gpu: nvgpu: remove gk20a_reset_priv_ring

gk20a_reset_priv_ring does not help resetting priv ring.
Chip reset is the only way to recover.

Bug 200300756

Change-Id: Ia913d46b0e71cd42e9ce242b2393c50f4d12e002
Signed-off-by: Seema Khowala <seemaj@nvidia.com>
Reviewed-on: http://git-master/r/1471445
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

1 files changed, 0 insertions, 27 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/priv_ring_gk20a.c b/drivers/gpu/nvgpu/gk20a/priv_ring_gk20a.c
index 1584ffda..96e21d2d 100644
--- a/drivers/gpu/nvgpu/gk20a/priv_ring_gk20a.c
+++ b/drivers/gpu/nvgpu/gk20a/priv_ring_gk20a.c
@@ -45,27 +45,6 @@ void gk20a_enable_priv_ring(struct gk20a *g)
 
 }
 
-static void gk20a_reset_priv_ring(struct gk20a *g)
-{
-        u32 val;
-
-        g->ops.mc.reset(g, mc_enable_priv_ring_enabled_f());
-
-        val = gk20a_readl(g, pri_ringstation_sys_decode_config_r());
-        val = set_field(val,
-                        pri_ringstation_sys_decode_config_ring_m(),
-                        pri_ringstation_sys_decode_config_ring_drop_on_ring_not_started_f());
-        gk20a_writel(g, pri_ringstation_sys_decode_config_r(), val);
-
-        gk20a_writel(g, pri_ringmaster_global_ctl_r(),
-                        pri_ringmaster_global_ctl_ring_reset_asserted_f());
-        nvgpu_udelay(20);
-        gk20a_writel(g, pri_ringmaster_global_ctl_r(),
-                        pri_ringmaster_global_ctl_ring_reset_deasserted_f());
-
-        gk20a_enable_priv_ring(g);
-}
-
 void gk20a_priv_ring_isr(struct gk20a *g)
 {
         u32 status0, status1;
@@ -83,12 +62,6 @@ void gk20a_priv_ring_isr(struct gk20a *g)
         gk20a_dbg(gpu_dbg_intr, "ringmaster intr status0: 0x%08x,"
                 "status1: 0x%08x", status0, status1);
 
-        if (pri_ringmaster_intr_status0_ring_start_conn_fault_v(status0) != 0 ||
-            pri_ringmaster_intr_status0_disconnect_fault_v(status0) != 0 ||
-            pri_ringmaster_intr_status0_overflow_fault_v(status0) != 0) {
-                gk20a_reset_priv_ring(g);
-        }
-
         if (pri_ringmaster_intr_status0_gbl_write_error_sys_v(status0) != 0) {
                 gk20a_dbg(gpu_dbg_intr, "SYS write error. ADR %08x WRDAT %08x INFO %08x, CODE %08x",
                         gk20a_readl(g, pri_ringstation_sys_priv_error_adr_r()),