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Use LOG2_ID_PAGE_SIZE again for the identity mapping in regions 6 & 7.

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Make the default translation size the same as the PBVM page size to
avoid inserting overlapping translations in the TC. That generally is
very bad.
This commit is contained in:
marcel 2013-11-01 01:32:01 +00:00
parent 12021c508b
commit 1615b77f79
3 changed files with 9 additions and 4 deletions
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4
sys/ia64/ia64/machdep.c
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@ -716,8 +716,8 @@ ia64_init(void)
* handlers. Here we just make sure that they have the largest
* possible page size to minimise TLB usage.
*/
ia64_set_rr(IA64_RR_BASE(6), (6 << 8) | (PAGE_SHIFT << 2));
ia64_set_rr(IA64_RR_BASE(7), (7 << 8) | (PAGE_SHIFT << 2));
ia64_set_rr(IA64_RR_BASE(6), (6 << 8) | (LOG2_ID_PAGE_SIZE << 2));
ia64_set_rr(IA64_RR_BASE(7), (7 << 8) | (LOG2_ID_PAGE_SIZE << 2));
ia64_srlz_d();
/* Initialize/setup physical memory datastructures */

4
sys/ia64/ia64/mp_machdep.c
View File

@ -208,8 +208,8 @@ ia64_ap_startup(void)
ia64_ap_state.as_trace = 0x100;
ia64_set_rr(IA64_RR_BASE(5), (5 << 8) | (PAGE_SHIFT << 2) | 1);
ia64_set_rr(IA64_RR_BASE(6), (6 << 8) | (PAGE_SHIFT << 2));
ia64_set_rr(IA64_RR_BASE(7), (7 << 8) | (PAGE_SHIFT << 2));
ia64_set_rr(IA64_RR_BASE(6), (6 << 8) | (LOG2_ID_PAGE_SIZE << 2));
ia64_set_rr(IA64_RR_BASE(7), (7 << 8) | (LOG2_ID_PAGE_SIZE << 2));
ia64_srlz_d();
pcpup = ia64_ap_state.as_pcpu;

5
sys/ia64/include/param.h
View File

@ -105,6 +105,11 @@
#endif
#define KSTACK_GUARD_PAGES 0 /* pages of kstack guard; 0 disables */
/* The default size of identity mappings in region 6 & 7. */
#ifndef LOG2_ID_PAGE_SIZE
#define LOG2_ID_PAGE_SIZE 16
#endif
/*
* Mach derived conversion macros
*/