gpu: nvgpu: gv11b: handle l2 related changes

Implemented gv11b specific l2 state init and Configured
ltc_ltcs_ltss_cbc_num_active_ltcs_r with following info:

- cbc_num_active_ltcs is read only for gv11b, so did not
  write any data to that field.
- enforced serilized access to l2 from sysmem and peermem.
- nvlink connected peer trafic sent through l2

JIRA GV11B-71

Change-Id: I63d9ee3f0a6da62e672a34e207f1f5214b6ed1b4
Signed-off-by: seshendra Gadagottu <sgadagottu@nvidia.com>
Reviewed-on: http://git-master/r/1312831
GVS: Gerrit_Virtual_Submit
Reviewed-by: svccoveritychecker <svccoveritychecker@nvidia.com>
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>

1 files changed, 21 insertions, 1 deletions

diff --git a/drivers/gpu/nvgpu/include/nvgpu/hw/gv11b/hw_ltc_gv11b.h b/drivers/gpu/nvgpu/include/nvgpu/hw/gv11b/hw_ltc_gv11b.h
index 6968c699..45d3df07 100644
--- a/drivers/gpu/nvgpu/include/nvgpu/hw/gv11b/hw_ltc_gv11b.h
+++ b/drivers/gpu/nvgpu/include/nvgpu/hw/gv11b/hw_ltc_gv11b.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2016, NVIDIA CORPORATION.  All rights reserved.
+ * Copyright (c) 2016-2017, NVIDIA CORPORATION.  All rights reserved.
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms and conditions of the GNU General Public License,
@@ -174,6 +174,26 @@ static inline u32 ltc_ltcs_ltss_cbc_num_active_ltcs_r(void)
 {
         return 0x0017e27c;
 }
+static inline u32 ltc_ltcs_ltss_cbc_num_active_ltcs__v(u32 r)
+{
+        return (r >> 0) & 0x1f;
+}
+static inline u32 ltc_ltcs_ltss_cbc_num_active_ltcs_nvlink_peer_through_l2_f(u32 v)
+{
+        return (v & 0x1) << 24;
+}
+static inline u32 ltc_ltcs_ltss_cbc_num_active_ltcs_nvlink_peer_through_l2_v(u32 r)
+{
+        return (r >> 24) & 0x1;
+}
+static inline u32 ltc_ltcs_ltss_cbc_num_active_ltcs_serialize_f(u32 v)
+{
+        return (v & 0x1) << 25;
+}
+static inline u32 ltc_ltcs_ltss_cbc_num_active_ltcs_serialize_v(u32 r)
+{
+        return (r >> 25) & 0x1;
+}
 static inline u32 ltc_ltcs_misc_ltc_num_active_ltcs_r(void)
 {
         return 0x0017e000;