void mem_initialize(void)
{
u32 cr;
u32 cookie = irq_kill();
gecko_printf("MEM: cleaning up\n");
_ic_inval();
_dc_inval();
_tlb_inval();
gecko_printf("MEM: unprotecting memory\n");
mem_protect(0,NULL,NULL);
gecko_printf("MEM: mapping sections\n");
memset32(__page_table, 0, 16384);
map_section(0x000, 0x000, 0x018, WRITEBACK_CACHE | DOMAIN(0) | AP_RWUSER);
map_section(0x100, 0x100, 0x040, WRITEBACK_CACHE | DOMAIN(0) | AP_RWUSER);
map_section(0x0d0, 0x0d0, 0x001, NONBUFFERABLE | DOMAIN(0) | AP_RWUSER);
map_section(0x0d8, 0x0d8, 0x001, NONBUFFERABLE | DOMAIN(0) | AP_RWUSER);
map_section(0xfff, 0xfff, 0x001, WRITEBACK_CACHE | DOMAIN(0) | AP_RWUSER);
set_dacr(0xFFFFFFFF); //manager access for all domains, ignore AP
set_ttbr((u32)__page_table); //configure translation table
_drain_write_buffer();
cr = get_cr();
#ifndef NO_CACHES
gecko_printf("MEM: enabling caches\n");
cr |= CR_DCACHE | CR_ICACHE;
set_cr(cr);
gecko_printf("MEM: enabling MMU\n");
cr |= CR_MMU;
set_cr(cr);
#endif
gecko_printf("MEM: init done\n");
irq_restore(cookie);
}
/* cpd_deallocate_domain: Insures all CPD entries owned by 'domain_p' are
* removed from CPD and the domain is deallocated.
* Assumptions:
* - domain_p != NULL.
* - domain_p->region_p != NULL;
* - TLBs coherent, ie no TLB entries tagged with this domain.
* Notes:
* - Should domain and region pointer updates be atomic?
*/
void
cpd_deallocate_domain(struct domain_struct* domain_p)
{
int i;
pmd_t* cpd_p = pmd_offset(pgd_offset_k(0), 0); /* Get CPD Address */
struct cpd_struct* cpd_stat_p;
//printk("** cpd_deallocate_domain: %d **\n", domain_p->number);
/* Loop through CPD entries used by this domain */
for (cpd_stat_p = domain_p->cpd_head; cpd_stat_p != NULL;
cpd_stat_p = cpd_stat_p->cpd_next) {
i = STATS_P_TO_INDEX(cpd_stat_p);
/* Update CPD */
cpu_set_pmd(cpd_p + i, __pmd(0));
/* Update domain_p */
domain_p->cpd_count--;
}
/* Remove deallocate domain from address-space context */
domain_p->cpd_head = NULL;
domain_p->region_p->domain_p = NULL;
domain_p->region_p = NULL;
#if LAZY_DISABLE
/* Update the domain clock since we deallocated a domain */
domain_clock++;
#endif
//dump_cpd(1);
set_dacr(current->thread.dacr);
}
