Merge branch 'for_paulus' of master.kernel.org:/pub/scm/linux/kernel/git/galak/powerpc

[pandora-kernel.git] / drivers / video / console / vgacon.c

diff --git a/drivers/video/console/vgacon.c b/drivers/video/console/vgacon.c
index d5a04b6..f32b590 100644 (file)
--- a/drivers/video/console/vgacon.c
+++ b/drivers/video/console/vgacon.c
@@ -114,6 +114,7 @@ static int          vga_512_chars;
 static int             vga_video_font_height;
 static int             vga_scan_lines;
 static unsigned int    vga_rolled_over = 0;
+static int              vga_init_done;
 
 static int __init no_scroll(char *str)
 {
@@ -190,7 +191,7 @@ static void vgacon_scrollback_init(int pitch)
        }
 }
 
-static void __init vgacon_scrollback_startup(void)
+static void vgacon_scrollback_startup(void)
 {
        vgacon_scrollback = alloc_bootmem(CONFIG_VGACON_SOFT_SCROLLBACK_SIZE
                                          * 1024);
@@ -355,7 +356,7 @@ static int vgacon_scrolldelta(struct vc_data *c, int lines)
 }
 #endif /* CONFIG_VGACON_SOFT_SCROLLBACK */
 
-static const char __init *vgacon_startup(void)
+static const char *vgacon_startup(void)
 {
        const char *display_desc = NULL;
        u16 saved1, saved2;
@@ -391,7 +392,7 @@ static const char __init *vgacon_startup(void)
                        static struct resource ega_console_resource =
                            { "ega", 0x3B0, 0x3BF };
                        vga_video_type = VIDEO_TYPE_EGAM;
-                       vga_vram_end = 0xb8000;
+                       vga_vram_size = 0x8000;
                        display_desc = "EGA+";
                        request_resource(&ioport_resource,
                                         &ega_console_resource);
@@ -401,7 +402,7 @@ static const char __init *vgacon_startup(void)
                        static struct resource mda2_console_resource =
                            { "mda", 0x3BF, 0x3BF };
                        vga_video_type = VIDEO_TYPE_MDA;
-                       vga_vram_end = 0xb2000;
+                       vga_vram_size = 0x2000;
                        display_desc = "*MDA";
                        request_resource(&ioport_resource,
                                         &mda1_console_resource);
@@ -418,7 +419,7 @@ static const char __init *vgacon_startup(void)
                if ((ORIG_VIDEO_EGA_BX & 0xff) != 0x10) {
                        int i;
 
-                       vga_vram_end = 0xc0000;
+                       vga_vram_size = 0x8000;
 
                        if (!ORIG_VIDEO_ISVGA) {
                                static struct resource ega_console_resource
@@ -443,7 +444,7 @@ static const char __init *vgacon_startup(void)
                                 * and COE=1 isn't necessarily a good idea)
                                 */
                                vga_vram_base = 0xa0000;
-                               vga_vram_end = 0xb0000;
+                               vga_vram_size = 0x10000;
                                outb_p(6, VGA_GFX_I);
                                outb_p(6, VGA_GFX_D);
 #endif
@@ -475,7 +476,7 @@ static const char __init *vgacon_startup(void)
                        static struct resource cga_console_resource =
                            { "cga", 0x3D4, 0x3D5 };
                        vga_video_type = VIDEO_TYPE_CGA;
-                       vga_vram_end = 0xba000;
+                       vga_vram_size = 0x2000;
                        display_desc = "*CGA";
                        request_resource(&ioport_resource,
                                         &cga_console_resource);
@@ -483,9 +484,8 @@ static const char __init *vgacon_startup(void)
                }
        }
 
-       vga_vram_base = VGA_MAP_MEM(vga_vram_base);
-       vga_vram_end = VGA_MAP_MEM(vga_vram_end);
-       vga_vram_size = vga_vram_end - vga_vram_base;
+       vga_vram_base = VGA_MAP_MEM(vga_vram_base, vga_vram_size);
+       vga_vram_end = vga_vram_base + vga_vram_size;
 
        /*
         *      Find out if there is a graphics card present.
@@ -524,7 +524,12 @@ static const char __init *vgacon_startup(void)
 
        vgacon_xres = ORIG_VIDEO_COLS * VGA_FONTWIDTH;
        vgacon_yres = vga_scan_lines;
-       vgacon_scrollback_startup();
+
+       if (!vga_init_done) {
+               vgacon_scrollback_startup();
+               vga_init_done = 1;
+       }
+
        return display_desc;
 }
 
@@ -532,10 +537,20 @@ static void vgacon_init(struct vc_data *c, int init)
 {
        unsigned long p;
 
-       /* We cannot be loaded as a module, therefore init is always 1 */
+       /*
+        * We cannot be loaded as a module, therefore init is always 1,
+        * but vgacon_init can be called more than once, and init will
+        * not be 1.
+        */
        c->vc_can_do_color = vga_can_do_color;
-       c->vc_cols = vga_video_num_columns;
-       c->vc_rows = vga_video_num_lines;
+
+       /* set dimensions manually if init != 0 since vc_resize() will fail */
+       if (init) {
+               c->vc_cols = vga_video_num_columns;
+               c->vc_rows = vga_video_num_lines;
+       } else
+               vc_resize(c, vga_video_num_columns, vga_video_num_lines);
+
        c->vc_scan_lines = vga_scan_lines;
        c->vc_font.height = vga_video_font_height;
        c->vc_complement_mask = 0x7700;
@@ -1020,14 +1035,14 @@ static int vgacon_do_font_op(struct vgastate *state,char *arg,int set,int ch512)
        char *charmap;
        
        if (vga_video_type != VIDEO_TYPE_EGAM) {
-               charmap = (char *) VGA_MAP_MEM(colourmap);
+               charmap = (char *) VGA_MAP_MEM(colourmap, 0);
                beg = 0x0e;
 #ifdef VGA_CAN_DO_64KB
                if (vga_video_type == VIDEO_TYPE_VGAC)
                        beg = 0x06;
 #endif
        } else {
-               charmap = (char *) VGA_MAP_MEM(blackwmap);
+               charmap = (char *) VGA_MAP_MEM(blackwmap, 0);
                beg = 0x0a;
        }