[igt-dev] [PATCH i-g-t 1/3] lib/intel_batchbuffer: add create without relocs

[Kamil Konieczny <kamil.konieczny@linux.intel.com>]

There is create function with relocations, so add its
counterpart without it.

v3: moved down after intel_bb_create_with_relocs_and_context,
    added function description (Zbigniew review)
v2: change to HIGH_TO_LOW allocation (Zbigniew)

Signed-off-by: Kamil Konieczny <kamil.konieczny@linux.intel.com>
Cc: Zbigniew Kempczyński <zbigniew.kempczynski@intel.com>
---
 lib/intel_batchbuffer.c | 21 +++++++++++++++++++++
 lib/intel_batchbuffer.h |  1 +
 2 files changed, 22 insertions(+)

diff --git a/lib/intel_batchbuffer.c b/lib/intel_batchbuffer.c
index 2cd472d1..ebf3c598 100644
--- a/lib/intel_batchbuffer.c
+++ b/lib/intel_batchbuffer.c
@@ -1558,6 +1558,27 @@ intel_bb_create_with_relocs_and_context(int i915, uint32_t ctx, uint32_t size)
 				 INTEL_ALLOCATOR_NONE, ALLOC_STRATEGY_NONE);
 }
 
+/**
+ * intel_bb_create_no_relocs:
+ * @i915: drm fd
+ * @size: size of the batchbuffer
+ *
+ * Creates bb with disabled relocations.
+ * This enables passing addresses and requires pinning objects.
+ *
+ * Returns:
+ *
+ * Pointer the intel_bb, asserts on failure.
+ */
+struct intel_bb *intel_bb_create_no_relocs(int i915, uint32_t size)
+{
+	igt_require(gem_uses_full_ppgtt(i915));
+
+	return __intel_bb_create(i915, 0, size, false, 0, 0,
+				 INTEL_ALLOCATOR_SIMPLE,
+				 ALLOC_STRATEGY_HIGH_TO_LOW);
+}
+
 static void __intel_bb_destroy_relocations(struct intel_bb *ibb)
 {
 	uint32_t i;
diff --git a/lib/intel_batchbuffer.h b/lib/intel_batchbuffer.h
index 75d41ea3..36b6b61d 100644
--- a/lib/intel_batchbuffer.h
+++ b/lib/intel_batchbuffer.h
@@ -526,6 +526,7 @@ intel_bb_create_with_context(int i915, uint32_t ctx, uint32_t size);
 struct intel_bb *intel_bb_create_with_relocs(int i915, uint32_t size);
 struct intel_bb *
 intel_bb_create_with_relocs_and_context(int i915, uint32_t ctx, uint32_t size);
+struct intel_bb *intel_bb_create_no_relocs(int i915, uint32_t size);
 void intel_bb_destroy(struct intel_bb *ibb);
 
 /* make it safe to use intel_allocator after failed test */
-- 
2.32.0