#include <asm/smp.h>
#include <linux/user.h>
#include <linux/a.out.h>
-#include <linux/tty.h>
+#include <linux/screen_info.h>
#include <linux/delay.h>
-#include <linux/config.h>
#include <linux/fs.h>
#include <linux/seq_file.h>
#include <linux/syscalls.h>
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);
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)))) {
- 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);
- 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
/* Exported for mm/init.c:paging_init. */
unsigned long cmdline_memory_size = 0;
{
}
-int obp_system_intr(void)
-{
- if (boot_flags & BOOTME_DEBUG) {
- printk("OBP: system interrupted\n");
- prom_halt();
- return 1;
- }
- return 0;
-}
-
/*
* Process kernel command line switches that are specific to the
* SPARC or that require special low-level processing.
boot_flags |= BOOTME_DEBUG;
break;
case 's':
- boot_flags |= BOOTME_SINGLE;
break;
case 'h':
prom_printf("boot_flags_init: Halt!\n");
static struct pt_regs fake_swapper_regs = { { 0, }, 0, 0, 0, 0 };
-void register_prom_callbacks(void)
+void __init per_cpu_patch(void)
+{
+ struct cpuid_patch_entry *p;
+ unsigned long ver;
+ int is_jbus;
+
+ if (tlb_type == spitfire && !this_is_starfire)
+ return;
+
+ is_jbus = 0;
+ if (tlb_type != hypervisor) {
+ __asm__ ("rdpr %%ver, %0" : "=r" (ver));
+ is_jbus = ((ver >> 32UL) == __JALAPENO_ID ||
+ (ver >> 32UL) == __SERRANO_ID);
+ }
+
+ p = &__cpuid_patch;
+ while (p < &__cpuid_patch_end) {
+ unsigned long addr = p->addr;
+ unsigned int *insns;
+
+ switch (tlb_type) {
+ case spitfire:
+ insns = &p->starfire[0];
+ break;
+ case cheetah:
+ case cheetah_plus:
+ if (is_jbus)
+ insns = &p->cheetah_jbus[0];
+ else
+ insns = &p->cheetah_safari[0];
+ break;
+ case hypervisor:
+ insns = &p->sun4v[0];
+ break;
+ default:
+ prom_printf("Unknown cpu type, halting.\n");
+ prom_halt();
+ };
+
+ *(unsigned int *) (addr + 0) = insns[0];
+ wmb();
+ __asm__ __volatile__("flush %0" : : "r" (addr + 0));
+
+ *(unsigned int *) (addr + 4) = insns[1];
+ wmb();
+ __asm__ __volatile__("flush %0" : : "r" (addr + 4));
+
+ *(unsigned int *) (addr + 8) = insns[2];
+ wmb();
+ __asm__ __volatile__("flush %0" : : "r" (addr + 8));
+
+ *(unsigned int *) (addr + 12) = insns[3];
+ wmb();
+ __asm__ __volatile__("flush %0" : : "r" (addr + 12));
+
+ p++;
+ }
+}
+
+void __init sun4v_patch(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");
+ struct sun4v_1insn_patch_entry *p1;
+ struct sun4v_2insn_patch_entry *p2;
+
+ if (tlb_type != hypervisor)
+ return;
+
+ p1 = &__sun4v_1insn_patch;
+ while (p1 < &__sun4v_1insn_patch_end) {
+ unsigned long addr = p1->addr;
+
+ *(unsigned int *) (addr + 0) = p1->insn;
+ wmb();
+ __asm__ __volatile__("flush %0" : : "r" (addr + 0));
+
+ p1++;
+ }
+
+ p2 = &__sun4v_2insn_patch;
