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path: root/device/dev_lookup.c
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2015-08-28kern/slab: directmap updateRichard Braun
The main impact of the direct physical mapping on the kmem module is the slab size computation. The page allocator requires the allocation size to be a power-of-two above the page size since it uses the buddy memory allocation algorithm. Custom slab allocation functions are no longer needed since the only user was the kentry area, which has been removed recently. The KMEM_CACHE_NOCPUPOOL flag is also no longer needed since CPU pools, which are allocated from a kmem cache, can now always be allocated out of the direct physical mapping.
2015-08-28device: use general lock for `mach_device'Justus Winter
* device/dev_hdr.h (struct mach_device): Turn lock into a general lock. (device_lock_init): New macro. (device_lock, device_unlock): Adapt accordingly. * device/dev_lookup.c (device_lookup): Use `device_lock_init'. * device/ds_routines.c (device_open): Adapt accordingly.
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.
2013-12-17device: qualify pointers whose dereferenced values are constant with constMarin Ramesa
2013-12-15Declare void argument listsMarin Ramesa
2013-12-08device/dev_lookup.c: remove unused lockMarin Ramesa
* device/dev_lookup.c (dev_port_lock): Remove unused lock.
2013-12-05device/device_init.c: remove forward declarationsMarin Ramesa
* device/dev_lookup.c: Include device/ds_routines.h. * device/device_init.c: Include device/ds_routines.h. Include device/net_io.h. (mach_device_init, dev_lookup_init, net_io_init, device_pager_init, io_done_thread, net_thread): Remove forward declarations. * device/ds_routines.h (mach_device_init, dev_lookup_init, device_pager_init, io_done_thread): Add prototypes. * device/net_io.h (net_io_init, net_thread): Add prototypes.
2013-09-15remove definition of NDEVICESMarin Ramesa
NDEVICES is never used. Judging by the position and the comments it was once used in initialization, but it's not anymore. I think it's safe to remove it. * device/dev_lookup.c (NDEVICES): Remove definition.
2013-09-15remove register qualifiersMarin Ramesa
* device/dev_lookup.c: Remove register qualifiers.
2011-12-17Adjust the kernel to use the slab allocatorRichard Braun
* device/dev_lookup.c: Replace zalloc header, types and function calls with their slab counterparts. * device/dev_pager.c: Likewise. * device/ds_routines.c: Likewise. * device/io_req.h: Likewise. * device/net_io.c: Likewise. * i386/i386/fpu.c: Likewise. * i386/i386/io_perm.c: Likewise. * i386/i386/machine_task.c: Likewise. * i386/i386/pcb.c: Likewise. * i386/i386/task.h: Likewise. * i386/intel/pmap.c: Likewise. * i386/intel/pmap.h: Remove #include <kernel/zalloc.h>. * include/mach_debug/mach_debug.defs (host_zone_info): Replace routine declaration with skip directive. (host_slab_info): New routine declaration. * include/mach_debug/mach_debug_types.defs (zone_name_t) (zone_name_array_t, zone_info_t, zone_info_array_t): Remove types. (cache_info_t, cache_info_array_t): New types. * include/mach_debug/mach_debug_types.h: Replace #include <mach_debug/zone_info.h> with <mach_debug/slab_info.h>. * ipc/ipc_entry.c: Replace zalloc header, types and function calls with their slab counterparts. * ipc/ipc_entry.h: Likewise. * ipc/ipc_init.c: Likewise. * ipc/ipc_marequest.c: Likewise. * ipc/ipc_object.c: Likewise. * ipc/ipc_object.h: Likewise. * ipc/ipc_space.c: Likewise. * ipc/ipc_space.h: Likewise. * ipc/ipc_table.c (kalloc_map): Remove extern declaration. * kern/act.c: Replace zalloc header, types and function calls with their slab counterparts. * kern/kalloc.h: Add #include <vm/vm_types.h>. (MINSIZE): Remove definition. (kalloc_map): Add extern declaration. (kget): Remove prototype. * kern/mach_clock.c: Adjust comment. * kern/processor.c: Replace zalloc header, types and function calls with their slab counterparts. * kern/startup.c: Remove #include <kernel/zalloc.h>. * kern/task.c: Replace zalloc header, types and function calls with their slab counterparts. * kern/thread.c: Likewise. * vm/memory_object_proxy.c: Likewise. * vm/vm_external.c: Likewise. * vm/vm_fault.c: Likewise. * vm/vm_init.c: Likewise. * vm/vm_map.c: Likewise. * vm/vm_object.c: Likewise. * vm/vm_page.h: Remove #include <kernel/zalloc.h>. * vm/vm_pageout.c: Replace zalloc header, types and function calls with their slab counterparts. * vm/vm_resident.c: Likewise. (zdata, zdata_size): Remove declarations. (vm_page_bootstrap): Don't steal memory for the zone system.
