winsys/radeon: add a flag telling how gfx IBs should be padded

This is always false on amdgpu (set by calloc).

Reviewed-by: Alex Deucher <[email protected]>
Acked-by: Christian König <[email protected]>

2 files changed, 9 insertions, 6 deletions

diff --git a/src/gallium/winsys/radeon/drm/radeon_drm_cs.c b/src/gallium/winsys/radeon/drm/radeon_drm_cs.c
index 341af55df8b..2c4f990944c 100644
--- a/src/gallium/winsys/radeon/drm/radeon_drm_cs.c
+++ b/src/gallium/winsys/radeon/drm/radeon_drm_cs.c
@@ -466,14 +466,10 @@ static void radeon_drm_cs_flush(struct radeon_winsys_cs *rcs,
         }
         break;
     case RING_GFX:
-        /* pad DMA ring to 8 DWs to meet CP fetch alignment requirements
+        /* pad GFX ring to 8 DWs to meet CP fetch alignment requirements
          * r6xx, requires at least 4 dw alignment to avoid a hw bug.
-         * hawaii with old firmware needs type2 nop packet.
-         * accel_working2 with value 3 indicates the new firmware.
          */
-        if (cs->ws->info.chip_class <= SI ||
-            (cs->ws->info.family == CHIP_HAWAII &&
-             cs->ws->accel_working2 < 3)) {
+        if (cs->ws->info.gfx_ib_pad_with_type2) {
             while (rcs->cdw & 7)
                 OUT_CS(&cs->base, 0x80000000); /* type2 nop packet */
         } else {
diff --git a/src/gallium/winsys/radeon/drm/radeon_drm_winsys.c b/src/gallium/winsys/radeon/drm/radeon_drm_winsys.c
index 384d7280380..5d440eb7696 100644
--- a/src/gallium/winsys/radeon/drm/radeon_drm_winsys.c
+++ b/src/gallium/winsys/radeon/drm/radeon_drm_winsys.c
@@ -469,6 +469,13 @@ static boolean do_winsys_init(struct radeon_drm_winsys *ws)
         ws->info.cik_macrotile_mode_array_valid = TRUE;
     }
 
+    /* Hawaii with old firmware needs type2 nop packet.
+     * accel_working2 with value 3 indicates the new firmware.
+     */
+    ws->info.gfx_ib_pad_with_type2 = ws->info.chip_class <= SI ||
+				     (ws->info.family == CHIP_HAWAII &&
+				      ws->accel_working2 < 3);
+
     return TRUE;
 }