3da1cf1e88
there is an environment variable which shall initialize the SYSCTL during early boot. This works for all SYSCTL types both statically and dynamically created ones, except for the SYSCTL NODE type and SYSCTLs which belong to VNETs. A new flag, CTLFLAG_NOFETCH, has been added to be used in the case a tunable sysctl has a custom initialisation function allowing the sysctl to still be marked as a tunable. The kernel SYSCTL API is mostly the same, with a few exceptions for some special operations like iterating childrens of a static/extern SYSCTL node. This operation should probably be made into a factored out common macro, hence some device drivers use this. The reason for changing the SYSCTL API was the need for a SYSCTL parent OID pointer and not only the SYSCTL parent OID list pointer in order to quickly generate the sysctl path. The motivation behind this patch is to avoid parameter loading cludges inside the OFED driver subsystem. Instead of adding special code to the OFED driver subsystem to post-load tunables into dynamically created sysctls, we generalize this in the kernel. Other changes: - Corrected a possibly incorrect sysctl name from "hw.cbb.intr_mask" to "hw.pcic.intr_mask". - Removed redundant TUNABLE statements throughout the kernel. - Some minor code rewrites in connection to removing not needed TUNABLE statements. - Added a missing SYSCTL_DECL(). - Wrapped two very long lines. - Avoid malloc()/free() inside sysctl string handling, in case it is called to initialize a sysctl from a tunable, hence malloc()/free() is not ready when sysctls from the sysctl dataset are registered. - Bumped FreeBSD version to indicate SYSCTL API change. MFC after: 2 weeks Sponsored by: Mellanox Technologies
450 lines
15 KiB
C
450 lines
15 KiB
C
/*-
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* Copyright (c) 2009, 2013 The FreeBSD Foundation
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* All rights reserved.
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*
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* This software was developed by Ed Schouten under sponsorship from the
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* FreeBSD Foundation.
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*
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* Portions of this software were developed by Oleksandr Rybalko
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* under sponsorship from the FreeBSD Foundation.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _DEV_VT_VT_H_
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#define _DEV_VT_VT_H_
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#include <sys/param.h>
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#include <sys/_lock.h>
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#include <sys/_mutex.h>
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#include <sys/callout.h>
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#include <sys/condvar.h>
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#include <sys/conf.h>
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#include <sys/consio.h>
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#include <sys/kbio.h>
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#include <sys/mouse.h>
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#include <sys/terminal.h>
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#include <sys/sysctl.h>
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#include "opt_syscons.h"
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#include "opt_splash.h"
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#ifndef VT_MAXWINDOWS
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#ifdef MAXCONS
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#define VT_MAXWINDOWS MAXCONS
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#else
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#define VT_MAXWINDOWS 12
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#endif
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#endif
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#ifndef VT_ALT_TO_ESC_HACK
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#define VT_ALT_TO_ESC_HACK 1
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#endif
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#define VT_CONSWINDOW 0
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#if defined(SC_TWOBUTTON_MOUSE) || defined(VT_TWOBUTTON_MOUSE)
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#define VT_MOUSE_PASTEBUTTON MOUSE_BUTTON3DOWN /* right button */
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#define VT_MOUSE_EXTENDBUTTON MOUSE_BUTTON2DOWN /* not really used */
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#else
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#define VT_MOUSE_PASTEBUTTON MOUSE_BUTTON2DOWN /* middle button */
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#define VT_MOUSE_EXTENDBUTTON MOUSE_BUTTON3DOWN /* right button */
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#endif /* defined(SC_TWOBUTTON_MOUSE) || defined(VT_TWOBUTTON_MOUSE) */
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#define SC_DRIVER_NAME "vt"
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#ifdef VT_DEBUG
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#define DPRINTF(_l, ...) if (vt_debug > (_l)) printf( __VA_ARGS__ )
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#define VT_CONSOLECTL_DEBUG
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#define VT_SYSMOUSE_DEBUG
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#else
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#define DPRINTF(_l, ...) do {} while (0)
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#endif
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#define ISSIGVALID(sig) ((sig) > 0 && (sig) < NSIG)
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#define VT_SYSCTL_INT(_name, _default, _descr) \
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static int vt_##_name = _default; \
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SYSCTL_INT(_kern_vt, OID_AUTO, _name, CTLFLAG_RWTUN, &vt_##_name, _default,\
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_descr);
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struct vt_driver;
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void vt_allocate(struct vt_driver *, void *);
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void vt_resume(void);
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void vt_suspend(void);
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typedef unsigned int vt_axis_t;
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/*
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* List of locks
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* (d) locked by vd_lock
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* (b) locked by vb_lock
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* (G) locked by Giant
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* (u) unlocked, locked by higher levels
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* (c) const until freeing
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* (?) yet to be determined
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*/
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/*
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* Per-device datastructure.
