mesa/repos/testing-x86_64/0001-anv-force-MEDIA_INTERFACE_DESCRIPTOR_LOAD-reemit-aft.patch

   1 From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
   2 From: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
   3 Date: Sun, 12 Jun 2022 23:59:05 +0300
   4 Subject: [PATCH] anv: force MEDIA_INTERFACE_DESCRIPTOR_LOAD reemit after
   5  3D->GPGPU switch
   6
   7 Seems to fix a hang in the following titles :
   8    - Age of Empire 4
   9    - Monster Hunter Rise
  10
  11 where the HW is hung on a PIPE_CONTROL after a GPGPU_WALKER but no
  12 MEDIA_INTERFACE_DESCRIPTOR_LOAD was emitted since the switch from 3D
  13 to GPGPU.
  14
  15 This would happen in the following case :
  16
  17    vkCmdBindPipeline(COMPUTE, cs_pipeline);
  18    vkCmdDispatch(...);
  19    vkCmdBindPipeline(GRAPHICS, gfx_pipeline);
  20    vkCmdDraw(...);
  21    vkCmdDispatch(...);
  22
  23 Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
  24 ---
  25  src/intel/vulkan/genX_cmd_buffer.c | 14 ++++++++++++++
  26  1 file changed, 14 insertions(+)
  27
  28 diff --git a/src/intel/vulkan/genX_cmd_buffer.c b/src/intel/vulkan/genX_cmd_buffer.c
  29 index 17629fb7ac87..1651c29d9ebd 100644
  30 --- a/src/intel/vulkan/genX_cmd_buffer.c
  31 +++ b/src/intel/vulkan/genX_cmd_buffer.c
  32 @@ -6003,6 +6003,20 @@ genX(flush_pipeline_select)(struct anv_cmd_buffer *cmd_buffer,
  33     }
  34  #endif
  35
  36 +#if GFX_VERx10 == 120
  37 +   /* Undocumented workaround to force the re-emission of
  38 +    * MEDIA_INTERFACE_DESCRIPTOR_LOAD when switching from 3D to Compute
  39 +    * pipeline without rebinding a pipeline :
  40 +    *    vkCmdBindPipeline(COMPUTE, cs_pipeline);
  41 +    *    vkCmdDispatch(...);
  42 +    *    vkCmdBindPipeline(GRAPHICS, gfx_pipeline);
  43 +    *    vkCmdDraw(...);
  44 +    *    vkCmdDispatch(...);
  45 +    */
  46 +   if (pipeline == _3D)
  47 +      cmd_buffer->state.compute.pipeline_dirty = true;
  48 +#endif
  49 +
  50     /* From "BXML » GT » MI » vol1a GPU Overview » [Instruction]
  51      * PIPELINE_SELECT [DevBWR+]":
  52      *