Localify, add a comment and merge some others.
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maxv
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@ -1,4 +1,4 @@
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/* $NetBSD: gdt.c,v 1.34 2016/08/21 10:42:33 maxv Exp $ */
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/* $NetBSD: gdt.c,v 1.35 2017/02/08 09:39:32 maxv Exp $ */
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/*-
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* Copyright (c) 1996, 1997, 2009 The NetBSD Foundation, Inc.
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@ -37,7 +37,7 @@
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: gdt.c,v 1.34 2016/08/21 10:42:33 maxv Exp $");
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__KERNEL_RCSID(0, "$NetBSD: gdt.c,v 1.35 2017/02/08 09:39:32 maxv Exp $");
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#include "opt_multiprocessor.h"
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#include "opt_xen.h"
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@ -63,6 +63,7 @@ int gdt_dynavail;
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int gdt_next; /* next available slot for sweeping */
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int gdt_free; /* next free slot; terminated with GNULL_SEL */
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static void set_sys_gdt(int, void *, size_t, int, int, int);
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void gdt_init(void);
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void
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@ -84,7 +85,10 @@ update_descriptor(void *tp, void *ep)
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#endif
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}
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void
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/*
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* Called on a newly-allocated GDT slot, so no race between CPUs.
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*/
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static void
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set_sys_gdt(int slot, void *base, size_t limit, int type, int dpl, int gran)
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{
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union {
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@ -1,4 +1,4 @@
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/* $NetBSD: gdt.h,v 1.8 2016/08/20 18:31:06 maxv Exp $ */
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/* $NetBSD: gdt.h,v 1.9 2017/02/08 09:39:32 maxv Exp $ */
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/*-
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* Copyright (c) 1996, 1997 The NetBSD Foundation, Inc.
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@ -44,8 +44,6 @@ void tss_free(int);
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int ldt_alloc(void *, size_t);
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void ldt_free(int);
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void set_sys_gdt(int, void *, size_t, int, int, int);
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#endif
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#define MINGDTSIZ PAGE_SIZE
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@ -1,4 +1,4 @@
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/* $NetBSD: gdt.c,v 1.57 2017/02/05 10:42:21 maxv Exp $ */
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/* $NetBSD: gdt.c,v 1.58 2017/02/08 09:39:32 maxv Exp $ */
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/*-
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* Copyright (c) 1996, 1997, 2009 The NetBSD Foundation, Inc.
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@ -30,7 +30,7 @@
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: gdt.c,v 1.57 2017/02/05 10:42:21 maxv Exp $");
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__KERNEL_RCSID(0, "$NetBSD: gdt.c,v 1.58 2017/02/08 09:39:32 maxv Exp $");
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#include "opt_multiprocessor.h"
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#include "opt_xen.h"
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@ -60,6 +60,7 @@ int gdt_free[2]; /* next free slot; terminated with GNULL_SEL */
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static int ldt_count; /* number of LDTs */
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static int ldt_max = 1000;/* max number of LDTs */
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static void setgdt(int, const void *, size_t, int, int, int, int);
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void gdt_init(void);
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static void gdt_grow(int);
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static int gdt_get_slot1(int);
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@ -81,7 +82,10 @@ update_descriptor(union descriptor *table, union descriptor *entry)
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#endif
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}
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void
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/*
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* Called on a newly-allocated GDT slot, so no race between CPUs.
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*/
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static void
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setgdt(int sel, const void *base, size_t limit, int type, int dpl, int def32,
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int gran)
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{
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@ -104,7 +108,8 @@ setgdt(int sel, const void *base, size_t limit, int type, int dpl, int def32,
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}
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/*
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* Initialize the GDT subsystem. Called from autoconf().
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* Initialize the GDT. We already have a gdtstore, which was temporarily used
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* by the bootstrap code. Now, we allocate a new gdtstore, and put it in cpu0.
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*/
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void
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gdt_init(void)
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@ -152,7 +157,8 @@ gdt_init(void)
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}
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/*
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* Allocate shadow GDT for a slave CPU.
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* Allocate shadow GDT for a secondary CPU. It contains the same values as the
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* GDT present in cpu0 (gdtstore).
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*/
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void
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gdt_alloc_cpu(struct cpu_info *ci)
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@ -180,10 +186,9 @@ gdt_alloc_cpu(struct cpu_info *ci)
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sizeof(struct cpu_info) - 1, SDT_MEMRWA, SEL_KPL, 1, 0);
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}
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/*
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* Load appropriate gdt descriptor; we better be running on *ci
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* (for the most part, this is how a CPU knows who it is).
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* Load appropriate GDT descriptor into the currently running CPU, which must
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* be ci.
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*/
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void
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gdt_init_cpu(struct cpu_info *ci)
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@ -227,7 +232,6 @@ gdt_init_cpu(struct cpu_info *ci)
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}
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#if defined(MULTIPROCESSOR) && !defined(XEN)
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void
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gdt_reload_cpu(struct cpu_info *ci)
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{
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@ -240,9 +244,10 @@ gdt_reload_cpu(struct cpu_info *ci)
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}
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#endif
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/*
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* Grow the GDT.
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* Grow the GDT. The GDT is present on each CPU, so we need to iterate over all
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* of them. We already have the virtual memory, we only need to grow the
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* physical memory.
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*/
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void
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gdt_grow(int which)
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@ -1,4 +1,4 @@
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/* $NetBSD: segments.h,v 1.58 2017/02/05 10:42:21 maxv Exp $ */
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/* $NetBSD: segments.h,v 1.59 2017/02/08 09:39:32 maxv Exp $ */
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/*-
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* Copyright (c) 1990 The Regents of the University of California.
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@ -197,7 +197,6 @@ void setgate(struct gate_descriptor *, void *, int, int, int, int);
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void setregion(struct region_descriptor *, void *, size_t);
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void setsegment(struct segment_descriptor *, const void *, size_t, int, int,
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int, int);
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void setgdt(int, const void *, size_t, int, int, int, int);
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void unsetgate(struct gate_descriptor *);
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void cpu_init_idt(void);
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void update_descriptor(union descriptor *, union descriptor *);
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