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2021-04-05ioapic: Wrap EOIs with maskingsmp-maskDamien Zammit
2021-04-05ioapic: Fix arg passing of redirection entryDamien Zammit
Message-Id: <20210405115921.184572-3-damien@zamaudio.com>
2021-04-05ioapic: Refactor EOIDamien Zammit
Message-Id: <20210405115921.184572-2-damien@zamaudio.com>
2021-04-05thread_info: Fix crash when requesting for thread that never ranSamuel Thibault
* kern/thread.c (thread_info): Set last_processor to 0 when the thread never ran.
2021-04-05thread_info: Fix returning last_processorSamuel Thibault
thread->last_processor is a processor_t, not a slot number. * kern/thread.c (thread_info): Set sched_info->last_processor to thread->last_processor->slot_num rather than thread->last_processor.
2021-04-05ioapic: Use irq specific EOI properly when detectedDamien Zammit
Message-Id: <20210405052916.174771-5-damien@zamaudio.com>
2021-04-05Don't call EOI on spurious interruptsDamien Zammit
Message-Id: <20210405052916.174771-4-damien@zamaudio.com>
2021-04-05ioapic: target first processor for interruptsDamien Zammit
Message-Id: <20210405052916.174771-3-damien@zamaudio.com>
2021-04-05ioapic: Enable processor focus to BSPDamien Zammit
Message-Id: <20210405052916.174771-2-damien@zamaudio.com>
2021-04-04SMP: Fix warningsSamuel Thibault
2021-04-04SMP: fix getting the interrupt stack address and sizeSamuel Thibault
* i386/i386at/boothdr.S (_eintstack): Add missing common. * i386/xen/xen_boothdr.S (_eintstack): Add missing common. * x86_64/xen/xen_boothdr.S (_eintstack): Add missing common. * i386/i386/mp_desc.c (intstack, eintstack): Add missing underscore.
2021-04-04Add ioapic support disabled by defaultDamien Zammit
Use --enable-ncpus=x --enable-apic where x > 1 for SMP+APIC support. Use neither for no SMP and old PIC support. Message-Id: <20210404050812.145483-1-damien@zamaudio.com>
2021-04-03pit: Add more macrosSamuel Thibault
* i386/i386/pit.h (PITAUX_VAL, PIT_C2): New macros. (PIT_RATEMODE): Fix macro value.
2021-03-31linux: Add option to disable Linux groupsSamuel Thibault
* linux/configfrag.ac (--disable-linux-groups): New option. (AC_OPTION_Linux_group): Default to $enable_linux_groups.
2021-03-31intr: Always share irqsSamuel Thibault
We currently already always assume that irqs user handlers can be shared * device/intr.c (install_user_intr_handler): Add SA_SHIRQ to flags.
2021-03-31intr: Add user interrupt handling code for non-Linux caseDamien Zammit
* device/intr.c: Include <kern/assert.h> (struct intr_list): New structure. (user_intr_handlers): New array. (user_irq_handler): New function. (install_user_intr_handler): New function. Message-Id: <20210330025830.63528-2-damien@zamaudio.com>
2021-03-31Keep BIOS mapped even without LinuxSamuel Thibault
Not only Linux drivers need BIOS mapped. * i386/i386at/model_dep.c (i386at_init) [!LINUX_DEV]: Map the low memory. * i386/intel/pmap.c (pmap_create) [!LINUX_DEV]: Likewise.
2021-03-29apic: Reorder definesDamien Zammit
2021-03-28linux irq: Avoid hardcoding the number of interrupts.Damien Zammit
* linux/dev/arch/i386/kernel/irq.c: Include <i386/irq.h> instead of <i386/pic.h>. (irq_action): Use NINTR instead of 16, do not bother expliciting the initialization. (install_user_intr_handler, request_irq, free_irq, probe_irq_on, probe_irq_off, reserve_mach_irqs): Use NINTR instead of 16.
