radv,radeonsi: emit UPDATE_DB_SUMMARIZER_TIMEOUT on GFX12

This try to mitigate the HiZ GPU hang by increasing a timeout. Loosely
based on PAL but I can confirm it delays the hang when
BOTTOM_OF_PIPE_TS is used as a workaround.

This must be emitted when the GFX queue is idle.

Cc: mesa-stable
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/35212>

src/amd/common/sid.h

@@ -324,6 +324,9 @@
 #define   S_D10_CACHE_POLICY(x)                       ((x & 3) << 2)
 #define   S_D10_POLL_INTERVAL(x)                      ((x & 0xFFFF) << 16)
 
+#define PKT3_UPDATE_DB_SUMMARIZER_TIMEOUT    0xEF /* GFX12+ */
+#define   S_EF1_SUMM_CNTL_EVICT_TIMEOUT(x)   ((x & 0xFFF) << 0)
+
 #define PKT2_NOP_PAD PKT_TYPE_S(2)
 #define PKT3_NOP_PAD PKT3(PKT3_NOP, 0x3fff, 0) /* header-only version */
 

src/amd/vulkan/radv_queue.c

@@ -700,6 +700,14 @@ radv_emit_ge_rings(struct radv_device *device, struct radeon_cmdbuf *cs, struct
                   S_0309AC_PAF_TEMPORAL(gfx12_store_high_temporal_stay_dirty) |
                   S_0309AC_PAB_TEMPORAL(gfx12_load_last_use_discard) | S_0309AC_SPEC_DATA_READ(gfx12_spec_read_auto) |
                   S_0309AC_FORCE_SE_SCOPE(1) | S_0309AC_PAB_NOFILL(1)); /* R_0309AC_GE_PRIM_RING_SIZE */
+
+      if (pdev->info.gfx_level == GFX12) {
+         /* Mitigate the HiZ GPU hang by increasing a timeout when BOTTOM_OF_PIPE_TS is used as the
+          * workaround. This must be emitted when the gfx queue is idle.
+          */
+         radeon_emit(PKT3(PKT3_UPDATE_DB_SUMMARIZER_TIMEOUT, 0, 0));
+         radeon_emit(S_EF1_SUMM_CNTL_EVICT_TIMEOUT(0xfff));
+      }
    }
 
    radeon_end();

src/gallium/drivers/radeonsi/si_state_shaders.cpp

@@ -5160,6 +5160,17 @@ static void si_emit_spi_ge_ring_state(struct si_context *sctx, unsigned index)
                      S_0309AC_SPEC_DATA_READ(gfx12_spec_read_auto) |
                      S_0309AC_FORCE_SE_SCOPE(1) |
                      S_0309AC_PAB_NOFILL(1));         /* R_0309AC_GE_PRIM_RING_SIZE */
+
+         if (sctx->gfx_level == GFX12) {
+            /* Mitigate the HiZ GPU hang by increasing a timeout when
+             * BOTTOM_OF_PIPE_TS is used as the workaround. This must be
+             * emitted when the gfx queue is idle.
+             */
+            const uint32_t timeout = sscreen->options.alt_hiz_logic ? 0xfff : 0;
+
+            radeon_emit(PKT3(PKT3_UPDATE_DB_SUMMARIZER_TIMEOUT, 0, 0));
+            radeon_emit(S_EF1_SUMM_CNTL_EVICT_TIMEOUT(timeout));
+         }
       }
       radeon_end();
    }