From b0fa3fda3a0bcb53706da72166946b8bcae07c92 Mon Sep 17 00:00:00 2001
From: Mary Guillemard <mary.guillemard@collabora.com>
Date: Mon, 24 Jun 2024 08:52:51 +0200
Subject: [PATCH] panvk: Skip dispatch on empty workgroup

Fix "dEQP-VK.compute.pipeline.basic.empty_workgroup_*" crashes.

Signed-off-by: Mary Guillemard <mary.guillemard@collabora.com>
Reviewed-by: Erik Faye-Lund <erik.faye-lund@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29872>
---
 src/panfrost/vulkan/jm/panvk_vX_cmd_dispatch.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/panfrost/vulkan/jm/panvk_vX_cmd_dispatch.c b/src/panfrost/vulkan/jm/panvk_vX_cmd_dispatch.c
index e89ffc2dae5..9e8c33e2fd8 100644
--- a/src/panfrost/vulkan/jm/panvk_vX_cmd_dispatch.c
+++ b/src/panfrost/vulkan/jm/panvk_vX_cmd_dispatch.c
@@ -40,6 +40,9 @@ panvk_per_arch(CmdDispatchBase)(VkCommandBuffer commandBuffer,
    VK_FROM_HANDLE(panvk_cmd_buffer, cmdbuf, commandBuffer);
    const struct panvk_shader *shader = cmdbuf->state.compute.shader;
 
+   if (groupCountX == 0 || groupCountY == 0 || groupCountZ == 0)
+      return;
+
    /* If there's no compute shader, we can skip the dispatch. */
    if (!panvk_priv_mem_dev_addr(shader->rsd))
       return;