diff --git a/docs/envvars.rst b/docs/envvars.rst
index 258a9d46d51..678895c8d89 100644
--- a/docs/envvars.rst
+++ b/docs/envvars.rst
@@ -1755,6 +1755,14 @@ RadeonSI driver environment variables
       Disable register shadowing in userqueue. This will also disable userqueue mcbp.
    ``novideotiling``
       Disable tiling for video.
+   ``nodectier1``
+      Disable tier1 for video decode.
+   ``nodectier2``
+      Disable tier2 for video decode.
+   ``nodectier3``
+      Disable tier3 for video decode.
+   ``noenctier2``
+      Disable tier2 for video encode.
 
 r600 driver environment variables
 ---------------------------------
diff --git a/src/gallium/drivers/radeonsi/radeon_vcn_dec.c b/src/gallium/drivers/radeonsi/radeon_vcn_dec.c
index 5c007f46b74..46e11207e0d 100644
--- a/src/gallium/drivers/radeonsi/radeon_vcn_dec.c
+++ b/src/gallium/drivers/radeonsi/radeon_vcn_dec.c
@@ -2760,6 +2760,9 @@ static void radeon_dec_destroy_fence(struct pipe_video_codec *decoder,
 
 static bool radeon_dec_enable_tier3(struct si_context *sctx, uint32_t codec)
 {
+   if (sctx->screen->multimedia_debug_flags & DBG(NO_DECODE_TIER3))
+      return false;
+
    if (sctx->vcn_ip_ver < VCN_5_0_0)
       return false;
 
@@ -2768,6 +2771,9 @@ static bool radeon_dec_enable_tier3(struct si_context *sctx, uint32_t codec)
 
 static bool radeon_dec_enable_tier2(struct si_context *sctx, uint32_t codec)
 {
+   if (sctx->screen->multimedia_debug_flags & DBG(NO_DECODE_TIER2))
+      return false;
+
    if (sctx->vcn_ip_ver < VCN_3_0_0)
       return false;
 
@@ -2777,6 +2783,9 @@ static bool radeon_dec_enable_tier2(struct si_context *sctx, uint32_t codec)
 
 static bool radeon_dec_enable_tier1(struct si_context *sctx, uint32_t codec)
 {
+   if (sctx->screen->multimedia_debug_flags & DBG(NO_DECODE_TIER1))
+      return false;
+
    if (sctx->vcn_ip_ver > VCN_2_6_0)
       return false;
 
diff --git a/src/gallium/drivers/radeonsi/radeon_vcn_enc.c b/src/gallium/drivers/radeonsi/radeon_vcn_enc.c
index 5dec72870b6..79a4536f625 100644
--- a/src/gallium/drivers/radeonsi/radeon_vcn_enc.c
+++ b/src/gallium/drivers/radeonsi/radeon_vcn_enc.c
@@ -2019,7 +2019,8 @@ struct pipe_video_codec *radeon_create_encoder(struct pipe_context *context,
 
    ac_vcn_enc_init_cmds(&enc->cmd, sscreen->info.vcn_ip_version);
 
-   if (sscreen->info.vcn_ip_version >= VCN_5_0_0)
+   if (sscreen->info.vcn_ip_version >= VCN_5_0_0 &&
+       !(sscreen->multimedia_debug_flags & DBG(NO_ENCODE_TIER2)))
       enc->dpb_type = DPB_TIER_2;
 
    if (enc->dpb_type == DPB_TIER_2)
diff --git a/src/gallium/drivers/radeonsi/si_pipe.c b/src/gallium/drivers/radeonsi/si_pipe.c
index 1c368cf6f38..e00875c7e15 100644
--- a/src/gallium/drivers/radeonsi/si_pipe.c
+++ b/src/gallium/drivers/radeonsi/si_pipe.c
@@ -129,6 +129,10 @@ static const struct debug_named_value radeonsi_multimedia_debug_options[] = {
    {"noefc", DBG(NO_EFC), "Disable hardware based encoder colour format conversion."},
    {"lowlatencyenc", DBG(LOW_LATENCY_ENCODE), "Enable low latency encoding."},
    {"novideotiling", DBG(NO_VIDEO_TILING), "Disable tiling for video."},
+   {"nodectier1", DBG(NO_DECODE_TIER1), "Disable tier1 for video decode."},
+   {"nodectier2", DBG(NO_DECODE_TIER2), "Disable tier2 for video decode."},
+   {"nodectier3", DBG(NO_DECODE_TIER3), "Disable tier3 for video decode."},
+   {"noenctier2", DBG(NO_ENCODE_TIER2), "Disable tier2 for video encode."},
 
    DEBUG_NAMED_VALUE_END /* must be last */
 };
diff --git a/src/gallium/drivers/radeonsi/si_pipe.h b/src/gallium/drivers/radeonsi/si_pipe.h
index 4923f6ec869..83fbc7aeb8e 100644
--- a/src/gallium/drivers/radeonsi/si_pipe.h
+++ b/src/gallium/drivers/radeonsi/si_pipe.h
@@ -257,6 +257,10 @@ enum
    DBG_NO_EFC,
    DBG_LOW_LATENCY_ENCODE,
    DBG_NO_VIDEO_TILING,
+   DBG_NO_DECODE_TIER1,
+   DBG_NO_DECODE_TIER2,
+   DBG_NO_DECODE_TIER3,
+   DBG_NO_ENCODE_TIER2,
 };
 
 enum