fbcon: Increase maximum font width x height to 64 x 128

By using bitmaps we actually support whatever size we would want, but
the console currently limits fonts to 64x128 (which gives 60x16 text on
4k screens), so we don't need more for now, and we can easily increase
later.

Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Signed-off-by: Helge Deller <deller@gmx.de>

9 files changed, 66 insertions, 32 deletions

diff --git a/drivers/firmware/efi/earlycon.c b/drivers/firmware/efi/earlycon.c
index f80a9af3d16e..d18a1a5de144 100644
--- a/drivers/firmware/efi/earlycon.c
+++ b/drivers/firmware/efi/earlycon.c
@@ -252,7 +252,7 @@ static int __init efi_earlycon_setup(struct earlycon_device *device,
 	if (si->lfb_depth != 32)
 		return -ENODEV;
 
-	font = get_default_font(xres, yres, -1, -1);
+	font = get_default_font(xres, yres, NULL, NULL);
 	if (!font)
 		return -ENODEV;
 
diff --git a/drivers/video/fbdev/arkfb.c b/drivers/video/fbdev/arkfb.c
index dca9c0325b3f..082501feceb9 100644
--- a/drivers/video/fbdev/arkfb.c
+++ b/drivers/video/fbdev/arkfb.c
@@ -622,8 +622,13 @@ static int arkfb_set_par(struct fb_info *info)
 		info->tileops = NULL;
 
 		/* in 4bpp supports 8p wide tiles only, any tiles otherwise */
-		info->pixmap.blit_x = (bpp == 4) ? (1 << (8 - 1)) : (~(u32)0);
-		info->pixmap.blit_y = ~(u32)0;
+		if (bpp == 4) {
+			bitmap_zero(info->pixmap.blit_x, FB_MAX_BLIT_WIDTH);
+			set_bit(8 - 1, info->pixmap.blit_x);
+		} else {
+			bitmap_fill(info->pixmap.blit_x, FB_MAX_BLIT_WIDTH);
+		}
+		bitmap_fill(info->pixmap.blit_y, FB_MAX_BLIT_HEIGHT);
 
 		offset_value = (info->var.xres_virtual * bpp) / 64;
 		screen_size = info->var.yres_virtual * info->fix.line_length;
@@ -635,8 +640,10 @@ static int arkfb_set_par(struct fb_info *info)
 		info->tileops = &arkfb_tile_ops;
 
 		/* supports 8x16 tiles only */
-		info->pixmap.blit_x = 1 << (8 - 1);
-		info->pixmap.blit_y = 1 << (16 - 1);
+		bitmap_zero(info->pixmap.blit_x, FB_MAX_BLIT_WIDTH);
+		set_bit(8 - 1, info->pixmap.blit_x);
+		bitmap_zero(info->pixmap.blit_y, FB_MAX_BLIT_HEIGHT);
+		set_bit(16 - 1, info->pixmap.blit_y);
 
 		offset_value = info->var.xres_virtual / 16;
 		screen_size = (info->var.xres_virtual * info->var.yres_virtual) / 64;
diff --git a/drivers/video/fbdev/core/fbcon.c b/drivers/video/fbdev/core/fbcon.c
index 1183e7a871f8..4b67b32fdbc7 100644
--- a/drivers/video/fbdev/core/fbcon.c
+++ b/drivers/video/fbdev/core/fbcon.c
@@ -2485,12 +2485,12 @@ static int fbcon_set_font(struct vc_data *vc, struct console_font *font,
 	    h > FBCON_SWAP(info->var.rotate, info->var.yres, info->var.xres))
 		return -EINVAL;
 
-	if (font->width > 32 || font->height > 32)
+	if (font->width > FB_MAX_BLIT_WIDTH || font->height > FB_MAX_BLIT_HEIGHT)
 		return -EINVAL;
 
 	/* Make sure drawing engine can handle the font */
-	if (!(info->pixmap.blit_x & BIT(font->width - 1)) ||
-	    !(info->pixmap.blit_y & BIT(font->height - 1)))
+	if (!test_bit(font->width - 1, info->pixmap.blit_x) ||
+	    !test_bit(font->height - 1, info->pixmap.blit_y))
 		return -EINVAL;
 
 	/* Make sure driver can handle the font length */
@@ -3084,8 +3084,8 @@ void fbcon_get_requirement(struct fb_info *info,
 			vc = vc_cons[i].d;
 			if (vc && vc->vc_mode == KD_TEXT &&
 			    info->node == con2fb_map[i]) {
-				caps->x |= 1 << (vc->vc_font.width - 1);
-				caps->y |= 1 << (vc->vc_font.height - 1);
+				set_bit(vc->vc_font.width - 1, caps->x);
+				set_bit(vc->vc_font.height - 1, caps->y);
 				charcnt = vc->vc_font.charcount;
 				if (caps->len < charcnt)
 					caps->len = charcnt;
@@ -3096,8 +3096,10 @@ void fbcon_get_requirement(struct fb_info *info,
 
