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-rw-r--r--sys/boot/ia64/common/exec.c268
1 files changed, 0 insertions, 268 deletions
diff --git a/sys/boot/ia64/common/exec.c b/sys/boot/ia64/common/exec.c
deleted file mode 100644
index b721f97..0000000
--- a/sys/boot/ia64/common/exec.c
+++ /dev/null
@@ -1,268 +0,0 @@
-/*-
- * Copyright (c) 2006 Marcel Moolenaar
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
- * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
-#include <stand.h>
-#include <string.h>
-
-#include <sys/param.h>
-#include <sys/linker.h>
-#include <machine/elf.h>
-#include <machine/ia64_cpu.h>
-#include <machine/pte.h>
-
-#include <efi.h>
-#include <efilib.h>
-
-#include "libia64.h"
-
-static u_int itr_idx = 0;
-static u_int dtr_idx = 0;
-
-static vm_offset_t ia64_text_start;
-static size_t ia64_text_size;
-
-static vm_offset_t ia64_data_start;
-static size_t ia64_data_size;
-
-static int elf64_exec(struct preloaded_file *amp);
-static int elf64_obj_exec(struct preloaded_file *amp);
-
-static struct file_format ia64_elf = {
- elf64_loadfile,
- elf64_exec
-};
-static struct file_format ia64_elf_obj = {
- elf64_obj_loadfile,
- elf64_obj_exec
-};
-
-struct file_format *file_formats[] = {
- &ia64_elf,
- &ia64_elf_obj,
- NULL
-};
-
-static u_int
-sz2shft(vm_offset_t ofs, vm_size_t sz)
-{
- vm_size_t s;
- u_int shft;
-
- shft = 12; /* Start with 4K */
- s = 1 << shft;
- while (s <= sz) {
- shft++;
- s <<= 1;
- }
- do {
- shft--;
- s >>= 1;
- } while (ofs & (s - 1));
-
- return (shft);
-}
-
-/*
- * Entered with psr.ic and psr.i both zero.
- */
-static void
-enter_kernel(uint64_t start, struct bootinfo *bi)
-{
-
- __asm __volatile("srlz.i;;");
- __asm __volatile("mov cr.ipsr=%0"
- :: "r"(IA64_PSR_IC
- | IA64_PSR_DT
- | IA64_PSR_RT
- | IA64_PSR_IT
- | IA64_PSR_BN));
- __asm __volatile("mov cr.iip=%0" :: "r"(start));
- __asm __volatile("mov cr.ifs=r0;;");
- __asm __volatile("mov ar.rsc=0;; flushrs;;");
- __asm __volatile("mov r8=%0" :: "r" (bi));
- __asm __volatile("rfi;;");
-
- /* NOTREACHED */
-}
-
-static u_int
-mmu_wire(vm_offset_t va, vm_paddr_t pa, u_int pgshft, u_int acc)
-{
- pt_entry_t pte;
-
- /* Round up to the smallest possible page size. */
- if (pgshft < 12)
- pgshft = 12;
- /* Truncate to the largest possible page size (256MB). */
- if (pgshft > 28)
- pgshft = 28;
- /* Round down to a valid (mappable) page size. */
- if (pgshft > 14 && (pgshft & 1) != 0)
- pgshft--;
-
- pte = PTE_PRESENT | PTE_MA_WB | PTE_ACCESSED | PTE_DIRTY |
- PTE_PL_KERN | (acc & PTE_AR_MASK) | (pa & PTE_PPN_MASK);
-
- __asm __volatile("mov cr.ifa=%0" :: "r"(va));
- __asm __volatile("mov cr.itir=%0" :: "r"(pgshft << 2));
- __asm __volatile("srlz.d;;");
-
- __asm __volatile("ptr.d %0,%1" :: "r"(va), "r"(pgshft << 2));
- __asm __volatile("srlz.d;;");
- __asm __volatile("itr.d dtr[%0]=%1" :: "r"(dtr_idx), "r"(pte));
- __asm __volatile("srlz.d;;");
- dtr_idx++;
-
- if (acc == PTE_AR_RWX || acc == PTE_AR_RX) {
- __asm __volatile("ptr.i %0,%1;;" :: "r"(va), "r"(pgshft << 2));
- __asm __volatile("srlz.i;;");
- __asm __volatile("itr.i itr[%0]=%1;;" :: "r"(itr_idx), "r"(pte));
- __asm __volatile("srlz.i;;");
- itr_idx++;
- }
-
- return (pgshft);
-}
-
-static void
-mmu_setup_legacy(uint64_t entry)
-{
-
- /*
- * Region 6 is direct mapped UC and region 7 is direct mapped
- * WC. The details of this is controlled by the Alt {I,D}TLB
- * handlers. Here we just make sure that they have the largest
- * possible page size to minimise TLB usage.
