diff options
| -rw-r--r-- | drivers/accel/qaic/qaic_debugfs.c | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/drivers/accel/qaic/qaic_debugfs.c b/drivers/accel/qaic/qaic_debugfs.c index 9d0d43fb5b8f..b362960941d7 100644 --- a/drivers/accel/qaic/qaic_debugfs.c +++ b/drivers/accel/qaic/qaic_debugfs.c @@ -12,6 +12,7 @@ #include <linux/overflow.h> #include <linux/pci.h> #include <linux/seq_file.h> +#include <linux/sprintf.h> #include <linux/string.h> #include <linux/types.h> #include <linux/workqueue.h> @@ -21,6 +22,7 @@ #define BOOTLOG_POOL_SIZE 16 #define BOOTLOG_MSG_SIZE 512 +#define QAIC_DBC_DIR_NAME 9 struct bootlog_msg { /* Buffer for bootlog messages */ @@ -75,14 +77,47 @@ static const struct file_operations bootlog_fops = { .release = single_release, }; +static int read_dbc_fifo_size(struct seq_file *s, void *unused) +{ + struct dma_bridge_chan *dbc = s->private; + + seq_printf(s, "%u\n", dbc->nelem); + return 0; +} + +static int fifo_size_open(struct inode *inode, struct file *file) +{ + return single_open(file, read_dbc_fifo_size, inode->i_private); +} + +static const struct file_operations fifo_size_fops = { + .owner = THIS_MODULE, + .open = fifo_size_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, +}; + void qaic_debugfs_init(struct qaic_drm_device *qddev) { struct qaic_device *qdev = qddev->qdev; struct dentry *debugfs_root; + struct dentry *debugfs_dir; + char name[QAIC_DBC_DIR_NAME]; + u32 i; debugfs_root = to_drm(qddev)->debugfs_root; debugfs_create_file("bootlog", 0400, debugfs_root, qdev, &bootlog_fops); + /* + * 256 dbcs per device is likely the max we will ever see and lets static checking see a + * reasonable range. + */ + for (i = 0; i < qdev->num_dbc && i < 256; ++i) { + snprintf(name, QAIC_DBC_DIR_NAME, "dbc%03u", i); + debugfs_dir = debugfs_create_dir(name, debugfs_root); + debugfs_create_file("fifo_size", 0400, debugfs_dir, &qdev->dbc[i], &fifo_size_fops); + } } static struct bootlog_page *alloc_bootlog_page(struct qaic_device *qdev) |