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ACPI: processor: Refactor arch_acpi_set_pdc_bits()

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The capabilities buffer modified by the arch_acpi_set_pdc_bits() is not
_PDC-specific, as it can be used by _OSC too.

Change the name of that function to better reflect its independence from
_PDC and make it take the capabilities buffer address as the argument
directly, without any offset, as _OSC and _PDC use different capabilities
buffer offsets.

No intentional functional impact.

Suggested-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Michal Wilczynski <michal.wilczynski@intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
[ rjw: Subject and changelog edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Michal Wilczynski 2023-07-10 17:03:31 +03:00 committed by Rafael J. Wysocki
parent 3272a4aadc
commit c5e4d05db8
3 changed files with 8 additions and 8 deletions
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4
arch/ia64/include/asm/acpi.h
View File

@ -69,9 +69,9 @@ extern int __initdata nid_to_pxm_map[MAX_NUMNODES];
#endif
static inline bool arch_has_acpi_pdc(void) { return true; }
static inline void arch_acpi_set_pdc_bits(u32 *buf)
static inline void arch_acpi_set_proc_cap_bits(u32 *cap)
{
buf[2] |= ACPI_PDC_EST_CAPABILITY_SMP;
*cap |= ACPI_PDC_EST_CAPABILITY_SMP;
}
#ifdef CONFIG_ACPI_NUMA

10
arch/x86/include/asm/acpi.h
View File

@ -100,23 +100,23 @@ static inline bool arch_has_acpi_pdc(void)
c->x86_vendor == X86_VENDOR_CENTAUR);
}
static inline void arch_acpi_set_pdc_bits(u32 *buf)
static inline void arch_acpi_set_proc_cap_bits(u32 *cap)
{
struct cpuinfo_x86 *c = &cpu_data(0);
buf[2] |= ACPI_PDC_C_CAPABILITY_SMP;
*cap |= ACPI_PDC_C_CAPABILITY_SMP;
if (cpu_has(c, X86_FEATURE_EST))
buf[2] |= ACPI_PDC_EST_CAPABILITY_SWSMP;
*cap |= ACPI_PDC_EST_CAPABILITY_SWSMP;
if (cpu_has(c, X86_FEATURE_ACPI))
buf[2] |= ACPI_PDC_T_FFH;
*cap |= ACPI_PDC_T_FFH;
/*
* If mwait/monitor is unsupported, C2/C3_FFH will be disabled
*/
if (!cpu_has(c, X86_FEATURE_MWAIT))
buf[2] &= ~(ACPI_PDC_C_C2C3_FFH);
*cap &= ~(ACPI_PDC_C_C2C3_FFH);
}
static inline bool acpi_has_cpu_in_madt(void)

2
drivers/acpi/processor_pdc.c
View File

@ -24,7 +24,7 @@ static void acpi_set_pdc_bits(u32 *buf)
buf[2] = ACPI_PDC_SMP_T_SWCOORD;
/* Twiddle arch-specific bits needed for _PDC */
arch_acpi_set_pdc_bits(buf);
arch_acpi_set_proc_cap_bits(&buf[2]);
}
static struct acpi_object_list *acpi_processor_alloc_pdc(void)