blob: d977e5836f84c23191b8770efcfc4ffe3a1d0601 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
|
/* SPDX-License-Identifier: GPL-2.0-only */
#ifndef __CPU__INTEL__MICROCODE__
#define __CPU__INTEL__MICROCODE__
#include <stdint.h>
void intel_update_microcode_from_cbfs(void);
/* Find a microcode that matches the revision and platform family returning
* NULL if none found. The found microcode is cached for faster access on
* subsequent calls of this function.
*
* Since this function caches the found microcode (NULL or a valid microcode
* pointer), it is expected to be run from BSP before starting any other APs.
* It is not multithread safe otherwise. */
const void *intel_microcode_find(void);
/* It is up to the caller to determine if parallel loading is possible as
* well as ensuring the microcode matches the family and revision (i.e. with
* intel_microcode_find()). */
void intel_microcode_load_unlocked(const void *microcode_patch);
/* SoC specific check to determine if microcode update is really
* required, will skip microcode update if true. */
int soc_skip_ucode_update(u32 current_patch_id, u32 new_patch_id);
/* return the version of the currently running microcode */
uint32_t get_current_microcode_rev(void);
/* extract microcode revision from the given patch */
uint32_t get_microcode_rev(const void *microcode);
/* extract microcode size from the given patch */
uint32_t get_microcode_size(const void *microcode);
/* extract checksum from the given patch */
uint32_t get_microcode_checksum(const void *microcode);
#endif
|
