Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 29a5d3eb authored by Andrew Lewycky's avatar Andrew Lewycky Committed by Oded Gabbay
Browse files

drm/amdkfd: add events IOCTL set definitions 



- AMDKFD_IOC_CREATE_EVENT:
	Creates a new event of a specified type

- AMDKFD_IOC_DESTROY_EVENT:
	Destroys an existing event

- AMDKFD_IOC_SET_EVENT:
	Signal an existing event

- AMDKFD_IOC_RESET_EVENT:
	Reset an existing event

- AMDKFD_IOC_WAIT_EVENTS:
	Wait on event(s) until they are signaled

v2:

- Move the limit of the signal events to kfd_ioctl.h so it
  can be used by userspace

v3:
- Change all bool fields in struct kfd_memory_exception_failure
to uint32_t

Signed-off-by: default avatarAndrew Lewycky <Andrew.Lewycky@amd.com>
Signed-off-by: default avatarOded Gabbay <oded.gabbay@gmail.com>
parent 2249d558

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

+45 −0
Original line number Diff line number Diff line
@@ -514,6 +514,36 @@ static int kfd_ioctl_get_process_apertures(struct file *filp, 
	return 0;

}



static int kfd_ioctl_create_event(struct file *filp, struct kfd_process *p,

					void *data)

{

	return -ENODEV;

}



static int kfd_ioctl_destroy_event(struct file *filp, struct kfd_process *p,

					void *data)

{

	return -ENODEV;

}



static int kfd_ioctl_set_event(struct file *filp, struct kfd_process *p,

				void *data)

{

	return -ENODEV;

}



static int kfd_ioctl_reset_event(struct file *filp, struct kfd_process *p,

				void *data)

{

	return -ENODEV;

}



static int kfd_ioctl_wait_events(struct file *filp, struct kfd_process *p,

				void *data)

{

	return -ENODEV;

}



#define AMDKFD_IOCTL_DEF(ioctl, _func, _flags) \

	[_IOC_NR(ioctl)] = {.cmd = ioctl, .func = _func, .flags = _flags, .cmd_drv = 0, .name = #ioctl}
@@ -539,6 +569,21 @@ static const struct amdkfd_ioctl_desc amdkfd_ioctls[] = { 


	AMDKFD_IOCTL_DEF(AMDKFD_IOC_UPDATE_QUEUE,

			kfd_ioctl_update_queue, 0),



	AMDKFD_IOCTL_DEF(AMDKFD_IOC_CREATE_EVENT,

			kfd_ioctl_create_event, 0),



	AMDKFD_IOCTL_DEF(AMDKFD_IOC_DESTROY_EVENT,

			kfd_ioctl_destroy_event, 0),



	AMDKFD_IOCTL_DEF(AMDKFD_IOC_SET_EVENT,

			kfd_ioctl_set_event, 0),



	AMDKFD_IOCTL_DEF(AMDKFD_IOC_RESET_EVENT,

			kfd_ioctl_reset_event, 0),



	AMDKFD_IOCTL_DEF(AMDKFD_IOC_WAIT_EVENTS,

			kfd_ioctl_wait_events, 0),

};



#define AMDKFD_CORE_IOCTL_COUNT	ARRAY_SIZE(amdkfd_ioctls)

include/uapi/linux/kfd_ioctl.h

+94 −2
Original line number Diff line number Diff line
@@ -27,7 +27,7 @@ 
#include <linux/ioctl.h>



#define KFD_IOCTL_MAJOR_VERSION 1

#define KFD_IOCTL_MINOR_VERSION 0

#define KFD_IOCTL_MINOR_VERSION 1



struct kfd_ioctl_get_version_args {

	uint32_t major_version;	/* from KFD */
@@ -128,6 +128,83 @@ struct kfd_ioctl_get_process_apertures_args { 
	uint32_t pad;

};



