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* Add missing caddr_t typeSamuel Thibault2024-10-171-2/+0
| | | | Now that gnumach does not define it any more.
* Disable specific warnings that are now errors in GCC 14Flavio Cruz2024-06-241-1/+7
| | | | Message-ID: <376mwj4qtzxqgg2p4teqefxep7qz2kxll25synb3sulgof24j5@wxhqtaf7ei32>
* linux: Do not enable in SMP, it is not MP-safeSamuel Thibault2024-04-051-0/+5
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* remove machine/machspl.h as it duplicates machine/spl.hLD2024-03-092-2/+2
| | | | Message-ID: <20240309140244.347835-2-luca@orpolo.org>
* linux: Add missing includeSamuel Thibault2024-03-041-0/+2
| | | | Otherwise the types in linux/dev/include/linux/skbuff.h are unknown.
* linux: Add noide and noahci kernel optionsSamuel Thibault2024-01-232-2/+8
| | | | | They were meant to be temporary, but that got longer, and people seem to expect them to be there now.
* linux: DMA32 is now correctly handledSamuel Thibault2023-08-301-1/+0
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* Use host_get_time64 in glue codeFlavio Cruz2023-03-131-1/+4
| | | | Message-Id: <ZA64CbpYEz+BgiEw@jupiter.tail36e24.ts.net>
* linux: Fix non-SMP buildSamuel Thibault2023-02-142-1/+2
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* Make curr_ipl[] per cpuDamien Zammit2023-02-142-4/+5
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* linux: Keep existing timer interrupt handler for APICDamien Zammit2023-02-031-1/+3
| | | | Message-Id: <20230203100133.835589-2-damien@zamaudio.com>
* linux: Skip probing IDE when 255 phys heads detectedDamien Zammit2023-02-011-1/+1
| | | | | This allows qemu -M q35 to boot without 30 second timeout failing on hd0, when disk is actually attached via ahci.
* linux: Skip updating jiffies on AP timerDamien Zammit2023-01-311-0/+3
| | | | Message-Id: <20230131093428.756906-7-damien@zamaudio.com>
* Enable -Wmissing-prototypes.Flavio Cruz2023-01-291-0/+4
| | | | | | | | | | * Makefile.am: enable -Wmissing-prototypes * ddb/db_inout.h: Prototype kdb_kintr for entering into DDB. * ddb/db_mp.c Include ddb/db_input.h to get kdb_kintr. * i386/i386at/kd.h: Include ddb/input.h to get kdb_kintr. * linux/Makefrag.am: Disable some of the new warnings for linux drivers, otherwise we will get more and more noise. Message-Id: <Y9YNfNaYSsZJFST5@mercury.tail36e24.ts.net>
* Fix several warnings for -Wmissing-prototypesFlavio Cruz2023-01-241-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * device/ds_routines.c: use static qualifier. * device/subrs.c: delete unused functions. * i386/i386/ast_check.c: include prototypes in kern/ast.h * i386/i386/db_disasm.c: Include prototypes in ddb/db_examine.h * i386/i386/db_interface.h: Define prototype for kdb_kentry. Expose debug methods feep and kd_debug_put. * i386/i386/db_trace.c: delete left over cthreads support, functions are not used. * i386/i386/model_dep.h: Define prototype for c_boot_entry. * i386/i386at/acpi_parse_apic.c: Static qualifiers. * i386/i386at/autoconf.c: Include header file for prototypes and remove dead code. * i386/i386at/autoconf.h: Fix prototype. * i386/i386at/com.c: Add static qualifiers, delete dead code. * i386/i386at/com.c: ditto. * i386/i386at/com.h: Define prototypes for debug functions. * i386/i386at/int_init.c: Include header. * i386/i386at/kd.c: Include header for debug interface. Remove dead kd_cmdreg_read and make xga_getpos static. * i386/i386at/kd_mouse.c: Static qualifiers. * i386/i386at/lpr.c: Dead lprpr. * i386/i386at/model_dep.c: Remove exit function. * kern/mach_clock.c: Include mig prototypes. * kern/mach_clock.h: Remove duplicates of mig prototypes. * kern/machine.c: Use static. * kern/startup.c: slave_main is unused. * kern/thread.h: Define thread_stats that is useful for debugging. * kern/timer.c: Keep db_thread_times since it can be used for debugging. * kern/timer.h: ditto. * linux/dev/glue/misc.c: Use mig header for host_get_time. Message-Id: <Y8oyiecaflCaYhaW@mercury.tail36e24.ts.net>
* Drop spurious changesSamuel Thibault2022-12-222-8/+2
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* Warn only once about not being able to recycle pagesSamuel Thibault2022-12-222-2/+8
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* linux drivers: Don't depend on curr_pic_mask for APICDamien Zammit2022-10-261-2/+2
| | | | Message-Id: <20221025105502.222708-7-damien@zamaudio.com>
* bios32: Use phystokv() on low bios addressesDamien Zammit2022-10-251-5/+5
| | | | Message-Id: <20221025105502.222708-4-damien@zamaudio.com>
* ahci: Do not even try AHCI identify when device is ATAPIAndrea Monaco2021-09-121-3/+4
| | | | | * linux/dev/drivers/block/ahci.c (ahci_probe_port): Avoid trying AHCI identify when PxCMD.ATAPI is set.
