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* Read parameters for ptc.e instruction from PAL Code.

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* Add pmap_unmapdev().
This commit is contained in:
dfr 2001-09-29 11:41:23 +00:00
parent 6eb86189c7
commit b7fde43180
1 changed files with 42 additions and 10 deletions
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52
sys/ia64/ia64/pmap.c
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@ -118,6 +118,7 @@
#include <sys/user.h>
#include <machine/pal.h>
#include <machine/md_var.h>
MALLOC_DEFINE(M_PMAP, "PMAP", "PMAP Structures");
@ -204,11 +205,11 @@ vm_offset_t kernel_vm_end;
/*
* Values for ptc.e. XXX values for SKI.
*/
static u_int64_t pmap_pte_e_base = 0x100000000;
static u_int64_t pmap_pte_e_count1 = 3;
static u_int64_t pmap_pte_e_count2 = 2;
static u_int64_t pmap_pte_e_stride1 = 0x2000;
static u_int64_t pmap_pte_e_stride2 = 0x100000000;
static u_int64_t pmap_ptc_e_base = 0x100000000;
static u_int64_t pmap_ptc_e_count1 = 3;
static u_int64_t pmap_ptc_e_count2 = 2;
static u_int64_t pmap_ptc_e_stride1 = 0x2000;
static u_int64_t pmap_ptc_e_stride2 = 0x100000000;
/*
* Data for the RID allocator
@ -270,6 +271,28 @@ void
pmap_bootstrap()
{
int i;
struct ia64_pal_result res;
/*
* Query the PAL Code to find the loop parameters for the
* ptc.e instruction.
*/
res = ia64_call_pal_static(PAL_PTCE_INFO, 0, 0, 0);
if (res.pal_status != 0)
panic("Can't configure ptc.e parameters");
pmap_ptc_e_base = res.pal_result[0];
pmap_ptc_e_count1 = res.pal_result[1] >> 32;
pmap_ptc_e_count2 = res.pal_result[1] & ((1L<<32) - 1);
pmap_ptc_e_stride1 = res.pal_result[2] >> 32;
pmap_ptc_e_stride2 = res.pal_result[2] & ((1L<<32) - 1);
if (bootverbose)
printf("ptc.e base=0x%lx, count1=%ld, count2=%ld, "
"stride1=0x%lx, stride2=0x%lx\n",
pmap_ptc_e_base,
pmap_ptc_e_count1,
pmap_ptc_e_count2,
pmap_ptc_e_stride1,
pmap_ptc_e_stride2);
/*
* Setup RIDs. We use the bits above pmap_ridbits for a
@ -420,13 +443,13 @@ pmap_invalidate_all(pmap_t pmap)
("invalidating TLB for non-current pmap"));
psr = critical_enter();
addr = pmap_pte_e_base;
for (i = 0; i < pmap_pte_e_count1; i++) {
for (j = 0; j < pmap_pte_e_count2; j++) {
addr = pmap_ptc_e_base;
for (i = 0; i < pmap_ptc_e_count1; i++) {
for (j = 0; j < pmap_ptc_e_count2; j++) {
ia64_ptc_e(addr);
addr += pmap_pte_e_stride2;
addr += pmap_ptc_e_stride2;
}
addr += pmap_pte_e_stride1;
addr += pmap_ptc_e_stride1;
}
critical_exit(psr);
}
@ -2151,6 +2174,15 @@ pmap_mapdev(pa, size)
return (void*) IA64_PHYS_TO_RR6(pa);
}
/*
* 'Unmap' a range mapped by pmap_mapdev().
*/
void
pmap_unmapdev(vm_offset_t va, vm_size_t size)
{
return;
}
/*
* perform the pmap work for mincore
*/