gpu: nvgpu: gm20b: dynamically detect priv security for secure boot of falcon

based on the config setting and fuse secure no non secure boot is done

Change-Id: I5937ba945c5a3a86f72e0f2a9078fcde01977137
Signed-off-by: Vijayakumar <vsubbu@nvidia.com>
Reviewed-on: http://git-master/r/487684
Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>

1 files changed, 16 insertions, 11 deletions

diff --git a/drivers/gpu/nvgpu/gm20b/gr_gm20b.c b/drivers/gpu/nvgpu/gm20b/gr_gm20b.c
index c9c32b9f..7949405c 100644
--- a/drivers/gpu/nvgpu/gm20b/gr_gm20b.c
+++ b/drivers/gpu/nvgpu/gm20b/gr_gm20b.c
@@ -31,12 +31,11 @@ static void gr_gm20b_init_gpc_mmu(struct gk20a *g)
 
         gk20a_dbg_info("initialize gpc mmu");
 
-#ifndef CONFIG_TEGRA_ACR
-        /* Bypass MMU check for non-secure boot. For
-         * secure-boot,this register write has no-effect */
-        gk20a_writel(g, fb_priv_mmu_phy_secure_r(), 0xffffffff);
-#endif
-
+        if (!g->ops.privsecurity) {
+                /* Bypass MMU check for non-secure boot. For
+                 * secure-boot,this register write has no-effect */
+                gk20a_writel(g, fb_priv_mmu_phy_secure_r(), 0xffffffff);
+        }
         temp = gk20a_readl(g, fb_mmu_ctrl_r());
         temp &= gr_gpcs_pri_mmu_ctrl_vm_pg_size_m() |
                 gr_gpcs_pri_mmu_ctrl_use_pdb_big_page_size_m() |
@@ -722,6 +721,13 @@ static int gr_gm20b_load_ctxsw_ucode(struct gk20a *g)
 
         return 0;
 }
+#else
+
+static int gr_gm20b_load_ctxsw_ucode(struct gk20a *g)
+{
+        return -EPERM;
+}
+
 #endif
 
 void gm20b_init_gr(struct gpu_ops *gops)
@@ -745,11 +751,10 @@ void gm20b_init_gr(struct gpu_ops *gops)
         gops->gr.init_fs_state = gr_gm20b_ctx_state_floorsweep;
         gops->gr.set_hww_esr_report_mask = gr_gm20b_set_hww_esr_report_mask;
         gops->gr.falcon_load_ucode = gr_gm20b_load_ctxsw_ucode_segments;
-#ifdef CONFIG_TEGRA_ACR
-        gops->gr.load_ctxsw_ucode = gr_gm20b_load_ctxsw_ucode;
-#else
-        gops->gr.load_ctxsw_ucode = gr_gk20a_load_ctxsw_ucode;
-#endif
+        if (gops->privsecurity)
+                gops->gr.load_ctxsw_ucode = gr_gm20b_load_ctxsw_ucode;
+        else
+                gops->gr.load_ctxsw_ucode = gr_gk20a_load_ctxsw_ucode;
         gops->gr.get_gpc_tpc_mask = gr_gm20b_get_gpc_tpc_mask;
         gops->gr.free_channel_ctx = gk20a_free_channel_ctx;
         gops->gr.alloc_obj_ctx = gk20a_alloc_obj_ctx;