gpu: nvgpu: Add Fuse prints on PMU Halt

-Print fuse values in case of PMU halt error
-and mailbox reads 0xDEADDEAD

Bug 1737044

Change-Id: I59f5fcf4a69bdd2a2eea81a69dd99bb9c4c21e1d
Signed-off-by: Supriya <ssharatkumar@nvidia.com>
Reviewed-on: http://git-master/r/1113464
(cherry picked from commit d0320eed72c5070c4fcc7564c02fa38599984751)
Reviewed-on: http://git-master/r/1120429
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>

1 files changed, 14 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/gm20b/pmu_gm20b.c b/drivers/gpu/nvgpu/gm20b/pmu_gm20b.c
index ce3da2b6..34d1c30c 100644
--- a/drivers/gpu/nvgpu/gm20b/pmu_gm20b.c
+++ b/drivers/gpu/nvgpu/gm20b/pmu_gm20b.c
@@ -14,12 +14,14 @@
  */
 
 #include <linux/delay.h>        /* for udelay */
+#include <linux/tegra-fuse.h>
 #include "gk20a/gk20a.h"
 #include "gk20a/pmu_gk20a.h"
 #include "acr_gm20b.h"
 #include "pmu_gm20b.h"
 #include "hw_gr_gm20b.h"
 #include "hw_pwr_gm20b.h"
+#include "hw_fuse_gm20b.h"
 
 /*!
  * Structure/object which single register write need to be done during PG init
@@ -289,6 +291,17 @@ static void gm20b_write_dmatrfbase(struct gk20a *g, u32 addr)
         gk20a_writel(g, pwr_falcon_dmatrfbase_r(), addr);
 }
 
+/*Dump Security related fuses*/
+static void pmu_dump_security_fuses_gm20b(struct gk20a *g)
+{
+        gk20a_err(dev_from_gk20a(g), "FUSE_OPT_SEC_DEBUG_EN_0 : 0x%x",
+                        gk20a_readl(g, fuse_opt_sec_debug_en_r()));
+        gk20a_err(dev_from_gk20a(g), "FUSE_OPT_PRIV_SEC_EN_0 : 0x%x",
+                        gk20a_readl(g, fuse_opt_priv_sec_en_r()));
+        gk20a_err(dev_from_gk20a(g), "FUSE_GCPLEX_CONFIG_FUSE_0 : 0x%x",
+                        tegra_fuse_readl(FUSE_GCPLEX_CONFIG_FUSE_0));
+}
+
 void gm20b_init_pmu_ops(struct gpu_ops *gops)
 {
         if (gops->privsecurity) {
@@ -309,4 +322,5 @@ void gm20b_init_pmu_ops(struct gpu_ops *gops)
         gops->pmu.pmu_elpg_statistics = gk20a_pmu_elpg_statistics;
         gops->pmu.pmu_pg_grinit_param = NULL;
         gops->pmu.send_lrf_tex_ltc_dram_overide_en_dis_cmd = NULL;
+        gops->pmu.dump_secure_fuses = pmu_dump_security_fuses_gm20b;
 }