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path: root/drivers/video/fbdev
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-rw-r--r--drivers/video/fbdev/core/bitblit.c16
-rw-r--r--drivers/video/fbdev/core/fbcon.c554
-rw-r--r--drivers/video/fbdev/core/fbcon.h72
-rw-r--r--drivers/video/fbdev/core/fbcon_ccw.c28
-rw-r--r--drivers/video/fbdev/core/fbcon_cw.c28
-rw-r--r--drivers/video/fbdev/core/fbcon_rotate.h9
-rw-r--r--drivers/video/fbdev/core/fbcon_ud.c37
-rw-r--r--drivers/video/fbdev/core/fbmem.c2
-rw-r--r--drivers/video/fbdev/core/tileblit.c16
-rw-r--r--drivers/video/fbdev/hyperv_fb.c16
-rw-r--r--drivers/video/fbdev/skeletonfb.c12
11 files changed, 735 insertions, 55 deletions
diff --git a/drivers/video/fbdev/core/bitblit.c b/drivers/video/fbdev/core/bitblit.c
index 01fae2c96965..f98e8f298bc1 100644
--- a/drivers/video/fbdev/core/bitblit.c
+++ b/drivers/video/fbdev/core/bitblit.c
@@ -43,6 +43,21 @@ 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)
{
@@ -378,6 +393,7 @@ 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 99ecd9a6d844..2fc1b80a26ad 100644
--- a/drivers/video/fbdev/core/fbcon.c
+++ b/drivers/video/fbdev/core/fbcon.c
@@ -173,6 +173,8 @@ 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);
@@ -180,8 +182,16 @@ 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);
@@ -1125,6 +1135,14 @@ static void fbcon_init(struct vc_data *vc, int init)
ops->graphics = 0;
+#ifdef CONFIG_FRAMEBUFFER_CONSOLE_LEGACY_ACCELERATION
+ if ((info->flags & FBINFO_HWACCEL_COPYAREA) &&
+ !(info->flags & FBINFO_HWACCEL_DISABLED))
+ p->scrollmode = SCROLL_MOVE;
+ else /* default to something safe */
+ p->scrollmode = SCROLL_REDRAW;
+#endif
+
/*
* ++guenther: console.c:vc_allocate() relies on initializing
* vc_{cols,rows}, but we must not set those if we are only
@@ -1211,13 +1229,14 @@ finished:
* This system is now divided into two levels because of complications
* caused by hardware scrolling. Top level functions:
*
- * fbcon_clear(), fbcon_putc(), fbcon_clear_margins()
+ * fbcon_bmove(), 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
*
@@ -1390,6 +1409,224 @@ 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)
{
@@ -1450,6 +1687,7 @@ 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;
@@ -1466,32 +1704,291 @@ 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;
- 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;
+ if (logo_shown >= 0)
+ goto redraw_up;
+ switch (fb_scrollmode(p)) {
+ 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;
case SM_DOWN:
if (count > vc->vc_rows) /* Maximum realistic size */
count = vc->vc_rows;
- 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;
+ if (logo_shown >= 0)
+ goto redraw_down;
+ switch (fb_scrollmode(p)) {
+ 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;
+ }
}
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_accel(struct fbcon_display *p,
+ struct fb_info *info,
+ struct vc_data *vc)
+{
+#ifdef CONFIG_FRAMEBUFFER_CONSOLE_LEGACY_ACCELERATION
+ struct fbcon_ops *ops = info->fbcon_par;
+ int cap = info->flags;
+ u16 t = 0;
+ int ypan = FBCON_SWAP(ops->rotate, info->fix.ypanstep,
+ info->fix.xpanstep);
+ int ywrap = FBCON_SWAP(ops->rotate, info->fix.ywrapstep, t);
+ int yres = FBCON_SWAP(ops->rotate, info->var.yres, info->var.xres);
+ int vyres = FBCON_SWAP(ops->rotate, info->var.yres_virtual,
+ info->var.xres_virtual);
+ int good_pan = (cap & FBINFO_HWACCEL_YPAN) &&
+ divides(ypan, vc->vc_font.height) && vyres > yres;
+ int good_wrap = (cap & FBINFO_HWACCEL_YWRAP) &&
+ divides(ywrap, vc->vc_font.height) &&
+ divides(vc->vc_font.height, vyres) &&
+ divides(vc->vc_font.height, yres);
+ int reading_fast = cap & FBINFO_READS_FAST;
+ int fast_copyarea = (cap & FBINFO_HWACCEL_COPYAREA) &&
+ !(cap & FBINFO_HWACCEL_DISABLED);
+ int fast_imageblit = (cap & FBINFO_HWACCEL_IMAGEBLIT) &&
+ !(cap & FBINFO_HWACCEL_DISABLED);
+
+ if (good_wrap || good_pan) {
+ if (reading_fast || fast_copyarea)
+ p->scrollmode = good_wrap ?
