patch_kernel_fault_handler();
}
-volatile unsigned long *sun4c_memerr_reg = NULL;
+volatile unsigned long __iomem *sun4c_memerr_reg = NULL;
void __init sun4c_probe_memerr_reg(void)
{
node = prom_searchsiblings(prom_root_node, "memory-error");
if (!node)
return;
- prom_getproperty(node, "reg", (char *)regs, sizeof(regs));
+ if (prom_getproperty(node, "reg", (char *)regs, sizeof(regs)) <= 0)
+ return;
/* hmm I think regs[0].which_io is zero here anyways */
sun4c_memerr_reg = ioremap(regs[0].phys_addr, regs[0].reg_size);
}
static inline void sun4c_mapioaddr(unsigned long physaddr, unsigned long virt_addr)
{
- unsigned long page_entry;
+ unsigned long page_entry, pg_iobits;
+
+ pg_iobits = _SUN4C_PAGE_PRESENT | _SUN4C_READABLE | _SUN4C_WRITEABLE |
+ _SUN4C_PAGE_IO | _SUN4C_PAGE_NOCACHE;
page_entry = ((physaddr >> PAGE_SHIFT) & SUN4C_PFN_MASK);
page_entry |= ((pg_iobits | _SUN4C_PAGE_PRIV) & ~(_SUN4C_PAGE_PRESENT));
}
static void sun4c_pte_clear(pte_t *ptep) { *ptep = __pte(0); }
+static int sun4c_pte_read(pte_t pte)
+{
+ return (pte_val(pte) & _SUN4C_PAGE_READ);
+}
+
static int sun4c_pmd_bad(pmd_t pmd)
{
return (((pmd_val(pmd) & ~PAGE_MASK) != PGD_TABLE) ||
free_area_init_node(0, &contig_page_data, zones_size,
pfn_base, zholes_size);
- mem_map = contig_page_data.node_mem_map;
}
cnt = 0;
printk("SUN4C: %d mmu entries for the kernel\n", cnt);
}
+static pgprot_t sun4c_pgprot_noncached(pgprot_t prot)
+{
+ prot |= __pgprot(_SUN4C_PAGE_IO | _SUN4C_PAGE_NOCACHE);
+
+ return prot;
+}
+
/* Load up routines and constants for sun4c mmu */
void __init ld_mmu_sun4c(void)
{
BTFIXUPSET_INT(page_readonly, pgprot_val(SUN4C_PAGE_READONLY));
BTFIXUPSET_INT(page_kernel, pgprot_val(SUN4C_PAGE_KERNEL));
page_kernel = pgprot_val(SUN4C_PAGE_KERNEL);
- pg_iobits = _SUN4C_PAGE_PRESENT | _SUN4C_READABLE | _SUN4C_WRITEABLE |
- _SUN4C_PAGE_IO | _SUN4C_PAGE_NOCACHE;
/* Functions */
+ BTFIXUPSET_CALL(pgprot_noncached, sun4c_pgprot_noncached, BTFIXUPCALL_NORM);
BTFIXUPSET_CALL(___xchg32, ___xchg32_sun4c, BTFIXUPCALL_NORM);
BTFIXUPSET_CALL(do_check_pgt_cache, sun4c_check_pgt_cache, BTFIXUPCALL_NORM);
BTFIXUPSET_CALL(pte_present, sun4c_pte_present, BTFIXUPCALL_NORM);
BTFIXUPSET_CALL(pte_clear, sun4c_pte_clear, BTFIXUPCALL_STG0O0);
+ BTFIXUPSET_CALL(pte_read, sun4c_pte_read, BTFIXUPCALL_NORM);
BTFIXUPSET_CALL(pmd_bad, sun4c_pmd_bad, BTFIXUPCALL_NORM);
BTFIXUPSET_CALL(pmd_present, sun4c_pmd_present, BTFIXUPCALL_NORM);