0 causes instruction fetch stall at cache line boundary under some
conditions on Navi10. A non-zero prefetch is the preferred default
in any case.

Fixes soft hang in Luxmark.

Signed-off-by: Jay Cornwall <[email protected]>
---
 drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager_v10.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager_v10.c 
b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager_v10.c
index 72e4d61ac752..ad0593342333 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager_v10.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager_v10.c
@@ -58,8 +58,9 @@ static int update_qpd_v10(struct device_queue_manager *dqm,
        /* check if sh_mem_config register already configured */
        if (qpd->sh_mem_config == 0) {
                qpd->sh_mem_config =
-                               SH_MEM_ALIGNMENT_MODE_UNALIGNED <<
-                                       SH_MEM_CONFIG__ALIGNMENT_MODE__SHIFT;
+                       (SH_MEM_ALIGNMENT_MODE_UNALIGNED <<
+                               SH_MEM_CONFIG__ALIGNMENT_MODE__SHIFT) |
+                       (3 << SH_MEM_CONFIG__INITIAL_INST_PREFETCH__SHIFT);
 #if 0
                /* TODO:
                 *    This shouldn't be an issue with Navi10.  Verify.
-- 
2.17.1

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