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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>
This commit is contained in:
Loic Pallardy 2017-11-06 18:09:56 +01:00 committed by Bjorn Andersson
parent bdd8edb9b0
commit b891883941
1 changed files with 31 additions and 0 deletions
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31
drivers/remoteproc/remoteproc_debugfs.c
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@ -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)