From 01573e231f18eb2d99162747186f59511f56b64d Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Fri, 08 Dec 2023 10:40:48 +0000
Subject: [PATCH] 移去rt
---
kernel/arch/powerpc/kernel/vecemu.c | 20 ++++++++++++--------
1 files changed, 12 insertions(+), 8 deletions(-)
diff --git a/kernel/arch/powerpc/kernel/vecemu.c b/kernel/arch/powerpc/kernel/vecemu.c
index 4acd3fb..ae63256 100644
--- a/kernel/arch/powerpc/kernel/vecemu.c
+++ b/kernel/arch/powerpc/kernel/vecemu.c
@@ -10,6 +10,7 @@
#include <asm/processor.h>
#include <asm/switch_to.h>
#include <linux/uaccess.h>
+#include <asm/inst.h>
/* Functions in vector.S */
extern void vaddfp(vector128 *dst, vector128 *a, vector128 *b);
@@ -260,21 +261,24 @@
int emulate_altivec(struct pt_regs *regs)
{
- unsigned int instr, i;
+ struct ppc_inst instr;
+ unsigned int i, word;
unsigned int va, vb, vc, vd;
vector128 *vrs;
- if (get_user(instr, (unsigned int __user *) regs->nip))
+ if (get_user_instr(instr, (void __user *)regs->nip))
return -EFAULT;
- if ((instr >> 26) != 4)
+
+ word = ppc_inst_val(instr);
+ if (ppc_inst_primary_opcode(instr) != 4)
return -EINVAL; /* not an altivec instruction */
- vd = (instr >> 21) & 0x1f;
- va = (instr >> 16) & 0x1f;
- vb = (instr >> 11) & 0x1f;
- vc = (instr >> 6) & 0x1f;
+ vd = (word >> 21) & 0x1f;
+ va = (word >> 16) & 0x1f;
+ vb = (word >> 11) & 0x1f;
+ vc = (word >> 6) & 0x1f;
vrs = current->thread.vr_state.vr;
- switch (instr & 0x3f) {
+ switch (word & 0x3f) {
case 10:
switch (vc) {
case 0: /* vaddfp */
--
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