From: Claudio Suarez <cssk@net-c.es>
To: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Daniel Vetter <daniel@ffwll.ch>,
linux-fbdev@vger.kernel.org, dri-devel@lists.freedesktop.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] fbdev: Garbage collect fbdev scrolling acceleration, part 1 (from TODO list)
Date: Thu, 14 Oct 2021 09:55:36 +0200 [thread overview]
Message-ID: <YWfieCF7ptwG/SMt@gineta.localdomain> (raw)
In-Reply-To: <e1e1a4c9-231d-a14e-17d9-094771b1c262@suse.de>
On Wed, Oct 13, 2021 at 04:08:02PM +0200, Thomas Zimmermann wrote:
> Hi
>
> Am 01.10.21 um 14:48 schrieb Claudio Suarez:
> > On Fri, Oct 01, 2021 at 10:21:44AM +0200, Thomas Zimmermann wrote:
> > > Hi
> > >
> > > Am 30.09.21 um 17:10 schrieb Claudio:
> > > > Scroll acceleration is disabled in fbcon by hard-wiring
> > > > p->scrollmode = SCROLL_REDRAW. Remove the obsolete code in fbcon.c
> > > > and fbdev/core/
> > > >
> > > > Signed-off-by: Claudio Suarez <cssk@net-c.es>
> > > > ---
> > > >
> > > > - This is a task in the TODO list Documentation/gpu/todo.rst
> > > > - The contact in the task is Daniel Vetter. He is/you are in copy.
> > > > - To ease the things and saving time, I did a patch. It is included in this
> > > > message. I can redo it if there is something wrong.
> > > > - I tested it in some configurations.
> > > >
> > > > My plan for new patches in this task:
> > > > - A buch of patches to remove code from drivers: fb_copyarea and related.
> > > > - Simplify the code around fbcon_ops as much as possible to remove the hooks
> > > > as the TODO suggests.
> > > > - Remove fb_copyarea in headers and exported symbols: cfb_copyarea, etc. This
> > > > must be done when all the drivers are changed.
> > > >
> > > > I think that the correct list to ask questions about this
> > > > is linux-fbdev@vger.kernel.org . Is it correct ?
> > > > My question: I can develop the new changes. I can test in two computers/two
> > > > drivers. Is there a way to test the rest of the patches ? I have not hardware
> > > > to test them. Is anyone helping with this? Only regression tests are needed.
> > > > I can test other patches in return.
> > > >
> > > > Thank you.
> > > > Claudio Suarez.
> > > >
> > > > Patch follows:
> > > >
> > > > Documentation/gpu/todo.rst | 13 +-
> > > > drivers/video/fbdev/core/bitblit.c | 16 -
> > > > drivers/video/fbdev/core/fbcon.c | 509 ++------------------------------
> > > > drivers/video/fbdev/core/fbcon.h | 59 ----
> > > > drivers/video/fbdev/core/fbcon_ccw.c | 28 +-
> > > > drivers/video/fbdev/core/fbcon_cw.c | 28 +-
> > > > drivers/video/fbdev/core/fbcon_rotate.h | 9 -
> > > > drivers/video/fbdev/core/fbcon_ud.c | 37 +--
> > > > drivers/video/fbdev/core/tileblit.c | 16 -
> > > > drivers/video/fbdev/skeletonfb.c | 12 +-
> > > > include/linux/fb.h | 2 +-
> > > > 11 files changed, 51 insertions(+), 678 deletions(-)
> > >
> > > Nice stats :)
> > >
> > > I looked through it and it looks good. Maybe double-check that everything
> > > still builds.
> > >
> > > Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
> > >
> >
> > Yes, it still builds :)
> > I had built with some different .config options, including
> > allyesconfig, allno, some randoms and debian default config. I tested
> > some .config options related to fbdev. I spent time running some kernels
> > with different parameters and everything was ok.
> > Today, I've just applied the patch to source from two gits: Linus
> > rc and drm. Both have built ok.
> > I think that I did enough tests to ensure it works fine. This code is going
> > to run in many computers, mine included!
> > Of course, if you or anyone is worried about something specific, please,
> > tell me and I can check and re-check it. I don't want to miss something
> > important.
> >
> > Thank you!
>
> I added the patch to drm-misc-next.
Great!
Then I start to work in the second phase of removing unnecessary code
from every driver, which depends on this one.
Thanks a lot!
Best regards,
Claudio Suarez
>
> Best regards
> Thomas
>
> >
> > Best regards
> > Claudio Suarez
> >
> > > Best regards
> > > Thomas
> > >
> > > >
> > > > diff --git a/Documentation/gpu/todo.rst b/Documentation/gpu/todo.rst
> > > > index 12e61869939e..bb1e04bbf4fb 100644
> > > > --- a/Documentation/gpu/todo.rst
> > > > +++ b/Documentation/gpu/todo.rst
> > > > @@ -314,16 +314,19 @@ Level: Advanced
> > > > Garbage collect fbdev scrolling acceleration
> > > > --------------------------------------------
> > > > -Scroll acceleration is disabled in fbcon by hard-wiring p->scrollmode =
> > > > -SCROLL_REDRAW. There's a ton of code this will allow us to remove:
> > > > +Scroll acceleration has been disabled in fbcon. Now it works as the old
> > > > +SCROLL_REDRAW mode. A ton of code was removed in fbcon.c and the hook bmove was
> > > > +removed from fbcon_ops.
> > > > +Remaining tasks:
> > > > -- lots of code in fbcon.c
> > > > -
> > > > -- a bunch of the hooks in fbcon_ops, maybe the remaining hooks could be called
> > > > +- a bunch of the hooks in fbcon_ops could be removed or simplified by calling
> > > > directly instead of the function table (with a switch on p->rotate)
> > > > - fb_copyarea is unused after this, and can be deleted from all drivers
> > > > +- after that, fb_copyarea can be deleted from fb_ops in include/linux/fb.h as
> > > > + well as cfb_copyarea
> > > > +
> > > > Note that not all acceleration code can be deleted, since clearing and cursor
> > > > support is still accelerated, which might be good candidates for further
> > > > deletion projects.
