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07d8391433
There is a mis-order inclusion for <asm/acpi.h>.
As we will enforce including <linux/acpi.h> for all Linux ACPI users, we
can find the inclusion order is as follows:
<linux/acpi.h>
<acpi/acpi.h>
<acpi/platform/acenv.h>
(acenv.h before including aclinux.h)
<acpi/platform/aclinux.h>
...........................................................................
(aclinux.h before including asm/acpi.h)
<asm/acpi.h> @Redundant@
(ACPICA specific stuff)
...........................................................................
...........................................................................
(Linux ACPI specific stuff) ? - - - - - - - - - - - - +
(aclinux.h after including asm/acpi.h) @Invisible@ |
(acenv.h after including aclinux.h) @Invisible@ |
other ACPICA headers @Invisible@ |
............................................................|..............
<acpi/acpi_bus.h> |
<acpi/acpi_drivers.h> |
<asm/acpi.h> (Excluded) |
(Linux ACPI specific stuff) ! <- - - - - - - - - - - - - +
NOTE that, in ACPICA, <acpi/platform/acenv.h> is more like Kconfig
generated <generated/autoconf.h> for Linux, it is meant to be included
before including any ACPICA code.
In the above figure, there is a question mark for "Linux ACPI specific
stuff" in <asm/acpi.h> which should be included after including all other
ACPICA header files. Thus they really need to be moved to the position
marked with exclaimation mark or the definitions in the blocks marked with
"@Invisible@" will be invisible to such architecture specific "Linux ACPI
specific stuff" header blocks. This leaves 2 issues:
1. All environmental definitions in these blocks should have a copy in the
area marked with "@Redundant@" if they are required by the "Linux ACPI
specific stuff".
2. We cannot use any ACPICA defined types in <asm/acpi.h>.
This patch splits architecture specific ACPICA stuff from <asm/acpi.h> to
fix this issue.
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
145 lines
3.8 KiB
C
145 lines
3.8 KiB
C
#ifndef _ASM_X86_ACPI_H
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#define _ASM_X86_ACPI_H
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/*
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* Copyright (C) 2001 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com>
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* Copyright (C) 2001 Patrick Mochel <mochel@osdl.org>
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*
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* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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*/
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#include <acpi/pdc_intel.h>
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#include <asm/numa.h>
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#include <asm/fixmap.h>
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#include <asm/processor.h>
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#include <asm/mmu.h>
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#include <asm/mpspec.h>
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#include <asm/realmode.h>
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#ifdef CONFIG_ACPI
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extern int acpi_lapic;
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extern int acpi_ioapic;
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extern int acpi_noirq;
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extern int acpi_strict;
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extern int acpi_disabled;
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extern int acpi_pci_disabled;
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extern int acpi_skip_timer_override;
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extern int acpi_use_timer_override;
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extern int acpi_fix_pin2_polarity;
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extern int acpi_disable_cmcff;
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extern u8 acpi_sci_flags;
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extern int acpi_sci_override_gsi;
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void acpi_pic_sci_set_trigger(unsigned int, u16);
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extern int (*__acpi_register_gsi)(struct device *dev, u32 gsi,
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int trigger, int polarity);
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static inline void disable_acpi(void)
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{
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acpi_disabled = 1;
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acpi_pci_disabled = 1;
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acpi_noirq = 1;
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}
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extern int acpi_gsi_to_irq(u32 gsi, unsigned int *irq);
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static inline void acpi_noirq_set(void) { acpi_noirq = 1; }
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static inline void acpi_disable_pci(void)
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{
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acpi_pci_disabled = 1;
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acpi_noirq_set();
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}
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/* Low-level suspend routine. */
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extern int (*acpi_suspend_lowlevel)(void);
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/* Physical address to resume after wakeup */
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#define acpi_wakeup_address ((unsigned long)(real_mode_header->wakeup_start))
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/*
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* Check if the CPU can handle C2 and deeper
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*/
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static inline unsigned int acpi_processor_cstate_check(unsigned int max_cstate)
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{
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/*
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* Early models (<=5) of AMD Opterons are not supposed to go into
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* C2 state.
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*
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* Steppings 0x0A and later are good
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*/
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if (boot_cpu_data.x86 == 0x0F &&
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boot_cpu_data.x86_vendor == X86_VENDOR_AMD &&
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boot_cpu_data.x86_model <= 0x05 &&
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boot_cpu_data.x86_mask < 0x0A)
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return 1;
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else if (amd_e400_c1e_detected)
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return 1;
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else
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return max_cstate;
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}
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static inline bool arch_has_acpi_pdc(void)
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{
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struct cpuinfo_x86 *c = &cpu_data(0);
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return (c->x86_vendor == X86_VENDOR_INTEL ||
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c->x86_vendor == X86_VENDOR_CENTAUR);
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}
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static inline void arch_acpi_set_pdc_bits(u32 *buf)
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{
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struct cpuinfo_x86 *c = &cpu_data(0);
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buf[2] |= ACPI_PDC_C_CAPABILITY_SMP;
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if (cpu_has(c, X86_FEATURE_EST))
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buf[2] |= ACPI_PDC_EST_CAPABILITY_SWSMP;
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if (cpu_has(c, X86_FEATURE_ACPI))
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buf[2] |= ACPI_PDC_T_FFH;
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/*
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* If mwait/monitor is unsupported, C2/C3_FFH will be disabled
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*/
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if (!cpu_has(c, X86_FEATURE_MWAIT))
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buf[2] &= ~(ACPI_PDC_C_C2C3_FFH);
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}
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#else /* !CONFIG_ACPI */
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#define acpi_lapic 0
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#define acpi_ioapic 0
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#define acpi_disable_cmcff 0
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static inline void acpi_noirq_set(void) { }
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static inline void acpi_disable_pci(void) { }
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static inline void disable_acpi(void) { }
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#endif /* !CONFIG_ACPI */
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#define ARCH_HAS_POWER_INIT 1
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#ifdef CONFIG_ACPI_NUMA
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extern int acpi_numa;
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extern int x86_acpi_numa_init(void);
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#endif /* CONFIG_ACPI_NUMA */
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#define acpi_unlazy_tlb(x) leave_mm(x)
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#endif /* _ASM_X86_ACPI_H */
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