[PATCH 1/3] drivers: remoteproc: Make mdt_loader firmware authentication optional
From: Sricharan R <hidden>
Date: 2017-06-29 14:18:14
Also in:
linux-arm-msm, linux-remoteproc, lkml
Subsystem:
arm/qualcomm mailing list, arm/qualcomm support, remote processor (remoteproc) subsystem, the rest · Maintainers:
Bjorn Andersson, Konrad Dybcio, Mathieu Poirier, Linus Torvalds
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 <redacted> --- 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
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