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Diffstat (limited to 'arch/sparc64/kernel/setup.c')
-rw-r--r--arch/sparc64/kernel/setup.c274
1 files changed, 0 insertions, 274 deletions
diff --git a/arch/sparc64/kernel/setup.c b/arch/sparc64/kernel/setup.c
index f36b257b2e4..ca75f3b26a3 100644
--- a/arch/sparc64/kernel/setup.c
+++ b/arch/sparc64/kernel/setup.c
@@ -64,12 +64,6 @@ struct screen_info screen_info = {
16 /* orig-video-points */
};
-/* Typing sync at the prom prompt calls the function pointed to by
- * the sync callback which I set to the following function.
- * This should sync all filesystems and return, for now it just
- * prints out pretty messages and returns.
- */
-
void (*prom_palette)(int);
void (*prom_keyboard)(void);
@@ -79,263 +73,6 @@ prom_console_write(struct console *con, const char *s, unsigned n)
prom_write(s, n);
}
-static struct console prom_console = {
- .name = "prom",
- .write = prom_console_write,
- .flags = CON_CONSDEV | CON_ENABLED,
- .index = -1,
-};
-
-#define PROM_TRUE -1
-#define PROM_FALSE 0
-
-/* Pretty sick eh? */
-int prom_callback(long *args)
-{
- struct console *cons, *saved_console = NULL;
- unsigned long flags;
- char *cmd;
- extern spinlock_t prom_entry_lock;
-
- if (!args)
- return -1;
- if (!(cmd = (char *)args[0]))
- return -1;
-
- /*
- * The callback can be invoked on the cpu that first dropped
- * into prom_cmdline after taking the serial interrupt, or on
- * a slave processor that was smp_captured() if the
- * administrator has done a switch-cpu inside obp. In either
- * case, the cpu is marked as in-interrupt. Drop IRQ locks.
- */
- irq_exit();
-
- /* XXX Revisit the locking here someday. This is a debugging
- * XXX feature so it isnt all that critical. -DaveM
- */
- local_irq_save(flags);
-
- spin_unlock(&prom_entry_lock);
- cons = console_drivers;
- while (cons) {
- unregister_console(cons);
- cons->flags &= ~(CON_PRINTBUFFER);
- cons->next = saved_console;
- saved_console = cons;
- cons = console_drivers;
- }
- register_console(&prom_console);
- if (!strcmp(cmd, "sync")) {
- prom_printf("PROM `%s' command...\n", cmd);
- show_free_areas();
- if (current->pid != 0) {
- local_irq_enable();
- sys_sync();
- local_irq_disable();
- }
- args[2] = 0;
- args[args[1] + 3] = -1;
- prom_printf("Returning to PROM\n");
- } else if (!strcmp(cmd, "va>tte-data")) {
- unsigned long ctx, va;
- unsigned long tte = 0;
- long res = PROM_FALSE;
-
- ctx = args[3];
- va = args[4];
- if (ctx) {
- /*
- * Find process owning ctx, lookup mapping.
- */
- struct task_struct *p;
- struct mm_struct *mm = NULL;
- pgd_t *pgdp;
- pud_t *pudp;
- pmd_t *pmdp;
- pte_t *ptep;
- pte_t pte;
-
- for_each_process(p) {
- mm = p->mm;
- if (CTX_NRBITS(mm->context) == ctx)
- break;
- }
- if (!mm ||
- CTX_NRBITS(mm->context) != ctx)
- goto done;
-
- pgdp = pgd_offset(mm, va);
- if (pgd_none(*pgdp))
- goto done;
- pudp = pud_offset(pgdp, va);
- if (pud_none(*pudp))
- goto done;
- pmdp = pmd_offset(pudp, va);
- if (pmd_none(*pmdp))
- goto done;
-
- /* Preemption implicitly disabled by virtue of
- * being called from inside OBP.
- */
- ptep = pte_offset_map(pmdp, va);
- pte = *ptep;
- if (pte_present(pte)) {
- tte = pte_val(pte);
- res = PROM_TRUE;
- }
- pte_unmap(ptep);
- goto done;
- }
-
- if ((va >= KERNBASE) && (va < (KERNBASE + (4 * 1024 * 1024)))) {
- if (tlb_type == spitfire) {
- extern unsigned long sparc64_kern_pri_context;
-
- /* Spitfire Errata #32 workaround */
- __asm__ __volatile__(
- "stxa %0, [%1] %2\n\t"
- "flush %%g6"
- : /* No outputs */
- : "r" (sparc64_kern_pri_context),
- "r" (PRIMARY_CONTEXT),
- "i" (ASI_DMMU));
- }
-
- /*
- * Locked down tlb entry.
