Commit 94a2ceb1 authored by Michal Wajdeczko's avatar Michal Wajdeczko
Browse files

drm/xe: Promote relaxed_ms_sleep 



We want to have single place with sleep related helpers for better
code reuse. Create xe_sleep.h and move relaxed_ms_sleep() there.

Signed-off-by: default avatarMichal Wajdeczko <michal.wajdeczko@intel.com>
Reviewed-by: default avatarMatthew Brost <matthew.brost@intel.com>
Link: https://patch.msgid.link/20260127193727.601-2-michal.wajdeczko@intel.com
parent 316b05ae

drivers/gpu/drm/xe/xe_guc_submit.c

+2 −21
Original line number Diff line number Diff line
@@ -8,9 +8,7 @@ 
#include <linux/bitfield.h>

#include <linux/bitmap.h>

#include <linux/circ_buf.h>

#include <linux/delay.h>

#include <linux/dma-fence-array.h>

#include <linux/math64.h>



#include <drm/drm_managed.h>
@@ -42,6 +40,7 @@ 
#include "xe_pm.h"

#include "xe_ring_ops_types.h"

#include "xe_sched_job.h"

#include "xe_sleep.h"

#include "xe_trace.h"

#include "xe_uc_fw.h"

#include "xe_vm.h"
@@ -1032,24 +1031,6 @@ static u32 wq_space_until_wrap(struct xe_exec_queue *q) 
	return (WQ_SIZE - q->guc->wqi_tail);

}



static inline void relaxed_ms_sleep(unsigned int delay_ms)

{

	unsigned long min_us, max_us;



	if (!delay_ms)

		return;



	if (delay_ms > 20) {

		msleep(delay_ms);

		return;

	}



	min_us = mul_u32_u32(delay_ms, 1000);

	max_us = min_us + 500;



	usleep_range(min_us, max_us);

}



static int wq_wait_for_space(struct xe_exec_queue *q, u32 wqi_size)

{

	struct xe_guc *guc = exec_queue_to_guc(q);
@@ -1834,7 +1815,7 @@ static void __guc_exec_queue_process_msg_suspend(struct xe_sched_msg *msg) 
				since_resume_ms;



			if (wait_ms > 0 && q->guc->resume_time)

				relaxed_ms_sleep(wait_ms);

				xe_sleep_relaxed_ms(wait_ms);



			set_exec_queue_suspended(q);

			disable_scheduling(q, false);

drivers/gpu/drm/xe/xe_sleep.h

0 → 100644
+36 −0
Original line number Diff line number Diff line 
/* SPDX-License-Identifier: MIT */

/*

 * Copyright © 2026 Intel Corporation

 */



#ifndef _XE_SLEEP_H_

#define _XE_SLEEP_H_



#include <linux/delay.h>

#include <linux/math64.h>



/**

 * xe_sleep_relaxed_ms() - Sleep for an approximate time.

 * @delay_ms: time in msec to sleep

 *

 * For smaller timeouts, sleep with 0.5ms accuracy.

 */

static inline void xe_sleep_relaxed_ms(unsigned int delay_ms)

{

	unsigned long min_us, max_us;



	if (!delay_ms)

		return;



	if (delay_ms > 20) {

		msleep(delay_ms);

		return;

	}



	min_us = mul_u32_u32(delay_ms, 1000);

	max_us = min_us + 500;



	usleep_range(min_us, max_us);

}



#endif