Add nbio v7_9 ras functions.
Signed-off-by: YiPeng Chai <yipeng.c...@amd.com>
Reviewed-by: Tao Zhou <tao.zh...@amd.com>
---
.../gpu/drm/amd/ras/rascore/ras_nbio_v7_9.c | 123 ++++++++++++++++++
.../gpu/drm/amd/ras/rascore/ras_nbio_v7_9.h | 31 +++++
2 files changed, 154 insertions(+)
create mode 100644 drivers/gpu/drm/amd/ras/rascore/ras_nbio_v7_9.c
create mode 100644 drivers/gpu/drm/amd/ras/rascore/ras_nbio_v7_9.h
diff --git a/drivers/gpu/drm/amd/ras/rascore/ras_nbio_v7_9.c
b/drivers/gpu/drm/amd/ras/rascore/ras_nbio_v7_9.c
new file mode 100644
index 000000000000..f17d708ec668
--- /dev/null
+++ b/drivers/gpu/drm/amd/ras/rascore/ras_nbio_v7_9.c
@@ -0,0 +1,123 @@
+// SPDX-License-Identifier: MIT
+/*
+ * Copyright 2025 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.
+ *
+ */
+
+#include "ras.h"
+#include "ras_nbio_v7_9.h"
+
+#define
BIF_BX0_BIF_DOORBELL_INT_CNTL__RAS_ATHUB_ERR_EVENT_INTERRUPT_CLEAR__SHIFT
0x12
+#define
BIF_BX0_BIF_DOORBELL_INT_CNTL__RAS_ATHUB_ERR_EVENT_INTERRUPT_CLEAR_MASK
0x00040000L
+#define
BIF_BX0_BIF_DOORBELL_INT_CNTL__RAS_ATHUB_ERR_EVENT_INTERRUPT_STATUS__SHIFT
0x2
+#define
BIF_BX0_BIF_DOORBELL_INT_CNTL__RAS_ATHUB_ERR_EVENT_INTERRUPT_STATUS_MASK
0x00000004L
+#define BIF_BX0_BIF_DOORBELL_INT_CNTL__RAS_CNTLR_INTERRUPT_CLEAR__SHIFT
0x11
+#define BIF_BX0_BIF_DOORBELL_INT_CNTL__RAS_CNTLR_INTERRUPT_CLEAR_MASK
0x00020000L
+#define BIF_BX0_BIF_DOORBELL_INT_CNTL__RAS_CNTLR_INTERRUPT_STATUS__SHIFT
0x1
+#define BIF_BX0_BIF_DOORBELL_INT_CNTL__RAS_CNTLR_INTERRUPT_STATUS_MASK
0x00000002L
+
+#define regBIF_BX0_BIF_DOORBELL_INT_CNTL_BASE_IDX 2
+#define regBIF_BX0_BIF_DOORBELL_INT_CNTL 0x00fe
+
+#define regBIF_BX0_BIF_INTR_CNTL
0x0101
+#define regBIF_BX0_BIF_INTR_CNTL_BASE_IDX
2
+
+/* BIF_BX0_BIF_INTR_CNTL */
+#define BIF_BX0_BIF_INTR_CNTL__RAS_INTR_VEC_SEL__SHIFT
0x0
+#define BIF_BX0_BIF_INTR_CNTL__RAS_INTR_VEC_SEL_MASK
0x00000001L
+
+#define regBIF_BX_PF0_PARTITION_MEM_STATUS
0x0164
+#define regBIF_BX_PF0_PARTITION_MEM_STATUS_BASE_IDX
2
+/* BIF_BX_PF0_PARTITION_MEM_STATUS */
+#define BIF_BX_PF0_PARTITION_MEM_STATUS__CHANGE_STATUE__SHIFT
0x0
+#define BIF_BX_PF0_PARTITION_MEM_STATUS__NPS_MODE__SHIFT
0x4
+#define BIF_BX_PF0_PARTITION_MEM_STATUS__CHANGE_STATUE_MASK
0x0000000FL
+#define BIF_BX_PF0_PARTITION_MEM_STATUS__NPS_MODE_MASK
0x00000FF0L
+
+
+static int nbio_v7_9_handle_ras_controller_intr_no_bifring(struct
ras_core_context *ras_core)
+{
+ uint32_t bif_doorbell_intr_cntl = 0;
+
+ bif_doorbell_intr_cntl =
+ RAS_DEV_RREG32_SOC15(ras_core->dev, NBIO, 0,
