i965: disable shadow batches when batch debugging.

If you want to dump batch state, it needs to have the relocs processed
but the relocs don't get processed on the shadow batch.

Choose debugging over speed here.

Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4846>

diff --git a/src/mesa/drivers/dri/i965/intel_batchbuffer.c b/src/mesa/drivers/dri/i965/intel_batchbuffer.c
index 74d2a3dc53e046d8eb8a6fa800f64dfde84f9409..bfb39c1ea86a7e99d5777493cb33775ea721786d 100644 (file)
--- a/src/mesa/drivers/dri/i965/intel_batchbuffer.c
+++ b/src/mesa/drivers/dri/i965/intel_batchbuffer.c
@@ -130,7 +130,11 @@ intel_batchbuffer_init(struct brw_context *brw)
    struct intel_batchbuffer *batch = &brw->batch;
    const struct gen_device_info *devinfo = &screen->devinfo;
 
-   batch->use_shadow_copy = !devinfo->has_llc;
+   if (unlikely(INTEL_DEBUG & DEBUG_BATCH)) {
+      /* The shadow doesn't get relocs written so state decode fails. */
+      batch->use_shadow_copy = false;
+   } else
+      batch->use_shadow_copy = !devinfo->has_llc;
 
    init_reloc_list(&batch->batch_relocs, 250);
    init_reloc_list(&batch->state_relocs, 250);