diff options
| author | cinap_lenrek <cinap_lenrek@felloff.net> | 2022-01-16 19:25:11 +0000 |
|---|---|---|
| committer | cinap_lenrek <cinap_lenrek@felloff.net> | 2022-01-16 19:25:11 +0000 |
| commit | 6f9838a6a5b80e0253bdc8fb194ad6f15eb655f5 (patch) | |
| tree | b7b6770ef352dd40e389ef300f4e3495031d139e /sys/src/9/bcm64 | |
| parent | 6e64d30454f71ecda88dba1bd792e97509115d73 (diff) | |
kernel: make Page.txtflush into an array
To avoid a MAXMACH limit of 32 and make
txtflush into an array for the bitmap.
Provide portable macros for testing and clearing
the bits: needtxtflush(), donetxtflush().
On pc/pc64, define inittxtflush()/settxtflush()
as no-op macros, avoiding the storage overhead of
the txtflush array alltogether.
Diffstat (limited to 'sys/src/9/bcm64')
| -rw-r--r-- | sys/src/9/bcm64/mmu.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/sys/src/9/bcm64/mmu.c b/sys/src/9/bcm64/mmu.c index e619f7f36..636d265a5 100644 --- a/sys/src/9/bcm64/mmu.c +++ b/sys/src/9/bcm64/mmu.c @@ -460,11 +460,10 @@ putmmu(uintptr va, uintptr pa, Page *pg) flushasidva((uvlong)up->asid<<48 | va>>12); *pte = pa | PTEPAGE | PTEUSER | PTEPXN | PTENG | PTEAF | (((pa & PTEMA(7)) == PTECACHED)? PTESH(SHARE_INNER): PTESH(SHARE_OUTER)); - if(pg->txtflush & (1UL<<m->machno)){ - /* pio() sets PG_TXTFLUSH whenever a text pg has been written */ + if(needtxtflush(pg)){ cachedwbinvse(kmap(pg), BY2PG); cacheiinvse((void*)va, BY2PG); - pg->txtflush &= ~(1UL<<m->machno); + donetxtflush(pg); } splx(s); } |