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authorLinus Torvalds <torvalds@linux-foundation.org>2017-11-17 20:14:10 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2017-11-17 20:14:10 -0800
commit4f88bd23baab4335e96d38828ef38124ec717eb9 (patch)
tree97f760c96b8799ee57a013f60cb76e781ddf1e62 /drivers/remoteproc/remoteproc_debugfs.c
parentbedf571986990046ddc4578e6378de146cf75b9e (diff)
parent1a5d5c592e902191bfa091ec9169aa43299a7d0f (diff)
Merge tag 'rproc-v4.15' of git://github.com/andersson/remoteproc
Pull remoteproc updates from Bjorn Andersson: "This adds an interface for configuring Qualcomm's "secure SMMU" and adds support for booting the modem Hexagon on MSM8996. Two new debugfs entries are added in the remoteproc core to introspect the list of memory carveouts and the loaded resource table" * tag 'rproc-v4.15' of git://github.com/andersson/remoteproc: remoteproc: qcom: Fix error handling paths in order to avoid memory leaks remoteproc: qcom: Drop pr_err in q6v5_xfer_mem_ownership() remoteproc: debug: add carveouts list dump feature remoteproc: debug: add resource table dump feature remoteproc: qcom: Add support for mss remoteproc on msm8996 remoteproc: qcom: Make secure world call for mem ownership switch remoteproc: qcom: refactor mss fw image loading sequence firmware: scm: Add new SCM call API for switching memory ownership
Diffstat (limited to 'drivers/remoteproc/remoteproc_debugfs.c')
-rw-r--r--drivers/remoteproc/remoteproc_debugfs.c130
1 files changed, 130 insertions, 0 deletions
diff --git a/drivers/remoteproc/remoteproc_debugfs.c b/drivers/remoteproc/remoteproc_debugfs.c
index 1c122e230cec..a20488336aa0 100644
--- a/drivers/remoteproc/remoteproc_debugfs.c
+++ b/drivers/remoteproc/remoteproc_debugfs.c
@@ -155,6 +155,132 @@ static const struct file_operations rproc_recovery_ops = {
.llseek = generic_file_llseek,
};
+/* Expose resource table content via debugfs */
+static int rproc_rsc_table_show(struct seq_file *seq, void *p)
+{
+ static const char * const types[] = {"carveout", "devmem", "trace", "vdev"};
+ struct rproc *rproc = seq->private;
+ struct resource_table *table = rproc->table_ptr;
+ struct fw_rsc_carveout *c;
+ struct fw_rsc_devmem *d;
+ struct fw_rsc_trace *t;
+ struct fw_rsc_vdev *v;
+ int i, j;
+
+ if (!table) {
+ seq_puts(seq, "No resource table found\n");
+ return 0;
+ }
+
+ for (i = 0; i < table->num; i++) {
+ int offset = table->offset[i];
+ struct fw_rsc_hdr *hdr = (void *)table + offset;
+ void *rsc = (void *)hdr + sizeof(*hdr);
+
+ switch (hdr->type) {
+ case RSC_CARVEOUT:
+ c = rsc;
+ seq_printf(seq, "Entry %d is of type %s\n", i, types[hdr->type]);
+ seq_printf(seq, " Device Address 0x%x\n", c->da);
+ seq_printf(seq, " Physical Address 0x%x\n", c->pa);
+ seq_printf(seq, " Length 0x%x Bytes\n", c->len);
+ seq_printf(seq, " Flags 0x%x\n", c->flags);
+ seq_printf(seq, " Reserved (should be zero) [%d]\n", c->reserved);
+ seq_printf(seq, " Name %s\n\n", c->name);
+ break;
+ case RSC_DEVMEM:
+ d = rsc;
+ seq_printf(seq, "Entry %d is of type %s\n", i, types[hdr->type]);
+ seq_printf(seq, " Device Address 0x%x\n", d->da);
+ seq_printf(seq, " Physical Address 0x%x\n", d->pa);
+ seq_printf(seq, " Length 0x%x Bytes\n", d->len);
+ seq_printf(seq, " Flags 0x%x\n", d->flags);
+ seq_printf(seq, " Reserved (should be zero) [%d]\n", d->reserved);
+ seq_printf(seq, " Name %s\n\n", d->name);
+ break;
+ case RSC_TRACE:
+ t = rsc;
+ seq_printf(seq, "Entry %d is of type %s\n", i, types[hdr->type]);
+ seq_printf(seq, " Device Address 0x%x\n", t->da);
+ seq_printf(seq, " Length 0x%x Bytes\n", t->len);
+ seq_printf(seq, " Reserved (should be zero) [%d]\n", t->reserved);
+ seq_printf(seq, " Name %s\n\n", t->name);
+ break;
+ case RSC_VDEV:
+ v = rsc;
+ seq_printf(seq, "Entry %d is of type %s\n", i, types[hdr->type]);
+
+ seq_printf(seq, " ID %d\n", v->id);
+ seq_printf(seq, " Notify ID %d\n", v->notifyid);
+ seq_printf(seq, " Device features 0x%x\n", v->dfeatures);
+ seq_printf(seq, " Guest features 0x%x\n", v->gfeatures);
+ seq_printf(seq, " Config length 0x%x\n", v->config_len);
+ seq_printf(seq, " Status 0x%x\n", v->status);
+ seq_printf(seq, " Number of vrings %d\n", v->num_of_vrings);
+ seq_printf(seq, " Reserved (should be zero) [%d][%d]\n\n",
+ v->reserved[0], v->reserved[1]);
+
+ for (j = 0; j < v->num_of_vrings; j++) {
+ seq_printf(seq, " Vring %d\n", j);
+ seq_printf(seq, " Device Address 0x%x\n", v->vring[j].da);
+ seq_printf(seq, " Alignment %d\n", v->vring[j].align);
+ seq_printf(seq, " Number of buffers %d\n", v->vring[j].num);
+ seq_printf(seq, " Notify ID %d\n", v->vring[j].notifyid);
+ seq_printf(seq, " Physical Address 0x%x\n\n",
+ v->vring[j].pa);
+ }
+ break;
+ default:
+ seq_printf(seq, "Unknown resource type found: %d [hdr: %p]\n",
+ hdr->type, hdr);
+ break;
+ }
+ }
+
+ return 0;
+}
+
+static int rproc_rsc_table_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, rproc_rsc_table_show, inode->i_private);
+}
+
+static const struct file_operations rproc_rsc_table_ops = {
+ .open = rproc_rsc_table_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .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);
@@ -198,6 +324,10 @@ void rproc_create_debug_dir(struct rproc *rproc)
rproc, &rproc_name_ops);
debugfs_create_file("recovery", 0400, rproc->dbg_dir,
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)

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