- */
-
- if (tlb_type == spitfire) {
- tte = spitfire_get_dtlb_data(SPITFIRE_HIGHEST_LOCKED_TLBENT);
- res = PROM_TRUE;
- } else if (tlb_type == cheetah || tlb_type == cheetah_plus) {
- tte = cheetah_get_ldtlb_data(CHEETAH_HIGHEST_LOCKED_TLBENT);
- res = PROM_TRUE;
- }
- goto done;
- }
-
- if (va < PGDIR_SIZE) {
- /*
- * vmalloc or prom_inherited mapping.
- */
- pgd_t *pgdp;
- pud_t *pudp;
- pmd_t *pmdp;
- pte_t *ptep;
- pte_t pte;
- int error;
-
- if ((va >= LOW_OBP_ADDRESS) && (va < HI_OBP_ADDRESS)) {
- tte = prom_virt_to_phys(va, &error);
- if (!error)
- res = PROM_TRUE;
- goto done;
- }
- pgdp = pgd_offset_k(va);
- if (pgd_none(*pgdp))
- goto done;
- pudp = pud_offset(pgdp, va);
- if (pud_none(*pudp))
- goto done;
- pmdp = pmd_offset(pudp, va);
- if (pmd_none(*pmdp))
- goto done;
-
- /* Preemption implicitly disabled by virtue of
- * being called from inside OBP.
- */
- ptep = pte_offset_kernel(pmdp, va);
- pte = *ptep;
- if (pte_present(pte)) {
- tte = pte_val(pte);
- res = PROM_TRUE;
- }
- goto done;
- }
-
- if (va < PAGE_OFFSET) {
- /*
- * No mappings here.
- */
- goto done;
- }
-
- if (va & (1UL << 40)) {
- /*
- * I/O page.
- */
-
- tte = (__pa(va) & _PAGE_PADDR) |
- _PAGE_VALID | _PAGE_SZ4MB |
- _PAGE_E | _PAGE_P | _PAGE_W;
- res = PROM_TRUE;
- goto done;
- }
-
- /*
- * Normal page.
- */
- tte = (__pa(va) & _PAGE_PADDR) |
- _PAGE_VALID | _PAGE_SZ4MB |
- _PAGE_CP | _PAGE_CV | _PAGE_P | _PAGE_W;
- res = PROM_TRUE;
-
- done:
- if (res == PROM_TRUE) {
- args[2] = 3;
- args[args[1] + 3] = 0;
- args[args[1] + 4] = res;
- args[args[1] + 5] = tte;
- } else {
- args[2] = 2;
- args[args[1] + 3] = 0;
- args[args[1] + 4] = res;
- }
- } else if (!strcmp(cmd, ".soft1")) {
- unsigned long tte;
-
- tte = args[3];
- prom_printf("%lx:\"%s%s%s%s%s\" ",
- (tte & _PAGE_SOFT) >> 7,
- tte & _PAGE_MODIFIED ? "M" : "-",
- tte & _PAGE_ACCESSED ? "A" : "-",
- tte & _PAGE_READ ? "W" : "-",
- tte & _PAGE_WRITE ? "R" : "-",
- tte & _PAGE_PRESENT ? "P" : "-");
-
- args[2] = 2;
- args[args[1] + 3] = 0;
- args[args[1] + 4] = PROM_TRUE;
- } else if (!strcmp(cmd, ".soft2")) {
- unsigned long tte;
-
- tte = args[3];
- prom_printf("%lx ", (tte & 0x07FC000000000000UL) >> 50);
-
- args[2] = 2;
- args[args[1] + 3] = 0;
- args[args[1] + 4] = PROM_TRUE;
- } else {
- prom_printf("unknown PROM `%s' command...\n", cmd);
- }
- unregister_console(&prom_console);
- while (saved_console) {
- cons = saved_console;
- saved_console = cons->next;
- register_console(cons);
- }
- spin_lock(&prom_entry_lock);
- local_irq_restore(flags);
-
- /*
- * Restore in-interrupt status for a resume from obp.
- */
- irq_enter();
- return 0;
-}
-
unsigned int boot_flags = 0;
#define BOOTME_DEBUG 0x1
#define BOOTME_SINGLE 0x2
@@ -483,17 +220,6 @@ char reboot_command[COMMAND_LINE_SIZE];
static struct pt_regs fake_swapper_regs = { { 0, }, 0, 0, 0, 0 };
-void register_prom_callbacks(void)
-{
- prom_setcallback(prom_callback);
- prom_feval(": linux-va>tte-data 2 \" va>tte-data\" $callback drop ; "
- "' linux-va>tte-data to va>tte-data");
- prom_feval(": linux-.soft1 1 \" .soft1\" $callback 2drop ; "
- "' linux-.soft1 to .soft1");
- prom_feval(": linux-.soft2 1 \" .soft2\" $callback 2drop ; "
- "' linux-.soft2 to .soft2");
-}
-
static void __init per_cpu_patch(void)
{
#ifdef CONFIG_SMP
generated by cgit v1.2.3 (git 2.25.1) at 2024-08-07 23:31:45 +0000