1 files changed, 66 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/gp10b/gp10b_sysfs.c b/drivers/gpu/nvgpu/gp10b/gp10b_sysfs.c
new file mode 100644
index 00000000..800f39c3
--- /dev/null
+++ b/drivers/gpu/nvgpu/gp10b/gp10b_sysfs.c
@@ -0,0 +1,66 @@
+/*
+ * GP10B specific sysfs files
+ *
+ * Copyright (c) 2016, NVIDIA CORPORATION.  All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ */
+
+#include <linux/platform_device.h>
+
+#include "gk20a/gk20a.h"
+#include "gp10b_sysfs.h"
+
+#define ROOTRW (S_IRWXU|S_IRGRP|S_IROTH)
+
+static ssize_t ecc_enable_store(struct device *device,
+                struct device_attribute *attr, const char *buf, size_t count)
+{
+        struct platform_device *ndev = to_platform_device(device);
+        struct gk20a *g = get_gk20a(ndev);
+        u32 ecc_mask;
+        u32 err = 0;
+
+        err = sscanf(buf, "%d", &ecc_mask);
+        if (err == 1) {
+                err = g->ops.pmu.send_lrf_tex_ltc_dram_overide_en_dis_cmd
+                        (g, ecc_mask);
+                if (err)
+                        dev_err(device, "ECC override did not happen\n");
+        } else
+                return -EINVAL;
+        return count;
+}
+
+static ssize_t ecc_enable_read(struct device *device,
+                struct device_attribute *attr, char *buf)
+{
+        struct platform_device *ndev = to_platform_device(device);
+        struct gk20a *g = get_gk20a(ndev);
+
+        return sprintf(buf, "ecc override =0x%x\n",
+                        g->ops.gr.get_lrf_tex_ltc_dram_override(g));
+}
+
+static DEVICE_ATTR(ecc_enable, ROOTRW, ecc_enable_read, ecc_enable_store);
+
+void gp10b_create_sysfs(struct platform_device *dev)
+{
+        int error = 0;
+
+        error |= device_create_file(&dev->dev, &dev_attr_ecc_enable);
+        if (error)
+                dev_err(&dev->dev, "Failed to create sysfs attributes!\n");
+}
+
+void gp10b_remove_sysfs(struct device *dev)
+{
+        device_remove_file(dev, &dev_attr_ecc_enable);
+}