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Commit b8918839 authored by Loic Pallardy's avatar Loic Pallardy Committed by Bjorn Andersson
Browse files

remoteproc: debug: add carveouts list dump feature 



This patch offers the capability to dump memory carveouts associated
to one remoteprocessor.

Signed-off-by: default avatarLoic Pallardy <loic.pallardy@st.com>
Signed-off-by: default avatarBjorn Andersson <bjorn.andersson@linaro.org>
parent bdd8edb9

drivers/remoteproc/remoteproc_debugfs.c

+31 −0
Original line number Diff line number Diff line
@@ -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)