| Age | Commit message (Collapse) | Author |
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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.
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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.
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* device/dev_lookup.c (dev_port_lock): Remove unused lock.
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* 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.
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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.
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* device/dev_lookup.c: Remove register qualifiers.
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* 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.
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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.
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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.
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