avr/qmk/ChibiOS - [no description]

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author	Giovanni Di Sirio <gdisirio@gmail.com>	2018-05-26 07:52:14 +0000
committer	Giovanni Di Sirio <gdisirio@gmail.com>	2018-05-26 07:52:14 +0000
commit	da16bc2472d4ba0a18ad075746202d72b930de53 (patch)
tree	4ce1b57a0f383de402e8ca35534d4221670cca27 /os
parent	6463abed02dc11e38816b53a5495be80a9f121c6 (diff)
download	ChibiOS-da16bc2472d4ba0a18ad075746202d72b930de53.tar.gz ChibiOS-da16bc2472d4ba0a18ad075746202d72b930de53.tar.bz2 ChibiOS-da16bc2472d4ba0a18ad075746202d72b930de53.zip

Fixed bug #948.

git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@12048 110e8d01-0319-4d1e-a829-52ad28d1bb01

Diffstat (limited to 'os')

-rw-r--r--

os/hal/ports/STM32/STM32L4xx/platform_l432.mk

1 files changed, 1 insertions, 1 deletions

/* * acpi.c - Architecture-Specific Low-Level ACPI Support * * Copyright (C) 2001, 2002 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com> * Copyright (C) 2001 Jun Nakajima <jun.nakajima@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 <xen/config.h> #include <xen/kernel.h> #include <xen/init.h> #include <xen/types.h> #include <xen/slab.h> #include <xen/pci.h> #include <xen/irq.h> #include <xen/acpi.h> #include <asm/mpspec.h> #include <asm/io.h> #include <asm/apic.h> #include <asm/apicdef.h> #include <asm/page.h> #include <asm/io_apic.h> #include <asm/acpi.h> #include <asm/smpboot.h> #define PREFIX "ACPI: " int acpi_lapic; int acpi_ioapic; int acpi_strict; acpi_interrupt_flags acpi_sci_flags __initdata; int acpi_sci_override_gsi __initdata; /* -------------------------------------------------------------------------- Boot-time Configuration -------------------------------------------------------------------------- */ int acpi_noirq __initdata = 0; /* skip ACPI IRQ initialization */ int acpi_ht __initdata = 1; /* enable HT */ enum acpi_irq_model_id acpi_irq_model; /* * Temporarily use the virtual area starting from FIX_IO_APIC_BASE_END, * to map the target physical address. The problem is that set_fixmap() * provides a single page, and it is possible that the page is not * sufficient. * By using this area, we can map up to MAX_IO_APICS pages temporarily, * i.e. until the next __va_range() call. * * Important Safety Note: The fixed I/O APIC page numbers are *subtracted* * from the fixed base. That's why we start at FIX_IO_APIC_BASE_END and * count idx down while incrementing the phys address. */ char *__acpi_map_table(unsigned long phys, unsigned long size) { unsigned long base, offset, mapped_size; int idx; if (phys + size < 8*1024*1024) return __va(phys); offset = phys & (PAGE_SIZE - 1); mapped_size = PAGE_SIZE - offset; set_fixmap(FIX_ACPI_END, phys); base = fix_to_virt(FIX_ACPI_END); /* * Most cases can be covered by the below. */ idx = FIX_ACPI_END; while (mapped_size < size) { if (--idx < FIX_ACPI_BEGIN) return 0; /* cannot handle this */ phys += PAGE_SIZE; set_fixmap(idx, phys); mapped_size += PAGE_SIZE; } return ((unsigned char *) base + offset); } #ifdef CONFIG_X86_LOCAL_APIC static u64 acpi_lapic_addr __initdata = APIC_DEFAULT_PHYS_BASE; static int __init acpi_parse_madt ( unsigned long phys_addr, unsigned long size) { struct acpi_table_madt *madt = NULL; if (!phys_addr || !size) return -EINVAL; madt = (struct acpi_table_madt *) __acpi_map_table(phys_addr, size); if (!madt) { printk(KERN_WARNING PREFIX "Unable to map MADT\n"); return -ENODEV; } if (madt->lapic_address) acpi_lapic_addr = (u64) madt->lapic_address; printk(KERN_INFO PREFIX "Local APIC address 0x%08x\n", madt->lapic_address); detect_clustered_apic(madt->header.oem_id, madt->header.oem_table_id); return 0; } static int __init acpi_parse_lapic ( acpi_table_entry_header *header) { struct acpi_table_lapic *processor = NULL; processor = (struct acpi_table_lapic*) header; if (!processor) return -EINVAL; acpi_table_print_madt_entry(header); mp_register_lapic ( processor->id, /* APIC ID */ processor->flags.enabled); /* Enabled? */ return 0; } static int __init acpi_parse_lapic_addr_ovr ( acpi_table_entry_header *header) { struct acpi_table_lapic_addr_ovr *lapic_addr_ovr = NULL; lapic_addr_ovr = (struct acpi_table_lapic_addr_ovr*) header; if (!lapic_addr_ovr) return -EINVAL; acpi_lapic_addr = lapic_addr_ovr->address; return 0; } static int __init acpi_parse_lapic_nmi ( acpi_table_entry_header *header) { struct acpi_table_lapic_nmi *lapic_nmi = NULL; lapic_nmi = (struct acpi_table_lapic_nmi*) header; if (!lapic_nmi) return -EINVAL; acpi_table_print_madt_entry(header); if (lapic_nmi->lint != 1) printk(KERN_WARNING PREFIX "NMI not connected to LINT 1!\n"); return 0; } #endif /*CONFIG_X86_LOCAL_APIC*/ #if defined(CONFIG_X86_IO_APIC) && defined(CONFIG_ACPI_INTERPRETER) static int __init acpi_parse_ioapic ( acpi_table_entry_header *header) { struct acpi_table_ioapic *ioapic = NULL; ioapic = (struct acpi_table_ioapic*) header; if (!ioapic) return -EINVAL; acpi_table_print_madt_entry(header); mp_register_ioapic ( ioapic->id, ioapic->address, ioapic->global_irq_base); return 0; } /* * Parse Interrupt Source Override for the ACPI SCI */ static void acpi_sci_ioapic_setup(u32 gsi, u16 polarity, u16 trigger) { if (trigger == 0) /* compatible SCI trigger is level */ trigger = 3; if (polarity == 0) /* compatible SCI polarity is low */ polarity = 3; /* Command-line over-ride via acpi_sci= */ if (acpi_sci_flags.trigger) trigger = acpi_sci_flags.trigger; if (acpi_sci_flags.polarity) polarity = acpi_sci_flags.polarity; /* * mp_config_acpi_legacy_irqs() already setup IRQs < 16 * If GSI is < 16, this will update its flags, * else it will create a new mp_irqs[] entry. */ mp_override_legacy_irq(gsi, polarity, trigger, gsi); /* * stash over-ride to indicate we've been here * and for later update of acpi_fadt */ acpi_sci_override_gsi = gsi; return; } static int __init acpi_parse_fadt(unsigned long phys, unsigned long size) { struct fadt_descriptor_rev2 *fadt =0; fadt = (struct fadt_descriptor_rev2*) __acpi_map_table(phys,size); if (!fadt) { printk(KERN_WARNING PREFIX "Unable to map FADT\n"); return 0; } #ifdef CONFIG_ACPI_INTERPRETER /* initialize sci_int early for INT_SRC_OVR MADT parsing */ acpi_fadt.sci_int = fadt->sci_int; #endif return 0; } static int __init acpi_parse_int_src_ovr ( acpi_table_entry_header *header) { struct acpi_table_int_src_ovr *intsrc = NULL; intsrc = (struct acpi_table_int_src_ovr*) header; if (!intsrc) return -EINVAL; acpi_table_print_madt_entry(header); if (intsrc->bus_irq == acpi_fadt.sci_int) { acpi_sci_ioapic_setup(intsrc->global_irq, intsrc->flags.polarity, intsrc->flags.trigger); return 0; } mp_override_legacy_irq ( intsrc->bus_irq, intsrc->flags.polarity, intsrc->flags.trigger, intsrc->global_irq); return 0; } static int __init acpi_parse_nmi_src ( acpi_table_entry_header *header) { struct acpi_table_nmi_src *nmi_src = NULL; nmi_src = (struct acpi_table_nmi_src*) header; if (!nmi_src) return -EINVAL; acpi_table_print_madt_entry(header); /* TBD: Support nimsrc entries? */ return 0; } #endif /*CONFIG_X86_IO_APIC && CONFIG_ACPI_INTERPRETER*/ static unsigned long __init acpi_scan_rsdp ( unsigned long start, unsigned long length) { unsigned long offset = 0; unsigned long sig_len = sizeof("RSD PTR ") - 1; /* * Scan all 16-byte boundaries of the physical memory region for the * RSDP signature. */ for (offset = 0; offset < length; offset += 16) { if (strncmp((char *) (start + offset), "RSD PTR ", sig_len)) continue; return (start + offset); } return 0; } unsigned long __init acpi_find_rsdp (void) { unsigned long rsdp_phys = 0; /* * Scan memory looking for the RSDP signature. First search EBDA (low * memory) paragraphs and then search upper memory (E0000-FFFFF). */ rsdp_phys = acpi_scan_rsdp (0, 0x400); if (!rsdp_phys) rsdp_phys = acpi_scan_rsdp (0xE0000, 0x20000); return rsdp_phys; } /* * acpi_boot_init() * called from setup_arch(), always. * 1. maps ACPI tables for later use * 2. enumerates lapics * 3. enumerates io-apics * * side effects: * acpi_lapic = 1 if LAPIC found * acpi_ioapic = 1 if IOAPIC found * if (acpi_lapic && acpi_ioapic) smp_found_config = 1; * if acpi_blacklisted() disable_acpi() * acpi_irq_model=... * ... * * return value: (currently ignored) * 0: success * !0: failure */ int __init acpi_boot_init (void) { int result = 0; if (acpi_disabled && !acpi_ht) return(1); /* * The default interrupt routing model is PIC (8259). This gets * overriden if IOAPICs are enumerated (below). */ acpi_irq_model = ACPI_IRQ_MODEL_PIC; /* * Initialize the ACPI boot-time table parser. */ result = acpi_table_init(); if (result) { disable_acpi(); return result; } result = acpi_blacklisted(); if (result) { printk(KERN_NOTICE PREFIX "BIOS listed in blacklist, disabling ACPI support\n"); disable_acpi(); return result; } #ifdef CONFIG_X86_LOCAL_APIC /* * MADT * ---- * Parse the Multiple APIC Description Table (MADT), if exists. * Note that this table provides platform SMP configuration * information -- the successor to MPS tables. */ result = acpi_table_parse(ACPI_APIC, acpi_parse_madt); if (!result) { return 0; } else if (result < 0) { printk(KERN_ERR PREFIX "Error parsing MADT\n"); return result; } else if (result > 1) printk(KERN_WARNING PREFIX "Multiple MADT tables exist\n"); /* * Local APIC * ---------- * Note that the LAPIC address is obtained from the MADT (32-bit value) * and (optionally) overriden by a LAPIC_ADDR_OVR entry (64-bit value). */ result = acpi_table_parse_madt(ACPI_MADT_LAPIC_ADDR_OVR, acpi_parse_lapic_addr_ovr); if (result < 0) { printk(KERN_ERR PREFIX "Error parsing LAPIC address override entry\n"); return result; } mp_register_lapic_address(acpi_lapic_addr); result = acpi_table_parse_madt(ACPI_MADT_LAPIC, acpi_parse_lapic); if (!result) { printk(KERN_ERR PREFIX "No LAPIC entries present\n"); /* TBD: Cleanup to allow fallback to MPS */ return -ENODEV; } else if (result < 0) { printk(KERN_ERR PREFIX "Error parsing LAPIC entry\n"); /* TBD: Cleanup to allow fallback to MPS */ return result; } result = acpi_table_parse_madt(ACPI_MADT_LAPIC_NMI, acpi_parse_lapic_nmi); if (result < 0) { printk(KERN_ERR PREFIX "Error parsing LAPIC NMI entry\n"); /* TBD: Cleanup to allow fallback to MPS */ return result; } acpi_lapic = 1; #endif /*CONFIG_X86_LOCAL_APIC*/ #if defined(CONFIG_X86_IO_APIC) && defined(CONFIG_ACPI_INTERPRETER) /* * I/O APIC * -------- */ /* * ACPI interpreter is required to complete interrupt setup, * so if it is off, don't enumerate the io-apics with ACPI. * If MPS is present, it will handle them, * otherwise the system will stay in PIC mode */ if (acpi_disabled || acpi_noirq) { return 1; } /* * if "noapic" boot option, don't look for IO-APICs */ if (ioapic_setup_disabled()) { printk(KERN_INFO PREFIX "Skipping IOAPIC probe " "due to 'noapic' option.\n"); return 1; } result = acpi_table_parse_madt(ACPI_MADT_IOAPIC, acpi_parse_ioapic); if (!result) { printk(KERN_ERR PREFIX "No IOAPIC entries present\n"); return -ENODEV; } else if (result < 0) { printk(KERN_ERR PREFIX "Error parsing IOAPIC entry\n"); return result; } /* Build a default routing table for legacy (ISA) interrupts. */ mp_config_acpi_legacy_irqs(); /* Record sci_int for use when looking for MADT sci_int override */ acpi_table_parse(ACPI_FADT, acpi_parse_fadt); result = acpi_table_parse_madt(ACPI_MADT_INT_SRC_OVR, acpi_parse_int_src_ovr); if (result < 0) { printk(KERN_ERR PREFIX "Error parsing interrupt source overrides entry\n"); /* TBD: Cleanup to allow fallback to MPS */ return result; } /* * If BIOS did not supply an INT_SRC_OVR for the SCI * pretend we got one so we can set the SCI flags. */ if (!acpi_sci_override_gsi) acpi_sci_ioapic_setup(acpi_fadt.sci_int, 0, 0); result = acpi_table_parse_madt(ACPI_MADT_NMI_SRC, acpi_parse_nmi_src); if (result < 0) { printk(KERN_ERR PREFIX "Error parsing NMI SRC entry\n"); /* TBD: Cleanup to allow fallback to MPS */ return result; } acpi_irq_model = ACPI_IRQ_MODEL_IOAPIC; acpi_irq_balance_set(NULL); acpi_ioapic = 1; if (acpi_lapic && acpi_ioapic) smp_found_config = 1; #endif /*CONFIG_X86_IO_APIC && CONFIG_ACPI_INTERPRETER*/ return 0; } #ifdef CONFIG_ACPI_BUS /* * acpi_pic_sci_set_trigger() * * use ELCR to set PIC-mode trigger type for SCI * * If a PIC-mode SCI is not recognized or gives spurious IRQ7's * it may require Edge Trigger -- use "acpi_sci=edge" * * Port 0x4d0-4d1 are ECLR1 and ECLR2, the Edge/Level Control Registers * for the 8259 PIC. bit[n] = 1 means irq[n] is Level, otherwise Edge. * ECLR1 is IRQ's 0-7 (IRQ 0, 1, 2 must be 0) * ECLR2 is IRQ's 8-15 (IRQ 8, 13 must be 0) */ void __init acpi_pic_sci_set_trigger(unsigned int irq, u16 trigger) { unsigned char mask = 1 << (irq & 7); unsigned int port = 0x4d0 + (irq >> 3); unsigned char val = inb(port); printk(PREFIX "IRQ%d SCI:", irq); if (!(val & mask)) { printk(" Edge"); if (trigger == 3) { printk(" set to Level"); outb(val | mask, port); } } else { printk(" Level"); if (trigger == 1) { printk(" set to Edge"); outb(val & ~mask, port); } } printk(" Trigger.\n"); } #endif /* CONFIG_ACPI_BUS */ /* -------------------------------------------------------------------------- Low-Level Sleep Support -------------------------------------------------------------------------- */ #ifdef CONFIG_ACPI_SLEEP #define DEBUG #ifdef DEBUG #include <xen/serial.h> #endif /* address in low memory of the wakeup routine. */ unsigned long acpi_wakeup_address = 0; /* new page directory that we will be using */ static pmd_t *pmd; /* saved page directory */ static pmd_t saved_pmd; /* page which we'll use for the new page directory */ static pte_t *ptep; extern unsigned long FASTCALL(acpi_copy_wakeup_routine(unsigned long)); /* * acpi_create_identity_pmd * * Create a new, identity mapped pmd. * * Do this by creating new page directory, and marking all the pages as R/W * Then set it as the new Page Middle Directory. * And, of course, flush the TLB so it takes effect. * * We save the address of the old one, for later restoration. */ static void acpi_create_identity_pmd (void) { pgd_t *pgd; int i; ptep = (pte_t*)__get_free_page(GFP_KERNEL); /* fill page with low mapping */ for (i = 0; i < PTRS_PER_PTE; i++) set_pte(ptep + i, mk_pte_phys(i << PAGE_SHIFT, PAGE_SHARED)); pgd = pgd_offset(current->active_mm, 0); pmd = pmd_alloc(current->mm,pgd, 0); /* save the old pmd */ saved_pmd = *pmd; /* set the new one */ set_pmd(pmd, __pmd(_PAGE_TABLE + __pa(ptep))); /* flush the TLB */ local_flush_tlb(); } /* * acpi_restore_pmd * * Restore the old pmd saved by acpi_create_identity_pmd and * free the page that said function alloc'd */ static void acpi_restore_pmd (void) { set_pmd(pmd, saved_pmd); local_flush_tlb(); free_page((unsigned long)ptep); } /** * acpi_save_state_mem - save kernel state * * Create an identity mapped page table and copy the wakeup routine to * low memory. */ int acpi_save_state_mem (void) { acpi_create_identity_pmd(); acpi_copy_wakeup_routine(acpi_wakeup_address); return 0; } /** * acpi_save_state_disk - save kernel state to disk * */ int acpi_save_state_disk (void) { return 1; } /* * acpi_restore_state */ void acpi_restore_state_mem (void) { acpi_restore_pmd(); } /** * acpi_reserve_bootmem - do _very_ early ACPI initialisation * * We allocate a page in low memory for the wakeup * routine for when we come back from a sleep state. The * runtime allocator allows specification of <16M pages, but not * <1M pages. */ void __init acpi_reserve_bootmem(void) { acpi_wakeup_address = (unsigned long)alloc_bootmem_low(PAGE_SIZE); if (!acpi_wakeup_address) printk(KERN_ERR "ACPI: Cannot allocate lowmem, S3 disabled.\n"); } void do_suspend_lowlevel_s4bios(int resume) { if (!resume) { save_processor_context(); acpi_save_register_state((unsigned long)&&acpi_sleep_done); acpi_enter_sleep_state_s4bios(); return; } acpi_sleep_done: restore_processor_context(); } #endif /*CONFIG_ACPI_SLEEP*/


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