+ while (p2 < &__sun4v_2insn_patch_end) {
+ unsigned long addr = p2->addr;
+
+ *(unsigned int *) (addr + 0) = p2->insns[0];
+ wmb();
+ __asm__ __volatile__("flush %0" : : "r" (addr + 0));
+
+ *(unsigned int *) (addr + 4) = p2->insns[1];
+ wmb();
+ __asm__ __volatile__("flush %0" : : "r" (addr + 4));
+
+ p2++;
+ }
}
+#ifdef CONFIG_SMP
+void __init boot_cpu_id_too_large(int cpu)
+{
+ prom_printf("Serious problem, boot cpu id (%d) >= NR_CPUS (%d)\n",
+ cpu, NR_CPUS);
+ prom_halt();
+}
+#endif
+
void __init setup_arch(char **cmdline_p)
{
/* Initialize PROM console and command line. */
*cmdline_p = prom_getbootargs();
strcpy(saved_command_line, *cmdline_p);
- printk("ARCH: SUN4U\n");
+ if (tlb_type == hypervisor)
+ printk("ARCH: SUN4V\n");
+ else
+ printk("ARCH: SUN4U\n");
#ifdef CONFIG_DUMMY_CONSOLE
conswitchp = &dummy_con;
conswitchp = &prom_con;
#endif
- /* Work out if we are starfire early on */
- check_if_starfire();
-
boot_flags_init(*cmdline_p);
idprom_init();
if (!root_flags)
root_mountflags &= ~MS_RDONLY;
ROOT_DEV = old_decode_dev(root_dev);
-#ifdef CONFIG_BLK_DEV_INITRD
+#ifdef CONFIG_BLK_DEV_RAM
rd_image_start = ram_flags & RAMDISK_IMAGE_START_MASK;
rd_prompt = ((ram_flags & RAMDISK_PROMPT_FLAG) != 0);
rd_doload = ((ram_flags & RAMDISK_LOAD_FLAG) != 0);
}
#endif
- smp_setup_cpu_possible_map();
+ /* Get boot processor trap_block[] setup. */
+ init_cur_cpu_trap(current_thread_info());
paging_init();
+
+ smp_setup_cpu_possible_map();
}
static int __init set_preferred_console(void)
serial_console = 2;
} else if (idev == PROMDEV_IRSC && odev == PROMDEV_ORSC) {
serial_console = 3;
+ } else if (idev == PROMDEV_IVCONS && odev == PROMDEV_OVCONS) {
+ /* sunhv_console_init() doesn't check the serial_console
+ * value anyways...
+ */
+ serial_console = 4;
+ return add_preferred_console("ttyHV", 0, NULL);
} else {
prom_printf("Inconsistent console: "
"input %d, output %d\n",
seq_printf(m,
"cpu\t\t: %s\n"
"fpu\t\t: %s\n"
- "promlib\t\t: Version 3 Revision %d\n"
- "prom\t\t: %d.%d.%d\n"
- "type\t\t: sun4u\n"
+ "prom\t\t: %s\n"
+ "type\t\t: %s\n"
"ncpus probed\t: %d\n"
"ncpus active\t: %d\n"
"D$ parity tl1\t: %u\n"
,
sparc_cpu_type,
sparc_fpu_type,
- prom_rev,
- prom_prev >> 16,
- (prom_prev >> 8) & 0xff,
- prom_prev & 0xff,
+ prom_version,
+ ((tlb_type == hypervisor) ?
+ "sun4v" :
+ "sun4u"),
ncpus_probed,
num_online_cpus(),
dcache_parity_tl1_occurred,
while (!cpu_find_by_instance(ncpus_probed, NULL, NULL))
ncpus_probed++;
- for (i = 0; i < NR_CPUS; i++) {
- if (cpu_possible(i)) {
- struct cpu *p = kmalloc(sizeof(*p), GFP_KERNEL);
-
- if (p) {
- memset(p, 0, sizeof(*p));
- register_cpu(p, i, NULL);
- err = 0;
- }
+ for_each_possible_cpu(i) {
+ struct cpu *p = kzalloc(sizeof(*p), GFP_KERNEL);
+ if (p) {
+ register_cpu(p, i);
+ err = 0;
}
}
git://git.onelab.eu / linux-2.6.git / blobdiff