winsys/amdgpu: Add support for const IB.

v2: Use the correct IB to update request (Bas Nieuwenhuizen)
v3: Add preamble IB. (Bas Nieuwenhuizen)
Reviewed-by: Marek Olšák <[email protected]>

1 files changed, 10 insertions, 1 deletions

diff --git a/src/gallium/winsys/amdgpu/drm/amdgpu_cs.h b/src/gallium/winsys/amdgpu/drm/amdgpu_cs.h
index 888b85b77b1..4ed830b34b7 100644
--- a/src/gallium/winsys/amdgpu/drm/amdgpu_cs.h
+++ b/src/gallium/winsys/amdgpu/drm/amdgpu_cs.h
@@ -59,8 +59,17 @@ struct amdgpu_ib {
    unsigned                used_ib_space;
 };
 
+enum {
+   IB_CONST_PREAMBLE = 0,
+   IB_CONST = 1, /* the const IB must be first */
+   IB_MAIN = 2,
+   IB_NUM
+};
+
 struct amdgpu_cs {
    struct amdgpu_ib main; /* must be first because this is inherited */
+   struct amdgpu_ib const_ib; /* optional constant engine IB */
+   struct amdgpu_ib const_preamble_ib;
    struct amdgpu_ctx *ctx;
 
    /* Flush CS. */
@@ -70,7 +79,7 @@ struct amdgpu_cs {
    /* amdgpu_cs_submit parameters */
    enum ring_type              ring_type;
    struct amdgpu_cs_request    request;
-   struct amdgpu_cs_ib_info    ib;
+   struct amdgpu_cs_ib_info    ib[IB_NUM];
 
    /* Buffers. */
    unsigned                    max_num_buffers;