> > > > diff --git a/drivers/video/fbdev/core/bitblit.c b/drivers/video/fbdev/core/bitblit.c
> > > > index f98e8f298bc1..01fae2c96965 100644
> > > > --- a/drivers/video/fbdev/core/bitblit.c
> > > > +++ b/drivers/video/fbdev/core/bitblit.c
> > > > @@ -43,21 +43,6 @@ static void update_attr(u8 *dst, u8 *src, int attribute,
> > > > }
> > > > }
> > > > -static void bit_bmove(struct vc_data *vc, struct fb_info *info, int sy,
> > > > - int sx, int dy, int dx, int height, int width)
> > > > -{
> > > > - struct fb_copyarea area;
> > > > -
> > > > - area.sx = sx * vc->vc_font.width;
> > > > - area.sy = sy * vc->vc_font.height;
> > > > - area.dx = dx * vc->vc_font.width;
> > > > - area.dy = dy * vc->vc_font.height;
> > > > - area.height = height * vc->vc_font.height;
> > > > - area.width = width * vc->vc_font.width;
> > > > -
> > > > - info->fbops->fb_copyarea(info, &area);
> > > > -}
> > > > -
> > > > static void bit_clear(struct vc_data *vc, struct fb_info *info, int sy,
> > > > int sx, int height, int width)
> > > > {
> > > > @@ -393,7 +378,6 @@ static int bit_update_start(struct fb_info *info)
> > > > void fbcon_set_bitops(struct fbcon_ops *ops)
> > > > {
> > > > - ops->bmove = bit_bmove;
> > > > ops->clear = bit_clear;
> > > > ops->putcs = bit_putcs;
> > > > ops->clear_margins = bit_clear_margins;
> > > > diff --git a/drivers/video/fbdev/core/fbcon.c b/drivers/video/fbdev/core/fbcon.c
> > > > index 22bb3892f6bd..99ecd9a6d844 100644
> > > > --- a/drivers/video/fbdev/core/fbcon.c
> > > > +++ b/drivers/video/fbdev/core/fbcon.c
> > > > @@ -173,8 +173,6 @@ static void fbcon_putcs(struct vc_data *vc, const unsigned short *s,
> > > > int count, int ypos, int xpos);
> > > > static void fbcon_clear_margins(struct vc_data *vc, int bottom_only);
> > > > static void fbcon_cursor(struct vc_data *vc, int mode);
> > > > -static void fbcon_bmove(struct vc_data *vc, int sy, int sx, int dy, int dx,
> > > > - int height, int width);
> > > > static int fbcon_switch(struct vc_data *vc);
> > > > static int fbcon_blank(struct vc_data *vc, int blank, int mode_switch);
> > > > static void fbcon_set_palette(struct vc_data *vc, const unsigned char *table);
> > > > @@ -182,16 +180,8 @@ static void fbcon_set_palette(struct vc_data *vc, const unsigned char *table);
> > > > /*
> > > > * Internal routines
> > > > */
> > > > -static __inline__ void ywrap_up(struct vc_data *vc, int count);
> > > > -static __inline__ void ywrap_down(struct vc_data *vc, int count);
> > > > -static __inline__ void ypan_up(struct vc_data *vc, int count);
> > > > -static __inline__ void ypan_down(struct vc_data *vc, int count);
> > > > -static void fbcon_bmove_rec(struct vc_data *vc, struct fbcon_display *p, int sy, int sx,
> > > > - int dy, int dx, int height, int width, u_int y_break);
> > > > static void fbcon_set_disp(struct fb_info *info, struct fb_var_screeninfo *var,
> > > > int unit);
> > > > -static void fbcon_redraw_move(struct vc_data *vc, struct fbcon_display *p,
> > > > - int line, int count, int dy);
> > > > static void fbcon_modechanged(struct fb_info *info);
> > > > static void fbcon_set_all_vcs(struct fb_info *info);
> > > > static void fbcon_start(void);
> > > > @@ -1135,14 +1125,6 @@ static void fbcon_init(struct vc_data *vc, int init)
> > > > ops->graphics = 0;
> > > > - /*
> > > > - * No more hw acceleration for fbcon.
> > > > - *
> > > > - * FIXME: Garbage collect all the now dead code after sufficient time
> > > > - * has passed.
> > > > - */
> > > > - p->scrollmode = SCROLL_REDRAW;
> > > > -
> > > > /*
> > > > * ++guenther: console.c:vc_allocate() relies on initializing
> > > > * vc_{cols,rows}, but we must not set those if we are only
> > > > @@ -1229,14 +1211,13 @@ static void fbcon_deinit(struct vc_data *vc)
> > > > * This system is now divided into two levels because of complications
> > > > * caused by hardware scrolling. Top level functions:
> > > > *
> > > > - * fbcon_bmove(), fbcon_clear(), fbcon_putc(), fbcon_clear_margins()
> > > > + * fbcon_clear(), fbcon_putc(), fbcon_clear_margins()
> > > > *
> > > > * handles y values in range [0, scr_height-1] that correspond to real
> > > > * screen positions. y_wrap shift means that first line of bitmap may be
> > > > * anywhere on this display. These functions convert lineoffsets to
> > > > * bitmap offsets and deal with the wrap-around case by splitting blits.
> > > > *
> > > > - * fbcon_bmove_physical_8() -- These functions fast implementations
> > > > * fbcon_clear_physical_8() -- of original fbcon_XXX fns.
> > > > * fbcon_putc_physical_8() -- (font width != 8) may be added later
> > > > *
> > > > @@ -1409,224 +1390,6 @@ static void fbcon_set_disp(struct fb_info *info, struct fb_var_screeninfo *var,
> > > > }
> > > > }
> > > > -static __inline__ void ywrap_up(struct vc_data *vc, int count)
> > > > -{
> > > > - struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]];
> > > > - struct fbcon_ops *ops = info->fbcon_par;
> > > > - struct fbcon_display *p = &fb_display[vc->vc_num];
> > > > -
> > > > - p->yscroll += count;
> > > > - if (p->yscroll >= p->vrows) /* Deal with wrap */
> > > > - p->yscroll -= p->vrows;
> > > > - ops->var.xoffset = 0;
> > > > - ops->var.yoffset = p->yscroll * vc->vc_font.height;
> > > > - ops->var.vmode |= FB_VMODE_YWRAP;
> > > > - ops->update_start(info);
> > > > - scrollback_max += count;
> > > > - if (scrollback_max > scrollback_phys_max)
> > > > - scrollback_max = scrollback_phys_max;
> > > > - scrollback_current = 0;
> > > > -}
> > > > -
> > > > -static __inline__ void ywrap_down(struct vc_data *vc, int count)
> > > > -{
> > > > - struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]];
> > > > - struct fbcon_ops *ops = info->fbcon_par;
> > > > - struct fbcon_display *p = &fb_display[vc->vc_num];
> > > > -
> > > > - p->yscroll -= count;
> > > > - if (p->yscroll < 0) /* Deal with wrap */
> > > > - p->yscroll += p->vrows;
> > > > - ops->var.xoffset = 0;
> > > > - ops->var.yoffset = p->yscroll * vc->vc_font.height;
> > > > - ops->var.vmode |= FB_VMODE_YWRAP;
> > > > - ops->update_start(info);
> > > > - scrollback_max -= count;
> > > > - if (scrollback_max < 0)
> > > > - scrollback_max = 0;
> > > > - scrollback_current = 0;
> > > > -}
> > > > -
> > > > -static __inline__ void ypan_up(struct vc_data *vc, int count)
