aboutsummaryrefslogtreecommitdiffstats
path: root/arch/x86/kernel/cpu/nexgen.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/x86/kernel/cpu/nexgen.c')
-rw-r--r--arch/x86/kernel/cpu/nexgen.c59
1 files changed, 0 insertions, 59 deletions
diff --git a/arch/x86/kernel/cpu/nexgen.c b/arch/x86/kernel/cpu/nexgen.c
deleted file mode 100644
index 5d5e1c13412..00000000000
--- a/arch/x86/kernel/cpu/nexgen.c
+++ /dev/null
@@ -1,59 +0,0 @@
1#include <linux/kernel.h>
2#include <linux/init.h>
3#include <linux/string.h>
4#include <asm/processor.h>
5
6#include "cpu.h"
7
8/*
9 * Detect a NexGen CPU running without BIOS hypercode new enough
10 * to have CPUID. (Thanks to Herbert Oppmann)
11 */
12
13static int __cpuinit deep_magic_nexgen_probe(void)
14{
15 int ret;
16
17 __asm__ __volatile__ (
18 " movw $0x5555, %%ax\n"
19 " xorw %%dx,%%dx\n"
20 " movw $2, %%cx\n"
21 " divw %%cx\n"
22 " movl $0, %%eax\n"
23 " jnz 1f\n"
24 " movl $1, %%eax\n"
25 "1:\n"
26 : "=a" (ret) : : "cx", "dx");
27 return ret;
28}
29
30static void __cpuinit init_nexgen(struct cpuinfo_x86 *c)
31{
32 c->x86_cache_size = 256; /* A few had 1 MB... */
33}
34
35static void __cpuinit nexgen_identify(struct cpuinfo_x86 *c)
36{
37 /* Detect NexGen with old hypercode */
38 if (deep_magic_nexgen_probe())
39 strcpy(c->x86_vendor_id, "NexGenDriven");
40}
41
42static struct cpu_dev nexgen_cpu_dev __cpuinitdata = {
43 .c_vendor = "Nexgen",
44 .c_ident = { "NexGenDriven" },
45 .c_models = {
46 { .vendor = X86_VENDOR_NEXGEN,
47 .family = 5,
48 .model_names = { [1] = "Nx586" }
49 },
50 },
51 .c_init = init_nexgen,
52 .c_identify = nexgen_identify,
53};
54
55int __init nexgen_init_cpu(void)
56{
57 cpu_devs[X86_VENDOR_NEXGEN] = &nexgen_cpu_dev;
58 return 0;
59}