[PATCH i-g-t v3 04/14] lib/xe_eudebug: Introduce eu debug testing framework
Manszewski, Christoph
christoph.manszewski at intel.com
Tue Aug 20 16:14:07 UTC 2024
Hi Zbigniew,
On 20.08.2024 10:14, Zbigniew Kempczyński wrote:
> On Fri, Aug 09, 2024 at 02:38:03PM +0200, Christoph Manszewski wrote:
>> From: Dominik Grzegorzek <dominik.grzegorzek at intel.com>
>>
>> Introduce library which simplifies testing of eu debug capability.
>> The library provides event log helpers together with asynchronous
>> abstraction for client proccess and the debugger itself.
>>
>> xe_eudebug_client creates its own proccess with user's work function,
>> and gives machanisms to synchronize beginning of execution and event
>> logging.
>>
>> xe_eudebug_debugger allows to attach to the given proccess, provides
>> asynchronous thread for event reading and introduces triggers -
>> a callback mechanism triggered every time subscribed event was read.
>>
>> Signed-off-by: Dominik Grzegorzek <dominik.grzegorzek at intel.com>
>> Signed-off-by: Mika Kuoppala <mika.kuaoppala at linux.intel.com>
>> Signed-off-by: Christoph Manszewski <christoph.manszewski at intel.com>
>> Signed-off-by: Maciej Patelczyk <maciej.patelczyk at intel.com>
>> Signed-off-by: Pawel Sikora <pawel.sikora at intel.com>
>> Signed-off-by: Karolina Stolarek <karolina.stolarek at intel.com>
>> ---
>> lib/meson.build | 1 +
>> lib/xe/xe_eudebug.c | 2192 +++++++++++++++++++++++++++++++++++++++++++
>> lib/xe/xe_eudebug.h | 206 ++++
>> 3 files changed, 2399 insertions(+)
>> create mode 100644 lib/xe/xe_eudebug.c
>> create mode 100644 lib/xe/xe_eudebug.h
>>
>> diff --git a/lib/meson.build b/lib/meson.build
>> index f711e60a7..969ca4101 100644
>> --- a/lib/meson.build
>> +++ b/lib/meson.build
>> @@ -111,6 +111,7 @@ lib_sources = [
>> 'igt_msm.c',
>> 'igt_dsc.c',
>> 'xe/xe_gt.c',
>> + 'xe/xe_eudebug.c',
>> 'xe/xe_ioctl.c',
>> 'xe/xe_mmio.c',
>> 'xe/xe_query.c',
>
> As eudebug is quite big feature I think it should be separated and
> hidden behind a feature flag (check meson_options.txt), lets say
> 'xe_eudebug' which would be disabled by default. This way you can
> develop it upstream even if kernel side is not officially merged.
> I'm pragramatic and I see no reason to block not accepted feature
> especially this would imo speed up developement. A final step when
> kernel change would be accepted and merged would be to sync with
> uapi and remove local definitions.
>
> I look forward maintainers comments is my attitude acceptable.
I agree that it is a good idea. The only problem that arises is for
'xe_exec_sip'. We add a dependency on eudebug to this test - any ideas
how to approach this correctly? The only thing that comes to my mind is
conditional compilation with 'ifdef' statements but it doesn't appear to
be pretty.
Thanks,
Christoph
>
> --
> Zbigniew
>
>
>> diff --git a/lib/xe/xe_eudebug.c b/lib/xe/xe_eudebug.c
>> new file mode 100644
>> index 000000000..4eac87476
>> --- /dev/null
>> +++ b/lib/xe/xe_eudebug.c
>> @@ -0,0 +1,2192 @@
>> +// SPDX-License-Identifier: MIT
>> +/*
>> + * Copyright © 2023 Intel Corporation
>> + */
>> +
>> +#include <fcntl.h>
>> +#include <poll.h>
>> +#include <signal.h>
>> +#include <sys/select.h>
>> +#include <sys/stat.h>
>> +#include <sys/types.h>
>> +#include <sys/wait.h>
>> +
>> +#include "igt.h"
>> +#include "igt_sysfs.h"
>> +#include "intel_pat.h"
>> +#include "xe_eudebug.h"
>> +#include "xe_ioctl.h"
>> +
>> +struct event_trigger {
>> + xe_eudebug_trigger_fn fn;
>> + int type;
>> + struct igt_list_head link;
>> +};
>> +
>> +struct seqno_list_entry {
>> + struct igt_list_head link;
>> + uint64_t seqno;
>> +};
>> +
>> +struct match_dto {
>> + struct drm_xe_eudebug_event *target;
>> + struct igt_list_head *seqno_list;
>> + uint64_t client_handle;
>> + uint32_t filter;
>> +
>> + /* store latest 'EVENT_VM_BIND' seqno */
>> + uint64_t *bind_seqno;
>> + /* latest vm_bind_op seqno matching bind_seqno */
>> + uint64_t *bind_op_seqno;
>> +};
>> +
>> +#define CLIENT_PID 1
>> +#define CLIENT_RUN 2
>> +#define CLIENT_FINI 3
>> +#define CLIENT_STOP 4
>> +#define CLIENT_STAGE 5
>> +#define DEBUGGER_STAGE 6
>> +
>> +#define DEBUGGER_WORKER_INACTIVE 0
>> +#define DEBUGGER_WORKER_ACTIVE 1
>> +#define DEBUGGER_WORKER_QUITTING 2
>> +
>> +static const char *type_to_str(unsigned int type)
>> +{
>> + switch (type) {
>> + case DRM_XE_EUDEBUG_EVENT_NONE:
>> + return "none";
>> + case DRM_XE_EUDEBUG_EVENT_READ:
>> + return "read";
>> + case DRM_XE_EUDEBUG_EVENT_OPEN:
>> + return "client";
>> + case DRM_XE_EUDEBUG_EVENT_VM:
>> + return "vm";
>> + case DRM_XE_EUDEBUG_EVENT_EXEC_QUEUE:
>> + return "exec_queue";
>> + case DRM_XE_EUDEBUG_EVENT_EU_ATTENTION:
>> + return "attention";
>> + case DRM_XE_EUDEBUG_EVENT_VM_BIND:
>> + return "vm_bind";
>> + case DRM_XE_EUDEBUG_EVENT_VM_BIND_OP:
>> + return "vm_bind_op";
>> + case DRM_XE_EUDEBUG_EVENT_VM_BIND_UFENCE:
>> + return "vm_bind_ufence";
>> + case DRM_XE_EUDEBUG_EVENT_METADATA:
>> + return "metadata";
>> + case DRM_XE_EUDEBUG_EVENT_VM_BIND_OP_METADATA:
>> + return "vm_bind_op_metadata";
>> + }
>> +
>> + return "UNKNOWN";
>> +}
>> +
>> +static const char *event_type_to_str(struct drm_xe_eudebug_event *e, char *buf)
>> +{
>> + sprintf(buf, "%s(%d)", type_to_str(e->type), e->type);
>> +
>> + return buf;
>> +}
>> +
>> +static const char *flags_to_str(unsigned int flags)
>> +{
>> + if (flags & DRM_XE_EUDEBUG_EVENT_CREATE) {
>> + if (flags & DRM_XE_EUDEBUG_EVENT_NEED_ACK)
>> + return "create|ack";
>> + else
>> + return "create";
>> + }
>> + if (flags & DRM_XE_EUDEBUG_EVENT_DESTROY)
>> + return "destroy";
>> +
>> + if (flags & DRM_XE_EUDEBUG_EVENT_STATE_CHANGE)
>> + return "state-change";
>> +
>> + igt_assert(!(flags & DRM_XE_EUDEBUG_EVENT_NEED_ACK));
>> +
>> + return "flags unknown";
>> +}
>> +
>> +static const char *event_members_to_str(struct drm_xe_eudebug_event *e, char *b)
>> +{
>> + switch (e->type) {
>> + case DRM_XE_EUDEBUG_EVENT_OPEN: {
>> + struct drm_xe_eudebug_event_client *ec = (struct drm_xe_eudebug_event_client *)e;
>> +
>> + sprintf(b, "handle=%llu", ec->client_handle);
>> + break;
>> + }
>> + case DRM_XE_EUDEBUG_EVENT_VM: {
>> + struct drm_xe_eudebug_event_vm *evm = (struct drm_xe_eudebug_event_vm *)e;
>> +
>> + sprintf(b, "client_handle=%llu, handle=%llu",
>> + evm->client_handle, evm->vm_handle);
>> + break;
>> + }
>> + case DRM_XE_EUDEBUG_EVENT_EXEC_QUEUE: {
>> + struct drm_xe_eudebug_event_exec_queue *ee = (void *)e;
>> +
>> + sprintf(b, "client_handle=%llu, vm_handle=%llu, "
>> + "exec_queue_handle=%llu, engine_class=%d, exec_queue_width=%d",
>> + ee->client_handle, ee->vm_handle,
>> + ee->exec_queue_handle, ee->engine_class, ee->width);
>> + break;
>> + }
>> + case DRM_XE_EUDEBUG_EVENT_EU_ATTENTION: {
>> + struct drm_xe_eudebug_event_eu_attention *ea = (void *)e;
>> +
>> + sprintf(b, "client_handle=%llu, exec_queue_handle=%llu, "
>> + "lrc_handle=%llu, bitmask_size=%d",
>> + ea->client_handle, ea->exec_queue_handle,
>> + ea->lrc_handle, ea->bitmask_size);
>> + break;
>> + }
>> + case DRM_XE_EUDEBUG_EVENT_VM_BIND: {
>> + struct drm_xe_eudebug_event_vm_bind *evmb = (void *)e;
>> +
>> + sprintf(b, "client_handle=%llu, vm_handle=%llu, flags=0x%x, num_binds=%u",
>> + evmb->client_handle, evmb->vm_handle, evmb->flags, evmb->num_binds);
>> + break;
>> + }
>> + case DRM_XE_EUDEBUG_EVENT_VM_BIND_OP: {
>> + struct drm_xe_eudebug_event_vm_bind_op *op = (void *)e;
>> +
>> + sprintf(b, "vm_bind_ref_seqno=%lld, addr=%016llx, range=%llu num_extensions=%llu",
>> + op->vm_bind_ref_seqno, op->addr, op->range, op->num_extensions);
>> + break;
>> + }
>> + case DRM_XE_EUDEBUG_EVENT_VM_BIND_UFENCE: {
>> + struct drm_xe_eudebug_event_vm_bind_ufence *f = (void *)e;
>> +
>> + sprintf(b, "vm_bind_ref_seqno=%lld", f->vm_bind_ref_seqno);
>> + break;
>> + }
>> + case DRM_XE_EUDEBUG_EVENT_METADATA: {
>> + struct drm_xe_eudebug_event_metadata *em = (void *)e;
>> +
>> + sprintf(b, "client_handle=%llu, metadata_handle=%llu, type=%llu, len=%llu",
>> + em->client_handle, em->metadata_handle, em->type, em->len);
>> + break;
>> + }
>> + case DRM_XE_EUDEBUG_EVENT_VM_BIND_OP_METADATA: {
>> + struct drm_xe_eudebug_event_vm_bind_op_metadata *op = (void *)e;
>> +
>> + sprintf(b, "vm_bind_op_ref_seqno=%lld, metadata_handle=%llu, metadata_cookie=%llu",
>> + op->vm_bind_op_ref_seqno, op->metadata_handle, op->metadata_cookie);
>> + break;
>> + }
>> + default:
>> + strcpy(b, "<...>");
>> + }
>> +
>> + return b;
>> +}
>> +
>> +/**
>> + * xe_eudebug_event_to_str:
>> + * @e: pointer to event
>> + * @buf: target to write string representation of @e
>> + * @len: size of target buffer @buf
>> + *
>> + * Creates string representation for given event.
>> + *
>> + * Returns: the written input buffer pointed by @buf.
>> + */
>> +const char *xe_eudebug_event_to_str(struct drm_xe_eudebug_event *e, char *buf, size_t len)
>> +{
>> + char a[256];
>> + char b[256];
>> +
>> + snprintf(buf, len, "(%llu) %15s:%s: %s",
>> + e->seqno,
>> + event_type_to_str(e, a),
>> + flags_to_str(e->flags),
>> + event_members_to_str(e, b));
>> +
>> + return buf;
>> +}
>> +
>> +static void catch_child_failure(void)
>> +{
>> + pid_t pid;
>> + int status;
>> +
>> + pid = waitpid(-1, &status, WNOHANG);
>> +
>> + if (pid == 0 || pid == -1)
>> + return;
>> +
>> + if (!WIFEXITED(status))
>> + return;
>> +
>> + igt_assert_f(WEXITSTATUS(status) == 0, "Client failed!\n");
>> +}
>> +
>> +static int safe_pipe_read(int pipe[2], void *buf, int nbytes, int timeout_ms)
>> +{
>> + int ret;
>> + int t = 0;
>> + struct pollfd fd = {
>> + .fd = pipe[0],
>> + .events = POLLIN,
>> + .revents = 0
>> + };
>> +
>> + /* When child fails we may get stuck forever. Check whether
>> + * the child process ended with an error.
