1 files changed, 80 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/os/linux/ecc_sysfs.c b/drivers/gpu/nvgpu/os/linux/ecc_sysfs.c
new file mode 100644
index 00000000..0962e247
--- /dev/null
+++ b/drivers/gpu/nvgpu/os/linux/ecc_sysfs.c
@@ -0,0 +1,80 @@
+/*
+ * Copyright (c) 2018, 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <nvgpu/ecc.h>
+
+#include "gk20a/gk20a.h"
+#include "os_linux.h"
+
+int nvgpu_ecc_sysfs_init(struct gk20a *g)
+{
+        struct device *dev = dev_from_gk20a(g);
+        struct nvgpu_ecc *ecc = &g->ecc;
+        struct dev_ext_attribute *attr;
+        struct nvgpu_os_linux *l = nvgpu_os_linux_from_gk20a(g);
+        struct nvgpu_ecc_stat *stat;
+        int i = 0, err;
+
+        attr = nvgpu_kzalloc(g, sizeof(*attr) * ecc->stats_count);
+        if (!attr)
+                return -ENOMEM;
+
+        nvgpu_list_for_each_entry(stat,
+                        &ecc->stats_list, nvgpu_ecc_stat, node) {
+                if (i >= ecc->stats_count) {
+                        err = -EINVAL;
+                        nvgpu_err(g, "stats_list longer than stats_count %d",
+                                        ecc->stats_count);
+                        break;
+                }
+                sysfs_attr_init(&attr[i].attr);
+                attr[i].attr.attr.name = stat->name;
+                attr[i].attr.attr.mode = VERIFY_OCTAL_PERMISSIONS(S_IRUGO);
+                attr[i].var =  &stat->counter;
+                attr[i].attr.show = device_show_int;
+                err = device_create_file(dev, &attr[i].attr);
+                if (err) {
+                        nvgpu_err(g, "sysfs node create failed for %s\n",
+                                        stat->name);
+                        break;
+                }
+                i++;
+        }
+
+        if (err) {
+                while (i-- > 0)
+                        device_remove_file(dev, &attr[i].attr);
+                nvgpu_kfree(g, attr);
+                return err;
+        }
+
+        l->ecc_attrs = attr;
+
+        return 0;
+}
+
+void nvgpu_ecc_sysfs_remove(struct gk20a *g)
+{
+        struct device *dev = dev_from_gk20a(g);
+        struct nvgpu_os_linux *l = nvgpu_os_linux_from_gk20a(g);
+        struct nvgpu_ecc *ecc = &g->ecc;
+        int i;
+
+        for (i = 0; i < ecc->stats_count; i++)
+                device_remove_file(dev, &l->ecc_attrs[i].attr);
+        nvgpu_kfree(g, l->ecc_attrs);
+        l->ecc_attrs = NULL;
+}