Mesa (master): anv/blorp: Flush the texture cache in UpdateBuffer

[Jason Ekstrand]

Module: Mesa
Branch: master
Commit: 939337e49fb8a6e16f83e4e030743f91b1b05cc5
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=939337e49fb8a6e16f83e4e030743f91b1b05cc5

Author: Jason Ekstrand <jason.ekstrand at intel.com>
Date:   Fri Mar 31 15:33:51 2017 -0700

anv/blorp: Flush the texture cache in UpdateBuffer

Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin at intel.com>
Cc: "13.0 17.0" <mesa-stable at lists.freedesktop.org>

---

 src/intel/vulkan/anv_blorp.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/intel/vulkan/anv_blorp.c b/src/intel/vulkan/anv_blorp.c
index 4904ee3a5f..1755663e2a 100644
--- a/src/intel/vulkan/anv_blorp.c
+++ b/src/intel/vulkan/anv_blorp.c
@@ -690,12 +690,19 @@ void anv_CmdUpdateBuffer(
 
    assert(max_update_size < MAX_SURFACE_DIM * 4);
 
+   /* We're about to read data that was written from the CPU.  Flush the
+    * texture cache so we don't get anything stale.
+    */
+   cmd_buffer->state.pending_pipe_bits |= ANV_PIPE_TEXTURE_CACHE_INVALIDATE_BIT;
+
    while (dataSize) {
       const uint32_t copy_size = MIN2(dataSize, max_update_size);
 
       struct anv_state tmp_data =
          anv_cmd_buffer_alloc_dynamic_state(cmd_buffer, copy_size, 64);
 
+      anv_state_flush(cmd_buffer->device, tmp_data);
+
       memcpy(tmp_data.map, pData, copy_size);
 
       int bs = 16;