> > > > -{
> > > > - struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]];
> > > > - struct fbcon_display *p = &fb_display[vc->vc_num];
> > > > - struct fbcon_ops *ops = info->fbcon_par;
> > > > -
> > > > - p->yscroll += count;
> > > > - if (p->yscroll > p->vrows - vc->vc_rows) {
> > > > - ops->bmove(vc, info, p->vrows - vc->vc_rows,
> > > > - 0, 0, 0, vc->vc_rows, vc->vc_cols);
> > > > - p->yscroll -= p->vrows - vc->vc_rows;
> > > > - }
> > > > -
> > > > - ops->var.xoffset = 0;
> > > > - ops->var.yoffset = p->yscroll * vc->vc_font.height;
> > > > - ops->var.vmode &= ~FB_VMODE_YWRAP;
> > > > - ops->update_start(info);
> > > > - fbcon_clear_margins(vc, 1);
> > > > - scrollback_max += count;
> > > > - if (scrollback_max > scrollback_phys_max)
> > > > - scrollback_max = scrollback_phys_max;
> > > > - scrollback_current = 0;
> > > > -}
> > > > -
> > > > -static __inline__ void ypan_up_redraw(struct vc_data *vc, int t, int count)
> > > > -{
> > > > - struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]];
> > > > - struct fbcon_ops *ops = info->fbcon_par;
> > > > - struct fbcon_display *p = &fb_display[vc->vc_num];
> > > > -
> > > > - p->yscroll += count;
> > > > -
> > > > - if (p->yscroll > p->vrows - vc->vc_rows) {
> > > > - p->yscroll -= p->vrows - vc->vc_rows;
> > > > - fbcon_redraw_move(vc, p, t + count, vc->vc_rows - count, t);
> > > > - }
> > > > -
> > > > - ops->var.xoffset = 0;
> > > > - ops->var.yoffset = p->yscroll * vc->vc_font.height;
> > > > - ops->var.vmode &= ~FB_VMODE_YWRAP;
> > > > - ops->update_start(info);
> > > > - fbcon_clear_margins(vc, 1);
> > > > - scrollback_max += count;
> > > > - if (scrollback_max > scrollback_phys_max)
> > > > - scrollback_max = scrollback_phys_max;
> > > > - scrollback_current = 0;
> > > > -}
> > > > -
> > > > -static __inline__ void ypan_down(struct vc_data *vc, int count)
> > > > -{
> > > > - struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]];
> > > > - struct fbcon_display *p = &fb_display[vc->vc_num];
> > > > - struct fbcon_ops *ops = info->fbcon_par;
> > > > -
> > > > - p->yscroll -= count;
> > > > - if (p->yscroll < 0) {
> > > > - ops->bmove(vc, info, 0, 0, p->vrows - vc->vc_rows,
> > > > - 0, vc->vc_rows, vc->vc_cols);
> > > > - p->yscroll += p->vrows - vc->vc_rows;
> > > > - }
> > > > -
> > > > - ops->var.xoffset = 0;
> > > > - ops->var.yoffset = p->yscroll * vc->vc_font.height;
> > > > - ops->var.vmode &= ~FB_VMODE_YWRAP;
> > > > - ops->update_start(info);
> > > > - fbcon_clear_margins(vc, 1);
> > > > - scrollback_max -= count;
> > > > - if (scrollback_max < 0)
> > > > - scrollback_max = 0;
> > > > - scrollback_current = 0;
> > > > -}
> > > > -
> > > > -static __inline__ void ypan_down_redraw(struct vc_data *vc, int t, int count)
> > > > -{
> > > > - struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]];
> > > > - struct fbcon_ops *ops = info->fbcon_par;
> > > > - struct fbcon_display *p = &fb_display[vc->vc_num];
> > > > -
> > > > - p->yscroll -= count;
> > > > -
> > > > - if (p->yscroll < 0) {
> > > > - p->yscroll += p->vrows - vc->vc_rows;
> > > > - fbcon_redraw_move(vc, p, t, vc->vc_rows - count, t + count);
> > > > - }
> > > > -
> > > > - ops->var.xoffset = 0;
> > > > - ops->var.yoffset = p->yscroll * vc->vc_font.height;
> > > > - ops->var.vmode &= ~FB_VMODE_YWRAP;
> > > > - ops->update_start(info);
> > > > - fbcon_clear_margins(vc, 1);
> > > > - scrollback_max -= count;
> > > > - if (scrollback_max < 0)
> > > > - scrollback_max = 0;
> > > > - scrollback_current = 0;
> > > > -}
> > > > -
> > > > -static void fbcon_redraw_move(struct vc_data *vc, struct fbcon_display *p,
> > > > - int line, int count, int dy)
> > > > -{
> > > > - unsigned short *s = (unsigned short *)
> > > > - (vc->vc_origin + vc->vc_size_row * line);
> > > > -
> > > > - while (count--) {
> > > > - unsigned short *start = s;
> > > > - unsigned short *le = advance_row(s, 1);
> > > > - unsigned short c;
> > > > - int x = 0;
> > > > - unsigned short attr = 1;
> > > > -
> > > > - do {
> > > > - c = scr_readw(s);
> > > > - if (attr != (c & 0xff00)) {
> > > > - attr = c & 0xff00;
> > > > - if (s > start) {
> > > > - fbcon_putcs(vc, start, s - start,
> > > > - dy, x);
> > > > - x += s - start;
> > > > - start = s;
> > > > - }
> > > > - }
> > > > - console_conditional_schedule();
> > > > - s++;
> > > > - } while (s < le);
> > > > - if (s > start)
> > > > - fbcon_putcs(vc, start, s - start, dy, x);
> > > > - console_conditional_schedule();
> > > > - dy++;
> > > > - }
> > > > -}
> > > > -
> > > > -static void fbcon_redraw_blit(struct vc_data *vc, struct fb_info *info,
> > > > - struct fbcon_display *p, int line, int count, int ycount)
> > > > -{
> > > > - int offset = ycount * vc->vc_cols;
> > > > - unsigned short *d = (unsigned short *)
> > > > - (vc->vc_origin + vc->vc_size_row * line);
> > > > - unsigned short *s = d + offset;
> > > > - struct fbcon_ops *ops = info->fbcon_par;
> > > > -
> > > > - while (count--) {
> > > > - unsigned short *start = s;
> > > > - unsigned short *le = advance_row(s, 1);
> > > > - unsigned short c;
> > > > - int x = 0;
> > > > -
> > > > - do {
> > > > - c = scr_readw(s);
> > > > -
> > > > - if (c == scr_readw(d)) {
> > > > - if (s > start) {
> > > > - ops->bmove(vc, info, line + ycount, x,
> > > > - line, x, 1, s-start);
> > > > - x += s - start + 1;
> > > > - start = s + 1;
> > > > - } else {
> > > > - x++;
> > > > - start++;
> > > > - }
> > > > - }
> > > > -
> > > > - scr_writew(c, d);
> > > > - console_conditional_schedule();
> > > > - s++;
> > > > - d++;
> > > > - } while (s < le);
> > > > - if (s > start)
> > > > - ops->bmove(vc, info, line + ycount, x, line, x, 1,
> > > > - s-start);
> > > > - console_conditional_schedule();
> > > > - if (ycount > 0)
> > > > - line++;
> > > > - else {
> > > > - line--;
> > > > - /* NOTE: We subtract two lines from these pointers */
> > > > - s -= vc->vc_size_row;
> > > > - d -= vc->vc_size_row;
> > > > - }
> > > > - }
> > > > -}
> > > > -
> > > > static void fbcon_redraw(struct vc_data *vc, struct fbcon_display *p,
> > > > int line, int count, int offset)
> > > > {
> > > > @@ -1687,7 +1450,6 @@ static bool fbcon_scroll(struct vc_data *vc, unsigned int t, unsigned int b,
> > > > {
> > > > struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]];
> > > > struct fbcon_display *p = &fb_display[vc->vc_num];
> > > > - int scroll_partial = info->flags & FBINFO_PARTIAL_PAN_OK;
> > > > if (fbcon_is_inactive(vc, info))
> > > > return true;
> > > > @@ -1704,249 +1466,32 @@ static bool fbcon_scroll(struct vc_data *vc, unsigned int t, unsigned int b,
> > > > case SM_UP:
> > > > if (count > vc->vc_rows) /* Maximum realistic size */
> > > > count = vc->vc_rows;
> > > > - if (logo_shown >= 0)
> > > > - goto redraw_up;
> > > > - switch (p->scrollmode) {
> > > > - case SCROLL_MOVE:
> > > > - fbcon_redraw_blit(vc, info, p, t, b - t - count,
> > > > - count);
> > > > - fbcon_clear(vc, b - count, 0, count, vc->vc_cols);
> > > > - scr_memsetw((unsigned short *) (vc->vc_origin +
> > > > - vc->vc_size_row *
> > > > - (b - count)),
> > > > - vc->vc_video_erase_char,
> > > > - vc->vc_size_row * count);
> > > > - return true;
> > > > -
> > > > - case SCROLL_WRAP_MOVE:
> > > > - if (b - t - count > 3 * vc->vc_rows >> 2) {
> > > > - if (t > 0)
> > > > - fbcon_bmove(vc, 0, 0, count, 0, t,
> > > > - vc->vc_cols);
> > > > - ywrap_up(vc, count);
> > > > - if (vc->vc_rows - b > 0)
> > > > - fbcon_bmove(vc, b - count, 0, b, 0,
> > > > - vc->vc_rows - b,
> > > > - vc->vc_cols);
> > > > - } else if (info->flags & FBINFO_READS_FAST)
> > > > - fbcon_bmove(vc, t + count, 0, t, 0,
> > > > - b - t - count, vc->vc_cols);
> > > > - else
> > > > - goto redraw_up;
> > > > - fbcon_clear(vc, b - count, 0, count, vc->vc_cols);
> > > > - break;
> > > > -
> > > > - case SCROLL_PAN_REDRAW:
> > > > - if ((p->yscroll + count <=
> > > > - 2 * (p->vrows - vc->vc_rows))
> > > > - && ((!scroll_partial && (b - t == vc->vc_rows))
> > > > - || (scroll_partial
> > > > - && (b - t - count >
> > > > - 3 * vc->vc_rows >> 2)))) {
> > > > - if (t > 0)
> > > > - fbcon_redraw_move(vc, p, 0, t, count);
> > > > - ypan_up_redraw(vc, t, count);
> > > > - if (vc->vc_rows - b > 0)
> > > > - fbcon_redraw_move(vc, p, b,
> > > > - vc->vc_rows - b, b);
> > > > - } else
> > > > - fbcon_redraw_move(vc, p, t + count, b - t - count, t);
> > > > - fbcon_clear(vc, b - count, 0, count, vc->vc_cols);
> > > > - break;
> > > > -
> > > > - case SCROLL_PAN_MOVE:
> > > > - if ((p->yscroll + count <=
> > > > - 2 * (p->vrows - vc->vc_rows))
> > > > - && ((!scroll_partial && (b - t == vc->vc_rows))
> > > > - || (scroll_partial
> > > > - && (b - t - count >
> > > > - 3 * vc->vc_rows >> 2)))) {
> > > > - if (t > 0)
> > > > - fbcon_bmove(vc, 0, 0, count, 0, t,
> > > > - vc->vc_cols);
> > > > - ypan_up(vc, count);
> > > > - if (vc->vc_rows - b > 0)
> > > > - fbcon_bmove(vc, b - count, 0, b, 0,
> > > > - vc->vc_rows - b,
> > > > - vc->vc_cols);
> > > > - } else if (info->flags & FBINFO_READS_FAST)
> > > > - fbcon_bmove(vc, t + count, 0, t, 0,
> > > > - b - t - count, vc->vc_cols);
> > > > - else
> > > > - goto redraw_up;
> > > > - fbcon_clear(vc, b - count, 0, count, vc->vc_cols);
> > > > - break;
> > > > -
> > > > - case SCROLL_REDRAW:
> > > > - redraw_up:
> > > > - fbcon_redraw(vc, p, t, b - t - count,
> > > > - count * vc->vc_cols);
> > > > - fbcon_clear(vc, b - count, 0, count, vc->vc_cols);
> > > > - scr_memsetw((unsigned short *) (vc->vc_origin +
> > > > - vc->vc_size_row *
> > > > - (b - count)),
> > > > - vc->vc_video_erase_char,
> > > > - vc->vc_size_row * count);
> > > > - return true;
> > > > - }
> > > > - break;
> > > > + fbcon_redraw(vc, p, t, b - t - count,
> > > > + count * vc->vc_cols);
> > > > + fbcon_clear(vc, b - count, 0, count, vc->vc_cols);
> > > > + scr_memsetw((unsigned short *) (vc->vc_origin +
> > > > + vc->vc_size_row *
> > > > + (b - count)),
> > > > + vc->vc_video_erase_char,
> > > > + vc->vc_size_row * count);
> > > > + return true;
> > > > case SM_DOWN:
> > > > if (count > vc->vc_rows) /* Maximum realistic size */
> > > > count = vc->vc_rows;
> > > > - if (logo_shown >= 0)
> > > > - goto redraw_down;
> > > > - switch (p->scrollmode) {
> > > > - case SCROLL_MOVE:
> > > > - fbcon_redraw_blit(vc, info, p, b - 1, b - t - count,
> > > > - -count);
> > > > - fbcon_clear(vc, t, 0, count, vc->vc_cols);
> > > > - scr_memsetw((unsigned short *) (vc->vc_origin +
> > > > - vc->vc_size_row *
> > > > - t),
> > > > - vc->vc_video_erase_char,
> > > > - vc->vc_size_row * count);
> > > > - return true;
> > > > -
> > > > - case SCROLL_WRAP_MOVE:
> > > > - if (b - t - count > 3 * vc->vc_rows >> 2) {
> > > > - if (vc->vc_rows - b > 0)
> > > > - fbcon_bmove(vc, b, 0, b - count, 0,
> > > > - vc->vc_rows - b,
> > > > - vc->vc_cols);
> > > > - ywrap_down(vc, count);
> > > > - if (t > 0)
> > > > - fbcon_bmove(vc, count, 0, 0, 0, t,
> > > > - vc->vc_cols);
> > > > - } else if (info->flags & FBINFO_READS_FAST)
> > > > - fbcon_bmove(vc, t, 0, t + count, 0,
> > > > - b - t - count, vc->vc_cols);
> > > > - else
> > > > - goto redraw_down;
> > > > - fbcon_clear(vc, t, 0, count, vc->vc_cols);
> > > > - break;
> > > > -
> > > > - case SCROLL_PAN_MOVE:
> > > > - if ((count - p->yscroll <= p->vrows - vc->vc_rows)
> > > > - && ((!scroll_partial && (b - t == vc->vc_rows))
> > > > - || (scroll_partial
> > > > - && (b - t - count >
> > > > - 3 * vc->vc_rows >> 2)))) {
> > > > - if (vc->vc_rows - b > 0)
> > > > - fbcon_bmove(vc, b, 0, b - count, 0,
> > > > - vc->vc_rows - b,
> > > > - vc->vc_cols);
> > > > - ypan_down(vc, count);
> > > > - if (t > 0)
> > > > - fbcon_bmove(vc, count, 0, 0, 0, t,
> > > > - vc->vc_cols);
> > > > - } else if (info->flags & FBINFO_READS_FAST)
> > > > - fbcon_bmove(vc, t, 0, t + count, 0,
> > > > - b - t - count, vc->vc_cols);
> > > > - else
> > > > - goto redraw_down;
> > > > - fbcon_clear(vc, t, 0, count, vc->vc_cols);
> > > > - break;
> > > > -
> > > > - case SCROLL_PAN_REDRAW:
> > > > - if ((count - p->yscroll <= p->vrows - vc->vc_rows)
> > > > - && ((!scroll_partial && (b - t == vc->vc_rows))
> > > > - || (scroll_partial
> > > > - && (b - t - count >
> > > > - 3 * vc->vc_rows >> 2)))) {
> > > > - if (vc->vc_rows - b > 0)
> > > > - fbcon_redraw_move(vc, p, b, vc->vc_rows - b,
> > > > - b - count);
> > > > - ypan_down_redraw(vc, t, count);
> > > > - if (t > 0)
> > > > - fbcon_redraw_move(vc, p, count, t, 0);
> > > > - } else
> > > > - fbcon_redraw_move(vc, p, t, b - t - count, t + count);