/* Matching HSA_EVENTTYPE */

#define KFD_IOC_EVENT_SIGNAL			0

#define KFD_IOC_EVENT_NODECHANGE		1

#define KFD_IOC_EVENT_DEVICESTATECHANGE		2

#define KFD_IOC_EVENT_HW_EXCEPTION		3

#define KFD_IOC_EVENT_SYSTEM_EVENT		4

#define KFD_IOC_EVENT_DEBUG_EVENT		5

#define KFD_IOC_EVENT_PROFILE_EVENT		6

#define KFD_IOC_EVENT_QUEUE_EVENT		7

#define KFD_IOC_EVENT_MEMORY			8



#define KFD_IOC_WAIT_RESULT_COMPLETE		0

#define KFD_IOC_WAIT_RESULT_TIMEOUT		1

#define KFD_IOC_WAIT_RESULT_FAIL		2



#define KFD_SIGNAL_EVENT_LIMIT			256



struct kfd_ioctl_create_event_args {

	uint64_t event_page_offset;	/* from KFD */

	uint32_t event_trigger_data;	/* from KFD - signal events only */

	uint32_t event_type;		/* to KFD */

	uint32_t auto_reset;		/* to KFD */

	uint32_t node_id;		/* to KFD - only valid for certain

							event types */

	uint32_t event_id;		/* from KFD */

	uint32_t event_slot_index;	/* from KFD */

};



struct kfd_ioctl_destroy_event_args {

	uint32_t event_id;		/* to KFD */

	uint32_t pad;

};



struct kfd_ioctl_set_event_args {

	uint32_t event_id;		/* to KFD */

	uint32_t pad;

};



struct kfd_ioctl_reset_event_args {

	uint32_t event_id;		/* to KFD */

	uint32_t pad;

};



struct kfd_memory_exception_failure {

	uint32_t NotPresent;	/* Page not present or supervisor privilege */

	uint32_t ReadOnly;	/* Write access to a read-only page */

	uint32_t NoExecute;	/* Execute access to a page marked NX */

	uint32_t pad;

};



/* memory exception data*/

struct kfd_hsa_memory_exception_data {

	struct kfd_memory_exception_failure failure;

	uint64_t va;

	uint32_t gpu_id;

	uint32_t pad;

};



/* Event data*/

struct kfd_event_data {

	union {

		struct kfd_hsa_memory_exception_data memory_exception_data;

	};				/* From KFD */

	uint64_t kfd_event_data_ext;	/* pointer to an extension structure

					   for future exception types */

	uint32_t event_id;		/* to KFD */

	uint32_t pad;

};



struct kfd_ioctl_wait_events_args {

	uint64_t events_ptr;		/* to KFD */

	uint32_t num_events;		/* to KFD */

	uint32_t wait_for_all;		/* to KFD */

	uint32_t timeout;		/* to KFD */

	uint32_t wait_result;		/* from KFD */

};



#define AMDKFD_IOCTL_BASE 'K'

#define AMDKFD_IO(nr)			_IO(AMDKFD_IOCTL_BASE, nr)

#define AMDKFD_IOR(nr, type)		_IOR(AMDKFD_IOCTL_BASE, nr, type)
@@ -155,7 +232,22 @@ struct kfd_ioctl_get_process_apertures_args { 
#define AMDKFD_IOC_UPDATE_QUEUE			\

		AMDKFD_IOW(0x07, struct kfd_ioctl_update_queue_args)



#define AMDKFD_IOC_CREATE_EVENT			\

		AMDKFD_IOWR(0x08, struct kfd_ioctl_create_event_args)



#define AMDKFD_IOC_DESTROY_EVENT		\

		AMDKFD_IOW(0x09, struct kfd_ioctl_destroy_event_args)



#define AMDKFD_IOC_SET_EVENT			\

		AMDKFD_IOW(0x0A, struct kfd_ioctl_set_event_args)



#define AMDKFD_IOC_RESET_EVENT			\

		AMDKFD_IOW(0x0B, struct kfd_ioctl_reset_event_args)



#define AMDKFD_IOC_WAIT_EVENTS			\

		AMDKFD_IOWR(0x0C, struct kfd_ioctl_wait_events_args)



#define AMDKFD_COMMAND_START		0x01

#define AMDKFD_COMMAND_END		0x08

#define AMDKFD_COMMAND_END		0x0D



#endif