>> + */
>> + do {
>> + const int interval_ms = 1000;
>> +
>> + ret = poll(&fd, 1, interval_ms);
>> +
>> + if (!ret) {
>> + catch_child_failure();
>> + t += interval_ms;
>> + }
>> + } while (!ret && t < timeout_ms);
>> +
>> + if (ret > 0)
>> + return read(pipe[0], buf, nbytes);
>> +
>> + return 0;
>> +}
>> +
>> +static uint64_t pipe_read(int pipe[2], int timeout_ms)
>> +{
>> + uint64_t in;
>> + uint64_t ret;
>> +
>> + ret = safe_pipe_read(pipe, &in, sizeof(in), timeout_ms);
>> + igt_assert(ret == sizeof(in));
>> +
>> + return in;
>> +}
>> +
>> +static void pipe_signal(int pipe[2], uint64_t token)
>> +{
>> + igt_assert(write(pipe[1], &token, sizeof(token)) == sizeof(token));
>> +}
>> +
>> +static void pipe_close(int pipe[2])
>> +{
>> + if (pipe[0] != -1)
>> + close(pipe[0]);
>> +
>> + if (pipe[1] != -1)
>> + close(pipe[1]);
>> +}
>> +
>> +static uint64_t __wait_token(int p[2], const uint64_t token, int timeout_ms)
>> +{
>> + uint64_t in;
>> +
>> + in = pipe_read(p, timeout_ms);
>> +
>> + igt_assert_eq(in, token);
>> +
>> + return pipe_read(p, timeout_ms);
>> +}
>> +
>> +static uint64_t client_wait_token(struct xe_eudebug_client *c,
>> + const uint64_t token)
>> +{
>> + return __wait_token(c->p_in, token, c->timeout_ms);
>> +}
>> +
>> +static uint64_t wait_from_client(struct xe_eudebug_client *c,
>> + const uint64_t token)
>> +{
>> + return __wait_token(c->p_out, token, c->timeout_ms);
>> +}
>> +
>> +static void token_signal(int p[2], const uint64_t token, const uint64_t value)
>> +{
>> + pipe_signal(p, token);
>> + pipe_signal(p, value);
>> +}
>> +
>> +static void client_signal(struct xe_eudebug_client *c,
>> + const uint64_t token,
>> + const uint64_t value)
>> +{
>> + token_signal(c->p_out, token, value);
>> +}
>> +
>> +static int __xe_eudebug_connect(int fd, pid_t pid, uint32_t flags, uint64_t events)
>> +{
>> + struct drm_xe_eudebug_connect param = {
>> + .pid = pid,
>> + .flags = flags,
>> + };
>> + int debugfd;
>> +
>> + debugfd = igt_ioctl(fd, DRM_IOCTL_XE_EUDEBUG_CONNECT, ¶m);
>> +
>> + if (debugfd < 0)
>> + return -errno;
>> +
>> + return debugfd;
>> +}
>> +
>> +static void event_log_write_to_fd(struct xe_eudebug_event_log *l, int fd)
>> +{
>> + igt_assert_eq(write(fd, &l->head, sizeof(l->head)),
>> + sizeof(l->head));
>> +
>> + igt_assert_eq(write(fd, l->log, l->head), l->head);
>> +}
>> +
>> +static void read_all(int fd, void *buf, size_t nbytes)
>> +{
>> + ssize_t remaining_size = nbytes;
>> + ssize_t current_size = 0;
>> + ssize_t read_size = 0;
>> +
>> + do {
>> + read_size = read(fd, buf + current_size, remaining_size);
>> + igt_assert_f(read_size >= 0, "read failed: %s\n", strerror(errno));
>> +
>> + current_size += read_size;
>> + remaining_size -= read_size;
>> + } while (remaining_size > 0 && read_size > 0);
>> +
>> + igt_assert_eq(current_size, nbytes);
>> +}
>> +
>> +static void event_log_read_from_fd(struct xe_eudebug_event_log *l, int fd)
>> +{
>> + read_all(fd, &l->head, sizeof(l->head));
>> + igt_assert_lt(l->head, l->max_size);
>> +
>> + read_all(fd, l->log, l->head);
>> +}
>> +
>> +typedef int (*cmp_fn_t)(struct drm_xe_eudebug_event *, void *);
>> +
>> +static struct drm_xe_eudebug_event *
>> +event_cmp(struct xe_eudebug_event_log *l,
>> + struct drm_xe_eudebug_event *current,
>> + cmp_fn_t match,
>> + void *data)
>> +{
>> + struct drm_xe_eudebug_event *e = current;
>> +
>> + xe_eudebug_for_each_event(e, l) {
>> + if (match(e, data))
>> + return e;
>> + }
>> +
>> + return NULL;
>> +}
>> +
>> +static int match_type_and_flags(struct drm_xe_eudebug_event *a, void *data)
>> +{
>> + struct drm_xe_eudebug_event *b = data;
>> +
>> + if (a->type == b->type &&
>> + a->flags == b->flags)
>> + return 1;
>> +
>> + return 0;
>> +}
>> +
>> +static int match_fields(struct drm_xe_eudebug_event *a, void *data)
>> +{
>> + struct drm_xe_eudebug_event *b = data;
>> + int ret = 0;
>> +
>> + ret = match_type_and_flags(a, data);
>> + if (!ret)
>> + return ret;
>> +
>> + ret = 0;
>> +
>> + switch (a->type) {
>> + case DRM_XE_EUDEBUG_EVENT_EXEC_QUEUE: {
>> + struct drm_xe_eudebug_event_exec_queue *ae = (void *)a;
>> + struct drm_xe_eudebug_event_exec_queue *be = (void *)b;
>> +
>> + if (ae->engine_class == be->engine_class && ae->width == be->width)
>> + ret = 1;
>> + break;
>> + }
>> + case DRM_XE_EUDEBUG_EVENT_VM_BIND: {
>> + struct drm_xe_eudebug_event_vm_bind *ea = (void *)a;
>> + struct drm_xe_eudebug_event_vm_bind *eb = (void *)b;
>> +
>> + if (ea->num_binds == eb->num_binds)
>> + ret = 1;
>> + break;
>> + }
>> + case DRM_XE_EUDEBUG_EVENT_VM_BIND_OP: {
>> + struct drm_xe_eudebug_event_vm_bind_op *ea = (void *)a;
>> + struct drm_xe_eudebug_event_vm_bind_op *eb = (void *)b;
>> +
>> + if (ea->addr == eb->addr && ea->range == eb->range &&
>> + ea->num_extensions == eb->num_extensions)
>> + ret = 1;
>> + break;
>> + }
>> + case DRM_XE_EUDEBUG_EVENT_VM_BIND_OP_METADATA: {
>> + struct drm_xe_eudebug_event_vm_bind_op_metadata *ea = (void *)a;
>> + struct drm_xe_eudebug_event_vm_bind_op_metadata *eb = (void *)b;
>> +
>> + if (ea->metadata_handle == eb->metadata_handle &&
>> + ea->metadata_cookie == eb->metadata_cookie)
>> + ret = 1;
>> + break;
>> + }
>> +
>> + default:
>> + ret = 1;
>> + break;
>> + }
>> +
>> + return ret;
>> +}
>> +
>> +static int match_client_handle(struct drm_xe_eudebug_event *e, void *data)
>> +{
>> + struct match_dto *md = (void *)data;
>> + uint64_t *bind_seqno = md->bind_seqno;
>> + uint64_t *bind_op_seqno = md->bind_op_seqno;
>> + uint64_t h = md->client_handle;
>> +
>> + if (XE_EUDEBUG_EVENT_IS_FILTERED(e->type, md->filter))
>> + return 0;
>> +
>> + switch (e->type) {
>> + case DRM_XE_EUDEBUG_EVENT_OPEN: {
>> + struct drm_xe_eudebug_event_client *client = (struct drm_xe_eudebug_event_client *)e;
>> +
>> + if (client->client_handle == h)
>> + return 1;
>> + break;
>> + }
>> + case DRM_XE_EUDEBUG_EVENT_VM: {
>> + struct drm_xe_eudebug_event_vm *vm = (struct drm_xe_eudebug_event_vm *)e;
>> +
>> + if (vm->client_handle == h)
>> + return 1;
>> + break;
>> + }
>> + case DRM_XE_EUDEBUG_EVENT_EXEC_QUEUE: {
>> + struct drm_xe_eudebug_event_exec_queue *ee = (struct drm_xe_eudebug_event_exec_queue *)e;
>> +
>> + if (ee->client_handle == h)
>> + return 1;
>> + break;
>> + }
>> + case DRM_XE_EUDEBUG_EVENT_VM_BIND: {
>> + struct drm_xe_eudebug_event_vm_bind *evmb = (struct drm_xe_eudebug_event_vm_bind *)e;
>> +
>> + if (evmb->client_handle == h) {
>> + *bind_seqno = evmb->base.seqno;
>> + return 1;
>> + }
>> + break;
>> + }
>> + case DRM_XE_EUDEBUG_EVENT_VM_BIND_OP: {
>> + struct drm_xe_eudebug_event_vm_bind_op *eo = (struct drm_xe_eudebug_event_vm_bind_op *)e;
>> +
>> + if (eo->vm_bind_ref_seqno == *bind_seqno) {
>> + *bind_op_seqno = eo->base.seqno;
>> + return 1;
>> + }
>> + break;
>> + }
>> + case DRM_XE_EUDEBUG_EVENT_VM_BIND_UFENCE: {
>> + struct drm_xe_eudebug_event_vm_bind_ufence *ef = (struct drm_xe_eudebug_event_vm_bind_ufence *)e;
>> +
>> + if (ef->vm_bind_ref_seqno == *bind_seqno)
>> + return 1;
>> +
>> + break;
>> + }
>> + case DRM_XE_EUDEBUG_EVENT_METADATA: {
>> + struct drm_xe_eudebug_event_metadata *em = (struct drm_xe_eudebug_event_metadata *)e;
>> +
>> + if (em->client_handle == h)
>> + return 1;
>> + break;
>> + }
>> + case DRM_XE_EUDEBUG_EVENT_VM_BIND_OP_METADATA: {
>> + struct drm_xe_eudebug_event_vm_bind_op_metadata *eo = (struct drm_xe_eudebug_event_vm_bind_op_metadata *)e;
>> +
>> + if (eo->vm_bind_op_ref_seqno == *bind_op_seqno)
>> + return 1;
>> + break;
>> + }
>> + default:
>> + break;
>> + }
>> +
>> + return 0;
>> +}
>> +
>> +static int match_opposite_resource(struct drm_xe_eudebug_event *e, void *data)
>> +{
>> +
>> + struct drm_xe_eudebug_event *d = (void *)data;
>> + int ret;
>> +
>> + d->flags ^= DRM_XE_EUDEBUG_EVENT_CREATE | DRM_XE_EUDEBUG_EVENT_DESTROY;
>> + d->flags &= ~(DRM_XE_EUDEBUG_EVENT_NEED_ACK);
>> + ret = match_type_and_flags(e, data);
>> + d->flags ^= DRM_XE_EUDEBUG_EVENT_CREATE | DRM_XE_EUDEBUG_EVENT_DESTROY;
>> +
>> + if (!ret)
>> + return 0;
>> +
>> + switch (e->type) {
>> + case DRM_XE_EUDEBUG_EVENT_OPEN: {
>> + struct drm_xe_eudebug_event_client *client = (struct drm_xe_eudebug_event_client *)e;
>> + struct drm_xe_eudebug_event_client *filter = (struct drm_xe_eudebug_event_client *)data;
>> +
>> + if (client->client_handle == filter->client_handle)
>> + return 1;
>> + break;
>> + }
>> + case DRM_XE_EUDEBUG_EVENT_VM: {
>> + struct drm_xe_eudebug_event_vm *vm = (struct drm_xe_eudebug_event_vm *)e;
>> + struct drm_xe_eudebug_event_vm *filter = (struct drm_xe_eudebug_event_vm *)data;
>> +
>> + if (vm->vm_handle == filter->vm_handle)
>> + return 1;
>> + break;
>> + }
>> + case DRM_XE_EUDEBUG_EVENT_EXEC_QUEUE: {
>> + struct drm_xe_eudebug_event_exec_queue *ee = (void *)e;
>> + struct drm_xe_eudebug_event_exec_queue *filter = (struct drm_xe_eudebug_event_exec_queue *)data;
>> +
>> + if (ee->exec_queue_handle == filter->exec_queue_handle)
>> + return 1;
>> + break;
>> + }
>> + case DRM_XE_EUDEBUG_EVENT_VM_BIND: {
>> + struct drm_xe_eudebug_event_vm_bind *evmb = (void *)e;
>> + struct drm_xe_eudebug_event_vm_bind *filter = (struct drm_xe_eudebug_event_vm_bind *)data;
>> +
>> + if (evmb->vm_handle == filter->vm_handle &&
>> + evmb->num_binds == filter->num_binds)
>> + return 1;
>> + break;