2009-06-182007-03-27 Thomas Schwinge <tschwinge@gnu.org>Thomas Schwinge
Unconditionally use the device driver multiplexing. Suggested by Gianluca Guida <glguida@gmail.com>. * i386/i386at/dev_hdr.h: Merge into `device/dev_hdr.h' and remove. * i386/i386at/device_emul.h: Rename to `device/device_emul.h'. Adapt all users. * i386/i386at/i386at_ds_routines.c: Merge into `device/ds_routines.c' and remove. * i386/linux/dev/include/linux_emul.h: Remove file. * Makefrag.am (libkernel_a_SOURCES): Add `device/device_emul.h'. * i386/Makefrag.am (libkernel_a_SOURCES): Remove `i386/i386at/dev_hdr.h', `i386/i386at/device_emul.h' and `i386/i386at/i386at_ds_routines.c'. * i386/linux/Makefrag.am (liblinux_a_SOURCES): Remove `i386/linux/dev/include/linux_emul.h'. * dev/dev_hdr.h: Adapt all users of `i386' as if it were always defined. * device/dev_lookup.c: Likewise. * device/ds_routines.c: Likewise. * device/device_init.c (ds_init): Rename to `mach_device_init'. * device/ds_routines.c (ds_init): Likewise. (ds_trap_init): Rename to `mach_device_trap_init'. (mach_device_trap_init): Make it `static'. * linux/dev/glue/block.c: Don't include <linux_emul.h>, but instead include <device/device_emul.h> and <i386at/disk.h>. * linux/dev/glue/net.c: Don't include <linux_emul.h>, but instead include <device/device_emul.h>. * linux/pcmcia-cs/glue/ds.c: Likewise.
2009-06-182006-12-30 Richard Braun <syn@hurdfr.org>Samuel Thibault
Add alignment support in the zone allocator. * kern/zalloc.c (ALIGN_SIZE_UP): New macro. (zinit): New `align' parameter. (zget_space): Likewise. (zalloc): Updated call to zget_space() with the zone alignment. * kern/zalloc.h (zone): New member `align'. (zinit): Declaration updated as required. * device/dev_lookup.c (dev_lookup_init): Updated call to zinit() with alignment of 0. * device/dev_pager.c (dev_pager_hash_init): Likewise. (device_pager_init): Likewise. * device/ds_routines.c (ds_init): Likewise. (ds_trap_init): Likewise. * device/net_io.c (net_io_init): Likewise. * i386/i386/fpu.c (fpu_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/kalloc.c (kalloc_init): Likewise. * kern/processor.c (pset_sys_init): Likewise. * kern/task.c (task_init): Likewise. * kern/thread.c (thread_init): Likewise. * kern/zalloc.c (zone_bootstrap): Likewise. * vm/vm_external.c (vm_external_module_initialize): Likewise. * vm/vm_fault.c (vm_fault_init): Likewise. * vm/vm_map.c (vm_map_init): Likewise. * vm/vm_object.c (vm_object_bootstrap): Likewise. * vm/vm_resident.c (vm_page_module_init): Likewise.
1997-02-25Initial sourceThomas Bushnell