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| author | Loic Pallardy <loic.pallardy@st.com> | 2017-11-06 18:09:56 +0100 |
|---|---|---|
| committer | Bjorn Andersson <bjorn.andersson@linaro.org> | 2017-11-06 21:57:27 -0800 |
| commit | b89188394164a5df4bd649380f75ec74e6b8a4d3 (patch) | |
| tree | 57098eca7f712e3680e1efed0cab939b197137f4 /drivers/remoteproc | |
| parent | bdd8edb9b0cd552f09a81c32d699af041155a390 (diff) | |
| download | linux-b89188394164a5df4bd649380f75ec74e6b8a4d3.tar.gz linux-b89188394164a5df4bd649380f75ec74e6b8a4d3.tar.bz2 linux-b89188394164a5df4bd649380f75ec74e6b8a4d3.zip | |
remoteproc: debug: add carveouts list dump feature
This patch offers the capability to dump memory carveouts associated
to one remoteprocessor.
Signed-off-by: Loic Pallardy <loic.pallardy@st.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Diffstat (limited to 'drivers/remoteproc')
| -rw-r--r-- | drivers/remoteproc/remoteproc_debugfs.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/drivers/remoteproc/remoteproc_debugfs.c b/drivers/remoteproc/remoteproc_debugfs.c index dc5e25943df7..a20488336aa0 100644 --- a/drivers/remoteproc/remoteproc_debugfs.c +++ b/drivers/remoteproc/remoteproc_debugfs.c @@ -252,6 +252,35 @@ static const struct file_operations rproc_rsc_table_ops = { .release = single_release, }; +/* Expose carveout content via debugfs */ +static int rproc_carveouts_show(struct seq_file *seq, void *p) +{ + struct rproc *rproc = seq->private; + struct rproc_mem_entry *carveout; + + list_for_each_entry(carveout, &rproc->carveouts, node) { + seq_puts(seq, "Carveout memory entry:\n"); + seq_printf(seq, "\tVirtual address: %p\n", carveout->va); + seq_printf(seq, "\tDMA address: %pad\n", &carveout->dma); + seq_printf(seq, "\tDevice address: 0x%x\n", carveout->da); + seq_printf(seq, "\tLength: 0x%x Bytes\n\n", carveout->len); + } + + return 0; +} + +static int rproc_carveouts_open(struct inode *inode, struct file *file) +{ + return single_open(file, rproc_carveouts_show, inode->i_private); +} + +static const struct file_operations rproc_carveouts_ops = { + .open = rproc_carveouts_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, +}; + void rproc_remove_trace_file(struct dentry *tfile) { debugfs_remove(tfile); @@ -297,6 +326,8 @@ void rproc_create_debug_dir(struct rproc *rproc) rproc, &rproc_recovery_ops); debugfs_create_file("resource_table", 0400, rproc->dbg_dir, rproc, &rproc_rsc_table_ops); + debugfs_create_file("carveout_memories", 0400, rproc->dbg_dir, + rproc, &rproc_carveouts_ops); } void __init rproc_init_debugfs(void) |