>> + }
>> + case DRM_XE_EUDEBUG_EVENT_VM_BIND_OP: {
>> + struct drm_xe_eudebug_event_vm_bind_op *avmb = (void *)e;
>> + struct drm_xe_eudebug_event_vm_bind_op *filter = (struct drm_xe_eudebug_event_vm_bind_op *)data;
>> +
>> + if (avmb->addr == filter->addr &&
>> + avmb->range == filter->range)
>> + return 1;
>> + break;
>> + }
>> + case DRM_XE_EUDEBUG_EVENT_METADATA: {
>> + struct drm_xe_eudebug_event_metadata *em = (void *)e;
>> + struct drm_xe_eudebug_event_metadata *filter = (struct drm_xe_eudebug_event_metadata *)data;
>> +
>> + if (em->metadata_handle == filter->metadata_handle)
>> + return 1;
>> + break;
>> + }
>> + case DRM_XE_EUDEBUG_EVENT_VM_BIND_OP_METADATA: {
>> + struct drm_xe_eudebug_event_vm_bind_op_metadata *avmb = (void *)e;
>> + struct drm_xe_eudebug_event_vm_bind_op_metadata *filter = (struct drm_xe_eudebug_event_vm_bind_op_metadata *)data;
>> +
>> + if (avmb->metadata_handle == filter->metadata_handle &&
>> + avmb->metadata_cookie == filter->metadata_cookie)
>> + return 1;
>> + break;
>> + }
>> +
>> + default:
>> + break;
>> + }
>> + return 0;
>> +}
>> +
>> +static int match_full(struct drm_xe_eudebug_event *e, void *data)
>> +{
>> + struct seqno_list_entry *sl;
>> +
>> + struct match_dto *md = (void *)data;
>> + int ret = 0;
>> +
>> + ret = match_client_handle(e, md);
>> + if (!ret)
>> + return 0;
>> +
>> + ret = match_fields(e, md->target);
>> + if (!ret)
>> + return 0;
>> +
>> + igt_list_for_each_entry(sl, md->seqno_list, link) {
>> + if (sl->seqno == e->seqno)
>> + return 0;
>> + }
>> +
>> + return 1;
>> +}
>> +
>> +static struct drm_xe_eudebug_event *
>> +event_type_match(struct xe_eudebug_event_log *l,
>> + struct drm_xe_eudebug_event *target,
>> + struct drm_xe_eudebug_event *current)
>> +{
>> + return event_cmp(l, current, match_type_and_flags, target);
>> +}
>> +
>> +static struct drm_xe_eudebug_event *
>> +client_match(struct xe_eudebug_event_log *l,
>> + uint64_t client_handle,
>> + struct drm_xe_eudebug_event *current,
>> + uint32_t filter,
>> + uint64_t *bind_seqno,
>> + uint64_t *bind_op_seqno)
>> +{
>> + struct match_dto md = {
>> + .client_handle = client_handle,
>> + .filter = filter,
>> + .bind_seqno = bind_seqno,
>> + .bind_op_seqno = bind_op_seqno,
>> + };
>> +
>> + return event_cmp(l, current, match_client_handle, &md);
>> +}
>> +
>> +static struct drm_xe_eudebug_event *
>> +opposite_event_match(struct xe_eudebug_event_log *l,
>> + struct drm_xe_eudebug_event *target,
>> + struct drm_xe_eudebug_event *current)
>> +{
>> + return event_cmp(l, current, match_opposite_resource, target);
>> +}
>> +
>> +static struct drm_xe_eudebug_event *
>> +event_match(struct xe_eudebug_event_log *l,
>> + struct drm_xe_eudebug_event *target,
>> + uint64_t client_handle,
>> + struct igt_list_head *seqno_list,
>> + uint64_t *bind_seqno,
>> + uint64_t *bind_op_seqno)
>> +{
>> + struct match_dto md = {
>> + .target = target,
>> + .client_handle = client_handle,
>> + .seqno_list = seqno_list,
>> + .bind_seqno = bind_seqno,
>> + .bind_op_seqno = bind_op_seqno,
>> + };
>> +
>> + return event_cmp(l, NULL, match_full, &md);
>> +}
>> +
>> +static void compare_client(struct xe_eudebug_event_log *c, struct drm_xe_eudebug_event *_ce,
>> + struct xe_eudebug_event_log *d, struct drm_xe_eudebug_event *_de,
>> + uint32_t filter)
>> +{
>> + struct drm_xe_eudebug_event_client *ce = (void *)_ce;
>> + struct drm_xe_eudebug_event_client *de = (void *)_de;
>> + uint64_t cbs = 0, dbs = 0, cbso = 0, dbso = 0;
>> +
>> + struct igt_list_head matched_seqno_list;
>> + struct drm_xe_eudebug_event *hc, *hd;
>> + struct seqno_list_entry *entry, *tmp;
>> +
>> + igt_assert(ce);
>> + igt_assert(de);
>> +
>> + igt_debug("client: %llu -> %llu\n", ce->client_handle, de->client_handle);
>> +
>> + hc = NULL;
>> + hd = NULL;
>> + IGT_INIT_LIST_HEAD(&matched_seqno_list);
>> +
>> + do {
>> + hc = client_match(c, ce->client_handle, hc, filter, &cbs, &cbso);
>> + if (!hc)
>> + break;
>> +
>> + hd = event_match(d, hc, de->client_handle, &matched_seqno_list, &dbs, &dbso);
>> +
>> + igt_assert_f(hd, "%s (%llu): no matching event type %u found for client %llu\n",
>> + c->name,
>> + hc->seqno,
>> + hc->type,
>> + ce->client_handle);
>> +
>> + igt_debug("comparing %s %llu vs %s %llu\n",
>> + c->name, hc->seqno, d->name, hd->seqno);
>> +
>> + /*
>> + * Store the seqno of the event that was matched above,
>> + * inside 'matched_seqno_list', to avoid it getting matched
>> + * by subsequent 'event_match' calls.
>> + */
>> + entry = malloc(sizeof(*entry));
>> + entry->seqno = hd->seqno;
>> + igt_list_add(&entry->link, &matched_seqno_list);
>> + } while (hc);
>> +
>> + igt_list_for_each_entry_safe(entry, tmp, &matched_seqno_list, link)
>> + free(entry);
>> +}
>> +
>> +/**
>> + * xe_eudebug_event_log_find_seqno:
>> + * @l: event log pointer
>> + * @seqno: seqno of event to be found
>> + *
>> + * Finds the event with given seqno in the event log.
>> + *
>> + * Returns: pointer to the event with given seqno within @l or NULL seqno is
>> + * not present.
>> + */
>> +struct drm_xe_eudebug_event *
>> +xe_eudebug_event_log_find_seqno(struct xe_eudebug_event_log *l, uint64_t seqno)
>> +{
>> + struct drm_xe_eudebug_event *e = NULL, *found = NULL;
>> +
>> + igt_assert_neq(seqno, 0);
>> + /*
>> + * Try to catch if seqno is corrupted and prevent too long tests,
>> + * as our post processing of events is not optimized.
>> + */
>> + igt_assert_lt(seqno, 10 * 1000 * 1000);
>> +
>> + xe_eudebug_for_each_event(e, l) {
>> + if (e->seqno == seqno) {
>> + if (found) {
>> + igt_warn("Found multiple events with the same seqno %lu\n", seqno);
>> + xe_eudebug_event_log_print(l, false);
>> + igt_assert(!found);
>> + }
>> + found = e;
>> + }
>> + }
>> +
>> + return found;
>> +}
>> +
>> +static void event_log_sort(struct xe_eudebug_event_log *l)
>> +{
>> + struct xe_eudebug_event_log *tmp;
>> + struct drm_xe_eudebug_event *e = NULL;
>> + uint64_t first_seqno = 0;
>> + uint64_t last_seqno = 0;
>> + uint64_t events = 0, added = 0;
>> + uint64_t i;
>> +
>> + xe_eudebug_for_each_event(e, l) {
>> + if (e->seqno > last_seqno)
>> + last_seqno = e->seqno;
>> +
>> + if (e->seqno < first_seqno)
>> + first_seqno = e->seqno;
>> +
>> + events++;
>> + }
>> +
>> + tmp = xe_eudebug_event_log_create("tmp", l->max_size);
>> +
>> + for (i = 1; i <= last_seqno; i++) {
>> + e = xe_eudebug_event_log_find_seqno(l, i);
>> + if (e) {
>> + xe_eudebug_event_log_write(tmp, e);
>> + added++;
>> + }
>> + }
>> +
>> + igt_assert_eq(events, added);
>> + igt_assert_eq(tmp->head, l->head);
>> +
>> + memcpy(l->log, tmp->log, tmp->head);
>> +
>> + xe_eudebug_event_log_destroy(tmp);
>> +}
>> +
>> +/**
>> + * xe_eudebug_connect:
>> + * @fd: Xe file descriptor
>> + * @pid: client PID
>> + * @flags: connection flags
>> + *
>> + * Opens the xe eu debugger connection to the process described by @pid
>> + *
>> + * Returns: 0 if the debugger was successfully attached, -errno otherwise.
>> + */
>> +int xe_eudebug_connect(int fd, pid_t pid, uint32_t flags)
>> +{
>> + int ret;
>> + uint64_t events = 0; /* events filtering not supported yet! */
>> +
>> + ret = __xe_eudebug_connect(fd, pid, flags, events);
>> +
>> + return ret;
>> +}
>> +
>> +/**
>> + * xe_eudebug_event_log_create:
>> + * @name: event log identifier
>> + * @max_size: maximum size of created log
>> + *
>> + * Function creates an Eu Debugger event log with size equal to @max_size.
>> + *
>> + * Returns: pointer to just created log
>> + */
>> +#define MAX_EVENT_LOG_SIZE (32 * 1024 * 1024)
>> +struct xe_eudebug_event_log *xe_eudebug_event_log_create(const char *name, unsigned int max_size)
>> +{
>> + struct xe_eudebug_event_log *l;
>> +
>> + l = calloc(1, sizeof(*l));
>> + igt_assert(l);
>> + l->log = calloc(1, max_size);
>> + igt_assert(l->log);
>> + l->max_size = max_size;
>> + strncpy(l->name, name, sizeof(l->name) - 1);
>> + pthread_mutex_init(&l->lock, NULL);
>> +
>> + return l;
>> +}
>> +
>> +/**
>> + * xe_eudebug_event_log_destroy:
>> + * @l: event log pointer
>> + *
>> + * Frees given event log @l.
>> + */
>> +void xe_eudebug_event_log_destroy(struct xe_eudebug_event_log *l)
>> +{
>> + pthread_mutex_destroy(&l->lock);
>> + free(l->log);
>> + free(l);
>> +}
>> +
>> +/**
>> + * xe_eudebug_event_log_write:
>> + * @l: event log pointer
>> + * @e: event to be written to event log
>> + *
>> + * Writes event @e to the event log, thread-safe.
>> + */
>> +void xe_eudebug_event_log_write(struct xe_eudebug_event_log *l, struct drm_xe_eudebug_event *e)
>> +{
>> + igt_assert(e->seqno);
>> + /*
>> + * Try to catch if seqno is corrupted and prevent too long tests,
>> + * as our post processing of events is not optimized.
>> + */
>> + igt_assert_lt(e->seqno, 10 * 1000 * 1000);
>> +
>> + pthread_mutex_lock(&l->lock);
>> + igt_assert_lt(l->head + e->len, l->max_size);
>> + memcpy(l->log + l->head, e, e->len);
>> + l->head += e->len;
>> +
>> +#ifdef DEBUG_LOG
>> + igt_info("%s: wrote %u bytes to eventlog, free %u bytes\n",
>> + l->name, e->len, l->max_size - l->head);
>> +#endif
>> + pthread_mutex_unlock(&l->lock);
>> +}
>> +
>> +/**
>> + * xe_eudebug_event_log_print:
>> + * @l: event log pointer
>> + * @debug: when true function uses igt_debug instead of igt_info.
>> + *
>> + * Prints given event log.
