/**
* Copyright (C) 2017 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#define _GNU_SOURCE
#include <errno.h>
#include <fcntl.h>
#include <pthread.h>
#include <sched.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <sys/ioctl.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <unistd.h>
#include "../includes/common.h"
#define THREAD_NUM 600
#define DEV "/dev/kgsl-3d0"
/* ioctls */
#define KGSL_IOC_TYPE 0x09
/* --- context flags --- */
#define KGSL_CONTEXT_SAVE_GMEM 0x00000001
#define KGSL_CONTEXT_NO_GMEM_ALLOC 0x00000002
/* This is a cmdbatch exclusive flag - use the CMDBATCH equivalent instead */
#define KGSL_CONTEXT_SUBMIT_IB_LIST 0x00000004
#define KGSL_CONTEXT_CTX_SWITCH 0x00000008
#define KGSL_CONTEXT_PREAMBLE 0x00000010
#define KGSL_CONTEXT_TRASH_STATE 0x00000020
#define KGSL_CONTEXT_PER_CONTEXT_TS 0x00000040
#define KGSL_CONTEXT_USER_GENERATED_TS 0x00000080
/* This is a cmdbatch exclusive flag - use the CMDBATCH equivalent instead */
#define KGSL_CONTEXT_END_OF_FRAME 0x00000100
#define KGSL_CONTEXT_NO_FAULT_TOLERANCE 0x00000200
/* This is a cmdbatch exclusive flag - use the CMDBATCH equivalent instead */
#define KGSL_CONTEXT_SYNC 0x00000400
#define KGSL_CONTEXT_PWR_CONSTRAINT 0x00000800
#define KGSL_CONTEXT_PRIORITY_MASK 0x0000F000
#define KGSL_CONTEXT_PRIORITY_SHIFT 12
#define KGSL_CONTEXT_PRIORITY_UNDEF 0
#define KGSL_CONTEXT_IFH_NOP 0x00010000
#define KGSL_CONTEXT_SECURE 0x00020000
#define KGSL_CONTEXT_TYPE_MASK 0x01F00000
#define KGSL_CONTEXT_TYPE_SHIFT 20
#define KGSL_CONTEXT_TYPE_ANY 0
#define KGSL_CONTEXT_TYPE_GL 1
#define KGSL_CONTEXT_TYPE_CL 2
#define KGSL_CONTEXT_TYPE_C2D 3
#define KGSL_CONTEXT_TYPE_RS 4
#define KGSL_CONTEXT_TYPE_UNKNOWN 0x1E
#define KGSL_CONTEXT_INVALID 0xffffffff
/*
* --- command batch flags ---
* The bits that are linked to a KGSL_CONTEXT equivalent are either legacy
* definitions or bits that are valid for both contexts and cmdbatches. To be
* safe the other 8 bits that are still available in the context field should be
* omitted here in case we need to share - the other bits are available for
* cmdbatch only flags as needed
*/
#define KGSL_CMDBATCH_MEMLIST 0x00000001
#define KGSL_CMDBATCH_MARKER 0x00000002
#define KGSL_CMDBATCH_SUBMIT_IB_LIST KGSL_CONTEXT_SUBMIT_IB_LIST /* 0x004 */
#define KGSL_CMDBATCH_CTX_SWITCH KGSL_CONTEXT_CTX_SWITCH /* 0x008 */
#define KGSL_CMDBATCH_PROFILING 0x00000010
#define KGSL_CMDBATCH_END_OF_FRAME KGSL_CONTEXT_END_OF_FRAME /* 0x100 */
#define KGSL_CMDBATCH_SYNC KGSL_CONTEXT_SYNC /* 0x400 */
#define KGSL_CMDBATCH_PWR_CONSTRAINT KGSL_CONTEXT_PWR_CONSTRAINT /* 0x800 */
/* create a draw context, which is used to preserve GPU state.
* The flags field may contain a mask KGSL_CONTEXT_* values
*/
struct kgsl_drawctxt_create {
unsigned int flags;
unsigned int drawctxt_id; /*output param */
};
#define IOCTL_KGSL_DRAWCTXT_CREATE \
_IOWR(KGSL_IOC_TYPE, 0x13, struct kgsl_drawctxt_create)
/* destroy a draw context */
struct kgsl_drawctxt_destroy {
unsigned int drawctxt_id;
};
#define IOCTL_KGSL_DRAWCTXT_DESTROY \
_IOW(KGSL_IOC_TYPE, 0x14, struct kgsl_drawctxt_destroy)
void* child_ioctl_0(void* no_use);
void* child_ioctl_1(void* no_use);
void* child_ioctl_2(void* no_use);
int fd;
unsigned int kgsl_id;
pthread_t thread_id[THREAD_NUM + 1] = {0};
int thread_ret[THREAD_NUM] = {0};
static int set_affinity(int num) {
int ret = 0;
cpu_set_t mask;
CPU_ZERO(&mask);
CPU_SET(num, &mask);
ret = sched_setaffinity(0, sizeof(cpu_set_t), &mask);
return ret;
}
void* child_ioctl_0(void* no_use) {
int ret = 1;
time_t test_started = start_timer();
struct kgsl_drawctxt_destroy kdd = {0};
kdd.drawctxt_id = kgsl_id;
set_affinity(1);
while (timer_active(test_started)) {
ret = ioctl(fd, IOCTL_KGSL_DRAWCTXT_DESTROY, &kdd);
}
return NULL;
}
void* child_ioctl_1(void* no_use) {
int ret = 1;
time_t test_started = start_timer();
struct kgsl_drawctxt_destroy kdd = {0};
kdd.drawctxt_id = kgsl_id;
set_affinity(2);
while (timer_active(test_started)) {
ret = ioctl(fd, IOCTL_KGSL_DRAWCTXT_DESTROY, &kdd);
}
return NULL;
}
void* child_ioctl_2(void* no_use) {
int ret = 1;
time_t test_started = start_timer();
struct kgsl_drawctxt_create kdc = {0, 0};
kdc.flags = KGSL_CONTEXT_PREAMBLE | KGSL_CONTEXT_NO_GMEM_ALLOC;
set_affinity(3);
while (timer_active(test_started)) {
ret = ioctl(fd, IOCTL_KGSL_DRAWCTXT_CREATE, &kdc);
kgsl_id = kdc.drawctxt_id;
}
return NULL;
}
int main() {
int i, ret;
time_t test_started = start_timer();
struct kgsl_drawctxt_create kdc = {0, 0};
kdc.flags = KGSL_CONTEXT_PREAMBLE | KGSL_CONTEXT_NO_GMEM_ALLOC;
struct kgsl_drawctxt_destroy kdd = {0};
/* bind_cpu */
set_affinity(0);
/* open dev */
fd = open(DEV, O_RDWR);
if (fd == -1) {
return 0;
}
/* create thread */
for (i = 0; i < 150; i = i + 3) {
thread_ret[i] = pthread_create(thread_id + i, NULL, child_ioctl_0, NULL);
thread_ret[i + 1] =
pthread_create(thread_id + i + 1, NULL, child_ioctl_1, NULL);
thread_ret[i + 2] =
pthread_create(thread_id + i + 2, NULL, child_ioctl_2, NULL);
}
while (timer_active(test_started)) {
ret = ioctl(fd, IOCTL_KGSL_DRAWCTXT_CREATE, &kdc);
kgsl_id = kdc.drawctxt_id;
}
close(fd);
return 0;
}