Re: [PATCH i-g-t] lib: Don't specify a non-existent blitter ring

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On 18/02/20 06:47, Chris Wilson wrote:
I915_EXEC_BLT only exists on gen6+

Closes: https://gitlab.freedesktop.org/drm/intel/issues/1256
Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>

Acked-by: Antonio Argenziano <antonio.argenziano@xxxxxxxxx>

---
  lib/intel_batchbuffer.c | 23 ++++++++---------------
  1 file changed, 8 insertions(+), 15 deletions(-)

diff --git a/lib/intel_batchbuffer.c b/lib/intel_batchbuffer.c
index 5a00481cf..f1a45b473 100644
--- a/lib/intel_batchbuffer.c
+++ b/lib/intel_batchbuffer.c
@@ -695,20 +695,13 @@ fill_object(struct drm_i915_gem_exec_object2 *obj, uint32_t gem_handle,
static void exec_blit(int fd,
  		      struct drm_i915_gem_exec_object2 *objs, uint32_t count,
-		      uint32_t batch_len /* in dwords */)
+		      int gen)
  {
-	struct drm_i915_gem_execbuffer2 exec;
-
-	exec.buffers_ptr = to_user_pointer(objs);
-	exec.buffer_count = count;
-	exec.batch_start_offset = 0;
-	exec.batch_len = batch_len * 4;
-	exec.DR1 = exec.DR4 = 0;
-	exec.num_cliprects = 0;
-	exec.cliprects_ptr = 0;
-	exec.flags = I915_EXEC_BLT;
-	i915_execbuffer2_set_context_id(exec, 0);
-	exec.rsvd2 = 0;
+	struct drm_i915_gem_execbuffer2 exec = {
+		.buffers_ptr = to_user_pointer(objs),
+		.buffer_count = count,
+		.flags = gen >= 6 ? I915_EXEC_BLT : 0,
+	};
gem_execbuf(fd, &exec);
  }
@@ -892,7 +885,7 @@ void igt_blitter_src_copy(int fd,
  	objs[0].flags |= EXEC_OBJECT_NEEDS_FENCE;
  	objs[1].flags |= EXEC_OBJECT_NEEDS_FENCE;
- exec_blit(fd, objs, 3, ARRAY_SIZE(batch));
+	exec_blit(fd, objs, 3, gen);
gem_close(fd, batch_handle);
  }
@@ -985,7 +978,7 @@ void igt_blitter_fast_copy__raw(int fd,
  	fill_object(&objs[1], src_handle, NULL, 0);
  	fill_object(&objs[2], batch_handle, relocs, 2);
- exec_blit(fd, objs, 3, ARRAY_SIZE(batch));
+	exec_blit(fd, objs, 3, intel_gen(intel_get_drm_devid(fd)));
gem_close(fd, batch_handle);
  }

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