Adding upstream version 6.6.15.upstream/6.6.15

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 227 insertions, 0 deletions

diff --git a/arch/x86/include/asm/acpi.h b/arch/x86/include/asm/acpi.h
new file mode 100644
index 0000000000..f896eed451
--- /dev/null
+++ b/arch/x86/include/asm/acpi.h
@@ -0,0 +1,227 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+#ifndef _ASM_X86_ACPI_H
+#define _ASM_X86_ACPI_H
+
+/*
+ *  Copyright (C) 2001 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com>
+ *  Copyright (C) 2001 Patrick Mochel <mochel@osdl.org>
+ */
+#include <acpi/proc_cap_intel.h>
+
+#include <asm/numa.h>
+#include <asm/fixmap.h>
+#include <asm/processor.h>
+#include <asm/mmu.h>
+#include <asm/mpspec.h>
+#include <asm/x86_init.h>
+#include <asm/cpufeature.h>
+#include <asm/irq_vectors.h>
+#include <asm/xen/hypervisor.h>
+
+#include <xen/xen.h>
+
+#ifdef CONFIG_ACPI_APEI
+# include <asm/pgtable_types.h>
+#endif
+
+#ifdef CONFIG_ACPI
+extern int acpi_lapic;
+extern int acpi_ioapic;
+extern int acpi_noirq;
+extern int acpi_strict;
+extern int acpi_disabled;
+extern int acpi_pci_disabled;
+extern int acpi_skip_timer_override;
+extern int acpi_use_timer_override;
+extern int acpi_fix_pin2_polarity;
+extern int acpi_disable_cmcff;
+extern bool acpi_int_src_ovr[NR_IRQS_LEGACY];
+
+extern u8 acpi_sci_flags;
+extern u32 acpi_sci_override_gsi;
+void acpi_pic_sci_set_trigger(unsigned int, u16);
+
+struct device;
+
+extern int (*__acpi_register_gsi)(struct device *dev, u32 gsi,
+				  int trigger, int polarity);
+extern void (*__acpi_unregister_gsi)(u32 gsi);
+
+static inline void disable_acpi(void)
+{
+	acpi_disabled = 1;
+	acpi_pci_disabled = 1;
+	acpi_noirq = 1;
+}
+
+extern int acpi_gsi_to_irq(u32 gsi, unsigned int *irq);
+
+static inline void acpi_noirq_set(void) { acpi_noirq = 1; }
+static inline void acpi_disable_pci(void)
+{
+	acpi_pci_disabled = 1;
+	acpi_noirq_set();
+}
+
+/* Low-level suspend routine. */
+extern int (*acpi_suspend_lowlevel)(void);
+
+/* Physical address to resume after wakeup */
+unsigned long acpi_get_wakeup_address(void);
+
+static inline bool acpi_skip_set_wakeup_address(void)
+{
+	return cpu_feature_enabled(X86_FEATURE_XENPV);
+}
+
+#define acpi_skip_set_wakeup_address acpi_skip_set_wakeup_address
+
+/*
+ * Check if the CPU can handle C2 and deeper
+ */
+static inline unsigned int acpi_processor_cstate_check(unsigned int max_cstate)
+{
+	/*
+	 * Early models (<=5) of AMD Opterons are not supposed to go into
+	 * C2 state.
+	 *
+	 * Steppings 0x0A and later are good
+	 */
+	if (boot_cpu_data.x86 == 0x0F &&
+	    boot_cpu_data.x86_vendor == X86_VENDOR_AMD &&
+	    boot_cpu_data.x86_model <= 0x05 &&
+	    boot_cpu_data.x86_stepping < 0x0A)
+		return 1;
+	else if (boot_cpu_has(X86_BUG_AMD_APIC_C1E))
+		return 1;
+	else
+		return max_cstate;
+}
+
+static inline bool arch_has_acpi_pdc(void)
+{
+	struct cpuinfo_x86 *c = &cpu_data(0);
+	return (c->x86_vendor == X86_VENDOR_INTEL ||
+		c->x86_vendor == X86_VENDOR_CENTAUR);
+}
+
+static inline void arch_acpi_set_proc_cap_bits(u32 *cap)
+{
+	struct cpuinfo_x86 *c = &cpu_data(0);
+
+	*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))
+		*cap |= ACPI_PROC_CAP_EST_CAPABILITY_SWSMP;
+
+	if (cpu_has(c, X86_FEATURE_ACPI))
+		*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, C_C1_FFH and
+	 * C2/C3_FFH will be disabled.
