parisc: Split out alternative live patching code

Move the alternative implemenation coding to alternative.c and add code to
patch modules while loading.

Signed-off-by: Helge Deller <deller@gmx.de>

1 files changed, 0 insertions, 80 deletions

diff --git a/arch/parisc/kernel/setup.c b/arch/parisc/kernel/setup.c
index cd227f1cf629..2b108ee3b217 100644
--- a/arch/parisc/kernel/setup.c
+++ b/arch/parisc/kernel/setup.c
@@ -305,86 +305,6 @@ static int __init parisc_init_resources(void)
 	return 0;
 }
 
-static int no_alternatives __initdata;
-static int __init setup_no_alternatives(char *str)
-{
-	no_alternatives = 1;
-	return 1;
-}
-__setup("no-alternatives", setup_no_alternatives);
-
-static void __init apply_alternatives_all(void)
-{
-	struct alt_instr *entry;
-	int index = 0, applied = 0;
-
-
-	pr_info("alternatives: %spatching kernel code\n",
-		no_alternatives ? "NOT " : "");
-	if (no_alternatives)
-		return;
-
-	set_kernel_text_rw(1);
-
-	for (entry = (struct alt_instr *) &__alt_instructions;
-		entry < (struct alt_instr *) &__alt_instructions_end;
-		entry++, index++) {
-
-		u32 *from, len, cond, replacement;
-
-		from = (u32 *)((ulong)&entry->orig_offset + entry->orig_offset);
-		len = entry->len;
-		cond = entry->cond;
-		replacement = entry->replacement;
-
-		WARN_ON(!cond);
-		pr_debug("Check %d: Cond 0x%x, Replace %02d instructions @ 0x%px with 0x%08x\n",
-			index, cond, len, from, replacement);
-
-		if ((cond & ALT_COND_NO_SMP) && (num_online_cpus() != 1))
-			continue;
-		if ((cond & ALT_COND_NO_DCACHE) && (cache_info.dc_size != 0))
-			continue;
-		if ((cond & ALT_COND_NO_ICACHE) && (cache_info.ic_size != 0))
-			continue;
-
-		/*
-		 * If the PDC_MODEL capabilities has Non-coherent IO-PDIR bit
-		 * set (bit #61, big endian), we have to flush and sync every
-		 * time IO-PDIR is changed in Ike/Astro.
-		 */
-		if ((cond & ALT_COND_NO_IOC_FDC) &&
-			(boot_cpu_data.pdc.capabilities & PDC_MODEL_IOPDIR_FDC))
-			continue;
-
-		/* Want to replace pdtlb by a pdtlb,l instruction? */
-		if (replacement == INSN_PxTLB) {
-			replacement = *from;
-			if (boot_cpu_data.cpu_type >= pcxu) /* >= pa2.0 ? */
-				replacement |= (1 << 10); /* set el bit */
-		}
-
-		/*
-		 * Replace instruction with NOPs?
-		 * For long distance insert a branch instruction instead.
-		 */
-		if (replacement == INSN_NOP && len > 1)
-			replacement = 0xe8000002 + (len-2)*8; /* "b,n .+8" */
-
-		pr_debug("Do    %d: Cond 0x%x, Replace %02d instructions @ 0x%px with 0x%08x\n",
-			index, cond, len, from, replacement);
-
-		/* Replace instruction */
-		*from = replacement;
-		applied++;
-	}
-
-	pr_info("alternatives: applied %d out of %d patches\n", applied, index);
-
-	set_kernel_text_rw(0);
-}
-
-
 extern void gsc_init(void);
 extern void processor_init(void);
 extern void ccio_init(void);