#include <asm/pgtable.h>
#include <asm/processor.h>
#include <asm/mca.h>
+#include <asm/tlbflush.h>
#define EFI_DEBUG 0
* a dedicated ITR for the PAL code.
*/
if ((vaddr & mask) == (KERNEL_START & mask)) {
- printk(KERN_INFO "%s: no need to install ITR for "
- "PAL code\n", __FUNCTION__);
+ printk(KERN_INFO "%s: no need to install ITR for PAL code\n",
+ __func__);
continue;
}
return __va(md->phys_addr);
}
printk(KERN_WARNING "%s: no PAL-code memory-descriptor found\n",
- __FUNCTION__);
+ __func__);
return NULL;
}
+
+static u8 __init palo_checksum(u8 *buffer, u32 length)
+{
+ u8 sum = 0;
+ u8 *end = buffer + length;
+
+ while (buffer < end)
+ sum = (u8) (sum + *(buffer++));
+
+ return sum;
+}
+
+/*
+ * Parse and handle PALO table which is published at:
+ * http://www.dig64.org/home/DIG64_PALO_R1_0.pdf
+ */
+static void __init handle_palo(unsigned long palo_phys)
+{
+ struct palo_table *palo = __va(palo_phys);
+ u8 checksum;
+
+ if (strncmp(palo->signature, PALO_SIG, sizeof(PALO_SIG) - 1)) {
+ printk(KERN_INFO "PALO signature incorrect.\n");
+ return;
+ }
+
+ checksum = palo_checksum((u8 *)palo, palo->length);
+ if (checksum) {
+ printk(KERN_INFO "PALO checksum incorrect.\n");
+ return;
+ }
+
+ setup_ptcg_sem(palo->max_tlb_purges, NPTCG_FROM_PALO);
+}
+
void
efi_map_pal_code (void)
{
pte_val(pfn_pte(__pa(pal_vaddr) >> PAGE_SHIFT, PAGE_KERNEL)),
IA64_GRANULE_SHIFT);
ia64_set_psr(psr); /* restore psr */
- ia64_srlz_i();
}
void __init
u64 efi_desc_size;
char *cp, vendor[100] = "unknown";
int i;
+ unsigned long palo_phys;
/*
* It's too early to be able to use the standard kernel command line
efi.hcdp = EFI_INVALID_TABLE_ADDR;
efi.uga = EFI_INVALID_TABLE_ADDR;
+ palo_phys = EFI_INVALID_TABLE_ADDR;
+
for (i = 0; i < (int) efi.systab->nr_tables; i++) {
if (efi_guidcmp(config_tables[i].guid, MPS_TABLE_GUID) == 0) {
efi.mps = config_tables[i].table;
} else if (efi_guidcmp(config_tables[i].guid, HCDP_TABLE_GUID) == 0) {
efi.hcdp = config_tables[i].table;
printk(" HCDP=0x%lx", config_tables[i].table);
+ } else if (efi_guidcmp(config_tables[i].guid,
+ PROCESSOR_ABSTRACTION_LAYER_OVERWRITE_GUID) == 0) {
+ palo_phys = config_tables[i].table;
+ printk(" PALO=0x%lx", config_tables[i].table);
}
}
printk("\n");
+ if (palo_phys != EFI_INVALID_TABLE_ADDR)
+ handle_palo(palo_phys);
+
runtime = __va(efi.systab->runtime);
efi.get_time = phys_get_time;
efi.set_time = phys_set_time;
for (i = 0, p = efi_map_start; p < efi_map_end;
++i, p += efi_desc_size)
{
+ const char *unit;
+ unsigned long size;
+
md = p;
- printk("mem%02u: type=%u, attr=0x%lx, "
- "range=[0x%016lx-0x%016lx) (%luMB)\n",
+ size = md->num_pages << EFI_PAGE_SHIFT;
+
+ if ((size >> 40) > 0) {
+ size >>= 40;
+ unit = "TB";
+ } else if ((size >> 30) > 0) {
+ size >>= 30;
+ unit = "GB";
+ } else if ((size >> 20) > 0) {
+ size >>= 20;
+ unit = "MB";
+ } else {
+ size >>= 10;
+ unit = "KB";
+ }
+
+ printk("mem%02d: type=%2u, attr=0x%016lx, "
+ "range=[0x%016lx-0x%016lx) (%4lu%s)\n",
i, md->type, md->attribute, md->phys_addr,
- md->phys_addr + efi_md_size(md),
- md->num_pages >> (20 - EFI_PAGE_SHIFT));
+ md->phys_addr + efi_md_size(md), size, unit);
}
}
#endif
if (!md || (md->attribute & ~EFI_MEMORY_RUNTIME) != attr)
return 0;
} while (md);
- return 0;
+ return 0; /* never reached */
}
u64
if (!md || md->attribute != attr)
return 0;
} while (md);
- return 0;
+ return 0; /* never reached */
}
EXPORT_SYMBOL(kern_mem_attribute);