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anv: add an undocumented HW workaround for Gfx12.5

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Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Acked-by: Caio Oliveira <caio.oliveira@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/34872>
This commit is contained in:
Lionel Landwerlin
2025-07-10 23:59:58 +03:00
committed by Marge Bot
parent 4314c891f4
commit d8add9866b
1 changed files with 21 additions and 0 deletions
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src/intel/vulkan/genX_gfx_state.c
+21
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@@ -3936,6 +3936,27 @@ genX(cmd_buffer_flush_gfx_hw_state)(struct anv_cmd_buffer *cmd_buffer)
BITSET_SET(hw_state->emit_dirty, ANV_GFX_STATE_MULTISAMPLE);
#endif
#if GFX_VERx10 == 125
if (intel_device_info_is_dg2(device->info)) {
/* On DG2 & MTL, dEQP-VK.shader_object.binding.mesh_swap_task fails on
* both simulation & HW, dEQP-VK.shader_object.binding.mesh_swap_mesh
* fails on HW.
*
* We can get the first test to pass more often by reemitting
* 3DSTATE_TASK_CONTROL but the other nothing is helping but a CS stall.
*
* What seems to happen is that the new shader offset programmed isn't
* applied and instead the HW reexecutes the previous shader.
*/
if ((BITSET_TEST(hw_state->emit_dirty, ANV_GFX_STATE_TASK_SHADER) ||
BITSET_TEST(hw_state->emit_dirty, ANV_GFX_STATE_MESH_SHADER)) &&
gfx->shaders[MESA_SHADER_MESH] != NULL) {
genx_batch_emit_pipe_control(&cmd_buffer->batch, device->info,
_3D, ANV_PIPE_CS_STALL_BIT);
}
}
#endif
/* Wa_18020335297 - Apply the WA when viewport ptr is reprogrammed. */
if (intel_needs_workaround(device->info, 18020335297) &&
BITSET_TEST(hw_state->emit_dirty, ANV_GFX_STATE_VIEWPORT_CC) &&