aboutsummaryrefslogtreecommitdiff
path: root/device
Commit message (Collapse)AuthorAgeFilesLines
* intr: Simplify clearing after intr port deallocationSamuel Thibault2023-02-161-35/+21
| | | | | This notably avoids calling ipc_port_release from the interrupt handler, which was completely unsafe.
* Document spl levels of locks taken during interruptsSamuel Thibault2023-02-153-2/+5
|
* slock: Fix initialization of statically-allocated slocksSamuel Thibault2023-02-085-12/+9
| | | | (this is actually a no-op for i386)
* dev_pager.c: use mach_msg_type_number_tFlavio Cruz2023-01-251-1/+1
| | | | | Otherwise it will fail to compile due to conflicting types. Message-Id: <Y89jA/6y4BgKW2Jb@jupiter.tail36e24.ts.net>
* Fix several warnings for -Wmissing-prototypesFlavio Cruz2023-01-242-47/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 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>
* Remove existing old style definitions and use -Wold-style-definition.Flavio Cruz2023-01-194-26/+19
| | | | Message-Id: <Y8mYd/pt/og4Tj5I@mercury.tail36e24.ts.net>
* Include mig generated device headers to avoid missing prototypesFlavio Cruz2023-01-196-13/+15
| | | | | | Some of the existing definitions lacked the const qualifier, which was added. Message-Id: <Y8mYZEKqWN43n2SA@mercury.tail36e24.ts.net>
* update writev syscall signature with rpc typesLuca Dariz2023-01-183-17/+21
| | | | | | | | | | * device/device_emul.h: write/writev: update trap argument types * device/ds_routines.c: update argument types and adjust copyin * device/ds_routines.h: write/writev: update trap argument type * include/device/device_types.h: add rpc_io_buf_vec_t type * kern/ipc_mig.c: write/writev: update trap argument type * kern/ipc_mig.h: Likewise Message-Id: <20230116105857.240210-5-luca@orpolo.org>
* add missing argument namesLuca Dariz2023-01-161-3/+3
| | | | | | | | | | | | | | | * ddb/db_break.c: add argument name, compilation fails on Debian/Linux stable with gcc 10.2 otherwise. For some reason on Debian/Hurd a simple test program without argname succeeds, unless I force -std=c11 or similar; I suppose because newer gcc have different defaults. Gnumach seem to still require c89 for some older code, otherwise we could explicitely use gnu99/c99 or gnu11/c11. * ddb/db_cond.c: Likewise * ddb/db_examine.c: Likewise * ddb/db_macro.c: Likewise * ddb/db_watch.c: Likewise * device/dev_name.c: Likewise Message-Id: <20230116130426.246584-1-luca@orpolo.org>
* Fix some warnings with -Wmissing-prototypes.Flavio Cruz2022-12-2711-75/+32
| | | | | | | | | | | Marked some functions as static (private) as needed and added missing includes. This also revealed some dead code which was removed. Note that -Wmissing-prototypes is not enabled here since there is a bunch more warnings. Message-Id: <Y6j72lWRL9rsYy4j@mars>
* Use -Wstrict-prototypes and fix warningsFlavio Cruz2022-12-218-68/+25
| | | | | | | Most of the changes include defining and using proper function type declarations (with argument types declared) and avoiding using the K&R style of function declarations. Message-Id: <Y6Jazsuis1QA0lXI@mars>
* Use long_natural_t for recnum_tFlavio Cruz2022-12-181-1/+1
| | | | | | | | | | | | For 64 bits, device operations will provide an addressing space of 64 bits. Also define the translation functions if long_natural_t or long_integer_t are ever used in RPCs. Note that MIG does not implicitly inherit the translation functions from types hence the need to redefine them for recnum_t. Message-Id: <Y59MFzekEA0YUXIw@mars>
* Define vm_size_t and vm_offset_t as __mach_uintptr_t.Flavio Cruz2022-12-061-1/+1
| | | | | | | | | | This allows *printf to use %zd/%zu/%zx to print vm_size_t and vm_offset_t. Warnings using the incorrect specifiers were fixed. Note that MACH_PORT_NULL became just 0 because GCC thinks that we were comparing a pointer to a character (due to it being an unsigned int) so I removed the explicit cast. Message-Id: <Y47UNdcUF35Ag4Vw@reue>
* fix warnings for 32 bit buildsLuca Dariz2022-08-271-2/+2
| | | | | Signed-off-by: Luca Dariz <luca@orpolo.org> Message-Id: <20220628101054.446126-13-luca@orpolo.org>
* dev_pager.c: fix wrong condition to remove entriesJoan Lledó2022-08-091-2/+2
| | | | | | | * device/dev_pager.c: * dev_pager_hash_delete() and dev_device_hash_delete(): * Fix condition to call kmem_cache_free(), it was being called always. * https://lists.gnu.org/archive/html/bug-hurd/2022-08/msg00002.html
* device intr: Return an error on bogus intr portSamuel Thibault2022-03-131-3/+5
| | | | Rather than risking dereferencing NULL.
