gpu: nvgpu: gv11b: add tpc floor sweeping code

Added TPC floor sweeping code for gv11b.

JIRA GV11B-73

Change-Id: Ib0d05e2d606fe13dff119948fbc9022e8af0fa7f
Signed-off-by: seshendra Gadagottu <sgadagottu@nvidia.com>
Reviewed-on: http://git-master/r/1315257
Reviewed-by: svccoveritychecker <svccoveritychecker@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-by: Navneet Kumar <navneetk@nvidia.com>

1 files changed, 26 insertions, 1 deletions

diff --git a/drivers/gpu/nvgpu/gv11b/gr_gv11b.c b/drivers/gpu/nvgpu/gv11b/gr_gv11b.c
index c512322b..fabc6819 100644
--- a/drivers/gpu/nvgpu/gv11b/gr_gv11b.c
+++ b/drivers/gpu/nvgpu/gv11b/gr_gv11b.c
@@ -2007,7 +2007,32 @@ void gr_gv11b_init_elcg_mode(struct gk20a *g, u32 mode, u32 engine)
 
 static void gr_gv11b_load_tpc_mask(struct gk20a *g)
 {
-        /* TODO */
+        u32 pes_tpc_mask = 0, fuse_tpc_mask;
+        u32 gpc, pes, val;
+        u32 num_tpc_per_gpc = nvgpu_get_litter_value(g,
+                                GPU_LIT_NUM_TPC_PER_GPC);
+
+        /* gv11b has 1 GPC and 4 TPC/GPC, so mask will not overflow u32 */
+        for (gpc = 0; gpc < g->gr.gpc_count; gpc++) {
+                for (pes = 0; pes < g->gr.pe_count_per_gpc; pes++) {
+                        pes_tpc_mask |= g->gr.pes_tpc_mask[pes][gpc] <<
+                                num_tpc_per_gpc * gpc;
+                }
+        }
+
+        gk20a_dbg_info("pes_tpc_mask %u\n", pes_tpc_mask);
+        fuse_tpc_mask = g->ops.gr.get_gpc_tpc_mask(g, gpc);
+        if (g->tpc_fs_mask_user &&
+                        g->tpc_fs_mask_user != fuse_tpc_mask &&
+                        fuse_tpc_mask == (0x1U << g->gr.max_tpc_count) - 1U) {
+                val = g->tpc_fs_mask_user;
+                val &= (0x1U << g->gr.max_tpc_count) - 1U;
+                val = (0x1U << hweight32(val)) - 1U;
+                gk20a_writel(g, gr_fe_tpc_fs_r(0), val);
+        } else {
+                gk20a_writel(g, gr_fe_tpc_fs_r(0), pes_tpc_mask);
+        }
+
 }
 
 void gv11b_init_gr(struct gpu_ops *gops)