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t23x: psc: Add support to use other PSC instances

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1.Updates the existing way of naming the debugfs nodes.
    2.HPSE and SB does not have SMMU ready would need to write
      all the data into the mailboxes, instead of using buffer

    JIRA: TMT-355

Change-Id: Ica5ad8a5efcc49bcdbe79eb3f3245e67458e507d
Signed-off-by: rajangam <rajangam@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/3084904
Reviewed-by: Liang Cheng (SW) <licheng@nvidia.com>
Reviewed-by: David Pu <dpu@nvidia.com>
GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>
This commit is contained in:
rajangam
2024-02-27 20:43:49 +00:00
committed by mobile promotions
parent 1dc806cb91
commit 9b56ed79c0
1 changed files with 38 additions and 7 deletions
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45
drivers/platform/tegra/psc/psc_debug.c
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@@ -68,6 +68,8 @@ struct psc_debug_dev {
};
static struct psc_debug_dev psc_debug;
static struct psc_debug_dev oesp_debug;
static struct psc_debug_dev sb_debug;
static struct dentry *debugfs_root;
#define NV(x) "nvidia," #x
@@ -224,6 +226,7 @@ static long xfer_data(struct file *file, char __user *data)
struct psc_debug_dev *dbg = file->private_data;
struct platform_device *pdev = dbg->pdev;
struct device *dev = &pdev->dev;
const char *psc_name = NULL;
void *tx_virt = NULL;
void *rx_virt = NULL;
dma_addr_t tx_phys = 0;
@@ -233,6 +236,12 @@ static long xfer_data(struct file *file, char __user *data)
struct xfer_info info;
struct xfer_info __user *ptr_xfer = (struct xfer_info __user *)data;
/* Get the cpu name from dtb and use for debug node*/
if (device_property_read_string(dev, "nvidia,cpu-name", &psc_name) != 0) {
dev_err(dev, "Could not find property nvidia,cpu-name in device tree\n");
return -ENODEV;
}
if (copy_from_user(&info, data, sizeof(struct xfer_info))) {
dev_err(&pdev->dev, "failed to copy data.\n");
ret = -EFAULT;
@@ -275,12 +284,21 @@ static long xfer_data(struct file *file, char __user *data)
dev_dbg(dev, "tx_virt:%p, tx_phys: %p\n", tx_virt, (void *)tx_phys);
dev_dbg(dev, "rx_virt:%p, rx_phys: %p\n", rx_virt, (void *)rx_phys);
msg.opcode[0] = info.opcode[0];
msg.opcode[1] = info.opcode[1];
msg.tx_iova = tx_phys;
msg.rx_iova = rx_phys;
msg.tx_size = info.tx_size;
msg.rx_size = info.rx_size;
/* For OESP/SB */
if (strcmp(psc_name, "oesp") == 0 || strcmp(psc_name, "sb") == 0) {
msg.data[0] = info.opcode[0];
msg.data[1] = info.opcode[1];
if (info.tx_buf && info.tx_size > 0 && info.tx_size <= 56)
memcpy(&msg.data[2], tx_virt, info.tx_size);
} else if (strcmp(psc_name, "psc") == 0) {
/* For PSC */
msg.opcode[0] = info.opcode[0];
msg.opcode[1] = info.opcode[1];
msg.tx_iova = tx_phys;
msg.rx_iova = rx_phys;
msg.tx_size = info.tx_size;
msg.rx_size = info.rx_size;
}
ret = send_msg_block(dbg, &msg);
if (ret != 0)
@@ -358,13 +376,26 @@ int psc_debugfs_create(struct platform_device *pdev, struct mbox_controller *mbo
{
struct psc_debug_dev *dbg = &psc_debug;
struct device *dev = &pdev->dev;
const char *psc_name = NULL;
/* Get the cpu name from dtb and use for debug node*/
if (device_property_read_string(dev, "nvidia,cpu-name", &psc_name) != 0) {
dev_err(dev, "Could not find property nvidia,cpu-name in device tree\n");
return -ENODEV;
}
if (strcmp(psc_name, "oesp") == 0)
dbg = &oesp_debug;
else if (strcmp(psc_name, "sb") == 0)
dbg = &sb_debug;
if (!debugfs_initialized()) {
dev_err(dev, "debugfs is not initialized\n");
return -ENODEV;
}
debugfs_root = debugfs_create_dir("psc", NULL);
debugfs_root = debugfs_create_dir(psc_name, NULL);
if (debugfs_root == NULL) {
dev_err(dev, "failed to create psc debugfs\n");
return -EINVAL;