[PATCH 13/21] drm/amdkfd: Add SOC15 interrupt processing support
Felix Kuehling
Felix.Kuehling at amd.com
Tue Apr 10 21:33:10 UTC 2018
Signed-off-by: Shaoyun Liu <Shaoyun.Liu at amd.com>
Signed-off-by: Oak Zeng <Oak.Zeng at amd.com>
Signed-off-by: Felix Kuehling <Felix.Kuehling at amd.com>
---
drivers/gpu/drm/amd/amdkfd/Makefile | 2 +-
drivers/gpu/drm/amd/amdkfd/kfd_int_process_v9.c | 84 +++++++++++++++++++++++++
drivers/gpu/drm/amd/amdkfd/kfd_priv.h | 2 +
drivers/gpu/drm/amd/amdkfd/soc15_int.h | 47 ++++++++++++++
4 files changed, 134 insertions(+), 1 deletion(-)
create mode 100644 drivers/gpu/drm/amd/amdkfd/kfd_int_process_v9.c
create mode 100644 drivers/gpu/drm/amd/amdkfd/soc15_int.h
diff --git a/drivers/gpu/drm/amd/amdkfd/Makefile b/drivers/gpu/drm/amd/amdkfd/Makefile
index ff8b5aa..ffd096f 100644
--- a/drivers/gpu/drm/amd/amdkfd/Makefile
+++ b/drivers/gpu/drm/amd/amdkfd/Makefile
@@ -37,7 +37,7 @@ amdkfd-y := kfd_module.o kfd_device.o kfd_chardev.o kfd_topology.o \
kfd_device_queue_manager.o kfd_device_queue_manager_cik.o \
kfd_device_queue_manager_vi.o kfd_device_queue_manager_v9.o \
kfd_interrupt.o kfd_events.o cik_event_interrupt.o \
- kfd_dbgdev.o kfd_dbgmgr.o kfd_crat.o
+ kfd_int_process_v9.o kfd_dbgdev.o kfd_dbgmgr.o kfd_crat.o
ifneq ($(CONFIG_AMD_IOMMU_V2),)
amdkfd-y += kfd_iommu.o
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_int_process_v9.c b/drivers/gpu/drm/amd/amdkfd/kfd_int_process_v9.c
new file mode 100644
index 0000000..39d4115
--- /dev/null
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_int_process_v9.c
@@ -0,0 +1,84 @@
+/*
+ * Copyright 2016-2018 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 "kfd_priv.h"
+#include "kfd_events.h"
+#include "soc15_int.h"
+
+
+static bool event_interrupt_isr_v9(struct kfd_dev *dev,
+ const uint32_t *ih_ring_entry)
+{
+ uint16_t source_id, client_id, pasid, vmid;
+
+ source_id = SOC15_SOURCE_ID_FROM_IH_ENTRY(ih_ring_entry);
+ client_id = SOC15_CLIENT_ID_FROM_IH_ENTRY(ih_ring_entry);
+ pasid = SOC15_PASID_FROM_IH_ENTRY(ih_ring_entry);
+ vmid = SOC15_VMID_FROM_IH_ENTRY(ih_ring_entry);
+
+ if (pasid) {
+ const uint32_t *data = ih_ring_entry;
+
+ pr_debug("client id 0x%x, source id %d, pasid 0x%x. raw data:\n",
+ client_id, source_id, pasid);
+ pr_debug("%8X, %8X, %8X, %8X, %8X, %8X, %8X, %8X.\n",
+ data[0], data[1], data[2], data[3],
+ data[4], data[5], data[6], data[7]);
+ }
+
+ return (pasid != 0) &&
+ (source_id == SOC15_INTSRC_CP_END_OF_PIPE ||
+ source_id == SOC15_INTSRC_SDMA_TRAP ||
+ source_id == SOC15_INTSRC_SQ_INTERRUPT_MSG ||
+ source_id == SOC15_INTSRC_CP_BAD_OPCODE);
+}
+
+static void event_interrupt_wq_v9(struct kfd_dev *dev,
+ const uint32_t *ih_ring_entry)
+{
+ uint16_t source_id, client_id, pasid, vmid;
+ uint32_t context_id;
+
+ source_id = SOC15_SOURCE_ID_FROM_IH_ENTRY(ih_ring_entry);
+ client_id = SOC15_CLIENT_ID_FROM_IH_ENTRY(ih_ring_entry);