+ SCROLL_WRAP_MOVE : SCROLL_PAN_MOVE;
+ else
+ p->scrollmode = good_wrap ? SCROLL_REDRAW :
+ SCROLL_PAN_REDRAW;
+ } else {
+ if (reading_fast || (fast_copyarea && !fast_imageblit))
+ p->scrollmode = SCROLL_MOVE;
+ else
+ p->scrollmode = SCROLL_REDRAW;
+ }
+#endif
+}
+
static void updatescrollmode(struct fbcon_display *p,
struct fb_info *info,
struct vc_data *vc)
@@ -1507,6 +2004,9 @@ static void updatescrollmode(struct fbcon_display *p,
p->vrows -= (yres - (fh * vc->vc_rows)) / fh;
if ((yres % fh) && (vyres % fh < yres % fh))
p->vrows--;
+
+ /* update scrollmode in case hardware acceleration is used */
+ updatescrollmode_accel(p, info, vc);
}
#define PITCH(w) (((w) + 7) >> 3)
@@ -1664,7 +2164,21 @@ static int fbcon_switch(struct vc_data *vc)
updatescrollmode(p, info, vc);
- scrollback_phys_max = 0;
+ switch (fb_scrollmode(p)) {
+ 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_max = 0;
scrollback_current = 0;
diff --git a/drivers/video/fbdev/core/fbcon.h b/drivers/video/fbdev/core/fbcon.h
index a00603b4451a..969d41ecede5 100644
--- a/drivers/video/fbdev/core/fbcon.h
+++ b/drivers/video/fbdev/core/fbcon.h
@@ -29,6 +29,9 @@ struct fbcon_display {
/* Filled in by the low-level console driver */
const u_char *fontdata;
int userfont; /* != 0 if fontdata kmalloc()ed */
+#ifdef CONFIG_FRAMEBUFFER_CONSOLE_LEGACY_ACCELERATION
+ u_short scrollmode; /* Scroll Method, use fb_scrollmode() */
+#endif
u_short inverse; /* != 0 text black on white as default */
short yscroll; /* Hardware scrolling */
int vrows; /* number of virtual rows */
@@ -51,6 +54,8 @@ 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,
@@ -149,6 +154,73 @@ 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
+
+static inline u_short fb_scrollmode(struct fbcon_display *fb)
+{
+#ifdef CONFIG_FRAMEBUFFER_CONSOLE_LEGACY_ACCELERATION
+ return fb->scrollmode;
+#else
+ /* hardcoded to SCROLL_REDRAW if acceleration was disabled. */
+ return SCROLL_REDRAW;
+#endif
+}
+
+
#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 ffa78936eaab..2789ace79634 100644
--- a/drivers/video/fbdev/core/fbcon_ccw.c
+++ b/drivers/video/fbdev/core/fbcon_ccw.c
@@ -59,12 +59,31 @@ 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, 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 = info->var.yres;
+ u32 vyres = GETVYRES(ops->p, info);
region.color = attr_bgcol_ec(bgshift,vc,info);
region.dx = sy * vc->vc_font.height;
@@ -121,7 +140,7 @@ 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 = info->var.yres;
+ u32 vyres = GETVYRES(ops->p, info);
if (!ops->fontbuffer)
return;
@@ -210,7 +229,7 @@ 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 = info->var.yres;
+ u32 vyres = GETVYRES(ops->p, info);
if (!ops->fontbuffer)
return;
@@ -368,7 +387,7 @@ static int ccw_update_start(struct fb_info *info)
{
struct fbcon_ops *ops = info->fbcon_par;
u32 yoffset;
- u32 vyres = info->var.yres;
+ u32 vyres = GETVYRES(ops->p, info);
int err;
yoffset = (vyres - info->var.yres) - ops->var.xoffset;
@@ -383,6 +402,7 @@ 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 92e5b7fb51ee..86a254c1b2b7 100644
--- a/drivers/video/fbdev/core/fbcon_cw.c
+++ b/drivers/video/fbdev/core/fbcon_cw.c