 		if (vc && vc->vc_mode == KD_TEXT &&
 		    info->node == con2fb_map[fg_console]) {
-			caps->x = 1 << (vc->vc_font.width - 1);
-			caps->y = 1 << (vc->vc_font.height - 1);
+			bitmap_zero(caps->x, FB_MAX_BLIT_WIDTH);
+			set_bit(vc->vc_font.width - 1, caps->x);
+			bitmap_zero(caps->y, FB_MAX_BLIT_HEIGHT);
+			set_bit(vc->vc_font.height - 1, caps->y);
 			caps->len = vc->vc_font.charcount;
 		}
 	}
diff --git a/drivers/video/fbdev/core/fbmem.c b/drivers/video/fbdev/core/fbmem.c
index fc206755f5f6..5ca18bfe11f6 100644
--- a/drivers/video/fbdev/core/fbmem.c
+++ b/drivers/video/fbdev/core/fbmem.c
@@ -212,8 +212,8 @@ static int fb_check_caps(struct fb_info *info, struct fb_var_screeninfo *var,
 	fbcon_get_requirement(info, &caps);
 	info->fbops->fb_get_caps(info, &fbcaps, var);
 
-	if (((fbcaps.x ^ caps.x) & caps.x) ||
-	    ((fbcaps.y ^ caps.y) & caps.y) ||
+	if (!bitmap_subset(caps.x, fbcaps.x, FB_MAX_BLIT_WIDTH) ||
+	    !bitmap_subset(caps.y, fbcaps.y, FB_MAX_BLIT_HEIGHT) ||
 	    (fbcaps.len < caps.len))
 		err = -EINVAL;
 
@@ -420,11 +420,11 @@ static int do_register_framebuffer(struct fb_info *fb_info)
 	}
 	fb_info->pixmap.offset = 0;
 
-	if (!fb_info->pixmap.blit_x)
-		fb_info->pixmap.blit_x = ~(u32)0;
+	if (bitmap_empty(fb_info->pixmap.blit_x, FB_MAX_BLIT_WIDTH))
+		bitmap_fill(fb_info->pixmap.blit_x, FB_MAX_BLIT_WIDTH);
 
-	if (!fb_info->pixmap.blit_y)
-		fb_info->pixmap.blit_y = ~(u32)0;
+	if (bitmap_empty(fb_info->pixmap.blit_y, FB_MAX_BLIT_HEIGHT))
+		bitmap_fill(fb_info->pixmap.blit_y, FB_MAX_BLIT_HEIGHT);
 
 	if (!fb_info->modelist.prev || !fb_info->modelist.next)
 		INIT_LIST_HEAD(&fb_info->modelist);
diff --git a/drivers/video/fbdev/core/svgalib.c b/drivers/video/fbdev/core/svgalib.c
index 2cba158888ea..821b89a0a645 100644
--- a/drivers/video/fbdev/core/svgalib.c
+++ b/drivers/video/fbdev/core/svgalib.c
@@ -354,12 +354,19 @@ void svga_get_caps(struct fb_info *info, struct fb_blit_caps *caps,
 {
 	if (var->bits_per_pixel == 0) {
 		/* can only support 256 8x16 bitmap */
-		caps->x = 1 << (8 - 1);
-		caps->y = 1 << (16 - 1);
+		bitmap_zero(caps->x, FB_MAX_BLIT_WIDTH);
+		set_bit(8 - 1, caps->x);
+		bitmap_zero(caps->y, FB_MAX_BLIT_HEIGHT);
+		set_bit(16 - 1, caps->y);
 		caps->len = 256;
 	} else {
-		caps->x = (var->bits_per_pixel == 4) ? 1 << (8 - 1) : ~(u32)0;
-		caps->y = ~(u32)0;
+		if (var->bits_per_pixel == 4) {
+			bitmap_zero(caps->x, FB_MAX_BLIT_WIDTH);
+			set_bit(8 - 1, caps->x);
+		} else {
+			bitmap_fill(caps->x, FB_MAX_BLIT_WIDTH);
+		}
+		bitmap_fill(caps->y, FB_MAX_BLIT_HEIGHT);
 		caps->len = ~(u32)0;
 	}
 }
diff --git a/drivers/video/fbdev/s3fb.c b/drivers/video/fbdev/s3fb.c
index 07722a5ea8ef..ff84106ecf1c 100644
--- a/drivers/video/fbdev/s3fb.c
+++ b/drivers/video/fbdev/s3fb.c
@@ -617,8 +617,13 @@ static int s3fb_set_par(struct fb_info *info)
 		info->tileops = NULL;
 
 		/* in 4bpp supports 8p wide tiles only, any tiles otherwise */
-		info->pixmap.blit_x = (bpp == 4) ? (1 << (8 - 1)) : (~(u32)0);
-		info->pixmap.blit_y = ~(u32)0;
+		if (bpp == 4) {
+			bitmap_zero(info->pixmap.blit_x, FB_MAX_BLIT_WIDTH);
+			set_bit(8 - 1, info->pixmap.blit_x);
+		} else {
+			bitmap_fill(info->pixmap.blit_x, FB_MAX_BLIT_WIDTH);
+		}
+		bitmap_fill(info->pixmap.blit_y, FB_MAX_BLIT_HEIGHT);
 
 		offset_value = (info->var.xres_virtual * bpp) / 64;
 		screen_size = info->var.yres_virtual * info->fix.line_length;
@@ -630,8 +635,10 @@ static int s3fb_set_par(struct fb_info *info)
 		info->tileops = fasttext ? &s3fb_fast_tile_ops : &s3fb_tile_ops;
 