+ pasid = SOC15_PASID_FROM_IH_ENTRY(ih_ring_entry);
+ vmid = SOC15_VMID_FROM_IH_ENTRY(ih_ring_entry);
+ context_id = SOC15_CONTEXT_ID0_FROM_IH_ENTRY(ih_ring_entry);
+
+ if (source_id == SOC15_INTSRC_CP_END_OF_PIPE)
+ kfd_signal_event_interrupt(pasid, context_id, 32);
+ else if (source_id == SOC15_INTSRC_SDMA_TRAP)
+ kfd_signal_event_interrupt(pasid, context_id & 0xfffffff, 28);
+ else if (source_id == SOC15_INTSRC_SQ_INTERRUPT_MSG)
+ kfd_signal_event_interrupt(pasid, context_id & 0xffffff, 24);
+ else if (source_id == SOC15_INTSRC_CP_BAD_OPCODE)
+ kfd_signal_hw_exception_event(pasid);
+ else if (client_id == SOC15_IH_CLIENTID_VMC ||
+ client_id == SOC15_IH_CLIENTID_UTCL2) {
+ /* TODO */
+ }
+}
+
+const struct kfd_event_interrupt_class event_interrupt_class_v9 = {
+ .interrupt_isr = event_interrupt_isr_v9,
+ .interrupt_wq = event_interrupt_wq_v9,
+};
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_priv.h b/drivers/gpu/drm/amd/amdkfd/kfd_priv.h
index d5cdb5d..06b210b 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_priv.h
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_priv.h
@@ -934,6 +934,8 @@ uint64_t kfd_get_number_elems(struct kfd_dev *kfd);
/* Events */
extern const struct kfd_event_interrupt_class event_interrupt_class_cik;
+extern const struct kfd_event_interrupt_class event_interrupt_class_v9;
+
extern const struct kfd_device_global_init_class device_global_init_class_cik;
void kfd_event_init_process(struct kfd_process *p);
diff --git a/drivers/gpu/drm/amd/amdkfd/soc15_int.h b/drivers/gpu/drm/amd/amdkfd/soc15_int.h
new file mode 100644
index 0000000..0bc0b25
--- /dev/null
+++ b/drivers/gpu/drm/amd/amdkfd/soc15_int.h
@@ -0,0 +1,47 @@
+/*
+ * Copyright 2016-2018 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 HSA_SOC15_INT_H_INCLUDED
+#define HSA_SOC15_INT_H_INCLUDED
+
+#include "soc15_ih_clientid.h"
+
+#define SOC15_INTSRC_CP_END_OF_PIPE 181
+#define SOC15_INTSRC_CP_BAD_OPCODE 183
+#define SOC15_INTSRC_SQ_INTERRUPT_MSG 239
+#define SOC15_INTSRC_VMC_FAULT 0
+#define SOC15_INTSRC_SDMA_TRAP 224
+
+
+#define SOC15_CLIENT_ID_FROM_IH_ENTRY(entry) (le32_to_cpu(entry[0]) & 0xff)
+#define SOC15_SOURCE_ID_FROM_IH_ENTRY(entry) (le32_to_cpu(entry[0]) >> 8 & 0xff)
+#define SOC15_RING_ID_FROM_IH_ENTRY(entry) (le32_to_cpu(entry[0]) >> 16 & 0xff)
+#define SOC15_VMID_FROM_IH_ENTRY(entry) (le32_to_cpu(entry[0]) >> 24 & 0xf)
+#define SOC15_VMID_TYPE_FROM_IH_ENTRY(entry) (le32_to_cpu(entry[0]) >> 31 & 0x1)
+#define SOC15_PASID_FROM_IH_ENTRY(entry) (le32_to_cpu(entry[3]) & 0xffff)
+#define SOC15_CONTEXT_ID0_FROM_IH_ENTRY(entry) (le32_to_cpu(entry[4]))
+#define SOC15_CONTEXT_ID1_FROM_IH_ENTRY(entry) (le32_to_cpu(entry[5]))
+#define SOC15_CONTEXT_ID2_FROM_IH_ENTRY(entry) (le32_to_cpu(entry[6]))
+#define SOC15_CONTEXT_ID3_FROM_IH_ENTRY(entry) (le32_to_cpu(entry[7]))
+
+#endif
+
--
2.7.4
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