Commit e393e2e9 authored by Kumar Gala's avatar Kumar Gala
Browse files

85xx: Fix addrmap to include memory



When we init the addrmap based on the TLB we will not end up getting
the TLB that covers memory if we are using SPD.  The reason is we
haven't relocated at the point that we setup the memory TLB and thus it
will not get setup in the addrmap.

Instead we can just walk over the TLB array after we've relocated and
see all the TLBs that have been set and use that information to populate
the initial addrmap.  By doing this we insure that we get the TLB
entries that cover memory.
Signed-off-by: default avatarKumar Gala <galak@kernel.crashing.org>
parent 7dedefdf
......@@ -110,15 +110,31 @@ void init_tlbs(void)
void init_addr_map(void)
{
int i;
unsigned int max_cam = (mfspr(SPRN_TLB1CFG) >> 16) & 0xff;
for (i = 0; i < num_tlb_entries; i++) {
if (tlb_table[i].tlb == 0)
/* walk all the entries */
for (i = 0; i < max_cam; i++) {
unsigned long epn;
u32 tsize, _mas1;
phys_addr_t rpn;
mtspr(MAS0, FSL_BOOKE_MAS0(1, i, 0));
asm volatile("tlbre;isync");
_mas1 = mfspr(MAS1);
/* if the entry isn't valid skip it */
if (!(_mas1 & MAS1_VALID))
continue;
addrmap_set_entry(tlb_table[i].epn,
tlb_table[i].rpn,
(1UL << ((tlb_table[i].tsize * 2) + 10)),
tlb_table[i].esel);
tsize = (_mas1 >> 8) & 0xf;
epn = mfspr(MAS2) & MAS2_EPN;
rpn = mfspr(MAS3) & MAS3_RPN;
#ifdef CONFIG_ENABLE_36BIT_PHYS
rpn |= ((phys_addr_t)mfspr(MAS7)) << 32;
#endif
addrmap_set_entry(epn, rpn, (1UL << ((tsize * 2) + 10)), i);
}
return ;
......
Markdown is supported
0% or .
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment