[PATCH i-g-t v5 06/17] lib/intel_batchbuffer: Add helper to get pointer at specified offset

[Christoph Manszewski <christoph.manszewski@intel.com>]

From: Andrzej Hajda <andrzej.hajda@intel.com>

The helper will be used to access data placed in batchbuffer.

Signed-off-by: Andrzej Hajda <andrzej.hajda@intel.com>
Cc: Mika Kuoppala <mika.kuoppala@intel.com>
Cc: Dominik Grzegorzek <dominik.grzegorzek@intel.com>
Acked-by: Dominik Grzegorzek <dominik.grzegorzek@intel.com>
---
 lib/intel_batchbuffer.h | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/lib/intel_batchbuffer.h b/lib/intel_batchbuffer.h
index cb32206e5..b1670d23e 100644
--- a/lib/intel_batchbuffer.h
+++ b/lib/intel_batchbuffer.h
@@ -353,6 +353,13 @@ static inline uint32_t intel_bb_offset(struct intel_bb *ibb)
 	return (uint32_t) ((uint8_t *) ibb->ptr - (uint8_t *) ibb->batch);
 }
 
+static inline void *intel_bb_ptr_get(struct intel_bb *ibb, uint32_t offset)
+{
+	igt_assert(offset <= ibb->size);
+
+	return ((uint8_t *) ibb->batch + offset);
+}
+
 static inline void intel_bb_ptr_set(struct intel_bb *ibb, uint32_t offset)
 {
 	ibb->ptr = (void *) ((uint8_t *) ibb->batch + offset);
-- 
2.34.1