Commit ca750681 authored by Felix Kuehling's avatar Felix Kuehling Committed by Oded Gabbay
Browse files

drm/amdkfd: Add SOC15 interrupt processing support 



Signed-off-by: default avatarShaoyun Liu <Shaoyun.Liu@amd.com>
Signed-off-by: default avatarOak Zeng <Oak.Zeng@amd.com>
Signed-off-by: default avatarFelix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: default avatarOded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: default avatarOded Gabbay <oded.gabbay@gmail.com>
parent bed4f110

drivers/gpu/drm/amd/amdkfd/Makefile

+1 −1
Original line number Diff line number Diff line
@@ -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

drivers/gpu/drm/amd/amdkfd/kfd_int_process_v9.c

0 → 100644
+84 −0
Original line number Diff line number Diff line 
/*

 * 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,

};

drivers/gpu/drm/amd/amdkfd/kfd_priv.h

+2 −0
Original line number Diff line number Diff line
@@ -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);

drivers/gpu/drm/amd/amdkfd/soc15_int.h

0 → 100644
+47 −0
Original line number Diff line number Diff line 
/*

 * 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