- */
- ia64_set_rr(IA64_RR_BASE(6), (6 << 8) | (28 << 2));
- ia64_set_rr(IA64_RR_BASE(7), (7 << 8) | (28 << 2));
- __asm __volatile("srlz.i;;");
-
- mmu_wire(entry, IA64_RR_MASK(entry), 28, PTE_AR_RWX);
-}
-
-static void
-mmu_setup_paged(struct bootinfo *bi)
-{
- void *pa;
- size_t sz;
- u_int shft;
-
- ia64_set_rr(IA64_RR_BASE(IA64_PBVM_RR),
- (IA64_PBVM_RR << 8) | (IA64_PBVM_PAGE_SHIFT << 2));
- __asm __volatile("srlz.i;;");
-
- /* Wire the PBVM page table. */
- mmu_wire(IA64_PBVM_PGTBL, (uintptr_t)ia64_pgtbl,
- sz2shft(IA64_PBVM_PGTBL, ia64_pgtblsz), PTE_AR_RW);
-
- /* Wire as much of the text segment as we can. */
- sz = ia64_text_size; /* XXX */
- pa = ia64_va2pa(ia64_text_start, &ia64_text_size);
- ia64_text_size = sz; /* XXX */
- shft = sz2shft(ia64_text_start, ia64_text_size);
- shft = mmu_wire(ia64_text_start, (uintptr_t)pa, shft, PTE_AR_RWX);
- ia64_copyin(&shft, (uintptr_t)&bi->bi_text_mapped, 4);
-
- /* Wire as much of the data segment as well. */
- sz = ia64_data_size; /* XXX */
- pa = ia64_va2pa(ia64_data_start, &ia64_data_size);
- ia64_data_size = sz; /* XXX */
- shft = sz2shft(ia64_data_start, ia64_data_size);
- shft = mmu_wire(ia64_data_start, (uintptr_t)pa, shft, PTE_AR_RW);
- ia64_copyin(&shft, (uintptr_t)&bi->bi_data_mapped, 4);
-
- /* Update the bootinfo with the number of TRs used. */
- ia64_copyin(&itr_idx, (uintptr_t)&bi->bi_itr_used, 4);
- ia64_copyin(&dtr_idx, (uintptr_t)&bi->bi_dtr_used, 4);
-}
-
-static int
-elf64_exec(struct preloaded_file *fp)
-{
- struct bootinfo *bi;
- struct file_metadata *md;
- Elf_Ehdr *hdr;
- int error;
-
- md = file_findmetadata(fp, MODINFOMD_ELFHDR);
- if (md == NULL)
- return (EINVAL);
-
- error = ia64_bootinfo(fp, &bi);
- if (error)
- return (error);
-
- hdr = (Elf_Ehdr *)&(md->md_data);
- printf("Entering %s at 0x%lx...\n", fp->f_name, hdr->e_entry);
-
- error = ia64_platform_enter(fp->f_name);
- if (error)
- return (error);
-
- __asm __volatile("rsm psr.ic|psr.i;;");
- __asm __volatile("srlz.i;;");
-
- if (IS_LEGACY_KERNEL())
- mmu_setup_legacy(hdr->e_entry);
- else
- mmu_setup_paged(bi);
-
- enter_kernel(hdr->e_entry, bi);
- /* NOTREACHED */
- return (EDOOFUS);
-}
-
-static int
-elf64_obj_exec(struct preloaded_file *fp)
-{
-
- printf("%s called for preloaded file %p (=%s):\n", __func__, fp,
- fp->f_name);
- return (ENOSYS);
-}
-
-void
-ia64_loadseg(Elf_Ehdr *eh, Elf_Phdr *ph, uint64_t delta)
-{
-
- if (eh->e_type != ET_EXEC)
- return;
-
- if (ph->p_flags & PF_X) {
- ia64_text_start = ph->p_vaddr + delta;
- ia64_text_size = ph->p_memsz;
-
- ia64_sync_icache(ia64_text_start, ia64_text_size);
- } else {
- ia64_data_start = ph->p_vaddr + delta;
- ia64_data_size = ph->p_memsz;
- }
-}
-
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