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drm/xe: Add xe_tlb_inval structure

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Extract TLB invalidation state into a structure to decouple TLB
invalidations from the GT, allowing the structure to be embedded
anywhere in the driver.

Signed-off-by: Stuart Summers <stuart.summers@intel.com>
Reviewed-by: Stuart Summers <stuart.summers@intel.com>
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Link: https://lore.kernel.org/r/20250826182911.392550-5-stuart.summers@intel.com
This commit is contained in:
Matthew Brost
2025-08-26 18:29:06 +00:00
parent c697ddcf27
commit 594bb930fc
2 changed files with 36 additions and 31 deletions
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34
drivers/gpu/drm/xe/xe_gt_tlb_inval_types.h
View File

@@ -6,10 +6,44 @@
#ifndef _XE_GT_TLB_INVAL_TYPES_H_
#define _XE_GT_TLB_INVAL_TYPES_H_
#include <linux/workqueue.h>
#include <linux/dma-fence.h>
struct xe_gt;
/** struct xe_tlb_inval - TLB invalidation client */
struct xe_tlb_inval {
/** @tlb_inval.seqno: TLB invalidation seqno, protected by CT lock */
#define TLB_INVALIDATION_SEQNO_MAX 0x100000
int seqno;
/** @tlb_invalidation.seqno_lock: protects @tlb_invalidation.seqno */
struct mutex seqno_lock;
/**
* @tlb_inval.seqno_recv: last received TLB invalidation seqno,
* protected by CT lock
*/
int seqno_recv;
/**
* @tlb_inval.pending_fences: list of pending fences waiting TLB
* invaliations, protected by CT lock
*/
struct list_head pending_fences;
/**
* @tlb_inval.pending_lock: protects @tlb_inval.pending_fences
* and updating @tlb_inval.seqno_recv.
*/
spinlock_t pending_lock;
/**
* @tlb_inval.fence_tdr: schedules a delayed call to
* xe_gt_tlb_fence_timeout after the timeut interval is over.
*/
struct delayed_work fence_tdr;
/** @wtlb_invalidation.wq: schedules GT TLB invalidation jobs */
struct workqueue_struct *job_wq;
/** @tlb_inval.lock: protects TLB invalidation fences */
spinlock_t lock;
};
/**
* struct xe_gt_tlb_inval_fence - XE GT TLB invalidation fence
*

33
drivers/gpu/drm/xe/xe_gt_types.h
View File

@@ -12,6 +12,7 @@
#include "xe_gt_sriov_pf_types.h"
#include "xe_gt_sriov_vf_types.h"
#include "xe_gt_stats_types.h"
#include "xe_gt_tlb_inval_types.h"
#include "xe_hw_engine_types.h"
#include "xe_hw_fence_types.h"
#include "xe_oa_types.h"
@@ -186,37 +187,7 @@ struct xe_gt {
} reset;
/** @tlb_inval: TLB invalidation state */
struct {
/** @tlb_inval.seqno: TLB invalidation seqno, protected by CT lock */
#define TLB_INVALIDATION_SEQNO_MAX 0x100000
int seqno;
/** @tlb_invalidation.seqno_lock: protects @tlb_invalidation.seqno */
struct mutex seqno_lock;
/**
* @tlb_inval.seqno_recv: last received TLB invalidation seqno,
* protected by CT lock
*/
int seqno_recv;
/**
* @tlb_inval.pending_fences: list of pending fences waiting TLB
* invaliations, protected by CT lock
*/
struct list_head pending_fences;
/**
* @tlb_inval.pending_lock: protects @tlb_inval.pending_fences
* and updating @tlb_inval.seqno_recv.
*/
spinlock_t pending_lock;
/**
* @tlb_inval.fence_tdr: schedules a delayed call to
* xe_gt_tlb_fence_timeout after the timeut interval is over.
*/
struct delayed_work fence_tdr;
/** @wtlb_invalidation.wq: schedules GT TLB invalidation jobs */
struct workqueue_struct *job_wq;
/** @tlb_inval.lock: protects TLB invalidation fences */
spinlock_t lock;
} tlb_inval;
struct xe_tlb_inval tlb_inval;
/**
* @ccs_mode: Number of compute engines enabled.