gpu: nvgpu: Add support for engine specific counters

Add support for chip engine specific error counters

JIRA: GPUT19X-82

Change-Id: I1b2686bd58c2d4e060a0a79c6b9e505811490a90
Signed-off-by: David Nieto <dmartineznie@nvidia.com>
Reviewed-on: http://git-master/r/1490824
Reviewed-by: svccoveritychecker <svccoveritychecker@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>

2 files changed, 8 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/ecc_gk20a.h b/drivers/gpu/nvgpu/gk20a/ecc_gk20a.h
index 1628cf8c..ec8ee19b 100644
--- a/drivers/gpu/nvgpu/gk20a/ecc_gk20a.h
+++ b/drivers/gpu/nvgpu/gk20a/ecc_gk20a.h
@@ -50,6 +50,12 @@ struct ecc_gk20a {
 #endif
         } ltc;
 
+        struct {
+#ifdef CONFIG_TEGRA_19x_GPU
+                struct ecc_eng_t19x t19x;
+#endif
+        } eng;
+
 };
 
 #endif /*__ECC_GK20A_H__*/
diff --git a/drivers/gpu/nvgpu/tegra/linux/platform_gp10b_tegra.c b/drivers/gpu/nvgpu/tegra/linux/platform_gp10b_tegra.c
index 971ef66a..a2878c8b 100644
--- a/drivers/gpu/nvgpu/tegra/linux/platform_gp10b_tegra.c
+++ b/drivers/gpu/nvgpu/tegra/linux/platform_gp10b_tegra.c
@@ -494,6 +494,8 @@ static ssize_t ecc_stat_show(struct device *dev,
                 ecc_stat_base_name = &(ecc_stat_full_name[strlen("gpc0_tpc0_")]);
         } else if (sscanf(ecc_stat_full_name, "gpc%u", &hw_unit) == 1) {
                 ecc_stat_base_name = &(ecc_stat_full_name[strlen("gpc0_")]);
+        } else if (sscanf(ecc_stat_full_name, "eng%u", &hw_unit) == 1) {
+                ecc_stat_base_name = &(ecc_stat_full_name[strlen("eng0_")]);
         } else {
                 return snprintf(buf,
                                 PAGE_SIZE,