* ahci: Fix warning contentAndrea Monaco2021-09-121-1/+1
| | | | | * linux/dev/drivers/block/ahci.c (ahci_identify): Fix warning for the identify timeout.
* linux block: allow loading data up to 4GiB limitSamuel Thibault2021-08-281-1/+8
| | | | | | | | | | | | | | Linux drivers are only limited by the DMA32 constraint, not by the directmap constraint. But our segment order is currently set to DMA < DMA32 < DIRECTMAP < HIGHMEM (since that is what we will have in 64bit mode). In PAE mode this makes DMA32 limited to 800MiB. Ideally we'd have DMA < DIRECTMAP < DMA32 < HIGHMEM but that'd make the memory code more complex, and we are to remove the Linux drivers anyway. In the meanwhile, In non-PAE mode we can just use HIGHMEM which is already limited to 4GiB, that will do the work. * linux/dev/glue/block.c (VM_PAGE_LINUX): New macro. (device_read): Use VM_PAGE_LINUX instead of VM_PAGE_DMA32.
* linux: Use kvtophys instead of _kvtophysSamuel Thibault2021-08-281-1/+2
| | | | | | | | _kvtophys only works with direct-mappable memory, which is scarse, better use kvtophys that can work with any kind of memory. * linux/src/include/asm-i386/io.h: Include <intel/pmap.h> (virt_to_phys): Use kvtophys instead of _kvtophys.
* linux block: Fix checking block sector.Samuel Thibault2021-08-271-0/+2
| | | | * linux/dev/glue/block.c (check_rw_block): Return 0 on no error.
* vm_page_grab: allow allocating in high memorySamuel Thibault2021-08-271-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | vm_page_grab was systematically using the VM_PAGE_SEL_DIRECTMAP selector to play safe with existing code. This adds a flags parameter to let callers of vm_page_grab specify their constraints. Linux drivers need 32bit dmas, Xen drivers use kvtophys to clear some data. Callers of kmem_pagealloc_physmem and vm_page_grab_phys_addr also use kvtophys. Otherwise allocations can go to highmem. This fixes the allocation jam in the directmap segment. * vm/vm_page.h (VM_PAGE_DMA, VM_PAGE_DMA32, VM_PAGE_DIRECTMAP, VM_PAGE_HIGHMEM): New macros. (vm_page_grab): Add flags parameter. * vm/vm_resident.c (vm_page_grab): Choose allocation selector according to flags parameter. (vm_page_convert, vm_page_alloc): Pass VM_PAGE_HIGHMEM to vm_page_grab. (vm_page_grab_phys_addr): Pass VM_PAGE_DIRECTMAP to vm_page_grab. * vm/vm_fault.c (vm_fault_page): Pass VM_PAGE_HIGHMEM to vm_page_grab. * vm/vm_map.c (vm_map_copy_steal_pages): Pass VM_PAGE_HIGHMEM to vm_page_grab. * kern/slab.c (kmem_pagealloc_physmem): Pass VM_PAGE_DIRECTMAP to vm_page_grab. * i386/intel/pmap.c (pmap_page_table_page_alloc): Pass VM_PAGE_DIRECTMAP to vm_page_grab. * xen/block.c (device_read): Pass VM_PAGE_DIRECTMAP to vm_page_grab. * linux/dev/glue/block.c (alloc_buffer): Pass VM_PAGE_DMA32 to vm_page_grab.
* block: Look out for disk sector number overflowSamuel Thibault2021-08-173-9/+72
| | | | | | | | | | * linux/dev/drivers/block/ahci.c (ahci_do_port_request): Reject sectors beyond LBA48 or LBA28. * linux/dev/glue/block.c (check_rw_block): New function. (rdwr_partial, rdwr_full): Use check_rw_block to reject block number overflows. * linux/src/drivers/block/ide.c (do_rw_disk): Reject sectors beyond LBA28 or CHS.
