/* Set PTEA register */ #ifdef CONFIG_X2TLB /* * For the extended mode TLB this is trivial, only the ESZ and * EPR bits need to be written out to PTEA, with the remainder of * the protection bits (with the exception of the compat-mode SZ * and PR bits, which are cleared) being written out in PTEL.
*/
__raw_writel(pte.pte_high, MMU_PTEA); #else if (cpu_data->flags & CPU_HAS_PTEA) { /* The last 3 bits and the first one of pteval contains * the PTEA timing control and space attribute bits
*/
__raw_writel(copy_ptea_attributes(pteval), MMU_PTEA);
} #endif
/* Set PTEL register */
pteval &= _PAGE_FLAGS_HARDWARE_MASK; /* drop software flags */ #ifdef CONFIG_CACHE_WRITETHROUGH
pteval |= _PAGE_WT; #endif /* conveniently, we want all the software flags to be 0 anyway */
__raw_writel(pteval, MMU_PTEL);
/* Load the TLB */ asmvolatile("ldtlb": /* no output */ : /* no input */ : "memory");
local_irq_restore(flags);
}
/* * NOTE: PTEH.ASID should be set to this MM * _AND_ we need to write ASID to the array. * * It would be simple if we didn't need to set PTEH.ASID...
*/
addr = MMU_UTLB_ADDRESS_ARRAY | MMU_PAGE_ASSOC_BIT;
data = page | asid; /* VALID bit is off */
jump_to_uncached();
__raw_writel(data, addr);
back_to_cached();
}
void local_flush_tlb_all(void)
{ unsignedlong flags, status; int i;
/* * Flush all the TLB.
*/
local_irq_save(flags);
jump_to_uncached();
status = __raw_readl(MMUCR);
status = ((status & MMUCR_URB) >> MMUCR_URB_SHIFT);
if (status == 0)
status = MMUCR_URB_NENTRIES;
for (i = 0; i < status; i++)
__raw_writel(0x0, MMU_UTLB_ADDRESS_ARRAY | (i << 8));
for (i = 0; i < 4; i++)
__raw_writel(0x0, MMU_ITLB_ADDRESS_ARRAY | (i << 8));
Die Informationen auf dieser Webseite wurden
nach bestem Wissen sorgfältig zusammengestellt. Es wird jedoch weder Vollständigkeit, noch Richtigkeit,
noch Qualität der bereit gestellten Informationen zugesichert.
Bemerkung:
Die farbliche Syntaxdarstellung und die Messung sind noch experimentell.