gpu: nvgpu: Add ECC Support for GV11B in Linux

Implement nvgpu plumbing to allow reporting ECC errors(corrected
and uncorrected) to a L1SS service(if one exists).

This patch includes the following

1) Added code that submits ECC error reports via the Interrupt context
directly to a L1SS service in linux OS.

2) Added support for enabling/disabling the error reports via L1SS's
registration/deregistration API. Nvgpu simply invokes an empty function
until the registration is successful.

3) Added Spinlock to correctly handle concurrency for accessing the
correct Ops for submitting requests.

4) Adds error reporting for a subset of interrupts that can be verified
via external ECC injection logic. A subsequent patch will add the
API for rest of the interrupts.

5) In case of critical(uncorrected errors), change nvgpu's state to
quiesce state.

Jira L4T-1187
Bug 200700400

Change-Id: Id31f70531fba355e94e72c4f9762593e7667a11c
Signed-off-by: Debarshi Dutta <ddutta@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2530411
Tested-by: Bibek Basu <bbasu@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
Reviewed-by: Bibek Basu <bbasu@nvidia.com>
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
GVS: Gerrit_Virtual_Submit

1 files changed, 49 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/os/linux/ecc_linux.h b/drivers/gpu/nvgpu/os/linux/ecc_linux.h
new file mode 100644
index 00000000..7e0f650b
--- /dev/null
+++ b/drivers/gpu/nvgpu/os/linux/ecc_linux.h
@@ -0,0 +1,49 @@
+/*
+ *
+ * Copyright (c) 2021, 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 NVGPU_OS_ECC_LINUX_H
+#define NVGPU_OS_ECC_LINUX_H
+
+#ifdef CONFIG_NVGPU_SUPPORT_LINUX_ECC_ERROR_REPORTING
+
+#include <linux/tegra_l1ss_kernel_interface.h>
+#include <linux/tegra_l1ss_ioctl.h>
+#include <linux/tegra_nv_guard_service_id.h>
+#include <linux/tegra_nv_guard_group_id.h>
+
+#include <nvgpu/nvgpu_err.h>
+
+struct nvgpu_ecc_reporting_linux {
+    struct nvgpu_ecc_reporting common;
+    client_param_t priv;
+};
+
+static inline struct nvgpu_ecc_reporting_linux *get_ecc_reporting_linux(
+    struct nvgpu_ecc_reporting *ecc_report)
+{
+        return container_of(ecc_report, struct nvgpu_ecc_reporting_linux, common);
+}
+
+#endif /* CONFIG_NVGPU_SUPPORT_LINUX_ECC_ERROR_REPORTING */
+
+#endif
\ No newline at end of file