diff --git a/src/panfrost/vulkan/panvk_device.h b/src/panfrost/vulkan/panvk_device.h
index 258c8a2a044..a050ec44cac 100644
--- a/src/panfrost/vulkan/panvk_device.h
+++ b/src/panfrost/vulkan/panvk_device.h
@@ -159,7 +159,7 @@ panvk_device_adjust_bo_flags(const struct panvk_device *device,
     */
    const bool allow_wb_mmap =
       (pdev->kmod.dev->props.supported_bo_flags & PAN_KMOD_BO_FLAG_WB_MMAP) &&
-      !PANVK_DEBUG(DUMP);
+      !PANVK_DEBUG(DUMP) && !PANVK_DEBUG(NO_WB_MMAP);
 
    if (!allow_wb_mmap)
       bo_flags &= ~PAN_KMOD_BO_FLAG_WB_MMAP;
diff --git a/src/panfrost/vulkan/panvk_instance.c b/src/panfrost/vulkan/panvk_instance.c
index f2d4e61edf0..b72b59463ff 100644
--- a/src/panfrost/vulkan/panvk_instance.c
+++ b/src/panfrost/vulkan/panvk_instance.c
@@ -46,7 +46,9 @@ static const struct debug_control panvk_debug_options[] = {
    {"implicit_others_inv", PANVK_DEBUG_IMPLICIT_OTHERS_INV},
    {"force_blackhole", PANVK_DEBUG_FORCE_BLACKHOLE},
    {"wsi_afbc", PANVK_DEBUG_WSI_AFBC},
-   {NULL, 0}};
+   {"no_wb_mmap", PANVK_DEBUG_NO_WB_MMAP},
+   {NULL, 0},
+};
 
 uint64_t panvk_debug;
 
diff --git a/src/panfrost/vulkan/panvk_instance.h b/src/panfrost/vulkan/panvk_instance.h
index d5e7426ffc2..cb4df8d59ae 100644
--- a/src/panfrost/vulkan/panvk_instance.h
+++ b/src/panfrost/vulkan/panvk_instance.h
@@ -30,6 +30,7 @@ enum panvk_debug_flags {
    PANVK_DEBUG_IMPLICIT_OTHERS_INV = 1 << 11,
    PANVK_DEBUG_FORCE_BLACKHOLE = 1 << 12,
    PANVK_DEBUG_WSI_AFBC = 1 << 13,
+   PANVK_DEBUG_NO_WB_MMAP = 1 << 14,
 };
 
 extern uint64_t panvk_debug;