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2016-02-28Cleanupsjustus/dde-0Justus Winter
2016-02-27Drop new notification, the old one is fine and turned out to be extensibleJustus Winter
2016-02-27No need for a new kind of notification, we can provide a smoother upgrade pathJustus Winter
2016-02-26New kind of notification, untestedJustus Winter
2016-02-26Avoid cli/sti in favor of cpu_intr_{save,restore}Justus Winter
2016-02-26Add copyright noticesJustus Winter
2016-02-26Fix infinite loop with cli if netdde is killed with pending irqsJustus Winter
2016-02-26Fix xen buildJustus Winter
2016-02-26Fix reference counting; use dead-name notificationJustus Winter
2016-02-26Use the slab allocatorJustus Winter
2016-02-26ReorderJustus Winter
2016-02-26Fix synchronizationJustus Winter
2016-02-25Some cleanups of the userspace interrupt handlingJustus Winter
2016-02-25Rework/comment on the userspace interrupt handlingJustus Winter
2016-02-25Disable disabling the irq via device_intr_enableJustus Winter
2016-02-2570_dde.patchJustus Winter
2016-02-02Stack the slab allocator directly on top of the physical allocatorRichard Braun
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.
2015-09-27Fix build with -DDEBUGJustus Winter
* 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.
2015-07-11kern: make sure the queue macros are only used on queuesJustus Winter
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.
2015-06-28i386: improve the immediate consoleJustus Winter
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.
2015-05-19kern: import `macros.h' from x15Justus Winter
Import the macro definitions from the x15 kernel project, and replace all similar definitions littered all over the place with it. Importing this file will make importing code from the x15 kernel easier. We are already using the red-black tree implementation and the slab allocator from it, and we will import even more code in the near future. * kern/list.h: Do not define `structof', include `macros.h' instead. * kern/rbtree.h: Likewise. * kern/slab.c: Do not define `ARRAY_SIZE', include `macros.h' instead. * i386/grub/misc.h: Likewise. * i386/i386/xen.h: Do not define `barrier', include `macros.h' instead. * kern/macro_help.h: Delete file. Replaced by `macros.h'. * kern/macros.h: New file. * Makefrag.am (libkernel_a_SOURCES): Add new file, remove old file. * device/dev_master.h: Adopt accordingly. * device/io_req.h: Likewise. * device/net_io.h: Likewise. * i386/intel/read_fault.c: Likewise. * ipc/ipc_kmsg.h: Likewise. * ipc/ipc_mqueue.h: Likewise. * ipc/ipc_object.h: Likewise. * ipc/ipc_port.h: Likewise. * ipc/ipc_space.h: Likewise. * ipc/ipc_splay.c: Likewise. * ipc/ipc_splay.h: Likewise. * kern/assert.h: Likewise. * kern/ast.h: Likewise. * kern/pc_sample.h: Likewise. * kern/refcount.h: Likewise. * kern/sched.h: Likewise. * kern/sched_prim.c: Likewise. * kern/timer.c: Likewise. * kern/timer.h: Likewise. * vm/vm_fault.c: Likewise. * vm/vm_map.h: Likewise. * vm/vm_object.h: Likewise. * vm/vm_page.h: Likewise.
2015-05-02Fix warningsSamuel Thibault
* device/ds_routines.c (device_open, ds_open_done, device_close, device_write, device_write_inband, ds_write_done, device_read, device_read_inband, ds_read_done, device_set_status, mach_device_get_status, device_set_filter, device_map, ds_no_senders): Convert from K&R declaration, fix type of `device' into void*.
2015-05-02Fix block_io_mmap prototypeSamuel Thibault
* device/blkio.c (block_io_mmap): Fix prototype of dummy function. * device/blkio.h (block_io_mmap): Likewise.
2015-01-02device: Fix typos in comments (found by codespell)Stefan Weil
Signed-off-by: Stefan Weil <sw@weilnetz.de>
2014-06-11device: fix net_rcv_msg-messagesJustus Winter
Previously, all net_rcv_msg-messages sent by net_deliver were malformed. It never was a problem in practice, since the messages are not complex and thus the kernel does not try to parse the message. struct net_rcv_msg contains an additional field of type boolean_t. This field has no associated type descriptor, so it must not be included in the message. * device/net_io.c (net_deliver): Account for the extra field in the msgh_size calculation.
