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drm/xe/query: Report hwconfig size as 0 if primary GT is disabled

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The hwconfig table is part of the primary GT's GuC firmware.  If the
primary GT is disabled, the hwconfig is unavailable and should be
reported to userspace as having size 0.

Reviewed-by: Tejas Upadhyay <tejas.upadhyay@intel.com>
Link: https://lore.kernel.org/r/20251013200944.2499947-35-matthew.d.roper@intel.com
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
This commit is contained in:
Matt Roper
2025-10-13 13:09:53 -07:00
parent 082547d8b4
commit 090e7fc422
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/xe/xe_query.c
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@@ -436,7 +436,7 @@ static int query_hwconfig(struct xe_device *xe,
struct drm_xe_device_query *query)
{
struct xe_gt *gt = xe_root_mmio_gt(xe);
size_t size = xe_guc_hwconfig_size(&gt->uc.guc);
size_t size = gt ? xe_guc_hwconfig_size(&gt->uc.guc) : 0;
void __user *query_ptr = u64_to_user_ptr(query->data);
void *hwconfig;