gpu: nvgpu: dump PGRAPH_PRI on error

dumps NV_PGRAPH_PRI_GPC0_GPCCS_FS_GPC
whenever pbus sends the 0xbadf13 error

bug 1662268

Change-Id: I302ffe5c86098e7235ecc8c071a5e2c852455565
Signed-off-by: Sam Payne <spayne@nvidia.com>
Reviewed-on: http://git-master/r/789090
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>

1 files changed, 8 insertions, 2 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/gk20a.c b/drivers/gpu/nvgpu/gk20a/gk20a.c
index 121e442c..7875d621 100644
--- a/drivers/gpu/nvgpu/gk20a/gk20a.c
+++ b/drivers/gpu/nvgpu/gk20a/gk20a.c
@@ -544,7 +544,7 @@ static irqreturn_t gk20a_intr_isr_nonstall(int irq, void *dev_id)
 
 void gk20a_pbus_isr(struct gk20a *g)
 {
-        u32 val;
+        u32 val, err_code;
         val = gk20a_readl(g, bus_intr_0_r());
         if (val & (bus_intr_0_pri_squash_m() |
                         bus_intr_0_pri_fecserr_m() |
@@ -557,9 +557,15 @@ void gk20a_pbus_isr(struct gk20a *g)
                 gk20a_err(&g->dev->dev,
                         "NV_PTIMER_PRI_TIMEOUT_SAVE_1: 0x%x\n",
                         gk20a_readl(g, timer_pri_timeout_save_1_r()));
+                err_code = gk20a_readl(g, timer_pri_timeout_fecs_errcode_r());
                 gk20a_err(&g->dev->dev,
                         "NV_PTIMER_PRI_TIMEOUT_FECS_ERRCODE: 0x%x\n",
-                        gk20a_readl(g, timer_pri_timeout_fecs_errcode_r()));
+                        err_code);
+                if (err_code == 0xbadf13)
+                        gk20a_err(&g->dev->dev,
+                        "NV_PGRAPH_PRI_GPC0_GPCCS_FS_GPC: 0x%x\n",
+                        gk20a_readl(g, gr_gpc0_fs_gpc_r()));
+
         }
 
         if (val)