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*/
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struct vt_device {
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struct vt_window *vd_windows[VT_MAXWINDOWS]; /* (c) Windows. */
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struct vt_window *vd_curwindow; /* (d) Current window. */
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struct vt_window *vd_savedwindow;/* (?) Saved for suspend. */
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struct vt_window *vd_markedwin; /* (?) Copy/paste buf owner. */
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const struct vt_driver *vd_driver; /* (c) Graphics driver. */
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void *vd_softc; /* (u) Driver data. */
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uint16_t vd_mx; /* (?) Mouse X. */
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uint16_t vd_my; /* (?) Mouse Y. */
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vt_axis_t vd_mdirtyx; /* (?) Screen width. */
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vt_axis_t vd_mdirtyy; /* (?) Screen height. */
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uint32_t vd_mstate; /* (?) Mouse state. */
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term_pos_t vd_offset; /* (?) Pixel offset. */
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vt_axis_t vd_width; /* (?) Screen width. */
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vt_axis_t vd_height; /* (?) Screen height. */
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struct mtx vd_lock; /* Per-device lock. */
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struct cv vd_winswitch; /* (d) Window switch notify. */
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struct callout vd_timer; /* (d) Display timer. */
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int vd_flags; /* (d) Device flags. */
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#define VDF_TEXTMODE 0x01 /* Do text mode rendering. */
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#define VDF_SPLASH 0x02 /* Splash screen active. */
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#define VDF_ASYNC 0x04 /* vt_timer() running. */
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#define VDF_INVALID 0x08 /* Entire screen should be re-rendered. */
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#define VDF_DEAD 0x10 /* Early probing found nothing. */
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#define VDF_INITIALIZED 0x20 /* vtterm_cnprobe already done. */
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#define VDF_MOUSECURSOR 0x40 /* Mouse cursor visible. */
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#define VDF_QUIET_BELL 0x80 /* Disable bell. */
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int vd_keyboard; /* (G) Keyboard index. */
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unsigned int vd_kbstate; /* (?) Device unit. */
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unsigned int vd_unit; /* (c) Device unit. */
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};
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/*
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* Per-window terminal screen buffer.
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*
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* Because redrawing is performed asynchronously, the buffer keeps track
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* of a rectangle that needs to be redrawn (vb_dirtyrect). Because this
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* approach seemed to cause suboptimal performance (when the top left
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* and the bottom right of the screen are modified), it also uses a set
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* of bitmasks to keep track of the rows and columns (mod 64) that have
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* been modified.
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*/
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struct vt_bufmask {
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uint64_t vbm_row, vbm_col;
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#define VBM_DIRTY UINT64_MAX
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};
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struct vt_buf {
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struct mtx vb_lock; /* Buffer lock. */
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term_pos_t vb_scr_size; /* (b) Screen dimensions. */
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int vb_flags; /* (b) Flags. */
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#define VBF_CURSOR 0x1 /* Cursor visible. */
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#define VBF_STATIC 0x2 /* Buffer is statically allocated. */
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#define VBF_MTX_INIT 0x4 /* Mutex initialized. */
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#define VBF_SCROLL 0x8 /* scroll locked mode. */
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#define VBF_HISTORY_FULL 0x10 /* All rows filled. */
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int vb_history_size;
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#define VBF_DEFAULT_HISTORY_SIZE 500
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int vb_roffset; /* (b) History rows offset. */
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int vb_curroffset; /* (b) Saved rows offset. */