>> + */
>> +void
>> +xe_eudebug_event_log_print(struct xe_eudebug_event_log *l, bool debug)
>> +{
>> + struct drm_xe_eudebug_event *e = NULL;
>> + int level = debug ? IGT_LOG_DEBUG : IGT_LOG_INFO;
>> + char str[XE_EUDEBUG_EVENT_STRING_MAX_LEN];
>> +
>> + igt_log(IGT_LOG_DOMAIN, level,
>> + "event log '%s' (%u bytes):\n", l->name, l->head);
>> +
>> + xe_eudebug_for_each_event(e, l) {
>> + xe_eudebug_event_to_str(e, str, XE_EUDEBUG_EVENT_STRING_MAX_LEN);
>> + igt_log(IGT_LOG_DOMAIN, level, "%s\n", str);
>> + }
>> +}
>> +
>> +/**
>> + * xe_eudebug_event_log_compare:
>> + * @a: event log pointer
>> + * @b: event log pointer
>> + * @filter: mask that represents events to be skipped during comparison, useful
>> + * for events like 'VM_BIND' since they can be asymmetric. Note that
>> + * 'DRM_XE_EUDEBUG_EVENT_OPEN' will always be matched.
>> + *
>> + * Compares and asserts event logs @a, @b if the event
>> + * sequence matches.
>> + */
>> +void xe_eudebug_event_log_compare(struct xe_eudebug_event_log *a, struct xe_eudebug_event_log *b,
>> + uint32_t filter)
>> +{
>> + struct drm_xe_eudebug_event *ae = NULL;
>> + struct drm_xe_eudebug_event *be = NULL;
>> +
>> + xe_eudebug_for_each_event(ae, a) {
>> + if (ae->type == DRM_XE_EUDEBUG_EVENT_OPEN &&
>> + ae->flags & DRM_XE_EUDEBUG_EVENT_CREATE) {
>> + be = event_type_match(b, ae, be);
>> +
>> + compare_client(a, ae, b, be, filter);
>> + compare_client(b, be, a, ae, filter);
>> + }
>> + }
>> +}
>> +
>> +/**
>> + * xe_eudebug_event_log_match_opposite:
>> + * @l: event log pointer
>> + * @filter: mask that represents events to be skipped during comparison, useful
>> + * for events like 'VM_BIND' since they can be asymmetric
>> + *
>> + * Matches and asserts content of all opposite events (create vs destroy).
>> + */
>> +void
>> +xe_eudebug_event_log_match_opposite(struct xe_eudebug_event_log *l, uint32_t filter)
>> +{
>> + struct drm_xe_eudebug_event *ce = NULL;
>> + struct drm_xe_eudebug_event *de = NULL;
>> +
>> + xe_eudebug_for_each_event(ce, l) {
>> + if (ce->flags & DRM_XE_EUDEBUG_EVENT_CREATE) {
>> + uint8_t offset = sizeof(struct drm_xe_eudebug_event);
>> + int opposite_matching;
>> +
>> + if (XE_EUDEBUG_EVENT_IS_FILTERED(ce->type, filter))
>> + continue;
>> +
>> + /* No opposite matching for binds */
>> + if ((ce->type >= DRM_XE_EUDEBUG_EVENT_VM_BIND &&
>> + ce->type <= DRM_XE_EUDEBUG_EVENT_VM_BIND_UFENCE) ||
>> + ce->type == DRM_XE_EUDEBUG_EVENT_VM_BIND_OP_METADATA)
>> + continue;
>> +
>> + de = opposite_event_match(l, ce, ce);
>> +
>> + igt_assert_f(de, "no opposite event of type %u found\n", ce->type);
>> +
>> + igt_assert_eq(ce->len, de->len);
>> + opposite_matching = memcmp((uint8_t *)de + offset,
>> + (uint8_t *)ce + offset,
>> + de->len - offset) == 0;
>> +
>> + igt_assert_f(opposite_matching,
>> + "%s: create|destroy event not "
>> + "maching (%llu) vs (%llu)\n",
>> + l->name, de->seqno, ce->seqno);
>> + }
>> + }
>> +}
>> +
>> +static void debugger_run_triggers(struct xe_eudebug_debugger *d,
>> + struct drm_xe_eudebug_event *e)
>> +{
>> + struct event_trigger *t;
>> +
>> + igt_list_for_each_entry(t, &d->triggers, link) {
>> + if (e->type == t->type)
>> + t->fn(d, e);
>> + }
>> +}
>> +
>> +#define MAX_EVENT_SIZE (32 * 1024)
>> +static int
>> +xe_eudebug_read_event(int fd, struct drm_xe_eudebug_event *event)
>> +{
>> + int ret;
>> +
>> + event->type = DRM_XE_EUDEBUG_EVENT_READ;
>> + event->flags = 0;
>> + event->len = MAX_EVENT_SIZE;
>> +
>> + ret = igt_ioctl(fd, DRM_XE_EUDEBUG_IOCTL_READ_EVENT, event);
>> + if (ret < 0)
>> + return -errno;
>> +
>> + return ret;
>> +}
>> +
>> +static void *debugger_worker_loop(void *data)
>> +{
>> + uint8_t buf[MAX_EVENT_SIZE];
>> + struct drm_xe_eudebug_event *e = (void *)buf;
>> + struct xe_eudebug_debugger *d = data;
>> + struct pollfd p = {
>> + .events = POLLIN,
>> + .revents = 0,
>> + };
>> + int timeout_ms = 100, ret;
>> +
>> + igt_assert(d->master_fd >= 0);
>> +
>> + do {
>> + p.fd = d->fd;
>> + ret = poll(&p, 1, timeout_ms);
>> +
>> + if (ret == -1) {
>> + igt_info("poll failed with errno %d\n", errno);
>> + break;
>> + }
>> +
>> + if (ret == 1 && (p.revents & POLLIN)) {
>> + int err = xe_eudebug_read_event(d->fd, e);
>> +
>> + if (!err) {
>> + ++d->event_count;
>> +
>> + xe_eudebug_event_log_write(d->log, e);
>> + debugger_run_triggers(d, e);
>> + } else {
>> + igt_info("xe_eudebug_read_event returned %d\n", ret);
>> + }
>> + }
>> + } while ((ret && READ_ONCE(d->worker_state) == DEBUGGER_WORKER_QUITTING) ||
>> + READ_ONCE(d->worker_state) == DEBUGGER_WORKER_ACTIVE);
>> +
>> + d->worker_state = DEBUGGER_WORKER_INACTIVE;
>> + return NULL;
>> +}
>> +
>> +/**
>> + * xe_eudebug_debugger_available:
>> + * @fd: Xe file descriptor
>> + *
>> + * Returns: true it debugger connection is available, false otherwise.
>> + */
>> +bool xe_eudebug_debugger_available(int fd)
>> +{
>> + struct drm_xe_eudebug_connect param = { .pid = getpid() };
>> + int debugfd;
>> +
>> + debugfd = igt_ioctl(fd, DRM_IOCTL_XE_EUDEBUG_CONNECT, ¶m);
>> + if (debugfd >= 0)
>> + close(debugfd);
>> +
>> + return debugfd >= 0;
>> +}
>> +
>> +/**
>> + * xe_eudebug_debugger_create:
>> + * @master_fd: xe client used to open the debugger connection
>> + * @flags: flags stored in a debugger structure, can be used at will
>> + * of the caller, i.e. to be used inside triggers.
>> + * @data: test's private data, allocated with MAP_SHARED | MAP_ANONYMOUS,
>> + * can be shared between client and debugger. Can be NULL.
>> + *
>> + * Returns: newly created xe_eudebug_debugger structure with its
>> + * event log initialized. Note that to open the connection
>> + * you need call @xe_eudebug_debugger_attach.
>> + */
>> +struct xe_eudebug_debugger *
>> +xe_eudebug_debugger_create(int master_fd, uint64_t flags, void *data)
>> +{
>> + struct xe_eudebug_debugger *d;
>> +
>> + d = calloc(1, sizeof(*d));
>> + d->flags = flags;
>> + igt_assert(d);
>> + IGT_INIT_LIST_HEAD(&d->triggers);
>> + d->log = xe_eudebug_event_log_create("debugger", MAX_EVENT_LOG_SIZE);
>> + d->fd = -1;
>> + d->master_fd = master_fd;
>> + d->ptr = data;
>> +
>> + return d;
>> +}
>> +
>> +static void debugger_destroy_triggers(struct xe_eudebug_debugger *d)
>> +{
>> + struct event_trigger *t, *tmp;
>> +
>> + igt_list_for_each_entry_safe(t, tmp, &d->triggers, link)
>> + free(t);
>> +}
>> +
>> +/**
>> + * xe_eudebug_debugger_destroy:
>> + * @d: pointer to the debugger
>> + *
>> + * Frees xe_eudebug_debugger structure pointed by @d. If the debugger
>> + * connection was still opened it terminates it.
>> + */
>> +void xe_eudebug_debugger_destroy(struct xe_eudebug_debugger *d)
>> +{
>> + if (d->worker_state)
>> + xe_eudebug_debugger_stop_worker(d, 1);
>> +
>> + if (d->target_pid)
>> + xe_eudebug_debugger_dettach(d);
>> +
>> + xe_eudebug_event_log_destroy(d->log);
>> + debugger_destroy_triggers(d);
>> + free(d);
>> +}
>> +
>> +/**
>> + * xe_eudebug_debugger_attach:
>> + * @d: pointer to the debugger
>> + * @c: pointer to the client
>> + *
>> + * Opens the xe eu debugger connection to the process described by @c (c->pid)
>> + *
>> + * Returns: 0 if the debugger was successfully attached, -errno otherwise.
>> + */
>> +int xe_eudebug_debugger_attach(struct xe_eudebug_debugger *d,
>> + struct xe_eudebug_client *c)
>> +{
>> + int ret;
>> +
>> + igt_assert_eq(d->fd, -1);
>> + igt_assert_neq(c->pid, 0);
>> + ret = xe_eudebug_connect(d->master_fd, c->pid, 0);
>> +
>> + if (ret < 0)
>> + return ret;
>> +
>> + d->fd = ret;
>> + d->target_pid = c->pid;
>> + d->p_client[0] = c->p_in[0];
>> + d->p_client[1] = c->p_in[1];
>> +
>> + igt_debug("debugger connected to %lu\n", d->target_pid);
>> +
>> + return 0;
>> +}
>> +
>> +/**
>> + * xe_eudebug_debugger_dettach:
>> + * @d: pointer to the debugger
>> + *
>> + * Closes previously opened xe eu debugger connection. Asserts if
>> + * the debugger has active session.
>> + */
>> +void xe_eudebug_debugger_dettach(struct xe_eudebug_debugger *d)
>> +{
>> + igt_assert(d->target_pid);
>> + close(d->fd);
>> + d->target_pid = 0;
>> + d->fd = -1;
>> +}
>> +
>> +/**
>> + * xe_eudebug_debugger_add_trigger:
>> + * @d: pointer to the debugger
>> + * @type: the type of the event which activates the trigger
>> + * @fn: function to be called when event of @type was read by the debugger.
>> + *
>> + * Adds function @fn to the list of triggers activated when event of @type
>> + * has been read by worker.
>> + * Note: Triggers are activated by the worker.
>> + */
>> +void xe_eudebug_debugger_add_trigger(struct xe_eudebug_debugger *d,
>> + int type, xe_eudebug_trigger_fn fn)
>> +{
>> + struct event_trigger *t;
>> +
>> + t = calloc(1, sizeof(*t));
>> + IGT_INIT_LIST_HEAD(&t->link);
>> + t->type = type;
>> + t->fn = fn;
>> +
>> + igt_list_add_tail(&t->link, &d->triggers);
>> + igt_debug("added trigger %p\n", t);
>> +}
>> +
>> +/**
>> + * xe_eudebug_debugger_start_worker:
>> + * @d: pointer to the debugger
>> + *
>> + * Starts the debugger worker. Worker is resposible for reading all
>> + * incoming events from the debugger, put then into debugger log and
>> + * execute appropriate event triggers. Note that using the debuggers
>> + * event log while worker is running is not safe.
>> + */
>> +void xe_eudebug_debugger_start_worker(struct xe_eudebug_debugger *d)
>> +{
>> + int ret;
>> +
>> + d->worker_state = true;
>> + ret = pthread_create(&d->worker_thread, NULL, &debugger_worker_loop, d);
>> +
>> + igt_assert_f(ret == 0, "Debugger worker thread creation failed!");
>> +}
>> +
>> +/**
>> + * xe_eudebug_debugger_stop_worker:
>> + * @d: pointer to the debugger
>> + *
>> + * Stops the debugger worker. Event log is sorted by seqno after closure.