+	 */
+	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);
+
+	if (xen_initial_domain()) {
+		/*
+		 * When Linux is running as Xen dom0, the hypervisor is the
+		 * entity in charge of the processor power management, and so
+		 * Xen needs to check the OS capabilities reported in the
+		 * processor capabilities buffer matches what the hypervisor
+		 * driver supports.
+		 */
+		xen_sanitize_proc_cap_bits(cap);
+	}
+}
+
+static inline bool acpi_has_cpu_in_madt(void)
+{
+	return !!acpi_lapic;
+}
+
+#define ACPI_HAVE_ARCH_SET_ROOT_POINTER
+static inline void acpi_arch_set_root_pointer(u64 addr)
+{
+	x86_init.acpi.set_root_pointer(addr);
+}
+
+#define ACPI_HAVE_ARCH_GET_ROOT_POINTER
+static inline u64 acpi_arch_get_root_pointer(void)
+{
+	return x86_init.acpi.get_root_pointer();
+}
+
+void acpi_generic_reduced_hw_init(void);
+
+void x86_default_set_root_pointer(u64 addr);
+u64 x86_default_get_root_pointer(void);
+
+#else /* !CONFIG_ACPI */
+
+#define acpi_lapic 0
+#define acpi_ioapic 0
+#define acpi_disable_cmcff 0
+static inline void acpi_noirq_set(void) { }
+static inline void acpi_disable_pci(void) { }
+static inline void disable_acpi(void) { }
+
+static inline void acpi_generic_reduced_hw_init(void) { }
+
+static inline void x86_default_set_root_pointer(u64 addr) { }
+
+static inline u64 x86_default_get_root_pointer(void)
+{
+	return 0;
+}
+
+#endif /* !CONFIG_ACPI */
+
+#define ARCH_HAS_POWER_INIT	1
+
+#ifdef CONFIG_ACPI_NUMA
+extern int x86_acpi_numa_init(void);
+#endif /* CONFIG_ACPI_NUMA */
+
+struct cper_ia_proc_ctx;
+
+#ifdef CONFIG_ACPI_APEI
+static inline pgprot_t arch_apei_get_mem_attribute(phys_addr_t addr)
+{
+	/*
+	 * We currently have no way to look up the EFI memory map
+	 * attributes for a region in a consistent way, because the
+	 * memmap is discarded after efi_free_boot_services(). So if
+	 * you call efi_mem_attributes() during boot and at runtime,
+	 * you could theoretically see different attributes.
+	 *
+	 * We are yet to see any x86 platforms that require anything
+	 * other than PAGE_KERNEL (some ARM64 platforms require the
+	 * equivalent of PAGE_KERNEL_NOCACHE). Additionally, if SME
+	 * is active, the ACPI information will not be encrypted,
+	 * so return PAGE_KERNEL_NOENC until we know differently.
+	 */
+	return PAGE_KERNEL_NOENC;
+}
+
+int arch_apei_report_x86_error(struct cper_ia_proc_ctx *ctx_info,
+			       u64 lapic_id);
+#else
+static inline int arch_apei_report_x86_error(struct cper_ia_proc_ctx *ctx_info,
+					     u64 lapic_id)
+{
+	return -EINVAL;
+}
+#endif
+
+#define ACPI_TABLE_UPGRADE_MAX_PHYS (max_low_pfn_mapped << PAGE_SHIFT)
+
+#endif /* _ASM_X86_ACPI_H */