regBIF_BX0_BIF_DOORBELL_INT_CNTL);
+
+ if (REG_GET_FIELD(bif_doorbell_intr_cntl,
+ BIF_BX0_BIF_DOORBELL_INT_CNTL, RAS_CNTLR_INTERRUPT_STATUS)) {
+ /* driver has to clear the interrupt status when bif ring is
disabled */
+ bif_doorbell_intr_cntl = REG_SET_FIELD(bif_doorbell_intr_cntl,
+ BIF_BX0_BIF_DOORBELL_INT_CNTL,
+ RAS_CNTLR_INTERRUPT_CLEAR, 1);
+
+ RAS_DEV_WREG32_SOC15(ras_core->dev,
+ NBIO, 0, regBIF_BX0_BIF_DOORBELL_INT_CNTL,
bif_doorbell_intr_cntl);
+
+ /* TODO: handle ras controller interrupt */
+ }
+
+ return 0;
+}
+
+static int nbio_v7_9_handle_ras_err_event_athub_intr_no_bifring(struct
ras_core_context *ras_core)
+{
+ uint32_t bif_doorbell_intr_cntl = 0;
+ int ret = 0;
+
+ bif_doorbell_intr_cntl =
+ RAS_DEV_RREG32_SOC15(ras_core->dev, NBIO, 0,
regBIF_BX0_BIF_DOORBELL_INT_CNTL);
+
+ if (REG_GET_FIELD(bif_doorbell_intr_cntl,
+ BIF_BX0_BIF_DOORBELL_INT_CNTL,
RAS_ATHUB_ERR_EVENT_INTERRUPT_STATUS)) {
+ /* driver has to clear the interrupt status when bif ring is
disabled */
+ bif_doorbell_intr_cntl = REG_SET_FIELD(bif_doorbell_intr_cntl,
+ BIF_BX0_BIF_DOORBELL_INT_CNTL,
+
RAS_ATHUB_ERR_EVENT_INTERRUPT_CLEAR, 1);
+
+ RAS_DEV_WREG32_SOC15(ras_core->dev,
+ NBIO, 0, regBIF_BX0_BIF_DOORBELL_INT_CNTL,
bif_doorbell_intr_cntl);
+
+ ret = ras_core_handle_fatal_error(ras_core);
+ }
+
+ return ret;
+}
+
+static uint32_t nbio_v7_9_get_memory_partition_mode(struct ras_core_context
*ras_core)
+{
+ uint32_t mem_status;
+ uint32_t mem_mode;
+
+ mem_status =
+ RAS_DEV_RREG32_SOC15(ras_core->dev, NBIO, 0,
regBIF_BX_PF0_PARTITION_MEM_STATUS);
+
+ /* Each bit represents a mode 1-8*/
+ mem_mode = REG_GET_FIELD(mem_status, BIF_BX_PF0_PARTITION_MEM_STATUS,
NPS_MODE);
+
+ return ffs(mem_mode);
+}
+
+const struct ras_nbio_ip_func ras_nbio_v7_9 = {
+ .handle_ras_controller_intr_no_bifring =
+ nbio_v7_9_handle_ras_controller_intr_no_bifring,
+ .handle_ras_err_event_athub_intr_no_bifring =
+ nbio_v7_9_handle_ras_err_event_athub_intr_no_bifring,
+ .get_memory_partition_mode = nbio_v7_9_get_memory_partition_mode,
+};
diff --git a/drivers/gpu/drm/amd/ras/rascore/ras_nbio_v7_9.h
b/drivers/gpu/drm/amd/ras/rascore/ras_nbio_v7_9.h
new file mode 100644
index 000000000000..8711c82a927f
--- /dev/null
+++ b/drivers/gpu/drm/amd/ras/rascore/ras_nbio_v7_9.h
@@ -0,0 +1,31 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright 2025 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 __RAS_NBIO_V7_9_H__
+#define __RAS_NBIO_V7_9_H__
+#include "ras_nbio.h"
+
+extern const struct ras_nbio_ip_func ras_nbio_v7_9;
+
+#endif
--
2.34.1
