[PATCH 07/12] amdgpu: using IB flags for TMZ or non-TMZ

[Aaron Liu]

In kernel, cs->in.flags is used for TMZ. Hence libdrm should transfer
the flag to kernel.

Signed-off-by: Aaron Liu <aaron.liu at amd.com>
---
 amdgpu/amdgpu.h    | 4 +++-
 amdgpu/amdgpu_cs.c | 4 ++++
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/amdgpu/amdgpu.h b/amdgpu/amdgpu.h
index f45f9f7..aee3f3d 100644
--- a/amdgpu/amdgpu.h
+++ b/amdgpu/amdgpu.h
@@ -342,7 +342,9 @@ struct amdgpu_cs_fence_info {
  * \sa amdgpu_cs_submit()
 */
 struct amdgpu_cs_request {
-	/** Specify flags with additional information */
+	/** Specify flags with additional information
+	 * 0-normal, 1-tmz
+	 */
 	uint64_t flags;
 
 	/** Specify HW IP block type to which to send the IB. */
diff --git a/amdgpu/amdgpu_cs.c b/amdgpu/amdgpu_cs.c
index 437c4a4..6f70771 100644
--- a/amdgpu/amdgpu_cs.c
+++ b/amdgpu/amdgpu_cs.c
@@ -254,6 +254,10 @@ static int amdgpu_cs_submit_one(amdgpu_context_handle context,
 	memset(&cs, 0, sizeof(cs));
 	cs.in.chunks = (uint64_t)(uintptr_t)chunk_array;
 	cs.in.ctx_id = context->id;
+	/* in kernel, _pad is used as flags
+	 * #define AMDGPU_CS_FLAGS_SECURE          (1 << 0)
+	 */
+	cs.in._pad = (uint32_t)ibs_request->flags;
 	if (ibs_request->resources)
 		cs.in.bo_list_handle = ibs_request->resources->handle;
 	cs.in.num_chunks = ibs_request->number_of_ibs;
-- 
2.7.4