mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-11-24 07:30:54 +07:00
x86, microcode, amd: Refactor functions to prepare for early loading
In preparation work for early loading, refactor some common functions that will be shared, and move some struct defines to a common header file. Signed-off-by: Jacob Shin <jacob.shin@amd.com> Link: http://lkml.kernel.org/r/1369940959-2077-4-git-send-email-jacob.shin@amd.com Signed-off-by: H. Peter Anvin <hpa@linux.intel.com> Cc: Fenghua Yu <fenghua.yu@intel.com>
This commit is contained in:
Jacob Shin
H. Peter Anvin
parent
f2b3ee820a
commit
a76096a657
64
arch/x86/include/asm/microcode_amd.h
Normal file
64
arch/x86/include/asm/microcode_amd.h
Normal file
@ -0,0 +1,64 @@
|
||||
#ifndef _ASM_X86_MICROCODE_AMD_H
|
||||
#define _ASM_X86_MICROCODE_AMD_H
|
||||
|
||||
#include <asm/microcode.h>
|
||||
|
||||
#define UCODE_MAGIC 0x00414d44
|
||||
#define UCODE_EQUIV_CPU_TABLE_TYPE 0x00000000
|
||||
#define UCODE_UCODE_TYPE 0x00000001
|
||||
|
||||
#define SECTION_HDR_SIZE 8
|
||||
#define CONTAINER_HDR_SZ 12
|
||||
|
||||
struct equiv_cpu_entry {
|
||||
u32 installed_cpu;
|
||||
u32 fixed_errata_mask;
|
||||
u32 fixed_errata_compare;
|
||||
u16 equiv_cpu;
|
||||
u16 res;
|
||||
} __attribute__((packed));
|
||||
|
||||
struct microcode_header_amd {
|
||||
u32 data_code;
|
||||
u32 patch_id;
|
||||
u16 mc_patch_data_id;
|
||||
u8 mc_patch_data_len;
|
||||
u8 init_flag;
|
||||
u32 mc_patch_data_checksum;
|
||||
u32 nb_dev_id;
|
||||
u32 sb_dev_id;
|
||||
u16 processor_rev_id;
|
||||
u8 nb_rev_id;
|
||||
u8 sb_rev_id;
|
||||
u8 bios_api_rev;
|
||||
u8 reserved1[3];
|
||||
u32 match_reg[8];
|
||||
} __attribute__((packed));
|
||||
|
||||
struct microcode_amd {
|
||||
struct microcode_header_amd hdr;
|
||||
unsigned int mpb[0];
|
||||
};
|
||||
|
||||
static inline u16 find_equiv_id(struct equiv_cpu_entry *equiv_cpu_table,
|
||||
unsigned int sig)
|
||||
{
|
||||
int i = 0;
|
||||
|
||||
if (!equiv_cpu_table)
|
||||
return 0;
|
||||
|
||||
while (equiv_cpu_table[i].installed_cpu != 0) {
|
||||
if (sig == equiv_cpu_table[i].installed_cpu)
|
||||
return equiv_cpu_table[i].equiv_cpu;
|
||||
|
||||
i++;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
extern int __apply_microcode_amd(struct microcode_amd *mc_amd);
|
||||
extern int apply_microcode_amd(int cpu);
|
||||
extern enum ucode_state load_microcode_amd(int cpu, const u8 *data, size_t size);
|
||||
|
||||
#endif /* _ASM_X86_MICROCODE_AMD_H */
|
||||
@ -31,48 +31,12 @@
|
||||
#include <asm/microcode.h>
|
||||
#include <asm/processor.h>
|
||||
#include <asm/msr.h>
|
||||
#include <asm/microcode_amd.h>
|
||||
|
||||
MODULE_DESCRIPTION("AMD Microcode Update Driver");
|
||||
MODULE_AUTHOR("Peter Oruba");
|
||||
MODULE_LICENSE("GPL v2");
|
||||
|
||||
#define UCODE_MAGIC 0x00414d44
|
||||
#define UCODE_EQUIV_CPU_TABLE_TYPE 0x00000000
|
||||
#define UCODE_UCODE_TYPE 0x00000001
|
||||
|
||||
struct equiv_cpu_entry {
|
||||
u32 installed_cpu;
|
||||
u32 fixed_errata_mask;
|
||||
u32 fixed_errata_compare;
|
||||
u16 equiv_cpu;
|
||||
u16 res;
|
||||
} __attribute__((packed));
|
||||
|
||||
struct microcode_header_amd {
|
||||
u32 data_code;
|
||||
u32 patch_id;
|
||||
u16 mc_patch_data_id;
|
||||
u8 mc_patch_data_len;
|
||||
u8 init_flag;
|
||||
u32 mc_patch_data_checksum;
|
||||
u32 nb_dev_id;
|
||||
u32 sb_dev_id;
|
||||
u16 processor_rev_id;
|
||||
u8 nb_rev_id;
|
||||
u8 sb_rev_id;
|
||||
u8 bios_api_rev;
|
||||
u8 reserved1[3];
|
||||
u32 match_reg[8];
|
||||
} __attribute__((packed));
|
||||
|
||||
struct microcode_amd {
|
||||
struct microcode_header_amd hdr;
|
||||
unsigned int mpb[0];
|
||||
};
|
||||
|
||||
#define SECTION_HDR_SIZE 8
|
||||
#define CONTAINER_HDR_SZ 12
|
||||
|
||||
static struct equiv_cpu_entry *equiv_cpu_table;
|
||||
|
||||
struct ucode_patch {
|
||||
@ -84,21 +48,10 @@ struct ucode_patch {
|
||||
|
||||
static LIST_HEAD(pcache);
