gpu: nvgpu: vgpu: ecc sysfs support for vgpu

- fetch ecc info from RM server and create sysfs nodes
- new file ecc_vgpu.c for platform-independent code
- add 2 new commands: GET_ECC_INFO and GET_ECC_COUNTER_VALUE

JIRA EVLR-2590

Change-Id: I040a9fcd23326e432ca93e9a028319f9c1c570f0
Signed-off-by: Kyle Guo <kyleg@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1777428
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

1 files changed, 39 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/vgpu/ecc_vgpu.h b/drivers/gpu/nvgpu/vgpu/ecc_vgpu.h
new file mode 100644
index 00000000..0fcaa3fa
--- /dev/null
+++ b/drivers/gpu/nvgpu/vgpu/ecc_vgpu.h
@@ -0,0 +1,39 @@
+/*
+ * Copyright (c) 2018, NVIDIA CORPORATION.  All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#ifndef _ECC_VGPU_H_
+#define _ECC_VGPU_H_
+
+#include <nvgpu/types.h>
+#include <nvgpu/ecc.h>  /* For NVGPU_ECC_STAT_NAME_MAX_SIZE */
+
+struct gk20a;
+
+struct vgpu_ecc_stat {
+        u32 ecc_id;
+        char name[NVGPU_ECC_STAT_NAME_MAX_SIZE + 1];
+};
+
+int vgpu_ecc_get_info(struct gk20a *g);
+void vgpu_ecc_remove_info(struct gk20a *g);
+
+#endif