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freebsd-dev/sys/dev/fb/fbreg.h
Konstantin Belousov 9a52756044 i386: Merge PAE and non-PAE pmaps into same kernel. 
Effectively all i386 kernels now have two pmaps compiled in: one
managing PAE pagetables, and another non-PAE. The implementation is
selected at cold time depending on the CPU features. The vm_paddr_t is
always 64bit now. As result, nx bit can be used on all capable CPUs.

Option PAE only affects the bus_addr_t: it is still 32bit for non-PAE
configs, for drivers compatibility. Kernel layout, esp. max kernel
address, low memory PDEs and max user address (same as trampoline
start) are now same for PAE and for non-PAE regardless of the type of
page tables used.

Non-PAE kernel (when using PAE pagetables) can handle physical memory
up to 24G now, larger memory requires re-tuning the KVA consumers and
instead the code caps the maximum at 24G. Unfortunately, a lot of
drivers do not use busdma(9) properly so by default even 4G barrier is
not easy. There are two tunables added: hw.above4g_allow and
hw.above24g_allow, the first one is kept enabled for now to evaluate
the status on HEAD, second is only for dev use.

i386 now creates three freelists if there is any memory above 4G, to
allow proper bounce pages allocation. Also, VM_KMEM_SIZE_SCALE changed
from 3 to 1.

The PAE_TABLES kernel config option is retired.

In collaboarion with: pho
Discussed with:	emaste
Reviewed by:	markj
MFC after:	2 weeks
Sponsored by:	The FreeBSD Foundation
Differential revision:	https://reviews.freebsd.org/D18894
2019-01-30 02:07:13 +00:00

346 lines
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/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* Copyright (c) 1999 Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer as
* the first lines of this file unmodified.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* $FreeBSD$
*/
#ifndef _DEV_FB_FBREG_H_
#define _DEV_FB_FBREG_H_
#ifdef _KERNEL
#define V_MAX_ADAPTERS 8 /* XXX */
/* some macros */
#if defined(__amd64__) || defined(__i386__)
static __inline void
copyw(uint16_t *src, uint16_t *dst, size_t size)
{
size >>= 1;
while (size--)
*dst++ = *src++;
}
#define bcopy_io(s, d, c) copyw((void*)(s), (void*)(d), (c))
#define bcopy_toio(s, d, c) copyw((void*)(s), (void*)(d), (c))
#define bcopy_fromio(s, d, c) copyw((void*)(s), (void*)(d), (c))
#define bzero_io(d, c) bzero((void *)(d), (c))
#define fill_io(p, d, c) fill((p), (void *)(d), (c))
#define fillw_io(p, d, c) fillw((p), (void *)(d), (c))
#elif defined(__sparc64__)
static __inline void
fillw(int val, uint16_t *buf, size_t size)
{
while (size--)
*buf++ = val;
}
#elif defined(__powerpc__)
#define bcopy_io(s, d, c) ofwfb_bcopy((void *)(s), (void *)(d), (c))
#define bcopy_toio(s, d, c) ofwfb_bcopy((void *)(s), (void *)(d), (c))
#define bcopy_fromio(s, d, c) ofwfb_bcopy((void *)(s), (void *)(d), (c))
#define bzero_io(d, c) ofwfb_bzero((void *)(d), (c))
#define fillw(p, d, c) ofwfb_fillw((p), (void *)(d), (c))
#define fillw_io(p, d, c) ofwfb_fillw((p), (void *)(d), (c))
#define readw(a) ofwfb_readw((u_int16_t *)(a))
#define writew(a, v) ofwfb_writew((u_int16_t *)(a), (v))
void ofwfb_bcopy(const void *s, void *d, size_t c);
void ofwfb_bzero(void *d, size_t c);
void ofwfb_fillw(int pat, void *base, size_t cnt);
u_int16_t ofwfb_readw(u_int16_t *addr);
void ofwfb_writew(u_int16_t *addr, u_int16_t val);
#elif defined(__mips__) || defined(__arm__)
/*
* Use amd64/i386-like settings under the assumption that MIPS-based display
* drivers will have to add a level of indirection between a syscons-managed
* frame buffer and the actual video hardware. We are forced to do this
* because syscons doesn't carry around required busspace handles and tags to
* use here. This is only really a problem for true VGA devices hooked up to
* MIPS, as others will be performing a translation anyway.