|
||||
|
||||
static u16 find_equiv_id(unsigned int cpu)
|
||||
static u16 __find_equiv_id(unsigned int cpu)
|
||||
{
|
||||
struct ucode_cpu_info *uci = ucode_cpu_info + cpu;
|
||||
int i = 0;
|
||||
|
||||
if (!equiv_cpu_table)
|
||||
return 0;
|
||||
|
||||
while (equiv_cpu_table[i].installed_cpu != 0) {
|
||||
if (uci->cpu_sig.sig == equiv_cpu_table[i].installed_cpu)
|
||||
return equiv_cpu_table[i].equiv_cpu;
|
||||
|
||||
i++;
|
||||
}
|
||||
return 0;
|
||||
return find_equiv_id(equiv_cpu_table, uci->cpu_sig.sig);
|
||||
}
|
||||
|
||||
static u32 find_cpu_family_by_equiv_cpu(u16 equiv_cpu)
|
||||
@ -163,7 +116,7 @@ static struct ucode_patch *find_patch(unsigned int cpu)
|
||||
{
|
||||
u16 equiv_id;
|
||||
|
||||
equiv_id = find_equiv_id(cpu);
|
||||
equiv_id = __find_equiv_id(cpu);
|
||||
if (!equiv_id)
|
||||
return NULL;
|
||||
|
||||
@ -215,7 +168,21 @@ static unsigned int verify_patch_size(int cpu, u32 patch_size,
|
||||
return patch_size;
|
||||
}
|
||||
|
||||
static int apply_microcode_amd(int cpu)
|
||||
int __apply_microcode_amd(struct microcode_amd *mc_amd)
|
||||
{
|
||||
u32 rev, dummy;
|
||||
|
||||
wrmsrl(MSR_AMD64_PATCH_LOADER, (u64)(long)&mc_amd->hdr.data_code);
|
||||
|
||||
/* verify patch application was successful */
|
||||
rdmsr(MSR_AMD64_PATCH_LEVEL, rev, dummy);
|
||||
if (rev != mc_amd->hdr.patch_id)
|
||||
return -1;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
int apply_microcode_amd(int cpu)
|
||||
{
|
||||
struct cpuinfo_x86 *c = &cpu_data(cpu);
|
||||
struct microcode_amd *mc_amd;
|
||||
@ -242,19 +209,15 @@ static int apply_microcode_amd(int cpu)
|
||||
return 0;
|
||||
}
|
||||
|
||||
wrmsrl(MSR_AMD64_PATCH_LOADER, (u64)(long)&mc_amd->hdr.data_code);
|
||||
|
||||
/* verify patch application was successful */
|
||||
rdmsr(MSR_AMD64_PATCH_LEVEL, rev, dummy);
|
||||
if (rev != mc_amd->hdr.patch_id) {
|
||||
if (__apply_microcode_amd(mc_amd))
|
||||
pr_err("CPU%d: update failed for patch_level=0x%08x\n",
|
||||
cpu, mc_amd->hdr.patch_id);
|
||||
return -1;
|
||||
}
|
||||
cpu, mc_amd->hdr.patch_id);
|
||||
else
|
||||
pr_info("CPU%d: new patch_level=0x%08x\n", cpu,
|
||||
mc_amd->hdr.patch_id);
|
||||
|
||||
pr_info("CPU%d: new patch_level=0x%08x\n", cpu, rev);
|
||||
uci->cpu_sig.rev = rev;
|
||||
c->microcode = rev;
|
||||
uci->cpu_sig.rev = mc_amd->hdr.patch_id;
|
||||
c->microcode = mc_amd->hdr.patch_id;
|
||||
|
||||
return 0;
|
||||
}
|
||||
@ -364,7 +327,7 @@ static int verify_and_add_patch(unsigned int cpu, u8 *fw, unsigned int leftover)
|
||||
return crnt_size;
|
||||
}
|
||||
|
||||
static enum ucode_state load_microcode_amd(int cpu, const u8 *data, size_t size)
|
||||
static enum ucode_state __load_microcode_amd(int cpu, const u8 *data, size_t size)
|
||||
{
|
||||
enum ucode_state ret = UCODE_ERROR;
|
||||
unsigned int leftover;
|
||||
@ -398,6 +361,21 @@ static enum ucode_state load_microcode_amd(int cpu, const u8 *data, size_t size)
|
||||
return UCODE_OK;
|
||||
}
|
||||
|
||||
enum ucode_state load_microcode_amd(int cpu, const u8 *data, size_t size)
|
||||
{
|
||||
enum ucode_state ret;
|
||||
|
||||
/* free old equiv table */
|
||||
free_equiv_cpu_table();
|
||||
|
||||
ret = __load_microcode_amd(cpu, data, size);
|
||||
|
||||
if (ret != UCODE_OK)
|
||||
cleanup();
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
/*
|
||||
* AMD microcode firmware naming convention, up to family 15h they are in
|
||||
* the legacy file:
|
||||
@ -440,12 +418,7 @@ static enum ucode_state request_microcode_amd(int cpu, struct device *device,
|
||||
goto fw_release;
|
||||
}
|
||||
|
||||
/* free old equiv table */
|
||||
free_equiv_cpu_table();
|
||||
|
||||
ret = load_microcode_amd(cpu, fw->data, fw->size);
|
||||
if (ret != UCODE_OK)
|
||||
cleanup();
|
||||
|
||||
fw_release:
|
||||
release_firmware(fw);
|
||||
|
||||
Loading…
Reference in New Issue
Block a user