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drm/xe: Fix dequeue of access counter work item

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The access counters worker function is fixed to advance the head pointer
when dequeuing from the acc_queue.  This now matches the similar logic in
get_pagefault().

Signed-off-by: Bruce Chang <yu.bruce.chang@intel.com>
Signed-off-by: Brian Welty <brian.welty@intel.com>
Reviewed-by: Stuart Summers <stuart.summers@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
This commit is contained in:
Brian Welty 2023-10-31 14:12:16 -07:00 committed by Rodrigo Vivi
parent 81d11b9d66
commit 74a6c6438e
1 changed files with 5 additions and 2 deletions
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7
drivers/gpu/drm/xe/xe_gt_pagefault.c
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@ -542,6 +542,8 @@ static int handle_acc(struct xe_gt *gt, struct acc *acc)
#define make_u64(hi__, low__) ((u64)(hi__) << 32 | (u64)(low__))
#define ACC_MSG_LEN_DW 4
static int get_acc(struct acc_queue *acc_queue, struct acc *acc)
{
const struct xe_guc_acc_desc *desc;
@ -562,6 +564,9 @@ static int get_acc(struct acc_queue *acc_queue, struct acc *acc)
acc->access_type = FIELD_GET(ACC_TYPE, desc->dw0);
acc->va_range_base = make_u64(desc->dw3 & ACC_VIRTUAL_ADDR_RANGE_HI,
desc->dw2 & ACC_VIRTUAL_ADDR_RANGE_LO);
acc_queue->head = (acc_queue->head + ACC_MSG_LEN_DW) %
ACC_QUEUE_NUM_DW;
} else {
ret = -1;
}
@ -589,8 +594,6 @@ static void acc_queue_work_func(struct work_struct *w)
}
}
#define ACC_MSG_LEN_DW 4
static bool acc_queue_full(struct acc_queue *acc_queue)
{
lockdep_assert_held(&acc_queue->lock);