mirror of
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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d45de40934
This is the 1st patch in the series. Here the aim was to avoid any
significant changes, logically-wise.
So it's mainly about generic interface refactoring: e.g. make
microcode_{intel,amd}.c more about arch-specific details and less
about policies like make-sure-we-run-on-a-target-cpu
(no more set_cpus_allowed_ptr() here) and generic synchronization (no
more microcode_mutex here).
All in all, more line have been deleted than added.
4 files changed, 145 insertions(+), 198 deletions(-)
Signed-off-by: Dmitry Adamushko <dmitry.adamushko@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
100 lines
2.4 KiB
C
100 lines
2.4 KiB
C
#ifndef ASM_X86__MICROCODE_H
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#define ASM_X86__MICROCODE_H
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extern int microcode_init(void *opaque, struct module *module);
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extern void microcode_exit(void);
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struct cpu_signature;
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struct microcode_ops {
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long (*get_next_ucode)(void **mc, long offset);
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long (*microcode_get_next_ucode)(void **mc, long offset);
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int (*get_matching_microcode)(void *mc, int cpu);
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int (*microcode_sanity_check)(void *mc);
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int (*cpu_request_microcode)(int cpu);
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int (*collect_cpu_info)(int cpu_num, struct cpu_signature *csig);
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void (*apply_microcode)(int cpu);
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void (*microcode_fini_cpu)(int cpu);
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void (*clear_patch)(void *data);
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};
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struct microcode_header_intel {
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unsigned int hdrver;
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unsigned int rev;
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unsigned int date;
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unsigned int sig;
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unsigned int cksum;
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unsigned int ldrver;
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unsigned int pf;
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unsigned int datasize;
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unsigned int totalsize;
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unsigned int reserved[3];
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};
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struct microcode_intel {
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struct microcode_header_intel hdr;
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unsigned int bits[0];
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};
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/* microcode format is extended from prescott processors */
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struct extended_signature {
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unsigned int sig;
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unsigned int pf;
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unsigned int cksum;
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};
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struct extended_sigtable {
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unsigned int count;
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unsigned int cksum;
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unsigned int reserved[3];
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struct extended_signature sigs[0];
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};
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struct equiv_cpu_entry {
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unsigned int installed_cpu;
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unsigned int fixed_errata_mask;
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unsigned int fixed_errata_compare;
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unsigned int equiv_cpu;
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};
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struct microcode_header_amd {
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unsigned int data_code;
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unsigned int patch_id;
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unsigned char mc_patch_data_id[2];
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unsigned char mc_patch_data_len;
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unsigned char init_flag;
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unsigned int mc_patch_data_checksum;
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unsigned int nb_dev_id;
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unsigned int sb_dev_id;
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unsigned char processor_rev_id[2];
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unsigned char nb_rev_id;
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unsigned char sb_rev_id;
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unsigned char bios_api_rev;
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unsigned char reserved1[3];
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unsigned int match_reg[8];
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};
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struct microcode_amd {
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struct microcode_header_amd hdr;
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unsigned int mpb[0];
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};
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struct cpu_signature {
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unsigned int sig;
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unsigned int pf;
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unsigned int rev;
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};
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struct ucode_cpu_info {
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struct cpu_signature cpu_sig;
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int valid;
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union {
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struct microcode_intel *mc_intel;
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struct microcode_amd *mc_amd;
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void *valid_mc;
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} mc;
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};
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extern struct ucode_cpu_info ucode_cpu_info[];
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#endif /* ASM_X86__MICROCODE_H */
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