2021-03-28pic: Move to interrupts 0x20-0x2fDamien Zammit
* i386/i386/pic.h (PICM_VECTBASE): Set to 0x20. * i386/i386at/idt.h (IDTSZ): Set to 0x20 + 0x10. (PIC_INT_BASE): Set to 0x20.
2021-03-28Existing SMP apic code improvementsDamien Zammit
* i386/i386/apic.c (acpi_get_irq_override): New function. (apic_get_ioapic): Make it return IoApicData* rather than IoApicData. (apic_print_info): Manage IoApicData* rather than IoApicData. * i386/i386/apic.h (struct ApicReg): Use uint32_t instead of unsigned. (struct ioapic_route_entry): New structure. (union ioapic_route_entry_union): New union. (ApicLocalUnit): Rename base to gsi_base. Add ioapic field. (APIC_IRQ_OVERRIDE_POLARITY_MASK, APIC_IRQ_OVERRIDE_TRIGGER_MASK): New macros. (acpi_get_irq_override, ): New prototype. (apic_get_ioapic): Update prototype. (lapic): New declaration. (IMCR_SELECT, IMCR_DATA, MODE_IMCR, IMCR_USE_PIC, IMCR_USE_APIC, LAPIC_ENABLE, LAPIC_NMI, LAPIC_DISABLE, LAPIC_TIMER_PERIODIC, LAPIC_TIMER_DIVIDE_2, LAPIC_TIMER_DIVIDE_4, LAPIC_TIMER_DIVIDE_8, LAPIC_TIMER_DIVIDE_16, LAPIC_TIMER_BASEDIV, NINTR, IOAPIC_FIXED, IOAPIC_PHYSICAL, IOAPIC_LOGICAL, IOAPIC_NMI, IOAPIC_EXTINT, IOAPIC_ACTIVE_HIGH, IOAPIC_ACTIVE_LOW, IOAPIC_EDGE_TRIGGERED, IOAPIC_LEVEL_TRIGGERED, IOAPIC_MASK_ENABLED, IOAPIC_MASK_DISABLED): New macros. * i386/i386at/acpi_parse_apic.h (struct acpi_apic_ioapic): Rename base field to gsi_base. * i386/i386at/acpi_parse_apic.c (acpi_apic_add_ioapic): Update to gsi_base new name. Set ioapic field. (acpi_apic_setup): Rename lapic to lapic_unit. Message-Id: <20210328060320.36194-5-damien@zamaudio.com>
2021-03-28Don't allow writing to acpi table in memoryDamien Zammit
* i386/i386at/acpi_parse_apic.c (acpi_get_apic): Map rsdt entries read-only. Message-Id: <20210328060320.36194-4-damien@zamaudio.com>
2021-03-28fixup acpi base table searchDamien Zammit
* i386/i386at/acpi_parse_apic.c (acpi_check_rsdp_align): Make it take a void* instead of uint32_t. (acpi_get_rsdp): Apply phystokv on the EBDA base and 0xE0000. (acpi_apic_setup): Drop spurious negation. Message-Id: <20210328060320.36194-3-damien@zamaudio.com>
2021-03-28configure: Add block groupDamien Zammit
This is the last group needed to easily disable the Linux glue. * linux/configfrag.ac (block): New group. (floppy): Set group to block. (ide): Set group to block. Message-Id: <20210328060320.36194-2-damien@zamaudio.com>
2021-03-27fix EISA check in init_IRQDamien Zammit
Message-Id: <20210326094850.2606-5-damien@zamaudio.com>
2021-03-27clock: Let timer proceed even before we have set threadsDamien Zammit
Message-Id: <20210326094850.2606-4-damien@zamaudio.com>
2021-02-21ahci: Fix variable nameAndrea G. Monaco
* linux/dev/drivers/block/ahci.c (ahci_probe_dev): Rename spd to det.
