drm/amdgpu: Support passing amdgpu critical error to host via GPU Mailbox.

This feature works for SRIOV enviroment. For non-SRIOV enviroment, the
trans_error function does nothing.

The error information includes error_code (16bit), error_flags(16bit)
and error_data(64bit). Since there are not many errors, we keep the
errors in an array and transfer all errors to Host before amdgpu
initialization function (amdgpu_device_init) exit.

Signed-off-by: Gavin Wan <Gavin.Wan@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

1 files changed, 62 insertions, 0 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vf_error.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_vf_error.h
new file mode 100644
index 000000000000..2a3278ec76ba
--- /dev/null
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vf_error.h
@@ -0,0 +1,62 @@
+/*
+ * Copyright 2017 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) OR AUTHOR(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.
+ *
+ */
+
+#ifndef __VF_ERROR_H__
+#define __VF_ERROR_H__
+
+#define AMDGIM_ERROR_CODE_FLAGS_TO_MAILBOX(c,f)    (((c & 0xFFFF) << 16) | (f & 0xFFFF))
+#define AMDGIM_ERROR_CODE(t,c)       (((t&0xF)<<12)|(c&0xFFF))
+
+/* Please keep enum same as AMD GIM driver */
+enum AMDGIM_ERROR_VF {
+	AMDGIM_ERROR_VF_ATOMBIOS_INIT_FAIL = 0,
+	AMDGIM_ERROR_VF_NO_VBIOS,
+	AMDGIM_ERROR_VF_GPU_POST_ERROR,
+	AMDGIM_ERROR_VF_ATOMBIOS_GET_CLOCK_FAIL,
+	AMDGIM_ERROR_VF_FENCE_INIT_FAIL,
+
+	AMDGIM_ERROR_VF_AMDGPU_INIT_FAIL,
+	AMDGIM_ERROR_VF_IB_INIT_FAIL,
+	AMDGIM_ERROR_VF_AMDGPU_LATE_INIT_FAIL,
+	AMDGIM_ERROR_VF_ASIC_RESUME_FAIL,
+	AMDGIM_ERROR_VF_GPU_RESET_FAIL,
+
+	AMDGIM_ERROR_VF_TEST,
+	AMDGIM_ERROR_VF_MAX
+};
+
+enum AMDGIM_ERROR_CATEGORY {
+	AMDGIM_ERROR_CATEGORY_NON_USED = 0,
+	AMDGIM_ERROR_CATEGORY_GIM,
+	AMDGIM_ERROR_CATEGORY_PF,
+	AMDGIM_ERROR_CATEGORY_VF,
+	AMDGIM_ERROR_CATEGORY_VBIOS,
+	AMDGIM_ERROR_CATEGORY_MONITOR,
+
+	AMDGIM_ERROR_CATEGORY_MAX
+};
+
+void amdgpu_vf_error_put(uint16_t sub_error_code, uint16_t error_flags, uint64_t error_data);
+void amdgpu_vf_error_trans_all (struct amdgpu_device *adev);
+
+#endif /* __VF_ERROR_H__ */