* device intr: Fix hypothetical NULL dererefenceSamuel Thibault2022-03-131-1/+1
|
* device: Fix NULL dereferenceSamuel Thibault2022-03-131-2/+6
|
* device: Avoid NULL dereferenceSamuel Thibault2022-03-131-1/+1
|
* device_map_page: update prototypeSamuel Thibault2022-02-181-1/+1
|
* vm_object: Fix vm_object_page_map map function prototypeSamuel Thibault2022-02-161-1/+1
| | | | The map function is supposed to return physical addresses, thus phys_addr_t.
* Convert from K&R to ANSIEtienne Brateau2021-12-302-22/+8
| | | | | | * device/dev_name.c: Convert function prototypes from K&R to ANSI. * device/subr.c: Convert function prototypes from K&R to ANSI. Message-Id: <20211230112249.13682-2-etienne.brateau@gmail.com>
* Fix rejecting the mapping of some pagesSamuel Thibault2021-11-281-6/+20
| | | | | | The memmmap method may reject some offsets (because it falls in non-device ranges), so device_map_page has to notice this and report the error. device_pager_data_request then has to notice as well and report.
* Drop unused device_pager_releaseSamuel Thibault2021-11-071-13/+0
| | | | * device/dev_pager.c (device_pager_release): Drop unused function.
* dev_pager: rename hash macrosJoan Lledó2021-08-281-13/+13
| | | | | | | | | | Remove the reference to the pager hash since they are used both in the pager and the device hashes. * device/dev_pager.c: * Rename DEV_PAGER_HASH_COUNT to DEV_HASH_COUNT * Rename dev_pager_hash to dev_hash Message-Id: <20210828100252.18376-3-jlledom@mailfence.com>
* dev_pager: implement offsetJoan Lledó2021-08-281-5/+110
| | | | | | | | | | | | | | * device/dev_pager.c: * struct dev_pager: add offset field * new struct dev_device_entry: includes device and offset * new hash table dev_device_hashtable * index [device + offset] * new functions dev_device_hash[init,insert,delete,lookup] * do the same as their counterparts for dev_pager_hashtable * dev_pager_setup(): record the offset * device_map_page(): add the recorded offset on the fly Message-Id: <20210828100252.18376-2-jlledom@mailfence.com>
* SMP: Fix warningsSamuel Thibault2021-04-041-2/+2
|
* intr: Always share irqsSamuel Thibault2021-03-311-0/+2
| | | | | | We currently already always assume that irqs user handlers can be shared * device/intr.c (install_user_intr_handler): Add SA_SHIRQ to flags.
* intr: Add user interrupt handling code for non-Linux caseDamien Zammit2021-03-311-0/+80
| | | | | | | | | | * 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>
* device_pager_setup: Add FIXME commentSamuel Thibault2020-09-101-0/+1
|
* device intr: Fix reference leakSamuel Thibault2020-07-191-1/+7
| | | | | | | | On RPC success we have to release the passed send rights, otherwise references accumulate and we never notice when the receiver dies. * device/ds_routines.c (ds_device_intr_ack): On success, call ipc_port_release_send on the notification receive port.
* intr_register: better document how we'd handle crashesSamuel Thibault2020-07-191-3/+2
|
* 64bit: fix buildSamuel Thibault2020-07-181-6/+6
| | | | | | | * device/ds_routines.c (ds_device_intr_register, ds_device_intr_ack) [__x86_64__]: Disable. * x86_64/Makefrag.am (libkernel_a_SOURCES): Add i386/i386/irq.c and i386/i386/irq.h.
* Fix xen buildSamuel Thibault2020-07-151-0/+8
| | | | | | | | * device/ds_routines.c (ds_device_intr_register, ds_device_intr_ack) [MACH_XEN]: Return D_INVALID_OPERATION. * i386/Makefrag.am [!PLATFORM_at] (libkernel_a_SOURCES): Remove i386/i386/irq.c and i386/i386/irq.h. * i386/i386/irq.c: Include <kern/assert.h>.
