@@ -115,7 +115,6 @@ CONFIG_FB_NVIDIA=y
CONFIG_FB_NVIDIA_I2C=y
CONFIG_FB_RADEON=y
# CONFIG_LCD_CLASS_DEVICE is not set
-CONFIG_VGACON_SOFT_SCROLLBACK=y
CONFIG_LOGO=y
CONFIG_SOUND=y
CONFIG_SND=y
@@ -797,7 +797,6 @@ CONFIG_FB_TRIDENT=m
CONFIG_FB_SM501=m
CONFIG_FB_IBM_GXT4500=y
CONFIG_LCD_PLATFORM=m
-CONFIG_VGACON_SOFT_SCROLLBACK=y
CONFIG_FRAMEBUFFER_CONSOLE=y
CONFIG_FRAMEBUFFER_CONSOLE_ROTATION=y
CONFIG_LOGO=y
@@ -218,7 +218,6 @@ CONFIG_FB_MODE_HELPERS=y
CONFIG_FB_TILEBLITTING=y
CONFIG_FB_EFI=y
# CONFIG_LCD_CLASS_DEVICE is not set
-CONFIG_VGACON_SOFT_SCROLLBACK=y
CONFIG_LOGO=y
# CONFIG_LOGO_LINUX_MONO is not set
# CONFIG_LOGO_LINUX_VGA16 is not set
@@ -212,7 +212,6 @@ CONFIG_FB_MODE_HELPERS=y
CONFIG_FB_TILEBLITTING=y
CONFIG_FB_EFI=y
# CONFIG_LCD_CLASS_DEVICE is not set
-CONFIG_VGACON_SOFT_SCROLLBACK=y
CONFIG_LOGO=y
# CONFIG_LOGO_LINUX_MONO is not set
# CONFIG_LOGO_LINUX_VGA16 is not set
@@ -22,31 +22,6 @@ config VGA_CONSOLE
Say Y.
-config VGACON_SOFT_SCROLLBACK
- bool "Enable Scrollback Buffer in System RAM"
- depends on VGA_CONSOLE
- default n
- help
- The scrollback buffer of the standard VGA console is located in
- the VGA RAM. The size of this RAM is fixed and is quite small.
- If you require a larger scrollback buffer, this can be placed in
- System RAM which is dynamically allocated during initialization.
- Placing the scrollback buffer in System RAM will slightly slow
- down the console.
-
- If you want this feature, say 'Y' here and enter the amount of
- RAM to allocate for this buffer. If unsure, say 'N'.
-
-config VGACON_SOFT_SCROLLBACK_SIZE
- int "Scrollback Buffer Size (in KB)"
- depends on VGACON_SOFT_SCROLLBACK
- range 1 1024
- default "64"
- help
- Enter the amount of System RAM to allocate for the scrollback
- buffer. Each 64KB will give you approximately 16 80x25
- screenfuls of scrollback buffer
-
config MDA_CONSOLE
depends on !M68K && !PARISC && ISA
tristate "MDA text console (dual-headed)"
@@ -180,159 +180,6 @@ static inline void vga_set_mem_top(struc
write_vga(12, (c->vc_visible_origin - vga_vram_base) / 2);
}
-#ifdef CONFIG_VGACON_SOFT_SCROLLBACK
-/* software scrollback */
-static void *vgacon_scrollback;
-static int vgacon_scrollback_tail;
-static int vgacon_scrollback_size;
-static int vgacon_scrollback_rows;
-static int vgacon_scrollback_cnt;
-static int vgacon_scrollback_cur;
-static int vgacon_scrollback_save;
-static int vgacon_scrollback_restore;
-
-static void vgacon_scrollback_init(int pitch)
-{
- int rows = CONFIG_VGACON_SOFT_SCROLLBACK_SIZE * 1024/pitch;
-
- if (vgacon_scrollback) {
- vgacon_scrollback_cnt = 0;
- vgacon_scrollback_tail = 0;
- vgacon_scrollback_cur = 0;
- vgacon_scrollback_rows = rows - 1;
- vgacon_scrollback_size = rows * pitch;
- }
-}
-
-static void vgacon_scrollback_startup(void)
-{
- vgacon_scrollback = kcalloc(CONFIG_VGACON_SOFT_SCROLLBACK_SIZE, 1024, GFP_NOWAIT);
- vgacon_scrollback_init(vga_video_num_columns * 2);
-}
-
-static void vgacon_scrollback_update(struct vc_data *c, int t, int count)
-{
- void *p;
-
- if (!vgacon_scrollback_size || c->vc_num != fg_console)
- return;
-
- p = (void *) (c->vc_origin + t * c->vc_size_row);
-
- while (count--) {
- if ((vgacon_scrollback_tail + c->vc_size_row) >
- vgacon_scrollback_size)
- vgacon_scrollback_tail = 0;
-
- scr_memcpyw(vgacon_scrollback + vgacon_scrollback_tail,
- p, c->vc_size_row);
- vgacon_scrollback_cnt++;
- p += c->vc_size_row;
- vgacon_scrollback_tail += c->vc_size_row;
-
- if (vgacon_scrollback_tail >= vgacon_scrollback_size)
- vgacon_scrollback_tail = 0;
-
- if (vgacon_scrollback_cnt > vgacon_scrollback_rows)
- vgacon_scrollback_cnt = vgacon_scrollback_rows;
-
- vgacon_scrollback_cur = vgacon_scrollback_cnt;
- }
-}
-
-static void vgacon_restore_screen(struct vc_data *c)
-{
- vgacon_scrollback_save = 0;
-
- if (!vga_is_gfx && !vgacon_scrollback_restore) {
- scr_memcpyw((u16 *) c->vc_origin, (u16 *) c->vc_screenbuf,
- c->vc_screenbuf_size > vga_vram_size ?