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term_pos_t vb_cursor; /* (u) Cursor position. */
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term_pos_t vb_mark_start; /* (b) Copy region start. */
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term_pos_t vb_mark_end; /* (b) Copy region end. */
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int vb_mark_last; /* Last mouse event. */
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term_rect_t vb_dirtyrect; /* (b) Dirty rectangle. */
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struct vt_bufmask vb_dirtymask; /* (b) Dirty bitmasks. */
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term_char_t *vb_buffer; /* (u) Data buffer. */
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term_char_t **vb_rows; /* (u) Array of rows */
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};
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void vtbuf_copy(struct vt_buf *, const term_rect_t *, const term_pos_t *);
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void vtbuf_fill_locked(struct vt_buf *, const term_rect_t *, term_char_t);
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void vtbuf_init_early(struct vt_buf *);
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void vtbuf_init(struct vt_buf *, const term_pos_t *);
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void vtbuf_grow(struct vt_buf *, const term_pos_t *, int);
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void vtbuf_putchar(struct vt_buf *, const term_pos_t *, term_char_t);
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void vtbuf_cursor_position(struct vt_buf *, const term_pos_t *);
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void vtbuf_scroll_mode(struct vt_buf *vb, int yes);
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void vtbuf_undirty(struct vt_buf *, term_rect_t *, struct vt_bufmask *);
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void vtbuf_sethistory_size(struct vt_buf *, int);
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int vtbuf_iscursor(struct vt_buf *vb, int row, int col);
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void vtbuf_cursor_visibility(struct vt_buf *, int);
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#ifndef SC_NO_CUTPASTE
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void vtbuf_mouse_cursor_position(struct vt_buf *vb, int col, int row);
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int vtbuf_set_mark(struct vt_buf *vb, int type, int col, int row);
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int vtbuf_get_marked_len(struct vt_buf *vb);
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void vtbuf_extract_marked(struct vt_buf *vb, term_char_t *buf, int sz);
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#endif
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#define VTB_MARK_NONE 0
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#define VTB_MARK_END 1
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#define VTB_MARK_START 2
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#define VTB_MARK_WORD 3
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#define VTB_MARK_ROW 4
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#define VTB_MARK_EXTEND 5
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#define VTB_MARK_MOVE 6
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#define VTBUF_SLCK_ENABLE(vb) vtbuf_scroll_mode((vb), 1)
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#define VTBUF_SLCK_DISABLE(vb) vtbuf_scroll_mode((vb), 0)
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#define VTBUF_MAX_HEIGHT(vb) \
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((vb)->vb_history_size)
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#define VTBUF_GET_ROW(vb, r) \
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((vb)->vb_rows[((vb)->vb_roffset + (r)) % VTBUF_MAX_HEIGHT(vb)])
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#define VTBUF_GET_FIELD(vb, r, c) \
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((vb)->vb_rows[((vb)->vb_roffset + (r)) % VTBUF_MAX_HEIGHT(vb)][(c)])
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#define VTBUF_FIELD(vb, r, c) \
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((vb)->vb_rows[((vb)->vb_curroffset + (r)) % VTBUF_MAX_HEIGHT(vb)][(c)])
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#define VTBUF_ISCURSOR(vb, r, c) \
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vtbuf_iscursor((vb), (r), (c))
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#define VTBUF_DIRTYROW(mask, row) \
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((mask)->vbm_row & ((uint64_t)1 << ((row) % 64)))
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#define VTBUF_DIRTYCOL(mask, col) \
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((mask)->vbm_col & ((uint64_t)1 << ((col) % 64)))
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#define VTBUF_SPACE_CHAR (' ' | TC_WHITE << 26 | TC_BLACK << 29)
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#define VHS_SET 0
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#define VHS_CUR 1
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#define VHS_END 2
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int vthistory_seek(struct vt_buf *, int offset, int whence);
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void vthistory_addlines(struct vt_buf *vb, int offset);
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void vthistory_getpos(const struct vt_buf *, unsigned int *offset);
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/*
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* Per-window datastructure.
