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NVIDIA: SAUCE: firmware: tegra: bpmp: add die specific debugfs nodes

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BugLink: https://bugs.launchpad.net/bugs/2080908

In a multidie environment, bpmp debugfs nodes have to be created in
separate directories for each die.
Create directories with the die number as a suffix.
Create a symlink without suffix to die zero directory, for backwards compatibility.

http://nvbugs/4466065

Signed-off-by: Stefan Kristiansson <stefank@nvidia.com>
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Acked-by: Noah Wager <noah.wager@canonical.com>
Acked-by: Jacob Martin <jacob.martin@canonical.com>
Signed-off-by: Noah Wager <noah.wager@canonical.com>
This commit is contained in:
Stefan Kristiansson
2024-04-08 12:50:45 +03:00
committed by Noah Wager
parent 2dcd8893f2
commit 95386b72f2
1 changed files with 15 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files
drivers/firmware/tegra/bpmp-debugfs.c
+15 -2
View File
@@ -772,6 +772,8 @@ free:
int tegra_bpmp_init_debugfs(struct tegra_bpmp *bpmp)
{
struct dentry *root;
struct dentry *symlink = NULL;
char tmp[10];
bool inband;
int err;
@@ -780,10 +782,19 @@ int tegra_bpmp_init_debugfs(struct tegra_bpmp *bpmp)
if (!inband && !tegra_bpmp_mrq_is_supported(bpmp, MRQ_DEBUGFS))
return 0;
root = debugfs_create_dir("bpmp", NULL);
if (dev_to_node(bpmp->dev) == NUMA_NO_NODE) {
root = debugfs_create_dir("bpmp", NULL);
} else {
snprintf(tmp, sizeof(tmp), "bpmp%d", dev_to_node(bpmp->dev));
root = debugfs_create_dir(tmp, NULL);
}
if (IS_ERR(root))
return -ENOMEM;
if (dev_to_node(bpmp->dev) == 0)
symlink = debugfs_create_symlink("bpmp", NULL, "bpmp0");
bpmp->debugfs_mirror = debugfs_create_dir("debug", root);
if (IS_ERR(bpmp->debugfs_mirror)) {
err = -ENOMEM;
@@ -797,8 +808,10 @@ int tegra_bpmp_init_debugfs(struct tegra_bpmp *bpmp)
err = bpmp_populate_debugfs_shmem(bpmp);
out:
if (err < 0)
if (err < 0) {
debugfs_remove(symlink);
debugfs_remove_recursive(root);
}
return err;
}