>> + */
>> +void xe_eudebug_debugger_stop_worker(struct xe_eudebug_debugger *d,
>> + int timeout_s)
>> +{
>> + struct timespec t = {};
>> + int ret;
>> +
>> + igt_assert(d->worker_state);
>> +
>> + d->worker_state = DEBUGGER_WORKER_QUITTING; /* First time be polite. */
>> + igt_assert_eq(clock_gettime(CLOCK_REALTIME, &t), 0);
>> + t.tv_sec += timeout_s;
>> +
>> + ret = pthread_timedjoin_np(d->worker_thread, NULL, &t);
>> +
>> + if (ret == ETIMEDOUT) {
>> + d->worker_state = DEBUGGER_WORKER_INACTIVE;
>> + ret = pthread_join(d->worker_thread, NULL);
>> + }
>> +
>> + igt_assert_f(ret == 0 || ret != ESRCH,
>> + "pthread join failed with error %d!\n", ret);
>> +
>> + event_log_sort(d->log);
>> +}
>> +
>> +/**
>> + * xe_eudebug_debugger_signal_stage:
>> + * @d: pointer to the debugger
>> + * @stage: stage to signal
>> + *
>> + * Signals to client, waiting in xe_eudebug_client_wait_stage(),
>> + * releasing it to proceed.
>> + */
>> +void xe_eudebug_debugger_signal_stage(struct xe_eudebug_debugger *d, uint64_t stage)
>> +{
>> + token_signal(d->p_client, CLIENT_STAGE, stage);
>> +}
>> +
>> +/**
>> + * xe_eudebug_debugger_wait_stage:
>> + * @s: pointer to xe_eudebug_debugger structure
>> + * @stage: stage to wait on
>> + *
>> + * Pauses debugger until the client has signalled the corresponding stage with
>> + * xe_eudebug_client_signal_stage. This is only for situations where the actual
>> + * event flow is not enough to coordinate between client/debugger and extra sync
>> + * mechanism is needed.
>> + */
>> +void xe_eudebug_debugger_wait_stage(struct xe_eudebug_session *s, uint64_t stage)
>> +{
>> + u64 stage_in;
>> +
>> + igt_debug("debugger xe client fd: %d pausing for stage %lu\n", s->d->master_fd, stage);
>> +
>> + stage_in = wait_from_client(s->c, DEBUGGER_STAGE);
>> + igt_debug("debugger xe client fd: %d stage %lu, expected %lu, stage\n", s->d->master_fd,
>> + stage_in, stage);
>> +
>> + igt_assert_eq(stage_in, stage);
>> +}
>> +
>> +/**
>> + * xe_eudebug_client_create:
>> + * @master_fd: xe client used to open the debugger connection
>> + * @work: function that opens xe device and executes arbitrary workload
>> + * @flags: flags stored in a client structure, can be used at will
>> + * of the caller, i.e. to provide the @work function an additional switch.
>> + * @data: test's private data, allocated with MAP_SHARED | MAP_ANONYMOUS,
>> + * can be shared between client and debugger. Accesible via client->ptr.
>> + * Can be NULL.
>> + *
>> + * Forks and creates the debugger process. @work won't be called until
>> + * xe_eudebug_client_start is called.
>> + *
>> + * Returns: newly created xe_eudebug_debugger structure with its
>> + * event log initialized.
>> + */
>> +struct xe_eudebug_client *xe_eudebug_client_create(int master_fd, xe_eudebug_client_work_fn work,
>> + uint64_t flags, void *data)
>> +{
>> + struct xe_eudebug_client *c;
>> +
>> + c = calloc(1, sizeof(*c));
>> + c->flags = flags;
>> + igt_assert(c);
>> + igt_assert(!pipe(c->p_in));
>> + igt_assert(!pipe(c->p_out));
>> + c->seqno = 1;
>> + c->log = xe_eudebug_event_log_create("client", MAX_EVENT_LOG_SIZE);
>> + c->done = 0;
>> + c->ptr = data;
>> + c->master_fd = master_fd;
>> + c->timeout_ms = XE_EUDEBUG_DEFAULT_TIMEOUT_MS;
>> +
>> + igt_fork(child, 1) {
>> + int mypid;
>> +
>> + igt_assert_eq(c->pid, 0);
>> +
>> + close(c->p_out[0]);
>> + c->p_out[0] = -1;
>> + close(c->p_in[1]);
>> + c->p_in[1] = -1;
>> +
>> + mypid = getpid();
>> + client_signal(c, CLIENT_PID, mypid);
>> +
>> + c->pid = client_wait_token(c, CLIENT_RUN);
>> + igt_assert_eq(c->pid, mypid);
>> + if (work)
>> + work(c);
>> +
>> + client_signal(c, CLIENT_FINI, c->seqno);
>> +
>> + event_log_write_to_fd(c->log, c->p_out[1]);
>> +
>> + c->pid = client_wait_token(c, CLIENT_STOP);
>> + igt_assert_eq(c->pid, mypid);
>> + }
>> +
>> + close(c->p_out[1]);
>> + c->p_out[1] = -1;
>> + close(c->p_in[0]);
>> + c->p_in[0] = -1;
>> +
>> + c->pid = wait_from_client(c, CLIENT_PID);
>> +
>> + igt_info("client running with pid %d\n", c->pid);
>> +
>> + return c;
>> +}
>> +
>> +/**
>> + * xe_eudebug_client_stop:
>> + * @c: pointer to xe_eudebug_client structure
>> + *
>> + * Waits for the end of client's work and exits the proccess.
>> + */
>> +void xe_eudebug_client_stop(struct xe_eudebug_client *c)
>> +{
>> + if (c->pid) {
>> + int waitstatus;
>> +
>> + xe_eudebug_client_wait_done(c);
>> +
>> + token_signal(c->p_in, CLIENT_STOP, c->pid);
>> + igt_assert_eq(waitpid(c->pid, &waitstatus, 0),
>> + c->pid);
>> + c->pid = 0;
>> + }
>> +}
>> +
>> +/**
>> + * xe_eudebug_client_destroy:
>> + * @c: pointer to xe_eudebug_client structure to be freed
>> + *
>> + * Frees the @c client structure. Note that it calls xe_eudebug_client_stop if
>> + * client proccess has not terminated yet.
>> + */
>> +void xe_eudebug_client_destroy(struct xe_eudebug_client *c)
>> +{
>> + xe_eudebug_client_stop(c);
>> + pipe_close(c->p_in);
>> + pipe_close(c->p_out);
>> + xe_eudebug_event_log_destroy(c->log);
>> + free(c);
>> +}
>> +
>> +/**
>> + * xe_eudebug_client_get_seqno:
>> + * @c: pointer to xe_eudebug_client structure
>> + *
>> + * Increments and returns current seqno value of the given client @c
>> + *
>> + * Returns: incremented seqno
>> + */
>> +uint64_t xe_eudebug_client_get_seqno(struct xe_eudebug_client *c)
>> +{
>> + return c->seqno++;
>> +}
>> +
>> +/**
>> + * xe_eudebug_client_start:
>> + * @c: pointer to xe_eudebug_client structure
>> + *
>> + * Starts execution of client's work function within the client's proccess.
>> + */
>> +void xe_eudebug_client_start(struct xe_eudebug_client *c)
>> +{
>> + token_signal(c->p_in, CLIENT_RUN, c->pid);
>> +}
>> +
>> +/**
>> + * xe_eudebug_client_wait_done:
>> + * @c: pointer to xe_eudebug_client structure
>> + *
>> + * Waits for the client work end updates the event log.
>> + * Doesn't terminate the client's proccess yet.
>> + */
>> +void xe_eudebug_client_wait_done(struct xe_eudebug_client *c)
>> +{
>> + if (!c->done) {
>> + c->done = 1;
>> + c->seqno = wait_from_client(c, CLIENT_FINI);
>> + event_log_read_from_fd(c->log, c->p_out[0]);
>> + }
>> +}
>> +
>> +/**
>> + * xe_eudebug_client_signal_stage:
>> + * @c: pointer to the client
>> + * @stage: stage to signal
>> + *
>> + * Signals to debugger, waiting in xe_eudebug_debugger_wait_stage(),
>> + * releasing it to proceed.
>> + */
>> +void xe_eudebug_client_signal_stage(struct xe_eudebug_client *c, uint64_t stage)
>> +{
>> + token_signal(c->p_out, DEBUGGER_STAGE, stage);
>> +}
>> +
>> +/**
>> + * xe_eudebug_client_wait_stage:
>> + * @c: pointer to xe_eudebug_client structure
>> + * @stage: stage to wait on
>> + *
>> + * Pauses client until the debugger has signalled the corresponding stage with
>> + * xe_eudebug_debugger_signal_stage. This is only for situations where the
>> + * actual event flow is not enough to coordinate between client/debugger and extra
>> + * sync mechanism is needed.
>> + *
>> + */
>> +void xe_eudebug_client_wait_stage(struct xe_eudebug_client *c, uint64_t stage)
>> +{
>> + u64 stage_in;
>> +
>> + if (c->done) {
>> + igt_warn("client: %d already done before %lu\n", c->pid, stage);
>> + return;
>> + }
>> +
>> + igt_debug("client: %d pausing for stage %lu\n", c->pid, stage);
>> +
>> + stage_in = client_wait_token(c, CLIENT_STAGE);
>> + igt_debug("client: %d stage %lu, expected %lu, stage\n", c->pid, stage_in, stage);
>> +
>> + igt_assert_eq(stage_in, stage);
>> +}
>> +
>> +
>> +/**
>> + * xe_eudebug_session_create:
>> + * @fd: XE file descriptor
>> + * @work: function passed to the xe_eudebug_client_create
>> + * @flags: flags passed to client and debugger
>> + * @test_private: test's data, allocated with MAP_SHARED | MAP_ANONYMOUS,
>> + * passed to client and debugger. Can be NULL.
>> + *
>> + * Creates session together with client and debugger structures.
>> + */
>> +struct xe_eudebug_session *xe_eudebug_session_create(int fd,
>> + xe_eudebug_client_work_fn work,
>> + unsigned int flags,
>> + void *test_private)
>> +{
>> + struct xe_eudebug_session *s;
>> +
>> + s = calloc(1, sizeof(*s));
>> + igt_assert(s);
>> +
>> + s->c = xe_eudebug_client_create(fd, work, flags, test_private);
>> + s->d = xe_eudebug_debugger_create(fd, flags, test_private);
>> + s->flags = flags;
>> +
>> + return s;
>> +}
>> +
>> +/**
>> + * xe_eudebug_session_run:
>> + * @s: pointer to xe_eudebug_session structure
>> + *
>> + * Attaches debugger to client's proccess, starts debugger's
>> + * async event reader, starts client and once client finish
>> + * it stops debugger worker.
>> + */
>> +void xe_eudebug_session_run(struct xe_eudebug_session *s)
>> +{
>> + struct xe_eudebug_debugger *debugger = s->d;
>> + struct xe_eudebug_client *client = s->c;
>> +
>> + igt_assert_eq(xe_eudebug_debugger_attach(debugger, client), 0);
>> +
>> + xe_eudebug_debugger_start_worker(debugger);
>> +
>> + xe_eudebug_client_start(client);
>> + xe_eudebug_client_wait_done(client);
>> +
>> + xe_eudebug_debugger_stop_worker(debugger, 1);
>> +
>> + xe_eudebug_event_log_print(debugger->log, true);
>> + xe_eudebug_event_log_print(client->log, true);
>> +}
>> +
>> +/**
>> + * xe_eudebug_session_check:
>> + * @s: pointer to xe_eudebug_session structure
>> + * @match_opposite: indicates whether check should match all
>> + * create and destroy events.
>> + * @filter: mask that represents events to be skipped during comparison, useful
>> + * for events like 'VM_BIND' since they can be asymmetric
>> + *
>> + * Validate debugger's log against the log created by the client.
>> + */
>> +void xe_eudebug_session_check(struct xe_eudebug_session *s, bool match_opposite, uint32_t filter)
>> +{
>> + xe_eudebug_event_log_compare(s->c->log, s->d->log, filter);
>> +
>> + if (match_opposite)
>> + xe_eudebug_event_log_match_opposite(s->d->log, filter);
>> +}
>> +
>> +/**
>> + * xe_eudebug_session_destroy:
>> + * @s: pointer to xe_eudebug_session structure
>> + *
>> + * Destroy session together with its debugger and client.
