libpdbg: Add support for getring on POWER9

Add basic support for a getring operation on POWER9.

Signed-off-by: Alistair Popple <alistair@popple.id.au>

1 files changed, 12 insertions, 0 deletions

diff --git a/libpdbg/chip.c b/libpdbg/chip.c
index 06ea4e9..79bc87d 100644
--- a/libpdbg/chip.c
+++ b/libpdbg/chip.c
@@ -272,3 +272,15 @@ int ram_getmem(struct pdbg_target *thread, uint64_t addr, uint64_t *value)
 	*value = results[3];
 	return 0;
 }
+
+/*
+ * Read the given ring from the given chiplet. Result must be large enough to hold ring_len bits.
+ */
+int getring(struct pdbg_target *chiplet_target, uint64_t ring_addr, uint64_t ring_len, uint32_t result[])
+{
+	struct chiplet *chiplet;
+
+	assert(!strcmp(chiplet_target->class, "chiplet"));
+	chiplet = target_to_chiplet(chiplet_target);
+	return chiplet->getring(chiplet, ring_addr, ring_len, result);
+}