Merge branch 'acpi-processor'

Merge ACPI processor driver changes for 6.6-rc1:

 - Support obtaining physical CPU ID from MADT on LoongArch (Bibo Mao).

 - Convert ACPI CPU initialization to using _OSC instead of _PDC that
   has been depreceted since 2018 and dropped from the specification in
   ACPI 6.5 (Michal Wilczynski, Rafael Wysocki).

* acpi-processor:
  ACPI: processor: LoongArch: Get physical ID from MADT
  ACPI: processor: Refine messages in acpi_early_processor_control_setup()
  ACPI: processor: Remove acpi_hwp_native_thermal_lvt_osc()
  ACPI: processor: Use _OSC to convey OSPM processor support information
  ACPI: processor: Introduce acpi_processor_osc()
  ACPI: processor: Set CAP_SMP_T_SWCOORD in arch_acpi_set_proc_cap_bits()
  ACPI: processor: Clear C_C2C3_FFH and C_C1_FFH in arch_acpi_set_proc_cap_bits()
  ACPI: processor: Rename ACPI_PDC symbols
  ACPI: processor: Refactor arch_acpi_set_pdc_bits()
  ACPI: processor: Move processor_physically_present() to acpi_processor.c
  ACPI: processor: Move MWAIT quirk out of acpi_processor.c

3 files changed, 23 insertions, 15 deletions

diff --git a/arch/ia64/include/asm/acpi.h b/arch/ia64/include/asm/acpi.h
index 87927eb824cc..58500a964238 100644
--- a/arch/ia64/include/asm/acpi.h
+++ b/arch/ia64/include/asm/acpi.h
@@ -11,7 +11,7 @@
 
 #ifdef __KERNEL__
 
-#include <acpi/pdc_intel.h>
+#include <acpi/proc_cap_intel.h>
 
 #include <linux/init.h>
 #include <linux/numa.h>
@@ -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_PROC_CAP_EST_CAPABILITY_SMP;
 }
 
 #ifdef CONFIG_ACPI_NUMA
diff --git a/arch/x86/include/asm/acpi.h b/arch/x86/include/asm/acpi.h
index 2888c0ee4df0..c8a7fc23f63c 100644
--- a/arch/x86/include/asm/acpi.h
+++ b/arch/x86/include/asm/acpi.h
@@ -6,7 +6,7 @@
  *  Copyright (C) 2001 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com>
  *  Copyright (C) 2001 Patrick Mochel <mochel@osdl.org>
  */
-#include <acpi/pdc_intel.h>
+#include <acpi/proc_cap_intel.h>
 
 #include <asm/numa.h>
 #include <asm/fixmap.h>
@@ -102,23 +102,31 @@ 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_PROC_CAP_C_CAPABILITY_SMP;
+
+	/* Enable coordination with firmware's _TSD info */
+	*cap |= ACPI_PROC_CAP_SMP_T_SWCOORD;
 
 	if (cpu_has(c, X86_FEATURE_EST))
-		buf[2] |= ACPI_PDC_EST_CAPABILITY_SWSMP;
+		*cap |= ACPI_PROC_CAP_EST_CAPABILITY_SWSMP;
 
 	if (cpu_has(c, X86_FEATURE_ACPI))
-		buf[2] |= ACPI_PDC_T_FFH;
+		*cap |= ACPI_PROC_CAP_T_FFH;
+
+	if (cpu_has(c, X86_FEATURE_HWP))
+		*cap |= ACPI_PROC_CAP_COLLAB_PROC_PERF;
 
 	/*
-	 * If mwait/monitor is unsupported, C2/C3_FFH will be disabled
+	 * If mwait/monitor is unsupported, C_C1_FFH and
+	 * C2/C3_FFH will be disabled.
 	 */
-	if (!cpu_has(c, X86_FEATURE_MWAIT))
-		buf[2] &= ~(ACPI_PDC_C_C2C3_FFH);
+	if (!cpu_has(c, X86_FEATURE_MWAIT) ||
+	    boot_option_idle_override == IDLE_NOMWAIT)
+		*cap &= ~(ACPI_PROC_CAP_C_C1_FFH | ACPI_PROC_CAP_C_C2C3_FFH);
 }
 
 static inline bool acpi_has_cpu_in_madt(void)
diff --git a/arch/x86/xen/enlighten_pv.c b/arch/x86/xen/enlighten_pv.c
index 93b658248d01..a3864e2167a8 100644
--- a/arch/x86/xen/enlighten_pv.c
+++ b/arch/x86/xen/enlighten_pv.c
@@ -79,7 +79,7 @@
 #ifdef CONFIG_ACPI
 #include <linux/acpi.h>
 #include <asm/acpi.h>
-#include <acpi/pdc_intel.h>
+#include <acpi/proc_cap_intel.h>
 #include <acpi/processor.h>
 #include <xen/interface/platform.h>
 #endif
@@ -288,17 +288,17 @@ static bool __init xen_check_mwait(void)
 
 	native_cpuid(&ax, &bx, &cx, &dx);
 
-	/* Ask the Hypervisor whether to clear ACPI_PDC_C_C2C3_FFH. If so,
+	/* Ask the Hypervisor whether to clear ACPI_PROC_CAP_C_C2C3_FFH. If so,
 	 * don't expose MWAIT_LEAF and let ACPI pick the IOPORT version of C3.
 	 */
 	buf[0] = ACPI_PDC_REVISION_ID;
 	buf[1] = 1;
-	buf[2] = (ACPI_PDC_C_CAPABILITY_SMP | ACPI_PDC_EST_CAPABILITY_SWSMP);
+	buf[2] = (ACPI_PROC_CAP_C_CAPABILITY_SMP | ACPI_PROC_CAP_EST_CAPABILITY_SWSMP);
 
 	set_xen_guest_handle(op.u.set_pminfo.pdc, buf);
 
 	if ((HYPERVISOR_platform_op(&op) == 0) &&
-	    (buf[2] & (ACPI_PDC_C_C1_FFH | ACPI_PDC_C_C2C3_FFH))) {
+	    (buf[2] & (ACPI_PROC_CAP_C_C1_FFH | ACPI_PROC_CAP_C_C2C3_FFH))) {
 		cpuid_leaf5_ecx_val = cx;
 		cpuid_leaf5_edx_val = dx;
 	}