Merge branch 'merge' of master.kernel.org:/pub/scm/linux/kernel/git/paulus/powerpc

* 'merge' of master.kernel.org:/pub/scm/linux/kernel/git/paulus/powerpc:
  [POWERPC] Make sure __cpu_preinit_ppc970 gets called on 970GX processors
  [POWERPC] Fix CHRP platforms with only 8259
  [POWERPC] IPIC: Fix spinlock recursion in set_irq_handler
  [POWERPC] Fix the UCC rx/tx clock of QE
  [POWERPC] cell: update defconfig
  [POWERPC] spufs: fix another off-by-one bug in spufs_mbox_read
  [POWERPC] spufs: fix signal2 file to report signal2
  [POWERPC] Fix device_is_compatible() const warning
  [POWERPC] Cell timebase bug workaround
  [POWERPC] Support feature fixups in modules
  [POWERPC] Support feature fixups in vdso's
  [POWERPC] Support nested cpu feature sections
  [POWERPC] Consolidate feature fixup code
  [POWERPC] Fix hang in start_ldr if _end or _edata is unaligned
  [POWERPC] Fix spelling errors in ucc_fast.c and ucc_slow.c
  [POWERPC] Don't require execute perms on wrapper when building zImage.initrd
  [POWERPC] Add 970GX cputable entry
  [POWERPC] Fix build breakage with CONFIG_PPC32
  [POWERPC] Fix compiler warning message on get_property call
  [POWERPC] Simplify stolen time calculation

1 files changed, 40 insertions, 9 deletions

diff --git a/arch/powerpc/kernel/module_64.c b/arch/powerpc/kernel/module_64.c
index ba34001fca8..8dd1f0aae5d 100644
--- a/arch/powerpc/kernel/module_64.c
+++ b/arch/powerpc/kernel/module_64.c
@@ -22,6 +22,9 @@
 #include <linux/vmalloc.h>
 #include <asm/module.h>
 #include <asm/uaccess.h>
+#include <asm/firmware.h>
+
+#include "setup.h"
 
 /* FIXME: We don't do .init separately.  To do this, we'd need to have
    a separate r2 value in the init and core section, and stub between
@@ -400,6 +403,11 @@ int apply_relocate_add(Elf64_Shdr *sechdrs,
 				| (value & 0x03fffffc);
 			break;
 
+		case R_PPC64_REL64:
+			/* 64 bits relative (used by features fixups) */
+			*location = value - (unsigned long)location;
+			break;
+
 		default:
 			printk("%s: Unknown ADD relocation: %lu\n",
 			       me->name,
@@ -413,23 +421,33 @@ int apply_relocate_add(Elf64_Shdr *sechdrs,
 
 LIST_HEAD(module_bug_list);
 
-int module_finalize(const Elf_Ehdr *hdr,
-		const Elf_Shdr *sechdrs, struct module *me)
+static const Elf_Shdr *find_section(const Elf_Ehdr *hdr,
+				    const Elf_Shdr *sechdrs,
+				    const char *name)
 {
 	char *secstrings;
 	unsigned int i;
 
+	secstrings = (char *)hdr + sechdrs[hdr->e_shstrndx].sh_offset;
+	for (i = 1; i < hdr->e_shnum; i++)
+		if (strcmp(secstrings+sechdrs[i].sh_name, name) == 0)
+			return &sechdrs[i];
+	return NULL;
+}
+
+int module_finalize(const Elf_Ehdr *hdr,
+		const Elf_Shdr *sechdrs, struct module *me)
+{
+	const Elf_Shdr *sect;
+
 	me->arch.bug_table = NULL;
 	me->arch.num_bugs = 0;
 
 	/* Find the __bug_table section, if present */
-	secstrings = (char *)hdr + sechdrs[hdr->e_shstrndx].sh_offset;
-	for (i = 1; i < hdr->e_shnum; i++) {
-		if (strcmp(secstrings+sechdrs[i].sh_name, "__bug_table"))
-			continue;
-		me->arch.bug_table = (void *) sechdrs[i].sh_addr;
-		me->arch.num_bugs = sechdrs[i].sh_size / sizeof(struct bug_entry);
-		break;
+	sect = find_section(hdr, sechdrs, "__bug_table");
+	if (sect != NULL) {
+		me->arch.bug_table = (void *) sect->sh_addr;
+		me->arch.num_bugs = sect->sh_size / sizeof(struct bug_entry);
 	}
 
 	/*
@@ -439,6 +457,19 @@ int module_finalize(const Elf_Ehdr *hdr,
 	 */
 	list_add(&me->arch.bug_list, &module_bug_list);
 
+	/* Apply feature fixups */
+	sect = find_section(hdr, sechdrs, "__ftr_fixup");
+	if (sect != NULL)
+		do_feature_fixups(cur_cpu_spec->cpu_features,
+				  (void *)sect->sh_addr,
+				  (void *)sect->sh_addr + sect->sh_size);
+
+	sect = find_section(hdr, sechdrs, "__fw_ftr_fixup");
+	if (sect != NULL)
+		do_feature_fixups(powerpc_firmware_features,
+				  (void *)sect->sh_addr,
+				  (void *)sect->sh_addr + sect->sh_size);
+
 	return 0;
 }