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*/
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struct vt_window {
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struct vt_device *vw_device; /* (c) Device. */
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struct terminal *vw_terminal; /* (c) Terminal. */
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struct vt_buf vw_buf; /* (u) Screen buffer. */
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struct vt_font *vw_font; /* (d) Graphical font. */
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unsigned int vw_number; /* (c) Window number. */
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int vw_kbdmode; /* (?) Keyboard mode. */
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char *vw_kbdsq; /* Escape sequence queue*/
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unsigned int vw_flags; /* (d) Per-window flags. */
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int vw_mouse_level;/* Mouse op mode. */
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#define VWF_BUSY 0x1 /* Busy reconfiguring device. */
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#define VWF_OPENED 0x2 /* TTY in use. */
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#define VWF_SCROLL 0x4 /* Keys influence scrollback. */
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#define VWF_CONSOLE 0x8 /* Kernel message console window. */
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#define VWF_VTYLOCK 0x10 /* Prevent window switch. */
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#define VWF_MOUSE_HIDE 0x20 /* Disable mouse events processing. */
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#define VWF_READY 0x40 /* Window fully initialized. */
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#define VWF_SWWAIT_REL 0x10000 /* Program wait for VT acquire is done. */
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#define VWF_SWWAIT_ACQ 0x20000 /* Program wait for VT release is done. */
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pid_t vw_pid; /* Terminal holding process */
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struct proc *vw_proc;
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struct vt_mode vw_smode; /* switch mode */
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struct callout vw_proc_dead_timer;
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struct vt_window *vw_switch_to;
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};
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#define VT_AUTO 0 /* switching is automatic */
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#define VT_PROCESS 1 /* switching controlled by prog */
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#define VT_KERNEL 255 /* switching controlled in kernel */
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#define IS_VT_PROC_MODE(vw) ((vw)->vw_smode.mode == VT_PROCESS)
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/*
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* Per-device driver routines.
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*
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* vd_bitbltchr is used when the driver operates in graphics mode, while
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* vd_putchar is used when the driver operates in text mode
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* (VDF_TEXTMODE).
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*/
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typedef int vd_init_t(struct vt_device *vd);
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typedef int vd_probe_t(struct vt_device *vd);
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typedef void vd_postswitch_t(struct vt_device *vd);
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typedef void vd_blank_t(struct vt_device *vd, term_color_t color);
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typedef void vd_bitbltchr_t(struct vt_device *vd, const uint8_t *src,
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const uint8_t *mask, int bpl, vt_axis_t top, vt_axis_t left,
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unsigned int width, unsigned int height, term_color_t fg, term_color_t bg);
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typedef void vd_maskbitbltchr_t(struct vt_device *vd, const uint8_t *src,
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const uint8_t *mask, int bpl, vt_axis_t top, vt_axis_t left,
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unsigned int width, unsigned int height, term_color_t fg, term_color_t bg);
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typedef void vd_putchar_t(struct vt_device *vd, term_char_t,
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vt_axis_t top, vt_axis_t left, term_color_t fg, term_color_t bg);
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typedef int vd_fb_ioctl_t(struct vt_device *, u_long, caddr_t, struct thread *);
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typedef int vd_fb_mmap_t(struct vt_device *, vm_ooffset_t, vm_paddr_t *, int,
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vm_memattr_t *);
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typedef void vd_drawrect_t(struct vt_device *, int, int, int, int, int,
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term_color_t);
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typedef void vd_setpixel_t(struct vt_device *, int, int, term_color_t);
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struct vt_driver {
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char vd_name[16];
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/* Console attachment. */
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vd_probe_t *vd_probe;
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vd_init_t *vd_init;
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/* Drawing. */
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vd_blank_t *vd_blank;
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vd_bitbltchr_t *vd_bitbltchr;
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vd_maskbitbltchr_t *vd_maskbitbltchr;
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vd_drawrect_t *vd_drawrect;
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vd_setpixel_t *vd_setpixel;
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/* Framebuffer ioctls, if present. */
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vd_fb_ioctl_t *vd_fb_ioctl;
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/* Framebuffer mmap, if present. */
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vd_fb_mmap_t *vd_fb_mmap;
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/* Text mode operation. */
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vd_putchar_t *vd_putchar;
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/* Update display setting on vt switch. */
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vd_postswitch_t *vd_postswitch;
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/* Priority to know which one can override */
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int vd_priority;
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#define VD_PRIORITY_DUMB 10
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#define VD_PRIORITY_GENERIC 100
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#define VD_PRIORITY_SPECIFIC 1000
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};
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/*
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* Console device madness.
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*
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* Utility macro to make early vt(4) instances work.