>> + */
>> +void xe_eudebug_session_destroy(struct xe_eudebug_session *s)
>> +{
>> + xe_eudebug_debugger_destroy(s->d);
>> + xe_eudebug_client_destroy(s->c);
>> +
>> + free(s);
>> +}
>> +
>> +#define to_base(x) ((struct drm_xe_eudebug_event *)&x)
>> +
>> +static void base_event(struct xe_eudebug_client *c,
>> + struct drm_xe_eudebug_event *e,
>> + uint32_t type,
>> + uint32_t flags,
>> + uint64_t size)
>> +{
>> + e->type = type;
>> + e->flags = flags;
>> + e->seqno = xe_eudebug_client_get_seqno(c);
>> + e->len = size;
>> +}
>> +
>> +static void client_event(struct xe_eudebug_client *c, uint32_t flags, int client_fd)
>> +{
>> + struct drm_xe_eudebug_event_client ec;
>> +
>> + base_event(c, to_base(ec), DRM_XE_EUDEBUG_EVENT_OPEN, flags, sizeof(ec));
>> +
>> + ec.client_handle = client_fd;
>> +
>> + xe_eudebug_event_log_write(c->log, (void *)&ec);
>> +}
>> +
>> +static void vm_event(struct xe_eudebug_client *c, uint32_t flags, int client_fd, uint32_t vm_id)
>> +{
>> + struct drm_xe_eudebug_event_vm evm;
>> +
>> + base_event(c, to_base(evm), DRM_XE_EUDEBUG_EVENT_VM, flags, sizeof(evm));
>> +
>> + evm.client_handle = client_fd;
>> + evm.vm_handle = vm_id;
>> +
>> + xe_eudebug_event_log_write(c->log, (void *)&evm);
>> +}
>> +
>> +static void exec_queue_event(struct xe_eudebug_client *c, uint32_t flags,
>> + int client_fd, uint32_t vm_id,
>> + uint32_t exec_queue_handle, uint16_t class,
>> + uint16_t width)
>> +{
>> + struct drm_xe_eudebug_event_exec_queue ee;
>> +
>> + base_event(c, to_base(ee), DRM_XE_EUDEBUG_EVENT_EXEC_QUEUE,
>> + flags, sizeof(ee));
>> +
>> + ee.client_handle = client_fd;
>> + ee.vm_handle = vm_id;
>> + ee.exec_queue_handle = exec_queue_handle;
>> + ee.engine_class = class;
>> + ee.width = width;
>> +
>> + xe_eudebug_event_log_write(c->log, (void *)&ee);
>> +}
>> +
>> +static void metadata_event(struct xe_eudebug_client *c, uint32_t flags,
>> + int client_fd, uint32_t id, uint64_t type, uint64_t len)
>> +{
>> + struct drm_xe_eudebug_event_metadata em;
>> +
>> + base_event(c, to_base(em), DRM_XE_EUDEBUG_EVENT_METADATA,
>> + flags, sizeof(em));
>> +
>> + em.client_handle = client_fd;
>> + em.metadata_handle = id;
>> + em.type = type;
>> + em.len = len;
>> +
>> + xe_eudebug_event_log_write(c->log, (void *)&em);
>> +}
>> +
>> +static int enable_getset(int fd, bool *old, bool *new)
>> +{
>> + static const char * const fname = "enable_eudebug";
>> + int ret = 0;
>> +
>> + int sysfs, device_fd;
>> + bool val_before;
>> + struct stat st;
>> +
>> + igt_assert(new || old);
>> +
>> + igt_assert_eq(fstat(fd, &st), 0);
>> + sysfs = igt_sysfs_open(fd);
>> + if (sysfs < 0)
>> + return -1;
>> +
>> + device_fd = openat(sysfs, "device", O_DIRECTORY | O_RDONLY);
>> + close(sysfs);
>> + if (device_fd < 0)
>> + return -1;
>> +
>> + if (!__igt_sysfs_get_boolean(device_fd, fname, &val_before)) {
>> + ret = -1;
>> + goto out;
>> + }
>> +
>> + igt_debug("enable_eudebug before: %d\n", val_before);
>> +
>> + if (old)
>> + *old = val_before;
>> +
>> + ret = 0;
>> + if (new) {
>> + if (__igt_sysfs_set_boolean(device_fd, fname, *new))
>> + igt_assert_eq(igt_sysfs_get_boolean(device_fd, fname), *new);
>> + else
>> + ret = -1;
>> + }
>> +
>> +out:
>> + close(device_fd);
>> + return ret;
>> +}
>> +
>> +/**
>> + * xe_eudebug_enable
>> + * @fd: xe client
>> + * @enable: state toggle - true to enable, false to disable
>> + *
>> + * Enables/disables eudebug capability by writing to
>> + * '/sys/class/drm/card<N>/device/enable_eudebug' sysfs entry.
>> + *
>> + * Returns: previous toggle value, i.e. true when eudebugging was enabled,
>> + * false when eudebugging was disabled.
>> + */
>> +bool xe_eudebug_enable(int fd, bool enable)
>> +{
>> + bool old = false;
>> + int ret = enable_getset(fd, &old, &enable);
>> +
>> + if (ret) {
>> + igt_skip_on(enable);
>> + old = false;
>> + }
>> +
>> + return old;
>> +}
>> +
>> +/* Eu debugger wrappers around resource creating xe ioctls. */
>> +
>> +/**
>> + * xe_eudebug_client_open_driver:
>> + * @c: pointer to xe_eudebug_client structure
>> + *
>> + * Calls drm_open_client(DRIVER_XE) and logs the corresponding
>> + * event in client's event log.
>> + *
>> + * Returns: valid DRM file descriptor
>> + */
>> +int xe_eudebug_client_open_driver(struct xe_eudebug_client *c)
>> +{
>> + int fd;
>> +
>> + fd = drm_reopen_driver(c->master_fd);
>> + client_event(c, DRM_XE_EUDEBUG_EVENT_CREATE, fd);
>> +
>> + return fd;
>> +}
>> +
>> +/**
>> + * xe_eudebug_client_close_driver:
>> + * @c: pointer to xe_eudebug_client structure
>> + * @fd: xe client
>> + *
>> + * Calls close driver and logs the corresponding event in
>> + * client's event log.
>> + */
>> +void xe_eudebug_client_close_driver(struct xe_eudebug_client *c, int fd)
>> +{
>> + client_event(c, DRM_XE_EUDEBUG_EVENT_DESTROY, fd);
>> + close(fd);
>> +}
>> +
>> +/**
>> + * xe_eudebug_client_vm_create:
>> + * @c: pointer to xe_eudebug_client structure
>> + * @fd: xe client
>> + * @flags: vm bind flags
>> + * @ext: pointer to the first user extension
>> + *
>> + * Calls xe_vm_create() and logs corresponding events
>> + * (including vm set metadata events) in client's event log.
>> + *
>> + * Returns: valid vm handle
>> + */
>> +uint32_t xe_eudebug_client_vm_create(struct xe_eudebug_client *c, int fd,
>> + uint32_t flags, uint64_t ext)
>> +{
>> + uint32_t vm;
>> +
>> + vm = xe_vm_create(fd, flags, ext);
>> + vm_event(c, DRM_XE_EUDEBUG_EVENT_CREATE, fd, vm);
>> +
>> + return vm;
>> +}
>> +
>> +/**
>> + * xe_eudebug_client_vm_destroy:
>> + * @c: pointer to xe_eudebug_client structure
>> + * fd: xe client
>> + * vm: vm handle
>> + *
>> + * Calls xe_vm_destroy() and logs the corresponding event in
>> + * client's event log.
>> + */
>> +void xe_eudebug_client_vm_destroy(struct xe_eudebug_client *c, int fd, uint32_t vm)
>> +{
>> + xe_vm_destroy(fd, vm);
>> + vm_event(c, DRM_XE_EUDEBUG_EVENT_DESTROY, fd, vm);
>> +}
>> +
>> +/**
>> + * xe_eudebug_client_exec_queue_create:
>> + * @c: pointer to xe_eudebug_client structure
>> + * @fd: xe client
>> + * @create: exec_queue create drm struct
>> + *
>> + * Calls xe exec queue create ioctl and logs the corresponding event in
>> + * client's event log.
>> + *
>> + * Returns: valid exec queue handle
>> + */
>> +uint32_t xe_eudebug_client_exec_queue_create(struct xe_eudebug_client *c, int fd,
>> + struct drm_xe_exec_queue_create *create)
>> +{
>> + uint16_t class = ((struct drm_xe_engine_class_instance *)(create->instances))[0].engine_class;
>> +
>> + igt_assert_eq(igt_ioctl(fd, DRM_IOCTL_XE_EXEC_QUEUE_CREATE, create), 0);
>> +
>> + if (class == DRM_XE_ENGINE_CLASS_COMPUTE || class == DRM_XE_ENGINE_CLASS_RENDER)
>> + exec_queue_event(c, DRM_XE_EUDEBUG_EVENT_CREATE, fd, create->vm_id,
>> + create->exec_queue_id, class, create->width);
>> +
>> + return create->exec_queue_id;
>> +}
>> +
>> +/**
>> + * xe_eudebug_client_exec_queue_destroy:
>> + * @c: pointer to xe_eudebug_client structure
>> + * @fd: xe client
>> + * @create: exec_queue create drm struct which was used for creation
>> + *
>> + * Calls xe exec_queue destroy ioctl and logs the corresponding event in
>> + * client's event log.
>> + */
>> +void xe_eudebug_client_exec_queue_destroy(struct xe_eudebug_client *c, int fd,
>> + struct drm_xe_exec_queue_create *create)
>> +{
>> + struct drm_xe_exec_queue_destroy destroy = { .exec_queue_id = create->exec_queue_id, };
>> + uint16_t class = ((struct drm_xe_engine_class_instance *)(create->instances))[0].engine_class;
>> +
>> + if (class == DRM_XE_ENGINE_CLASS_COMPUTE || class == DRM_XE_ENGINE_CLASS_RENDER)
>> + exec_queue_event(c, DRM_XE_EUDEBUG_EVENT_DESTROY, fd, create->vm_id,
>> + create->exec_queue_id, class, create->width);
>> +
>> + igt_assert_eq(igt_ioctl(fd, DRM_IOCTL_XE_EXEC_QUEUE_DESTROY, &destroy), 0);
>> +}
>> +
>> +/**
>> + * xe_eudebug_client_vm_bind_event:
>> + * @c: pointer to xe_eudebug_client structure
>> + * @event_flags: base event flags
>> + * @fd: xe client
>> + * @vm: vm handle
>> + * @bind_flags: bind flags of vm_bind_event
>> + * @num_binds: number of bind (operations) for event
>> + * @ref_seqno: base vm bind reference seqno
>> + * Logs vm bind event in client's event log.
>> + */
>> +void xe_eudebug_client_vm_bind_event(struct xe_eudebug_client *c,
>> + uint32_t event_flags, int fd,
>> + uint32_t vm, uint32_t bind_flags,
>> + uint32_t num_binds, u64 *ref_seqno)
>> +{
>> + struct drm_xe_eudebug_event_vm_bind evmb;
>> +
>> + base_event(c, to_base(evmb), DRM_XE_EUDEBUG_EVENT_VM_BIND,
>> + event_flags, sizeof(evmb));
>> + evmb.client_handle = fd;
>> + evmb.vm_handle = vm;
>> + evmb.flags = bind_flags;
>> + evmb.num_binds = num_binds;
>> +
>> + *ref_seqno = evmb.base.seqno;
>> +
>> + xe_eudebug_event_log_write(c->log, (void *)&evmb);
>> +}
>> +
>> +/**
>> + * xe_eudebug_client_vm_bind_op_event:
>> + * @c: pointer to xe_eudebug_client structure
>> + * @event_flags: base event flags
>> + * @bind_ref_seqno: base vm bind reference seqno
>> + * @op_ref_seqno: output, the vm_bind_op event seqno
>> + * @addr: ppgtt address
>> + * @size: size of the binding
>> + * @num_extensions: number of vm bind op extensions
>> + *
>> + * Logs vm bind op event in client's event log.
>> + */
>> +void xe_eudebug_client_vm_bind_op_event(struct xe_eudebug_client *c, uint32_t event_flags,
>> + uint64_t bind_ref_seqno, uint64_t *op_ref_seqno,
>> + uint64_t addr, uint64_t range,
>> + uint64_t num_extensions)
>> +{
>> + struct drm_xe_eudebug_event_vm_bind_op op;
>> +
>> + base_event(c, to_base(op), DRM_XE_EUDEBUG_EVENT_VM_BIND_OP,
>> + event_flags, sizeof(op));
>> + op.vm_bind_ref_seqno = bind_ref_seqno;
>> + op.addr = addr;
>> + op.range = range;
>> + op.num_extensions = num_extensions;
>> +
>> + *op_ref_seqno = op.base.seqno;
>> +
>> + xe_eudebug_event_log_write(c->log, (void *)&op);
>> +}
>> +
>> +/**
>> + * xe_eudebug_client_vm_bind_op_metadata_event:
>> + * @c: pointer to xe_eudebug_client structure
>> + * @event_flags: base event flags
>> + * @op_ref_seqno: base vm bind op reference seqno
>> + * @metadata_handle: metadata handle
>> + * @metadata_cookie: metadata cookie
>> + *
>> + * Logs vm bind op metadata event in client's event log.
