summaryrefslogtreecommitdiff
path: root/arch/x86/include/asm/acpi.h
diff options
context:
space:
mode:
Diffstat (limited to 'arch/x86/include/asm/acpi.h')
-rw-r--r--arch/x86/include/asm/acpi.h109
1 files changed, 79 insertions, 30 deletions
diff --git a/arch/x86/include/asm/acpi.h b/arch/x86/include/asm/acpi.h
index 2f01eb4d6208..a03aa6f999d1 100644
--- a/arch/x86/include/asm/acpi.h
+++ b/arch/x86/include/asm/acpi.h
@@ -1,37 +1,24 @@
+/* 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>
- *
- * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*/
-#include <acpi/pdc_intel.h>
+#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/realmode.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>
@@ -48,6 +35,7 @@ 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;
@@ -68,6 +56,8 @@ static inline void disable_acpi(void)
extern int acpi_gsi_to_irq(u32 gsi, unsigned int *irq);
+extern int acpi_blacklisted(void);
+
static inline void acpi_noirq_set(void) { acpi_noirq = 1; }
static inline void acpi_disable_pci(void)
{
@@ -79,7 +69,21 @@ static inline void acpi_disable_pci(void)
extern int (*acpi_suspend_lowlevel)(void);
/* Physical address to resume after wakeup */
-#define acpi_wakeup_address ((unsigned long)(real_mode_header->wakeup_start))
+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
+
+union acpi_subtable_headers;
+
+int __init acpi_parse_mp_wake(union acpi_subtable_headers *header,
+ const unsigned long end);
+
+void asm_acpi_mp_play_dead(u64 reset_vector, u64 pgd_pa);
/*
* Check if the CPU can handle C2 and deeper
@@ -110,23 +114,42 @@ 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);
+
+ 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)
@@ -134,16 +157,31 @@ static inline bool acpi_has_cpu_in_madt(void)
return !!acpi_lapic;
}
+#define ACPI_HAVE_ARCH_SET_ROOT_POINTER
+static __always_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)
+static __always_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);
+#ifdef CONFIG_XEN_PV
+/* A Xen PV domain needs a special acpi_os_ioremap() handling. */
+extern void __iomem * (*acpi_os_ioremap)(acpi_physical_address phys,
+ acpi_size size);
+void __iomem *x86_acpi_os_ioremap(acpi_physical_address phys, acpi_size size);
+#define acpi_os_ioremap acpi_os_ioremap
+#endif
+
#else /* !CONFIG_ACPI */
#define acpi_lapic 0
@@ -155,6 +193,8 @@ 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;
@@ -168,7 +208,7 @@ static inline u64 x86_default_get_root_pointer(void)
extern int x86_acpi_numa_init(void);
#endif /* CONFIG_ACPI_NUMA */
-#define acpi_unlazy_tlb(x) leave_mm(x)
+struct cper_ia_proc_ctx;
#ifdef CONFIG_ACPI_APEI
static inline pgprot_t arch_apei_get_mem_attribute(phys_addr_t addr)
@@ -188,6 +228,15 @@ static inline pgprot_t arch_apei_get_mem_attribute(phys_addr_t addr)
*/
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)
generated by cgit (git 2.34.1) at 2025-12-24 22:56:34 +0000