> > > > - fbcon_clear(vc, t, 0, count, vc->vc_cols);
> > > > - break;
> > > > -
> > > > - case SCROLL_REDRAW:
> > > > - redraw_down:
> > > > - fbcon_redraw(vc, p, b - 1, b - t - count,
> > > > - -count * vc->vc_cols);
> > > > - fbcon_clear(vc, t, 0, count, vc->vc_cols);
> > > > - scr_memsetw((unsigned short *) (vc->vc_origin +
> > > > - vc->vc_size_row *
> > > > - t),
> > > > - vc->vc_video_erase_char,
> > > > - vc->vc_size_row * count);
> > > > - return true;
> > > > - }
> > > > + fbcon_redraw(vc, p, b - 1, b - t - count,
> > > > + -count * vc->vc_cols);
> > > > + fbcon_clear(vc, t, 0, count, vc->vc_cols);
> > > > + scr_memsetw((unsigned short *) (vc->vc_origin +
> > > > + vc->vc_size_row *
> > > > + t),
> > > > + vc->vc_video_erase_char,
> > > > + vc->vc_size_row * count);
> > > > + return true;
> > > > }
> > > > return false;
> > > > }
> > > > -
> > > > -static void fbcon_bmove(struct vc_data *vc, int sy, int sx, int dy, int dx,
> > > > - int height, int width)
> > > > -{
> > > > - struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]];
> > > > - struct fbcon_display *p = &fb_display[vc->vc_num];
> > > > -
> > > > - if (fbcon_is_inactive(vc, info))
> > > > - return;
> > > > -
> > > > - if (!width || !height)
> > > > - return;
> > > > -
> > > > - /* Split blits that cross physical y_wrap case.
> > > > - * Pathological case involves 4 blits, better to use recursive
> > > > - * code rather than unrolled case
> > > > - *
> > > > - * Recursive invocations don't need to erase the cursor over and
> > > > - * over again, so we use fbcon_bmove_rec()
> > > > - */
> > > > - fbcon_bmove_rec(vc, p, sy, sx, dy, dx, height, width,
> > > > - p->vrows - p->yscroll);
> > > > -}
> > > > -
> > > > -static void fbcon_bmove_rec(struct vc_data *vc, struct fbcon_display *p, int sy, int sx,
> > > > - int dy, int dx, int height, int width, u_int y_break)
> > > > -{
> > > > - struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]];
> > > > - struct fbcon_ops *ops = info->fbcon_par;
> > > > - u_int b;
> > > > -
> > > > - if (sy < y_break && sy + height > y_break) {
> > > > - b = y_break - sy;
> > > > - if (dy < sy) { /* Avoid trashing self */
> > > > - fbcon_bmove_rec(vc, p, sy, sx, dy, dx, b, width,
> > > > - y_break);
> > > > - fbcon_bmove_rec(vc, p, sy + b, sx, dy + b, dx,
> > > > - height - b, width, y_break);
> > > > - } else {
> > > > - fbcon_bmove_rec(vc, p, sy + b, sx, dy + b, dx,
> > > > - height - b, width, y_break);
> > > > - fbcon_bmove_rec(vc, p, sy, sx, dy, dx, b, width,
> > > > - y_break);
> > > > - }
> > > > - return;
> > > > - }
> > > > -
> > > > - if (dy < y_break && dy + height > y_break) {
> > > > - b = y_break - dy;
> > > > - if (dy < sy) { /* Avoid trashing self */
> > > > - fbcon_bmove_rec(vc, p, sy, sx, dy, dx, b, width,
> > > > - y_break);
> > > > - fbcon_bmove_rec(vc, p, sy + b, sx, dy + b, dx,
> > > > - height - b, width, y_break);
> > > > - } else {
> > > > - fbcon_bmove_rec(vc, p, sy + b, sx, dy + b, dx,
> > > > - height - b, width, y_break);
> > > > - fbcon_bmove_rec(vc, p, sy, sx, dy, dx, b, width,
> > > > - y_break);
> > > > - }
> > > > - return;
> > > > - }
> > > > - ops->bmove(vc, info, real_y(p, sy), sx, real_y(p, dy), dx,
> > > > - height, width);
> > > > -}
> > > > -
> > > > static void updatescrollmode(struct fbcon_display *p,
> > > > struct fb_info *info,
> > > > struct vc_data *vc)
> > > > @@ -2119,21 +1664,7 @@ static int fbcon_switch(struct vc_data *vc)
> > > > updatescrollmode(p, info, vc);
> > > > - switch (p->scrollmode) {
> > > > - case SCROLL_WRAP_MOVE:
> > > > - scrollback_phys_max = p->vrows - vc->vc_rows;
> > > > - break;
> > > > - case SCROLL_PAN_MOVE:
> > > > - case SCROLL_PAN_REDRAW:
> > > > - scrollback_phys_max = p->vrows - 2 * vc->vc_rows;
> > > > - if (scrollback_phys_max < 0)
> > > > - scrollback_phys_max = 0;
> > > > - break;
> > > > - default:
> > > > - scrollback_phys_max = 0;
> > > > - break;
> > > > - }
> > > > -
> > > > + scrollback_phys_max = 0;
> > > > scrollback_max = 0;
> > > > scrollback_current = 0;
> > > > diff --git a/drivers/video/fbdev/core/fbcon.h b/drivers/video/fbdev/core/fbcon.h
> > > > index 9315b360c898..a00603b4451a 100644
> > > > --- a/drivers/video/fbdev/core/fbcon.h
> > > > +++ b/drivers/video/fbdev/core/fbcon.h
> > > > @@ -29,7 +29,6 @@ struct fbcon_display {
> > > > /* Filled in by the low-level console driver */
> > > > const u_char *fontdata;
> > > > int userfont; /* != 0 if fontdata kmalloc()ed */
> > > > - u_short scrollmode; /* Scroll Method */
> > > > u_short inverse; /* != 0 text black on white as default */
> > > > short yscroll; /* Hardware scrolling */
> > > > int vrows; /* number of virtual rows */
> > > > @@ -52,8 +51,6 @@ struct fbcon_display {
> > > > };
> > > > struct fbcon_ops {
> > > > - void (*bmove)(struct vc_data *vc, struct fb_info *info, int sy,
> > > > - int sx, int dy, int dx, int height, int width);
> > > > void (*clear)(struct vc_data *vc, struct fb_info *info, int sy,
> > > > int sx, int height, int width);
> > > > void (*putcs)(struct vc_data *vc, struct fb_info *info,
> > > > @@ -152,62 +149,6 @@ static inline int attr_col_ec(int shift, struct vc_data *vc,
> > > > #define attr_bgcol_ec(bgshift, vc, info) attr_col_ec(bgshift, vc, info, 0)
> > > > #define attr_fgcol_ec(fgshift, vc, info) attr_col_ec(fgshift, vc, info, 1)
> > > > - /*
> > > > - * Scroll Method
> > > > - */
> > > > -
> > > > -/* There are several methods fbcon can use to move text around the screen:
> > > > - *
> > > > - * Operation Pan Wrap
> > > > - *---------------------------------------------
> > > > - * SCROLL_MOVE copyarea No No
> > > > - * SCROLL_PAN_MOVE copyarea Yes No
> > > > - * SCROLL_WRAP_MOVE copyarea No Yes
> > > > - * SCROLL_REDRAW imageblit No No
> > > > - * SCROLL_PAN_REDRAW imageblit Yes No
> > > > - * SCROLL_WRAP_REDRAW imageblit No Yes
> > > > - *
> > > > - * (SCROLL_WRAP_REDRAW is not implemented yet)
> > > > - *
> > > > - * In general, fbcon will choose the best scrolling
> > > > - * method based on the rule below:
> > > > - *
> > > > - * Pan/Wrap > accel imageblit > accel copyarea >
> > > > - * soft imageblit > (soft copyarea)
> > > > - *
> > > > - * Exception to the rule: Pan + accel copyarea is
> > > > - * preferred over Pan + accel imageblit.