>> + */
>> +void xe_eudebug_client_vm_bind_op_metadata_event(struct xe_eudebug_client *c,
>> + uint32_t event_flags, uint64_t op_ref_seqno,
>> + uint64_t metadata_handle, uint64_t metadata_cookie)
>> +{
>> + struct drm_xe_eudebug_event_vm_bind_op_metadata op;
>> +
>> + base_event(c, to_base(op), DRM_XE_EUDEBUG_EVENT_VM_BIND_OP_METADATA,
>> + event_flags, sizeof(op));
>> + op.vm_bind_op_ref_seqno = op_ref_seqno;
>> + op.metadata_handle = metadata_handle;
>> + op.metadata_cookie = metadata_cookie;
>> +
>> + xe_eudebug_event_log_write(c->log, (void *)&op);
>> +}
>> +
>> +/**
>> + * xe_eudebug_client_vm_bind_ufence_event:
>> + * @c: pointer to xe_eudebug_client structure
>> + * @event_flags: base event flags
>> + * @ref_seqno: base vm bind event seqno
>> + *
>> + * Logs vm bind ufence event in client's event log.
>> + */
>> +void xe_eudebug_client_vm_bind_ufence_event(struct xe_eudebug_client *c, uint32_t event_flags,
>> + uint64_t ref_seqno)
>> +{
>> + struct drm_xe_eudebug_event_vm_bind_ufence f;
>> +
>> + base_event(c, to_base(f), DRM_XE_EUDEBUG_EVENT_VM_BIND_UFENCE,
>> + event_flags, sizeof(f));
>> + f.vm_bind_ref_seqno = ref_seqno;
>> +
>> + xe_eudebug_event_log_write(c->log, (void *)&f);
>> +}
>> +
>> +static bool has_user_fence(const struct drm_xe_sync *sync, uint32_t num_syncs)
>> +{
>> + while (num_syncs--)
>> + if (sync[num_syncs].type == DRM_XE_SYNC_TYPE_USER_FENCE)
>> + return true;
>> +
>> + return false;
>> +}
>> +
>> +#define for_each_metadata(__m, __ext) \
>> + for ((__m) = from_user_pointer(__ext); \
>> + (__m); \
>> + (__m) = from_user_pointer((__m)->base.next_extension)) \
>> + if ((__m)->base.name == XE_VM_BIND_OP_EXTENSIONS_ATTACH_DEBUG)
>> +
>> +static int __xe_eudebug_client_vm_bind(struct xe_eudebug_client *c,
>> + int fd, uint32_t vm, uint32_t exec_queue,
>> + uint32_t bo, uint64_t offset,
>> + uint64_t addr, uint64_t size,
>> + uint32_t op, uint32_t flags,
>> + struct drm_xe_sync *sync,
>> + uint32_t num_syncs,
>> + uint32_t prefetch_region,
>> + uint8_t pat_index, uint64_t op_ext)
>> +{
>> + struct drm_xe_vm_bind_op_ext_attach_debug *metadata;
>> + const bool ufence = has_user_fence(sync, num_syncs);
>> + const uint32_t bind_flags = ufence ?
>> + DRM_XE_EUDEBUG_EVENT_VM_BIND_FLAG_UFENCE : 0;
>> + uint64_t seqno = 0, op_seqno = 0, num_metadata = 0;
>> + uint32_t bind_base_flags = 0;
>> + int ret;
>> +
>> + for_each_metadata(metadata, op_ext)
>> + num_metadata++;
>> +
>> + switch (op) {
>> + case DRM_XE_VM_BIND_OP_MAP:
>> + bind_base_flags = DRM_XE_EUDEBUG_EVENT_CREATE;
>> + break;
>> + case DRM_XE_VM_BIND_OP_UNMAP:
>> + bind_base_flags = DRM_XE_EUDEBUG_EVENT_DESTROY;
>> + igt_assert_eq(num_metadata, 0);
>> + igt_assert_eq(ufence, false);
>> + break;
>> + default:
>> + /* XXX unmap all? */
>> + igt_assert(op);
>> + break;
>> + }
>> +
>> + ret = ___xe_vm_bind(fd, vm, exec_queue, bo, offset, addr, size,
>> + op, flags, sync, num_syncs, prefetch_region,
>> + pat_index, 0, op_ext);
>> +
>> + if (ret)
>> + return ret;
>> +
>> + if (!bind_base_flags)
>> + return -EINVAL;
>> +
>> + xe_eudebug_client_vm_bind_event(c, DRM_XE_EUDEBUG_EVENT_STATE_CHANGE,
>> + fd, vm, bind_flags, 1, &seqno);
>> + xe_eudebug_client_vm_bind_op_event(c, bind_base_flags,
>> + seqno, &op_seqno, addr, size,
>> + num_metadata);
>> +
>> + for_each_metadata(metadata, op_ext)
>> + xe_eudebug_client_vm_bind_op_metadata_event(c,
>> + DRM_XE_EUDEBUG_EVENT_CREATE,
>> + op_seqno,
>> + metadata->metadata_id,
>> + metadata->cookie);
>> + if (ufence)
>> + xe_eudebug_client_vm_bind_ufence_event(c, DRM_XE_EUDEBUG_EVENT_CREATE |
>> + DRM_XE_EUDEBUG_EVENT_NEED_ACK,
>> + seqno);
>> + return ret;
>> +}
>> +
>> +static void _xe_eudebug_client_vm_bind(struct xe_eudebug_client *c, int fd,
>> + uint32_t vm, uint32_t bo,
>> + uint64_t offset, uint64_t addr, uint64_t size,
>> + uint32_t op,
>> + uint32_t flags,
>> + struct drm_xe_sync *sync,
>> + uint32_t num_syncs,
>> + uint64_t op_ext)
>> +{
>> + const uint32_t exec_queue_id = 0;
>> + const uint32_t prefetch_region = 0;
>> +
>> + igt_assert_eq(__xe_eudebug_client_vm_bind(c, fd, vm, exec_queue_id, bo, offset,
>> + addr, size, op, flags,
>> + sync, num_syncs, prefetch_region,
>> + DEFAULT_PAT_INDEX, op_ext),
>> + 0);
>> +}
>> +
>> +/**
>> + * xe_eudebug_client_vm_bind_flags
>> + * @c: pointer to xe_eudebug_client structure
>> + * @fd: xe client
>> + * @vm: vm handle
>> + * @bo: buffer object handle
>> + * @offset: offset within buffer object
>> + * @addr: ppgtt address
>> + * @size: size of the binding
>> + * @flags: vm_bind flags
>> + * @sync: sync objects
>> + * @num_syncs: number of sync objects
>> + * @op_ext: BIND_OP extensions
>> + *
>> + * Calls xe vm_bind ioctl and logs the corresponding event in client's event log.
>> + */
>> +void xe_eudebug_client_vm_bind_flags(struct xe_eudebug_client *c, int fd, uint32_t vm,
>> + uint32_t bo, uint64_t offset,
>> + uint64_t addr, uint64_t size, uint32_t flags,
>> + struct drm_xe_sync *sync, uint32_t num_syncs,
>> + uint64_t op_ext)
>> +{
>> + _xe_eudebug_client_vm_bind(c, fd, vm, bo, offset, addr, size,
>> + DRM_XE_VM_BIND_OP_MAP, flags,
>> + sync, num_syncs, op_ext);
>> +}
>> +
>> +/**
>> + * xe_eudebug_client_vm_bind
>> + * @c: pointer to xe_eudebug_client structure
>> + * @fd: xe client
>> + * @vm: vm handle
>> + * @bo: buffer object handle
>> + * @offset: offset within buffer object
>> + * @addr: ppgtt address
>> + * @size: size of the binding
>> + *
>> + * Calls xe vm_bind ioctl and logs the corresponding event in client's event log.
>> + */
>> +void xe_eudebug_client_vm_bind(struct xe_eudebug_client *c, int fd, uint32_t vm,
>> + uint32_t bo, uint64_t offset,
>> + uint64_t addr, uint64_t size)
>> +{
>> + const uint32_t flags = 0;
>> + struct drm_xe_sync *sync = NULL;
>> + const uint32_t num_syncs = 0;
>> + const uint64_t op_ext = 0;
>> +
>> + xe_eudebug_client_vm_bind_flags(c, fd, vm, bo, offset, addr, size,
>> + flags,
>> + sync, num_syncs, op_ext);
>> +}
>> +
>> +/**
>> + * xe_eudebug_client_vm_unbind_flags
>> + * @c: pointer to xe_eudebug_client structure
>> + * @fd: xe client
>> + * @vm: vm handle
>> + * @offset: offset
>> + * @addr: ppgtt address
>> + * @size: size of the binding
>> + * @flags: vm_bind flags
>> + * @sync: sync objects
>> + * @num_syncs: number of sync objects
>> + *
>> + * Calls xe vm_unbind ioctl and logs the corresponding event in client's event log.
>> + */
>> +void xe_eudebug_client_vm_unbind_flags(struct xe_eudebug_client *c, int fd,
>> + uint32_t vm, uint64_t offset,
>> + uint64_t addr, uint64_t size, uint32_t flags,
>> + struct drm_xe_sync *sync, uint32_t num_syncs)
>> +{
>> + _xe_eudebug_client_vm_bind(c, fd, vm, 0, offset, addr, size,
>> + DRM_XE_VM_BIND_OP_UNMAP, flags,
>> + sync, num_syncs, 0);
>> +}
>> +
>> +/**
>> + * xe_eudebug_client_vm_unbind
>> + * @c: pointer to xe_eudebug_client structure
>> + * @fd: xe client
>> + * @vm: vm handle
>> + * @offset: offset
>> + * @addr: ppgtt address
>> + * @size: size of the binding
>> + *
>> + * Calls xe vm_unbind ioctl and logs the corresponding event in client's event log.
>> + */
>> +void xe_eudebug_client_vm_unbind(struct xe_eudebug_client *c, int fd, uint32_t vm,
>> + uint64_t offset, uint64_t addr, uint64_t size)
>> +{
>> + const uint32_t flags = 0;
>> + struct drm_xe_sync *sync = NULL;
>> + const uint32_t num_syncs = 0;
>> +
>> + xe_eudebug_client_vm_unbind_flags(c, fd, vm, offset, addr, size,
>> + flags, sync, num_syncs);
>> +}
>> +
>> +/**
>> + * xe_eudebug_client_metadata_create:
>> + * @c: pointer to xe_eudebug_client structure
>> + * @fd: xe client
>> + * @type: debug metadata type
>> + * @len: size of @data
>> + * @data: debug metadata paylad
>> + *
>> + * Calls xe metadata create ioctl and logs the corresponding event in
>> + * client's event log.
>> + *
>> + * Return: valid debug metadata id.
>> + */
>> +uint32_t xe_eudebug_client_metadata_create(struct xe_eudebug_client *c, int fd,
>> + int type, size_t len, void *data)
>> +{
>> + struct drm_xe_debug_metadata_create create = {
>> + .type = type,
>> + .user_addr = to_user_pointer(data),
>> + .len = len
>> + };
>> +
>> + igt_assert_eq(igt_ioctl(fd, DRM_IOCTL_XE_DEBUG_METADATA_CREATE, &create), 0);
>> +
>> + metadata_event(c, DRM_XE_EUDEBUG_EVENT_CREATE, fd, create.metadata_id, type, len);
>> +
>> + return create.metadata_id;
>> +}
>> +
>> +/**
>> + * xe_eudebug_client_metadata_destroy:
>> + * @c: pointer to xe_eudebug_client structure
>> + * @fd: xe client
>> + * @id: xe debug metadata handle
>> + * @type: debug metadata type
>> + * @len: size of debug metadata payload
>> + *
>> + * Calls xe metadata destroy ioctl and logs the corresponding event in
>> + * client's event log.