* Add ioapic support disabled by defaultDamien Zammit2021-04-041-1/+3
| | | | | | | 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>
* linux: Add option to disable Linux groupsSamuel Thibault2021-03-311-1/+5
| | | | | * linux/configfrag.ac (--disable-linux-groups): New option. (AC_OPTION_Linux_group): Default to $enable_linux_groups.
* linux irq: Avoid hardcoding the number of interrupts.Damien Zammit2021-03-281-14/+8
| | | | | | | | | * 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.
* configure: Add block groupDamien Zammit2021-03-281-4/+16
| | | | | | | | | | 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>
* fix EISA check in init_IRQDamien Zammit2021-03-271-1/+1
| | | | Message-Id: <20210326094850.2606-5-damien@zamaudio.com>
* ahci: Fix variable nameAndrea G. Monaco2021-02-211-4/+4
| | | | * linux/dev/drivers/block/ahci.c (ahci_probe_dev): Rename spd to det.
* x86: Add XSAVE supportSamuel Thibault2020-11-281-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | * i386/i386/fpu.h (CPU_XCR0_X87, CPU_XCR0_SSE, CPU_XCR0_AVX, CPU_XCR0_MPX, CPU_XCR0_AVX512): New macros. (xsave): Pass fp_xsave_support to xsave. (fpu_save_context): When fp_kind is FP_387X, use xsave. (fp_xsave_support): New variable declaration. * i386/i386/proc_reg.h (cpuid): New macro. * linux/src/include/asm-i386/processor.h (cpuid): Disable macro. * i386/include/mach/i386/fp_reg.h: Include <stdint.h> (i386_xfp_xstate_header): New structure. (i386_xfp_save): Add xsave fields. * i386/i386/fpu.c (fp_xsave_support): New variable. (init_fpu): Look for XSAVE feature; if available, get the supported parts and set fp_kind to FP_387X. (fpu_module_init): Set ifps_cache alignment to alignof(struct i386_fpsave_state). (fpu_set_state): Make sure to clear all the ifps structure. Reuse the FP_387FX for the FP_387X case. (fpu_get_state, fpexterrflt, fpastintr, fp_state_alloc): Reuse the FP_387FX for the FP_387X case. (fp_save): When fp_kind is FP_387X, use xsave. (fp_load): When fp_kind is FP_387X, use xrstor. Reuse the FP_387FX for the FP_387X case.
* genhd: Fix building without IDE driversSamuel Thibault2020-11-151-2/+5
| | | | | * linux/dev/drivers/block/genhd.c [!CONFIG_BLK_DEV_IDE] (device_setup): Do not call ide_setup.
* smp: Add --enable-ncpus option and fix buildSamuel Thibault2020-09-191-0/+3
| | | | | | | | | | | | | | | | | | | | | | | * configfrag.ac (--enable-ncpus): Add option to set $mach_ncpus. * i386/i386/cpu_number.h (CPU_NUMBER, cpu_number): New macros, set to 0 for now. * i386/i386/db_interface.c (cpu_interrupt_to_db): New function. * i386/i386/db_interface.h (cpu_interrupt_to_db): New declaration. * i386/i386/mp_desc.c (int_stack_base): New array. (intel_startCPU): New function. * i386/i386at/model_dep.c: Include <i386/smp.h> (int_stack_top, int_stack_base): Turn into arrays (i386at_init): Update accesses accordingly. * i386/i386at/model_dep.h (int_stack_top, int_stack_base, ON_INT_STACK): Likewise. * i386/intel/pmap.c (cpus_active, cpus_idle, cpu_update_needed): Add variables. * i386/intel/pmap.h (cpus_active, cpus_idle, cpu_update_needed): Mark extern. * kern/cpu_number.h: Include <machine/cpu_number.h> * linux/dev/arch/i386/kernel/irq.c (local_bh_count, local_irq_count): Hardcode to the address of intr_count. We will not use the Linux code in SMP mode anyway.