> > > > - *
> > > > - * The above is typical for PCI/AGP cards. Unless
> > > > - * overridden, fbcon will never use soft copyarea.
> > > > - *
> > > > - * If you need to override the above rule, set the
> > > > - * appropriate flags in fb_info->flags. For example,
> > > > - * to prefer copyarea over imageblit, set
> > > > - * FBINFO_READS_FAST.
> > > > - *
> > > > - * Other notes:
> > > > - * + use the hardware engine to move the text
> > > > - * (hw-accelerated copyarea() and fillrect())
> > > > - * + use hardware-supported panning on a large virtual screen
> > > > - * + amifb can not only pan, but also wrap the display by N lines
> > > > - * (i.e. visible line i = physical line (i+N) % yres).
> > > > - * + read what's already rendered on the screen and
> > > > - * write it in a different place (this is cfb_copyarea())
> > > > - * + re-render the text to the screen
> > > > - *
> > > > - * Whether to use wrapping or panning can only be figured out at
> > > > - * runtime (when we know whether our font height is a multiple
> > > > - * of the pan/wrap step)
> > > > - *
> > > > - */
> > > > -
> > > > -#define SCROLL_MOVE 0x001
> > > > -#define SCROLL_PAN_MOVE 0x002
> > > > -#define SCROLL_WRAP_MOVE 0x003
> > > > -#define SCROLL_REDRAW 0x004
> > > > -#define SCROLL_PAN_REDRAW 0x005
> > > > -
> > > > #ifdef CONFIG_FB_TILEBLITTING
> > > > extern void fbcon_set_tileops(struct vc_data *vc, struct fb_info *info);
> > > > #endif
> > > > diff --git a/drivers/video/fbdev/core/fbcon_ccw.c b/drivers/video/fbdev/core/fbcon_ccw.c
> > > > index 9cd2c4b05c32..ffa78936eaab 100644
> > > > --- a/drivers/video/fbdev/core/fbcon_ccw.c
> > > > +++ b/drivers/video/fbdev/core/fbcon_ccw.c
> > > > @@ -59,31 +59,12 @@ static void ccw_update_attr(u8 *dst, u8 *src, int attribute,
> > > > }
> > > > }
> > > > -
> > > > -static void ccw_bmove(struct vc_data *vc, struct fb_info *info, int sy,
> > > > - int sx, int dy, int dx, int height, int width)
> > > > -{
> > > > - struct fbcon_ops *ops = info->fbcon_par;
> > > > - struct fb_copyarea area;
> > > > - u32 vyres = GETVYRES(ops->p->scrollmode, info);
> > > > -
> > > > - area.sx = sy * vc->vc_font.height;
> > > > - area.sy = vyres - ((sx + width) * vc->vc_font.width);
> > > > - area.dx = dy * vc->vc_font.height;
> > > > - area.dy = vyres - ((dx + width) * vc->vc_font.width);
> > > > - area.width = height * vc->vc_font.height;
> > > > - area.height = width * vc->vc_font.width;
> > > > -
> > > > - info->fbops->fb_copyarea(info, &area);
> > > > -}
> > > > -
> > > > static void ccw_clear(struct vc_data *vc, struct fb_info *info, int sy,
> > > > int sx, int height, int width)
> > > > {
> > > > - struct fbcon_ops *ops = info->fbcon_par;
> > > > struct fb_fillrect region;
> > > > int bgshift = (vc->vc_hi_font_mask) ? 13 : 12;
> > > > - u32 vyres = GETVYRES(ops->p->scrollmode, info);
> > > > + u32 vyres = info->var.yres;
> > > > region.color = attr_bgcol_ec(bgshift,vc,info);
> > > > region.dx = sy * vc->vc_font.height;
> > > > @@ -140,7 +121,7 @@ static void ccw_putcs(struct vc_data *vc, struct fb_info *info,
> > > > u32 cnt, pitch, size;
> > > > u32 attribute = get_attribute(info, scr_readw(s));
> > > > u8 *dst, *buf = NULL;
> > > > - u32 vyres = GETVYRES(ops->p->scrollmode, info);
> > > > + u32 vyres = info->var.yres;
> > > > if (!ops->fontbuffer)
> > > > return;
> > > > @@ -229,7 +210,7 @@ static void ccw_cursor(struct vc_data *vc, struct fb_info *info, int mode,
> > > > int attribute, use_sw = vc->vc_cursor_type & CUR_SW;
> > > > int err = 1, dx, dy;
> > > > char *src;
> > > > - u32 vyres = GETVYRES(ops->p->scrollmode, info);
> > > > + u32 vyres = info->var.yres;
> > > > if (!ops->fontbuffer)
> > > > return;
> > > > @@ -387,7 +368,7 @@ static int ccw_update_start(struct fb_info *info)
> > > > {
> > > > struct fbcon_ops *ops = info->fbcon_par;
> > > > u32 yoffset;
> > > > - u32 vyres = GETVYRES(ops->p->scrollmode, info);
> > > > + u32 vyres = info->var.yres;
> > > > int err;
> > > > yoffset = (vyres - info->var.yres) - ops->var.xoffset;
> > > > @@ -402,7 +383,6 @@ static int ccw_update_start(struct fb_info *info)
> > > > void fbcon_rotate_ccw(struct fbcon_ops *ops)
> > > > {
> > > > - ops->bmove = ccw_bmove;
> > > > ops->clear = ccw_clear;
> > > > ops->putcs = ccw_putcs;
> > > > ops->clear_margins = ccw_clear_margins;
> > > > diff --git a/drivers/video/fbdev/core/fbcon_cw.c b/drivers/video/fbdev/core/fbcon_cw.c
> > > > index 88d89fad3f05..92e5b7fb51ee 100644
> > > > --- a/drivers/video/fbdev/core/fbcon_cw.c
> > > > +++ b/drivers/video/fbdev/core/fbcon_cw.c
> > > > @@ -44,31 +44,12 @@ static void cw_update_attr(u8 *dst, u8 *src, int attribute,
> > > > }
> > > > }
> > > > -
> > > > -static void cw_bmove(struct vc_data *vc, struct fb_info *info, int sy,
> > > > - int sx, int dy, int dx, int height, int width)
> > > > -{
> > > > - struct fbcon_ops *ops = info->fbcon_par;
> > > > - struct fb_copyarea area;
> > > > - u32 vxres = GETVXRES(ops->p->scrollmode, info);
> > > > -
> > > > - area.sx = vxres - ((sy + height) * vc->vc_font.height);
> > > > - area.sy = sx * vc->vc_font.width;
> > > > - area.dx = vxres - ((dy + height) * vc->vc_font.height);
> > > > - area.dy = dx * vc->vc_font.width;
> > > > - area.width = height * vc->vc_font.height;
> > > > - area.height = width * vc->vc_font.width;
> > > > -
> > > > - info->fbops->fb_copyarea(info, &area);
> > > > -}
> > > > -
> > > > static void cw_clear(struct vc_data *vc, struct fb_info *info, int sy,