>> + */
>> +void xe_eudebug_client_metadata_destroy(struct xe_eudebug_client *c, int fd,
>> + uint32_t id, int type, size_t len)
>> +{
>> + struct drm_xe_debug_metadata_destroy destroy = { .metadata_id = id };
>> +
>> +
>> + igt_assert_eq(igt_ioctl(fd, DRM_IOCTL_XE_DEBUG_METADATA_DESTROY, &destroy), 0);
>> +
>> + metadata_event(c, DRM_XE_EUDEBUG_EVENT_DESTROY, fd, id, type, len);
>> +}
>> +
>> +void xe_eudebug_ack_ufence(int debugfd,
>> + const struct drm_xe_eudebug_event_vm_bind_ufence *f)
>> +{
>> + struct drm_xe_eudebug_ack_event ack = { 0, };
>> + char event_str[XE_EUDEBUG_EVENT_STRING_MAX_LEN];
>> +
>> + ack.type = f->base.type;
>> + ack.seqno = f->base.seqno;
>> +
>> + xe_eudebug_event_to_str((void *)f, event_str, XE_EUDEBUG_EVENT_STRING_MAX_LEN);
>> + igt_debug("delivering ack for event: %s\n", event_str);
>> + igt_assert_eq(igt_ioctl(debugfd, DRM_XE_EUDEBUG_IOCTL_ACK_EVENT, &ack), 0);
>> +}
>> diff --git a/lib/xe/xe_eudebug.h b/lib/xe/xe_eudebug.h
>> new file mode 100644
>> index 000000000..444f5a7b7
>> --- /dev/null
>> +++ b/lib/xe/xe_eudebug.h
>> @@ -0,0 +1,206 @@
>> +/* SPDX-License-Identifier: MIT */
>> +/*
>> + * Copyright © 2023 Intel Corporation
>> + */
>> +#include <fcntl.h>
>> +#include <pthread.h>
>> +#include <stdint.h>
>> +#include <xe_drm.h>
>> +
>> +#include "igt_list.h"
>> +
>> +struct xe_eudebug_event_log {
>> + uint8_t *log;
>> + unsigned int head;
>> + unsigned int max_size;
>> + char name[80];
>> + pthread_mutex_t lock;
>> +};
>> +
>> +struct xe_eudebug_debugger {
>> + int fd;
>> + uint64_t flags;
>> +
>> + /* Used to smuggle private data */
>> + void *ptr;
>> +
>> + struct xe_eudebug_event_log *log;
>> +
>> + uint64_t event_count;
>> +
>> + uint64_t target_pid;
>> +
>> + struct igt_list_head triggers;
>> +
>> + int master_fd;
>> +
>> + pthread_t worker_thread;
>> + int worker_state;
>> +
>> + int p_client[2];
>> +};
>> +
>> +struct xe_eudebug_client {
>> + int pid;
>> + uint64_t seqno;
>> + uint64_t flags;
>> +
>> + /* Used to smuggle private data */
>> + void *ptr;
>> +
>> + struct xe_eudebug_event_log *log;
>> +
>> + int done;
>> + int p_in[2];
>> + int p_out[2];
>> +
>> + /* Used to pickup right device (the one used in debugger) */
>> + int master_fd;
>> +
>> + int timeout_ms;
>> +};
>> +
>> +struct xe_eudebug_session {
>> + uint64_t flags;
>> + struct xe_eudebug_client *c;
>> + struct xe_eudebug_debugger *d;
>> +};
>> +
>> +typedef void (*xe_eudebug_client_work_fn)(struct xe_eudebug_client *);
>> +typedef void (*xe_eudebug_trigger_fn)(struct xe_eudebug_debugger *,
>> + struct drm_xe_eudebug_event *);
>> +
>> +#define xe_eudebug_for_each_event(_e, _log) \
>> + for ((_e) = (_e) ? (void *)(uint8_t *)(_e) + (_e)->len : \
>> + (void *)(_log)->log; \
>> + (uint8_t *)(_e) < (_log)->log + (_log)->head; \
>> + (_e) = (void *)(uint8_t *)(_e) + (_e)->len)
>> +
>> +#define xe_eudebug_assert(d, c) \
>> + do { \
>> + if (!(c)) { \
>> + xe_eudebug_event_log_print((d)->log, true); \
>> + igt_assert(c); \
>> + } \
>> + } while (0)
>> +
>> +#define xe_eudebug_assert_f(d, c, f...) \
>> + do { \
>> + if (!(c)) { \
>> + xe_eudebug_event_log_print((d)->log, true); \
>> + igt_assert_f(c, f); \
>> + } \
>> + } while (0)
>> +
>> +#define XE_EUDEBUG_EVENT_STRING_MAX_LEN 4096
>> +
>> +/*
>> + * Default abort timeout to use across xe_eudebug lib and tests if no specific
>> + * timeout value is required.
>> + */
>> +#define XE_EUDEBUG_DEFAULT_TIMEOUT_MS 25000ULL
>> +
>> +#define XE_EUDEBUG_FILTER_EVENT_NONE BIT(DRM_XE_EUDEBUG_EVENT_NONE)
>> +#define XE_EUDEBUG_FILTER_EVENT_READ BIT(DRM_XE_EUDEBUG_EVENT_READ)
>> +#define XE_EUDEBUG_FILTER_EVENT_OPEN BIT(DRM_XE_EUDEBUG_EVENT_OPEN)
>> +#define XE_EUDEBUG_FILTER_EVENT_VM BIT(DRM_XE_EUDEBUG_EVENT_VM)
>> +#define XE_EUDEBUG_FILTER_EVENT_EXEC_QUEUE BIT(DRM_XE_EUDEBUG_EVENT_EXEC_QUEUE)
>> +#define XE_EUDEBUG_FILTER_EVENT_EU_ATTENTION BIT(DRM_XE_EUDEBUG_EVENT_EU_ATTENTION)
>> +#define XE_EUDEBUG_FILTER_EVENT_VM_BIND BIT(DRM_XE_EUDEBUG_EVENT_VM_BIND)
>> +#define XE_EUDEBUG_FILTER_EVENT_VM_BIND_OP BIT(DRM_XE_EUDEBUG_EVENT_VM_BIND_OP)
>> +#define XE_EUDEBUG_FILTER_EVENT_VM_BIND_UFENCE BIT(DRM_XE_EUDEBUG_EVENT_VM_BIND_UFENCE)
>> +#define XE_EUDEBUG_FILTER_ALL GENMASK(DRM_XE_EUDEBUG_EVENT_MAX_EVENT, 0)
>> +#define XE_EUDEBUG_EVENT_IS_FILTERED(_e, _f) ((1UL << _e) & _f)
>> +
>> +int xe_eudebug_connect(int fd, pid_t pid, uint32_t flags);
>> +const char *xe_eudebug_event_to_str(struct drm_xe_eudebug_event *e, char *buf, size_t len);
>> +struct drm_xe_eudebug_event *
>> +xe_eudebug_event_log_find_seqno(struct xe_eudebug_event_log *l, uint64_t seqno);
>> +struct xe_eudebug_event_log *
>> +xe_eudebug_event_log_create(const char *name, unsigned int max_size);
>> +void xe_eudebug_event_log_destroy(struct xe_eudebug_event_log *l);
>> +void xe_eudebug_event_log_print(struct xe_eudebug_event_log *l, bool debug);
>> +void xe_eudebug_event_log_compare(struct xe_eudebug_event_log *c, struct xe_eudebug_event_log *d,
>> + uint32_t filter);
>> +void xe_eudebug_event_log_write(struct xe_eudebug_event_log *l, struct drm_xe_eudebug_event *e);
>> +void xe_eudebug_event_log_match_opposite(struct xe_eudebug_event_log *l, uint32_t filter);
>> +
>> +bool xe_eudebug_debugger_available(int fd);
>> +struct xe_eudebug_debugger *
>> +xe_eudebug_debugger_create(int xe, uint64_t flags, void *data);
>> +void xe_eudebug_debugger_destroy(struct xe_eudebug_debugger *d);
>> +int xe_eudebug_debugger_attach(struct xe_eudebug_debugger *d, struct xe_eudebug_client *c);
>> +void xe_eudebug_debugger_start_worker(struct xe_eudebug_debugger *d);
>> +void xe_eudebug_debugger_stop_worker(struct xe_eudebug_debugger *d, int timeout_s);
>> +void xe_eudebug_debugger_dettach(struct xe_eudebug_debugger *d);
>> +void xe_eudebug_debugger_set_data(struct xe_eudebug_debugger *c, void *ptr);
>> +void xe_eudebug_debugger_add_trigger(struct xe_eudebug_debugger *d, int type,
>> + xe_eudebug_trigger_fn fn);
>> +void xe_eudebug_debugger_signal_stage(struct xe_eudebug_debugger *d, uint64_t stage);
>> +void xe_eudebug_debugger_wait_stage(struct xe_eudebug_session *s, uint64_t stage);
>> +
>> +struct xe_eudebug_client *
>> +xe_eudebug_client_create(int xe, xe_eudebug_client_work_fn work, uint64_t flags, void *data);
>> +void xe_eudebug_client_destroy(struct xe_eudebug_client *c);
>> +void xe_eudebug_client_start(struct xe_eudebug_client *c);
>> +void xe_eudebug_client_stop(struct xe_eudebug_client *c);
>> +void xe_eudebug_client_wait_done(struct xe_eudebug_client *c);
>> +void xe_eudebug_client_signal_stage(struct xe_eudebug_client *c, uint64_t stage);
>> +void xe_eudebug_client_wait_stage(struct xe_eudebug_client *c, uint64_t stage);
>> +
>> +uint64_t xe_eudebug_client_get_seqno(struct xe_eudebug_client *c);
>> +void xe_eudebug_client_set_data(struct xe_eudebug_client *c, void *ptr);
>> +
>> +bool xe_eudebug_enable(int fd, bool enable);
>> +
>> +int xe_eudebug_client_open_driver(struct xe_eudebug_client *c);
>> +void xe_eudebug_client_close_driver(struct xe_eudebug_client *c, int fd);
>> +uint32_t xe_eudebug_client_vm_create(struct xe_eudebug_client *c, int fd,
>> + uint32_t flags, uint64_t ext);
>> +void xe_eudebug_client_vm_destroy(struct xe_eudebug_client *c, int fd, uint32_t vm);
>> +uint32_t xe_eudebug_client_exec_queue_create(struct xe_eudebug_client *c, int fd,
>> + struct drm_xe_exec_queue_create *create);
>> +void xe_eudebug_client_exec_queue_destroy(struct xe_eudebug_client *c, int fd,
>> + struct drm_xe_exec_queue_create *create);
>> +void xe_eudebug_client_vm_bind_event(struct xe_eudebug_client *c, uint32_t event_flags, int fd,
>> + uint32_t vm, uint32_t bind_flags,
>> + uint32_t num_ops, uint64_t *ref_seqno);
>> +void xe_eudebug_client_vm_bind_op_event(struct xe_eudebug_client *c, uint32_t event_flags,
>> + uint64_t ref_seqno, uint64_t *op_ref_seqno,
>> + uint64_t addr, uint64_t range,
>> + uint64_t num_extensions);
>> +void xe_eudebug_client_vm_bind_op_metadata_event(struct xe_eudebug_client *c,
>> + uint32_t event_flags, uint64_t op_ref_seqno,
>> + uint64_t metadata_handle, uint64_t metadata_cookie);
>> +void xe_eudebug_client_vm_bind_ufence_event(struct xe_eudebug_client *c, uint32_t event_flags,
>> + uint64_t ref_seqno);
>> +void xe_eudebug_ack_ufence(int debugfd,
>> + const struct drm_xe_eudebug_event_vm_bind_ufence *f);
>> +
>> +void xe_eudebug_client_vm_bind_flags(struct xe_eudebug_client *c, int fd, uint32_t vm,
>> + uint32_t bo, uint64_t offset,
>> + uint64_t addr, uint64_t size, uint32_t flags,
>> + struct drm_xe_sync *sync, uint32_t num_syncs,
>> + uint64_t op_ext);
>> +void xe_eudebug_client_vm_bind(struct xe_eudebug_client *c, int fd, uint32_t vm,
>> + uint32_t bo, uint64_t offset,
>> + uint64_t addr, uint64_t size);
>> +void xe_eudebug_client_vm_unbind_flags(struct xe_eudebug_client *c, int fd,
>> + uint32_t vm, uint64_t offset,
>> + uint64_t addr, uint64_t size, uint32_t flags,
>> + struct drm_xe_sync *sync, uint32_t num_syncs);
>> +void xe_eudebug_client_vm_unbind(struct xe_eudebug_client *c, int fd, uint32_t vm,
>> + uint64_t offset, uint64_t addr, uint64_t size);
>> +
>> +uint32_t xe_eudebug_client_metadata_create(struct xe_eudebug_client *c, int fd,
>> + int type, size_t len, void *data);
>> +void xe_eudebug_client_metadata_destroy(struct xe_eudebug_client *c, int fd,
>> + uint32_t id, int type, size_t len);
>> +
>> +struct xe_eudebug_session *xe_eudebug_session_create(int fd,
>> + xe_eudebug_client_work_fn work,
>> + unsigned int flags,
>> + void *test_private);
>> +void xe_eudebug_session_destroy(struct xe_eudebug_session *s);
>> +void xe_eudebug_session_run(struct xe_eudebug_session *s);
>> +void xe_eudebug_session_check(struct xe_eudebug_session *s, bool match_opposite, uint32_t filter);
>> --
>> 2.34.1
>>
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