[PATCH i-g-t v3 04/14] lib/xe_eudebug: Introduce eu debug testing framework
Manszewski, Christoph
christoph.manszewski at intel.com
Fri Aug 23 07:58:27 UTC 2024
Hi Kamil,
On 22.08.2024 17:39, Kamil Konieczny wrote:
> Hi Zbigniew,
> On 2024-08-21 at 11:31:40 +0200, Zbigniew Kempczyński wrote:
>> On Tue, Aug 20, 2024 at 07:45:18PM +0200, Kamil Konieczny wrote:
>>> Hi Manszewski,,
>>> On 2024-08-20 at 18:14:07 +0200, Manszewski, Christoph wrote:
>>>> 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.
>>>
>>> What about adding skips in added tests if kernel do not support eudebug?
>>>
>>> This way you can have it without conditional compilation with
>>> ifdef/meson and also have it compile-time tested (if CI support test-with
>>> for Xe kernels).
>>
>> IMO simplest is to migrate code to xe_exec_sip_eudebug.c.
>>
>
> What about shorter name like xe_eudebug_sip.c ?
Well that depends on the motivation. The name proposed by Zbyszek better
undelines the fact that this is a variation of 'xe_exec_sip.c'. And
eventually, after the eudebug feature gets merged to KMD, I would assume
we could merge those two tests back into one.
Thanks,
Christoph
>
> Regards,
> Kamil
>
>> --
>> Zbigniew
>>
>>
>>>
>>> Regards,
>>> Kamil
>>>
>>>>
>>>> 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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