gpu: nvgpu: handle replayable mmu fault during waiting for SM lockdown

outstanding replayable mmu fault will prevent SM from lockdown, so
handle the replayable mmu fault while polling lockdown status.

Jira EVLR-2643
Bug 200405202

Change-Id: I811f16ef4394a6cc42a5f37a17e426dd749c5652
Signed-off-by: Richard Zhao <rizhao@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1741997
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

1 files changed, 12 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/gv11b/fb_gv11b.c b/drivers/gpu/nvgpu/gv11b/fb_gv11b.c
index 9fd6c857..18906c01 100644
--- a/drivers/gpu/nvgpu/gv11b/fb_gv11b.c
+++ b/drivers/gpu/nvgpu/gv11b/fb_gv11b.c
@@ -1289,6 +1289,18 @@ void gv11b_fb_handle_dropped_mmu_fault(struct gk20a *g, u32 fault_status)
         }
 }
 
+void gv11b_fb_handle_replayable_mmu_fault(struct gk20a *g)
+{
+        u32 fault_status = gk20a_readl(g, fb_mmu_fault_status_r());
+
+        if (!(fault_status & fb_mmu_fault_status_replayable_m()))
+                return;
+
+        if (gv11b_fb_is_fault_buf_enabled(g, NONREPLAY_REG_INDEX)) {
+                gv11b_fb_handle_mmu_nonreplay_replay_fault(g,
+                                fault_status, REPLAY_REG_INDEX);
+        }
+}
 
 static void gv11b_fb_handle_mmu_fault(struct gk20a *g, u32 niso_intr)
 {