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authorArnd Bergmann <arnd@arndb.de>2018-03-27 15:56:11 +0200
committerArnd Bergmann <arnd@arndb.de>2018-03-27 15:56:11 +0200
commitb701b41bb4f6304e95fffb1c2b2f0bb9158a2245 (patch)
tree107da62c69d674b9c13b1140e77d3df048eb9b36 /drivers/soc
parent3262b82d0ce66ca9af08ef2cdabc6ce418ebca28 (diff)
parent90c29ed7627b6b4aeb603ee197650173c8434512 (diff)
Merge tag 'qcom-drivers-for-4.17' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/agross/linux into next/drivers
Pull "Qualcomm ARM Based Driver Updates for v4.17" from Andy Gross: * Fix NV upload increment in wcnss_ctrl * Add support in rmtfs-mem driver for assigning memory * tag 'qcom-drivers-for-4.17' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/agross/linux: soc: qcom: wcnss_ctrl: Fix increment in NV upload soc: qcom: rmtfs-mem: Add support for assigning memory to remote
Diffstat (limited to 'drivers/soc')
-rw-r--r--drivers/soc/qcom/Kconfig1
-rw-r--r--drivers/soc/qcom/rmtfs_mem.c34
-rw-r--r--drivers/soc/qcom/wcnss_ctrl.c2
3 files changed, 36 insertions, 1 deletions
diff --git a/drivers/soc/qcom/Kconfig b/drivers/soc/qcom/Kconfig
index e050eb83341d..a993d19fa562 100644
--- a/drivers/soc/qcom/Kconfig
+++ b/drivers/soc/qcom/Kconfig
@@ -47,6 +47,7 @@ config QCOM_QMI_HELPERS
config QCOM_RMTFS_MEM
tristate "Qualcomm Remote Filesystem memory driver"
depends on ARCH_QCOM
+ select QCOM_SCM
help
The Qualcomm remote filesystem memory driver is used for allocating
and exposing regions of shared memory with remote processors for the
diff --git a/drivers/soc/qcom/rmtfs_mem.c b/drivers/soc/qcom/rmtfs_mem.c
index 0a43b2e8906f..c8999e38b005 100644
--- a/drivers/soc/qcom/rmtfs_mem.c
+++ b/drivers/soc/qcom/rmtfs_mem.c
@@ -37,6 +37,8 @@ struct qcom_rmtfs_mem {
phys_addr_t size;
unsigned int client_id;
+
+ unsigned int perms;
};
static ssize_t qcom_rmtfs_mem_show(struct device *dev,
@@ -151,9 +153,11 @@ static void qcom_rmtfs_mem_release_device(struct device *dev)
static int qcom_rmtfs_mem_probe(struct platform_device *pdev)
{
struct device_node *node = pdev->dev.of_node;
+ struct qcom_scm_vmperm perms[2];
struct reserved_mem *rmem;
struct qcom_rmtfs_mem *rmtfs_mem;
u32 client_id;
+ u32 vmid;
int ret;
rmem = of_reserved_mem_lookup(node);
@@ -204,10 +208,31 @@ static int qcom_rmtfs_mem_probe(struct platform_device *pdev)
rmtfs_mem->dev.release = qcom_rmtfs_mem_release_device;
+ ret = of_property_read_u32(node, "qcom,vmid", &vmid);
+ if (ret < 0 && ret != -EINVAL) {
+ dev_err(&pdev->dev, "failed to parse qcom,vmid\n");
+ goto remove_cdev;
+ } else if (!ret) {
+ perms[0].vmid = QCOM_SCM_VMID_HLOS;
+ perms[0].perm = QCOM_SCM_PERM_RW;
+ perms[1].vmid = vmid;
+ perms[1].perm = QCOM_SCM_PERM_RW;
+
+ rmtfs_mem->perms = BIT(QCOM_SCM_VMID_HLOS);
+ ret = qcom_scm_assign_mem(rmtfs_mem->addr, rmtfs_mem->size,
+ &rmtfs_mem->perms, perms, 2);
+ if (ret < 0) {
+ dev_err(&pdev->dev, "assign memory failed\n");
+ goto remove_cdev;
+ }
+ }
+
dev_set_drvdata(&pdev->dev, rmtfs_mem);
return 0;
+remove_cdev:
+ cdev_device_del(&rmtfs_mem->cdev, &rmtfs_mem->dev);
put_device:
put_device(&rmtfs_mem->dev);
@@ -217,6 +242,15 @@ put_device:
static int qcom_rmtfs_mem_remove(struct platform_device *pdev)
{
struct qcom_rmtfs_mem *rmtfs_mem = dev_get_drvdata(&pdev->dev);
+ struct qcom_scm_vmperm perm;
+
+ if (rmtfs_mem->perms) {
+ perm.vmid = QCOM_SCM_VMID_HLOS;
+ perm.perm = QCOM_SCM_PERM_RW;
+
+ qcom_scm_assign_mem(rmtfs_mem->addr, rmtfs_mem->size,
+ &rmtfs_mem->perms, &perm, 1);
+ }
cdev_device_del(&rmtfs_mem->cdev, &rmtfs_mem->dev);
put_device(&rmtfs_mem->dev);
diff --git a/drivers/soc/qcom/wcnss_ctrl.c b/drivers/soc/qcom/wcnss_ctrl.c
index d008e5b82db4..df3ccb30bc2d 100644
--- a/drivers/soc/qcom/wcnss_ctrl.c
+++ b/drivers/soc/qcom/wcnss_ctrl.c
@@ -249,7 +249,7 @@ static int wcnss_download_nv(struct wcnss_ctrl *wcnss, bool *expect_cbc)
/* Increment for next fragment */
req->seq++;
- data += req->hdr.len;
+ data += NV_FRAGMENT_SIZE;
left -= NV_FRAGMENT_SIZE;
} while (left > 0);