 		/* supports 8x16 tiles only */
-		info->pixmap.blit_x = 1 << (8 - 1);
-		info->pixmap.blit_y = 1 << (16 - 1);
+		bitmap_zero(info->pixmap.blit_x, FB_MAX_BLIT_WIDTH);
+		set_bit(8 - 1, info->pixmap.blit_x);
+		bitmap_zero(info->pixmap.blit_y, FB_MAX_BLIT_HEIGHT);
+		set_bit(16 - 1, info->pixmap.blit_y);
 
 		offset_value = info->var.xres_virtual / 16;
 		screen_size = (info->var.xres_virtual * info->var.yres_virtual) / 64;
diff --git a/drivers/video/fbdev/vga16fb.c b/drivers/video/fbdev/vga16fb.c
index b485e9198201..a87bafbb119c 100644
--- a/drivers/video/fbdev/vga16fb.c
+++ b/drivers/video/fbdev/vga16fb.c
@@ -1353,7 +1353,11 @@ static int vga16fb_probe(struct platform_device *dev)
 	info->var = vga16fb_defined;
 	info->fix = vga16fb_fix;
 	/* supports rectangles with widths of multiples of 8 */
-	info->pixmap.blit_x = 1 << 7 | 1 << 15 | 1 << 23 | 1 << 31;
+	bitmap_zero(info->pixmap.blit_x, FB_MAX_BLIT_WIDTH);
+	set_bit(8 - 1, info->pixmap.blit_x);
+	set_bit(16 - 1, info->pixmap.blit_x);
+	set_bit(24 - 1, info->pixmap.blit_x);
+	set_bit(32 - 1, info->pixmap.blit_x);
 	info->flags = FBINFO_HWACCEL_YPAN;
 
 	i = (info->var.bits_per_pixel == 8) ? 256 : 16;
diff --git a/drivers/video/fbdev/vt8623fb.c b/drivers/video/fbdev/vt8623fb.c
index f8d022cb61e8..df984f3a7ff6 100644
--- a/drivers/video/fbdev/vt8623fb.c
+++ b/drivers/video/fbdev/vt8623fb.c
@@ -390,8 +390,13 @@ static int vt8623fb_set_par(struct fb_info *info)
 		info->tileops = NULL;
 
 		/* in 4bpp supports 8p wide tiles only, any tiles otherwise */
-		info->pixmap.blit_x = (bpp == 4) ? (1 << (8 - 1)) : (~(u32)0);
-		info->pixmap.blit_y = ~(u32)0;
+		if (bpp == 4) {
+			bitmap_zero(info->pixmap.blit_x, FB_MAX_BLIT_WIDTH);
+			set_bit(8 - 1, info->pixmap.blit_x);
+		} else {
+			bitmap_fill(info->pixmap.blit_x, FB_MAX_BLIT_WIDTH);
+		}
+		bitmap_fill(info->pixmap.blit_y, FB_MAX_BLIT_HEIGHT);
 
 		offset_value = (info->var.xres_virtual * bpp) / 64;
 		fetch_value  = ((info->var.xres * bpp) / 128) + 4;
@@ -408,8 +413,10 @@ static int vt8623fb_set_par(struct fb_info *info)
 		info->tileops = &vt8623fb_tile_ops;
 
 		/* supports 8x16 tiles only */
-		info->pixmap.blit_x = 1 << (8 - 1);
-		info->pixmap.blit_y = 1 << (16 - 1);
+		bitmap_zero(info->pixmap.blit_x, FB_MAX_BLIT_WIDTH);
+		set_bit(8 - 1, info->pixmap.blit_x);
+		bitmap_zero(info->pixmap.blit_y, FB_MAX_BLIT_HEIGHT);
+		set_bit(16 - 1, info->pixmap.blit_y);
 
 		offset_value = info->var.xres_virtual / 16;
 		fetch_value  = (info->var.xres / 8) + 8;
diff --git a/drivers/video/sticore.c b/drivers/video/sticore.c
index 7115b325817f..88a1758616e0 100644
--- a/drivers/video/sticore.c
+++ b/drivers/video/sticore.c
@@ -529,7 +529,7 @@ sti_select_fbfont(struct sti_cooked_rom *cooked_rom, const char *fbfont_name)
 	if (fbfont_name && strlen(fbfont_name))
 		fbfont = find_font(fbfont_name);
 	if (!fbfont)
-		fbfont = get_default_font(1024,768, ~(u32)0, ~(u32)0);
+		fbfont = get_default_font(1024, 768, NULL, NULL);
 	if (!fbfont)
 		return NULL;