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path: root/drivers/gpu/drm/amd/amdgpu/amdgpu_nbio.c
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Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_nbio.c')
-rw-r--r--drivers/gpu/drm/amd/amdgpu/amdgpu_nbio.c84
1 files changed, 84 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_nbio.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_nbio.c
new file mode 100644
index 000000000000..7d5c3a9de9ea
--- /dev/null
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_nbio.c
@@ -0,0 +1,84 @@
+/*
+ * Copyright (C) 2019 Advanced Micro Devices, Inc.
+ *
+ * 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 COPYRIGHT HOLDER(S) 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.
+ */
+
+#include "amdgpu.h"
+#include "amdgpu_ras.h"
+
+int amdgpu_nbio_ras_late_init(struct amdgpu_device *adev)
+{
+ int r;
+ struct ras_ih_if ih_info = {
+ .cb = NULL,
+ };
+ struct ras_fs_if fs_info = {
+ .sysfs_name = "pcie_bif_err_count",
+ .debugfs_name = "pcie_bif_err_inject",
+ };
+
+ if (!adev->nbio.ras_if) {
+ adev->nbio.ras_if = kmalloc(sizeof(struct ras_common_if), GFP_KERNEL);
+ if (!adev->nbio.ras_if)
+ return -ENOMEM;
+ adev->nbio.ras_if->block = AMDGPU_RAS_BLOCK__PCIE_BIF;
+ adev->nbio.ras_if->type = AMDGPU_RAS_ERROR__MULTI_UNCORRECTABLE;
+ adev->nbio.ras_if->sub_block_index = 0;
+ strcpy(adev->nbio.ras_if->name, "pcie_bif");
+ }
+ ih_info.head = fs_info.head = *adev->nbio.ras_if;
+ r = amdgpu_ras_late_init(adev, adev->nbio.ras_if,
+ &fs_info, &ih_info);
+ if (r)
+ goto free;
+
+ if (amdgpu_ras_is_supported(adev, adev->nbio.ras_if->block)) {
+ r = amdgpu_irq_get(adev, &adev->nbio.ras_controller_irq, 0);
+ if (r)
+ goto late_fini;
+ r = amdgpu_irq_get(adev, &adev->nbio.ras_err_event_athub_irq, 0);
+ if (r)
+ goto late_fini;
+ } else {
+ r = 0;
+ goto free;
+ }
+
+ return 0;
+late_fini:
+ amdgpu_ras_late_fini(adev, adev->nbio.ras_if, &ih_info);
+free:
+ kfree(adev->nbio.ras_if);
+ adev->nbio.ras_if = NULL;
+ return r;
+}
+
+void amdgpu_nbio_ras_fini(struct amdgpu_device *adev)
+{
+ if (amdgpu_ras_is_supported(adev, AMDGPU_RAS_BLOCK__PCIE_BIF) &&
+ adev->nbio.ras_if) {
+ struct ras_common_if *ras_if = adev->nbio.ras_if;
+ struct ras_ih_if ih_info = {
+ .cb = NULL,
+ };
+
+ amdgpu_ras_late_fini(adev, ras_if, &ih_info);
+ kfree(ras_if);
+ }
+}