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/bcm/mmu.c | |
| 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/bcm/mmu.c')
| -rw-r--r-- | sys/src/9/bcm/mmu.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/sys/src/9/bcm/mmu.c b/sys/src/9/bcm/mmu.c index 655d847ae..7a1e7bc02 100644 --- a/sys/src/9/bcm/mmu.c +++ b/sys/src/9/bcm/mmu.c @@ -254,11 +254,10 @@ putmmu(uintptr va, uintptr pa, Page* page) /* clear out the current entry */ mmuinvalidateaddr(PPN(va)); - if((page->txtflush & (1<<m->machno)) != 0){ - /* pio() sets PG_TXTFLUSH whenever a text pg has been written */ + if(needtxtflush(page)){ cachedwbse((void*)(page->pa|KZERO), BY2PG); cacheiinvse((void*)page->va, BY2PG); - page->txtflush &= ~(1<<m->machno); + donetxtflush(page); } //checkmmu(va, PPN(pa)); splx(s); |