*/
#define bcopy_io(s, d, c) memcpy((void *)(d), (void *)(s), (c))
#define bcopy_toio(s, d, c) memcpy((void *)(d), (void *)(s), (c))
#define bcopy_fromio(s, d, c) memcpy((void *)(d), (void *)(s), (c))
#define bzero_io(d, c) memset((void *)(d), 0, (c))
#define fill_io(p, d, c) memset((void *)(d), (p), (c))
static __inline void
fillw(int val, uint16_t *buf, size_t size)
{
while (size--)
*buf++ = val;
}
#define fillw_io(p, d, c) fillw((p), (void *)(d), (c))
#if defined(__arm__)
#define readw(a) (*(uint16_t*)(a))
#define writew(a, v) (*(uint16_t*)(a) = (v))
#endif
#else /* !__i386__ && !__amd64__ && !__sparc64__ && !__powerpc__ */
#define bcopy_io(s, d, c) memcpy_io((d), (s), (c))
#define bcopy_toio(s, d, c) memcpy_toio((d), (void *)(s), (c))
#define bcopy_fromio(s, d, c) memcpy_fromio((void *)(d), (s), (c))
#define bzero_io(d, c) memset_io((d), 0, (c))
#define fill_io(p, d, c) memset_io((d), (p), (c))
#define fillw(p, d, c) memsetw((d), (p), (c))
#define fillw_io(p, d, c) memsetw_io((d), (p), (c))
#endif /* !__i386__ */
/* video function table */
typedef int vi_probe_t(int unit, video_adapter_t **adpp, void *arg, int flags);
typedef int vi_init_t(int unit, video_adapter_t *adp, int flags);
typedef int vi_get_info_t(video_adapter_t *adp, int mode, video_info_t *info);
typedef int vi_query_mode_t(video_adapter_t *adp, video_info_t *info);
typedef int vi_set_mode_t(video_adapter_t *adp, int mode);
typedef int vi_save_font_t(video_adapter_t *adp, int page, int size, int width,
u_char *data, int c, int count);
typedef int vi_load_font_t(video_adapter_t *adp, int page, int size, int width,
u_char *data, int c, int count);
typedef int vi_show_font_t(video_adapter_t *adp, int page);
typedef int vi_save_palette_t(video_adapter_t *adp, u_char *palette);
typedef int vi_load_palette_t(video_adapter_t *adp, u_char *palette);
typedef int vi_set_border_t(video_adapter_t *adp, int border);
typedef int vi_save_state_t(video_adapter_t *adp, void *p, size_t size);
typedef int vi_load_state_t(video_adapter_t *adp, void *p);
typedef int vi_set_win_org_t(video_adapter_t *adp, off_t offset);
typedef int vi_read_hw_cursor_t(video_adapter_t *adp, int *col, int *row);
typedef int vi_set_hw_cursor_t(video_adapter_t *adp, int col, int row);
typedef int vi_set_hw_cursor_shape_t(video_adapter_t *adp, int base,
int height, int celsize, int blink);
typedef int vi_blank_display_t(video_adapter_t *adp, int mode);
/* defined in sys/fbio.h
#define V_DISPLAY_ON 0
#define V_DISPLAY_BLANK 1
#define V_DISPLAY_STAND_BY 2
#define V_DISPLAY_SUSPEND 3
*/
typedef int vi_mmap_t(video_adapter_t *adp, vm_ooffset_t offset,
vm_paddr_t *paddr, int prot, vm_memattr_t *memattr);
typedef int vi_ioctl_t(video_adapter_t *adp, u_long cmd, caddr_t data);
typedef int vi_clear_t(video_adapter_t *adp);
typedef int vi_fill_rect_t(video_adapter_t *adp, int val, int x, int y,
int cx, int cy);
typedef int vi_bitblt_t(video_adapter_t *adp, ...);
typedef int vi_diag_t(video_adapter_t *adp, int level);
typedef int vi_save_cursor_palette_t(video_adapter_t *adp, u_char *palette);
typedef int vi_load_cursor_palette_t(video_adapter_t *adp, u_char *palette);
typedef int vi_copy_t(video_adapter_t *adp, vm_offset_t src, vm_offset_t dst,
int n);
typedef int vi_putp_t(video_adapter_t *adp, vm_offset_t off, u_int32_t p,
u_int32_t a, int size, int bpp, int bit_ltor,
int byte_ltor);
typedef int vi_putc_t(video_adapter_t *adp, vm_offset_t off, u_int8_t c,
u_int8_t a);