2014-04-04Convert from K&R to ANSIMarin Ramesa
Convert from K&R style function definitions to ANSI style function definitions. * ddb/db_access.c: Convert function prototypes from K&R to ANSI. * ddb/db_aout.c: Likewise. * ddb/db_break.c: Likewise. * ddb/db_command.c: Likewise. * ddb/db_cond.c: Likewise. * ddb/db_examine.c: Likewise. * ddb/db_expr.c: Likewise. * ddb/db_ext_symtab.c: Likewise. * ddb/db_input.c: Likewise. * ddb/db_lex.c: Likewise. * ddb/db_macro.c: Likewise. * ddb/db_mp.c: Likewise. * ddb/db_output.c: Likewise. * ddb/db_print.c: Likewise. * ddb/db_run.c: Likewise. * ddb/db_sym.c: Likewise. * ddb/db_task_thread.c: Likewise. * ddb/db_trap.c: Likewise. * ddb/db_variables.c: Likewise. * ddb/db_watch.c: Likewise. * device/blkio.c: Likewise. * device/chario.c: Likewise. * device/dev_lookup.c: Likewise. * device/dev_name.c: Likewise. * device/dev_pager.c: Likewise. * device/ds_routines.c: Likewise. * device/net_io.c: Likewise. * device/subrs.c: Likewise. * i386/i386/db_interface.c: Likewise. * i386/i386/fpu.c: Likewise. * i386/i386/io_map.c: Likewise. * i386/i386/loose_ends.c: Likewise. * i386/i386/mp_desc.c: Likewise. * i386/i386/pcb.c: Likewise. * i386/i386/phys.c: Likewise. * i386/i386/trap.c: Likewise. * i386/i386/user_ldt.c: Likewise. * i386/i386at/com.c: Likewise. * i386/i386at/kd.c: Likewise. * i386/i386at/kd_event.c: Likewise. * i386/i386at/kd_mouse.c: Likewise. * i386/i386at/kd_queue.c: Likewise. * i386/i386at/lpr.c: Likewise. * i386/i386at/model_dep.c: Likewise. * i386/i386at/rtc.c: Likewise. * i386/intel/pmap.c: Likewise. * i386/intel/read_fault.c: Likewise. * ipc/ipc_entry.c: Likewise. * ipc/ipc_hash.c: Likewise. * ipc/ipc_kmsg.c: Likewise. * ipc/ipc_marequest.c: Likewise. * ipc/ipc_mqueue.c: Likewise. * ipc/ipc_notify.c: Likewise. * ipc/ipc_port.c: Likewise. * ipc/ipc_right.c: Likewise. * ipc/mach_debug.c: Likewise. * ipc/mach_msg.c: Likewise. * ipc/mach_port.c: Likewise. * ipc/mach_rpc.c: Likewise. * kern/act.c: Likewise. * kern/exception.c: Likewise. * kern/ipc_mig.c: Likewise. * kern/ipc_tt.c: Likewise. * kern/lock_mon.c: Likewise. * kern/mach_clock.c: Likewise. * kern/machine.c: Likewise. * kern/printf.c: Likewise. * kern/priority.c: Likewise. * kern/startup.c: Likewise. * kern/syscall_emulation.c: Likewise. * kern/syscall_subr.c: Likewise. * kern/thread_swap.c: Likewise. * kern/time_stamp.c: Likewise. * kern/timer.c: Likewise. * kern/xpr.c: Likewise. * vm/memory_object.c: Likewise. * vm/vm_debug.c: Likewise. * vm/vm_external.c: Likewise. * vm/vm_fault.c: Likewise. * vm/vm_kern.c: Likewise. * vm/vm_map.c: Likewise. * vm/vm_pageout.c: Likewise. * vm/vm_user.c: Likewise.
