diff options
Diffstat (limited to 'arch/ppc/cpu-85xx/tlb.c')
| -rw-r--r-- | arch/ppc/cpu-85xx/tlb.c | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/arch/ppc/cpu-85xx/tlb.c b/arch/ppc/cpu-85xx/tlb.c index a2739d000c..3a5b413627 100644 --- a/arch/ppc/cpu-85xx/tlb.c +++ b/arch/ppc/cpu-85xx/tlb.c @@ -50,7 +50,22 @@ void e500_init_tlbs(void) return ; } -static int e500_find_free_tlbcam(void) +void e500_read_tlbcam_entry(int idx, u32 *valid, u32 *tsize, + unsigned long *epn, phys_addr_t *rpn) +{ + u32 _mas1; + + mtspr(MAS0, FSL_BOOKE_MAS0(1, idx, 0)); + asm volatile("tlbre;isync"); + _mas1 = mfspr(MAS1); + + *valid = (_mas1 & MAS1_VALID); + *tsize = (_mas1 >> 7) & 0x1f; + *epn = mfspr(MAS2) & MAS2_EPN; + *rpn = mfspr(MAS3) & MAS3_RPN; +} + +int e500_find_free_tlbcam(void) { int ix; u32 _mas1; |