* Add hardware interrupt notification mechanismSamuel Thibault2020-07-104-0/+408
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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.
* Fix build with -fno-commonSamuel Thibault2020-03-313-2/+3
| | | | | | | | | | | | | | | | 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.
* Restore vm_size_t to natural_tSamuel Thibault2020-03-311-1/+1
| | | | | | | | | | | Plenty of places such as glibc RPC uses currently assume that vm_size_t is a natural_t (thus int on 32bit), not an unsigned long. * i386/include/mach/i386/vm_types.h (vm_size_t) [!__x86_64__]: Set type to natural_t. * device/dev_page.c (device_pager_data_request): Cast vm_size_t to unsigned long. * i386/i386at/model_dep.c (c_boot_entry): Likewise.
* 64bit: fix warningsSamuel Thibault2020-03-292-0/+13
| | | | | | | | | | | | | | | | | | | | | | | * device/net_io.h (net_set_filter, ethernet_priority): Add prototypes. * device/subrs.h: Include <device/if_hdr.h>. (if_init_queues): Add prototype. * i386/i386/model_dep.h (machine_relax): Add prototype. * i386/i386/trap.c (i386_astintr): Move mycpu variable definition to where it is used. * i386/i386at/model_dep.c (i386at_init): Likewise for nb_direct, addr, delta. * i386/xen/xen.c (return_to_iret): Change type to char[]. * xen/console.c: Include <i386at/kd.h>. * xen/evt.c (hyp_evt_handler): Cast NEVNT to int. * xen/grant.c: Include <model_dep.h>. (hyp_grant_takeback, hyp_grant_init): Fix print format. * xen/net.c: Include <device/subrs.h>. (paranoia): Remove variable. (hyp_net_init, device_close, device_open): Cast nd - vif_data to int. Fix print format. * xen/store.c (store_put): Cast sizeof to int. * xen/time.c: Include "xen.h". * xen/xen.h (hypclock_machine_intr): Add prototype.
* 64bit: Fix vm_size_t sizeSamuel Thibault2020-03-291-1/+1
| | | | | | | | | | It needs to be able to hold > 4G size. * i386/include/mach/i386/vm_types.h (vm_size_t): Set type to unsigned long. * vm/vm_user.c (vm_read, vm_write): Fix type according to RPC. * i386/i386at/model_dep.c (c_boot_entry): Fix format. * device/dev_pager.c (device_pager_data_request): Fix format.
* device: Fix d_mmap typeSamuel Thibault2018-07-284-6/+6
| | | | | | | | | | | | | | | * device/conf.h (dev_ops): Make d_mmap return vm_offset_t instead of int. (nomap): Update accordingly. * device/blkio.c (block_io_mmap): Likewise. * device/blkio.h (block_io_mmap): Likewise. * device/dev_name.c (nomap): Likewise. * i386/i386at/kd.c (kdmmap): Likewise. * i386/i386at/kd.h (kdmmap): Likewise. * i386/i386at/mem.c (memmmap): Likewise. * i386/i386at/mem.h (memmmap): Likewise. * i386/i386at/model_dep.c (timemmap): Likewise. * i386/i386at/model_dep.h (timemmap): Likewise.