2014-04-04Use explicit prototypes for struct dev_ops fieldsMarin Ramesa
* device/conf.h: Include <sys/types.h>, <mach/port.h>, <mach/vm_prot.h>. Predefine struct io_req, io_req_t and io_return_t. (dev_ops): Add explicit prototypes for d_open, d_close, d_read, d_write, d_getstat, d_setstat, d_mmap, d_port_death. (nulldev_open, nulldev_close, nulldev_read, nulldev_write, nulldev_getstat, nulldev_setstat, nulldev_portdeath): Add prototypes. (nomap): Fix prototype. * device/dev_name.c (nulldev_open, nulldev_close, nulldev_read, nulldev_write, nulldev_getstat, nulldev_setstat, nulldev_portdeath): New functions. (nomap): Fix prototype. * device/ds_routines.c (dev_close): Pass 0 as flag parameter. * device/kmsg.c (kmsgclose): Drop return value. * device/kmsg.h (kmsgclose): Fix prototype. * i386/i386at/com.c (comopen): Fix prototype. (comclose): Fix prototype, drop return value. (comread, comwrite): Fix prototype. * i386/i386at/com.h (comopen, comclose, comread, comwrite): Fix prototype. * i386/i386at/conf.c (dev_ops): Use nulldev_open, nulldev_close, nulldev_read, nulldev_write, nulldev_getstat, nulldev_setstat, nulldev_portdeath where appropriate. * i386/i386at/kd.c (kdclose, kdread, kdwrite, kdmmap): Fix prototype. * i386/i386at/kd.h (kdclose, kdread, kdwrite, kdmmap): Likewise. * i386/i386at/kd_event.c (kbdopen): Likewise. * i386/i386at/kd_event.h (kbdopen): Likewise. * i386/i386at/kd_mouse.c (mouseopen): Likewise. * i386/i386at/kd_mouse.h (mouseopen): Likewise. * i386/i386at/lpr.c (lpropen, lprclose, lprread, lprwrite): Likewise. * i386/i386at/lpr.h (lpropen, lprclose, lprread, lprwrite): 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. * kern/mach_clock.c (timeopen, timeclose): Likewise. * kern/mach_clock.h: Include <sys/types.h>, predefine struct io_req and io_req_t. (timeopen, timeclose): Fix prototype.
2014-02-05Remove duplicate typedefSamuel Thibault
* device/net_io.c (net_rcv_port_t, net_hash_entry_t, net_hash_header_t): Remove duplicate typedefs.
2013-12-20Mark pure functions with attribute pureMarin Ramesa
2013-12-20Declare void argument lists (part 2)Marin Ramesa
Declare void argument lists that were not declared in the first part of this patch and * kern/sched_prim.h (recompute_priorities): Fix prototype. * kern/startup.c (setup_main) (recompute_priorities): Fix call.
2013-12-17Mark functions that don't return with attribute noreturnMarin Ramesa
2013-12-17device: qualify pointers whose dereferenced values are constant with constMarin Ramesa
2013-12-17Cleanup of the copyin() and copyout() callsMarin Ramesa
* device/ds_routines.c (device_write_trap) (copyin) (data): Cast to (void *). Argument is an address. (device_write_trap) (copyin) (io_data): Don't cast. (device_writev_trap) (copyin) (iovec, stack_iovec): Likewise. (device_writev_trap) (copyin) (data, p): Cast to (void *). Arguments are addresses. * kern/bootstrap.c (build_args_and_stack) (copyout) (arg_count, string_pos, zero): Don't cast. * kern/ipc_mig.c (syscall_vm_map) (copyin, copyout) (addr, address): Likewise. (syscall_vm_allocate) (copyin, copyout) (addr, address): Likewise. (syscall_task_create) (copyout) (name, child_task): Likewise. (syscall_mach_port_allocate) (copyout) (name, namep): Likewise. * kern/time_stamp.c (copyout) (temp, tsp): Likewise.
2013-12-15device/dev_pager.c (device_pager_data_request_done): cast to size_t instead ↵Marin Ramesa
to unsigned * device/dev_pager.c (device_pager_data_request_done) (memset) (io_residual): Cast to size_t instead to unsigned.
2013-12-15device/dev_pager.c: remove unnecessary castsMarin Ramesa
Variable pager is already of ipc_port_t type. * device/dev_pager.c: Remove unnecessary casts.
2013-12-15Declare void argument listsMarin Ramesa
2013-12-11Cleanup of the memcpy(), memmove(), memcmp() and memset() callsMarin Ramesa
Addresses were cast to (void *). Pointers uncasted. * device/ds_routines.c (ds_read_done) (memset) (start_sent): Cast to (void *) instead to (char *). Argument is an address. (ds_read_done) (memset) (end_data): Likewise. * i386/i386/pcb.c (thread_getstatus) (memcpy) (pm): Don't cast. Argument is a pointer. (thread_getstatus) (memcpy) (iopb): Likewise. * i386/i386at/immc.c (immc_cnputc) (memmove): Cast first argument to (void *). Argument is an address. (immc_cnputc) (memmove): Cast second argument to (void *). Argument is an address. (immc_cnputc) (memset): Cast first argument to (void *). Argument is an address. * i386/i386at/model_dep.c (i386at_init) (memcpy) (phystokv): Cast to (void *) instead to (char *). Argument is an address. * i386/intel/pmap.c (pmap_init) (memset) (addr): Likewise. * ipc/mach_debug.c (mach_port_space_info) (memset) (table_addr + size_used): Likewise. (mach_port_space_info) (memset) (tree_addr + size_used): Likewise. * kern/host.c (host_processor_sets) (memcpy) (newaddr): Likewise. (host_processor_sets) (memcpy) (addr): Likewise. * kern/xpr.c (xprbootstrap) (memset) (addr): Likewise. * vm/vm_debug.c (mach_vm_object_pages) (memset) (addr + size_used): Likewise.