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*/
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extern const struct terminal_class vt_termclass;
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void vt_upgrade(struct vt_device *vd);
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#define PIXEL_WIDTH(w) ((w) / 8)
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#define PIXEL_HEIGHT(h) ((h) / 16)
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#ifndef VT_FB_DEFAULT_WIDTH
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#define VT_FB_DEFAULT_WIDTH 2048
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#endif
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#ifndef VT_FB_DEFAULT_HEIGHT
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#define VT_FB_DEFAULT_HEIGHT 1200
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#endif
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#define VT_CONSDEV_DECLARE(driver, width, height, softc) \
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static struct terminal driver ## _consterm; \
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static struct vt_window driver ## _conswindow; \
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static struct vt_device driver ## _consdev = { \
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.vd_driver = &driver, \
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.vd_softc = (softc), \
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.vd_flags = VDF_INVALID, \
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.vd_windows = { [VT_CONSWINDOW] = &driver ## _conswindow, }, \
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.vd_curwindow = &driver ## _conswindow, \
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.vd_markedwin = NULL, \
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.vd_kbstate = 0, \
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}; \
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static term_char_t driver ## _constextbuf[(width) * \
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(VBF_DEFAULT_HISTORY_SIZE)]; \
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static term_char_t *driver ## _constextbufrows[ \
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VBF_DEFAULT_HISTORY_SIZE]; \
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static struct vt_window driver ## _conswindow = { \
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.vw_number = VT_CONSWINDOW, \
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.vw_flags = VWF_CONSOLE, \
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.vw_buf = { \
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.vb_buffer = driver ## _constextbuf, \
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.vb_rows = driver ## _constextbufrows, \
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.vb_history_size = VBF_DEFAULT_HISTORY_SIZE, \
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.vb_curroffset = 0, \
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.vb_roffset = 0, \
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.vb_flags = VBF_STATIC, \
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.vb_mark_start = { \
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.tp_row = 0, \
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.tp_col = 0, \
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}, \
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.vb_mark_end = { \
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.tp_row = 0, \
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.tp_col = 0, \
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}, \
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.vb_scr_size = { \
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.tp_row = height, \
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.tp_col = width, \
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}, \
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}, \
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.vw_device = &driver ## _consdev, \
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.vw_terminal = &driver ## _consterm, \
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.vw_kbdmode = K_XLATE, \
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}; \
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TERMINAL_DECLARE_EARLY(driver ## _consterm, vt_termclass, \
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&driver ## _conswindow); \
|
|
SYSINIT(vt_early_cons, SI_SUB_INT_CONFIG_HOOKS, SI_ORDER_ANY, \
|
|
vt_upgrade, &driver ## _consdev)
|
|
|
|
/* name argument is not used yet. */
|
|
#define VT_DRIVER_DECLARE(name, drv) DATA_SET(vt_drv_set, drv)
|
|
|
|
/*
|
|
* Fonts.
|
|
*
|
|
* Remapping tables are used to map Unicode points to glyphs. They need
|
|
* to be sorted, because vtfont_lookup() performs a binary search. Each
|
|
* font has two remapping tables, for normal and bold. When a character
|
|
* is not present in bold, it uses a normal glyph. When no glyph is
|
|
* available, it uses glyph 0, which is normally equal to U+FFFD.
|
|
*/
|
|
|
|
struct vt_font_map {
|
|
uint32_t vfm_src;
|
|
uint16_t vfm_dst;
|
|
uint16_t vfm_len;
|
|
};
|
|
|
|
struct vt_font {
|
|
struct vt_font_map *vf_map[VFNT_MAPS];
|
|
uint8_t *vf_bytes;
|
|
unsigned int vf_height, vf_width;
|
|
unsigned int vf_map_count[VFNT_MAPS];
|
|
unsigned int vf_refcount;
|
|
};
|
|
|
|
#ifndef SC_NO_CUTPASTE
|
|
struct mouse_cursor {
|
|
uint8_t map[64 * 64 / 8];
|
|
uint8_t mask[64 * 64 / 8];
|
|
uint8_t w;
|
|
uint8_t h;
|
|
};
|
|
#endif
|
|
|
|
const uint8_t *vtfont_lookup(const struct vt_font *vf, term_char_t c);
|
|
struct vt_font *vtfont_ref(struct vt_font *vf);
|
|
void vtfont_unref(struct vt_font *vf);
|
|
int vtfont_load(vfnt_t *f, struct vt_font **ret);
|
|
|
|
/* Sysmouse. */
|
|
void sysmouse_process_event(mouse_info_t *mi);
|
|
#ifndef SC_NO_CUTPASTE
|
|
void vt_mouse_event(int type, int x, int y, int event, int cnt, int mlevel);
|
|
void vt_mouse_state(int show);
|
|
#endif
|
|
#define VT_MOUSE_SHOW 1
|
|
#define VT_MOUSE_HIDE 0
|
|
|
|
#endif /* !_DEV_VT_VT_H_ */
|
|
|