gpu: ngpu: add fb ops for hub isr

If supported, detect and handle hub interrupt

JIRA GPUT19X-7

Change-Id: I431c92160636afb2bc94ff2677614023de595681
Signed-off-by: Seema Khowala <seemaj@nvidia.com>
Reviewed-on: http://git-master/r/1313452
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

1 files changed, 6 insertions, 1 deletions

diff --git a/drivers/gpu/nvgpu/gp10b/mc_gp10b.c b/drivers/gpu/nvgpu/gp10b/mc_gp10b.c
index 4b0cbc1c..4a8dc4c1 100644
--- a/drivers/gpu/nvgpu/gp10b/mc_gp10b.c
+++ b/drivers/gpu/nvgpu/gp10b/mc_gp10b.c
@@ -131,7 +131,7 @@ irqreturn_t mc_gp10b_intr_thread_stall(struct gk20a *g)
         mc_intr_0 = gk20a_readl(g, mc_intr_r(0));
         hw_irq_count = atomic_read(&g->hw_irq_stall_count);
 
-        gk20a_dbg(gpu_dbg_intr, "stall intr %08x\n", mc_intr_0);
+        gk20a_dbg(gpu_dbg_intr, "stall intr 0x%08x\n", mc_intr_0);
 
         for (engine_id_idx = 0; engine_id_idx < g->fifo.num_engines; engine_id_idx++) {
                 active_engine_id = g->fifo.active_engines_list[engine_id_idx];
@@ -153,6 +153,9 @@ irqreturn_t mc_gp10b_intr_thread_stall(struct gk20a *g)
                         }
                 }
         }
+        if (g->ops.mc.is_intr_hub_pending &&
+                 g->ops.mc.is_intr_hub_pending(g, mc_intr_0))
+                g->ops.fb.hub_isr(g);
         if (mc_intr_0 & mc_intr_pfifo_pending_f())
                 gk20a_fifo_isr(g);
         if (mc_intr_0 & mc_intr_pmu_pending_f())
@@ -167,6 +170,8 @@ irqreturn_t mc_gp10b_intr_thread_stall(struct gk20a *g)
         /* sync handled irq counter before re-enabling interrupts */
         atomic_set(&g->sw_irq_stall_last_handled, hw_irq_count);
 
+        gk20a_dbg(gpu_dbg_intr, "stall intr done 0x%08x\n", mc_intr_0);
+
         gk20a_writel(g, mc_intr_en_set_r(NVGPU_MC_INTR_STALLING),
                         g->ops.mc.intr_mask_restore[NVGPU_MC_INTR_STALLING]);