Mesa (master): anv: Fix output of INTEL_DEBUG=bat for chained batches

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Module: Mesa
Branch: master
Commit: e2155158e99e405313d6bc4d4478b92b4234dc4e
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=e2155158e99e405313d6bc4d4478b92b4234dc4e

Author: Caio Marcelo de Oliveira Filho <caio.oliveira at intel.com>
Date:   Mon Oct 28 14:46:23 2019 -0700

anv: Fix output of INTEL_DEBUG=bat for chained batches

The anv_batch_bo contents are linked one to another, and when printing
we have to start with the first of those.  Since in `u_vector` new
elements are added to the head, to get the first element we need the
vector's tail.

Fixes: 32ffd90002b ("anv: add support for INTEL_DEBUG=bat")
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin at intel.com>

---

 src/intel/vulkan/anv_batch_chain.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/intel/vulkan/anv_batch_chain.c b/src/intel/vulkan/anv_batch_chain.c
index 0d4da389da1..0e1a2e496ec 100644
--- a/src/intel/vulkan/anv_batch_chain.c
+++ b/src/intel/vulkan/anv_batch_chain.c
@@ -1732,7 +1732,7 @@ anv_cmd_buffer_execbuf(struct anv_device *device,
 
    if (cmd_buffer) {
       if (unlikely(INTEL_DEBUG & DEBUG_BATCH)) {
-         struct anv_batch_bo **bo = u_vector_head(&cmd_buffer->seen_bbos);
+         struct anv_batch_bo **bo = u_vector_tail(&cmd_buffer->seen_bbos);
 
          device->cmd_buffer_being_decoded = cmd_buffer;
          gen_print_batch(&device->decoder_ctx, (*bo)->bo.map,