typedef int vi_puts_t(video_adapter_t *adp, vm_offset_t off, u_int16_t *s,
int len);
typedef int vi_putm_t(video_adapter_t *adp, int x, int y, u_int8_t *pixel_image,
u_int32_t pixel_mask, int size, int width);
typedef struct video_switch {
vi_probe_t *probe;
vi_init_t *init;
vi_get_info_t *get_info;
vi_query_mode_t *query_mode;
vi_set_mode_t *set_mode;
vi_save_font_t *save_font;
vi_load_font_t *load_font;
vi_show_font_t *show_font;
vi_save_palette_t *save_palette;
vi_load_palette_t *load_palette;
vi_set_border_t *set_border;
vi_save_state_t *save_state;
vi_load_state_t *load_state;
vi_set_win_org_t *set_win_org;
vi_read_hw_cursor_t *read_hw_cursor;
vi_set_hw_cursor_t *set_hw_cursor;
vi_set_hw_cursor_shape_t *set_hw_cursor_shape;
vi_blank_display_t *blank_display;
vi_mmap_t *mmap;
vi_ioctl_t *ioctl;
vi_clear_t *clear;
vi_fill_rect_t *fill_rect;
vi_bitblt_t *bitblt;
int (*reserved1)(void);
int (*reserved2)(void);
vi_diag_t *diag;
vi_save_cursor_palette_t *save_cursor_palette;
vi_load_cursor_palette_t *load_cursor_palette;
vi_copy_t *copy;
vi_putp_t *putp;
vi_putc_t *putc;
vi_puts_t *puts;
vi_putm_t *putm;
} video_switch_t;
#define vidd_probe(unit, adpp, arg, flags) \
(*vidsw[(adp)->va_index]->probe)((unit), (adpp), (arg), (flags))
#define vidd_init(unit, adp, flags) \
(*vidsw[(adp)->va_index]->init)((unit), (adp), (flags))
#define vidd_get_info(adp, mode, info) \
(*vidsw[(adp)->va_index]->get_info)((adp), (mode), (info))
#define vidd_query_mode(adp, mode) \
(*vidsw[(adp)->va_index]->query_mode)((adp), (mode))
#define vidd_set_mode(adp, mode) \
(*vidsw[(adp)->va_index]->set_mode)((adp), (mode))
#define vidd_save_font(adp, page, size, width, data, c, count) \
(*vidsw[(adp)->va_index]->save_font)((adp), (page), (size), \
(width), (data), (c), (count))
#define vidd_load_font(adp, page, size, width, data, c, count) \
(*vidsw[(adp)->va_index]->load_font)((adp), (page), (size), \
(width), (data), (c), (count))
#define vidd_show_font(adp, page) \
(*vidsw[(adp)->va_index]->show_font)((adp), (page))
#define vidd_save_palette(adp, pallete) \
(*vidsw[(adp)->va_index]->save_palette)((adp), (pallete))
#define vidd_load_palette(adp, pallete) \
(*vidsw[(adp)->va_index]->load_palette)((adp), (pallete))
#define vidd_set_border(adp, border) \
(*vidsw[(adp)->va_index]->set_border)((adp), (border))
#define vidd_save_state(adp, p, size) \
(*vidsw[(adp)->va_index]->save_state)((adp), (p), (size))
#define vidd_load_state(adp, p) \
(*vidsw[(adp)->va_index]->load_state)((adp), (p))
#define vidd_set_win_org(adp, offset) \
(*vidsw[(adp)->va_index]->set_win_org)((adp), (offset))
#define vidd_read_hw_cursor(adp, col, row) \
(*vidsw[(adp)->va_index]->read_hw_cursor)((adp), (col), (row))
#define vidd_set_hw_cursor(adp, col, row) \
(*vidsw[(adp)->va_index]->set_hw_cursor)((adp), (col), (row))
#define vidd_set_hw_cursor_shape(adp, base, height, celsize, blink) \
(*vidsw[(adp)->va_index]->set_hw_cursor_shape)((adp), (base), \
(height), (celsize), (blink))
#define vidd_blank_display(adp, mode) \
(*vidsw[(adp)->va_index]->blank_display)((adp), (mode))
#define vidd_mmap(adp, offset, paddr, prot, memattr) \
(*vidsw[(adp)->va_index]->mmap)((adp), (offset), (paddr), \
(prot), (memattr))
#define vidd_ioctl(adp, cmd, data) \
(*vidsw[(adp)->va_index]->ioctl)((adp), (cmd), (data))
#define vidd_clear(adp) \
(*vidsw[(adp)->va_index]->clear)((adp))
#define vidd_fill_rect(adp, val, x, y, cx, cy) \
(*vidsw[(adp)->va_index]->fill_rect)((adp), (val), (x), (y), \