2021-02-11i386 fpu: fix bogus checkAndrea G. Monaco
Avoid panicing on all CPUs that do not support xsaves. * i386/i386/fpu.c (init_fpu): Panic on CPUs that do not support xsaves only if the cpu-reported xsave size is smaller than expected.
2021-02-09Default MIG to mig when not found.Samuel Thibault
bash: no: command not found seems to be confusing for users. Revert to setting back to mig, but after printing the warning. * configure.ac (MIG): Default to mig when not found.
2021-02-09Warn about missing migSamuel Thibault
* configure.ac (MIG): Do not default to mig, and warn when this is missing. Advertise the MIG variable.
2021-02-07Advise to simply use a cross-toolchainSamuel Thibault
* README: Advise to use i686-linux-gnu-* tools.
2021-02-03com: Fix bogus NCOM testAndrea G. Monaco
* i386/i386at/com.c (comprobe_general): Reject unit being equal to NCOM.
2021-01-20doc: Add a missing field for 'struct thread_sched_info'.Guy-Fleury Iteriteka
* doc/mach.texi(struct thread_sched_info): Add 'int last_processor' item. Message-Id: <20210120185809.2429-1-gfleury@disroot.org>
2021-01-09add a missing include header guard.guy fleury iteriteka
* i386/i386at/comreg.h: Add header guard angaist multiple inclusion. Message-Id: <20210109180149.11861-1-gfleury@disroot.org>
2021-01-04vm_map: Avoid linking gaps for vm_copy_tSamuel Thibault
This does not make sense, and produces incorrect results (since vme_end is 0, etc.) * vm/vm_map.h (_vm_map_clip_start, _vm_map_clip_end): Add link_gap parameter. * vm/vm_map.c (_vm_map_entry_link): Add link_gap parameter, do not call vm_map_gap_insert if it is 0. (vm_map_entry_link): Set link_gap to 1 in _vm_map_entry_link call. (_vm_map_clip_start): Add link_gap parameter, pass it to _vm_map_entry_link call.. (vm_map_clip_start): Set link_gap_to 1 in _vm_map_clip_start call. (vm_map_copy_entry_link): Set link_gap to 0 in _vm_map_entry_link call. (vm_map_copy_clip_start): Set link_gap_to 0 in _vm_map_clip_start call. (_vm_map_entry_unlink): Add unlink_gap parameter, do not call vm_map_gap_remove if it is 0. (vm_map_entry_unlink): Set unlink_gap to 1 in _vm_map_entry_unlink call. (_vm_map_clip_end): Add link_gap parameter, pass it to _vm_map_entry_link call.. (vm_map_clip_end): Set link_gap_to 1 in _vm_map_clip_end call. (vm_map_copy_entry_unlink): Set unlink_gap to 0 in _vm_map_entry_unlink call. (vm_map_copy_clip_end): Set link_gap_to 0 in _vm_map_clip_end call. * vm/vm_kern.c (projected_buffer_deallocate): set link_gap to 1 in _vm_map_clip_start and _vm_map_clip_end calls.
2021-01-04vm_map: print warning when max_size gets smaller than sizeSamuel Thibault
* vm/vm_map.c (vm_map_find_entry_anywhere): Print warning when max_size gets smaller than size.
2020-12-23Fix _Static_assert callSamuel Thibault
Before C2X, _Static_assert requires a second parameter Reported by Andrea G. Monaco <andrea.monaco@autistici.org> * i386/i386/fpu.c: Add second parameter to _Static_assert calls.
2020-12-20vm_map: Fix taking into account high bits in maskSamuel Thibault
glibc's sysdeps/mach/hurd/dl-sysdep.c has been wanting to use this for decades. * include/string.h (ffs): New declaration. * vm/vm_map.c: Include <string.h>. (vm_map_find_entry_anywhere): Separate out high bits from mask, to compute the maximum offset instead of map->max_offset. * doc/mach.texi (vm_map): Update documentation accordingly.
