drm/amd/ras: Add nbio common ras functions

Add nbio common ras functions.

Signed-off-by: YiPeng Chai <YiPeng.Chai@amd.com>
Reviewed-by: Tao Zhou <tao.zhou1@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/ras/rascore/ras_nbio.c b/drivers/gpu/drm/amd/ras/rascore/ras_nbio.c
new file mode 100644 (file)
index 0000000..8bf1f35
--- /dev/null
+++ b/drivers/gpu/drm/amd/ras/rascore/ras_nbio.c
@@ -0,0 +1,95 @@
+// 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.h"
+#include "ras_nbio_v7_9.h"
+
+static const struct ras_nbio_ip_func *ras_nbio_get_ip_funcs(
+                               struct ras_core_context *ras_core, uint32_t ip_version)
+{
+       switch (ip_version) {
+       case IP_VERSION(7, 9, 0):
+               return &ras_nbio_v7_9;
+       default:
+               RAS_DEV_ERR(ras_core->dev,
+                       "NBIO ip version(0x%x) is not supported!\n", ip_version);
+               break;
+       }
+
+       return NULL;
+}
+
+int ras_nbio_hw_init(struct ras_core_context *ras_core)
+{
+       struct ras_nbio *nbio = &ras_core->ras_nbio;
+
+       nbio->nbio_ip_version = ras_core->config->nbio_ip_version;
+       nbio->sys_func = ras_core->config->nbio_cfg.nbio_sys_fn;
+       if (!nbio->sys_func) {
+               RAS_DEV_ERR(ras_core->dev, "RAS nbio sys function not configured!\n");
+               return -EINVAL;
+       }
+
+       nbio->ip_func = ras_nbio_get_ip_funcs(ras_core, nbio->nbio_ip_version);
+       if (!nbio->ip_func)
+               return -EINVAL;
+
+       if (nbio->sys_func) {
+               if (nbio->sys_func->set_ras_controller_irq_state)
+                       nbio->sys_func->set_ras_controller_irq_state(ras_core, true);
+               if (nbio->sys_func->set_ras_err_event_athub_irq_state)
+                       nbio->sys_func->set_ras_err_event_athub_irq_state(ras_core, true);
+       }
+
+       return 0;
+}
+
+int ras_nbio_hw_fini(struct ras_core_context *ras_core)
+{
+       struct ras_nbio *nbio = &ras_core->ras_nbio;
+
+       if (nbio->sys_func) {
+               if (nbio->sys_func->set_ras_controller_irq_state)
+                       nbio->sys_func->set_ras_controller_irq_state(ras_core, false);
+               if (nbio->sys_func->set_ras_err_event_athub_irq_state)
+                       nbio->sys_func->set_ras_err_event_athub_irq_state(ras_core, false);
+       }
+
+       return 0;
+}
+
+bool ras_nbio_handle_irq_error(struct ras_core_context *ras_core, void *data)
+{
+       struct ras_nbio *nbio = &ras_core->ras_nbio;
+
+       if (nbio->ip_func) {
+               if (nbio->ip_func->handle_ras_controller_intr_no_bifring)
+                       nbio->ip_func->handle_ras_controller_intr_no_bifring(ras_core);
+               if (nbio->ip_func->handle_ras_err_event_athub_intr_no_bifring)
+                       nbio->ip_func->handle_ras_err_event_athub_intr_no_bifring(ras_core);
+       }
+
+       return true;
+}

diff --git a/drivers/gpu/drm/amd/ras/rascore/ras_nbio.h b/drivers/gpu/drm/amd/ras/rascore/ras_nbio.h
new file mode 100644 (file)
index 0000000..0a1313e
--- /dev/null
+++ b/drivers/gpu/drm/amd/ras/rascore/ras_nbio.h
@@ -0,0 +1,46 @@
+/* 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_H__
+#define __RAS_NBIO_H__
+#include "ras.h"
+
+struct ras_core_context;
+
+struct ras_nbio_ip_func {
+       int (*handle_ras_controller_intr_no_bifring)(struct ras_core_context *ras_core);
+       int (*handle_ras_err_event_athub_intr_no_bifring)(struct ras_core_context *ras_core);
+       uint32_t (*get_memory_partition_mode)(struct ras_core_context *ras_core);
+};
+
+struct ras_nbio {
+       uint32_t nbio_ip_version;
+       const struct ras_nbio_ip_func *ip_func;
+       const struct ras_nbio_sys_func *sys_func;
+};
+
+int ras_nbio_hw_init(struct ras_core_context *ras_core);
+int ras_nbio_hw_fini(struct ras_core_context *ras_core);
+bool ras_nbio_handle_irq_error(struct ras_core_context *ras_core, void *data);
+#endif