2013-12-10device/subrs.c: use io_req_t instead of struct bufMarin Ramesa
Struct buf is not defined. Use io_req_t instead of it. * device/subrs.c (harderr) (bp): Change name to ior and use io_req_t as type instead of (struct buf *). (harderr) (minor): Use io_unit instead of b_dev. (harderr): Use io_recnum instead of b_blkno. (gateblk): Use io_req_t as return value instead of (struct buf *). (brelse) (bp): Change name to ior and use io_req_t as type instead of (struct buf *). (brelse) (ior): Remove variable.
2013-12-10device/net_io.c: remove forward declarationsMarin Ramesa
* device/net_io.c (bpf_hash, net_do_filter, bpf_do_filter, hash_ent_remove, net_free_dead_infp, net_free_dead_entp, bpf_validate, bpf_eq, net_add_q_info, bpf_match): Remove forward declarations. * device/net_io.h (net_rcv_port, net_hash_entry, net_hash_header): Declare forward. (bpf_hash, net_do_filter, bpf_do_filter, hash_ent_remove, net_free_dead_infp, net_free_dead_entp, bpf_validate, bpf_eq, net_add_q_info, bpf_match): Add prototypes.
2013-12-10device/dev_pager.c: remove forward declarationsMarin Ramesa
* device/dev_pager.c (device_pager_data_request_done, device_pager_data_write_done): Remove forward declarations. * device/dev_pager.h (device_pager_data_request_done, device_pager_data_write_done): Add prototypes.
2013-12-10device/dev_pager.c: remove forward declarationMarin Ramesa
* Makefrag.am: Include device/blkio.h. * device/blkio.h: New file. Add copyright. [_DEVICE_BLKIO_H_]: Add ifndef. (block_io_mmap): Add prototype. * device/dev_pager.c: Include device/blkio.h. (block_io_mmap): Remove forward declaration.
2013-12-10device/dev_pager.c (device_pager_data_request_done): remove unnecessary castMarin Ramesa
The argument to trunc_page() is already cast to vm_offset_t in the macro itself. * device/dev_pager.c (device_pager_data_request_done) (trunc_page) (io_data): Don't cast to vm_offset_t.
2013-12-10device/dev_pager.c (device_pager_data_request): cast to (void *) instead to ↵Marin Ramesa
(char *) * device/dev_pager.c (device_pager_data_request) (vm_object_page_map) (ds): Cast to (void *) instead to (char *).
2013-12-10device/dev_pager.c (device_pager_data_request): remove forward declarationMarin Ramesa
* Makefrag.am: Include device/dev_pager.h. * device/dev_pager.c: Likewise. (device_map_page): Remove forward declaration. * device/dev_pager.h: New file. Add copyright. [_DEVICE_DEV_PAGER_H_]: Add ifndef. (device_map_page): Add prototype.
2013-12-10device/cons.c: fix argument listMarin Ramesa
* device/cons.c (romgetc, romputc): Fix argument list.
2013-12-10device/cirbuf.c (cb_free): use vm_size_t instead of an intMarin Ramesa
This is more in line with the call to kfree() in cb_free(). * device/cirbuf.c (cb_free) (size): Use vm_size_t instead of an int.
2013-12-10device/cirbuf.c (cb_alloc): use vm_size_t instead of an intMarin Ramesa
This is more in line with the call to kalloc() in cb_alloc(). * device/chario.c (tty_inq_size, tty_outq_size): Use unsigned int instead if an int. * device/cirbuf.c (cb_alloc) (buf_size): Use vm_size_t instead of an int. * device/cirbuf.h (cb_alloc) (buf_size): Likewise.
2013-12-10device/chario.c: trivial stylistic fix for consistencyMarin Ramesa
* device/chario.c: Trivial stylistic fix for consistency.
2013-12-09i386/i386at/kd.c: use io_req instead of uioMarin Ramesa
Struct uio is nowhere defined and in device/buf.h the string uio is defined as io_req. Remove all declarations of uio structure and use io_req_t instead of it. * device/buf.h (uio, io_req): Remove definition. * i386/i386at/kd.c: Remove comment. (kdread): Use io_req_t. (kdwrite): Likewise. * i386/i386at/kd.h (kdread, kdwrite): Use io_req_t as argument type.
2013-12-09i386/i386at/com.c: fix assignment from incompatible pointer typeMarin Ramesa
* device/tty.h (tty): Modify so that correct argument list and return type is listed.
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