc;
+ const char *mba_image;
+ const char *fw_name[2];
int ret;
desc = of_device_get_match_data(>dev);
@@ -1262,8 +1280,15 @@ static int q6v5_probe(struct platform_device *pdev)
if (desc->need_mem_protection && !qcom_scm_is_available())
return -EPROBE_DEFER;
+ ret = of_property_read_string_array(pdev->dev.of_node, "firmware-name",
+ fw_name, 2);
+ if (ret != -EINVAL && ret != 2)
+ return ret > 0 ? -EINVAL : ret;
+
+ mba_image = (ret != 2) ? desc->hexagon_mba_image : fw_name[0];
+
rproc = rproc_alloc(>dev, pdev->name, _ops,
- desc->hexagon_mba_image, sizeof(*qproc));
+ mba_image, sizeof(*qproc));
if (!rproc) {
dev_err(>dev, "failed to allocate rproc\n");
return -ENOMEM;
@@ -1272,6 +1297,7 @@ static int q6v5_probe(struct platform_device *pdev)
qproc = (struct q6v5 *)rproc->priv;
qproc->dev = >dev;
qproc->rproc = rproc;
+ qproc->hexagon_mdt_image = (ret != 2) ? "modem.mdt" : fw_name[1];
platform_set_drvdata(pdev, qproc);
ret = q6v5_init_mem(qproc, pdev);
diff --git a/drivers/remoteproc/qcom_q6v5_pas.c
b/drivers/remoteproc/qcom_q6v5_pas.c
index b1e63fcd5fdf..141c7da29e9a 100644
--- a/drivers/remoteproc/qcom_q6v5_pas.c
+++ b/drivers/remoteproc/qcom_q6v5_pas.c
@@ -258,6 +258,8 @@ static int