* Add hardware interrupt notification mechanismSamuel Thibault2020-07-102-81/+73
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This allows privileged userland drivers to get notifications of hardware interrupts. Initial work by Zheng Da, reworked by Damien Zammit and myself. * Makefrag.am (libkernel_a_SOURCES): Add device/intr.c and device/intr.h. (include_device_HEADERS): Add include/device/notify.defs and include/device/notify.h. * device/dev_hdr.h (name_equal): Add declaration. * device/ds_routines.c: Include <device/intr.h> (ds_device_intr_register, ds_device_intr_ack): New functions. * device/intr.c, device/intr.h: New files. * doc/mach.texi (Device Interrupt): New section. * i386/Makefrag.am (libkernel_a_SOURCES): Add i386/i386/irq.c and i386/i386/irq.h. * i386/i386/irq.c, i386/i386/irq.h: New files. * i386/i386at/conf.c: Include <device/intr.h>. (irqname): New macro. (dev_name_list): Add irq device. * include/device/device.defs (device_intr_register, device_intr_ack): New RPCs. * include/device/notify.defs, include/device/notify.h: New files. * kern/startup.c: Include <device/intr.h> (start_kernel_threads): Start intr_thread thread. * linux/dev/arch/i386/kernel/irq.c: Include <device/intr.h> (linux_action): Add user_intr field. (linux_intr): Call user_intr action if any. (mask_irq, unmask_irq): Move functions to i386/i386/pic.c (__disable_irq, __enable_irq): Move functions to i386/i386/irq.c. (install_user_intr_handler): New function. (request_irq): Initialize user_intr field. * linux/src/include/asm-i386/irq.h (__disable_irq, __enable_irq): Remove prototypes. * i386/i386/pic.c (mask_irq, unmask_irq): New functions. * i386/i386/pic.h (mask_irq, unmask_irq): New prototypes.
* Support GPT disklabels and build them by defaultнаб2020-06-012-0/+318
| | | | Based on UEFI 2.8A spec
* Add kmem_vallocSamuel Thibault2020-05-011-1/+3
| | | | | | | | | | | Functions like vremap need to allocate some virtual addressing space before making their own mapping. kmem_alloc_wired can be used for that but that wastes memory. * vm/vm_kern.c (kmem_valloc): New function. * vm/vm_kern.h (kmem_valloc): New prototype. * linux/dev/glue/kmem.c (vremap): Call kmem_valloc instead of kmem_alloc_wired. Also check that `offset' is aligned on a page.
* Fix build with -fno-commonSamuel Thibault2020-03-312-2/+2
| | | | | | | | | | | | | | | | which will be the default in gcc-10. * device/io_req.h (io_inband_cache): Add extern qualifier. * device/tty.h (tthiwat, ttlowat): Likewise. * i386/i386/db_machdep.h (ddb_regs): Likewise. * kern/cpu_number.h (master_cpu): Likewise. * kern/time_stamp.h (ts_tick_count): Likewise. * linux/src/drivers/scsi/in2000.h (proc_scsi_in2000): Likewise. * device/ds_routines.c (io_inband_cache): New variable. * i386/i386/db_interface.c (ddb_regs): Likewise. * kern/processor.c (master_cpu): Likewise. * kern/time_stamp.c (ts_tick_count): Likewise. * linux/pcmcia-cs/modules/pci_fixup.c (pci_root): Remove variable.
* irq: Add disabling counterSamuel Thibault2019-11-122-4/+53
| | | | | | | | | | | * linux/dev/arch/i386/kernel/irq.c (ndisabled_irq): New array. (__disable_irq, __enable_irq): New functions, count with ndisabled_irq before really calling mask_irq/unmask_irq. (linux_pic_mask): New variable. (disable_irq, enable_irq): Manage linux_pic_mask and call __disable_irq/__enable_irq instead of calling mask_irq/unmask_irq. * linux/src/include/asm-i386/irq.h (__disable_irq, __enable_irq): New prototypes.
* spl: Remove intpri arraySamuel Thibault2019-11-105-59/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | And simplify prtnull vs intnull vs linux_bad_intr. * i386/i386/ipl.h (intpri): Remove declaration * i386/i386/pic.c (prtnull_count): Remove variable. (prtnull): Remove function. * i386/i386/pic.h (prtnull): Remove declaration. * i386/i386at/autoconf.c (take_dev_irq, take_ctlr_irq): Use ivect instead of intpri to determine irq availability. Do not set intpri. * i386/i386at/pic_isa.c (ivect): Replace prtnull with intnull. (intpri): Remove array. * linux/dev/arch/i386/kernel/irq.c (linux_intr_pri): Remove variable. (linux_bad_intr): Remove function. (setup_x86_irq): Do not check intpri coherency. Do not set intpri. Set default ivect to intnull instead of linux_bad_intr. (probe_irq_on): Check ivect against intnull instead of linux_bad_intr. Do not set intpri. (probe_irq_off): Likewise. (reserve_mach_irqs): Do not check against prtnull. (old_clock_pri): Remove variable. (init_IRQ): Do not set intpri. Do not set ivect to linux_bad_intr. (restore_IRQ): Do not set ivect. * i386/i386/pit.c (clkstart): Do not set intpri. * i386/i386at/kd_mouse.c (kd_mouse_open, kd_mouse_close): Likewise. * linux/dev/drivers/block/genhd.c (device_setup): Do not set linux_intr_pri. * linux/dev/glue/block.c (init_partition, device_open): Likewise. * linux/dev/glue/net.c (device_open): Likewise. * linux/dev/glue/glue.h (linux_intr_pri, linux_bad_intr): Remove declarations.
