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lib: sbi_tlb: Check tlb_range_flush_limit only once per request

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The tlb_update() callback is called for each destination hart.
Move the size check earlier, so it is executed only once.

Signed-off-by: Samuel Holland <samuel.holland@sifive.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
This commit is contained in:
Samuel Holland 2023-12-08 12:29:55 -08:00 • committed by Anup Patel
parent 6112d584d4
commit 35cba92655
1 changed files with 10 additions and 10 deletions
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20
lib/sbi/sbi_tlb.c
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@ -327,16 +327,6 @@ static int tlb_update(struct sbi_scratch *scratch,
struct sbi_tlb_info *tinfo = data;
u32 curr_hartid = current_hartid();
/*
* If address range to flush is too big then simply
* upgrade it to flush all because we can only flush
* 4KB at a time.
*/
if (tinfo->size > tlb_range_flush_limit) {
tinfo->start = 0;
tinfo->size = SBI_TLB_FLUSH_ALL;
}
/*
* If the request is to queue a tlb flush entry for itself
* then just do a local flush and return;
@ -385,6 +375,16 @@ int sbi_tlb_request(ulong hmask, ulong hbase, struct sbi_tlb_info *tinfo)
if (!tinfo->local_fn)
return SBI_EINVAL;
/*
* If address range to flush is too big then simply
* upgrade it to flush all because we can only flush
* 4KB at a time.
*/
if (tinfo->size > tlb_range_flush_limit) {
tinfo->start = 0;
tinfo->size = SBI_TLB_FLUSH_ALL;
}
tlb_pmu_incr_fw_ctr(tinfo);
return sbi_ipi_send_many(hmask, hbase, tlb_event, tinfo);