@@ -44,12 +44,31 @@ 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, 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 = info->var.xres;
+ u32 vxres = GETVXRES(ops->p, info);
region.color = attr_bgcol_ec(bgshift,vc,info);
region.dx = vxres - ((sy + height) * vc->vc_font.height);
@@ -106,7 +125,7 @@ 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 = info->var.xres;
+ u32 vxres = GETVXRES(ops->p, info);
if (!ops->fontbuffer)
return;
@@ -193,7 +212,7 @@ 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 = info->var.xres;
+ u32 vxres = GETVXRES(ops->p, info);
if (!ops->fontbuffer)
return;
@@ -350,7 +369,7 @@ 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 = info->var.xres;
+ u32 vxres = GETVXRES(ops->p, info);
u32 xoffset;
int err;
@@ -366,6 +385,7 @@ 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 b528b2e54283..01cbe303b8a2 100644
--- a/drivers/video/fbdev/core/fbcon_rotate.h
+++ b/drivers/video/fbdev/core/fbcon_rotate.h
@@ -11,6 +11,15 @@
#ifndef _FBCON_ROTATE_H
#define _FBCON_ROTATE_H
+#define GETVYRES(s,i) ({ \
+ (fb_scrollmode(s) == SCROLL_REDRAW || fb_scrollmode(s) == SCROLL_MOVE) ? \
+ (i)->var.yres : (i)->var.yres_virtual; })
+
+#define GETVXRES(s,i) ({ \
+ (fb_scrollmode(s) == SCROLL_REDRAW || fb_scrollmode(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 09619bd8e021..23bc045769d0 100644
--- a/drivers/video/fbdev/core/fbcon_ud.c
+++ b/drivers/video/fbdev/core/fbcon_ud.c
@@ -44,13 +44,33 @@ 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, info);
+ u32 vxres = GETVXRES(ops->p, 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 = info->var.yres;
- u32 vxres = info->var.xres;
+ u32 vyres = GETVYRES(ops->p, info);
+ u32 vxres = GETVXRES(ops->p, info);
region.color = attr_bgcol_ec(bgshift,vc,info);
region.dy = vyres - ((sy + height) * vc->vc_font.height);
@@ -142,8 +162,8 @@ 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 = info->var.yres;
- u32 vxres = info->var.xres;
+ u32 vyres = GETVYRES(ops->p, info);
+ u32 vxres = GETVXRES(ops->p, info);
if (!ops->fontbuffer)
return;
@@ -239,8 +259,8 @@ 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 = info->var.yres;
- u32 vxres = info->var.xres;
+ u32 vyres = GETVYRES(ops->p, info);
+ u32 vxres = GETVXRES(ops->p, info);
if (!ops->fontbuffer)
return;
@@ -390,8 +410,8 @@ static int ud_update_start(struct fb_info *info)
{
struct fbcon_ops *ops = info->fbcon_par;
int xoffset, yoffset;
- u32 vyres = info->var.yres;
- u32 vxres = info->var.xres;
+ u32 vyres = GETVYRES(ops->p, info);
+ u32 vxres = GETVXRES(ops->p, info);
int err;
xoffset = vxres - info->var.xres - ops->var.xoffset;
@@ -409,6 +429,7 @@ 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/fbmem.c b/drivers/video/fbdev/core/fbmem.c
index 0fa7ede94fa6..13083ad8d751 100644
--- a/drivers/video/fbdev/core/fbmem.c
+++ b/drivers/video/fbdev/core/fbmem.c
@@ -1160,6 +1160,8 @@ static long do_fb_ioctl(struct fb_info *info, unsigned int cmd,
ret = fbcon_set_con2fb_map_ioctl(argp);
break;
case FBIOBLANK:
+ if (arg > FB_BLANK_POWERDOWN)
+ return -EINVAL;
console_lock();
lock_fb_info(info);
ret = fb_blank(info, arg);
diff --git a/drivers/video/fbdev/core/tileblit.c b/drivers/video/fbdev/core/tileblit.c