* Fix dev_ops typesSamuel Thibault2018-07-289-14/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * device/conf.h: Include <device/device_types.h>. (dev_ops): Make d_getstat and d_setstat fields use dev_flavor_t, dev_status_t, and mach_msg_type_number_t types. * device/tty.h: (t_getstat, t_setstat): Likewise. * device/conf.h (nulldev_getstat, nulldev_setstat): Fix parameter types accordingly. * device/dev_name.c (nulldev_getstat, nulldev_setstat): Likewise. * device/kmsg.c (kmsggetstat): Likewise. * device/kmsg.h (kmsggetstat): Likewise. * device/net_io.c (net_getstat): Likewise. * device/net_io.h (net_getstat): Likewise. * i386/i386at/com.c (comgetstat, comsetstat): Likewise. * i386/i386at/com.h (comgetstat, comsetstat): Likewise. * i386/i386at/kd.c (kdgetstat, kdsetstat): Likewise. * i386/i386at/kd.h (kdgetstat, kdsetstat): Likewise. * i386/i386at/kd_event.c (kbdgetstat, kbdsetstat): Likewise. * i386/i386at/kd_event.h (kbdgetstat, kbdsetstat): Likewise. * i386/i386at/kd_mouse.c (mousegetstat): Likewise. * i386/i386at/kd_mouse.h (mousegetstat): Likewise. * i386/i386at/lpr.c (lprgetstat, lprsetstat): Likewise. * i386/i386at/lpr.h (lprgetstat, lprsetstat): Likewise. * xen/console.c (hypcngetstat, hypcnsetstat): Likewise. * xen/console.h (hypcngetstat, hypcnsetstat): Likewise. * device/dev_hdr.h: Forward-declare struct dev_ops and dev_ops_t type instead of including <device/conf.h>. * device/dev_pager.c: Include <device/conf.h> * i386/i386/pcb.h: Include <machine/io_perm.h> * i386/i386/thread.h: Do not include <i386/tss.h>
* device: Remove unused file.Justus Winter2017-09-211-44/+0
| | | | * device/dev_forward.defs: Remove unused file.
* Remove deprecated external memory management interface.Justus Winter2016-10-033-168/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * NEWS: Update. * device/dev_pager.c (device_pager_data_request): Prune unused branch. (device_pager_data_request_done): Remove function. (device_pager_data_write): Likewise. (device_pager_data_write_done): Likewise. (device_pager_copy): Use 'memory_object_ready'. * device/dev_pager.h (device_pager_data_write_done): Remove prototype. * device/device_pager.srv (memory_object_data_write): Remove macro. * doc/mach.texi: Update documentation. * include/mach/mach.defs (memory_object_data_provided): Drop RPC. (memory_object_set_attributes): Likewise. * include/mach/memory_object.defs: Update comments. (memory_object_data_write): Drop RPC. * include/mach/memory_object_default.defs: Update comments. * include/mach_debug/vm_info.h (VOI_STATE_USE_OLD_PAGEOUT): Drop macro. * vm/memory_object.c (memory_object_data_provided): Remove function. (memory_object_data_error): Simplify. (memory_object_set_attributes_common): Make static, remove unused parameters, simplify. (memory_object_change_attributes): Update callsite. (memory_object_set_attributes): Remove function. (memory_object_ready): Update callsite. * vm/vm_debug.c (mach_vm_object_info): Adapt to the changes. * vm/vm_object.c (vm_object_bootstrap): Likewise. * vm/vm_object.h (struct vm_object): Drop flag 'use_old_pageout'. * vm/vm_pageout.c: Update comments. (vm_pageout_page): Simplify.
* VM: improve pageout deadlock workaroundRichard Braun2016-09-161-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 5dd4f67522ad0d49a2cecdb9b109251f546d4dd1 makes VM map entry allocation done with VM privilege, so that a VM map isn't held locked while physical allocations are paused, which may block the default pager during page eviction, causing a system-wide deadlock. First, it turns out that map entries aren't the only buffers allocated, and second, their number can't be easily determined, which makes a preallocation strategy very hard to implement. This change generalizes the strategy of VM privilege increase when a VM map is locked. * device/ds_routines.c (io_done_thread): Use integer values instead of booleans when setting VM privilege. * kern/thread.c (thread_init, thread_wire): Likewise. * vm/vm_pageout.c (vm_pageout): Likewise. * kern/thread.h (struct thread): Turn member `vm_privilege' into an unsigned integer. * vm/vm_map.c (vm_map_lock): New function, where VM privilege is temporarily increased. (vm_map_unlock): New function, where VM privilege is decreased. (_vm_map_entry_create): Remove VM privilege workaround from this function. * vm/vm_map.h (vm_map_lock, vm_map_unlock): Turn into functions.
* Remove map entry pageability property.Richard Braun2016-09-071-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | Since the replacement of the zone allocator, kernel objects have been wired in memory. Besides, as of 5e9f6f (Stack the slab allocator directly on top of the physical allocator), there is a single cache used to allocate map entries. Those changes make the pageability attribute of VM maps irrelevant. * device/ds_routines.c (mach_device_init): Update call to kmem_submap. * ipc/ipc_init.c (ipc_init): Likewise. * kern/task.c (task_create): Update call to vm_map_create. * vm/vm_kern.c (kmem_submap): Remove `pageable' argument. Update call to vm_map_setup. (kmem_init): Update call to vm_map_setup. * vm/vm_kern.h (kmem_submap): Update declaration. * vm/vm_map.c (vm_map_setup): Remove `pageable' argument. Don't set `entries_pageable' member. (vm_map_create): Likewise. (vm_map_copyout): Don't bother creating copies of page entries with the right pageability. (vm_map_copyin): Don't set `entries_pageable' member. (vm_map_fork): Update call to vm_map_create. * vm/vm_map.h (struct vm_map_header): Remove `entries_pageable' member. (vm_map_setup, vm_map_create): Remove `pageable' argument.
