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Folks...

On my CP1500 (diskless, with only 64M of RAM), the follow patch
is required in order for my system to make it through a GCC 3.3
"make bootstrap".

I know that, in theory, a dcache flush shouldn't be necessary in
pmap_clear_modify(), since the UltraSPARC cache is write-though.

However, emperically, it's necessary.  Anyone have any bright
ideas? :-)

-- 
        -- Jason R. Thorpe <thorpej@wasabisystems.com>

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Index: pmap.c
===================================================================
RCS file: /cvsroot/syssrc/sys/arch/sparc64/sparc64/pmap.c,v
retrieving revision 1.130
diff -c -r1.130 pmap.c
*** pmap.c	2002/11/11 10:15:46	1.130
--- pmap.c	2002/11/23 21:50:00
***************
*** 2578,2583 ****
--- 2578,2584 ----
  pmap_clear_modify(pg)
  	struct vm_page *pg;
  {
+ 	paddr_t pa = VM_PAGE_TO_PHYS(pg);
  	pv_entry_t pv;
  	int i, changed = 0;
  #ifdef DEBUG
***************
*** 2604,2610 ****
  		Debugger();
  	}
  #endif
! 	if (pv->pv_pmap != NULL)
  		for (; pv; pv = pv->pv_next) {
  			int64_t data;
  			struct pmap *pmap = pv->pv_pmap;
--- 2605,2611 ----
  		Debugger();
  	}
  #endif
! 	if (pv->pv_pmap != NULL) {
  		for (; pv; pv = pv->pv_next) {
  			int64_t data;
  			struct pmap *pmap = pv->pv_pmap;
***************
*** 2639,2644 ****
--- 2640,2647 ----
  			pv->pv_va &= ~(PV_MOD);
  			simple_unlock(&pmap->pm_lock);
  		}
+ 	}
+ 	dcache_flush_page(pa);
  	pv_check();
  #ifdef DEBUG
  	if (pmap_is_modified(pg)) {

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