[SPARC64]: Move phys_base, kern_{base,size}, and sp_banks[] init to paging_init
Also, move prom_probe_memory() into arch/sparc64/mm/init.c Signed-off-by: David S. Miller <davem@davemloft.net>
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801ab3c731
commit
0836a0eb40
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@ -464,8 +464,6 @@ static void __init boot_flags_init(char *commands)
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}
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}
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extern int prom_probe_memory(void);
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extern unsigned long start, end;
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extern void panic_setup(char *, int *);
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extern unsigned short root_flags;
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@ -494,8 +492,6 @@ void register_prom_callbacks(void)
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void __init setup_arch(char **cmdline_p)
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{
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int i;
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/* Initialize PROM console and command line. */
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*cmdline_p = prom_getbootargs();
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strcpy(saved_command_line, *cmdline_p);
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@ -514,21 +510,6 @@ void __init setup_arch(char **cmdline_p)
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boot_flags_init(*cmdline_p);
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idprom_init();
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(void) prom_probe_memory();
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phys_base = 0xffffffffffffffffUL;
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for (i = 0; sp_banks[i].num_bytes != 0; i++) {
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unsigned long top;
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if (sp_banks[i].base_addr < phys_base)
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phys_base = sp_banks[i].base_addr;
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top = sp_banks[i].base_addr +
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sp_banks[i].num_bytes;
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}
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pfn_base = phys_base >> PAGE_SHIFT;
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kern_base = (prom_boot_mapping_phys_low >> 22UL) << 22UL;
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kern_size = (unsigned long)&_end - (unsigned long)KERNBASE;
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if (!root_flags)
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root_mountflags &= ~MS_RDONLY;
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@ -71,53 +71,6 @@ void set_brkpt(unsigned long addr, unsigned char mask, int flags, int mode)
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: "memory");
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}
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/* Nice, simple, prom library does all the sweating for us. ;) */
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unsigned long __init prom_probe_memory (void)
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{
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register struct linux_mlist_p1275 *mlist;
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register unsigned long bytes, base_paddr, tally;
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register int i;
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i = 0;
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mlist = *prom_meminfo()->p1275_available;
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bytes = tally = mlist->num_bytes;
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base_paddr = mlist->start_adr;
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sp_banks[0].base_addr = base_paddr;
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sp_banks[0].num_bytes = bytes;
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while (mlist->theres_more != (void *) 0) {
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i++;
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mlist = mlist->theres_more;
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bytes = mlist->num_bytes;
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tally += bytes;
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if (i >= SPARC_PHYS_BANKS-1) {
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printk ("The machine has more banks than "
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"this kernel can support\n"
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"Increase the SPARC_PHYS_BANKS "
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"setting (currently %d)\n",
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SPARC_PHYS_BANKS);
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i = SPARC_PHYS_BANKS-1;
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break;
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}
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sp_banks[i].base_addr = mlist->start_adr;
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sp_banks[i].num_bytes = mlist->num_bytes;
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}
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i++;
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sp_banks[i].base_addr = 0xdeadbeefbeefdeadUL;
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sp_banks[i].num_bytes = 0;
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/* Now mask all bank sizes on a page boundary, it is all we can
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* use anyways.
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*/
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for (i = 0; sp_banks[i].num_bytes != 0; i++)
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sp_banks[i].num_bytes &= PAGE_MASK;
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return tally;
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}
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static void __kprobes unhandled_fault(unsigned long address,
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struct task_struct *tsk,
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struct pt_regs *regs)
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@ -1425,6 +1425,50 @@ void kernel_map_pages(struct page *page, int numpages, int enable)
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}
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#endif
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static void __init prom_probe_memory(void)
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{
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struct linux_mlist_p1275 *mlist;
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unsigned long bytes, base_paddr, tally;
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int i;
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i = 0;
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mlist = *prom_meminfo()->p1275_available;
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bytes = tally = mlist->num_bytes;
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base_paddr = mlist->start_adr;
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sp_banks[0].base_addr = base_paddr;
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sp_banks[0].num_bytes = bytes;
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while (mlist->theres_more != (void *) 0) {
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i++;
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mlist = mlist->theres_more;
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bytes = mlist->num_bytes;
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tally += bytes;
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if (i >= SPARC_PHYS_BANKS-1) {
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printk ("The machine has more banks than "
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"this kernel can support\n"
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"Increase the SPARC_PHYS_BANKS "
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"setting (currently %d)\n",
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SPARC_PHYS_BANKS);
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i = SPARC_PHYS_BANKS-1;
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break;
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}
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sp_banks[i].base_addr = mlist->start_adr;
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sp_banks[i].num_bytes = mlist->num_bytes;
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}
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i++;
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sp_banks[i].base_addr = 0xdeadbeefbeefdeadUL;
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sp_banks[i].num_bytes = 0;
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/* Now mask all bank sizes on a page boundary, it is all we can
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* use anyways.
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*/
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for (i = 0; sp_banks[i].num_bytes != 0; i++)
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sp_banks[i].num_bytes &= PAGE_MASK;
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}
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/* paging_init() sets up the page tables */
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extern void cheetah_ecache_flush_init(void);
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@ -1435,7 +1479,23 @@ pgd_t swapper_pg_dir[2048];
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void __init paging_init(void)
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{
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unsigned long end_pfn, pages_avail, shift;
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unsigned long real_end;
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unsigned long real_end, i;
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prom_probe_memory();
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phys_base = 0xffffffffffffffffUL;
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for (i = 0; sp_banks[i].num_bytes != 0; i++) {
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unsigned long top;
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if (sp_banks[i].base_addr < phys_base)
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phys_base = sp_banks[i].base_addr;
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top = sp_banks[i].base_addr +
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sp_banks[i].num_bytes;
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}
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pfn_base = phys_base >> PAGE_SHIFT;
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kern_base = (prom_boot_mapping_phys_low >> 22UL) << 22UL;
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kern_size = (unsigned long)&_end - (unsigned long)KERNBASE;
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set_bit(0, mmu_context_bmap);
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