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-rw-r--r--arch/powerpc/kernel/head_8xx.S4
-rw-r--r--arch/powerpc/kernel/head_book3s_32.S6
-rw-r--r--arch/powerpc/kernel/kprobes.c22
-rw-r--r--arch/powerpc/kernel/module.c38
4 files changed, 6 insertions, 64 deletions
diff --git a/arch/powerpc/kernel/head_8xx.S b/arch/powerpc/kernel/head_8xx.S
index 647b0b445e89..edc479a7c2bc 100644
--- a/arch/powerpc/kernel/head_8xx.S
+++ b/arch/powerpc/kernel/head_8xx.S
@@ -199,12 +199,12 @@ instruction_counter:
mfspr r10, SPRN_SRR0 /* Get effective address of fault */
INVALIDATE_ADJACENT_PAGES_CPU15(r10, r11)
mtspr SPRN_MD_EPN, r10
-#ifdef CONFIG_MODULES
+#ifdef CONFIG_EXECMEM
mfcr r11
compare_to_kernel_boundary r10, r10
#endif
mfspr r10, SPRN_M_TWB /* Get level 1 table */
-#ifdef CONFIG_MODULES
+#ifdef CONFIG_EXECMEM
blt+ 3f
rlwinm r10, r10, 0, 20, 31
oris r10, r10, (swapper_pg_dir - PAGE_OFFSET)@ha
diff --git a/arch/powerpc/kernel/head_book3s_32.S b/arch/powerpc/kernel/head_book3s_32.S
index c1d89764dd22..57196883a00e 100644
--- a/arch/powerpc/kernel/head_book3s_32.S
+++ b/arch/powerpc/kernel/head_book3s_32.S
@@ -419,14 +419,14 @@ InstructionTLBMiss:
*/
/* Get PTE (linux-style) and check access */
mfspr r3,SPRN_IMISS
-#ifdef CONFIG_MODULES
+#ifdef CONFIG_EXECMEM
lis r1, TASK_SIZE@h /* check if kernel address */
cmplw 0,r1,r3
#endif
mfspr r2, SPRN_SDR1
li r1,_PAGE_PRESENT | _PAGE_ACCESSED | _PAGE_EXEC
rlwinm r2, r2, 28, 0xfffff000
-#ifdef CONFIG_MODULES
+#ifdef CONFIG_EXECMEM
li r0, 3
bgt- 112f
lis r2, (swapper_pg_dir - PAGE_OFFSET)@ha /* if kernel address, use */
@@ -442,7 +442,7 @@ InstructionTLBMiss:
andc. r1,r1,r2 /* check access & ~permission */
bne- InstructionAddressInvalid /* return if access not permitted */
/* Convert linux-style PTE to low word of PPC-style PTE */
-#ifdef CONFIG_MODULES
+#ifdef CONFIG_EXECMEM
rlwimi r2, r0, 0, 31, 31 /* userspace ? -> PP lsb */
#endif
ori r1, r1, 0xe06 /* clear out reserved bits */
diff --git a/arch/powerpc/kernel/kprobes.c b/arch/powerpc/kernel/kprobes.c
index bbca90a5e2ec..14c5ddec3056 100644
--- a/arch/powerpc/kernel/kprobes.c
+++ b/arch/powerpc/kernel/kprobes.c
@@ -19,8 +19,8 @@
#include <linux/extable.h>
#include <linux/kdebug.h>
#include <linux/slab.h>
-#include <linux/moduleloader.h>
#include <linux/set_memory.h>
+#include <linux/execmem.h>
#include <asm/code-patching.h>
#include <asm/cacheflush.h>
#include <asm/sstep.h>
@@ -126,26 +126,6 @@ kprobe_opcode_t *arch_adjust_kprobe_addr(unsigned long addr, unsigned long offse
return (kprobe_opcode_t *)(addr + offset);
}
-void *alloc_insn_page(void)
-{
- void *page;
-
- page = module_alloc(PAGE_SIZE);
- if (!page)
- return NULL;
-
- if (strict_module_rwx_enabled()) {
- int err = set_memory_rox((unsigned long)page, 1);
-
- if (err)
- goto error;
- }
- return page;
-error:
- module_memfree(page);
- return NULL;
-}
-
int arch_prepare_kprobe(struct kprobe *p)
{
int ret = 0;
diff --git a/arch/powerpc/kernel/module.c b/arch/powerpc/kernel/module.c
index f6d6ae0a1692..77ea82e9dc5f 100644
--- a/arch/powerpc/kernel/module.c
+++ b/arch/powerpc/kernel/module.c
@@ -7,7 +7,6 @@
#include <linux/elf.h>
#include <linux/moduleloader.h>
#include <linux/err.h>
-#include <linux/vmalloc.h>
#include <linux/mm.h>
#include <linux/bug.h>
#include <asm/module.h>
@@ -88,40 +87,3 @@ int module_finalize(const Elf_Ehdr *hdr,
return 0;
}
-
-static __always_inline void *
-__module_alloc(unsigned long size, unsigned long start, unsigned long end, bool nowarn)
-{
- pgprot_t prot = strict_module_rwx_enabled() ? PAGE_KERNEL : PAGE_KERNEL_EXEC;
- gfp_t gfp = GFP_KERNEL | (nowarn ? __GFP_NOWARN : 0);
-
- /*
- * Don't do huge page allocations for modules yet until more testing
- * is done. STRICT_MODULE_RWX may require extra work to support this
- * too.
- */
- return __vmalloc_node_range(size, 1, start, end, gfp, prot,
- VM_FLUSH_RESET_PERMS,
- NUMA_NO_NODE, __builtin_return_address(0));
-}
-
-void *module_alloc(unsigned long size)
-{
-#ifdef MODULES_VADDR
- unsigned long limit = (unsigned long)_etext - SZ_32M;
- void *ptr = NULL;
-
- BUILD_BUG_ON(TASK_SIZE > MODULES_VADDR);
-
- /* First try within 32M limit from _etext to avoid branch trampolines */
- if (MODULES_VADDR < PAGE_OFFSET && MODULES_END > limit)
- ptr = __module_alloc(size, limit, MODULES_END, true);
-
- if (!ptr)
- ptr = __module_alloc(size, MODULES_VADDR, MODULES_END, false);
-
- return ptr;
-#else
- return __module_alloc(size, VMALLOC_START, VMALLOC_END, false);
-#endif
-}