[Intel-xe] [PATCH 10/10] drm/xe/oa: Implement queries

[Ashutosh Dixit]

Implement queries to query OA unit ID's for HW engines, OA timestamp freq
and OA ioctl version.

Signed-off-by: Ashutosh Dixit <ashutosh.dixit at intel.com>
---
 drivers/gpu/drm/xe/xe_oa.c    | 11 +++++++++++
 drivers/gpu/drm/xe/xe_oa.h    |  3 +++
 drivers/gpu/drm/xe/xe_query.c |  5 ++++-
 3 files changed, 18 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/xe/xe_oa.c b/drivers/gpu/drm/xe/xe_oa.c
index 163f057213258..8be7f6cf17930 100644
--- a/drivers/gpu/drm/xe/xe_oa.c
+++ b/drivers/gpu/drm/xe/xe_oa.c
@@ -2221,6 +2221,12 @@ static int xe_oa_init_engine_groups(struct xe_oa *oa)
 	return 0;
 }
 
+u32 xe_oa_unit_id(struct xe_hw_engine *hwe)
+{
+	return hwe->oa_group && hwe->oa_group->num_engines ?
+		hwe->oa_group->oa_unit_id : U32_MAX;
+}
+
 static void oa_format_add(struct xe_oa *oa, enum drm_xe_oa_format format)
 {
 	__set_bit(format, oa->format_mask);
@@ -2335,6 +2341,11 @@ static struct ctl_table oa_ctl_table[] = {
 	{}
 };
 
+int xe_oa_ioctl_version(struct xe_device *xe)
+{
+	return 1;
+}
+
 int xe_oa_sysctl_register(void)
 {
 	sysctl_header = register_sysctl("dev/xe", oa_ctl_table);
diff --git a/drivers/gpu/drm/xe/xe_oa.h b/drivers/gpu/drm/xe/xe_oa.h
index fd6caf652047a..41a7d8b0f10e1 100644
--- a/drivers/gpu/drm/xe/xe_oa.h
+++ b/drivers/gpu/drm/xe/xe_oa.h
@@ -22,4 +22,7 @@ int xe_oa_add_config_ioctl(struct drm_device *dev, void *data,
 			   struct drm_file *file);
 int xe_oa_remove_config_ioctl(struct drm_device *dev, void *data,
 			      struct drm_file *file);
+u32 xe_oa_timestamp_frequency(struct xe_device *xe);
+u32 xe_oa_unit_id(struct xe_hw_engine *hwe);
+
 #endif
diff --git a/drivers/gpu/drm/xe/xe_query.c b/drivers/gpu/drm/xe/xe_query.c
index f880c9af1651a..8acde018650cc 100644
--- a/drivers/gpu/drm/xe/xe_query.c
+++ b/drivers/gpu/drm/xe/xe_query.c
@@ -77,7 +77,8 @@ static int query_engines(struct xe_device *xe,
 				xe_to_user_engine_class[hwe->class];
 			hw_engine_info[i].engine_instance =
 				hwe->logical_instance;
-			hw_engine_info[i++].gt_id = gt->info.id;
+			hw_engine_info[i].gt_id = gt->info.id;
+			hw_engine_info[i++].oa_unit_id = xe_oa_unit_id(hwe);
 		}
 
 	if (copy_to_user(query_ptr, hw_engine_info, size)) {
@@ -203,6 +204,7 @@ static int query_config(struct xe_device *xe, struct drm_xe_device_query *query)
 		hweight_long(xe->info.mem_region_mask);
 	config->info[XE_QUERY_CONFIG_MAX_ENGINE_PRIORITY] =
 		xe_engine_device_get_max_priority(xe);
+	config->info[XE_QUERY_OA_IOCTL_VERSION] = xe_oa_ioctl_version(xe);
 
 	if (copy_to_user(query_ptr, config, size)) {
 		kfree(config);
@@ -244,6 +246,7 @@ static int query_gts(struct xe_device *xe, struct drm_xe_device_query *query)
 			gts->gts[id].type = XE_QUERY_GT_TYPE_MAIN;
 		gts->gts[id].instance = id;
 		gts->gts[id].clock_freq = gt->info.clock_freq;
+		gts->gts[id].oa_timestamp_freq = xe_oa_timestamp_frequency(xe);
 		if (!IS_DGFX(xe))
 			gts->gts[id].native_mem_regions = 0x1;
 		else
-- 
2.41.0