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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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6c5807d7bc
The only thing arch-specific about calling _PDC is what bits get set in the input obj_list buffer. There's no need for several levels of indirection to twiddle those bits. Additionally, since we're just messing around with a buffer, we can simplify the interface; no need to pass around the entire struct acpi_processor * just to get at the buffer. 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: Alex Chiang <achiang@hp.com> Signed-off-by: Len Brown <len.brown@intel.com>
202 lines
5.3 KiB
C
202 lines
5.3 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/processor.h>
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#include <asm/mmu.h>
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#include <asm/mpspec.h>
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#define COMPILER_DEPENDENT_INT64 long long
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#define COMPILER_DEPENDENT_UINT64 unsigned long long
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/*
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* Calling conventions:
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*
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* ACPI_SYSTEM_XFACE - Interfaces to host OS (handlers, threads)
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* ACPI_EXTERNAL_XFACE - External ACPI interfaces
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* ACPI_INTERNAL_XFACE - Internal ACPI interfaces
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* ACPI_INTERNAL_VAR_XFACE - Internal variable-parameter list interfaces
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*/
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#define ACPI_SYSTEM_XFACE
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#define ACPI_EXTERNAL_XFACE
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#define ACPI_INTERNAL_XFACE
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#define ACPI_INTERNAL_VAR_XFACE
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/* Asm macros */
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#define ACPI_ASM_MACROS
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#define BREAKPOINT3
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#define ACPI_DISABLE_IRQS() local_irq_disable()
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#define ACPI_ENABLE_IRQS() local_irq_enable()
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#define ACPI_FLUSH_CPU_CACHE() wbinvd()
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int __acpi_acquire_global_lock(unsigned int *lock);
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int __acpi_release_global_lock(unsigned int *lock);
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#define ACPI_ACQUIRE_GLOBAL_LOCK(facs, Acq) \
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((Acq) = __acpi_acquire_global_lock(&facs->global_lock))
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#define ACPI_RELEASE_GLOBAL_LOCK(facs, Acq) \
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((Acq) = __acpi_release_global_lock(&facs->global_lock))
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/*
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* Math helper asm macros
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*/
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#define ACPI_DIV_64_BY_32(n_hi, n_lo, d32, q32, r32) \
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asm("divl %2;" \
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: "=a"(q32), "=d"(r32) \
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: "r"(d32), \
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"0"(n_lo), "1"(n_hi))
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#define ACPI_SHIFT_RIGHT_64(n_hi, n_lo) \
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asm("shrl $1,%2 ;" \
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"rcrl $1,%3;" \
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: "=r"(n_hi), "=r"(n_lo) \
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: "0"(n_hi), "1"(n_lo))
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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_ht;
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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 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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static inline void disable_acpi(void)
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{
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acpi_disabled = 1;
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acpi_ht = 0;
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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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/* routines for saving/restoring kernel state */
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extern int acpi_save_state_mem(void);
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extern void acpi_restore_state_mem(void);
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extern unsigned long acpi_wakeup_address;
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/* early initialization routine */
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extern void acpi_reserve_wakeup_memory(void);
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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 (boot_cpu_has(X86_FEATURE_AMDC1E))
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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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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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struct bootnode;
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#ifdef CONFIG_ACPI_NUMA
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extern int acpi_numa;
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extern int acpi_get_nodes(struct bootnode *physnodes);
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extern int acpi_scan_nodes(unsigned long start, unsigned long end);
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#define NR_NODE_MEMBLKS (MAX_NUMNODES*2)
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extern void acpi_fake_nodes(const struct bootnode *fake_nodes,
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int num_nodes);
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#else
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static inline void acpi_fake_nodes(const struct bootnode *fake_nodes,
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int num_nodes)
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{
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}
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#endif
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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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