(cx), (cy))
#define vidd_bitblt(adp, ...) \
(*vidsw[(adp)->va_index]->bitblt)(adp, __VA_ARGS__)
#define vidd_diag(adp, level) \
(*vidsw[(adp)->va_index]->diag)((adp), (level))
#define vidd_save_cursor_palette(adp, palette) \
(*vidsw[(adp)->va_index]->save_cursor_palette)((adp), (palette))
#define vidd_load_cursor_palette(adp, palette) \
(*vidsw[(adp)->va_index]->load_cursor_palette)((adp), (palette))
#define vidd_copy(adp, src, dst, n) \
(*vidsw[(adp)->va_index]->copy)((adp), (src), (dst), (n))
#define vidd_putp(adp, offset, p, a, size, bpp, bit_ltor1, byte_ltor2) \
(*vidsw[(adp)->va_index]->putp)((adp), (offset), (p), (a), \
(size), (bpp), (bit_ltor1), (bit_ltor2))
#define vidd_putc(adp, offset, c, a) \
(*vidsw[(adp)->va_index]->putc)((adp), (offset), (c), (a))
#define vidd_puts(adp, offset, s, len) \
(*vidsw[(adp)->va_index]->puts)((adp), (offset), (s), (len))
#define vidd_putm(adp, x, y, pixel_image, pixel_mask, size, width) \
(*vidsw[(adp)->va_index]->putm)((adp), (x), (y), (pixel_image), \
(pixel_mask), (size), (width))
/* video driver */
typedef struct video_driver {
char *name;
video_switch_t *vidsw;
int (*configure)(int); /* backdoor for the console driver */
} video_driver_t;
#define VIDEO_DRIVER(name, sw, config) \
static struct video_driver name##_driver = { \
#name, &sw, config \
}; \
DATA_SET(videodriver_set, name##_driver);
/* global variables */
extern struct video_switch **vidsw;
/* functions for the video card driver */
int vid_register(video_adapter_t *adp);
int vid_unregister(video_adapter_t *adp);
video_switch_t *vid_get_switch(char *name);
void vid_init_struct(video_adapter_t *adp, char *name, int type,
int unit);
/* functions for the video card client */
int vid_allocate(char *driver, int unit, void *id);
int vid_release(video_adapter_t *adp, void *id);
int vid_find_adapter(char *driver, int unit);
video_adapter_t *vid_get_adapter(int index);
/* a backdoor for the console driver to tickle the video driver XXX */
int vid_configure(int flags);
#define VIO_PROBE_ONLY (1 << 0) /* probe only, don't initialize */
#ifdef FB_INSTALL_CDEV
/* virtual frame buffer driver functions */
int fb_attach(int unit, video_adapter_t *adp,
struct cdevsw *cdevsw);
int fb_detach(int unit, video_adapter_t *adp,
struct cdevsw *cdevsw);
/* generic frame buffer cdev driver functions */
typedef struct genfb_softc {
int gfb_flags; /* flag/status bits */
#define FB_OPEN (1 << 0)
} genfb_softc_t;
int genfbopen(genfb_softc_t *sc, video_adapter_t *adp,
int flag, int mode, struct thread *td);
int genfbclose(genfb_softc_t *sc, video_adapter_t *adp,
int flag, int mode, struct thread *td);
int genfbread(genfb_softc_t *sc, video_adapter_t *adp,
struct uio *uio, int flag);
int genfbwrite(genfb_softc_t *sc, video_adapter_t *adp,
struct uio *uio, int flag);
int genfbioctl(genfb_softc_t *sc, video_adapter_t *adp,
u_long cmd, caddr_t arg, int flag, struct thread *td);
int genfbmmap(genfb_softc_t *sc, video_adapter_t *adp,
vm_ooffset_t offset, vm_paddr_t *paddr,
int prot, vm_memattr_t *memattr);
#endif /* FB_INSTALL_CDEV */
/* generic low-level driver functions */
void fb_dump_adp_info(char *driver, video_adapter_t *adp, int level);
void fb_dump_mode_info(char *driver, video_adapter_t *adp,
video_info_t *info, int level);
int fb_type(int adp_type);
int fb_commonioctl(video_adapter_t *adp, u_long cmd, caddr_t arg);
#endif /* _KERNEL */
#endif /* !_DEV_FB_FBREG_H_ */
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