> > > > int sx, int height, int width)
> > > > {
> > > > - struct fbcon_ops *ops = info->fbcon_par;
> > > > struct fb_fillrect region;
> > > > int bgshift = (vc->vc_hi_font_mask) ? 13 : 12;
> > > > - u32 vxres = GETVXRES(ops->p->scrollmode, info);
> > > > + u32 vxres = info->var.xres;
> > > > region.color = attr_bgcol_ec(bgshift,vc,info);
> > > > region.dx = vxres - ((sy + height) * vc->vc_font.height);
> > > > @@ -125,7 +106,7 @@ static void cw_putcs(struct vc_data *vc, struct fb_info *info,
> > > > u32 cnt, pitch, size;
> > > > u32 attribute = get_attribute(info, scr_readw(s));
> > > > u8 *dst, *buf = NULL;
> > > > - u32 vxres = GETVXRES(ops->p->scrollmode, info);
> > > > + u32 vxres = info->var.xres;
> > > > if (!ops->fontbuffer)
> > > > return;
> > > > @@ -212,7 +193,7 @@ static void cw_cursor(struct vc_data *vc, struct fb_info *info, int mode,
> > > > int attribute, use_sw = vc->vc_cursor_type & CUR_SW;
> > > > int err = 1, dx, dy;
> > > > char *src;
> > > > - u32 vxres = GETVXRES(ops->p->scrollmode, info);
> > > > + u32 vxres = info->var.xres;
> > > > if (!ops->fontbuffer)
> > > > return;
> > > > @@ -369,7 +350,7 @@ static void cw_cursor(struct vc_data *vc, struct fb_info *info, int mode,
> > > > static int cw_update_start(struct fb_info *info)
> > > > {
> > > > struct fbcon_ops *ops = info->fbcon_par;
> > > > - u32 vxres = GETVXRES(ops->p->scrollmode, info);
> > > > + u32 vxres = info->var.xres;
> > > > u32 xoffset;
> > > > int err;
> > > > @@ -385,7 +366,6 @@ static int cw_update_start(struct fb_info *info)
> > > > void fbcon_rotate_cw(struct fbcon_ops *ops)
> > > > {
> > > > - ops->bmove = cw_bmove;
> > > > ops->clear = cw_clear;
> > > > ops->putcs = cw_putcs;
> > > > ops->clear_margins = cw_clear_margins;
> > > > diff --git a/drivers/video/fbdev/core/fbcon_rotate.h b/drivers/video/fbdev/core/fbcon_rotate.h
> > > > index e233444cda66..b528b2e54283 100644
> > > > --- a/drivers/video/fbdev/core/fbcon_rotate.h
> > > > +++ b/drivers/video/fbdev/core/fbcon_rotate.h
> > > > @@ -11,15 +11,6 @@
> > > > #ifndef _FBCON_ROTATE_H
> > > > #define _FBCON_ROTATE_H
> > > > -#define GETVYRES(s,i) ({ \
> > > > - (s == SCROLL_REDRAW || s == SCROLL_MOVE) ? \
> > > > - (i)->var.yres : (i)->var.yres_virtual; })
> > > > -
> > > > -#define GETVXRES(s,i) ({ \
> > > > - (s == SCROLL_REDRAW || s == SCROLL_MOVE || !(i)->fix.xpanstep) ? \
> > > > - (i)->var.xres : (i)->var.xres_virtual; })
> > > > -
> > > > -
> > > > static inline int pattern_test_bit(u32 x, u32 y, u32 pitch, const char *pat)
> > > > {
> > > > u32 tmp = (y * pitch) + x, index = tmp / 8, bit = tmp % 8;
> > > > diff --git a/drivers/video/fbdev/core/fbcon_ud.c b/drivers/video/fbdev/core/fbcon_ud.c
> > > > index 8d5e66b1bdfb..09619bd8e021 100644
> > > > --- a/drivers/video/fbdev/core/fbcon_ud.c
> > > > +++ b/drivers/video/fbdev/core/fbcon_ud.c
> > > > @@ -44,33 +44,13 @@ static void ud_update_attr(u8 *dst, u8 *src, int attribute,
> > > > }
> > > > }
> > > > -
> > > > -static void ud_bmove(struct vc_data *vc, struct fb_info *info, int sy,
> > > > - int sx, int dy, int dx, int height, int width)
> > > > -{
> > > > - struct fbcon_ops *ops = info->fbcon_par;
> > > > - struct fb_copyarea area;
> > > > - u32 vyres = GETVYRES(ops->p->scrollmode, info);
> > > > - u32 vxres = GETVXRES(ops->p->scrollmode, info);
> > > > -
> > > > - area.sy = vyres - ((sy + height) * vc->vc_font.height);
> > > > - area.sx = vxres - ((sx + width) * vc->vc_font.width);
> > > > - area.dy = vyres - ((dy + height) * vc->vc_font.height);
> > > > - area.dx = vxres - ((dx + width) * vc->vc_font.width);
> > > > - area.height = height * vc->vc_font.height;
> > > > - area.width = width * vc->vc_font.width;
> > > > -
> > > > - info->fbops->fb_copyarea(info, &area);
> > > > -}
> > > > -
> > > > static void ud_clear(struct vc_data *vc, struct fb_info *info, int sy,
> > > > int sx, int height, int width)
> > > > {
> > > > - struct fbcon_ops *ops = info->fbcon_par;
> > > > struct fb_fillrect region;
> > > > int bgshift = (vc->vc_hi_font_mask) ? 13 : 12;
> > > > - u32 vyres = GETVYRES(ops->p->scrollmode, info);
> > > > - u32 vxres = GETVXRES(ops->p->scrollmode, info);
> > > > + u32 vyres = info->var.yres;
> > > > + u32 vxres = info->var.xres;
> > > > region.color = attr_bgcol_ec(bgshift,vc,info);
> > > > region.dy = vyres - ((sy + height) * vc->vc_font.height);
> > > > @@ -162,8 +142,8 @@ static void ud_putcs(struct vc_data *vc, struct fb_info *info,
> > > > u32 mod = vc->vc_font.width % 8, cnt, pitch, size;
> > > > u32 attribute = get_attribute(info, scr_readw(s));
> > > > u8 *dst, *buf = NULL;
> > > > - u32 vyres = GETVYRES(ops->p->scrollmode, info);
> > > > - u32 vxres = GETVXRES(ops->p->scrollmode, info);
> > > > + u32 vyres = info->var.yres;
> > > > + u32 vxres = info->var.xres;
> > > > if (!ops->fontbuffer)
> > > > return;
> > > > @@ -259,8 +239,8 @@ static void ud_cursor(struct vc_data *vc, struct fb_info *info, int mode,
> > > > int attribute, use_sw = vc->vc_cursor_type & CUR_SW;
> > > > int err = 1, dx, dy;
> > > > char *src;
> > > > - u32 vyres = GETVYRES(ops->p->scrollmode, info);
> > > > - u32 vxres = GETVXRES(ops->p->scrollmode, info);
> > > > + u32 vyres = info->var.yres;
> > > > + u32 vxres = info->var.xres;
> > > > if (!ops->fontbuffer)
> > > > return;
> > > > @@ -410,8 +390,8 @@ static int ud_update_start(struct fb_info *info)
> > > > {
> > > > struct fbcon_ops *ops = info->fbcon_par;