* Fix gcc-6 warningsSamuel Thibault2016-05-181-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * ddb/db_elf.c (elf_db_sym_init): Turn `i' into unsigned. * device/ds_routines.c (ds_device_open, device_writev_trap): Likewise. * i386/i386/user_ldt.c (i386_set_ldt): Likewise for `i', `min_selector', and `first_desc'. (i386_get_ldt): Likewise for `ldt_count'. (user_ldt_free): Likewise for `i'. * i386/i386/xen.h (hyp_set_ldt): Turn `count' into unsigned long. * i386/intel/pmap.c (pmap_bootstrap): Turn `i', `j' and 'n' into unsigned. (pmap_clear_bootstrap_pagetable): Likewise for `i' and `j'. * ipc/ipc_kmsg.c (ipc_msg_print): Turn `i' and `numwords' into unsigned. * kern/boot_script.c (boot_script_parse_line): Likewise for `i'. * kern/bootstrap.c (bootstrap_create): Likewise for `n' and `i'. * kern/host.c (host_processors): Likewise for `i'. * kern/ipc_tt.c (mach_ports_register): Likewise. * kern/mach_clock.c (tickadj, bigadj): turn into unsigned. * kern/processor.c (processor_set_things): Turn `i' into unsigned. * kern/task.c (task_threads): Likewise. * kern/thread.c (consider_thread_collect, stack_init): Likewise. * kern/strings.c (memset): Turn `i' into size_t. * vm/memory_object.c (memory_object_lock_request): Turn `i' into unsigned. * xen/block.c (hyp_block_init): Use %u format for evt. (device_open): Drop unused err variable. (device_write): Turn `copy_npages', `i', `nbpages', and `j' into unsigned. * xen/console.c (hypcnread, hypcnwrite, hypcnclose): Turn dev to dev_t. (hypcnclose): Return void. * xen/console.h (hypcnread, hypcnwrite, hypcnclose): Fix prototypes accordingly. * xen/evt.c (form_int_mask): Turn `i' into int. * xen/net.c (hyp_net_init): Use %u format for evt. (device_open): Remove unused `err' variable.
* Stack the slab allocator directly on top of the physical allocatorRichard Braun2016-02-024-7/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In order to increase the amount of memory available for kernel objects, without reducing the amount of memory available for user processes, a new allocation strategy is introduced in this change. Instead of allocating kernel objects out of kernel virtual memory, the slab allocator directly uses the direct mapping of physical memory as its backend. This largely increases the kernel heap, and removes the need for address translation updates. In order to allow this strategy, an assumption made by the interrupt code had to be removed. In addition, kernel stacks are now also allocated directly from the physical allocator. * i386/i386/db_trace.c: Include i386at/model_dep.h (db_i386_reg_value): Update stack check. * i386/i386/locore.S (trap_from_kernel, all_intrs, int_from_intstack): Update interrupt handling. * i386/i386at/model_dep.c: Include kern/macros.h. (int_stack, int_stack_base): New variables. (int_stack_high): Remove variable. (i386at_init): Update interrupt stack initialization. * i386/i386at/model_dep.h: Include i386/vm_param.h. (int_stack_top, int_stack_base): New extern declarations. (ON_INT_STACK): New macro. * kern/slab.c: Include vm/vm_page.h (KMEM_CF_NO_CPU_POOL, KMEM_CF_NO_RECLAIM): Remove macros. (kmem_pagealloc, kmem_pagefree, kalloc_pagealloc, kalloc_pagefree): Remove functions. (kmem_slab_create): Allocate slab pages directly from the physical allocator. (kmem_slab_destroy): Release slab pages directly to the physical allocator. (kmem_cache_compute_sizes): Update the slab size computation algorithm to return a power-of-two suitable for the physical allocator. (kmem_cache_init): Remove custom allocation function pointers. (kmem_cache_reap): Remove check on KMEM_CF_NO_RECLAIM. (slab_init, kalloc_init): Update calls to