- vga_vram_size : c->vc_screenbuf_size);
- vgacon_scrollback_restore = 1;
- vgacon_scrollback_cur = vgacon_scrollback_cnt;
- }
-}
-
-static int vgacon_scrolldelta(struct vc_data *c, int lines)
-{
- int start, end, count, soff;
-
- if (!lines) {
- c->vc_visible_origin = c->vc_origin;
- vga_set_mem_top(c);
- return 1;
- }
-
- if (!vgacon_scrollback)
- return 1;
-
- if (!vgacon_scrollback_save) {
- vgacon_cursor(c, CM_ERASE);
- vgacon_save_screen(c);
- vgacon_scrollback_save = 1;
- }
-
- vgacon_scrollback_restore = 0;
- start = vgacon_scrollback_cur + lines;
- end = start + abs(lines);
-
- if (start < 0)
- start = 0;
-
- if (start > vgacon_scrollback_cnt)
- start = vgacon_scrollback_cnt;
-
- if (end < 0)
- end = 0;
-
- if (end > vgacon_scrollback_cnt)
- end = vgacon_scrollback_cnt;
-
- vgacon_scrollback_cur = start;
- count = end - start;
- soff = vgacon_scrollback_tail - ((vgacon_scrollback_cnt - end) *
- c->vc_size_row);
- soff -= count * c->vc_size_row;
-
- if (soff < 0)
- soff += vgacon_scrollback_size;
-
- count = vgacon_scrollback_cnt - start;
-
- if (count > c->vc_rows)
- count = c->vc_rows;
-
- if (count) {
- int copysize;
-
- int diff = c->vc_rows - count;
- void *d = (void *) c->vc_origin;
- void *s = (void *) c->vc_screenbuf;
-
- count *= c->vc_size_row;
- /* how much memory to end of buffer left? */
- copysize = min(count, vgacon_scrollback_size - soff);
- scr_memcpyw(d, vgacon_scrollback + soff, copysize);
- d += copysize;
- count -= copysize;
-
- if (count) {
- scr_memcpyw(d, vgacon_scrollback, count);
- d += count;
- }
-
- if (diff)
- scr_memcpyw(d, s, diff * c->vc_size_row);
- } else
- vgacon_cursor(c, CM_MOVE);
-
- return 1;
-}
-#else
-#define vgacon_scrollback_startup(...) do { } while (0)
-#define vgacon_scrollback_init(...) do { } while (0)
-#define vgacon_scrollback_update(...) do { } while (0)
-
static void vgacon_restore_screen(struct vc_data *c)
{
if (c->vc_origin != c->vc_visible_origin)
@@ -369,7 +216,6 @@ static int vgacon_scrolldelta(struct vc_
vga_set_mem_top(c);
return 1;
}
-#endif /* CONFIG_VGACON_SOFT_SCROLLBACK */
static const char *vgacon_startup(void)
{
@@ -566,10 +412,7 @@ static const char *vgacon_startup(void)
vgacon_xres = screen_info.orig_video_cols * VGA_FONTWIDTH;
vgacon_yres = vga_scan_lines;
- if (!vga_init_done) {
- vgacon_scrollback_startup();
- vga_init_done = 1;
- }
+ vga_init_done = 1;
return display_desc;
}
@@ -865,7 +708,6 @@ static int vgacon_switch(struct vc_data
vgacon_doresize(c, c->vc_cols, c->vc_rows);
}
- vgacon_scrollback_init(c->vc_size_row);
return 0; /* Redrawing not needed */
}
@@ -1398,7 +1240,6 @@ static int vgacon_scroll(struct vc_data
oldo = c->vc_origin;
delta = lines * c->vc_size_row;
if (dir == SM_UP) {
- vgacon_scrollback_update(c, t, lines);
if (c->vc_scr_end + delta >= vga_vram_end) {
scr_memcpyw((u16 *) vga_vram_base,
(u16 *) (oldo + delta),