gpu: nvgpu: gk20a: Fix G_ELPG flush poll

We poll completion of flush sequence by polling the broadcast
register. The polling should be done for a per-slice register
instead.

Bug 1457723

Change-Id: I10aba939175b6d05b05f5f26eebebcbe09d9b4a7
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-on: http://git-master/r/382521
Reviewed-by: Juha Tukkinen <jtukkinen@nvidia.com>
Tested-by: Juha Tukkinen <jtukkinen@nvidia.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/gk20a.h b/drivers/gpu/nvgpu/gk20a/gk20a.h
index c19b2bf8..3bc53992 100644
--- a/drivers/gpu/nvgpu/gk20a/gk20a.h
+++ b/drivers/gpu/nvgpu/gk20a/gk20a.h
@@ -73,6 +73,7 @@ struct gpu_ops {
                 int  (*init_zbc)(struct gk20a *g, struct gr_gk20a *gr);
                 void (*init_cbc)(struct gk20a *g, struct gr_gk20a *gr);
                 void (*sync_debugfs)(struct gk20a *g);
+                void (*init_fs_state)(struct gk20a *g);
                 void (*elpg_flush)(struct gk20a *g);
         } ltc;
         struct {
@@ -287,6 +288,8 @@ struct gk20a {
 
         int irq_stall;
         int irq_nonstall;
+        u32 max_ltc_count;
+        u32 ltc_count;
 
         struct generic_pm_domain pd;