kmem_cache_init. (kalloc, kfree): Directly fall back on the physical allocator for big allocation sizes. (host_slab_info): Remove checks on defunct flags. * kern/slab.h (kmem_slab_alloc_fn_t, kmem_slab_free_fn_t): Remove types. (struct kmem_cache): Add `slab_order' member, remove `slab_alloc_fn' and `slab_free_fn' members. (KMEM_CACHE_NOCPUPOOL, KMEM_CACHE_NORECLAIM): Remove macros. (kmem_cache_init): Update prototype, remove custom allocation functions. * kern/thread.c (stack_alloc): Allocate stacks from the physical allocator. * vm/vm_map.c (vm_map_kentry_cache, kentry_data, kentry_data_size): Remove variables. (kentry_pagealloc): Remove function. (vm_map_init): Update calls to kmem_cache_init, remove initialization of vm_map_kentry_cache. (vm_map_create, _vm_map_entry_dispose, vm_map_copyout): Unconditionnally use vm_map_entry_cache. * vm/vm_map.h (kentry_data, kentry_data_size, kentry_count): Remove extern declarations. * vm/vm_page.h (VM_PT_STACK): New page type. * device/dev_lookup.c (dev_lookup_init): Update calls to kmem_cache_init. * device/dev_pager.c (dev_pager_hash_init, device_pager_init): Likewise. * device/ds_routines.c (mach_device_init, mach_device_trap_init): Likewise. * device/net_io.c (net_io_init): Likewise. * i386/i386/fpu.c (fpu_module_init): Likewise. * i386/i386/machine_task.c (machine_task_module_init): Likewise. * i386/i386/pcb.c (pcb_module_init): Likewise. * i386/intel/pmap.c (pmap_init): Likewise. * ipc/ipc_init.c (ipc_bootstrap): Likewise. * ipc/ipc_marequest.c (ipc_marequest_init): Likewise. * kern/act.c (global_act_init): Likewise. * kern/processor.c (pset_sys_init): Likewise. * kern/rdxtree.c (rdxtree_cache_init): Likewise. * kern/task.c (task_init): Likewise. * vm/memory_object_proxy.c (memory_object_proxy_init): Likewise. * vm/vm_external.c (vm_external_module_initialize): Likewise. * vm/vm_fault.c (vm_fault_init): Likewise. * vm/vm_object.c (vm_object_bootstrap): Likewise. * vm/vm_resident.c (vm_page_module_init): Likewise. (vm_page_bootstrap): Remove initialization of kentry_data.
* Fix build with -DDEBUGJustus Winter2015-09-271-0/+2
| | | | | | | * device/cirbuf.c: Add missing include. * i386/i386/debug.h (dump_ss): Hide declaration from assembler. * i386/i386/debug_i386.c: Fix include. * kern/sched_prim.h: Add missing include, fix declaration.
* kern: make sure the queue macros are only used on queuesJustus Winter2015-07-111-1/+1
| | | | | | | | | | This turns mistakes as the one corrected in e59f05e9 into compile-time errors. * kern/queue.h: Add a new macro, queue_assert, and use it to assert that all arguments given to the queue macros have the correct type. * device/net_io.c (ENQUEUE_DEAD): Adapt to the fact that `queue_next(q)' is no longer an lvalue.
* i386: improve the immediate consoleJustus Winter2015-06-281-0/+11
| | | | | | | | | | | | | | | | | | | Improve the immediate console to the point that it can be enabled and display e.g. assertion failures from very early on (i.e. from `c_boot_entry'). * device/cons.h (romgetc, romputc): New declarations. * i386/configfrag.ac: Add configuration variable. * i386/i386at/conf.c (dev_name_list): Add entry. * i386/i386at/cons_conf.c (constab): Add entry. * i386/i386at/immc.c: Add missing includes. (immc_cnprobe, immc_cninit, immc_cngetc, immc_romputc): New functions. (immc_cnputc): Fix signature, use virtual addresses. * i386/i386at/immc.h: New file. * i386/i386at/kd.c: Use `#if ENABLE_IMMEDIATE_CONSOLE'. * i386/i386at/kd.h (kd_setpos): Add missing declaration. * i386/i386at/model_dep.c (c_boot_entry): Install immediate console as early boot console.
generated by cgit v1.2.3 (git 2.39.1) at 2025-04-08 16:42:08 +0000