index 72af95053bcb..2768eff247ba 100644
--- a/drivers/video/fbdev/core/tileblit.c
+++ b/drivers/video/fbdev/core/tileblit.c
@@ -16,6 +16,21 @@
#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)
{
@@ -118,6 +133,7 @@ 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/hyperv_fb.c b/drivers/video/fbdev/hyperv_fb.c
index 23999df52739..c8e0ea27caf1 100644
--- a/drivers/video/fbdev/hyperv_fb.c
+++ b/drivers/video/fbdev/hyperv_fb.c
@@ -287,8 +287,6 @@ struct hvfb_par {
static uint screen_width = HVFB_WIDTH;
static uint screen_height = HVFB_HEIGHT;
-static uint screen_width_max = HVFB_WIDTH;
-static uint screen_height_max = HVFB_HEIGHT;
static uint screen_depth;
static uint screen_fb_size;
static uint dio_fb_size; /* FB size for deferred IO */
@@ -582,7 +580,6 @@ static int synthvid_get_supported_resolution(struct hv_device *hdev)
int ret = 0;
unsigned long t;
u8 index;
- int i;
memset(msg, 0, sizeof(struct synthvid_msg));
msg->vid_hdr.type = SYNTHVID_RESOLUTION_REQUEST;
@@ -613,13 +610,6 @@ static int synthvid_get_supported_resolution(struct hv_device *hdev)
goto out;
}
- for (i = 0; i < msg->resolution_resp.resolution_count; i++) {
- screen_width_max = max_t(unsigned int, screen_width_max,
- msg->resolution_resp.supported_resolution[i].width);
- screen_height_max = max_t(unsigned int, screen_height_max,
- msg->resolution_resp.supported_resolution[i].height);
- }
-
screen_width =
msg->resolution_resp.supported_resolution[index].width;
screen_height =
@@ -941,7 +931,7 @@ static void hvfb_get_option(struct fb_info *info)
if (x < HVFB_WIDTH_MIN || y < HVFB_HEIGHT_MIN ||
(synthvid_ver_ge(par->synthvid_version, SYNTHVID_VERSION_WIN10) &&
- (x > screen_width_max || y > screen_height_max)) ||
+ (x * y * screen_depth / 8 > screen_fb_size)) ||
(par->synthvid_version == SYNTHVID_VERSION_WIN8 &&
x * y * screen_depth / 8 > SYNTHVID_FB_SIZE_WIN8) ||
(par->synthvid_version == SYNTHVID_VERSION_WIN7 &&
@@ -1194,8 +1184,8 @@ static int hvfb_probe(struct hv_device *hdev,
}
hvfb_get_option(info);
- pr_info("Screen resolution: %dx%d, Color depth: %d\n",
- screen_width, screen_height, screen_depth);
+ pr_info("Screen resolution: %dx%d, Color depth: %d, Frame buffer size: %d\n",
+ screen_width, screen_height, screen_depth, screen_fb_size);
ret = hvfb_getmem(hdev, info);
if (ret) {
diff --git a/drivers/video/fbdev/skeletonfb.c b/drivers/video/fbdev/skeletonfb.c
index 0fe922f726e9..bcacfb6934fa 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 - OBSOLETE function.
+ * xxxfb_copyarea - REQUIRED function. Can use generic routines if
+ * non acclerated hardware and packed pixel based.
* 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 copied a rectangular area from one area of the
+ * This drawing operation copies 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, /* Obsolete */
- .fb_imageblit = xxxfb_imageblit, /* Needed !!! */
+ .fb_fillrect = xxxfb_fillrect, /* Needed !!! */
+ .fb_copyarea = xxxfb_copyarea, /* Needed !!! */
+ .fb_imageblit = xxxfb_imageblit, /* Needed !!! */
.fb_cursor = xxxfb_cursor, /* Optional !!! */
.fb_sync = xxxfb_sync,
.fb_ioctl = xxxfb_ioctl,
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-03 09:26:23 +0300