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drm/xe/query: Avoid global forcewake in cycle query path

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Engine cycle query is a lightweight timestamp path and should not wake
unrelated GT domains. Limit forcewake scope to what the query actually
needs.

Suggested-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Xin Wang <x.wang@intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://patch.msgid.link/20260605051944.1541085-1-x.wang@intel.com
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
This commit is contained in:
Xin Wang
2026-06-04 22:19:44 -07:00
committed by Matt Roper
parent 3a11a63cc1
commit 9f89a6de30
1 changed files with 5 additions and 2 deletions
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7
drivers/gpu/drm/xe/xe_query.c
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@@ -119,6 +119,7 @@ query_engine_cycles(struct xe_device *xe,
struct drm_xe_engine_class_instance *eci;
struct drm_xe_query_engine_cycles resp;
size_t size = sizeof(resp);
enum xe_force_wake_domains fw_domain;
__ktime_func_t cpu_clock;
struct xe_hw_engine *hwe;
struct xe_gt *gt;
@@ -154,8 +155,10 @@ query_engine_cycles(struct xe_device *xe,
if (!hwe)
return -EINVAL;
xe_with_force_wake(fw_ref, gt_to_fw(gt), XE_FORCEWAKE_ALL) {
if (!xe_force_wake_ref_has_domain(fw_ref.domains, XE_FORCEWAKE_ALL))
fw_domain = xe_hw_engine_to_fw_domain(hwe);
xe_with_force_wake(fw_ref, gt_to_fw(gt), fw_domain) {
if (!xe_force_wake_ref_has_domain(fw_ref.domains, fw_domain))
return -EIO;
hwe_read_timestamp(hwe, &resp.engine_cycles, &resp.cpu_timestamp,