1 files changed, 116 insertions, 24 deletions

diff --git a/arch/sparc/kernel/module.c b/arch/sparc/kernel/module.c
index 598682f31ebf..90273765e81f 100644
--- a/arch/sparc/kernel/module.c
+++ b/arch/sparc/kernel/module.c
@@ -1,4 +1,4 @@
-/* Kernel module help for sparc32.
+/* Kernel module help for sparc64.
  *
  * Copyright (C) 2001 Rusty Russell.
  * Copyright (C) 2002 David S. Miller.
@@ -11,6 +11,48 @@
 #include <linux/fs.h>
 #include <linux/string.h>
 #include <linux/ctype.h>
+#include <linux/slab.h>
+#include <linux/mm.h>
+
+#include <asm/processor.h>
+#include <asm/spitfire.h>
+
+#ifdef CONFIG_SPARC64
+static void *module_map(unsigned long size)
+{
+        struct vm_struct *area;
+
+        size = PAGE_ALIGN(size);
+        if (!size || size > MODULES_LEN)
+                return NULL;
+
+        area = __get_vm_area(size, VM_ALLOC, MODULES_VADDR, MODULES_END);
+        if (!area)
+                return NULL;
+
+        return __vmalloc_area(area, GFP_KERNEL, PAGE_KERNEL);
+}
+
+static char *dot2underscore(char *name)
+{
+        return name;
+}
+#else
+static void *module_map(unsigned long size)
+{
+        return vmalloc(size);
+}
+
+/* Replace references to .func with _Func */
+static char *dot2underscore(char *name)
+{
+        if (name[0] == '.') {
+                name[0] = '_';
+                name[1] = toupper(name[1]);
+        }
+        return name;
+}
+#endif /* CONFIG_SPARC64 */
 
 void *module_alloc(unsigned long size)
 {
@@ -20,7 +62,7 @@ void *module_alloc(unsigned long size)
         if (size == 0)
                 return NULL;
 
-        ret = vmalloc(size);
+        ret = module_map(size);
         if (!ret)
                 ret = ERR_PTR(-ENOMEM);
         else
@@ -37,16 +79,14 @@ void module_free(struct module *mod, void *module_region)
            table entries. */
 }
 
-/* Make generic code ignore STT_REGISTER dummy undefined symbols,
- * and replace references to .func with _Func
- */
+/* Make generic code ignore STT_REGISTER dummy undefined symbols.  */
 int module_frob_arch_sections(Elf_Ehdr *hdr,
                               Elf_Shdr *sechdrs,
                               char *secstrings,
                               struct module *mod)
 {
         unsigned int symidx;
-        Elf32_Sym *sym;
+        Elf_Sym *sym;
         char *strtab;
         int i;
 
@@ -56,26 +96,23 @@ int module_frob_arch_sections(Elf_Ehdr *hdr,
                         return -ENOEXEC;
                 }
         }
-        sym = (Elf32_Sym *)sechdrs[symidx].sh_addr;
+        sym = (Elf_Sym *)sechdrs[symidx].sh_addr;
         strtab = (char *)sechdrs[sechdrs[symidx].sh_link].sh_addr;
 
         for (i = 1; i < sechdrs[symidx].sh_size / sizeof(Elf_Sym); i++) {
                 if (sym[i].st_shndx == SHN_UNDEF) {
-                        if (ELF32_ST_TYPE(sym[i].st_info) == STT_REGISTER)
+                        if (ELF_ST_TYPE(sym[i].st_info) == STT_REGISTER) {
                                 sym[i].st_shndx = SHN_ABS;
-                        else {
+                        } else {
                                 char *name = strtab + sym[i].st_name;
-                                if (name[0] == '.') {
-                                        name[0] = '_';
-                                        name[1] = toupper(name[1]);
-                                }
+                                dot2underscore(name);
                         }
                 }
         }
         return 0;
 }
 
-int apply_relocate(Elf32_Shdr *sechdrs,
+int apply_relocate(Elf_Shdr *sechdrs,
                    const char *strtab,
                    unsigned int symindex,
                    unsigned int relsec,
@@ -86,32 +123,68 @@ int apply_relocate(Elf32_Shdr *sechdrs,
         return -ENOEXEC;
 }
 
