diff options
Diffstat (limited to 'drivers/video/console/vgacon.c')
| -rw-r--r-- | drivers/video/console/vgacon.c | 35 |
1 files changed, 23 insertions, 12 deletions
diff --git a/drivers/video/console/vgacon.c b/drivers/video/console/vgacon.c index 5855d17d19a..6e6aa704fe8 100644 --- a/drivers/video/console/vgacon.c +++ b/drivers/video/console/vgacon.c @@ -42,6 +42,7 @@ #include <linux/kd.h> #include <linux/slab.h> #include <linux/vt_kern.h> +#include <linux/sched.h> #include <linux/selection.h> #include <linux/spinlock.h> #include <linux/ioport.h> @@ -86,7 +87,8 @@ static void vgacon_save_screen(struct vc_data *c); static int vgacon_scroll(struct vc_data *c, int t, int b, int dir, int lines); static void vgacon_invert_region(struct vc_data *c, u16 * p, int count); -static unsigned long vgacon_uni_pagedir[2]; +static struct uni_pagedir *vgacon_uni_pagedir; +static int vgacon_refcount; /* Description of the hardware situation */ static int vga_init_done __read_mostly; @@ -552,7 +554,7 @@ static const char *vgacon_startup(void) static void vgacon_init(struct vc_data *c, int init) { - unsigned long p; + struct uni_pagedir *p; /* * We cannot be loaded as a module, therefore init is always 1, @@ -574,12 +576,12 @@ static void vgacon_init(struct vc_data *c, int init) if (vga_512_chars) c->vc_hi_font_mask = 0x0800; p = *c->vc_uni_pagedir_loc; - if (c->vc_uni_pagedir_loc == &c->vc_uni_pagedir || - !--c->vc_uni_pagedir_loc[1]) + if (c->vc_uni_pagedir_loc != &vgacon_uni_pagedir) { con_free_unimap(c); - c->vc_uni_pagedir_loc = vgacon_uni_pagedir; - vgacon_uni_pagedir[1]++; - if (!vgacon_uni_pagedir[0] && p) + c->vc_uni_pagedir_loc = &vgacon_uni_pagedir; + vgacon_refcount++; + } + if (!vgacon_uni_pagedir && p) con_set_default_unimap(c); /* Only set the default if the user didn't deliberately override it */ @@ -596,7 +598,7 @@ static void vgacon_deinit(struct vc_data *c) vga_set_mem_top(c); } - if (!--vgacon_uni_pagedir[1]) + if (!--vgacon_refcount) con_free_unimap(c); c->vc_uni_pagedir_loc = &c->vc_uni_pagedir; con_set_default_unimap(c); @@ -1124,11 +1126,15 @@ static int vgacon_do_font_op(struct vgastate *state,char *arg,int set,int ch512) if (arg) { if (set) - for (i = 0; i < cmapsz; i++) + for (i = 0; i < cmapsz; i++) { vga_writeb(arg[i], charmap + i); + cond_resched(); + } else - for (i = 0; i < cmapsz; i++) + for (i = 0; i < cmapsz; i++) { arg[i] = vga_readb(charmap + i); + cond_resched(); + } /* * In 512-character mode, the character map is not contiguous if @@ -1139,11 +1145,15 @@ static int vgacon_do_font_op(struct vgastate *state,char *arg,int set,int ch512) charmap += 2 * cmapsz; arg += cmapsz; if (set) - for (i = 0; i < cmapsz; i++) + for (i = 0; i < cmapsz; i++) { vga_writeb(arg[i], charmap + i); + cond_resched(); + } else - for (i = 0; i < cmapsz; i++) + for (i = 0; i < cmapsz; i++) { arg[i] = vga_readb(charmap + i); + cond_resched(); + } } } @@ -1431,5 +1441,6 @@ const struct consw vga_con = { .con_build_attr = vgacon_build_attr, .con_invert_region = vgacon_invert_region, }; +EXPORT_SYMBOL(vga_con); MODULE_LICENSE("GPL"); |