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Revert "soc: qcom: rpmh: Invalidate SLEEP and WAKE TCSes before flushing new data"

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This reverts commit 9e56b18ca5.

This is a preparation change for merging android-5.4.54 into
msm-5.4 branch. Revert this change to continue using existing
driver that is already supporting same functionality being
added in this change.

Change-Id: I32ecd526576d56f3b1be206298dd7eb414c23f58
Signed-off-by: Blagovest Kolenichev <bkolenichev@codeaurora.org>
This commit is contained in:
Lina Iyer 2020-07-29 17:36:56 -07:00 • committed by Blagovest Kolenichev
commit 29379006b1
1 changed files with 23 additions and 18 deletions
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41
drivers/soc/qcom/rpmh.c
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@ -317,6 +317,19 @@ static int flush_batch(struct rpmh_ctrlr *ctrlr)
return ret;
}
static void invalidate_batch(struct rpmh_ctrlr *ctrlr)
{
struct batch_cache_req *req, *tmp;
unsigned long flags;
spin_lock_irqsave(&ctrlr->cache_lock, flags);
list_for_each_entry_safe(req, tmp, &ctrlr->batch_cache, list)
kfree(req);
INIT_LIST_HEAD(&ctrlr->batch_cache);
ctrlr->dirty = true;
spin_unlock_irqrestore(&ctrlr->cache_lock, flags);
}
/**
* rpmh_write_batch: Write multiple sets of RPMH commands and wait for the
* batch to finish.
@ -456,13 +469,6 @@ int rpmh_flush(const struct device *dev)
return 0;
}
/* Invalidate the TCSes first to avoid stale data */
do {
ret = rpmh_rsc_invalidate(ctrlr_to_drv(ctrlr));
} while (ret == -EAGAIN);
if (ret)
return ret;
/* First flush the cached batch requests */
ret = flush_batch(ctrlr);
if (ret)
@ -494,25 +500,24 @@ int rpmh_flush(const struct device *dev)
EXPORT_SYMBOL(rpmh_flush);
/**
* rpmh_invalidate: Invalidate sleep and wake sets in batch_cache
* rpmh_invalidate: Invalidate all sleep and active sets
* sets.
*
* @dev: The device making the request
*
* Invalidate the sleep and wake values in batch_cache.
* Invalidate the sleep and active values in the TCS blocks.
*/
int rpmh_invalidate(const struct device *dev)
{
struct rpmh_ctrlr *ctrlr = get_rpmh_ctrlr(dev);
struct batch_cache_req *req, *tmp;
unsigned long flags;
int ret;
spin_lock_irqsave(&ctrlr->cache_lock, flags);
list_for_each_entry_safe(req, tmp, &ctrlr->batch_cache, list)
kfree(req);
INIT_LIST_HEAD(&ctrlr->batch_cache);
ctrlr->dirty = true;
spin_unlock_irqrestore(&ctrlr->cache_lock, flags);
invalidate_batch(ctrlr);
return 0;
do {
ret = rpmh_rsc_invalidate(ctrlr_to_drv(ctrlr));
} while (ret == -EAGAIN);
return ret;
}
EXPORT_SYMBOL(rpmh_invalidate);