-int apply_relocate_add(Elf32_Shdr *sechdrs,
+int apply_relocate_add(Elf_Shdr *sechdrs,
                        const char *strtab,
                        unsigned int symindex,
                        unsigned int relsec,
                        struct module *me)
 {
         unsigned int i;
-        Elf32_Rela *rel = (void *)sechdrs[relsec].sh_addr;
-        Elf32_Sym *sym;
+        Elf_Rela *rel = (void *)sechdrs[relsec].sh_addr;
+        Elf_Sym *sym;
         u8 *location;
         u32 *loc32;
 
         for (i = 0; i < sechdrs[relsec].sh_size / sizeof(*rel); i++) {
-                Elf32_Addr v;
+                Elf_Addr v;
 
                 /* This is where to make the change */
                 location = (u8 *)sechdrs[sechdrs[relsec].sh_info].sh_addr
                         + rel[i].r_offset;
                 loc32 = (u32 *) location;
+
+#ifdef CONFIG_SPARC64
+                BUG_ON(((u64)location >> (u64)32) != (u64)0);
+#endif /* CONFIG_SPARC64 */
+
                 /* This is the symbol it is referring to.  Note that all
                    undefined symbols have been resolved.  */
-                sym = (Elf32_Sym *)sechdrs[symindex].sh_addr
-                        + ELF32_R_SYM(rel[i].r_info);
+                sym = (Elf_Sym *)sechdrs[symindex].sh_addr
+                        + ELF_R_SYM(rel[i].r_info);
                 v = sym->st_value + rel[i].r_addend;
 
-                switch (ELF32_R_TYPE(rel[i].r_info)) {
+                switch (ELF_R_TYPE(rel[i].r_info) & 0xff) {
+#ifdef CONFIG_SPARC64
+                case R_SPARC_64:
+                        location[0] = v >> 56;
+                        location[1] = v >> 48;
+                        location[2] = v >> 40;
+                        location[3] = v >> 32;
+                        location[4] = v >> 24;
+                        location[5] = v >> 16;
+                        location[6] = v >>  8;
+                        location[7] = v >>  0;
+                        break;
+
+                case R_SPARC_DISP32:
+                        v -= (Elf_Addr) location;
+                        *loc32 = v;
+                        break;
+
+                case R_SPARC_WDISP19:
+                        v -= (Elf_Addr) location;
+                        *loc32 = (*loc32 & ~0x7ffff) |
+                                ((v >> 2) & 0x7ffff);
+                        break;
+
+                case R_SPARC_OLO10:
+                        *loc32 = (*loc32 & ~0x1fff) |
+                                (((v & 0x3ff) +
+                                  (ELF_R_TYPE(rel[i].r_info) >> 8))
+                                 & 0x1fff);
+                        break;
+#endif /* CONFIG_SPARC64 */
+
                 case R_SPARC_32:
                 case R_SPARC_UA32:
                         location[0] = v >> 24;
@@ -121,13 +194,13 @@ int apply_relocate_add(Elf32_Shdr *sechdrs,
                         break;
 
                 case R_SPARC_WDISP30:
-                        v -= (Elf32_Addr) location;
+                        v -= (Elf_Addr) location;
                         *loc32 = (*loc32 & ~0x3fffffff) |
                                 ((v >> 2) & 0x3fffffff);
                         break;
 
                 case R_SPARC_WDISP22:
-                        v -= (Elf32_Addr) location;
+                        v -= (Elf_Addr) location;
                         *loc32 = (*loc32 & ~0x3fffff) |
                                 ((v >> 2) & 0x3fffff);
                         break;
@@ -144,19 +217,38 @@ int apply_relocate_add(Elf32_Shdr *sechdrs,
                 default:
                         printk(KERN_ERR "module %s: Unknown relocation: %x\n",
                                me->name,
-                               (int) (ELF32_R_TYPE(rel[i].r_info) & 0xff));
+                               (int) (ELF_R_TYPE(rel[i].r_info) & 0xff));
                         return -ENOEXEC;
                 };
         }
         return 0;
 }
 
+#ifdef CONFIG_SPARC64
 int module_finalize(const Elf_Ehdr *hdr,
                     const Elf_Shdr *sechdrs,
                     struct module *me)
 {
+        /* Cheetah's I-cache is fully coherent.  */
+        if (tlb_type == spitfire) {
+                unsigned long va;
+
+                flushw_all();
+                for (va =  0; va < (PAGE_SIZE << 1); va += 32)
+                        spitfire_put_icache_tag(va, 0x0);
+                __asm__ __volatile__("flush %g6");
+        }
+
         return 0;
 }
+#else
+int module_finalize(const Elf_Ehdr *hdr,
+                    const Elf_Shdr *sechdrs,
+                    struct module *me)
+{
+        return 0;
+}
+#endif /* CONFIG_SPARC64 */
 
 void module_arch_cleanup(struct module *mod)
 {