gpu: nvgpu: gv11b: move cbc init to mmu from ltc

Added cbc_init in fb and removed cbc_init from ltc.

Also avoid writing into read only registers in ltc.

GPUT19X-70
GPUT19X-116

Change-Id: Ife53e8ec7f049d666baacea3b7c45179e3e13ff9
Signed-off-by: seshendra Gadagottu <sgadagottu@nvidia.com>
Reviewed-on: http://git-master/r/1484525
Reviewed-by: Automatic_Commit_Validation_User
GVS: Gerrit_Virtual_Submit
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-by: svccoveritychecker <svccoveritychecker@nvidia.com>

1 files changed, 1 insertions, 4 deletions

diff --git a/drivers/gpu/nvgpu/gv11b/ltc_gv11b.c b/drivers/gpu/nvgpu/gv11b/ltc_gv11b.c
index b8a97ce3..5b98b0aa 100644
--- a/drivers/gpu/nvgpu/gv11b/ltc_gv11b.c
+++ b/drivers/gpu/nvgpu/gv11b/ltc_gv11b.c
@@ -53,10 +53,6 @@ static void gv11b_ltc_init_fs_state(struct gk20a *g)
         g->ltc_count = gk20a_readl(g, pri_ringmaster_enum_ltc_r());
         gk20a_dbg_info("%u ltcs out of %u", g->ltc_count, g->max_ltc_count);
 
-        reg = gk20a_readl(g, ltc_ltcs_ltss_cbc_num_active_ltcs_r());
-        reg |= ltc_ltcs_ltss_cbc_num_active_ltcs_serialize_f(true);
-        gk20a_writel(g, ltc_ltcs_ltss_cbc_num_active_ltcs_r(), reg);
-
         gk20a_writel(g, ltc_ltcs_ltss_dstg_cfg0_r(),
                 gk20a_readl(g, ltc_ltc0_lts0_dstg_cfg0_r()) |
                 ltc_ltcs_ltss_dstg_cfg0_vdc_4to2_disable_m());
@@ -200,4 +196,5 @@ void gv11b_init_ltc(struct gpu_ops *gops)
         gops->ltc.init_fs_state = gv11b_ltc_init_fs_state;
         gops->ltc.cbc_fix_config = gv11b_ltc_cbc_fix_config;
         gops->ltc.isr = gv11b_ltc_isr;
+        gops->ltc.init_cbc = NULL;
 }