> > > > int xoffset, yoffset;
> > > > - u32 vyres = GETVYRES(ops->p->scrollmode, info);
> > > > - u32 vxres = GETVXRES(ops->p->scrollmode, info);
> > > > + u32 vyres = info->var.yres;
> > > > + u32 vxres = info->var.xres;
> > > > int err;
> > > > xoffset = vxres - info->var.xres - ops->var.xoffset;
> > > > @@ -429,7 +409,6 @@ static int ud_update_start(struct fb_info *info)
> > > > void fbcon_rotate_ud(struct fbcon_ops *ops)
> > > > {
> > > > - ops->bmove = ud_bmove;
> > > > ops->clear = ud_clear;
> > > > ops->putcs = ud_putcs;
> > > > ops->clear_margins = ud_clear_margins;
> > > > diff --git a/drivers/video/fbdev/core/tileblit.c b/drivers/video/fbdev/core/tileblit.c
> > > > index 2768eff247ba..72af95053bcb 100644
> > > > --- a/drivers/video/fbdev/core/tileblit.c
> > > > +++ b/drivers/video/fbdev/core/tileblit.c
> > > > @@ -16,21 +16,6 @@
> > > > #include <asm/types.h>
> > > > #include "fbcon.h"
> > > > -static void tile_bmove(struct vc_data *vc, struct fb_info *info, int sy,
> > > > - int sx, int dy, int dx, int height, int width)
> > > > -{
> > > > - struct fb_tilearea area;
> > > > -
> > > > - area.sx = sx;
> > > > - area.sy = sy;
> > > > - area.dx = dx;
> > > > - area.dy = dy;
> > > > - area.height = height;
> > > > - area.width = width;
> > > > -
> > > > - info->tileops->fb_tilecopy(info, &area);
> > > > -}
> > > > -
> > > > static void tile_clear(struct vc_data *vc, struct fb_info *info, int sy,
> > > > int sx, int height, int width)
> > > > {
> > > > @@ -133,7 +118,6 @@ void fbcon_set_tileops(struct vc_data *vc, struct fb_info *info)
> > > > struct fb_tilemap map;
> > > > struct fbcon_ops *ops = info->fbcon_par;
> > > > - ops->bmove = tile_bmove;
> > > > ops->clear = tile_clear;
> > > > ops->putcs = tile_putcs;
> > > > ops->clear_margins = tile_clear_margins;
> > > > diff --git a/drivers/video/fbdev/skeletonfb.c b/drivers/video/fbdev/skeletonfb.c
> > > > index bcacfb6934fa..0fe922f726e9 100644
> > > > --- a/drivers/video/fbdev/skeletonfb.c
> > > > +++ b/drivers/video/fbdev/skeletonfb.c
> > > > @@ -505,15 +505,15 @@ void xxxfb_fillrect(struct fb_info *p, const struct fb_fillrect *region)
> > > > }
> > > > /**
> > > > - * xxxfb_copyarea - REQUIRED function. Can use generic routines if
> > > > - * non acclerated hardware and packed pixel based.
> > > > + * xxxfb_copyarea - OBSOLETE function.
> > > > * Copies one area of the screen to another area.
> > > > + * Will be deleted in a future version
> > > > *
> > > > * @info: frame buffer structure that represents a single frame buffer
> > > > * @area: Structure providing the data to copy the framebuffer contents
> > > > * from one region to another.
> > > > *
> > > > - * This drawing operation copies a rectangular area from one area of the
> > > > + * This drawing operation copied a rectangular area from one area of the
> > > > * screen to another area.
> > > > */
> > > > void xxxfb_copyarea(struct fb_info *p, const struct fb_copyarea *area)
> > > > @@ -645,9 +645,9 @@ static const struct fb_ops xxxfb_ops = {
> > > > .fb_setcolreg = xxxfb_setcolreg,
> > > > .fb_blank = xxxfb_blank,
> > > > .fb_pan_display = xxxfb_pan_display,
> > > > - .fb_fillrect = xxxfb_fillrect, /* Needed !!! */
> > > > - .fb_copyarea = xxxfb_copyarea, /* Needed !!! */
> > > > - .fb_imageblit = xxxfb_imageblit, /* Needed !!! */
> > > > + .fb_fillrect = xxxfb_fillrect, /* Needed !!! */
> > > > + .fb_copyarea = xxxfb_copyarea, /* Obsolete */
> > > > + .fb_imageblit = xxxfb_imageblit, /* Needed !!! */
> > > > .fb_cursor = xxxfb_cursor, /* Optional !!! */
> > > > .fb_sync = xxxfb_sync,
> > > > .fb_ioctl = xxxfb_ioctl,
> > > > diff --git a/include/linux/fb.h b/include/linux/fb.h
> > > > index 5950f8f5dc74..6f3db99ab990 100644
> > > > --- a/include/linux/fb.h
> > > > +++ b/include/linux/fb.h
> > > > @@ -262,7 +262,7 @@ struct fb_ops {
> > > > /* Draws a rectangle */
> > > > void (*fb_fillrect) (struct fb_info *info, const struct fb_fillrect *rect);
> > > > - /* Copy data from area to another */
> > > > + /* Copy data from area to another. Obsolete. */
> > > > void (*fb_copyarea) (struct fb_info *info, const struct fb_copyarea *region);
> > > > /* Draws a image to the display */
> > > > void (*fb_imageblit) (struct fb_info *info, const struct fb_image *image);
> > > >
> > > >
> > > >
> > >
> > > --
> > > Thomas Zimmermann
> > > Graphics Driver Developer
> > > SUSE Software Solutions Germany GmbH
> > > Maxfeldstr. 5, 90409 Nürnberg, Germany
> > > (HRB 36809, AG Nürnberg)
> > > Geschäftsführer: Felix Imendörffer
> >
> >
> >
> >
> >
> >
>
> --
> Thomas Zimmermann
> Graphics Driver Developer
> SUSE Software Solutions Germany GmbH
> Maxfeldstr. 5, 90409 Nürnberg, Germany
> (HRB 36809, AG Nürnberg)
> Geschäftsführer: Felix Imendörffer
prev parent reply other threads:[~2021-10-14 7:55 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-30 15:10 [PATCH] fbdev: Garbage collect fbdev scrolling acceleration, part 1 (from TODO list) Claudio
2021-10-01 8:21 ` Thomas Zimmermann
2021-10-01 12:48 ` Claudio Suarez
2021-10-13 14:08 ` Thomas Zimmermann
2021-10-14 7:55 ` Claudio Suarez [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=YWfieCF7ptwG/SMt@gineta.localdomain \
--to=cssk@net-c.es \
--cc=daniel@ffwll.ch \
--cc=dri-devel@lists.freedesktop.org \
--cc=linux-fbdev@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=tzimmermann@suse.de \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).