scattered.c (9f72f855a6cdbb5313787145a69b474cd9f55f28) scattered.c (ad3bc25a320742f42b3015115384f5aec69c7ce2)
1/*
2 * Routines to identify additional cpu features that are scattered in
3 * cpuid space.
4 */
5#include <linux/cpu.h>
6
7#include <asm/pat.h>
1/*
2 * Routines to identify additional cpu features that are scattered in
3 * cpuid space.
4 */
5#include <linux/cpu.h>
6
7#include <asm/pat.h>
8#include <asm/apic.h>
8#include <asm/processor.h>
9
9#include <asm/processor.h>
10
10#include <asm/apic.h>
11#include "cpu.h"
11
12struct cpuid_bit {
13 u16 feature;
14 u8 reg;
15 u8 bit;
16 u32 level;
17 u32 sub_leaf;
18};
19
12
13struct cpuid_bit {
14 u16 feature;
15 u8 reg;
16 u8 bit;
17 u32 level;
18 u32 sub_leaf;
19};
20
20/*
21 * Please keep the leaf sorted by cpuid_bit.level for faster search.
22 * X86_FEATURE_MBA is supported by both Intel and AMD. But the CPUID
23 * levels are different and there is a separate entry for each.
24 */
21/* Please keep the leaf sorted by cpuid_bit.level for faster search. */
25static const struct cpuid_bit cpuid_bits[] = {
26 { X86_FEATURE_APERFMPERF, CPUID_ECX, 0, 0x00000006, 0 },
27 { X86_FEATURE_EPB, CPUID_ECX, 3, 0x00000006, 0 },
28 { X86_FEATURE_CAT_L3, CPUID_EBX, 1, 0x00000010, 0 },
29 { X86_FEATURE_CAT_L2, CPUID_EBX, 2, 0x00000010, 0 },
30 { X86_FEATURE_CDP_L3, CPUID_ECX, 2, 0x00000010, 1 },
31 { X86_FEATURE_CDP_L2, CPUID_ECX, 2, 0x00000010, 2 },
32 { X86_FEATURE_MBA, CPUID_EBX, 3, 0x00000010, 0 },
33 { X86_FEATURE_HW_PSTATE, CPUID_EDX, 7, 0x80000007, 0 },
34 { X86_FEATURE_CPB, CPUID_EDX, 9, 0x80000007, 0 },
35 { X86_FEATURE_PROC_FEEDBACK, CPUID_EDX, 11, 0x80000007, 0 },
22static const struct cpuid_bit cpuid_bits[] = {
23 { X86_FEATURE_APERFMPERF, CPUID_ECX, 0, 0x00000006, 0 },
24 { X86_FEATURE_EPB, CPUID_ECX, 3, 0x00000006, 0 },
25 { X86_FEATURE_CAT_L3, CPUID_EBX, 1, 0x00000010, 0 },
26 { X86_FEATURE_CAT_L2, CPUID_EBX, 2, 0x00000010, 0 },
27 { X86_FEATURE_CDP_L3, CPUID_ECX, 2, 0x00000010, 1 },
28 { X86_FEATURE_CDP_L2, CPUID_ECX, 2, 0x00000010, 2 },
29 { X86_FEATURE_MBA, CPUID_EBX, 3, 0x00000010, 0 },
30 { X86_FEATURE_HW_PSTATE, CPUID_EDX, 7, 0x80000007, 0 },
31 { X86_FEATURE_CPB, CPUID_EDX, 9, 0x80000007, 0 },
32 { X86_FEATURE_PROC_FEEDBACK, CPUID_EDX, 11, 0x80000007, 0 },
36 { X86_FEATURE_MBA, CPUID_EBX, 6, 0x80000008, 0 },
37 { X86_FEATURE_SME, CPUID_EAX, 0, 0x8000001f, 0 },
38 { X86_FEATURE_SEV, CPUID_EAX, 1, 0x8000001f, 0 },
39 { 0, 0, 0, 0, 0 }
40};
41
42void init_scattered_cpuid_features(struct cpuinfo_x86 *c)
43{
44 u32 max_level;

--- 43 unchanged lines hidden --- 		33 { X86_FEATURE_SME, CPUID_EAX, 0, 0x8000001f, 0 },
34 { X86_FEATURE_SEV, CPUID_EAX, 1, 0x8000001f, 0 },
35 { 0, 0, 0, 0, 0 }
36};
37
38void init_scattered_cpuid_features(struct cpuinfo_x86 *c)
39{
40 u32 max_level;

--- 43 unchanged lines hidden ---