2020-12-07i386at: Really disable com and lpr above NCOM and NLPRSamuel Thibault
commmodem and lprinfo arrays would otherwise overflow. * i386/i386at/com.c (comattach): Return early when unit is beyond NCOM. * i386/i386at/lpr.c (lprattach): Return early when unit is beyond NLPR.
2020-12-02pmap: Note that we should support PCIDSamuel Thibault
2020-12-01x86: Move fp_reg.h static assertions to .c fileSamuel Thibault
Since fp_reg.h is installed on the system, and compilers may not even support _Static_assert. * i386/include/mach/i386/fp_reg.h: Move _Static_assert to... * i386/i386/fpu.c: ... c file.
2020-12-01gsync: Use vm_address_t instead of vm_offset_tSamuel Thibault
vm_offset_t are offsets inside memory objects, not actual addresses. * include/mach/gnumach.defs (gsync_wait, gsync_wake, gsync_requeue): Use vm_address_t instead of vm_offset_t.
2020-12-01x86: Keep fp_regs.h standaloneSamuel Thibault
We cannot include stdint.h in fp_regs.h since this is included by mach_types.h for bootstrapping, before we have stdint.h from glibc. * i386/include/mach/i386/fp_reg.h: Do not include <stdint.h> (XSAVE_XCOMP_BV_COMPACT, struct i386_xfp_xstate_header): Use unsigned long long instead of uint64_t.
2020-11-29x86: Get default state from the CPU itselfSamuel Thibault
It seems that at least qemu does not like our initial state. We can as well just take it from fninit. * i386/i386/fpu.c (MXCSR_DEFAULT, CWD_DEFAULT): Remove macros. (fpu_module_init): Get default state from CPU. (fpinit): Do not call fninit.
2020-11-29x86: Make sure we allocate as much as our structure should holdSamuel Thibault
* i386/i386/fpu.c (init_fpu): Panic if the CPU gives us a size that is smaller than it should.
2020-11-29x86: clear exceptions etc. on fpinitSamuel Thibault
fpu_rstor is not enough, exceptions and such remain behind, so restore calling fninit. * i386/i386/fpu.c (fpinit): call fninit() before fpu_rstor().
2020-11-29x86: Fix initial control wordSamuel Thibault
The value in fp_state_alloc was actually an oldie, the value in fpinit was the expected one nowadays. * i386/i386/fpu.c (CWD_DEFAULT): Set to 0x37f.
2020-11-29x86: Fix initialization of new threadsSamuel Thibault
fninit does not clear MMX/SSE/AVX registers, so we have to use rstor to clear them when starting a new thread. Along the way, we can as well just have a default state to be loaded in each new thread. * i386/include/mach/i386/fp_reg.h (XSAVE_XCOMP_BV_COMPACT): New macro. * i386/i386/fpu.h (fp_default_state): New variable declaration. * i386/i386/fpu.c (fp_default_state): New variable. (MXCSR_DEFAULT, CWD_DEFAULT): New macros. (fpu_module_init): Allocate and initialize fp_default_state. (fpinit): rstor from fp_default_state instead of setting FPU state by hand. (fp_load): Copy initial state from fp_default_state instead of setting it to 0. This is more future-proof since this is the exact state that we are loading in fpinit. (fp_state_alloc): fp_state_alloc: Copy initial state from fp_default_state.
2020-11-29x86: Factorize fpu save/restoreSamuel Thibault
* i386/i386/fpu.h (fpu_save, fpu_rstor): New macros. (fpu_save_context): Use fpu_save macro. * i386/i386/fpu.c (fp_save): Use fpu_save macro. (fp_load): Use fpu_rstor macro.
2020-11-28x86: Drop XSAVE support limitationSamuel Thibault
Now that XSAVEOPT is supported, we are fine with supporting large FPU state. * i386/i386/fpu.c (init_fpu): Do not limit fp_xsave_support to CPU_XCR0_SUPPORTED. * i386/i386/fpu.h (CPU_XCR0_SUPPORTED): Remove macro.
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