* Make default boot less scarySamuel Thibault2019-11-102-10/+19
| | | | | | | | * linux/configfrag.ac (AM53C974, aha1542, eata, eata_pio, ppa, wd7000, 3c515, de600, de620): Disable by default drivers for elder hardware, which have scary boot messages. * linux/pcmcia-cs/modules/ds.c (init_pcmcia_ds): Make message about socket not being found less scary.
* simplify interrupt handlingDamien Zammit2019-11-106-23/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | We have removed spl levels, now remove the machinery to manage different PIC masks according to levels. Only keep machinery to disable interrupts whatever the level. * i386/i386/pic.c (pic_mask): Remove array. (picinit): Do not form PIC mask. Set initial PIC mask to 0. (form_pic_mask): Remove function. * i386/i386/pic.h (form_pic_mask, pic_mask): Remove declarations. * i386/i386/spl.S (SETMASK): Remove macro. (XEN_SETMASK): Add macro, containing the Xen version of SETMASK. (spl0, splx_cli, spl) [MACH_XEN]: Call XEN_SETMASK instead of SETMASK. * i386/i386/pit.c (clkstart): Do not call form_pic_mask. * i386/i386at/autoconf.c (take_dev_irq, take_ctlr_irq): Likewise. * i386/i386at/kd_mouse.c (kd_mouse_open, kd_mouse_close): Likewise. * linux/dev/arch/i386/kernel/irq.c (mask_irq, unmask_irq): Directly update curr_pic_mask without using pic_mask array. (init_IRQ, restore_IRQ): do not call form_pic_mask. * linux/dev/include/asm-i386/system.h: Include <i386/ipl.h>. (__save_flags, __restore_flags): Use curr_ipl and splx instead of hardware flags. * linux/dev/init/main.c (linux_init): Do not call cli. * linux/dev/kernel/sched.c (linux_timer_intr): Do not use pic_mask. * linux/src/drivers/block/ide.c (try_to_identify): Disable irq probing. * linux/src/drivers/scsi/NCR53c406a.c (NCR53c406a_detect): Disable irq probing.
* ide: Use default IRQ by defaultSamuel Thibault2019-11-101-0/+1
| | | | | | | | To avoid even trying to probe IRQs. Nowadays' hardware use the default IRQ anyway. * linux/src/drivers/block/ide.c (init_hwif_data): Set hwif->irq to default_irqs[index].
* compiler-gcc*.h: Keep on the gcc 5 version for nowSamuel Thibault2019-09-065-268/+4
| | | | | | | | | | We can introduce other versions if we ever need to (which is unlikely since we plan to get rid of the Linux drivers). * compiler-gcc.h: Include compiler-gcc5.h for all compiler versions starting from gcc 5. * compiler-gcc6.h, compiler-gcc7.h, compiler-gcc8.h, compiler-gcc9.h: Remove.
* Add gcc-9 compatibilitySamuel Thibault2019-08-311-0/+67
| | | | * linux/src/include/linux/compiler-gcc9.h: New file.
* Fix printk formatSamuel Thibault2019-08-111-5/+5
| | | | | * linux/dev/drivers/block/ahci.c (ahci_identify, ahci_probe_port): Fix format.
* ahci: Ignore multifunction bit in PCI header typeSamuel Thibault2019-04-271-0/+2
| | | | | * linux/dev/drivers/block/ahci.c (ahci_probe_dev): Clear bit 7 of hdrtype.
* Move -D__ASSEMBLY__ to general AM_CCASFLAGSSamuel Thibault2018-12-301-1/+1
| | | | | | | Since it is used not only by linux bits. * linux/Makefrag.am (liblinux_a_CCASFLAGS): Remove -D__ASSEMBLY__ * Makefile.am (AM_CCASFLAGS): Add -D__ASSEMBLY__
* Add gcc-8 compatibilitySamuel Thibault2018-07-281-0/+67
| | | | * linux/src/include/linux/compiler-gcc8.h: New file.
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