lkml.org 
[lkml]   [2017]   [Jun]   [29]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 1/3] drivers: remoteproc: Make mdt_loader firmware authentication optional
Date
qcom_mdt_load function loads the mdt type firmware and
authenticates it as well. Make the authentication only
when requested by the caller, so that the function can be used
by self-authenticating remoteproc as well.

Signed-off-by: Sricharan R <sricharan@codeaurora.org>
---
drivers/remoteproc/qcom_adsp_pil.c | 3 ++-
drivers/remoteproc/qcom_wcnss.c | 3 ++-
drivers/soc/qcom/mdt_loader.c | 24 ++++++++++++++----------
include/linux/soc/qcom/mdt_loader.h | 2 +-
4 files changed, 19 insertions(+), 13 deletions(-)

diff --git a/drivers/remoteproc/qcom_adsp_pil.c b/drivers/remoteproc/qcom_adsp_pil.c
index 49fe2f8..e168375 100644
--- a/drivers/remoteproc/qcom_adsp_pil.c
+++ b/drivers/remoteproc/qcom_adsp_pil.c
@@ -79,7 +79,8 @@ static int adsp_load(struct rproc *rproc, const struct firmware *fw)
struct qcom_adsp *adsp = (struct qcom_adsp *)rproc->priv;

return qcom_mdt_load(adsp->dev, fw, rproc->firmware, adsp->pas_id,
- adsp->mem_region, adsp->mem_phys, adsp->mem_size);
+ adsp->mem_region, adsp->mem_phys, adsp->mem_size,
+ true);
}

static const struct rproc_fw_ops adsp_fw_ops = {
diff --git a/drivers/remoteproc/qcom_wcnss.c b/drivers/remoteproc/qcom_wcnss.c
index c768639..b41b9b5 100644
--- a/drivers/remoteproc/qcom_wcnss.c
+++ b/drivers/remoteproc/qcom_wcnss.c
@@ -153,7 +153,8 @@ static int wcnss_load(struct rproc *rproc, const struct firmware *fw)
struct qcom_wcnss *wcnss = (struct qcom_wcnss *)rproc->priv;

return qcom_mdt_load(wcnss->dev, fw, rproc->firmware, WCNSS_PAS_ID,
- wcnss->mem_region, wcnss->mem_phys, wcnss->mem_size);
+ wcnss->mem_region, wcnss->mem_phys,
+ wcnss->mem_size, true);
}

static const struct rproc_fw_ops wcnss_fw_ops = {
diff --git a/drivers/soc/qcom/mdt_loader.c b/drivers/soc/qcom/mdt_loader.c
index bd63df0..b3947d0 100644
--- a/drivers/soc/qcom/mdt_loader.c
+++ b/drivers/soc/qcom/mdt_loader.c
@@ -88,7 +88,7 @@ ssize_t qcom_mdt_get_size(const struct firmware *fw)
*/
int qcom_mdt_load(struct device *dev, const struct firmware *fw,
const char *firmware, int pas_id, void *mem_region,
- phys_addr_t mem_phys, size_t mem_size)
+ phys_addr_t mem_phys, size_t mem_size, bool auth)
{
const struct elf32_phdr *phdrs;
const struct elf32_phdr *phdr;
@@ -119,10 +119,12 @@ int qcom_mdt_load(struct device *dev, const struct firmware *fw,
if (!fw_name)
return -ENOMEM;

- ret = qcom_scm_pas_init_image(pas_id, fw->data, fw->size);
- if (ret) {
- dev_err(dev, "invalid firmware metadata\n");
- goto out;
+ if (auth) {
+ ret = qcom_scm_pas_init_image(pas_id, fw->data, fw->size);
+ if (ret) {
+ dev_err(dev, "invalid firmware metadata\n");
+ goto out;
+ }
}

for (i = 0; i < ehdr->e_phnum; i++) {
@@ -142,12 +144,14 @@ int qcom_mdt_load(struct device *dev, const struct firmware *fw,
}

if (relocate) {
- ret = qcom_scm_pas_mem_setup(pas_id, mem_phys, max_addr - min_addr);
- if (ret) {
- dev_err(dev, "unable to setup relocation\n");
- goto out;
+ if (auth) {
+ ret = qcom_scm_pas_mem_setup(pas_id, mem_phys,
+ max_addr - min_addr);
+ if (ret) {
+ dev_err(dev, "unable to setup relocation\n");
+ goto out;
+ }
}
-
/*
* The image is relocatable, so offset each segment based on
* the lowest segment address.
diff --git a/include/linux/soc/qcom/mdt_loader.h b/include/linux/soc/qcom/mdt_loader.h
index f423001..7ff4dd3 100644
--- a/include/linux/soc/qcom/mdt_loader.h
+++ b/include/linux/soc/qcom/mdt_loader.h
@@ -13,6 +13,6 @@
ssize_t qcom_mdt_get_size(const struct firmware *fw);
int qcom_mdt_load(struct device *dev, const struct firmware *fw,
const char *fw_name, int pas_id, void *mem_region,
- phys_addr_t mem_phys, size_t mem_size);
+ phys_addr_t mem_phys, size_t mem_size, bool auth);

#endif
--
QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, hosted by The Linux Foundation
\
 
 \ /
  Last update: 2017-06-29 16:19    [W:0.185 / U:0.108 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site