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Merge tag 'ras_core_for_v6.4_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

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Pull RAS updates from Borislav Petkov:

 - Just cleanups and fixes this time around: make threshold_ktype const,
   an objtool fix and use proper size for a bitmap

* tag 'ras_core_for_v6.4_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/MCE/AMD: Use an u64 for bank_map
  x86/mce: Always inline old MCA stubs
  x86/MCE/AMD: Make kobj_type structure constant
This commit is contained in:
Linus Torvalds
2023-04-25 09:56:33 -07:00
parent e94ee641f9 4c1cdec319
commit d3464152e5
2 changed files with 13 additions and 13 deletions
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16
arch/x86/kernel/cpu/mce/amd.c
View File

@@ -235,10 +235,10 @@ static DEFINE_PER_CPU(struct threshold_bank **, threshold_banks);
* A list of the banks enabled on each logical CPU. Controls which respective
* descriptors to initialize later in mce_threshold_create_device().
*/
static DEFINE_PER_CPU(unsigned int, bank_map);
static DEFINE_PER_CPU(u64, bank_map);
/* Map of banks that have more than MCA_MISC0 available. */
static DEFINE_PER_CPU(u32, smca_misc_banks_map);
static DEFINE_PER_CPU(u64, smca_misc_banks_map);
static void amd_threshold_interrupt(void);
static void amd_deferred_error_interrupt(void);
@@ -267,7 +267,7 @@ static void smca_set_misc_banks_map(unsigned int bank, unsigned int cpu)
return;
if (low & MASK_BLKPTR_LO)
per_cpu(smca_misc_banks_map, cpu) |= BIT(bank);
per_cpu(smca_misc_banks_map, cpu) |= BIT_ULL(bank);
}
@@ -530,7 +530,7 @@ static u32 smca_get_block_address(unsigned int bank, unsigned int block,
if (!block)
return MSR_AMD64_SMCA_MCx_MISC(bank);
if (!(per_cpu(smca_misc_banks_map, cpu) & BIT(bank)))
if (!(per_cpu(smca_misc_banks_map, cpu) & BIT_ULL(bank)))
return 0;
return MSR_AMD64_SMCA_MCx_MISCy(bank, block - 1);
@@ -574,7 +574,7 @@ prepare_threshold_block(unsigned int bank, unsigned int block, u32 addr,
int new;
if (!block)
per_cpu(bank_map, cpu) |= (1 << bank);
per_cpu(bank_map, cpu) |= BIT_ULL(bank);
memset(&b, 0, sizeof(b));
b.cpu = cpu;
@@ -878,7 +878,7 @@ static void amd_threshold_interrupt(void)
return;
for (bank = 0; bank < this_cpu_read(mce_num_banks); ++bank) {
if (!(per_cpu(bank_map, cpu) & (1 << bank)))
if (!(per_cpu(bank_map, cpu) & BIT_ULL(bank)))
continue;
first_block = bp[bank]->blocks;
@@ -1029,7 +1029,7 @@ static const struct sysfs_ops threshold_ops = {
static void threshold_block_release(struct kobject *kobj);
static struct kobj_type threshold_ktype = {
static const struct kobj_type threshold_ktype = {
.sysfs_ops = &threshold_ops,
.default_groups = default_groups,
.release = threshold_block_release,
@@ -1356,7 +1356,7 @@ int mce_threshold_create_device(unsigned int cpu)
return -ENOMEM;
for (bank = 0; bank < numbanks; ++bank) {
if (!(this_cpu_read(bank_map) & (1 << bank)))
if (!(this_cpu_read(bank_map) & BIT_ULL(bank)))
continue;
err = threshold_create_bank(bp, cpu, bank);
if (err) {

10
arch/x86/kernel/cpu/mce/internal.h
View File

@@ -244,11 +244,11 @@ noinstr void pentium_machine_check(struct pt_regs *regs);
noinstr void winchip_machine_check(struct pt_regs *regs);
static inline void enable_p5_mce(void) { mce_p5_enabled = 1; }
#else
static inline void intel_p5_mcheck_init(struct cpuinfo_x86 *c) {}
static inline void winchip_mcheck_init(struct cpuinfo_x86 *c) {}
static inline void enable_p5_mce(void) {}
static inline void pentium_machine_check(struct pt_regs *regs) {}
static inline void winchip_machine_check(struct pt_regs *regs) {}
static __always_inline void intel_p5_mcheck_init(struct cpuinfo_x86 *c) {}
static __always_inline void winchip_mcheck_init(struct cpuinfo_x86 *c) {}
static __always_inline void enable_p5_mce(void) {}
static __always_inline void pentium_machine_check(struct pt_regs *regs) {}
static __always_inline void winchip_machine_check(struct pt_regs *regs) {}
#endif
noinstr u64 mce_rdmsrl(u32 msr);