gpu: nvgpu: gv11b: disable cbm alpha/beta cache invalidates

Disabled CBM alpha and beta cache invalidates as required
by hw. Since these registers are context switched out, added
these invalidates as part of gr init sequence, so golden context
restore these settings for all contexts.

Bug 2040262

Change-Id: Iffdd03f2ac6440ddd615899c407cfee692460918
Signed-off-by: seshendra Gadagottu <sgadagottu@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1648948
Reviewed-by: Sami Kiminki <skiminki@nvidia.com>
Tested-by: Sami Kiminki <skiminki@nvidia.com>
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
GVS: Gerrit_Virtual_Submit
Tested-by: Chris Dragan <kdragan@nvidia.com>
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

1 files changed, 8 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/gv11b/gr_gv11b.c b/drivers/gpu/nvgpu/gv11b/gr_gv11b.c
index 61529a01..857f4944 100644
--- a/drivers/gpu/nvgpu/gv11b/gr_gv11b.c
+++ b/drivers/gpu/nvgpu/gv11b/gr_gv11b.c
@@ -2711,6 +2711,14 @@ int gr_gv11b_init_fs_state(struct gk20a *g)
                         gr_gpcs_tpcs_sm_texio_control_oor_addr_check_mode_arm_63_48_match_f());
         gk20a_writel(g, gr_gpcs_tpcs_sm_texio_control_r(), data);
 
+        /* Disable CBM alpha and beta invalidations for l2 */
+        data = gk20a_readl(g, gr_gpcs_ppcs_cbm_debug_r());
+        data = set_field(data, gr_gpcs_ppcs_cbm_debug_invalidate_alpha_m(),
+                        gr_gpcs_ppcs_cbm_debug_invalidate_alpha_disable_f());
+        data = set_field(data, gr_gpcs_ppcs_cbm_debug_invalidate_beta_m(),
+                        gr_gpcs_ppcs_cbm_debug_invalidate_beta_disable_f());
+        gk20a_writel(g, gr_gpcs_ppcs_cbm_debug_r(), data);
+
         data = gk20a_readl(g, gr_gpcs_tpcs_sm_disp_ctrl_r());
         data = set_field(data, gr_gpcs_tpcs_sm_disp_ctrl_re_suppress_m(),
                          gr_gpcs_tpcs_sm_disp_ctrl_re_suppress_disable_f());