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drm/xe/lrc: Refactor out engine id to hwe conversion

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We need to define more helpers that read engine ID specific register, so
move that logic outside of get_ctx_timestamp().

Signed-off-by: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com>
Reviewed-by: Niranjana Vishwanathapura <niranjana.vishwanathapura@intel.com>
Link: https://patch.msgid.link/20260507162016.3888309-20-umesh.nerlige.ramappa@intel.com
This commit is contained in:
Umesh Nerlige Ramappa 2026-05-07 09:20:24 -07:00
parent be50e7dbd1
commit e3a9c46fc3
1 changed files with 15 additions and 5 deletions
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20
drivers/gpu/drm/xe/xe_lrc.c
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@ -2617,17 +2617,27 @@ void xe_lrc_snapshot_free(struct xe_lrc_snapshot *snapshot)
kfree(snapshot);
}
static int get_ctx_timestamp(struct xe_lrc *lrc, u32 engine_id, u64 *reg_ctx_ts)
static struct xe_hw_engine *engine_id_to_hwe(struct xe_gt *gt, u32 engine_id)
{
u16 class = REG_FIELD_GET(ENGINE_CLASS_ID, engine_id);
u16 instance = REG_FIELD_GET(ENGINE_INSTANCE_ID, engine_id);
struct xe_hw_engine *hwe = xe_gt_hw_engine(gt, class, instance, false);
if (xe_gt_WARN_ONCE(gt, !hwe || xe_hw_engine_is_reserved(hwe),
"Unexpected engine class:instance %d:%d for utilization\n",
class, instance))
return NULL;
return hwe;
}
static int get_ctx_timestamp(struct xe_lrc *lrc, u32 engine_id, u64 *reg_ctx_ts)
{
struct xe_hw_engine *hwe;
u64 val;
hwe = xe_gt_hw_engine(lrc->gt, class, instance, false);
if (xe_gt_WARN_ONCE(lrc->gt, !hwe || xe_hw_engine_is_reserved(hwe),
"Unexpected engine class:instance %d:%d for context utilization\n",
class, instance))
hwe = engine_id_to_hwe(lrc->gt, engine_id);
if (!hwe)
return -1;
if (lrc_to_xe(lrc)->info.has_64bit_timestamp)